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Zhao X, Hong JK, Park SY, Yun J, Jho EH. Stabilization of microbial network by co-digestion of swine manure and organic wastes. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 355:120475. [PMID: 38447511 DOI: 10.1016/j.jenvman.2024.120475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Revised: 01/30/2024] [Accepted: 02/20/2024] [Indexed: 03/08/2024]
Abstract
The production of biogas from organic waste has attracted considerable interest as a solution to current energy and waste management challenges. This study explored the methane (CH4) production potential of swine manure (SM), food waste (FW), and tomato waste (TW) and the changes in the microbial community involved in the anaerobic digestion process. The results revealed that the CH4 production potentials of the four kinds of SM samples were influenced by the characteristics of SM (e.g., age and storage period). Among the four kinds of SM samples, the CH4 yield from the manure directly sampled from primiparous sows (SM3) was the highest. The CH4 yield was significantly improved when SM3 was co-digested with FW, but not with TW. The addition of SM fostered a stable CH4 production community by enhancing the interaction between methanogens and syntrophic bacteria. Furthermore, the addition of FW as a co-substrate may improve the functional redundancy structure of the methanogenesis-associated network. Overall, the characteristics of SM must be considered to achieve consistent CH4 yield efficiency from anaerobic digestion since CH4 production potentials of SM can be different. Also, the contribution of co-substrate to the synergistic relationship between methanogens and syntrophic bacteria can be considered when a co-substrate is selected in order to enhace CH4 yield from SM.
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Affiliation(s)
- Xin Zhao
- Department of Civil and Environmental Engineering, College of Engineering, Seoul National University, 1 Gwanak-ro, Gwanakgu, Seoul, 08826, Republic of Korea
| | - Jin-Kyung Hong
- Department of Environmental and Energy Engineering, Yonsei University, Wonju, 26493, Republic of Korea.
| | - So Yun Park
- Department of Agricultural Chemistry, Chonnam National University, Gwangju, 61186, Republic of Korea
| | - Jinhyeon Yun
- Department of Animal Science, Chonnam National University, Gwangju, 61186, Republic of Korea
| | - Eun Hea Jho
- Department of Agricultural Chemistry, Chonnam National University, Gwangju, 61186, Republic of Korea; Department of Agricultural and Biological Chemistry, Chonnam National University, Gwangju, 61186, Republic of Korea.
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Yang Y, Bu J, Tiong YW, Xu S, Zhang J, He Y, Zhu M, Tong YW. Enhanced thermophilic dark fermentation of hydrogen production from food waste by Fe-modified biochar. ENVIRONMENTAL RESEARCH 2024; 244:117946. [PMID: 38104915 DOI: 10.1016/j.envres.2023.117946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2023] [Revised: 12/02/2023] [Accepted: 12/12/2023] [Indexed: 12/19/2023]
Abstract
The industrialization of hydrogen production through dark fermentation of food waste faces challenges, such as low yields and unpredictable fermentation processes. Biochar has emerged as a promising green additive to enhance hydrogen production in dark fermentation. Our study demonstrated that the introduction of Fe-modified biochar (Fe-L600) significantly boosted hydrogen production during thermophilic dark fermentation of food waste. The addition of Fe-L600 led to a remarkable 31.19% increase in hydrogen yield and shortened the time needed for achieving stabilization of hydrogen production from 18 h to 12 h. The metabolite analysis revealed an enhancement in the butyric acid pathway as the molar ratio of acetic acid to butyric acid decreased from 3.09 to 2.69 but hydrogen yield increased from 57.12 ± 1.48 to 76.78 ± 2.77 mL/g, indicating Fe-L600 improved hydrogen yield by regulating crucial metabolic pathways of hydrogen production. The addition of Fe-L600 also promoted the release of Fe2+ and Fe3+ and increased the concentrations of Fe2+ and Fe3+ in the fermentation system, which might promote the activity of hydrogenase and ferredoxin. Microbial community analysis indicated a substantial increase in the relative abundance of Thermoanaerobacterium after thermophilic dark fermentation. The relative abundances of microorganisms responsible for hydrolysis and acidogenesis were also observed to be improved in the system with Fe-L600 addition. This research provides a feasible strategy for improving hydrogen production of food waste and deepens the understanding of the mechanisms of biochar.
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Affiliation(s)
- Yongjun Yang
- School of Biology and Biological Engineering, Guangdong Key Laboratory of Fermentation and Enzyme Engineering, South China University of Technology, Guangzhou Higher Education Mega Center, Panyu, Guangzhou, 510006, People's Republic of China
| | - Jie Bu
- NUS Environmental Research Institute, National University of Singapore, 1 Create Way, 138602, Singapore; Energy and Environmental Sustainability Solutions for Megacities (E2S2) Phase II, Campus for Research Excellence and Technological Enterprise (CREATE), 1 CREATE Way, 138602, Singapore
| | - Yong Wei Tiong
- NUS Environmental Research Institute, National University of Singapore, 1 Create Way, 138602, Singapore; Energy and Environmental Sustainability Solutions for Megacities (E2S2) Phase II, Campus for Research Excellence and Technological Enterprise (CREATE), 1 CREATE Way, 138602, Singapore
| | - Shuai Xu
- NUS Environmental Research Institute, National University of Singapore, 1 Create Way, 138602, Singapore
| | - Jingxin Zhang
- China-UK Low Carbon College, Shanghai Jiao Tong University, Shanghai, 201306, People's Republic of China
| | - Yiliang He
- China-UK Low Carbon College, Shanghai Jiao Tong University, Shanghai, 201306, People's Republic of China
| | - Mingjun Zhu
- School of Biology and Biological Engineering, Guangdong Key Laboratory of Fermentation and Enzyme Engineering, South China University of Technology, Guangzhou Higher Education Mega Center, Panyu, Guangzhou, 510006, People's Republic of China.
| | - Yen Wah Tong
- NUS Environmental Research Institute, National University of Singapore, 1 Create Way, 138602, Singapore; Energy and Environmental Sustainability Solutions for Megacities (E2S2) Phase II, Campus for Research Excellence and Technological Enterprise (CREATE), 1 CREATE Way, 138602, Singapore; Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive, 117585, Singapore.
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Zhang Y, Ni JQ, Liu C, Ke Y, Zheng Y, Zhen G, Xie S. Hydrogen production promotion and energy saving in anaerobic co-fermentation of heat-treated sludge and food waste. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:14831-14844. [PMID: 38285252 DOI: 10.1007/s11356-024-31851-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Accepted: 12/31/2023] [Indexed: 01/30/2024]
Abstract
The objective of this paper is to gain insights into the synergistic advantage of anaerobic co-fermentation of heat-treated sludge (HS) with food waste (FW) and heat-treated food waste (HFW) for hydrogen production. The results showed that, compared with raw sludge (RS) mixed with FW (RS-FW), the co-substrate of HS mixed with either FW (HS-FW) or HFW (HS-HFW) effectively promoted hydrogen production, with HS-HFW promoted more than HS-FW. The maximum specific hydrogen production (MSHP) and the maximum hydrogen concentration (MHC) of HS-HFW were 40.53 mL H2/g dry weight and 57.22%, respectively, and 1.21- and 1.45-fold as high as those from HS-FW. The corresponding fermentation was ethanol type for HS-HFW and butyric acid type for HS-FW. The net energy production from RS-FW and HS-FW was both negative, but it was positive (2.57 MJ) from 40% HFW addition to HS-HFW. Anaerobic fermentation was more viable for HS-HFW.
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Affiliation(s)
- Yuchen Zhang
- Institute of Environmental Science, College of Environmental and Resource Sciences and College of Carbon Neutral Modern Industry, Fujian Key Laboratory of Pollution Control and Resource Reuse, Fujian Normal University, Fuzhou, 350007, People's Republic of China
- Fujian College and University Engineering Research Center for Municipal (Solid) Waste Resourceization and Management, Fuzhou, 350007, People's Republic of China
| | - Ji-Qin Ni
- Department of Agricultural and Biological Engineering, Purdue University, West Lafayette, IN, 47907, USA
| | - Changqing Liu
- School of Geographical Sciences and School of Carbon Neutrality Future Technology, Fujian Normal University, Fuzhou, 350007, People's Republic of China.
| | - Yihong Ke
- Institute of Environmental Science, College of Environmental and Resource Sciences and College of Carbon Neutral Modern Industry, Fujian Key Laboratory of Pollution Control and Resource Reuse, Fujian Normal University, Fuzhou, 350007, People's Republic of China
- Fujian College and University Engineering Research Center for Municipal (Solid) Waste Resourceization and Management, Fuzhou, 350007, People's Republic of China
| | - Yuyi Zheng
- Institute of Environmental Science, College of Environmental and Resource Sciences and College of Carbon Neutral Modern Industry, Fujian Key Laboratory of Pollution Control and Resource Reuse, Fujian Normal University, Fuzhou, 350007, People's Republic of China
- Fujian College and University Engineering Research Center for Municipal (Solid) Waste Resourceization and Management, Fuzhou, 350007, People's Republic of China
| | - Guangyin Zhen
- School of Ecological and Environmental Science, East China Normal University, Shanghai, 200241, People's Republic of China
| | - Sihuang Xie
- Institute of Environmental Science, College of Environmental and Resource Sciences and College of Carbon Neutral Modern Industry, Fujian Key Laboratory of Pollution Control and Resource Reuse, Fujian Normal University, Fuzhou, 350007, People's Republic of China
- School of Civil Mining and Environmental Engineering, University of Wollongong, Wollongong, NSW, 2522, Australia
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Shrestha S, Pandey R, Aryal N, Lohani SP. Recent advances in co-digestion conjugates for anaerobic digestion of food waste. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 345:118785. [PMID: 37611516 DOI: 10.1016/j.jenvman.2023.118785] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 06/07/2023] [Accepted: 08/09/2023] [Indexed: 08/25/2023]
Abstract
Anaerobic digestion (AD) is a biological process that breaks down organic waste materials, such as food waste (FW) that produces biogas and digestate. The biogas can be utilized as biofuel, and digestate could be applied as fertilizer. However, AD of FW alone has limitations on optimal degradation, digester stability and biogas yield. Co-digestion of FW along with other organic wastes such as animal manure, agricultural residue, sewage sludge and industrial organic waste, has shown substantial improvement in degradation process with increased biogas yield. The inadequacies in FW for optimum AD, like low carbon-to-nitrogen ratio (C/N ratio), lack of trace elements and irregular particle sizes, can be nullified by adding appropriate co-digestion conjugates. This review aims to describe the characteristic inadequacies of FW and examines the effect on mesophilic co-digestion of FW with animal manure, waste sludge and agricultural wastes for biogas production optimization. A critical review on the impact of pretreatment and co-digestion to enrich the methane (CH4) content in biogas has been performed. The review also examines the microbial community shift due to co-digestion, which is critical for the stability of an anaerobic digester. Finally, it discusses the prospects and challenges for the widespread application of the co-digestion technique as an effective organic waste management practice.
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Affiliation(s)
- Sujesh Shrestha
- Department of Process, Energy and Environmental Technology, University of South-Eastern Norway, Campus Porsgrunn, Norway; Department of Environmental Science and Engineering, Kathmandu University, Nepal
| | - Rajeev Pandey
- Renewable and Sustainable Energy Laboratory, Department of Mechanical Engineering, Kathmandu University, Nepal
| | - Nabin Aryal
- Department of Process, Energy and Environmental Technology, University of South-Eastern Norway, Campus Porsgrunn, Norway.
| | - Sunil Prasad Lohani
- Renewable and Sustainable Energy Laboratory, Department of Mechanical Engineering, Kathmandu University, Nepal.
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5
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Liu K, Lv L, Li W, Ren Z, Wang P, Liu X, Gao W, Sun L, Zhang G. A comprehensive review on food waste anaerobic co-digestion: Research progress and tendencies. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 878:163155. [PMID: 37001653 DOI: 10.1016/j.scitotenv.2023.163155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2023] [Revised: 03/22/2023] [Accepted: 03/26/2023] [Indexed: 05/13/2023]
Abstract
Food waste (FW) anaerobic digestion systems are prone to imbalance during long-term operation, and the imbalance mechanism is complex. Anaerobic co-digestion (AcoD) of FW and other substrates can overcome the performance limitations of single digestion, allowing for the mutual use of multiple wastes and resource recovery. Research on the AcoD of FW has been widely conducted and successfully applied to a practical engineering scale. Therefore, this review describes the research progress of AcoD of FW with other substrates. By analyzing the problems and challenges faced by AcoD of FW, the synergistic effects and influencing factors of different biomass wastes are discussed, and improvement strategies to improve the performance of AcoD of FW are summarized from different reaction stages of anaerobic digestion. By combing the research progress of AcoD of FW, it provides a reference for the optimization and improvement of the performance of the co-digestion system.
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Affiliation(s)
- Kaili Liu
- Tianjin Key Laboratory of Clean Energy and Pollution Control, School of Energy and Environmental Engineering, Hebei University of Technology, Tianjin 300401, PR China
| | - Longyi Lv
- Tianjin Key Laboratory of Clean Energy and Pollution Control, School of Energy and Environmental Engineering, Hebei University of Technology, Tianjin 300401, PR China.
| | - Weiguang Li
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology (SKLUWRE, HIT), Harbin 150090, PR China
| | - Zhijun Ren
- Tianjin Key Laboratory of Clean Energy and Pollution Control, School of Energy and Environmental Engineering, Hebei University of Technology, Tianjin 300401, PR China
| | - Pengfei Wang
- Tianjin Key Laboratory of Clean Energy and Pollution Control, School of Energy and Environmental Engineering, Hebei University of Technology, Tianjin 300401, PR China
| | - Xiaoyang Liu
- Tianjin Key Laboratory of Clean Energy and Pollution Control, School of Energy and Environmental Engineering, Hebei University of Technology, Tianjin 300401, PR China
| | - Wenfang Gao
- Tianjin Key Laboratory of Clean Energy and Pollution Control, School of Energy and Environmental Engineering, Hebei University of Technology, Tianjin 300401, PR China
| | - Li Sun
- Tianjin Key Laboratory of Clean Energy and Pollution Control, School of Energy and Environmental Engineering, Hebei University of Technology, Tianjin 300401, PR China
| | - Guangming Zhang
- Tianjin Key Laboratory of Clean Energy and Pollution Control, School of Energy and Environmental Engineering, Hebei University of Technology, Tianjin 300401, PR China.
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Yu C, Dongsu B, Tao Z, Xintong J, Ming C, Siqi W, Zheng S, Yalei Z. Anaerobic co-digestion of three commercial bio-plastic bags with food waste: Effects on methane production and microbial community structure. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 859:159967. [PMID: 36347286 DOI: 10.1016/j.scitotenv.2022.159967] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2022] [Revised: 10/16/2022] [Accepted: 11/01/2022] [Indexed: 06/16/2023]
Abstract
The emergence of bioplastic bags as a replacement for traditional petroleum-based plastic bags is promising for their simultaneous anaerobic digestion with food waste. In this study, the degradation of three bioplastic bags is evaluated during anaerobic co-digestion with food waste under mesophilic/thermophilic conditions, and the results indicated PBAT/PLA/starch > PLA > PBAT for methane production rate. The PBAT/PLA/starch mixture produced 23.4 ml/g of methane at 55 °C, and the cumulative methane production increased by 28.4 % compared to the control. In addition, the lag time before methane production was reduced by one to four days when anaerobic co-digestion was performed under thermophilic conditions, and the conversion of the bioplastics improved by 9.11-11.2 %. Microscopy further showed obvious physical degradation of the PBAT/PLA/starch material. The FTIR analysis showed that the characteristic peaks of the material at 3320, 2957, and 934 cm-1 decreased significantly after anaerobic fermentation. The biodegradability of the polymer decreased with an increase in the content of the crystalline area in the structure. The addition of a comonomer reduced the crystallinity of the polymer. In addition, the biodegradability was increased by adjusting the hydrolysis reaction and microbial activity of the polymer surface. An analysis of the structural features of the microbial communities revealed that Archaea exhibited different biodiversity at distinct temperatures. In particular, under thermophilic conditions, the relative abundance of Methanothermobacter was 56.0 %, and it plays an important role in the anaerobic degradation of PBAT/PLA/starch materials, while bacterial communities showed smaller differences. Overall, the bioplastic was able to be co-digested anaerobically with food waste to produce renewable energy. This study provides a plan for the practical application of biodegradable plastic bag collection for the combined treatment of food waste in anaerobic digesters. It provides a theoretical basis for modifications of bioplastic and domestication of anaerobic microorganisms.
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Affiliation(s)
- Cheng Yu
- Institute of New Rural Development, Tongji University, Shanghai 200092, China; School of Chemistry and Environmental Engineering, Shanghai Institute of Technology, Shanghai 200233, China
| | - Bi Dongsu
- School of Chemistry and Environmental Engineering, Shanghai Institute of Technology, Shanghai 200233, China
| | - Zhang Tao
- College of Design and Innovation, Tongji University, Shanghai 200092, China
| | - Jiang Xintong
- Institute of New Rural Development, Tongji University, Shanghai 200092, China; School of Chemistry and Environmental Engineering, Shanghai Institute of Technology, Shanghai 200233, China
| | - Chen Ming
- Institute of New Rural Development, Tongji University, Shanghai 200092, China; School of Chemistry and Environmental Engineering, Shanghai Institute of Technology, Shanghai 200233, China
| | - Wang Siqi
- Institute of New Rural Development, Tongji University, Shanghai 200092, China; School of Chemistry and Environmental Engineering, Shanghai Institute of Technology, Shanghai 200233, China
| | - Shen Zheng
- Institute of New Rural Development, Tongji University, Shanghai 200092, China.
| | - Zhang Yalei
- College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
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7
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Lei Z, Zhang S, Wang L, Li Q, Li YY, Wang XC, Chen R. Biochar enhances the biotransformation of organic micropollutants (OMPs) in an anaerobic membrane bioreactor treating sewage. WATER RESEARCH 2022; 223:118974. [PMID: 35988338 DOI: 10.1016/j.watres.2022.118974] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2022] [Revised: 08/04/2022] [Accepted: 08/11/2022] [Indexed: 06/15/2023]
Abstract
The removal of emerging organic micropollutants (OMPs) in anaerobic membrane bioreactors (AnMBRs) has garnered considerable attention owing to the rapid development of AnMBR technology and the increased environmental risk caused by OMP discharge. We investigated the removal efficiency of 22 typical OMPs from sewage being treated in an AnMBR, and implemented and evaluated an upgrading strategy by adding biochar. The average removal efficiency of OMPs was only 76.8% due to hydrophilic OMPs containing electron-withdrawing groups (ketoprofen, ibuprofen, diclofenac, and carbamazepine) being poorly removed. Biochar addition (5.0 g/L) promoted the removal of recalcitrant OMPs by 45%, leading to an enhanced removal efficiency of 88.7%. Although biochar has a high adsorption capacity to different OMPs, the biotransformation rather than sorption removal efficiency of 13 of the 22 OMPs was largely enhanced, suggesting that adsorption-biotransformation was the main approach by which biochar enhances the OMP removal. Biotransformation test and microbial analysis revealed that the enrichment of species (Flavobacterium, Massilia, Acinetobacter, and Cloacibacterium) involved in OMP biotransformation on biochar contributed largely to the enhanced biotransformation removal efficiency of OMPs. In this way, the enhanced electron transfer activity and syntrophic metabolism between hydrogenotrophic methanogens and species that oxidize acetate to H2/CO2 on biochar jointly contributed to the stable CH4 production and OMP biotransformation. This study provides a promising strategy to enhance the OMP removal in AnMBRs and improves our understanding of the underlying mechanism of biochar-amended OMP removal in anaerobic treatment systems.
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Affiliation(s)
- Zhen Lei
- Key Lab of Environmental Engineering, Shaanxi Province, Xi'an University of Architecture and Technology, No.13 Yanta Road, Xi'an 710055, PR China
| | - Shixin Zhang
- Key Lab of Environmental Engineering, Shaanxi Province, Xi'an University of Architecture and Technology, No.13 Yanta Road, Xi'an 710055, PR China
| | - Lianxu Wang
- Key Lab of Environmental Engineering, Shaanxi Province, Xi'an University of Architecture and Technology, No.13 Yanta Road, Xi'an 710055, PR China
| | - Qian Li
- Key Lab of Environmental Engineering, Shaanxi Province, Xi'an University of Architecture and Technology, No.13 Yanta Road, Xi'an 710055, PR China
| | - Yu-You Li
- Department of Civil and Environmental Engineering, Graduate School of Engineering, Tohoku University, 6-6-06 Aza-Aoba, Aramaki, Aoba-ku, Sendai, Miyagi 980-8579, Japan
| | - Xiaochang C Wang
- International S&T Cooperation Center for Urban Alternative Water Resources Development, Key Laboratory of Northwest Water Resource, Environment and Ecology, MOE, Xi'an University of Architecture and Technology, No.13 Yanta Road, Xi'an 710055, PR China
| | - Rong Chen
- Key Lab of Environmental Engineering, Shaanxi Province, Xi'an University of Architecture and Technology, No.13 Yanta Road, Xi'an 710055, PR China; International S&T Cooperation Center for Urban Alternative Water Resources Development, Key Laboratory of Northwest Water Resource, Environment and Ecology, MOE, Xi'an University of Architecture and Technology, No.13 Yanta Road, Xi'an 710055, PR China.
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8
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Mercado JV, Koyama M, Nakasaki K. Co-occurrence network analysis reveals loss of microbial interactions in anaerobic digester subjected to repeated organic load shocks. WATER RESEARCH 2022; 221:118754. [PMID: 35759844 DOI: 10.1016/j.watres.2022.118754] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 06/11/2022] [Accepted: 06/13/2022] [Indexed: 06/15/2023]
Abstract
Fluctuations in the anaerobic digestion (AD) organic loading rate (OLR) cause shocks to the AD microbiome, which lead to unstable methane productivity. Managing these fluctuations requires a larger digester, which is impractical for community-scale applications, limiting the potential of AD in advancing a circular economy. To allow operation of small-scale AD while managing OLR fluctuations, we need to tackle the issue through elucidation of the microbial community dynamics via 16S rRNA gene sequencing. This study elucidated the interrelation of the AD performance and the dynamics of the microbial interactions within its microbiome in response to repeated high OLR shocks at different frequencies. The OLR shocks were equivalent to 4 times the baseline OLR of 2 g VS/L/d. We found that less frequent organic load shocks result to deterioration of methane productivity. Co-occurrence network analysis shows that this coincides with the breakdown of the microbiome network structure. This suggests loss of microbial interactions necessary in maintaining stable AD. Identification of species influencing the network structure revealed that a species under the genus Anaerovorax has the greatest influence, while orders Spirochaetales and Synergistales represent the greatest number of the influential species. We inferred that the impact imposed by the OLR shocks shifted the microbiome activity towards biochemical pathways that are not contributing to methane production. Establishing a small-scale AD system that permits OLR fluctuations would require developing an AD microbiome resilient to infrequent organic loading shocks.
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Affiliation(s)
- Jericho Victor Mercado
- School of Environment and Society, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8550, Japan
| | - Mitsuhiko Koyama
- School of Environment and Society, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8550, Japan
| | - Kiyohiko Nakasaki
- School of Environment and Society, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8550, Japan.
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9
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Abdallah M, Greige S, Beyenal H, Harb M, Wazne M. Investigating microbial dynamics and potential advantages of anaerobic co-digestion of cheese whey and poultry slaughterhouse wastewaters. Sci Rep 2022; 12:10529. [PMID: 35732864 PMCID: PMC9217800 DOI: 10.1038/s41598-022-14425-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Accepted: 06/07/2022] [Indexed: 11/10/2022] Open
Abstract
Resource recovery and prevention of environmental pollution are key goals for sustainable development. It is widely reported that agro-industrial activities are responsible for the discharge of billions of liters of wastewater to the environment. Anaerobic digestion of these energy rich agro-industrial wastewaters can simultaneously mitigate environmental pollution and recover embedded energy as methane gas. In this study, an assessment of mono- and co-digestion of cheese whey wastewater (CWW) and poultry slaughterhouse wastewater (PSW) was conducted in 2.25-L lab-scale anaerobic digesters. Treatment combinations evaluated included CWW (R1), PSW (R2), 75:25 CWW:PSW (R3), 25:75 CWW:PSW (R4), and 50:50 CWW:PSW (R5). The digestion efficiencies of the mixed wastewaters were compared to the weighted efficiencies of the corresponding combined mono-digested samples. R4, with a mixture of 25% CWW and 75% PSW, achieved the greatest treatment efficiency. This corresponded with an average biodegradability of 84%, which was greater than for R1 and R2 at 68.5 and 71.9%, respectively. Similarly, R4 produced the highest average cumulative methane value compared to R1 and R2 at 1.22× and 1.39× for similar COD loading, respectively. The modified Gompertz model provided the best fit for the obtained methane production data, with lag time decreasing over progressive treatment cycles. PCoA and heatmap analysis of relative microbial abundances indicated a divergence of microbial communities based on feed type over the treatment cycles. Microbial community analysis showed that genus Petrimonas attained the highest relative abundance (RA) at up to 38.9% in the first two cycles, then subsequently decreased to near 0% for all reactors. Syntrophomonas was highly abundant in PSW reactors, reaching up to 36% RA. Acinetobacter was present mostly in CWW reactors with a RA reaching 56.5%. The methanogenic community was dominated by Methanothrix (84.3–99.9% of archaea). The presence of phosphate and Acinetobacter in CWW feed appeared to reduce the treatment efficiency of associated reactors. Despite Acinetobacter being strictly aerobic, previous and current results indicate its survival under anaerobic conditions, with the storage of phosphate likely playing a key role in its ability to scavenge acetate during the digestion process.
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Affiliation(s)
- M Abdallah
- Civil Engineering, Lebanese American University, 301 Bassil Building, Byblos, Lebanon
| | - S Greige
- Civil Engineering, Lebanese American University, 301 Bassil Building, Byblos, Lebanon
| | - H Beyenal
- The Gene and Linda Voiland School of Chemical Engineering and Bioengineering, Washington State University, Pullman, WA, USA
| | - M Harb
- Civil Engineering, Lebanese American University, 301 Bassil Building, Byblos, Lebanon
| | - M Wazne
- Civil Engineering, Lebanese American University, 301 Bassil Building, Byblos, Lebanon.
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10
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Khuntia HK, Paliwal A, Kumar DR, Chanakya HN. Review on solid-state anaerobic digestion of lignocellulosic biomass and organic solid waste. ENVIRONMENTAL MONITORING AND ASSESSMENT 2022; 194:514. [PMID: 35726107 DOI: 10.1007/s10661-022-10160-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Accepted: 05/28/2022] [Indexed: 06/15/2023]
Abstract
Sustainable management of organic solid wastes especially the municipal solid waste (MSW) is essential for the realization of various sustainable development goals (SDGs). Resource recovery centric waste processing technologies generate valorizable products to meet the operations and maintenance (O&M) costs while reducing the GHG emissions. Solid-state anaerobic digestion (SSAD) of organic solid wastes is a biomethanation process performed at a relatively higher total solids (TS) loading in the range of 10-45%. SSAD overcomes various limitations posed by conventional anaerobic slurry digesters such as higher degradable matter per unit volume of the bioreactor resulting in a smaller footprint, low freshwater consumption, low wastewater generation, simple upstream and downstream processes, relatively lower operation, and maintenance costs. This review elucidates the recent developments and critical assessment of different aspects of SSAD, such as bioreactor design, operational strategy, process performances, mass balance, microbial ecology, applications, and mathematical models. A critical assessment revealed that the operating scale of SSAD varies between 1000 and 100,000 ts/year at organic loading rate (OLR) of 2-15 g volatile solids (VS)/L·day. The SSAD experiences process failures due to the formation of volatile fatty acids (VFAs), biogas pockets and clogging of the digestate outlet. Acclimatization of microbes accelerates the startup phase, steady-state performances, and the enrichment of syntrophic microbes with 10-50 times greater population of cellulolytic and xylanolytic microbes in thermophilic SSAD over mesophilic SSAD. Experimental limitations in the accurate determination of rate constants and the oversimplification of biochemical reactions result in an inaccurate prediction by the models.
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Affiliation(s)
- Himanshu K Khuntia
- Centre for Sustainable Technologies, Indian Institute of Science, Bengaluru, India, 560012.
| | - Aastha Paliwal
- Centre for Sustainable Technologies, Indian Institute of Science, Bengaluru, India, 560012
| | - D Ravi Kumar
- Centre for Sustainable Technologies, Indian Institute of Science, Bengaluru, India, 560012
| | - H N Chanakya
- Centre for Sustainable Technologies, Indian Institute of Science, Bengaluru, India, 560012
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11
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Cruz-Hernández MA, Mendoza-Herrera A, Bocanegra-García V, Rivera G. Azospirillum spp. from Plant Growth-Promoting Bacteria to Their Use in Bioremediation. Microorganisms 2022; 10:1057. [PMID: 35630499 PMCID: PMC9143718 DOI: 10.3390/microorganisms10051057] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Revised: 05/17/2022] [Accepted: 05/18/2022] [Indexed: 02/01/2023] Open
Abstract
Xenobiotic contamination, a worldwide environmental concern, poses risks for humans, animals, microbe health, and agriculture. Hydrocarbons and heavy metals top the list of toxins that represent a risk to nature. This review deals with the study of Azospirillum sp., widely reported as plant growth-promoting bacteria in various cultures. However, its adaptation properties in adverse environments make it a good candidate for studying remediation processes in environments polluted with hydrocarbons and heavy metals. This review includes studies that address its properties as a plant growth promoter, its genomics, and that evaluate its potential use in the remediation of hydrocarbons and heavy metals.
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Affiliation(s)
- María Antonia Cruz-Hernández
- Laboratorio Interacción Ambiente Microorganismo, Centro de Biotecnología Genómica, Instituto Politécnico Nacional, Reynosa 88710, Mexico; (M.A.C.-H.); (A.M.-H.); (V.B.-G.)
| | - Alberto Mendoza-Herrera
- Laboratorio Interacción Ambiente Microorganismo, Centro de Biotecnología Genómica, Instituto Politécnico Nacional, Reynosa 88710, Mexico; (M.A.C.-H.); (A.M.-H.); (V.B.-G.)
| | - Virgilio Bocanegra-García
- Laboratorio Interacción Ambiente Microorganismo, Centro de Biotecnología Genómica, Instituto Politécnico Nacional, Reynosa 88710, Mexico; (M.A.C.-H.); (A.M.-H.); (V.B.-G.)
| | - Gildardo Rivera
- Laboratorio de Biotecnología Farmacéutica, Centro de Biotecnología Genómica, Instituto Politécnico Nacional, Reynosa 88710, Mexico
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12
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Zhang L, Hu Y, Huang H, Ren L, Zhang J, Yan B, Luo L, Liu J, Gu S. Response of bacterial community to iron oxide nanoparticles during agricultural waste composting and driving factors analysis. BIORESOURCE TECHNOLOGY 2022; 345:126530. [PMID: 34896534 DOI: 10.1016/j.biortech.2021.126530] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 12/02/2021] [Accepted: 12/04/2021] [Indexed: 06/14/2023]
Abstract
The succession of bacterial communities and their function, and the core microorganisms for water soluble organic carbon (WSC) and organic matter (OM) changes during agricultural waste composting with addition of iron oxide nanomaterials (FeONPs, Fe2O3 NPs and Fe3O4 NPs) were investigated. Moreover, driving factors for bacterial composition and metabolism were analyzed. Results showed that FeONPs treatments increased the relative abundance of thermophilic microorganisms for OM degradation. Most of the core genera were responsible for decomposition of OM and synthesis of WSC. Additionally, FeONPs promoted the metabolism of amino acids. The most significant factors for dominant genera in control, Fe2O3 NPs and Fe3O4 NPs group were moisture (62.1%), moisture (62.0%) and OM (58.2%), respectively. For metabolism, the most significant factors in control, Fe2O3 NPs and Fe3O4 NPs group were temperature (57.2%), NO3--N (60.5%), NO3--N (62.6%), respectively. The relationships between compost properties, bacterial community and metabolism were changed by FeONPs.
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Affiliation(s)
- Lihua Zhang
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, PR China
| | - Yunlong Hu
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, PR China
| | - Hongli Huang
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, PR China
| | - Liheng Ren
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, PR China
| | - Jiachao Zhang
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, PR China.
| | - Binghua Yan
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, PR China
| | - Lin Luo
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, PR China
| | - Jun Liu
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, PR China
| | - Sijia Gu
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, PR China
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13
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Kassongo J, Shahsavari E, Ball AS. Substrate-to-inoculum ratio drives solid-state anaerobic digestion of unamended grape marc and cheese whey. PLoS One 2022; 17:e0262940. [PMID: 35085345 PMCID: PMC8794148 DOI: 10.1371/journal.pone.0262940] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2021] [Accepted: 01/07/2022] [Indexed: 11/18/2022] Open
Abstract
Inoculation dose is a key operational parameter for the solid-state anaerobic digestion (SS-AD) of lignocellulosic biomass, maximum methane recovery, and stable digester performance. The novelty of this study was the co-digestion of unamended full-strength grape marc and cheese whey for peak methane extraction at variable inoculation levels. An acclimatised digestate from a preceding anaerobic treatment was used as a downstream inoculum. The impact of inoculum size (wet weight) was evaluated at 0/10, 5/5, 7/3 and 9/1 substrate-to-inoculum (S/I) ratios, corresponding to an initial concentration of 20-30% total solids (TS) in digesters over 58 days at 45°C. The optimal 7/3 S/I produced the highest cumulative methane yield, 6.45 L CH4 kg-1 VS, coinciding with the lowest initial salinity at 11%; the highest volumetric methane productivity rate of 0.289±0.044 L CH4 LWork-1 d-1; the highest average COD/N ratio of 9.88; the highest final pH of 9.13, and a maximum 15.07% elemental carbon removal; for a lag time of 9.4 days. This study identified an optimal inoculation dose and opens up an avenue for the direct co-digestion of grape marc and cheese whey without requirements for substrate pretreatment, thus improving the overall bioenergy profile of the winery and dairy joint resource recovery operations.
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Affiliation(s)
- Josue Kassongo
- ARC Training Centre for the Transformation of Australia’s Biosolids Resource, School of Science, RMIT University, Melbourne, VIC, Australia
| | - Esmaeil Shahsavari
- ARC Training Centre for the Transformation of Australia’s Biosolids Resource, School of Science, RMIT University, Melbourne, VIC, Australia
| | - Andrew S. Ball
- ARC Training Centre for the Transformation of Australia’s Biosolids Resource, School of Science, RMIT University, Melbourne, VIC, Australia
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14
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Gao B, Wang Y, Huang L, Liu S. Study on the performance of HNO 3-modified biochar for enhanced medium temperature anaerobic digestion of food waste. WASTE MANAGEMENT (NEW YORK, N.Y.) 2021; 135:338-346. [PMID: 34597970 DOI: 10.1016/j.wasman.2021.09.020] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 09/17/2021] [Accepted: 09/19/2021] [Indexed: 06/13/2023]
Abstract
Biochar can help promote direct interspecies electron transfer (DIET) and increase methane production; the surface redox groups play a constructive role in these processes. This study attempted to improve the anaerobic digestion (AD) performance by modifying biochar with HNO3 to increase its redox activity. A comparative experimental study, raw biochar (BC0) and biochar treated with HNO3 for 6 h (BC6), were conducted to investigate the effect of HNO3 treatment on the medium temperature AD performance of food waste. Both BC0 and BC6 can enhance CH4 yield and facilitate the degradation of volatile fatty acids. The enhanced yield of CH4 was 36% for BC0 and 90% for BC6, respectively. Biochar can also enhance methanogenesis, presumably owing to direct interspecific electron transfer (DIET). Compared with BC0, BC6 had a higher redox activity and a smaller conductivity. It was supposed that BC0 mediated DIET through its conductivity, whereas BC6 accelerated DIET by surface redox groups.
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Affiliation(s)
- Biao Gao
- School of Environmental Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China
| | - Yu Wang
- School of Environmental Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China
| | - Lei Huang
- School of Environmental Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China
| | - Shiming Liu
- School of Environmental Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China.
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15
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Aigle A, Bourgeois E, Marjolet L, Houot S, Patureau D, Doelsch E, Cournoyer B, Galia W. Relative Weight of Organic Waste Origin on Compost and Digestate 16S rRNA Gene Bacterial Profilings and Related Functional Inferences. Front Microbiol 2021; 12:667043. [PMID: 34054773 PMCID: PMC8160089 DOI: 10.3389/fmicb.2021.667043] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Accepted: 04/06/2021] [Indexed: 11/13/2022] Open
Abstract
Even though organic waste (OW) recycling via anaerobic digestion (AD) and composting are increasingly used, little is known about the impact of OW origin (fecal matters and food and vegetable wastes) on the end products' bacterial contents. The hypothesis of a predictable bacterial community structure in the end products according to the OW origin was tested. Nine OW treatment plants were selected to assess the genetic structure of bacterial communities found in raw OW according to their content in agricultural and urban wastes and to estimate their modifications through AD and composting. Two main bacterial community structures among raw OWs were observed and matched a differentiation according to the occurrences of urban chemical pollutants. Composting led to similar 16S rRNA gene OTU profiles whatever the OW origin. With a significant shift of about 140 genera (representing 50% of the bacteria), composting was confirmed to largely shape bacterial communities toward similar structures. The enriched taxa were found to be involved in detoxification and bioremediation activities. This process was found to be highly selective and favorable for bacterial specialists. Digestates showed that OTU profiles differentiated into two groups according to their relative content in agricultural (manure) and urban wastes (mainly activated sludge). About one third of the bacterial taxa was significantly affected by AD. In digestates of urban OW, this sorting led to an enrichment of 32 out of the 50 impacted genera, while for those produced from agricultural or mixed urban/agricultural OW (called central OW), a decay of 54 genera over 60 was observed. Bacteria from activated sludge appeared more fit for AD than those of other origins. Functional inferences showed AD enriched genera from all origins to share similar functional traits, e.g., chemoheterotrophy and fermentation, while being often taxonomically distinct. The main functional traits among the dominant genera in activated sludge supported a role in AD. Raw OW content in activated sludge was found to be a critical factor for predicting digestate bacterial contents. Composting generated highly predictable and specialized community patterns whatever the OW origin. AD and composting bacterial changes were driven by functional traits selected by physicochemical factors such as temperature and chemical pollutants.
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Affiliation(s)
- Axel Aigle
- Univ Lyon, UMR Ecologie Microbienne (LEM), Université Claude Bernard Lyon 1, CNRS 5557, INRAE 1418, VetAgro Sup, Marcy L'Etoile, France
| | - Emilie Bourgeois
- Univ Lyon, UMR Ecologie Microbienne (LEM), Université Claude Bernard Lyon 1, CNRS 5557, INRAE 1418, VetAgro Sup, Marcy L'Etoile, France
| | - Laurence Marjolet
- Univ Lyon, UMR Ecologie Microbienne (LEM), Université Claude Bernard Lyon 1, CNRS 5557, INRAE 1418, VetAgro Sup, Marcy L'Etoile, France
| | - Sabine Houot
- UMR ECOSYS, INRAE, AgroParisTech, Thiverval-Grignon, France
| | | | - Emmanuel Doelsch
- CIRAD, UPR Recyclage et risque, Montpellier, France.,Recyclage et Risque, Univ Montpellier, CIRAD, Montpellier, France
| | - Benoit Cournoyer
- Univ Lyon, UMR Ecologie Microbienne (LEM), Université Claude Bernard Lyon 1, CNRS 5557, INRAE 1418, VetAgro Sup, Marcy L'Etoile, France
| | - Wessam Galia
- Univ Lyon, UMR Ecologie Microbienne (LEM), Université Claude Bernard Lyon 1, CNRS 5557, INRAE 1418, VetAgro Sup, Marcy L'Etoile, France
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16
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Wang B, Ma J, Zhang L, Su Y, Xie Y, Ahmad Z, Xie B. The synergistic strategy and microbial ecology of the anaerobic co-digestion of food waste under the regulation of domestic garbage classification in China. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 765:144632. [PMID: 33412377 DOI: 10.1016/j.scitotenv.2020.144632] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Revised: 12/12/2020] [Accepted: 12/14/2020] [Indexed: 06/12/2023]
Abstract
With the implementation of new domestic garbage classification policy in China, attention is growing to improve the treatment efficiency of municipal 'wet' waste. Combing with the new regulation, the synergistic strategy and the microbial ecology of the anaerobic co-digestion (AcoD) of cooked food waste (CFW), uncooked food waste (UCFW) and rice straw (RS) were analyzed in current study. Results showed that the maximum cumulative methane yield (CMY) and synergic index were obtained when CFW and UCFW were mixed at the ratio of 1:1 (based on volatile solid content). The highest CMY 452.94 ± 0.99 mL/g-VS was obtained when the ratio of CFW, UCFW and RS was 0.81:0.09:0.10, which was 16.29%, 36.20% and 121.84% higher than their mono-digestion, respectively. The AcoD promoted the methane potential by prolonging the release time of organic matter and slowing down the hydrolysis rate. Furthermore, the AcoD increased the species diversification and relative abundance of fermentation bacteria in digesters, and Methanosaeta predominated the methanogen communities. This study demonstrated a clean and sustainable AcoD strategy for safe disposal of urban food waste and revealed the variation of microbial community, which can provide a base for efficient bioenergy recovery from urban domestic garbage.
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Affiliation(s)
- Binghan Wang
- Shanghai Engineering Research Center of Biotransformation of Organic Solid Waste, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China; Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, School of Ecological and Environmental Science, East China Normal University, Shanghai 200241, China
| | - Jiaying Ma
- Shanghai Engineering Research Center of Biotransformation of Organic Solid Waste, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China; Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, School of Ecological and Environmental Science, East China Normal University, Shanghai 200241, China
| | - Liangmao Zhang
- Shanghai Engineering Research Center of Biotransformation of Organic Solid Waste, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China; Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, School of Ecological and Environmental Science, East China Normal University, Shanghai 200241, China
| | - Yinglong Su
- Shanghai Engineering Research Center of Biotransformation of Organic Solid Waste, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China; Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, School of Ecological and Environmental Science, East China Normal University, Shanghai 200241, China
| | - Yiqi Xie
- Department of Plant Science, McGill University, Macdonald Campus, 21111 Lakeshore Road, Sainte-Anne-de-Bellevue, QC H9X 3V9, Canada
| | - Zahoor Ahmad
- Shanghai Engineering Research Center of Biotransformation of Organic Solid Waste, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China; Department of Soil Science, The University of Haripur, Haripur, Khyber Pakhtunkhwa, Pakistan
| | - Bing Xie
- Shanghai Engineering Research Center of Biotransformation of Organic Solid Waste, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China; Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, School of Ecological and Environmental Science, East China Normal University, Shanghai 200241, China.
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17
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Pulami D, Schauss T, Eisenberg T, Wilharm G, Blom J, Goesmann A, Kämpfer P, Glaeser SP. Acinetobacter baumannii in manure and anaerobic digestates of German biogas plants. FEMS Microbiol Ecol 2021; 96:5896450. [PMID: 32832994 DOI: 10.1093/femsec/fiaa176] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2020] [Accepted: 08/20/2020] [Indexed: 12/19/2022] Open
Abstract
Studies considering environmental multidrug-resistant Acinetobacter spp. are scarce. The application of manure on agricultural fields is one source of multidrug-resistant bacteria from livestock into the environment. Here, Acinetobacter spp. were quantified by quantitative polymerase chain reaction in manure applied to biogas plants and in the output of the anaerobic digestion, and Acinetobacter spp. isolated from those samples were comprehensively characterized. The concentration of Acinetobacter 16S ribosomal ribonucleic acid (rRNA) gene copies per g fresh weight was in range of 106-108 in manure and decreased (partially significantly) to a still high concentration (105-106) in digestates. 16S rRNA, gyrB-rpoB and blaOXA51-like gene sequencing identified 17 different Acinetobacter spp., including six A. baumannii strains. Multilocus sequence typing showed no close relation of the six strains with globally relevant clonal complexes; however, they represented five novel sequence types. Comparative genomics and physiological tests gave an explanation how Acinetobacter could survive the anaerobic biogas process and indicated copper resistance and the presence of intrinsic beta-lactamases, efflux-pump and virulence genes. However, the A. baumannii strains lacked acquired resistance against carbapenems, colistin and quinolones. This study provided a detailed characterization of Acinetobacter spp. including A. baumannii released via manure through mesophilic or thermophilic biogas plants into the environment.
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Affiliation(s)
- Dipen Pulami
- Institute of Applied Microbiology, Justus Liebig University Giessen, D-35392 Giessen, Germany
| | - Thorsten Schauss
- Institute of Applied Microbiology, Justus Liebig University Giessen, D-35392 Giessen, Germany
| | - Tobias Eisenberg
- Department of Veterinary Medicine, Hessian State Laboratory (LHL), D-35392 Giessen, Germany; Institute of Hygiene and Infectious Diseases of Animals, Justus-Liebig-University Giessen, D-35392, Giessen, Germany
| | - Gottfried Wilharm
- Project Group P2, Robert Koch Institute, Wernigerode Branch, D-38855 Wernigerode, Germany
| | - Jochen Blom
- Institute for Bioinformatics and Systems Biology, D-35392 Giessen, Germany
| | - Alexander Goesmann
- Institute for Bioinformatics and Systems Biology, D-35392 Giessen, Germany
| | - Peter Kämpfer
- Institute of Applied Microbiology, Justus Liebig University Giessen, D-35392 Giessen, Germany
| | - Stefanie P Glaeser
- Institute of Applied Microbiology, Justus Liebig University Giessen, D-35392 Giessen, Germany
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18
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Pulami D, Schauss T, Eisenberg T, Blom J, Schwengers O, Bender JK, Wilharm G, Kämpfer P, Glaeser SP. Acinetobacter stercoris sp. nov. isolated from output source of a mesophilic german biogas plant with anaerobic operating conditions. Antonie van Leeuwenhoek 2021; 114:235-251. [PMID: 33591460 PMCID: PMC7902594 DOI: 10.1007/s10482-021-01517-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/22/2020] [Accepted: 01/13/2021] [Indexed: 01/21/2023]
Abstract
The Gram-stain-negative, oxidase negative, catalase positive strain KPC-SM-21T, isolated from a digestate of a storage tank of a mesophilic German biogas plant, was investigated by a polyphasic taxonomic approach. Phylogenetic identification based on the nearly full-length 16S rRNA gene revealed highest gene sequence similarity to Acinetobacter baumannii ATCC 19606T (97.0%). Phylogenetic trees calculated based on partial rpoB and gyrB gene sequences showed a distinct clustering of strain KPC-SM-21T with Acinetobacter gerneri DSM 14967T = CIP 107464T and not with A. baumannii, which was also supported in the five housekeeping genes multilocus sequence analysis based phylogeny. Average nucleotide identity values between whole genome sequences of strain KPC-SM-21T and next related type strains supported the novel species status. The DNA G + C content of strain KPC-SM-21T was 37.7 mol%. Whole-cell MALDI-TOF MS analysis supported the distinctness of the strain to type strains of next related Acinetobacter species. Predominant fatty acids were C18:1 ω9c (44.2%), C16:0 (21.7%) and a summed feature comprising C16:1 ω7c and/or iso-C15:0 2-OH (15.3%). Based on the obtained genotypic, phenotypic and chemotaxonomic data we concluded that strain KPC-SM-21T represents a novel species of the genus Acinetobacter, for which the name Acinetobacter stercoris sp. nov. is proposed. The type strain is KPC-SM-21T (= DSM 102168T = LMG 29413T).
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Affiliation(s)
- Dipen Pulami
- Institut für Angewandte Mikrobiologie, Justus-Liebig-Universität Giessen, 35392, Giessen, Germany
| | - Thorsten Schauss
- Institut für Angewandte Mikrobiologie, Justus-Liebig-Universität Giessen, 35392, Giessen, Germany
| | - Tobias Eisenberg
- Department of Veterinary Medicine, Hessian State Laboratory, Giessen, Germany
| | - Jochen Blom
- Institute for Bioinformatics and Systems Biology, Giessen, 35392, Giessen, Germany
| | - Oliver Schwengers
- Institute for Bioinformatics and Systems Biology, Giessen, 35392, Giessen, Germany
| | - Jennifer K Bender
- Division of Nosocomial Pathogens and Antibiotic Resistances, Wernigerode Branch, Robert Koch Institute, 38855, Wernigerode, Germany
| | - Gottfried Wilharm
- Project group P2, Wernigerode Branch, Robert Koch Institute, 38855, Wernigerode, Germany
| | - Peter Kämpfer
- Institut für Angewandte Mikrobiologie, Justus-Liebig-Universität Giessen, 35392, Giessen, Germany
| | - Stefanie P Glaeser
- Institut für Angewandte Mikrobiologie, Justus-Liebig-Universität Giessen, 35392, Giessen, Germany.
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19
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Wongfaed N, Kongjan P, Suksong W, Prasertsan P, O-Thong S. Strategies for recovery of imbalanced full-scale biogas reactor feeding with palm oil mill effluent. PeerJ 2021; 9:e10592. [PMID: 33505799 PMCID: PMC7797170 DOI: 10.7717/peerj.10592] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Accepted: 11/26/2020] [Indexed: 11/24/2022] Open
Abstract
Background Full-scale biogas production from palm oil mill effluent (POME) was inhibited by low pH and highly volatile fatty acid (VFA) accumulation. Three strategies were investigated for recovering the anaerobic digestion (AD) imbalance on biogas production, namely the dilution method (tap water vs. biogas effluent), pH adjustment method (NaOH, NaHCO3, Ca(OH)2, oil palm ash), and bioaugmentation (active methane-producing sludge) method. The highly economical and feasible method was selected and validated in a full-scale application. Results The inhibited sludge from a full-scale biogas reactor could be recovered within 30–36 days by employing various strategies. Dilution of the inhibited sludge with biogas effluent at a ratio of 8:2, pH adjustment with 0.14% w/v NaOH, and 8.0% w/v oil palm ash were considered to be more economically feasible than other strategies tested (dilution with tap water, or pH adjustment with 0.50% w/v Ca(OH)2, or 1.25% NaHCO3 and bioaugmentation) with a recovery time of 30–36 days. The recovered biogas reactor exhibited a 35–83% higher methane yield than self-recovery, with a significantly increased hydrolysis constant (kH) and specific methanogenic activity (SMA). The population of Clostridium sp., Bacillus sp., and Methanosarcina sp. increased in the recovered sludge. The imbalanced full-scale hybrid cover lagoon reactor was recovered within 15 days by dilution with biogas effluent at a ratio of 8:2 and a better result than the lab-scale test (36 days). Conclusion Dilution of the inhibited sludge with biogas effluent could recover the imbalance of the full-scale POME-biogas reactor with economically feasible and high biogas production performance.
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Affiliation(s)
- Nantharat Wongfaed
- Biotechnology Program, Faculty of Science, Thaksin University, Phatthalung, Thailand
| | - Prawit Kongjan
- Department of Science, Faculty of Science and Technology, Prince of Songkla University, Pattani, Thailand
| | - Wantanasak Suksong
- School of Bioresources and Technology, King Mongkut's University of Technology, Thonburi, Bangkok, Thailand
| | - Poonsuk Prasertsan
- Research and Development Office, Prince of Songkla University, Songkhla, Thailand
| | - Sompong O-Thong
- Biotechnology Program, Faculty of Science, Thaksin University, Phatthalung, Thailand.,International College, Thaksin University, Songkhla, Thailand
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20
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Mahmudul HM, Rasul MG, Akbar D, Narayanan R, Mofijur M. A comprehensive review of the recent development and challenges of a solar-assisted biodigester system. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 753:141920. [PMID: 32889316 DOI: 10.1016/j.scitotenv.2020.141920] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 08/20/2020] [Accepted: 08/22/2020] [Indexed: 06/11/2023]
Abstract
The extensive use of fossil fuels and the environmental effect of their combustion products have attracted researchers to look into renewable energy sources. In addition, global mass production of waste has motivated communities to recycle and reuse the waste in a sustainable way to lower landfill waste and associated problems. The development of waste to energy (WtE) technology including the production of bioenergy, e.g. biogas produced from various waste through Anaerobic Digestion (AD), is considered one of the potential measures to achieve the sustainable development goals of the United Nations (UN). Therefore, this study reviews the most recent studies from relevant academic literature on WtE technology (particularly AD technology) for biogas production and the application of a solar-assisted biodigester (SAB) system aimed at improving performance. In addition, socio-economic factors, challenges, and perspectives have been reported. From the analysis of different technologies, further work on effective low-cost technologies is recommended, especially using SAB system upgrading and leveraging the opportunities of this system. The study found that the performance of the AD system is affected by a variety of factors and that different approaches can be applied to improve performance. It has also been found that solar energy systems efficiently raise the biogas digester temperature and through this, they maximize the biogas yield under optimum conditions. The study revealed that the solar-assisted AD system produces less pollution and improves performance compared to the conventional AD system.
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Affiliation(s)
- H M Mahmudul
- School of Engineering and Technology, Central Queensland University, QLD 4701, Australia; Clean Energy Academy, Central Queensland University, QLD 4701, Australia.
| | - M G Rasul
- School of Engineering and Technology, Central Queensland University, QLD 4701, Australia; Clean Energy Academy, Central Queensland University, QLD 4701, Australia
| | - D Akbar
- School of Business and Law, Central Queensland University, QLD 4701, Australia
| | - R Narayanan
- School of Engineering and Technology, Central Queensland University, QLD 4701, Australia; Clean Energy Academy, Central Queensland University, QLD 4701, Australia
| | - M Mofijur
- School of Information, Systems and Modelling, University of Technology Sydney, NSW 2007, Australia; Mechanical Engineering Department, Prince Mohammad Bin Fahd University, Al Khobar 31952, Saudi Arabia
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21
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Zhu K, Zhang L, Wang X, Mu L, Li C, Li A. Inhibition of norfloxacin on anaerobic digestion: Focusing on the recoverability and shifted microbial communities. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 752:141733. [PMID: 32896787 DOI: 10.1016/j.scitotenv.2020.141733] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Revised: 08/13/2020] [Accepted: 08/14/2020] [Indexed: 05/23/2023]
Abstract
Antibacterial properties of norfloxacin (NOR) could cause adverse impact on engineered biological process. In this study, the objective was to investigate the inhibitory effects of NOR on anaerobic digestion focusing on the recoverability and microbial community changes. The effects of different concentrations of NOR on anaerobic digestion were studied with three continuous feed cycles. Results showed that NOR seriously inhibited the methane production with an 50% inhibitory concentration (IC50) of 0.41 mM. In addition, with extending of exposure time, inhibitory effect increasingly strengthened and the IC50 values decreased to 0.16 mM and 0.07 mM in the second and third feeding cycle, respectively. However, when the inhibitor in supernatant was removed, the performance recovered and the relative methane yield increased by 9 times from 25.38 mL/g VS to 257.05 mL/g VS. The transformation of NOR showed that the degradation of NOR in the anaerobic digestion was difficult and the recovery was due to the removal of NOR. The microbial analysis revealed that the inhibition of NOR on bacteria of Candidatus_Cloacimonas, Petrimonas, Ercella, Sphaerochaeta and hydrogenotrophic methanogens of Methanoculleus and Methanobacterium was recoverable when NOR was removed. However, it was irreversible for acetoclastic methanogen of Methanosaeta. These findings provided comprehensive understanding on the characteristics of NOR inhibition and also provided feasible strategy to recover the NOR inhibited anaerobic digestion.
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Affiliation(s)
- Kongyun Zhu
- Key Laboratory of Industrial Ecology and Environmental Engineering, School of Environmental Science and Technology, Dalian University of Technology, Linggong Road 2, Dalian 116024, PR China
| | - Lei Zhang
- Key Laboratory of Industrial Ecology and Environmental Engineering, School of Environmental Science and Technology, Dalian University of Technology, Linggong Road 2, Dalian 116024, PR China.
| | - Xuexue Wang
- Key Laboratory of Industrial Ecology and Environmental Engineering, School of Environmental Science and Technology, Dalian University of Technology, Linggong Road 2, Dalian 116024, PR China
| | - Lan Mu
- Key Laboratory of Industrial Ecology and Environmental Engineering, School of Environmental Science and Technology, Dalian University of Technology, Linggong Road 2, Dalian 116024, PR China
| | - Changjing Li
- Key Laboratory of Industrial Ecology and Environmental Engineering, School of Environmental Science and Technology, Dalian University of Technology, Linggong Road 2, Dalian 116024, PR China
| | - Aimin Li
- Key Laboratory of Industrial Ecology and Environmental Engineering, School of Environmental Science and Technology, Dalian University of Technology, Linggong Road 2, Dalian 116024, PR China
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22
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Iglesias-Iglesias R, Kennes C, Veiga MC. Valorization of sewage sludge in co-digestion with cheese whey to produce volatile fatty acids. WASTE MANAGEMENT (NEW YORK, N.Y.) 2020; 118:541-551. [PMID: 32980733 DOI: 10.1016/j.wasman.2020.09.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Revised: 08/31/2020] [Accepted: 09/01/2020] [Indexed: 06/11/2023]
Abstract
The present work explored the production of volatile fatty acids through the anaerobic co-digestion of sewage sludge (SS) and cheese whey (CW). Two batch experiments were conducted to evaluate the effect of the substrate mixing ratio (SS%:CW% of total COD of feedstock) and the initial pH on the acidogenic fermentation of SS with CW at different temperatures. The first batch experiment showed that a decrease of the SS proportion in the co-digestion with CW led to a higher degree of acidification observing a synergistic effect at a SS:CW mixing ratio of 25:75 (SS25:CW75). In the second batch experiment, three temperatures (30 °C, 38 °C and 50 °C) and two initial pH (5.5 and 9) were studied at SS60:CW40 and SS25:CW75 substrate mixing ratios. Maximum degrees of acidification of 56% and 73% were achieved, at 50 °C and initial pH of 5.5, for the SS60:CW40 and SS25:CW75 substrate mixing ratios, respectively. Finally, the performance of a semi-continuous reactor was demonstrated at laboratory scale reactor. Different hydraulic retention times (HRT) (10 and 20 days), pH (uncontrolled, 5.5 and 9) and the effect of a thermal pre-treatment of the SS was studied. The maximum degree of acidification in the lab-scale reactor was 45% at 37 °C, HRT of 20 days and pH of 5.5. Under these conditions, the volatile fatty acids (VFA) profile was dominated by butyric and acetic acids.
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Affiliation(s)
- Ruth Iglesias-Iglesias
- Laboratory of Chemical Engineering, Faculty of Sciences and Centre for Advanced Scientific Research (CICA), University of A Coruña, A Coruña 15008, Spain
| | - Christian Kennes
- Laboratory of Chemical Engineering, Faculty of Sciences and Centre for Advanced Scientific Research (CICA), University of A Coruña, A Coruña 15008, Spain
| | - María C Veiga
- Laboratory of Chemical Engineering, Faculty of Sciences and Centre for Advanced Scientific Research (CICA), University of A Coruña, A Coruña 15008, Spain.
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23
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Kanger K, Guilford NGH, Lee H, Nesbø CL, Truu J, Edwards EA. Antibiotic resistome and microbial community structure during anaerobic co-digestion of food waste, paper and cardboard. FEMS Microbiol Ecol 2020; 96:5700280. [PMID: 31922542 DOI: 10.1093/femsec/fiaa006] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Accepted: 01/09/2020] [Indexed: 11/13/2022] Open
Abstract
Solid organic waste is a significant source of antibiotic resistance genes (ARGs) and effective treatment strategies are urgently required to limit the spread of antimicrobial resistance. Here, we studied ARG diversity and abundance as well as the relationship between antibiotic resistome and microbial community structure within a lab-scale solid-state anaerobic digester treating a mixture of food waste, paper and cardboard. A total of 10 samples from digester feed and digestion products were collected for microbial community analysis including small subunit rRNA gene sequencing, total community metagenome sequencing and high-throughput quantitative PCR. We observed a significant shift in microbial community composition and a reduction in ARG diversity and abundance after 6 weeks of digestion. ARGs were identified in all samples with multidrug resistance being the most abundant ARG type. Thirty-two per cent of ARGs detected in digester feed were located on plasmids indicating potential for horizontal gene transfer. Using metagenomic assembly and binning, we detected potential bacterial hosts of ARGs in digester feed, which included Erwinia, Bifidobacteriaceae, Lactococcus lactis and Lactobacillus. Our results indicate that the process of sequential solid-state anaerobic digestion of food waste, paper and cardboard tested herein provides a significant reduction in the relative abundance of ARGs per 16S rRNA gene.
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Affiliation(s)
- Kärt Kanger
- Faculty of Science and Technology, University of Tartu, Vanemuise 46, 51003 Tartu, Estonia
| | - Nigel G H Guilford
- BioZone Centre for Applied Biosciences and Bioengineering, Department of Chemical Engineering and Applied Chemistry, University of Toronto, 200 College Street, Toronto, ON M5S 3E5, Canada
| | - HyunWoo Lee
- BioZone Centre for Applied Biosciences and Bioengineering, Department of Chemical Engineering and Applied Chemistry, University of Toronto, 200 College Street, Toronto, ON M5S 3E5, Canada
| | - Camilla L Nesbø
- BioZone Centre for Applied Biosciences and Bioengineering, Department of Chemical Engineering and Applied Chemistry, University of Toronto, 200 College Street, Toronto, ON M5S 3E5, Canada.,Department of Biological Sciences, University of Alberta, 11455 Saskatchewan Drive, Edmonton, AB T6G 2E9, Canada
| | - Jaak Truu
- Faculty of Science and Technology, University of Tartu, Vanemuise 46, 51003 Tartu, Estonia
| | - Elizabeth A Edwards
- BioZone Centre for Applied Biosciences and Bioengineering, Department of Chemical Engineering and Applied Chemistry, University of Toronto, 200 College Street, Toronto, ON M5S 3E5, Canada
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24
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Zhang W, Dai X, Dong B, Dai L. New insights into the effect of sludge proteins on the hydrophilic/hydrophobic properties that improve sludge dewaterability during anaerobic digestion. WATER RESEARCH 2020; 173:115503. [PMID: 32035278 DOI: 10.1016/j.watres.2020.115503] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Revised: 01/09/2020] [Accepted: 01/11/2020] [Indexed: 06/10/2023]
Abstract
Extracellular polymer proteins have been reported to play an important role in enhancing sludge dewaterability during anaerobic digestion in our previous study. However, how the proteins in sludge determine sludge dewaterability remains to be determined. In this work, proteins from digested sludge were identified using label free proteomics analysis, and its hydrophilicity/hydrophobicity properties and functional groups were analysed. We determined that the microbial community variation between the three stages during the anaerobic digestion process was responsible for enhancing sludge dewaterability; The transformation from hydrophilicity to hydrophobicity of digested sludge surface is the result of functional groups distribution variation which caused by the proteins and microbial communities. This study provides a new insight into the development of anaerobic digestion based on sludge dewaterability.
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Affiliation(s)
- Wei Zhang
- School of Environmental Science and Engineering. Tongji University, Shanghai, 200092, PR China
| | - Xiaohu Dai
- School of Environmental Science and Engineering. Tongji University, Shanghai, 200092, PR China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai, 200092, PR China.
| | - Bin Dong
- School of Environmental Science and Engineering. Tongji University, Shanghai, 200092, PR China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai, 200092, PR China
| | - Lingling Dai
- School of Environmental Science and Engineering. Tongji University, Shanghai, 200092, PR China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai, 200092, PR China
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25
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Mu L, Zhang L, Zhu K, Ma J, Ifran M, Li A. Anaerobic co-digestion of sewage sludge, food waste and yard waste: Synergistic enhancement on process stability and biogas production. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 704:135429. [PMID: 31837868 DOI: 10.1016/j.scitotenv.2019.135429] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Revised: 10/20/2019] [Accepted: 11/06/2019] [Indexed: 06/10/2023]
Abstract
Anaerobic co-digestion (co-AD) could be a more sustainable waste management solution by sharing the existed anaerobic digestion (AD) facilities and generating more biogas energy. In this study, a series of co-AD of different urban derived organic wastes (sewage sludge-SS, food waste-FW, yard waste-YW) were conducted in a semi-continuous mode, and the corresponding dynamic evolutions of microbial community structure were followed by using real-time quantitative polymerase chain reaction (qPCR). As for co-AD of two feedstocks, introduction of SS (25%, VS basis) in FW significantly improved the process stability and archaea/total microbe ratio (from 0.4% to 17.1%), which might be due to the regulating effect of abundant trace metals in SS; co-AD of SS (25%, VS basis) with YW improved the methane yield by 2.04 times than AD of YW only together with higher methane contents (57.4 ± 1.3% vs. 50.9 ± 2.2%); in co-AD of FW and YW, synergistic effects in terms of increased methane production (3.4-19.1%) were observed, which was correlated with more robust growth of both bacteria and archaea. As for co-AD of three feedstocks, high methane yields of 314.9 ± 17.1 mL/g VS were achieved with a reliable stability. These findings could provide some fundamental and technical information for the co-treatment of urban derived organic wastes in centralized AD facilities.
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Affiliation(s)
- Lan Mu
- Key Laboratory of Industrial Ecology and Environmental Engineering, School of Environmental Science and Technology, Dalian University of Technology, Linggong Road 2, Dalian 116024, PR China
| | - Lei Zhang
- Key Laboratory of Industrial Ecology and Environmental Engineering, School of Environmental Science and Technology, Dalian University of Technology, Linggong Road 2, Dalian 116024, PR China.
| | - Kongyun Zhu
- Key Laboratory of Industrial Ecology and Environmental Engineering, School of Environmental Science and Technology, Dalian University of Technology, Linggong Road 2, Dalian 116024, PR China
| | - Jiao Ma
- Key Laboratory of Industrial Ecology and Environmental Engineering, School of Environmental Science and Technology, Dalian University of Technology, Linggong Road 2, Dalian 116024, PR China
| | - Muhammad Ifran
- Key Laboratory of Industrial Ecology and Environmental Engineering, School of Environmental Science and Technology, Dalian University of Technology, Linggong Road 2, Dalian 116024, PR China
| | - Aimin Li
- Key Laboratory of Industrial Ecology and Environmental Engineering, School of Environmental Science and Technology, Dalian University of Technology, Linggong Road 2, Dalian 116024, PR China
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26
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Meena RAA, Rajesh Banu J, Yukesh Kannah R, Yogalakshmi KN, Kumar G. Biohythane production from food processing wastes - Challenges and perspectives. BIORESOURCE TECHNOLOGY 2020; 298:122449. [PMID: 31784253 DOI: 10.1016/j.biortech.2019.122449] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 11/16/2019] [Accepted: 11/18/2019] [Indexed: 06/10/2023]
Abstract
The food industry generates enormous quantity of food waste (FW) either directly or indirectly including the processing sector, which turned into biofuels for waste remediation. Six types of food processing wastes (FPW) such as oil, fruit and vegetable, dairy, brewery, livestock and finally agriculture based materials that get treated via dark fermentation/anaerobic digestion has been discussed. Production of both hydrogen and methane is daunting for oil, fruit and vegetable processing wastes because of the presence of polyphenols and essential oils. Moreover, acidic pH and high protein are the reasons for increased concentration of ammonia and accumulation of volatile fatty acids in FPW, especially in dairy, brewery, and livestock waste streams. Moreover, the review brought to forefront the enhancing methods, (pretreatment and co-digestion) operational, and environmental parameters that can influence the production of biohythane. Finally, the nature of feedstock's role in achieving successful circular bio economy is also highlighted.
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Affiliation(s)
| | - J Rajesh Banu
- Department of Civil Engineering, Anna University Regional Campus Tirunelveli, India
| | - R Yukesh Kannah
- Department of Civil Engineering, Anna University Regional Campus Tirunelveli, India
| | - K N Yogalakshmi
- Department of Environmental Science and Technology, School of Environment and Earth Sciences, Central University of Punjab, Bathinda 151001, Punjab, India
| | - Gopalakrishnan Kumar
- Green Processing, Bioremediation and Alternative Energies Research Group, Faculty of Environment and Labour Safety, Ton Duc Thang University, Ho Chi Minh City, Viet Nam.
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27
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Ghosh P, Kumar M, Kapoor R, Kumar SS, Singh L, Vijay V, Vijay VK, Kumar V, Thakur IS. Enhanced biogas production from municipal solid waste via co-digestion with sewage sludge and metabolic pathway analysis. BIORESOURCE TECHNOLOGY 2020; 296:122275. [PMID: 31683109 DOI: 10.1016/j.biortech.2019.122275] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Revised: 10/09/2019] [Accepted: 10/15/2019] [Indexed: 06/10/2023]
Abstract
The present study intends to evaluate the potential of co-digestion for utilizing Organic fraction of Municipal Solid Waste (OFMSW) and sewage sludge (SS) for enhanced biogas production. Metagenomic analysis was performed to identify the dominant bacteria, archaea and fungi, changes in their communities with time and their functional roles during the course of anaerobic digestion (AD). The cumulative biogas yield of 586.2 mL biogas/gVS with the highest methane concentration of 69.5% was observed under an optimum ratio of OFMSW:SS (40:60 w/w). Bacteria and fungi were found to be majorly involved in hydrolysis and initial stages of AD. Probably, the most common archaea Methanosarsina sp. primarily followed the acetoclastic pathway. The hydrogenotrophic pathway was less followed as indicated by the reduction in abundance of syntrophic acetate oxidizers. An adequate understanding of microbial communities is important to manipulate and inoculate the specific microbial consortia to maximize CH4 production through AD.
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Affiliation(s)
- Pooja Ghosh
- Centre for Rural Development and Technology, Indian Institute of Technology, New Delhi 110016, India.
| | - Madan Kumar
- Centre for Rural Development and Technology, Indian Institute of Technology, New Delhi 110016, India
| | - Rimika Kapoor
- Centre for Rural Development and Technology, Indian Institute of Technology, New Delhi 110016, India
| | - Smita S Kumar
- Centre for Rural Development and Technology, Indian Institute of Technology, New Delhi 110016, India
| | - Lakhveer Singh
- Faculty of Civil and Environmental Engineering, University Malaysia Pahang, Kuantan 26300, Malaysia
| | - Vandit Vijay
- Centre for Rural Development and Technology, Indian Institute of Technology, New Delhi 110016, India
| | - Virendra Kumar Vijay
- Centre for Rural Development and Technology, Indian Institute of Technology, New Delhi 110016, India
| | - Vivek Kumar
- Centre for Rural Development and Technology, Indian Institute of Technology, New Delhi 110016, India
| | - Indu Shekhar Thakur
- School of Environmental Sciences, Jawaharlal Nehru University, New Delhi 110067, India
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28
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Iglesias-Iglesias R, Campanaro S, Treu L, Kennes C, Veiga MC. Valorization of sewage sludge for volatile fatty acids production and role of microbiome on acidogenic fermentation. BIORESOURCE TECHNOLOGY 2019; 291:121817. [PMID: 31374412 DOI: 10.1016/j.biortech.2019.121817] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Revised: 07/12/2019] [Accepted: 07/15/2019] [Indexed: 06/10/2023]
Abstract
This work explored the production of volatile fatty acids (VFA) through the anaerobic digestion of sewage sludge (SS). The first experiment took place at batch scale to evaluate the combined effect of using a thermal pre-treatment (120 °C, 15 min) and different Substrate/Inoculum ratios (S/I) (1, 2, 4 and 6 g VS substrate/g VS inoculum) on the acidogenic potential of the SS. The results showed that the thermal pre-treatment influenced positively the degree of acidification of the SS at low S/I ratios, reaching maximum of 45%. Afterwards, a continuous lab-scale experiment, was set-up to study two ranges of organic loading rates (OLR): 1300-1600 mg COD L-1 d-1 and 2400-3500 mg COD L-1 d-1. The highest degree of acidification (22%) was achieved at the lowest OLR. Analysis of the microbial community in the reactor revealed that OTUs most abundant present genes related with amino acids and carbohydrates fermentation being crucial for VFA production.
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Affiliation(s)
- Ruth Iglesias-Iglesias
- Chemical Engineering Laboratory, Faculty of Sciences and Centre for Advanced Scientific Research (CICA), University of Coruña, Rua da Fraga 10, E - 15008 A Coruña, Spain
| | - Stefano Campanaro
- Department of Biology, University of Padova, Via U. Bassi 58/b, Padova 35131, Italy; CRIBI Biotechnology Center, University of Padova, Viale G. Colombo 3, Padova 35131, Italy
| | - Laura Treu
- Department of Biology, University of Padova, Via U. Bassi 58/b, Padova 35131, Italy
| | - Christian Kennes
- Chemical Engineering Laboratory, Faculty of Sciences and Centre for Advanced Scientific Research (CICA), University of Coruña, Rua da Fraga 10, E - 15008 A Coruña, Spain
| | - Maria C Veiga
- Chemical Engineering Laboratory, Faculty of Sciences and Centre for Advanced Scientific Research (CICA), University of Coruña, Rua da Fraga 10, E - 15008 A Coruña, Spain.
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29
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Shi X, Zuo J, Zhang M, Wang Y, Yu H, Li B. Enhanced biogas production and in situ ammonia recovery from food waste using a gas-membrane absorption anaerobic reactor. BIORESOURCE TECHNOLOGY 2019; 292:121864. [PMID: 31394467 DOI: 10.1016/j.biortech.2019.121864] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Revised: 07/18/2019] [Accepted: 07/19/2019] [Indexed: 06/10/2023]
Abstract
A novel GAs-Membrane Absorption anaerobic Reactor (GAMAR) was developed by combining gas-membrane absorption system with anaerobic digestion. A gas-permeable expanded polytetrafluoroethylene (ePTFE) membrane was submerged in the anaerobic reactor. Free ammonia could transfer through the gas-permeable membrane and be recovered by acidic solution. The free ammonia concentration was lower than 40 mgN L-1 in GAMAR, which alleviated ammonia inhibition. Meanwhile free ammonia concentration up 70 mgN L-1 in the reference reactor inhibited methanogens and led to unstable operation. The volumetric biogas production rate of GAMAR was 2.83 m3 m-3 d-1, and 58% higher than the reference reactor. Long term use of membrane led to membrane fouling and hydrophobicity loss. The contact angle of membrane decreased from 105.9 ± 1.2° to 97.6 ± 6.3° after 43 d. The abundance of methanogens in GAMAR was 1.8-2.1 times higher than that in the reference reactor, which was in accordance with the higher biogas production rate in GAMAR.
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Affiliation(s)
- Xuchuan Shi
- School of Environment, Tsinghua University, Beijing, China; Tsinghua-Berkeley Shenzhen Institute, Shenzhen, China; Shenzhen Engineering Research Laboratory for Sludge and Food Waste Treatment and Resource Recovery, Graduate School at Shenzhen, Tsinghua University, Shenzhen, China; Guangdong Provincial Engineering Research Centre for Urban Water Recycling and Environmental Safety, Graduate School at Shenzhen, Tsinghua University, Shenzhen, China
| | - Jiane Zuo
- School of Environment, Tsinghua University, Beijing, China.
| | - Mengyu Zhang
- China Urban Construction Design & Research Institute Co., Ltd, Beijing, China
| | - Yajiao Wang
- School of Environment, Tsinghua University, Beijing, China
| | - Heng Yu
- School of Environment, Tsinghua University, Beijing, China
| | - Bing Li
- Shenzhen Engineering Research Laboratory for Sludge and Food Waste Treatment and Resource Recovery, Graduate School at Shenzhen, Tsinghua University, Shenzhen, China; Guangdong Provincial Engineering Research Centre for Urban Water Recycling and Environmental Safety, Graduate School at Shenzhen, Tsinghua University, Shenzhen, China
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30
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Joshi P, Visvanathan C. Sustainable management practices of food waste in Asia: Technological and policy drivers. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2019; 247:538-550. [PMID: 31260920 DOI: 10.1016/j.jenvman.2019.06.079] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Revised: 06/09/2019] [Accepted: 06/15/2019] [Indexed: 06/09/2023]
Abstract
The policies and technological drivers to manage food waste in Asia have been shaped by the increasing awareness of the countries to this issue, their commitment to national and international development goals, their socio-economic constraints, and their recognition of the potency to recover nutrients and energy from food waste. The concept of reduce, reuse and recycle (the 3R principles) streamline the existing food waste management policies, and scrutinising the gaps and challenges led to a conclusion that most of the countries emphasise food waste segregation and treatment instead of prevention at source itself. Furthermore, a qualitative SWOT analysis of five prevailing treatment options led to a conclusion that animal feeding, incineration, and landfilling are unsustainable since they pose various health and environmental hazard risks. It was further concluded that anaerobic digestion was the preferred option than aerobic digestion (composting) considering the characteristics of the available food waste in Asia as well as the underlying environmental and economic benefits. Moreover, decentralised, community-scale, anaerobic digestion system has been gaining traction over centralised, large-scale system because of their lower energy footprint, ease of operation, need for lesser resources, lower operation and maintenance costs, and higher chances of public acceptance. It was also observed that the policy to gain energy from segregated food waste is a larger driving force for the efforts to promote anaerobic digestion and thereby manage food waste sustainably.
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Affiliation(s)
- Prabhat Joshi
- Department of Energy, Environment and Climate Change, School of Environment, Resources and Development, Asian Institute of Technology, P.O. Box 4, Khlong Luang, Pathumthani, 12120, Thailand
| | - Chettiyappan Visvanathan
- Department of Energy, Environment and Climate Change, School of Environment, Resources and Development, Asian Institute of Technology, P.O. Box 4, Khlong Luang, Pathumthani, 12120, Thailand.
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31
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Kim M, Abdulazeez M, Haroun BM, Nakhla G, Keleman M. Microbial communities in co-digestion of food wastes and wastewater biosolids. BIORESOURCE TECHNOLOGY 2019; 289:121580. [PMID: 31207413 DOI: 10.1016/j.biortech.2019.121580] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Revised: 05/25/2019] [Accepted: 05/27/2019] [Indexed: 06/09/2023]
Abstract
The effect of food waste (FW) co-digestion with wastewater biosolids (WWB) on microbial communities was investigated through running thirteen lab-scale digesters for 100 days at different operational conditions i.e. organic loading rates (2 and 4 kgCOD/m3·day), feed types (WWB and FW), and FW content (10%, 90%, 100%). Compared with mono-digestion of WWB, FW co-digestion enhanced biogas production by 13% and COD degradation rates by up to 101%. Among fermentative bacteria/acetogens, Syntrophomonas was the dominant genus in FW digesters in contrast to the dominance of Clostridium in WWB digesters. The predominant methanogen was Methanosarcina in FW digesters in contrast to Methanosaeta in WWB digesters. COD degradation rates and methane yields were well correlated with Bacteroidetes population. Methane production rate was well correlated with Clostridium for FW digesters, with syntrophs for WWB digesters, and with aceticlastic methanogens for both digesters. Synergism was associated with hydrolytic bacteria, Clostridium, Syntrophomonas, syntrophs, Methanosarcina, and Methanobacterium.
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Affiliation(s)
- Mingu Kim
- Chemical and Biochemical Engineering, University of Western Ontario, London, ON N6A 5B9, Canada
| | - Mariam Abdulazeez
- Civil and Environmental Engineering, University of Western Ontario, London, ON N6A 5B9, Canada
| | - Basem M Haroun
- Chemical and Biochemical Engineering, University of Western Ontario, London, ON N6A 5B9, Canada
| | - George Nakhla
- Chemical and Biochemical Engineering, University of Western Ontario, London, ON N6A 5B9, Canada; Civil and Environmental Engineering, University of Western Ontario, London, ON N6A 5B9, Canada.
| | - Michael Keleman
- Emerson Electric Co., 8000 West Florissant Avenue, S. Louis, MO 63136, United States
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32
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Gui X, Xu W, Cao H, Ning P, Zhang Y, Li Y, Sheng Y. A novel phenol and ammonia recovery process for coal gasification wastewater altering the bacterial community and increasing pollutants removal in anaerobic/anoxic/aerobic system. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 661:203-211. [PMID: 30669053 DOI: 10.1016/j.scitotenv.2019.01.126] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2018] [Revised: 01/11/2019] [Accepted: 01/11/2019] [Indexed: 06/09/2023]
Abstract
Coal gasification wastewater (CGWW) is a typical toxic and refractory industrial wastewater. Here, a novel phenol and ammonia recovery process (IPE) was employed for CGWW pretreatment, and the coupled system assemble by the IPE process with A2/O system (IPE-A2/O) were operated to enhance the treatment performance of CGWW. The results showed that the IPE pre-treated effluent had a higher BOD5/COD ratio and lower refractory compounds compared to a typical process (MIBK). Subsequent A2/O biological treatment indicated that the A2/O-p system (A2/O system followed IPE process) obtained a higher average COD removal of 92% compared to 87.7% of the control (A2/O-m, A2/O system followed MIBK). The GC-MS analysis suggested that the content of alkanes in the IPE-A2/O effluent was lower than that of the MIBK-A2/O. The high-throughput sequencing revealed Levilinea, Alcaligenes, Acinetobacter, Thauera and Thiobacillus were the core genera in A2/O system. The genera Alcaligenes, Acinetobacter, Thauera and Thiobacillus in the degrading consortium were enriched in the A2/O-p system, leading to increased removals of organic pollutants and TN. These results suggested that the IPE process was a feasible pretreatment method, and the coupled IPE-A2/O system was an alternative technique for treating CGWW.
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Affiliation(s)
- Xuefei Gui
- School of Chemical and Environmental Engineering, China University of Mining and Technology (Beijing), Beijing 100083, PR China; CAS Interdisciplinary Innovation Team, Chinese Academy of Sciences, Beijing 100190, PR China
| | - Weichao Xu
- School of Chemical and Environmental Engineering, China University of Mining and Technology (Beijing), Beijing 100083, PR China
| | - Hongbin Cao
- CAS Interdisciplinary Innovation Team, Chinese Academy of Sciences, Beijing 100190, PR China; National Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, PR China
| | - Pengge Ning
- CAS Interdisciplinary Innovation Team, Chinese Academy of Sciences, Beijing 100190, PR China.
| | - Yuxiu Zhang
- School of Chemical and Environmental Engineering, China University of Mining and Technology (Beijing), Beijing 100083, PR China.
| | - Yuping Li
- CAS Interdisciplinary Innovation Team, Chinese Academy of Sciences, Beijing 100190, PR China
| | - Yuxing Sheng
- CAS Interdisciplinary Innovation Team, Chinese Academy of Sciences, Beijing 100190, PR China; National Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, PR China
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Rodríguez-Abalde Á, Guivernau M, Prenafeta-Boldú FX, Flotats X, Fernández B. Characterization of microbial community dynamics during the anaerobic co-digestion of thermally pre-treated slaughterhouse wastes with glycerin addition. Bioprocess Biosyst Eng 2019; 42:1175-1184. [DOI: 10.1007/s00449-019-02115-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Revised: 02/20/2019] [Accepted: 03/25/2019] [Indexed: 11/25/2022]
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A Review on Anaerobic Co-Digestion with a Focus on the Microbial Populations and the Effect of Multi-Stage Digester Configuration. ENERGIES 2019. [DOI: 10.3390/en12061106] [Citation(s) in RCA: 98] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Recent studies have shown that anaerobic co-digestion (AnCoD) is superior to conventional anaerobic digestion (AD). The benefits of enhanced bioenergy production and solids reduction using co-substrates have attracted researchers to study the co-digestion technology and to better understand the effect of multi substrates on digester performance. This review will discuss the results of such studies with the main focus on: (1) generally the advantages of co-digestion over mono-digestion in terms of system stability, bioenergy, and solids reduction; (2) microbial consortia diversity and their synergistic impact on biogas improvement; (3) the effect of digester mode, i.e., multi-stage versus single stage digestion on AnCoD. It is essential to note that the studies reported improvement in the synergy and diverse microbial consortia when using co-digestion technologies, in addition to higher biomethane yield when using two-stage mode. A good example would be the co-digestion of biodiesel waste and glycerin with municipal waste sludge in a two-stage reactor resulting in 100% increase of biogas and 120% increase in the methane content of the produced biogas with microbial population dominated by Methanosaeta and Methanomicrobium.
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Buhlmann CH, Mickan BS, Jenkins SN, Tait S, Kahandawala TKA, Bahri PA. Ammonia stress on a resilient mesophilic anaerobic inoculum: Methane production, microbial community, and putative metabolic pathways. BIORESOURCE TECHNOLOGY 2019; 275:70-77. [PMID: 30579103 DOI: 10.1016/j.biortech.2018.12.012] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Revised: 12/03/2018] [Accepted: 12/06/2018] [Indexed: 06/09/2023]
Abstract
Short term inhibition tests, 16S rRNA tag sequencing and Phylogenetic Investigation of Communities by Reconstruction of Unobserved States (PICRUSt), were employed to visualise the effects of increasing total ammoniacal nitrogen (TAN) concentration (3400-10166 ppm TAN) on microbial community structure and metabolic pathways for acetate degradation. The rate of methane production on acetate was significantly reduced by TAN concentrations above 6133 ppm; however, methane continued to be produced, even at 10166 ppm TAN (0.026 ± 0.0003 gCOD.gVS-1inoculum.day-1). Hydrogenotrophic methanogenesis with syntrophic acetate oxidation (SAO) was identified as the dominant pathway for methane production. A shift towards SAO pathways at higher TAN concentrations and a decrease in the number of 'gene hits' for key genes in specific methanogenesis pathways was observed. Overall, the results highlighted potential for inhibition activity testing to be used together with PICRUSt, to estimate changes in microbial metabolism and to better understand microbial resilience in industrial AD facilities.
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Affiliation(s)
- Christopher H Buhlmann
- Murdoch University School of Engineering and Information Technology, Murdoch University, 90 South St, Murdoch, WA 6150, Australia.
| | - Bede S Mickan
- UWA School of Agriculture and Environment (M079), The University of Western Australia, Perth, WA 6009, Australia; The UWA Institute of Agriculture (M082), The University of Western Australia, Perth, WA 6009, Australia; Richgro Garden Products, 203 Acourt Rd, Jandakot, WA 6164, Australia
| | - Sasha N Jenkins
- UWA School of Agriculture and Environment (M079), The University of Western Australia, Perth, WA 6009, Australia; The UWA Institute of Agriculture (M082), The University of Western Australia, Perth, WA 6009, Australia
| | - Stephan Tait
- Centre for Agricultural Engineering, The University of Southern Queensland, Toowoomba, QLD 4350, Australia
| | - Tharanga K A Kahandawala
- UWA School of Agriculture and Environment (M079), The University of Western Australia, Perth, WA 6009, Australia
| | - Parisa A Bahri
- Murdoch University School of Engineering and Information Technology, Murdoch University, 90 South St, Murdoch, WA 6150, Australia
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36
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Bedoya K, Coltell O, Cabarcas F, Alzate JF. Metagenomic assessment of the microbial community and methanogenic pathways in biosolids from a municipal wastewater treatment plant in Medellín, Colombia. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 648:572-581. [PMID: 30121535 DOI: 10.1016/j.scitotenv.2018.08.119] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Revised: 08/08/2018] [Accepted: 08/08/2018] [Indexed: 06/08/2023]
Abstract
Abundance and diversity of microbial communities in biosolids are variable and poorly studied in the tropics, and it is known that rainfall is one of the events that could affect the phylogenetic and functional microbial structure. In the present study, using NGS technics, we studied the microbial diversity as well as the methanogenesis pathway in one of the largest WWTP in Colombia. Besides, we sampled and analyzed biosolids from rainy season and dry season. Phylogenetic classification showed a predominance of bacteria in both samples and difference in the dominant groups depending on the rainfall season. Whereas Pseudomonas was the dominant bacteria in the dry season, Coprothermobacter was in the rainy season. Archaea abundance was higher in the rainy season (11.5%) doubling dry season proportion. The bioreactor biogas production and total solids content showed similar results between rainy and dry season at the sampling dates. The most abundant Archaea related with methanogenesis was Methanosaeta, which is a methanogenic microorganism that exclusively uses acetate to produce methane. Moreover, annotation of the methanogenic pathway in the metagenome showed abundance in genes encoding Acetyl-CoA synthetases (ACSS), an enzyme that catalyzes acetate activation. Our results suggest that the microbial diversity was stable among the two time points tested, rainy season and dry season; and, although there were changes in the microbial abundance of dominant bacterial species, anaerobic digester performance is not affected.
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Affiliation(s)
- Katherine Bedoya
- Grupo de Parasitología, Facultad de Medicina, Universidad de Antioquia UdeA, Calle 70 No. 52-21, Medellín, Colombia; Centro Nacional de Secuenciación Genómica-CNSG, Universidad de Antioquia UdeA, Calle 70 No. 52-21, Medellín, Colombia
| | - Oscar Coltell
- Department of Computer Languages and Systems, School of Technology and Experimental Sciences, Universitat Jaume I, Castellón, Spain; CIBER Fisiopatología de la Obesidad y Nutrición, Instituto de Salud Carlos III, Madrid, Spain
| | - Felipe Cabarcas
- Centro Nacional de Secuenciación Genómica-CNSG, Universidad de Antioquia UdeA, Calle 70 No. 52-21, Medellín, Colombia; Grupo SISTEMIC, Ingeniería Electrónica, Universidad de Antioquia UdeA, Calle 70 No. 52-21, Medellín, Colombia
| | - Juan F Alzate
- Grupo de Parasitología, Facultad de Medicina, Universidad de Antioquia UdeA, Calle 70 No. 52-21, Medellín, Colombia; Centro Nacional de Secuenciación Genómica-CNSG, Universidad de Antioquia UdeA, Calle 70 No. 52-21, Medellín, Colombia.
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37
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Peña-Vargas MY, Durán-Moreno A. Influence of two types of sludge on the biogas production of assorted waste streams and the significance of beef cattle waste and liquid cheese whey in the organic fraction of municipal solid waste. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART A, TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 2019; 53:1235-1242. [PMID: 30623715 DOI: 10.1080/10934529.2018.1528037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2018] [Accepted: 05/17/2018] [Indexed: 06/09/2023]
Abstract
The aim of this study was to assess the biogas production generated by the anaerobic co-digestion of two co-substrates-liquid cheese whey (LCW) and beef cattle waste (BCW)-mixed with the organic fraction of municipal solid waste (OFMSW) and inoculated with either granular or suspended sludge. At the end of co-digestion, a high biogas yield was observed for the granular sludge mixture of OFMSW and BCW, which provides support for beef cattle waste as a promising substrate for biogas production. The mixture of OFMSW and LCW resulted in an enhancement of biogas production compared to OFMSW alone; however, the characteristics of LCW led to instability during the process. The key finding was that the type of sludge used influences the biogas production of the mixture. For the two sludges tested, the reactors containing granular sludge produced more biogas than those with suspended sludge. Reactors inoculated with a granular sludge produced 70% more biogas with the mixture of OFMSW and BCW compared to those with the suspended sludge. The OFMSW and LCW mixture with granular sludge produced 16% more biogas than with the suspended sludge.
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Affiliation(s)
- Mariela Yuvinka Peña-Vargas
- a Environmental Engineering Department, Faculty of Chemistry , Universidad Nacional Autónoma de México , Mexico City , México
| | - Alfonso Durán-Moreno
- a Environmental Engineering Department, Faculty of Chemistry , Universidad Nacional Autónoma de México , Mexico City , México
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38
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Pagliano G, Ventorino V, Panico A, Romano I, Pirozzi F, Pepe O. Anaerobic Process for Bioenergy Recovery From Dairy Waste: Meta-Analysis and Enumeration of Microbial Community Related to Intermediates Production. Front Microbiol 2019; 9:3229. [PMID: 30687248 PMCID: PMC6334743 DOI: 10.3389/fmicb.2018.03229] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Accepted: 12/12/2018] [Indexed: 11/28/2022] Open
Abstract
Dairy wastes are widely studied for the hydrogen and methane production, otherwise the changes in microbial communities related to intermediate valuable products was not deeply investigated. Culture independent techniques are useful tools for exploring microbial communities in engineered system having new insights into their structure and function as well as potential industrial application. The deep knowledge of the microbiota involved in the anaerobic process of specific waste and by-products represents an essential step to better understand the entire process and the relation of each microbial population with biochemical intermediates and final products. Therefore, this study investigated the microbial communities involved in the laboratory-scale anaerobic digestion of a mixture of mozzarella cheese whey and buttermilk amended with 5% w/v of industrial animal manure pellets. Culture-independent methods by employing high-throughput sequencing and microbial enumerations highlighted that lactic acid bacteria, such as Lactobacillaceae and Streptococcaceae dominated the beginning of the process until about day 14 when a relevant increase in hydrogen production (more than 10 ml H2 gVS-1 from days 13 to 14) was observed. Furthermore, during incubation a gradual decrease of lactic acid bacteria was detected with a simultaneous increase of Clostridia, such as Clostridiaceae and Tissierellaceae families. Moreover, archaeal populations in the biosystem were strongly related to inoculum since the non-inoculated samples of the dairy waste mixture had a relative abundance of archaea less than 0.1%; whereas, in the inoculated samples of the same mixture several archaeal genera were identified. Among methanogenic archaea, Methanoculleus was the dominant genus during all the process especially when the methane production occurred, and its relative abundance increased up to 99% at the end of the incubation time highlighting that methane was formed from dairy wastes primarily by the hydrogenotrophic pathway in the reactors.
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Affiliation(s)
- Giorgia Pagliano
- Department of Agricultural Sciences, University of Naples Federico II, Naples, Italy
| | - Valeria Ventorino
- Department of Agricultural Sciences, University of Naples Federico II, Naples, Italy.,Task Force on Microbiome Studies, University of Naples Federico II, Naples, Italy
| | | | - Ida Romano
- Department of Agricultural Sciences, University of Naples Federico II, Naples, Italy
| | - Francesco Pirozzi
- Task Force on Microbiome Studies, University of Naples Federico II, Naples, Italy.,Department of Civil, Architectural and Environmental Engineering, University of Naples Federico II, Naples, Italy
| | - Olimpia Pepe
- Department of Agricultural Sciences, University of Naples Federico II, Naples, Italy.,Task Force on Microbiome Studies, University of Naples Federico II, Naples, Italy
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39
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Duan Y, Awasthi SK, Chen H, Liu T, Zhang Z, Zhang L, Awasthi MK, Taherzadeh MJ. Evaluating the impact of bamboo biochar on the fungal community succession during chicken manure composting. BIORESOURCE TECHNOLOGY 2019; 272:308-314. [PMID: 30384205 DOI: 10.1016/j.biortech.2018.10.045] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2018] [Revised: 10/17/2018] [Accepted: 10/19/2018] [Indexed: 06/08/2023]
Abstract
The objective of this study was to investigate the fungal community succession and variations in chicken manure (CM) compost with different concentration of bamboo biochar (BB) as additive via the using of metagenomics method. The consequent obviously revealed that Chytridiomycota, Mucoromycota, Ascomycota and Basidiomycota were the dominant phylum, while Batrachochytrium, Funneliformis, Mucor, Phizophagus and Pyronema were the pre-dominant genera in each treatment. Redundancy analyses indicated that higher dosage of biochar applied treatments has significant correlation between fungal communities and environmental factors. The diversity of fungal community was analogous but the relative abundance (RA) was inconsistent among the all treatments. In addition, the principal component analysis was also confirmed that T5 and T6 treatments have considerably correlation than other treatments. However, the mean value of RA remained maximum in higher dosage of biochar blended treatments. Ultimately, the RA of different fungal genus and species were influenced in CM compost by the BB amendment.
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Affiliation(s)
- Yumin Duan
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province 712100, China
| | - Sanjeev Kumar Awasthi
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province 712100, China
| | - Hongyu Chen
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province 712100, China
| | - Tao Liu
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province 712100, China
| | - Zengqiang Zhang
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province 712100, China
| | - Linsen Zhang
- College of Horticulture, Northwest A&F University, Yangling, Shaanxi Province 712100, China
| | - Mukesh Kumar Awasthi
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province 712100, China.
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40
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Wandera SM, Westerholm M, Qiao W, Yin D, Jiang M, Dong R. The correlation of methanogenic communities' dynamics and process performance of anaerobic digestion of thermal hydrolyzed sludge at short hydraulic retention times. BIORESOURCE TECHNOLOGY 2019; 272:180-187. [PMID: 30340183 DOI: 10.1016/j.biortech.2018.10.023] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Revised: 10/06/2018] [Accepted: 10/08/2018] [Indexed: 06/08/2023]
Abstract
Requirement of a long hydraulic retention time (HRT) for efficient degradation restrains the anaerobic digestion of hydrothermal pretreated sludge. Shortening the HRT can increase the treatment capacity of a plant but may also induce digester instability. This study investigated the impact of HRT on process performance and microbial community by consecutively operating a reactor for 145 days. The HRT was gradually decreased from 20 to 10, 5, and 3 days. The methane yield declined from 0.28 to 0.12 L/g-VSin with this shortening, and acetate concentration increased from 38 to 376 mg/L. Methanoculleus (58%) dominated methanogens at a 20 days HRT. However, the methanogenic structure shifted toward an increased level of Methanospirillum, representing 95% of the total archaea at a 3 days HRT. Microorganisms were almost washed out at the end of experiment. Conclusively, shortening HRTs is a feasible strategy to increase treatment capacity and produce more biogas at existing plants.
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Affiliation(s)
- Simon M Wandera
- College of Engineering, China Agricultural University, Beijing 100083, China; State R&D Center for Efficient Production and Comprehensive Utilization of Biobased Gaseous Fuels, Energy Authority, National Development and Reform Committee (BGFuels), Beijing 100083, China
| | - Maria Westerholm
- Department of Molecular Sciences, Swedish University of Agricultural Sciences, Uppsala BioCenter, Box 7025, SE-750 07 Uppsala, Sweden
| | - Wei Qiao
- College of Engineering, China Agricultural University, Beijing 100083, China; State R&D Center for Efficient Production and Comprehensive Utilization of Biobased Gaseous Fuels, Energy Authority, National Development and Reform Committee (BGFuels), Beijing 100083, China.
| | - Dongmin Yin
- College of Engineering, China Agricultural University, Beijing 100083, China; State R&D Center for Efficient Production and Comprehensive Utilization of Biobased Gaseous Fuels, Energy Authority, National Development and Reform Committee (BGFuels), Beijing 100083, China
| | - MengMeng Jiang
- College of Engineering, China Agricultural University, Beijing 100083, China; State R&D Center for Efficient Production and Comprehensive Utilization of Biobased Gaseous Fuels, Energy Authority, National Development and Reform Committee (BGFuels), Beijing 100083, China
| | - Renjie Dong
- College of Engineering, China Agricultural University, Beijing 100083, China; State R&D Center for Efficient Production and Comprehensive Utilization of Biobased Gaseous Fuels, Energy Authority, National Development and Reform Committee (BGFuels), Beijing 100083, China
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41
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Mehariya S, Patel AK, Obulisamy PK, Punniyakotti E, Wong JWC. Co-digestion of food waste and sewage sludge for methane production: Current status and perspective. BIORESOURCE TECHNOLOGY 2018; 265:519-531. [PMID: 29861300 DOI: 10.1016/j.biortech.2018.04.030] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Revised: 04/06/2018] [Accepted: 04/07/2018] [Indexed: 05/24/2023]
Abstract
Food waste (FW) is a valuable resource which requires sustainable management avenues to reduce the hazardous environmental impacts and add-value for better economy. Anaerobic digestion (AD) is still reliable, cost-effective technology for waste management. Conventional AD was originally designed for sewer sludge digestion, is not effective for FW due to mainly high organics and volatile fatty acid (VFA) accumulation, hence better technical aptitudes and biochemical inputs are required for optimal biogas production. Besides, to overcome these challenges, FW co-digestion with complementary organic waste e.g. sewage sludge (SS) mixed which complement each other for better process design. The main aim of this article is to summarize the recent updates and review different holistic approaches for efficient anaerobic co-digestion (AcoD) of FW and SS to provide a comprehensive review on the topic. Moreover, to demonstrate the status and perspectives of AcoD at present scenario for Hong Kong and rest of the world.
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Affiliation(s)
- Sanjeet Mehariya
- Sino-Forest Applied Research Centre for Pearl River Delta Environment, Department of Biology, Hong Kong Baptist University, Kowloon Tong, Hong Kong Special Administrative Region
| | - Anil Kumar Patel
- Institute of Bioresource and Agriculture, Department of Biology, Hong Kong Baptist University, Kowloon Tong, Hong Kong Special Administrative Region
| | - Parthiba Karthikeyan Obulisamy
- Sino-Forest Applied Research Centre for Pearl River Delta Environment, Department of Biology, Hong Kong Baptist University, Kowloon Tong, Hong Kong Special Administrative Region
| | - Elumalai Punniyakotti
- Sino-Forest Applied Research Centre for Pearl River Delta Environment, Department of Biology, Hong Kong Baptist University, Kowloon Tong, Hong Kong Special Administrative Region
| | - Jonathan W C Wong
- Sino-Forest Applied Research Centre for Pearl River Delta Environment, Department of Biology, Hong Kong Baptist University, Kowloon Tong, Hong Kong Special Administrative Region; Institute of Bioresource and Agriculture, Department of Biology, Hong Kong Baptist University, Kowloon Tong, Hong Kong Special Administrative Region.
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42
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Ganesh Saratale R, Kumar G, Banu R, Xia A, Periyasamy S, Dattatraya Saratale G. A critical review on anaerobic digestion of microalgae and macroalgae and co-digestion of biomass for enhanced methane generation. BIORESOURCE TECHNOLOGY 2018; 262:319-332. [PMID: 29576518 DOI: 10.1016/j.biortech.2018.03.030] [Citation(s) in RCA: 104] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2017] [Revised: 03/03/2018] [Accepted: 03/05/2018] [Indexed: 05/18/2023]
Abstract
Biogas production using algal resources has been widely studied as a green and alternative renewable technology. This review provides an extended overview of recent advances in biomethane production via direct anaerobic digestion (AD) of microalgae, macroalgae and co-digestion mechanism on biomethane production and future challenges and prospects for its scaled-up applications. The effects of pretreatment in the preparation of algal feedstock for methane generation are discussed briefly. The role of different operational and environmental parameters for instance pH, temperature, nutrients, organic loading rate (OLR) and hydraulic retention time (HRT) on sustainable methane generation are also reviewed. Finally, an outlook on the possible options towards the scale up and enhancement strategies has been provided. This review could encourage further studies in this area, to intend and operate continuous mode by designing stable and reliable bioreactor systems and to analyze the possibilities and potential of co-digestion for the promotion of algal-biomethane technology.
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Affiliation(s)
- Rijuta Ganesh Saratale
- Research Institute of Biotechnology and Medical Converged Science, Dongguk University-Seoul, Ilsandong-gu, Goyang-si, Gyeonggido 10326, Republic of Korea
| | - Gopalakrishnan Kumar
- School of Civil and Environmental Engineering, Yonsei University, Seoul 38722, Republic of Korea
| | - Rajesh Banu
- Department of Civil Engineering, Regional Centre of Anna University, Tirunelveli, India
| | - Ao Xia
- Key Laboratory of Low-grade Energy Utilization Technologies and Systems, Chongqing University, Chongqing 400044, China
| | | | - Ganesh Dattatraya Saratale
- Department of Food Science and Biotechnology, Dongguk University-Seoul, Ilsandong-gu, Goyang-si, Gyeonggido 10326, Republic of Korea.
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Li Z, Chen Z, Ye H, Wang Y, Luo W, Chang JS, Li Q, He N. Anaerobic co-digestion of sewage sludge and food waste for hydrogen and VFA production with microbial community analysis. WASTE MANAGEMENT (NEW YORK, N.Y.) 2018; 78:789-799. [PMID: 32559971 DOI: 10.1016/j.wasman.2018.06.046] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2018] [Revised: 05/23/2018] [Accepted: 06/24/2018] [Indexed: 06/11/2023]
Abstract
In this study, the anaerobic co-digestion of food waste (FW) and sewage sludge (SS) was investigated for the production of hydrogen and volatile fatty acids (VFAs). The results showed that the anaerobic co-digestion of these materials enhanced the hydrogen content by 62.4% (v/v), 29.89% higher than that obtained by FW digestion alone, and the total VFA production reached at 281.84 mg/g volatile solid (VS), a 8.38% increase. This enhancement was primarily resulted from improvements in the multi-substrate characteristics, which were obtained by supplying a higher soluble chemical oxygen demand (23.78-32.14 g/L) and suitable a pH (6.12-6.51), decreasing total ammonia nitrogen by 18.67% and ensuring a proper carbon/nitrogen ratio (15.01-23.01). Furthermore, maximal hydrogen (62.39 mL/g VS) and total VFA production potential (294.63 mg/g VS) were estimated using response surface methodology optimization, which yielded FW percentages of 85.17% and 79.87%, respectively. Based on a pyrosequencing analysis, the dominant bacteria associated with VFA and hydrogen production were promoted under optimized condition, including members of genera Veillonella and Clostridium and the orders Bacteroidales and Lactobacillales.
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Affiliation(s)
- Zhipeng Li
- Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, P.R. China; Fujian Provincial Key Laboratory of Fire Retardant Materials, College of Materials, Xiamen University, Xiamen, P.R. China; The Key Lab for Synthetic Biotechnology of Xiamen City, Xiamen University, Xiamen, P.R. China
| | - Zhen Chen
- Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, P.R. China; The Key Lab for Synthetic Biotechnology of Xiamen City, Xiamen University, Xiamen, P.R. China
| | - Hong Ye
- Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, P.R. China; The Key Lab for Synthetic Biotechnology of Xiamen City, Xiamen University, Xiamen, P.R. China
| | - Yuanpeng Wang
- Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, P.R. China; The Key Lab for Synthetic Biotechnology of Xiamen City, Xiamen University, Xiamen, P.R. China
| | - Weiang Luo
- Fujian Provincial Key Laboratory of Fire Retardant Materials, College of Materials, Xiamen University, Xiamen, P.R. China
| | - Jo-Shu Chang
- Department of Chemical Engineering, National Cheng Kung University, Tainan, Taiwan
| | - Qingbiao Li
- Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, P.R. China; The Key Lab for Synthetic Biotechnology of Xiamen City, Xiamen University, Xiamen, P.R. China
| | - Ning He
- Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, P.R. China; The Key Lab for Synthetic Biotechnology of Xiamen City, Xiamen University, Xiamen, P.R. China.
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44
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Martin Vincent N, Wei Y, Zhang J, Yu D, Tong J. Characterization and Dynamic Shift of Microbial Communities during Start-Up, Overloading and Steady-State in an Anaerobic Membrane Bioreactor. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2018; 15:ijerph15071399. [PMID: 29970829 PMCID: PMC6068774 DOI: 10.3390/ijerph15071399] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/24/2018] [Revised: 06/19/2018] [Accepted: 06/26/2018] [Indexed: 01/10/2023]
Abstract
A lab-scale anaerobic membrane bioreactor (AnMBR) with a side stream tubular membrane was developed to treat synthetic domestic sewage to evaluate its performance and the dynamic shift of bacterial and archaeal communities during the start-up, steady-state, overloading and recovery periods of operation at mesophilic temperatures. During the start-up period, the bacterial and archaeal communities changed drastically, and Proteobacteria and Bacteroidetes predominated. During the steady-state period, the AnMBR exhibited excellent COD removal above 91%, and COD of the effluent was below 50 mg/L. High-throughput sequencing analysis results revealed that bacterial and archaeal communities shifted significantly from the start-up to the steady-state period, and that the Proteobacteria phylum predominated on days 140, 162 and 190, and the archaea community hydrogenotrophic methanogen genus Methanolinea (1.5–6.64%) predominated over the aceticlastic methanogen genus Methanothrix (1.35–3.07%). During the overloading period, significant changes occurred in microbial community on day 210, e.g., the phyla Bacteroidetes (30%), Proteobacteria (23%) and Firmicutes (18%) predominated and the archaeal community was completely suppressed, and Methanobrevibacter (0.7%) was the only methanogen genus that emerged in the overloading period. After a shock loading period, the microbial communities exhibited significant changes within the ranks of methanogens and shifted to dominance of the aceticlastic methanogen pathway. In addition, the TVFAs to alkalinity ratio in this study was suitable as an indicator of monitoring performance in the AnMBR operation.
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Affiliation(s)
- Nsanzumukiza Martin Vincent
- State Key Joint Laboratory of Environmental Simulation and Pollution Control, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
- Department of Water Pollution Control Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
- University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Yuansong Wei
- State Key Joint Laboratory of Environmental Simulation and Pollution Control, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
- Department of Water Pollution Control Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
- University of Chinese Academy of Sciences, Beijing 100049, China.
- Institute of Energy, Jiangxi Academy of Sciences, Nanchang 330096, China.
| | - Junya Zhang
- State Key Joint Laboratory of Environmental Simulation and Pollution Control, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
- Department of Water Pollution Control Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
- University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Dawei Yu
- State Key Joint Laboratory of Environmental Simulation and Pollution Control, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
- Department of Water Pollution Control Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
- University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Juan Tong
- State Key Joint Laboratory of Environmental Simulation and Pollution Control, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
- Department of Water Pollution Control Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
- University of Chinese Academy of Sciences, Beijing 100049, China.
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Kong X, Yu S, Fang W, Liu J, Li H. Enhancing syntrophic associations among Clostridium butyricum, Syntrophomonas and two types of methanogen by zero valent iron in an anaerobic assay with a high organic loading. BIORESOURCE TECHNOLOGY 2018; 257:181-191. [PMID: 29501951 DOI: 10.1016/j.biortech.2018.02.088] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Revised: 02/15/2018] [Accepted: 02/16/2018] [Indexed: 05/28/2023]
Abstract
The impacts of ZVI on microbial community diversity in an anaerobic assay with high organic loading were investigated. The relative abundance of bacteria, archaea, and the functional methyl coenzyme-M reductase (mcrA) gene were investigated using high-throughput sequencing, and variations in their quantity were determined by qPCR. The results showed that ZVI significantly increased both the relative abundance and quantity of Methanobacteriales and Methanosarcinales during hydrogenotrophic and acetoclastic methanogenesis. The relative abundance of syntrophic Methanobacteriales at the hydrolysis and acidogenesis stages resulted in H2 partial pressure decrease through an interspecies hydrogen transfer (IHT) network, which further induced butyric conversion to acetic by Syntrophomonas. The primary microbial metabolism then converted to acetoclastic methanogensis in the assay with ZVI addition. The short duration of this process and high relative abundance of Syntrophomonas, Clostridium butyricum and Methanosarcinales potentially indicated the existence of a novelty syntrophic mechanism for extracellular electron transfer, which promoted CH4 generation.
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Affiliation(s)
- Xin Kong
- Key Laboratory for Solid Waste Management and Environment Safety, Ministry of Education of China, School of Environment, Tsinghua University, Beijing 10084, PR China; College of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, PR China
| | - Shuyao Yu
- Key Laboratory for Solid Waste Management and Environment Safety, Ministry of Education of China, School of Environment, Tsinghua University, Beijing 10084, PR China
| | - Wen Fang
- Key Laboratory for Solid Waste Management and Environment Safety, Ministry of Education of China, School of Environment, Tsinghua University, Beijing 10084, PR China
| | - Jianguo Liu
- Key Laboratory for Solid Waste Management and Environment Safety, Ministry of Education of China, School of Environment, Tsinghua University, Beijing 10084, PR China.
| | - Huan Li
- Shenzhen Environmental Microbial Application and Risk Control Key Laboratory, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, PR China
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Heidrich E, Dolfing J, Wade M, Sloan W, Quince C, Curtis T. Temperature, inocula and substrate: Contrasting electroactive consortia, diversity and performance in microbial fuel cells. Bioelectrochemistry 2018; 119:43-50. [DOI: 10.1016/j.bioelechem.2017.07.006] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2017] [Revised: 06/21/2017] [Accepted: 07/14/2017] [Indexed: 11/29/2022]
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Wang P, Wang H, Qiu Y, Ren L, Jiang B. Microbial characteristics in anaerobic digestion process of food waste for methane production-A review. BIORESOURCE TECHNOLOGY 2018; 248:29-36. [PMID: 28779951 DOI: 10.1016/j.biortech.2017.06.152] [Citation(s) in RCA: 189] [Impact Index Per Article: 31.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2017] [Revised: 06/26/2017] [Accepted: 06/27/2017] [Indexed: 06/07/2023]
Abstract
Food waste (FW) is rich in starch, fat, protein and cellulose. It is easy to decay and brings environmental pollution and other social problems. FW shows a high potential to produce methane by anaerobic digestion (AD) due to its high organic content. However, many inhibitors, such as accumulation of ammonia and volatile fatty acids (VFAs), usually result in inefficient performances and even process failure. Microorganisms play an important role in the process of hydrolysis, acidogenesis, acetogenesis and methanogenesis. This review provided a critical summary of microbial characteristics to obtain connects of microbial community structure with operational conditions at various states of AD, such as mesophilic and thermophilic, wet and dry, success and failure, pretreated or not, lab-scale and full-scale. This article emphasizes that it is necessary to analyze changes and mechanisms of microbial communities in unbalanced system and seek efficiency dynamic succession rules of the dominant microorganisms.
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Affiliation(s)
- Pan Wang
- School of Food and Chemical Engineering, Beijing Technology and Business University, Beijing 100048, China
| | - Hongtao Wang
- School of Environment, Tsinghua University, Beijing 100084, China
| | - Yinquan Qiu
- School of Food and Chemical Engineering, Beijing Technology and Business University, Beijing 100048, China
| | - Lianhai Ren
- School of Food and Chemical Engineering, Beijing Technology and Business University, Beijing 100048, China.
| | - Bin Jiang
- China Cleaner Production Center of Light Industry, Beijing 100012, China
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Kong X, Yu S, Xu S, Fang W, Liu J, Li H. Effect of Fe 0 addition on volatile fatty acids evolution on anaerobic digestion at high organic loading rates. WASTE MANAGEMENT (NEW YORK, N.Y.) 2018; 71:719-727. [PMID: 28320620 DOI: 10.1016/j.wasman.2017.03.019] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2016] [Revised: 02/16/2017] [Accepted: 03/11/2017] [Indexed: 06/06/2023]
Abstract
Excessive acidification frequently occurs in the anaerobic digestion of the organic fraction of municipal solid waste (OFMSW) at high organic loading rates (OLR), due to the accumulation of non-acetic volatile fatty acids (VFA). In this study, the performance of Fe0 in enhancing various VFA production and metabolism was investigated. The butyric acid concentration in a high OLR reactor with Fe0 addition decreased from 7200 to 0mg/L after a short lag phase, and the total VFA (TVFA) concentration also decreased substantially. The corresponding dominant acidogenesis type also changed from butyric type to propionic type fermentation. Furthermore, the CH4 yield of the reactor with added Fe0 was approximately 595ml CH4/g VSadded, which was an increase of 41.7% compared with the biochemical methane potential (BMP) test results in controls without added ZVI. A microbial diversity analysis, using high throughput sequencing, showed that Methanofollis and Methanosarcina were dominant in terms of the archaeal structures of the Fe0 reactor at the butyric converting stage; however, Methanosaeta was predominant in the reactor during the control BMP test. These results suggested that Fe0 can convert non-acetic VFA to acetic VFA and improve the CH4 yield by enhancing the activity of methanogens.
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Affiliation(s)
- Xin Kong
- Key Laboratory for Solid Waste Management and Environment Safety, Ministry of Education of China, School of Environment, Tsinghua University, Beijing 10084, China
| | - Shuyao Yu
- Key Laboratory for Solid Waste Management and Environment Safety, Ministry of Education of China, School of Environment, Tsinghua University, Beijing 10084, China
| | - Shuang Xu
- Key Laboratory for Solid Waste Management and Environment Safety, Ministry of Education of China, School of Environment, Tsinghua University, Beijing 10084, China
| | - Wen Fang
- Key Laboratory for Solid Waste Management and Environment Safety, Ministry of Education of China, School of Environment, Tsinghua University, Beijing 10084, China
| | - Jianguo Liu
- Key Laboratory for Solid Waste Management and Environment Safety, Ministry of Education of China, School of Environment, Tsinghua University, Beijing 10084, China.
| | - Huan Li
- Shenzhen Environmental Microbial Application and Risk Control Key Laboratory, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China
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49
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Rojas-Sossa JP, Murillo-Roos M, Uribe L, Uribe-Lorio L, Marsh T, Larsen N, Chen R, Miranda A, Solís K, Rodriguez W, Kirk D, Liao W. Effects of coffee processing residues on anaerobic microorganisms and corresponding digestion performance. BIORESOURCE TECHNOLOGY 2017; 245:714-723. [PMID: 28917107 DOI: 10.1016/j.biortech.2017.08.098] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2017] [Revised: 08/14/2017] [Accepted: 08/16/2017] [Indexed: 06/07/2023]
Abstract
The objective of this study was to delineate the effects of different coffee processing residues on the anaerobic microbes and corresponding digestion performance. The results elucidated that mucilage-rich feed enhanced the accumulation of methanogens, which consequently led to better digestion performance of biogas production. Fifty percent more methane and up to 3 times more net energy (heat and electricity) output were achieved by the digestion of the mucilage-rich feed (M3). The microbial community and statistical analyses further elucidated that different residues in the feed had significant impact on microbial distribution and correspondingly influenced the digestion performance.
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Affiliation(s)
- Juan Pablo Rojas-Sossa
- Agricultural Engineering, University of Costa Rica, San José, Costa Rica; Anaerobic Digestion Research and Education Center, Biosystems and Agricultural Engineering, Michigan State University, MI, USA
| | - Mariana Murillo-Roos
- Agronomy Research Center, University of Costa Rica, San José, Costa Rica; National Institute for Innovation and Transfer of Agricultural Technology, Ministry of Agriculture, San José, Costa Rica
| | - Lidieth Uribe
- Agronomy Research Center, University of Costa Rica, San José, Costa Rica
| | - Lorena Uribe-Lorio
- Cellular and Molecular Biology Research Center, University of Costa Rica, San José, Costa Rica
| | - Terence Marsh
- Microbiology and Molecular Genetics, Michigan State University, MI, USA
| | | | - Rui Chen
- Anaerobic Digestion Research and Education Center, Biosystems and Agricultural Engineering, Michigan State University, MI, USA
| | - Alberto Miranda
- Fabio Baudrit Experimental Station, University of Costa Rica, San José, Costa Rica
| | - Kattia Solís
- Agricultural Engineering, University of Costa Rica, San José, Costa Rica
| | - Werner Rodriguez
- Fabio Baudrit Experimental Station, University of Costa Rica, San José, Costa Rica
| | - Dana Kirk
- Anaerobic Digestion Research and Education Center, Biosystems and Agricultural Engineering, Michigan State University, MI, USA
| | - Wei Liao
- Anaerobic Digestion Research and Education Center, Biosystems and Agricultural Engineering, Michigan State University, MI, USA.
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50
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He Q, Li L, Zhao X, Qu L, Wu D, Peng X. Investigation of foaming causes in three mesophilic food waste digesters: reactor performance and microbial analysis. Sci Rep 2017; 7:13701. [PMID: 29057910 PMCID: PMC5651842 DOI: 10.1038/s41598-017-14258-3] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2017] [Accepted: 10/09/2017] [Indexed: 12/21/2022] Open
Abstract
Foaming negatively affects anaerobic digestion of food waste (FW). To identify the causes of foaming, reactor performance and microbial community dynamics were investigated in three mesophilic digesters treating FW. The digesters were operated under different modes, and foaming was induced with several methods. Proliferation of specific bacteria and accumulation of surface active materials may be the main causes of foaming. Volatile fatty acids (VFAs) and total ammonia nitrogen (TAN) accumulated in these reactors before foaming, which may have contributed to foam formation by decreasing the surface tension of sludge and increasing foam stability. The relative abundance of acid-producing bacteria (Petrimonas, Fastidiosipila, etc.) and ammonia producers (Proteiniphilum, Gelria, Aminobacterium, etc.) significantly increased after foaming, which explained the rapid accumulation of VFAs and NH4+ after foaming. In addition, the proportions of microbial genera known to contribute to foam formation and stabilization significantly increased in foaming samples, including bacteria containing mycolic acid in cell walls (Actinomyces, Corynebacterium, etc.) and those capable of producing biosurfactants (Corynebacterium, Lactobacillus, 060F05-B-SD-P93, etc.). These findings improve the understanding of foaming mechanisms in FW digesters and provide a theoretical basis for further research on effective suppression and early warning of foaming.
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Affiliation(s)
- Qin He
- Key Laboratory of Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing, 400045, PR China
| | - Lei Li
- Key Laboratory of Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing, 400045, PR China
| | - Xiaofei Zhao
- Key Laboratory of Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing, 400045, PR China
| | - Li Qu
- Key Laboratory of Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing, 400045, PR China
| | - Di Wu
- Key Laboratory of Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing, 400045, PR China
| | - Xuya Peng
- Key Laboratory of Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing, 400045, PR China.
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