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Han Y, Zhang Y, Yang Z, Zhang Q, He X, Song Y, Tian L, Wu H. Improving Aerobic Digestion of Food Waste by Adding a Personalized Microbial Inoculum. Curr Microbiol 2024; 81:277. [PMID: 39028528 DOI: 10.1007/s00284-024-03796-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Accepted: 07/02/2024] [Indexed: 07/20/2024]
Abstract
In the context of China's garbage classification policy, on-site aerobic food waste (FW) digestion is crucial for reducing transportation and disposal costs. The efficiency of this process is largely determined by the microbial community structure and its functions. Therefore, this study aimed to analyze the impact of a personalized microbial consortium (MCM) on the efficiency of aerobic FW digestion and to reveal the underlying mechanisms. An MCM, sourced from naturally degrading FW, was selected to enrich degrading bacteria with relatively high hydrolyzing ability. The functionality of the MCM was evaluated by tracing the successions of microbial communities, and comparing the differences in the forms of organic compounds, metabolic functions, and hydrolase activities. X-ray photoelectron spectroscopy demonstrated that the MCM metabolized faster, and produced more acidic metabolites. Metagenomic analysis indicated that FW inoculated with the personalized MCM increased abundance of Bacillaceae producing hydrolysis enzymes and promoted glycolysis metabolic pathways, enhancing energy generation for metabolism, compared to the commercial effective bacterial agent. This paper provides both theoretical and practical evidence for the improvement of biochemical processor of FW with the personalized MCM, which has promising application prospects and economic value.
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Affiliation(s)
- Ying Han
- School of Environmental and Chemical Engineering, YanShan University, 438# West Hebei Street, Haigang District, Qinhuangdao, 066004, Hebei, P.R. China.
- Hebei Province Key Laboratory of Deep Remediation of Heavy Metals in Water and Resource Utilization, YanShan University, Qinhuangdao, 066004, Hebei, P.R. China.
| | - Yuman Zhang
- School of Environmental and Chemical Engineering, YanShan University, 438# West Hebei Street, Haigang District, Qinhuangdao, 066004, Hebei, P.R. China
| | - Zijian Yang
- School of Environmental and Chemical Engineering, YanShan University, 438# West Hebei Street, Haigang District, Qinhuangdao, 066004, Hebei, P.R. China
| | - Qingrui Zhang
- School of Environmental and Chemical Engineering, YanShan University, 438# West Hebei Street, Haigang District, Qinhuangdao, 066004, Hebei, P.R. China
- Hebei Province Key Laboratory of Deep Remediation of Heavy Metals in Water and Resource Utilization, YanShan University, Qinhuangdao, 066004, Hebei, P.R. China
| | - Xin He
- Hebei Key Laboratory of Agroecological Safety, Hebei University of Environmental Engineering, Qinhuangdao, 066102, Hebei, P.R. China
| | - Yu Song
- Hebei Key Laboratory of Agroecological Safety, Hebei University of Environmental Engineering, Qinhuangdao, 066102, Hebei, P.R. China
| | - Lili Tian
- School of Environmental and Chemical Engineering, YanShan University, 438# West Hebei Street, Haigang District, Qinhuangdao, 066004, Hebei, P.R. China
- Hebei Province Key Laboratory of Deep Remediation of Heavy Metals in Water and Resource Utilization, YanShan University, Qinhuangdao, 066004, Hebei, P.R. China
| | - Hao Wu
- School of Environmental and Chemical Engineering, YanShan University, 438# West Hebei Street, Haigang District, Qinhuangdao, 066004, Hebei, P.R. China
- Hebei Province Key Laboratory of Deep Remediation of Heavy Metals in Water and Resource Utilization, YanShan University, Qinhuangdao, 066004, Hebei, P.R. China
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Xu S, Tao L, Wang J, Zhang X, Huang Z. Rapid in-situ aerobic biodegradation of high salt and oily food waste employing constructed synthetic microbiome. Eng Life Sci 2024; 24:2200067. [PMID: 38708412 PMCID: PMC11065329 DOI: 10.1002/elsc.202200067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 11/16/2022] [Accepted: 11/22/2022] [Indexed: 02/05/2023] Open
Abstract
The high salt content of food waste (FW) severely limits microbial physiological activity and reduces its biodegradability. In this study, a salt-tolerant thermophilic bacterial agent that consists of four different substrate degradation functional strains was evaluated for efficient high salt and oily FW in solid-state aerobic biodegradation disposers. The phy-chemical properties, enzyme activities, microbial community structure, and function during the biodegradation process were evaluated under high salt (5%) stress. The results showed that the agent promoted the degradation rate, increased the matrix temperature, decreased the moisture content (MC), and enhanced enzyme activities without putrid smell. High-throughput sequencing indicated community structure succession between different groups and the positive contribution of the inoculated functional strains. During the FW biodegradation process, the Bacillus sp. inoculated was the dominant genus in the agent group. Furthermore, CCA further confirmed the positive effects of the four inoculated strains on high salt and oily FW aerobic biodegradation. Functional prediction and metabolite results both confirmed that the agent was more efficient in carbon, amino acid, and lipid metabolism, which demonstrated that the synthetic microbial consortium holds a potential advantage for efficiency and subsequent resource utilization for organic fertilizer.
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Affiliation(s)
- Song Xu
- Tianjin Institute of Industrial BiotechnologyChinese Academy of SciencesTianjinChina
- National Technology Innovation Center of Synthetic BiologyTianjinChina
| | - Lidan Tao
- Tianjin Institute of Industrial BiotechnologyChinese Academy of SciencesTianjinChina
- National Technology Innovation Center of Synthetic BiologyTianjinChina
| | - Jingjing Wang
- Tianjin Institute of Industrial BiotechnologyChinese Academy of SciencesTianjinChina
- National Technology Innovation Center of Synthetic BiologyTianjinChina
| | - Xiaoxia Zhang
- Tianjin Institute of Industrial BiotechnologyChinese Academy of SciencesTianjinChina
- National Technology Innovation Center of Synthetic BiologyTianjinChina
| | - Zhiyong Huang
- Tianjin Institute of Industrial BiotechnologyChinese Academy of SciencesTianjinChina
- National Technology Innovation Center of Synthetic BiologyTianjinChina
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3
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Zhao ZQ, Yang J, Chen HY, Wang WF, Lian XJ, Xie XJ, Wang M, Yu KF, Zheng HB. Construction and application of highly efficient waste cooking oil degrading bacteria consortium in oily wastewater. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:125677-125688. [PMID: 38001293 DOI: 10.1007/s11356-023-31107-1] [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: 07/29/2023] [Accepted: 11/15/2023] [Indexed: 11/26/2023]
Abstract
The treatment of cooking oil wastewater is an urgent issue need to be solved. We aimed to screen for efficient oil-degrading bacteria and develop a new microbial agent for degrading waste cooking oil in oily wastewater. Three extremely effective oil-degrading bacteria, known as YZQ-1, YZQ-3, and YZQ-4, were found by the enrichment and acclimation of samples from various sources and separation using oil degradation plates. The 16S rRNA sequencing analysis and phylogenetic tree construction showed that the three strains were Bacillus tropicus, Pseudomonas multiresinivorans, and Raoultella terrigena. Under optimal degradation conditions, the maximal degradation rates were 67.30 ± 3.69%, 89.65 ± 1.08%, and 79.60 ± 5.30%, respectively, for YZQ-1, YZQ-3, and YZQ-4. Lipase activity was highest for YZQ-3, reaching 94.82 ± 12.89 U/L. The best bacterial alliance was obtained by adding equal numbers of microbial cells from the three strains. Moreover, when this bacterial alliance was applied to oily wastewater, the degradation rate of waste cooking oil was 61.13 ± 7.30% (3.67% ± 2.13% in the control group), and COD removal was 62.4% ± 5.65% (55.60% ± 0.71% in the control group) in 72 h. Microbial community analysis results showed YZQ-1 and YZQ-3 were adaptable to wastewater and could coexist with local bacteria, whereas YZQ-4 could not survive in wastewater. Therefore, the combination of YZQ-1 and YZQ-3 can efficiently degrade oil and shows great potential for oily wastewater treatment.
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Affiliation(s)
- Zhuo-Qun Zhao
- Key Laboratory of Soil Contamination Bioremediation of Zhejiang Province, College of Environmental and Resources Sciences, Zhejiang A&F University, Hangzhou, 311300, China
| | - Jian Yang
- Key Laboratory of Soil Contamination Bioremediation of Zhejiang Province, College of Environmental and Resources Sciences, Zhejiang A&F University, Hangzhou, 311300, China
| | - Heng-Yuan Chen
- Key Laboratory of Soil Contamination Bioremediation of Zhejiang Province, College of Environmental and Resources Sciences, Zhejiang A&F University, Hangzhou, 311300, China
| | - Wen-Fan Wang
- Key Laboratory of Soil Contamination Bioremediation of Zhejiang Province, College of Environmental and Resources Sciences, Zhejiang A&F University, Hangzhou, 311300, China
| | - Xiao-Jian Lian
- Key Laboratory of Soil Contamination Bioremediation of Zhejiang Province, College of Environmental and Resources Sciences, Zhejiang A&F University, Hangzhou, 311300, China
| | - Xiao-Jie Xie
- Key Laboratory of Soil Contamination Bioremediation of Zhejiang Province, College of Environmental and Resources Sciences, Zhejiang A&F University, Hangzhou, 311300, China
| | - Min Wang
- Key Laboratory of Soil Contamination Bioremediation of Zhejiang Province, College of Environmental and Resources Sciences, Zhejiang A&F University, Hangzhou, 311300, China
| | - Ke-Fei Yu
- Key Laboratory of Soil Contamination Bioremediation of Zhejiang Province, College of Environmental and Resources Sciences, Zhejiang A&F University, Hangzhou, 311300, China
| | - Hua-Bao Zheng
- Key Laboratory of Soil Contamination Bioremediation of Zhejiang Province, College of Environmental and Resources Sciences, Zhejiang A&F University, Hangzhou, 311300, China.
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Kumar N, Gupta SK, Yadav B. Optimisation of process parameters of a thermal digester for the rapid conversion of food waste into value-added soil conditioner. WASTE MANAGEMENT & RESEARCH : THE JOURNAL OF THE INTERNATIONAL SOLID WASTES AND PUBLIC CLEANSING ASSOCIATION, ISWA 2023; 41:1632-1648. [PMID: 37073807 DOI: 10.1177/0734242x231167078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
A novel thermal digester for converting food waste (FW) into nutrient-rich soil conditioner was designed and explored. The process variables, that is, temperature, the volume of the digestion chamber and the rotational speed of the digester were optimised using response surface methodology (RSM). The study revealed that the digester temperature of 150°C and rotational speed of 40 RPM required minimum time (180 minutes) for attaining the equilibrium moisture with a minimum energy consumption of 0.218 kWh kg-1. The process resulted in 80 ± 2.5% reduction in total volume of the FW. Detailed characterisation revealed that the end product was comparable to the organic fertiliser as per the Fertiliser Association of India norms. The digestion helps in breakdown of cellulose content of FW into hemicellulose which supports formation of primary and secondary walls, seed storage carbohydrates, and facilitates plant growth. 1H-Nuclear magnetic resonance (1H-NMR) spectra of the end product revealed mineralisation of organics during digestion. Decrease in ultraviolet (UV) absorbance value at 280 nm also revealed the humification of the end product. X-ray diffraction (XRD) analysis disclosed extremely low crystallinity and non-recalcitrant nature of the end product. A low humification index value (HI-3.43), high fertilising index (FI-4.8), and clean index (CI-5.0) revealed that the end product could safely be utilised as an organic fertiliser. The cost-benefit analysis revealed that thermal digestion technique is profitable and economically viable with benefit-cost ratio (BCR) of 1.35. The study offers a unique approach for the rapid and hassle-free production of value-added soil conditioner from FW.
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Affiliation(s)
- Nitin Kumar
- Indian Institute of Technology (Indian School of Mines), Dhanbad, Jharkhand, India
| | - Sunil Kumar Gupta
- Indian Institute of Technology (Indian School of Mines), Dhanbad, Jharkhand, India
| | - Brahmdeo Yadav
- Birsa Institute of Technology, Sindri, Dhanbad, Jharkhand, India
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Zhou SP, Tang SQ, Ke X, Zhou HY, Zou SP, Xue YP, Zheng YG. Hyperthermophilic pretreatment significantly accelerates thermophilic composting humification through improving bacterial communities and promoting microbial cooperation. BIORESOURCE TECHNOLOGY 2023:129467. [PMID: 37429549 DOI: 10.1016/j.biortech.2023.129467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 06/30/2023] [Accepted: 07/05/2023] [Indexed: 07/12/2023]
Abstract
Thermophilic composting (TC) can effectively shorten maturity period with satisfactory sanitation. However, the higher energy consumption and lower composts quality limited its widespread application. In this study, hyperthermophilic pretreatment (HP) was introduced as a novel approach within TC, and its effects on humification process and bacterial community during food waste TC was investigated from multiple perspectives. Results showed that a 4-hour pretreatment at 90 °C increased the germination index and humic acid/fulvic acid by 25.52% and 83.08%. Microbial analysis demonstrated that HP stimulated the potential functional thermophilic microbes, and significantly up-regulated the genes related to amino acid biosynthesis. Further network and correlation analysis suggested that pH was the key factor affecting bacterial communities, and higher HP temperatures help to restore bacterial cooperation and showed higher humification degree. In summary, this study contributed to a better understanding of the mechanism towards the accelerated humification by HP.
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Affiliation(s)
- Shi-Peng Zhou
- Engineering Research Center of Bioconversion and Biopurification of Ministry of Education, Zhejiang University of Technology, Hangzhou 310014, China
| | - Su-Qin Tang
- Hangzhou Environmental Group Company Limited, Hangzhou 310022, China
| | - Xia Ke
- Engineering Research Center of Bioconversion and Biopurification of Ministry of Education, Zhejiang University of Technology, Hangzhou 310014, China
| | - Hai-Yan Zhou
- Engineering Research Center of Bioconversion and Biopurification of Ministry of Education, Zhejiang University of Technology, Hangzhou 310014, China
| | - Shu-Ping Zou
- Engineering Research Center of Bioconversion and Biopurification of Ministry of Education, Zhejiang University of Technology, Hangzhou 310014, China
| | - Ya-Ping Xue
- Engineering Research Center of Bioconversion and Biopurification of Ministry of Education, Zhejiang University of Technology, Hangzhou 310014, China.
| | - Yu-Guo Zheng
- Engineering Research Center of Bioconversion and Biopurification of Ministry of Education, Zhejiang University of Technology, Hangzhou 310014, China
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Utilization of nanoparticles for biogas production focusing on process stability and effluent quality. SN APPLIED SCIENCES 2022. [DOI: 10.1007/s42452-022-05222-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
Abstract
One of the most important techniques for converting complex organic waste into renewable energy in the form of biogas and effluent is anaerobic digestion. Several issues have been raised related to the effectiveness of the anaerobic digestion process in recent years. Hence nanoparticles (NPs) have been used widely in anaerobic digestion process for converting organic wastes into useful biogas and effluent in an effective way. This review addresses the knowledge gaps and summarizes recent researchers’ findings concentrating on the stability and effluent quality of the cattle manure anaerobic digestion process using single and combinations nanoparticle. In summary, the utilization of NPs have beneficial effects on CH4 production, process optimization, and effluent quality. Their function, as key nutrient providers, aid in the synthesis of key enzymes and co-enzymes, and thus stimulate anaerobic microorganism activities when present at an optimum concentration (e.g., Fe NPs 100 mg/L; Ni NPs 2 mg/L; Co NPs 1 mg/L). Furthermore, utilizing Fe NPs at concentrations higher than 100 mg/L is more effective at reducing H2S production than increasing CH4, whereas Ni NPs and Co NPs at concentrations greater than 2 mg/L and 1 mg/L, respectively, reduce CH4 production. Effluent with Fe and Ni NPs showed stronger fertilizer values more than Co NPs. Fe/Ni/Co NP combinations are more efficient in enhancing CH4 production than single NPs. Therefore, it is possible to utilize NPs combinations as additives to improve the effectiveness of anaerobic digestion.
Article highlights
Single NPs (e.g., Fe, Ni, and Co NPs) in low concentrations are more effective in increasing CH4 production than reducing H2S production.
Optimal Fe, Ni, and Co NP concentrations enhance anaerobic digestion process performance.
Addition of Fe, Ni, and Co NPs above tolerated concentration causes irreversible inhibition in anaerobic digestion.
Effluent with Fe, Ni, and Co NPs showed stronger fertilizer values.
Nanoparticle combinations are more effective for increasing the CH4 production than signal NPs.
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7
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Substrate Characteristics Fluctuations in Full-Scale Anaerobic Digesters Treating Food Waste at Marginal Organic Loading Rates: A Case Study. ENERGIES 2022. [DOI: 10.3390/en15093471] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
The design of a full-scale bioprocess is typically based on parameters derived from smaller-scale experiments from a previous study. However, disagreements often occur at up-scaling of waste-to-energy processes due to the fluctuations of the substrate characteristics, etc. Therefore, once a commercial-scale waste digester has been built and operated, it is essential to test if the performance of the process agrees with its design value; during this process, fluctuations might occur in digesters operated at marginal organic loading rates. In this study, triplicate full-scale anaerobic digesters treating food waste were monitored for five months. The digesters, operated at the design feeding ratio, showed increasing volatile fatty acid (VFA) trends (per total alkalinity) due to a 30% higher chemical oxygen demand of the influent, than the design. The organic loading rate was adjusted on a daily basis until a stable performance was observed. Significant shifts of methanogen populations from Methanobacteriales to Methanomicrobiales and Methanosarcinales were observed during the stable operation period.
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Ravindran B, Karmegam N, Awasthi MK, Chang SW, Selvi PK, Balachandar R, Chinnappan S, Azelee NIW, Munuswamy-Ramanujam G. Valorization of food waste and poultry manure through co-composting amending saw dust, biochar and mineral salts for value-added compost production. BIORESOURCE TECHNOLOGY 2022; 346:126442. [PMID: 34848334 DOI: 10.1016/j.biortech.2021.126442] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 11/21/2021] [Accepted: 11/24/2021] [Indexed: 06/13/2023]
Abstract
The present study proposes a system for co-composting food waste and poultry manure amended with rice husk biochar at different doses (0, 3, 5, 10%, w/w), saw dust, and salts. The effect of rice husk biochar on the characteristics of final compost was evaluated through stabilization indices such as electrical conductivity, bulk density, total porosity, gaseous emissions and nitrogen conservation. Results indicated that when compared to control, the biochar amendment extended the thermophilic stage of the composting, accelerated the biodegradation and mineralization of substrate mixture and helped in the maturation of the end product. Carbon dioxide, methane and ammonia emissions were reduced and the nitrogen conservation was achieved at a greater level in the 10% (w/w) biochar amended treatments. This study implies that the biochar and salts addition for co-composting food waste and poultry manure is beneficial to enhance the property of the compost.
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Affiliation(s)
- Balasubramani Ravindran
- Department of Environmental Energy and Engineering, Kyonggi University, Youngtong-Gu, Suwon, Gyeonggi-Do 16227, Republic of Korea; Institute of Bioresource and Agriculture, Sino-Forest Applied Research Centre for Pearl River Delta Environment and Department of Biology, Hong Kong Baptist University, Hong Kong.
| | - Natchimuthu Karmegam
- Department of Botany, Government Arts College (Autonomous), Salem 636 007, Tamil Nadu, India
| | - Mukesh Kumar Awasthi
- College of Natural Resources and Environment, Northwest A&F University, TaichengRoad3#, Yangling, Shaanxi 712100, PR China
| | - Soon Woong Chang
- Department of Environmental Energy and Engineering, Kyonggi University, Youngtong-Gu, Suwon, Gyeonggi-Do 16227, Republic of Korea
| | - P K Selvi
- Central Pollution Control Board, Nisarga Bhawan, Shivanagar, Bengaluru, India
| | - Ramalingam Balachandar
- Department of Biotechnology, Aarupadai Veedu Institute of Technology, Vinayaka Missions University (Deemed to Be University), Paiyanoor, Chennai, 603 104, Tamil Nadu, India
| | - Sasikala Chinnappan
- Faculty of Pharmaceutical Sciences, UCSI University, 56000 Cheras, Kuala Lumpur, Malaysia
| | - Nur Izyan Wan Azelee
- School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, Skudai, 81310, Johor, Malaysia
| | - Ganesh Munuswamy-Ramanujam
- Molecular Biology and Immunobiology Division, Interdisciplinary Institute of Indian System of Medicine, SRM-IST, Kattankulathur, Kanchipuram Dist, TN, India
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Zhou SP, Ke X, Zhou HY, Zou SP, Xue YP, Zheng YG. Community scale in-situ rapid biological reduction and resource recovery of food waste. BIORESOURCE TECHNOLOGY 2022; 346:126603. [PMID: 34953987 DOI: 10.1016/j.biortech.2021.126603] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Revised: 12/10/2021] [Accepted: 12/17/2021] [Indexed: 06/14/2023]
Abstract
In this study, a community-scale in-situ rapid biological reduction (IRBR) system was applied to achieve the rapid disposal and resource recovery of food waste (FW). A total of 5263 kg FW was processed in the 35 days of stably operation, during which 84.37% total mass reduction and 43.30% volatile solid removal were achieved, and the odor had been effectively controlled. Microbial sequencing results showed that aerobic and facultative thermophilic bacteria were major bacterial community, and vigorous metabolism of both carbohydrate and amino acid were maintained during the IRBR process. The final products have the potential to be recycled as organic fertilizers or bio-solid fuel to realize resource recovery. The results of economic analysis showed that the IRBR system had lower FW disposal costs due to the high automation. These results suggested that the IRBR system was an environmentally friendly, economical and practical method for the FW rapid treatment.
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Affiliation(s)
- Shi-Peng Zhou
- Engineering Research Center of Bioconversion and Biopurification of Ministry of Education, Zhejiang University of Technology, Hangzhou 310014, China
| | - Xia Ke
- Engineering Research Center of Bioconversion and Biopurification of Ministry of Education, Zhejiang University of Technology, Hangzhou 310014, China
| | - Hai-Yan Zhou
- Engineering Research Center of Bioconversion and Biopurification of Ministry of Education, Zhejiang University of Technology, Hangzhou 310014, China
| | - Shu-Ping Zou
- Engineering Research Center of Bioconversion and Biopurification of Ministry of Education, Zhejiang University of Technology, Hangzhou 310014, China
| | - Ya-Ping Xue
- Engineering Research Center of Bioconversion and Biopurification of Ministry of Education, Zhejiang University of Technology, Hangzhou 310014, China.
| | - Yu-Guo Zheng
- Engineering Research Center of Bioconversion and Biopurification of Ministry of Education, Zhejiang University of Technology, Hangzhou 310014, China
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Chong JWR, Khoo KS, Yew GY, Leong WH, Lim JW, Lam MK, Ho YC, Ng HS, Munawaroh HSH, Show PL. Advances in production of bioplastics by microalgae using food waste hydrolysate and wastewater: A review. BIORESOURCE TECHNOLOGY 2021; 342:125947. [PMID: 34563823 DOI: 10.1016/j.biortech.2021.125947] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Revised: 09/09/2021] [Accepted: 09/12/2021] [Indexed: 06/13/2023]
Abstract
Microalgae have emerged as an effective dual strategy for bio-valorisation of food processing wastewater and food waste hydrolysate which favours microalgae cultivation into producing value-added by products mainly lipids, carbohydrates, and proteins to the advantages of bioplastic production. Moreover, various microalgae have successfully removed high amount of organic pollutants from food processing wastewater prior discharging into the environment. Innovation of microalgae cultivating in food processing wastewater greatly reduced the cost of wastewater treatment compared to conventional approach in terms of lower carbon emissions, energy consumption, and chemical usage while producing microalgae biomass which can benefit low-cost fertilizer and bioplastic applications. The study on several microalgae species has all successfully grown on food waste hydrolysates showing high exponential growth rate and biomass production rich in proteins, lipids, carbohydrates, and fatty acids. Multiple techniques have been implemented for the extraction of food wastes to be incorporate into the bioplastic production.
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Affiliation(s)
- Jun Wei Roy Chong
- Department of Chemical and Environmental Engineering, Faculty of Science and Engineering, University of Nottingham Malaysia, Jalan Broga, 43500 Semenyih, Selangor Darul Ehsan, Malaysia
| | - Kuan Shiong Khoo
- Department of Chemical and Environmental Engineering, Faculty of Science and Engineering, University of Nottingham Malaysia, Jalan Broga, 43500 Semenyih, Selangor Darul Ehsan, Malaysia; Faculty of Applied Sciences, UCSI University, No. 1, Jalan Menara Gading, UCSI Heights, Cheras, 56000 Kuala Lumpur, Malaysia
| | - Guo Yong Yew
- Department of Chemical and Environmental Engineering, Faculty of Science and Engineering, University of Nottingham Malaysia, Jalan Broga, 43500 Semenyih, Selangor Darul Ehsan, Malaysia
| | - Wai Hong Leong
- HICoE-Centre for Biofuel and Biochemical Research, Institute of Self-Sustainable Building, Universiti Teknologi PETRONAS, Seri Iskandar, Malaysia; Fundamental and Applied Sciences Department, Universiti Teknologi PETRONAS, Seri Iskandar, Malaysia
| | - Jun Wei Lim
- HICoE-Centre for Biofuel and Biochemical Research, Institute of Self-Sustainable Building, Universiti Teknologi PETRONAS, Seri Iskandar, Malaysia; Fundamental and Applied Sciences Department, Universiti Teknologi PETRONAS, Seri Iskandar, Malaysia
| | - Man Kee Lam
- HICoE-Centre for Biofuel and Biochemical Research, Institute of Self-Sustainable Building, Universiti Teknologi PETRONAS, Seri Iskandar, Malaysia; Chemical Engineering Department, Universiti Teknologi PETRONAS, Seri Iskandar, Malaysia
| | - Yeek-Chia Ho
- Civil and Environmental Engineering Department, Universiti Teknologi PETRONAS, Seri Iskandar, Malaysia; Centre for Urban Resource Sustainability, Institute of Self-Sustainable Building, Universiti Teknologi PETRONAS, Seri Iskandar, Malaysia
| | - Hui Suan Ng
- Faculty of Applied Sciences, UCSI University, No. 1, Jalan Menara Gading, UCSI Heights, Cheras, 56000 Kuala Lumpur, Malaysia
| | - Heli Siti Halimatul Munawaroh
- Study Program of Chemistry, Department of Chemistry Education, Universitas Pendidikan Indonesia, Jalan Dr. Setiabudi 229, Bandung 40154, West Java, Indonesia
| | - Pau Loke Show
- Department of Chemical and Environmental Engineering, Faculty of Science and Engineering, University of Nottingham Malaysia, Jalan Broga, 43500 Semenyih, Selangor Darul Ehsan, Malaysia.
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11
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Ke X, Sun JC, Liu C, Ying JM, Zou SP, Xue YP, Zheng YG. Fed-in-situ biological reduction treatment of food waste via high-temperature-resistant oil degrading microbial consortium. BIORESOURCE TECHNOLOGY 2021; 340:125635. [PMID: 34339998 DOI: 10.1016/j.biortech.2021.125635] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Revised: 07/16/2021] [Accepted: 07/18/2021] [Indexed: 06/13/2023]
Abstract
This study aims to construct a high-temperature-resistant microbial consortium to effectively degrade oily food waste by Fed-in-situ biological reduction treatment (FBRT). Oil degrading bacteria were screened under thermophilic conditions of mineral salt medium with increased oil content. The oil degradation and emulsification ability of each stain was evaluated and their synergetic improvement was further confirmed. Consortium of Bacillus tequilensis, Bacillus licheniformis, Bacillus sonorensis and Ureibacillus thermosphaericus was selected and applicated as bacterial agents in FBRT under 55 °C. Changes in pH, moisture, bacterial community and key components of food waste were monitored for 5 days during processing. Facilitated by the bacterial consortium, FBRT gave superior total mass reduction (86.61 ± 0.58% vs. 67.25 ± 1.63%) and non-volatile solids reduction (65.91 ± 1.53% vs. 28.53 ± 2.29%) compared with negative control, the feasibility and efficiency of present FBRT providing a promising in-situ disposal strategy for rapid reduction of oily food waste.
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Affiliation(s)
- Xia Ke
- Engineering Research Center of Bioconversion and Biopurification of Ministry of Education, Zhejiang University of Technology, Hangzhou 310014, PR China; Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310014, PR China
| | - Jia-Cheng Sun
- Engineering Research Center of Bioconversion and Biopurification of Ministry of Education, Zhejiang University of Technology, Hangzhou 310014, PR China; Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310014, PR China
| | - Cong Liu
- Engineering Research Center of Bioconversion and Biopurification of Ministry of Education, Zhejiang University of Technology, Hangzhou 310014, PR China; Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310014, PR China
| | - Jia-Min Ying
- Engineering Research Center of Bioconversion and Biopurification of Ministry of Education, Zhejiang University of Technology, Hangzhou 310014, PR China; Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310014, PR China
| | - Shu-Ping Zou
- Engineering Research Center of Bioconversion and Biopurification of Ministry of Education, Zhejiang University of Technology, Hangzhou 310014, PR China; Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310014, PR China
| | - Ya-Ping Xue
- Engineering Research Center of Bioconversion and Biopurification of Ministry of Education, Zhejiang University of Technology, Hangzhou 310014, PR China; Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310014, PR China.
| | - Yu-Guo Zheng
- Engineering Research Center of Bioconversion and Biopurification of Ministry of Education, Zhejiang University of Technology, Hangzhou 310014, PR China; Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310014, PR China
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12
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Wang K, Yun S, Xing T, Li B, Abbas Y, Liu X. Binary and ternary trace elements to enhance anaerobic digestion of cattle manure: Focusing on kinetic models for biogas production and digestate utilization. BIORESOURCE TECHNOLOGY 2021; 323:124571. [PMID: 33388599 DOI: 10.1016/j.biortech.2020.124571] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Revised: 12/14/2020] [Accepted: 12/15/2020] [Indexed: 06/12/2023]
Abstract
The effects of binary and ternary trace elements (TEs) (Fe/Co, Fe/Ni, and Fe/Co/Ni) on the anaerobic digestion (AD) of cattle manure were investigated using kinetic models (first-order, logistic, modified Gompertz, and Coats-Redfern) and experimental measurements. Binary and ternary TEs can significantly improve the biogas production rate and yield potential. The deviation between the predicted and measured data for biogas yield with logistic model (2.1%-5.3%) and modified Gompertz model (0.32%-2.9%) was smaller than that with first-order kinetic model (6.9%-9.9%). The Coats-Redfern model fitting indicated that the activation energy of digestates with trace elements during pyrolysis was reduced by 3.9%-26.2% compared with the control group. Meanwhile, digestates with TEs showed remarkable fertility (5.72%-5.95%). The combination of kinetic models and experimental measurements can effectively quantify the effect of TEs on AD performance and provide an informed choice for industrial production.
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Affiliation(s)
- Kaijun Wang
- Functional Materials Laboratory (FML), School of Materials Science and Engineering, Xi'an University of Architecture and Technology, Xi'an, Shaanxi 710055, China; College of Science, Xi'an University of Architecture and Technology, Xi'an, Shaanxi 710055, China
| | - Sining Yun
- Functional Materials Laboratory (FML), School of Materials Science and Engineering, Xi'an University of Architecture and Technology, Xi'an, Shaanxi 710055, China.
| | - Tian Xing
- Functional Materials Laboratory (FML), School of Materials Science and Engineering, Xi'an University of Architecture and Technology, Xi'an, Shaanxi 710055, China
| | - Bingjie Li
- Functional Materials Laboratory (FML), School of Materials Science and Engineering, Xi'an University of Architecture and Technology, Xi'an, Shaanxi 710055, China
| | - Yasir Abbas
- Functional Materials Laboratory (FML), School of Materials Science and Engineering, Xi'an University of Architecture and Technology, Xi'an, Shaanxi 710055, China
| | - Xinming Liu
- Functional Materials Laboratory (FML), School of Materials Science and Engineering, Xi'an University of Architecture and Technology, Xi'an, Shaanxi 710055, China
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13
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Zhou SP, Zhou HY, Xia SN, Ying JM, Ke X, Zou SP, Xue YP, Zheng YG. Efficient bio-degradation of food waste through improving the microbial community compositions by newly isolated Bacillus strains. BIORESOURCE TECHNOLOGY 2021; 321:124451. [PMID: 33276208 DOI: 10.1016/j.biortech.2020.124451] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Revised: 11/21/2020] [Accepted: 11/23/2020] [Indexed: 06/12/2023]
Abstract
This study aims to screen high-degradability strains and develop a novel microbial agent for efficient food waste degradation. The effects of the novel microbial agent on organic matter degradation, enzyme activity, and bacterial succession during the in-situ reduction of food waste were evaluated and compared with other two microbial agents previously developed. Results showed that the novel agent containing four Bacillus strains received maximum organic degradation rates, volatile solid removal (46.91%) and total mass reduction (76.16%). Pyrosequencing analysis revealed that there was a significant difference in the microbial community structure of the matrix among the three biodegradation systems, and the novel agent greatly improved the stability of in-situ reduction process that Bacillus was the dominant genus (>98%) since day 4. These results indicated that the inoculant containing only Bacillus was more stable and cost-effective in FW in-situ reduction.
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Affiliation(s)
- Shi-Peng Zhou
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310014, China; Engineering Research Center of Bioconversion and Biopurification of Ministry of Education, Zhejiang University of Technology, Hangzhou 310014, China
| | - Hai-Yan Zhou
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310014, China; Engineering Research Center of Bioconversion and Biopurification of Ministry of Education, Zhejiang University of Technology, Hangzhou 310014, China
| | - Shu-Ning Xia
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310014, China; Engineering Research Center of Bioconversion and Biopurification of Ministry of Education, Zhejiang University of Technology, Hangzhou 310014, China
| | - Jia-Min Ying
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310014, China; Engineering Research Center of Bioconversion and Biopurification of Ministry of Education, Zhejiang University of Technology, Hangzhou 310014, China
| | - Xia Ke
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310014, China; Engineering Research Center of Bioconversion and Biopurification of Ministry of Education, Zhejiang University of Technology, Hangzhou 310014, China
| | - Shu-Ping Zou
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310014, China; Engineering Research Center of Bioconversion and Biopurification of Ministry of Education, Zhejiang University of Technology, Hangzhou 310014, China
| | - Ya-Ping Xue
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310014, China; Engineering Research Center of Bioconversion and Biopurification of Ministry of Education, Zhejiang University of Technology, Hangzhou 310014, China.
| | - Yu-Guo Zheng
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310014, China; Engineering Research Center of Bioconversion and Biopurification of Ministry of Education, Zhejiang University of Technology, Hangzhou 310014, China
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