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Kriswantoro JA, Pan KY, Chu CY. Co-digestion approach for enhancement of biogas production by mixture of untreated napier grass and industrial hydrolyzed food waste. Front Bioeng Biotechnol 2024; 11:1269727. [PMID: 38260741 PMCID: PMC10801417 DOI: 10.3389/fbioe.2023.1269727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2023] [Accepted: 12/20/2023] [Indexed: 01/24/2024] Open
Abstract
The co-digestion of untreated Napier grass (NG) and industrial hydrolyzed food waste (FW) was carried out in the batch reactor to investigate the effect of substrate ratios on biogas production performance. Two-stage anaerobic digestion was performed with an initial substrate concentration of 5 g VSadded/L and a Food to Microorganism Ratio (F/M) of 0.84. The 1:1 ratio of the NG and FW showed the optimum performances on biogas production yield with a value of 1,161.33 mL/g VSadded after 60 days of digestion. This was followed by the data on methane yield and concentration were 614.37 mL/g VSadded and 67.29%, respectively. The results were similar to the simulation results using a modified Gompertz model, which had a higher potential methane production and maximum production rate, as well as a shorter lag phase and a coefficient of determination of 0.9945. These findings indicated that the co-digestion of Napier grass and hydrolyzed food waste can enhance biogas production in two-stage anaerobic digestion.
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Affiliation(s)
- Jayen Aris Kriswantoro
- Ph.D. Program of Mechanical and Aeronautical Engineering, Feng Chia University, Taichung, Taiwan
- Institute of Green Products, Feng Chia University, Taichung, Taiwan
- School of Life Sciences and Technology, Bandung Institute of Technology, Bandung, Indonesia
| | - Kuan-Yin Pan
- Institute of Green Products, Feng Chia University, Taichung, Taiwan
- Department of Materials Science and Engineering, College of Engineering and Science, Feng Chia University, Taichung, Taiwan
| | - Chen-Yeon Chu
- Ph.D. Program of Mechanical and Aeronautical Engineering, Feng Chia University, Taichung, Taiwan
- Institute of Green Products, Feng Chia University, Taichung, Taiwan
- National Research Council of Italy, Institute of Atmospheric Pollution Research, Rome, Italy
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2
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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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3
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Liu C, Li S, Niu H, Yang H, Tan J, Zhang J, Ren L, Yan B. Effect of Lipid Type on the Acidogenic Performance of Food Waste. FERMENTATION-BASEL 2023. [DOI: 10.3390/fermentation9040348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
Abstract
Due to its high lipid content and intricate constitution, food waste poses a considerable challenge for biotreatment. This research aims to investigate the potential influence of diverse lipid species on anaerobic fermentation, induced by the varying dietary patterns observed in distinct regions. The investigation involved incorporating 5% (w/w) of beef tallow, mutton fat, soybean oil, peanut oil, and rapeseed oil, separately, into simulated food waste, and subjected it to batch mode acidogenic fermentation. The inclusion of unsaturated fatty acids resulted in a redirection of the metabolic pathway from the lactic acid type to the ethanol, acetic acid, and butyric acid types. The succession of the acidogenic metabolic pathway was highly correlated with the lipid types; beef tallow, mutton fat, soybean oil, and peanut oil delayed the metabolic process by 1, 2, 3, and 8 d, respectively, whereas rapeseed oil accelerated it by 2 d. The lipids contained within the food waste did not facilitate the buildup of soluble substances, resulting in a decrease of 14.0~59.7%. Notwithstanding, valeric acid was exclusively generated during the beef tallow and peanut oil treatments, whereas the production of lactic acid in peanut oil showed a 35.9% increase in comparison to the control.
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Affiliation(s)
- Chao Liu
- College of Environment & Ecology, Hunan Agricultural University, Changsha 410128, China
| | - Sheng Li
- College of Environment & Ecology, Hunan Agricultural University, Changsha 410128, China
| | - Hongyu Niu
- College of Environment & Ecology, Hunan Agricultural University, Changsha 410128, China
| | - Haijun Yang
- College of Environment & Ecology, Hunan Agricultural University, Changsha 410128, China
| | - Ju Tan
- Changsha Environmental Monitoring Center Station, Changsha 410001, China
| | - Jiachao Zhang
- College of Environment & Ecology, Hunan Agricultural University, Changsha 410128, China
| | - Liheng Ren
- College of Environment & Ecology, Hunan Agricultural University, Changsha 410128, China
| | - Binghua Yan
- College of Environment & Ecology, Hunan Agricultural University, Changsha 410128, China
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4
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Zara S, Rihani R, Blel W, Bentahar F. Anaerobic co-digestion of dairy raw by-products and Ulva sp. macroalgae: effect of organic and inorganic additives. CR CHIM 2021. [DOI: 10.5802/crchim.74] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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5
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Zhu QL, Wu B, Pisutpaisal N, Wang YW, Ma KD, Dai LC, Qin H, Tan FR, Maeda T, Xu YS, Hu GQ, He MX. Bioenergy from dairy manure: technologies, challenges and opportunities. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 790:148199. [PMID: 34111785 DOI: 10.1016/j.scitotenv.2021.148199] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Revised: 05/27/2021] [Accepted: 05/28/2021] [Indexed: 06/12/2023]
Abstract
Dairy manure (DM) is a kind of cheap cellulosic biomass resource which includes lignocellulose and mineral nutrients. Random stacks not only leads damage to the environment, but also results in waste of natural resources. The traditional ways to use DM include returning it to the soil or acting as a fertilizer, which could reduce environmental pollution to some extent. However, the resource utilization rate is not high and socio-economic performance is not utilized. To expand the application of DM, more and more attention has been paid to explore its potential as bioenergy or bio-chemicals production. This article presented a comprehensive review of different types of bioenergy production from DM and provided a general overview for bioenergy production. Importantly, this paper discussed potentials of DM as candidate feedstocks not only for biogas, bioethanol, biohydrogen, microbial fuel cell, lactic acid, and fumaric acid production by microbial technology, but also for bio-oil and biochar production through apyrolysis process. Additionally, the use of manure for replacing freshwater or nutrients for algae cultivation and cellulase production were also discussed. Overall, DM could be a novel suitable material for future biorefinery. Importantly, considerable efforts and further extensive research on overcoming technical bottlenecks like pretreatment, the effective release of fermentable sugars, the absence of robust organisms for fermentation, energy balance, and life cycle assessment should be needed to develop a comprehensive biorefinery model.
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Affiliation(s)
- Qi-Li Zhu
- Biomass Energy Technology Research Centre, Key Laboratory of Development and Application of Rural Renewable Energy (Ministry of Agriculture and Rural Affairs), Biogas Institute of Ministry of Agriculture and Rural Affairs, Section 4-13, Renmin South Road, Chengdu 610041, PR China; Department of Biological Functions Engineering, Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology, 2-4 Hibikino,Wakamatsu, Kitakyushu 808-0196, Japan.
| | - Bo Wu
- Biomass Energy Technology Research Centre, Key Laboratory of Development and Application of Rural Renewable Energy (Ministry of Agriculture and Rural Affairs), Biogas Institute of Ministry of Agriculture and Rural Affairs, Section 4-13, Renmin South Road, Chengdu 610041, PR China.
| | - Nipon Pisutpaisal
- The Research and Technology Center for Renewable Products and Energy, King Mongkut's University of Technology North Bangkok, Bangkok 10800, Thailand.
| | - Yan-Wei Wang
- Biomass Energy Technology Research Centre, Key Laboratory of Development and Application of Rural Renewable Energy (Ministry of Agriculture and Rural Affairs), Biogas Institute of Ministry of Agriculture and Rural Affairs, Section 4-13, Renmin South Road, Chengdu 610041, PR China.
| | - Ke-Dong Ma
- College of Environment and Resources, Dalian Minzu University, 18 Liaohe West Road, Dalian 116600, PR China
| | - Li-Chun Dai
- Biomass Energy Technology Research Centre, Key Laboratory of Development and Application of Rural Renewable Energy (Ministry of Agriculture and Rural Affairs), Biogas Institute of Ministry of Agriculture and Rural Affairs, Section 4-13, Renmin South Road, Chengdu 610041, PR China.
| | - Han Qin
- Biomass Energy Technology Research Centre, Key Laboratory of Development and Application of Rural Renewable Energy (Ministry of Agriculture and Rural Affairs), Biogas Institute of Ministry of Agriculture and Rural Affairs, Section 4-13, Renmin South Road, Chengdu 610041, PR China.
| | - Fu-Rong Tan
- Biomass Energy Technology Research Centre, Key Laboratory of Development and Application of Rural Renewable Energy (Ministry of Agriculture and Rural Affairs), Biogas Institute of Ministry of Agriculture and Rural Affairs, Section 4-13, Renmin South Road, Chengdu 610041, PR China.
| | - Toshinari Maeda
- Department of Biological Functions Engineering, Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology, 2-4 Hibikino,Wakamatsu, Kitakyushu 808-0196, Japan.
| | - Yan-Sheng Xu
- Biomass Energy Technology Research Centre, Key Laboratory of Development and Application of Rural Renewable Energy (Ministry of Agriculture and Rural Affairs), Biogas Institute of Ministry of Agriculture and Rural Affairs, Section 4-13, Renmin South Road, Chengdu 610041, PR China.
| | - Guo-Quan Hu
- Biomass Energy Technology Research Centre, Key Laboratory of Development and Application of Rural Renewable Energy (Ministry of Agriculture and Rural Affairs), Biogas Institute of Ministry of Agriculture and Rural Affairs, Section 4-13, Renmin South Road, Chengdu 610041, PR China.
| | - Ming-Xiong He
- Biomass Energy Technology Research Centre, Key Laboratory of Development and Application of Rural Renewable Energy (Ministry of Agriculture and Rural Affairs), Biogas Institute of Ministry of Agriculture and Rural Affairs, Section 4-13, Renmin South Road, Chengdu 610041, PR China; Chengdu National Agricultural Science and Technology Center, Chengdu, PR China.
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6
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Ambaye TG, Rene ER, Nizami AS, Dupont C, Vaccari M, van Hullebusch ED. Beneficial role of biochar addition on the anaerobic digestion of food waste: A systematic and critical review of the operational parameters and mechanisms. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 290:112537. [PMID: 33865159 DOI: 10.1016/j.jenvman.2021.112537] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Revised: 03/14/2021] [Accepted: 03/31/2021] [Indexed: 05/22/2023]
Abstract
The generation of huge amounts of food waste due to the increasing population is a serious global issue. The inadequate management of food waste and lack of proper handling approaches have created adverse negative impacts on the environment and the society. The use of traditional disposal (i.e. landfilling) and treatment (i.e. incineration and composting) methods are not considered to be efficient for managing food waste. Thus, anaerobic digestion (AD) has proven to be promising and cost-effective, as an alternative technology, for digesting and converting food waste into renewable energy and useful chemicals. However, mono-digestion of food waste suffers from process inhibition and instability which limit its efficiency. Adding biochar that has high buffering capacity and ensures optimum nutrient balance was shown to enhance biogas/methane production yields. This review reports on the physicochemical characteristics of food waste, the existing problems of food waste treatment in AD as well as the role of biochar amendments on the optimization of critical process parameters and its action mechanisms in AD, which could be a promising means of improving the AD performance. Also, this review provides insights regarding the selection of the desired/appropriate biochar characteristics, i.e. depending on the source of the feedstock and the pyrolysis temperature, and its role in enhancing biogas production and preventing the problem of process instability in the AD system. Finally, this review paper highlights the economic and environmental challenges as well as the future perspectives concerning the application of biochar amendments in AD.
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Affiliation(s)
- Teklit Gebregiorgis Ambaye
- Department of Civil, Environmental, Architectural Engineering and Mathematics, University of Brescia, Via Branze 43, 25123, Brescia, Italy; Department of Water Supply, Sanitation and Environmental Engineering, IHE Delft Institute for Water Education, Westvest 7, P.O. Box 3015, 2601 DA, Delft, the Netherlands; College of Natural and Computational Sciences, Department of Chemistry, Mekelle University, P.O. Box 231, Mekelle, Ethiopia.
| | - Eldon R Rene
- Department of Water Supply, Sanitation and Environmental Engineering, IHE Delft Institute for Water Education, Westvest 7, P.O. Box 3015, 2601 DA, Delft, the Netherlands.
| | - Abdul-Sattar Nizami
- Sustainable Development Study Centre, Government College University, Lahore, 54000, Pakistan
| | - Capucine Dupont
- Department of Water Supply, Sanitation and Environmental Engineering, IHE Delft Institute for Water Education, Westvest 7, P.O. Box 3015, 2601 DA, Delft, the Netherlands
| | - Mentore Vaccari
- Department of Civil, Environmental, Architectural Engineering and Mathematics, University of Brescia, Via Branze 43, 25123, Brescia, Italy
| | - Eric D van Hullebusch
- Université de Paris, Institut de Physique Du Globe de Paris, CNRS, UMR 7154, F-75238, Paris, France
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7
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Solid-state anaerobic co-digestion of organic fraction of municipal waste and sawdust: impact of co-digestion ratio, inoculum-to-substrate ratio, and total solids. Biodegradation 2021; 32:299-312. [PMID: 33842986 DOI: 10.1007/s10532-021-09937-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Accepted: 03/21/2021] [Indexed: 10/21/2022]
Abstract
Municipal solid waste contains mainly organic wastes that can be a good source for anaerobic digestion. Solid-state anaerobic digestion is an affordable and suitable technique to mitigate the organic fraction of municipal solid waste (OFMSW). However, as the organic loading of OFMSW is high, co-digestion with other materials can improve the system's performance. This study aimed to investigate the performance of the co-digestion of OFMSW and sawdust and study the parameters affecting its performance. Based on the experiments, the optimum sawdust/OFMSW ratio was achieved 1:2 with the methane production of 0.3 L/g VS. In addition, the inoculum-to-substrate ration (I/S) was investigated at 1:4, 1:2, 1:1, 2:1 ratios. The best result was obtained at 2:1 ratio with a total methane yield of 0.28 L/g VS. The results also indicated that I/S ratios less than 1:1 led to fatty acid accumulation and acidic pH condition. The effect of total solids content on the co-digestion process was also examined in this study. According to the results, as the total solids increased, the biomethane yield decreased while the biogas content increased.
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8
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Batch Anaerobic Co-Digestion and Biochemical Methane Potential Analysis of Goat Manure and Food Waste. ENERGIES 2021. [DOI: 10.3390/en14071952] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The improper management of goat manure from concentrated goat feeding operations and food waste leads to the emission of greenhouse gasses and water pollution in the US. The wastes were collected from the International Goat Research Center and a dining facility at Prairie View A&M University. The biochemical methane potential of these two substrates in mono and co-digestion at varied proportions was determined in triplicates and processes were evaluated using two nonlinear regression models. The experiments were conducted at 36 ± 1 °C with an inoculum to substrate ratio of 2.0. The biomethane was measured by water displacement method (pH 10:30), absorbing carbon dioxide. The cumulative yields in goat manure and food waste mono-digestions were 169.7 and 206.0 mL/gVS, respectively. Among co-digestion, 60% goat manure achieved the highest biomethane yields of 380.5 mL/gVS. The biodegradabilities of 33.5 and 65.7% were observed in goat manure and food waste mono-digestions, while 97.4% were observed in the co-digestion having 60% goat manure. The modified Gompertz model is an excellent fit in simulating the anaerobic digestion of food waste and goat manure substrates. These findings provide useful insights into the co-digestion of these substrates.
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9
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Jing R, Liu T, Tian X, Rezaei H, Yuan C, Qian J, Zhang Z. Sustainable strategy for municipal solid waste disposal in Hong Kong: current practices and future perspectives. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:28670-28678. [PMID: 32424753 DOI: 10.1007/s11356-020-09096-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Accepted: 04/28/2020] [Indexed: 06/11/2023]
Abstract
Hong Kong (HK) is confronted by increasing problems of solid waste disposal, as it is an overpopulated city with limited land resources. Currently, solid waste disposal mainly relies on three landfills located in the New Territories. However, the current waste treatment facilities and policies cannot appropriately control and manage increments of solid waste. The primary reason is the increased amount of municipal solid waste (MSW) caused by the growth of the population and the economy, with food waste accounting for the largest proportion of MSW in HK. The secondary reason is that the capacity of existing landfills will be exhausted in the near future as the level of waste generated continues to grow. To deal with these problems, in this paper, we propose five approaches with the aim of identifying the most sustainable strategy for efficient solid waste disposal in HK: a food waste recycling program; an MSW charging scheme; the implementation of incineration plants (i.e., waste to energy); black soldier fly bioconversion and a waste trading scheme; and black soldier fly bioconversion and a hybrid anaerobic digestion system. This is followed by a detailed demonstration of each approach, particularly focusing on the benefits, limitations, and implementation of each in the case of HK. The results of this study may shed light on how to effectively and sustainably manage the increasing amount of solid waste in HK.
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Affiliation(s)
- Ran Jing
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou, 510642, People's Republic of China
- Department of Civil and Environmental Engineering, University of Maryland, College Park, MD, 20742, USA
| | - Tongzhou Liu
- Harbin Institute of Technology (Shenzhen), Shenzhen, 518055, China
| | - Xin Tian
- Lancaster Environment Center, Lancaster University, Graduate College, Lancaster, LA2 0PF, UK
| | - Hamidreza Rezaei
- Department of Civil and Environmental Engineering, University of Maryland, College Park, MD, 20742, USA
| | - Chen Yuan
- Department of Civil and Environmental Engineering, University of Maryland, College Park, MD, 20742, USA
| | - Jin Qian
- Research and Development Institute in Shenzhen & School of Natural and Applied Sciences, Northwestern Polytechnical University, Xi'an, People's Republic of China.
| | - Zhen Zhang
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou, 510642, People's Republic of China.
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10
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Johannesson GH, Crolla A, Lauzon JD, Gilroyed BH. Estimation of biogas co-production potential from liquid dairy manure, dissolved air flotation waste (DAF) and dry poultry manure using biochemical methane potential (BMP) assay. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2020. [DOI: 10.1016/j.bcab.2020.101605] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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11
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Rahman M, Saha CK, Feng L, Møller HB, Alam M. Anaerobic digestion of agro-industrial wastes of Bangladesh: Influence of total solids content. ACTA ACUST UNITED AC 2019. [DOI: 10.1016/j.eaef.2019.10.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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12
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Abstract
Microbial electrosynthesis (MES) biogas upgrading is done via reduction of carbon dioxide to methane through electroactive microbial catalysis. The baseline MES mode of operation showed about a 39% increase in the methane production rate compared to the open circuit mode of operation. MES is capable of producing acetic acid at relatively more negative potential (−0.80 to –0.90 V vs. Standard Hydrogen Electrode (SHE)) than the potential at which it produces methane (−0.65 V vs. SHE). The optimum pH for enhancing the electroactive acetogens is found to be around 6.8–7.0 while a pH of around 7.0–7.5 enhances the electroactive methanogens performance. The biocathode adaptation test reveals that 45% of the methane was produced through the electrochemical pathway with a coulombic efficiency of 100% while maintaining heterotrophic efficiency above 99%.
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13
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Burgess ER, Geden CJ. Larvicidal potential of the polyol sweeteners erythritol and xylitol in two filth fly species. JOURNAL OF VECTOR ECOLOGY : JOURNAL OF THE SOCIETY FOR VECTOR ECOLOGY 2019; 44:11-17. [PMID: 31124230 DOI: 10.1111/jvec.12324] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Accepted: 10/30/2018] [Indexed: 06/09/2023]
Abstract
The house fly, Musca domestica (L.) (Diptera: Muscidae), and the stable fly, Stomoxys calcitrans (L.) (Diptera: Muscidae), are two filth flies responsible for significant economic losses in animal production. Although some chemical control products target adults of both species, differences in mouthpart morphology and behavior necessitates distinct modalities for each. For these reasons, larvicides are an attractive means of chemical control. We assessed the potential of the polyol sweeteners erythritol and xylitol as larvicides to the house fly and stable fly. LC50 values of erythritol against 2nd instar larvae were 34.94 mg/g media (house fly) and 22.10 mg/g media (stable fly). For xylitol, LC50 values were 74.91 mg/g media (house fly) and 41.58 mg/g media (stable fly). When given a choice, neither species showed a preference for ovipositing in media treated with either sweetener at various concentrations or in media without sweetener. Significantly lower development from egg to adult was observed when the 2nd instar LC50 equivalent of each sweetener was present in the media compared to controls. Erythritol and xylitol both have larvicidal qualities, however their effective concentrations would necessitate creative product formulation and deployment methods to control all stages of developing flies.
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Affiliation(s)
- Edwin R Burgess
- Department of Biological Sciences, Northern Illinois University, DeKalb, IL 60115, U.S.A
| | - Christopher J Geden
- USDA, ARS, Center for Medical, Agricultural, and Veterinary Entomology, Gainesville, FL 32607, U.S.A
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14
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Bioelectrochemical CO2 Reduction to Methane: MES Integration in Biogas Production Processes. APPLIED SCIENCES-BASEL 2019. [DOI: 10.3390/app9061056] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Anaerobic digestion (AD) is a widely used technique to treat organic waste and produce biogas. This article presents a practical approach to increase biogas yield of an AD system using a microbial electrosynthesis system (MES). The biocathode in MES reduces carbon dioxide with the supplied electrons and protons (H+) to form methane. We demonstrate that the MES is able to produce biogas with over 90% methane when fed with reject water obtained from a local wastewater treatment plant. The optimised cathode potential was observed in the range of −0.70 V to −0.60 V and optimised feed pH was around 7.0. With autoclaved feed, these conditions allowed methane yields of about 9.05 mmol/L(reactor)-day. A control experiment was then carried out to make a comparison between open circuit and MES methanogenesis. The highest methane yield of about 22.1 mmol/L(reactor)-day was obtained during MES operation that performed 10–15% better than the open circuit mode of operation. We suggest and describe an integrated AD-MES system, by installing MES in the reject water loop, as a novel approach to improve the efficiency and productivity of existing waste/wastewater treatment plants.
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15
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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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Enhancing Anaerobic Digestion: The Effect of Carbon Conductive Materials. C — JOURNAL OF CARBON RESEARCH 2018. [DOI: 10.3390/c4040059] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Anaerobic digestion is a well-known technology which has been extensively studied to improve its performance and yield biogas from substrates. The application of different types of pre-treatments has led to an increase in biogas production but also in global energy demand. However, in recent years the use of carbon conductive materials as supplement for this process has been studied resulting in an interesting way for improving the performance of anaerobic digestion without greatly affecting its energy demand. This review offers an introduction to this interesting approach and covers the different experiences performed on the use of carbon conductive materials proposing it as a feasible alternative for the production of energy from biomass, considering also the integration of anaerobic digestion and thermal valorisation.
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The Effect of Digested Manure on Biogas Productivity and Microstructure Evolution of Corn Stalks in Anaerobic Cofermentation. BIOMED RESEARCH INTERNATIONAL 2018; 2018:5214369. [PMID: 29850531 PMCID: PMC5937593 DOI: 10.1155/2018/5214369] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Accepted: 03/13/2018] [Indexed: 11/24/2022]
Abstract
The anaerobic fermentation of crop straw and animal wastes is increasingly used for the biogas and green energy generation, as well as reduction of the environmental pollution. The anaerobic cofermentation of corn stalks inoculated by cow dung was found to achieve higher biogas production and cellulose biodegradation. In this study, the effect of mixing corn stalks with cow dung at five different fermentation stages (0, 7, 15, 23, and 31 days of the total fermentation cycle of 60 days) on the further cofermentation process was explored, in order to optimize the corn straw utilization rate and biogas production capacity. In addition, the straw microstructure evolution was investigated by the SEM and XRD methods to identify the optimal conditions for the straw biodegradation process enhancement. The five test groups exhibited nearly identical total biogas productivity values but strongly differed by daily biogas yields (the maximal biogas generation rate being 524.3 ml/d). Based on the degradation characteristics of total solids (TS), volatile solids (VS), and lignocellulose, groups #1 and #3 (0 and 15 days) had the most significant degradation rates of VS (43.73%) and TS (42.07%), respectively, while the largest degradation rates of cellulose (62.70%) and hemicellulose (50.49%) were observed in group #4 (23 days) and group #1 (0 days), respectively. The SEM analysis revealed strong microstructural changes in corn stalks after fermentation manifested by multiple cracks and striations, while the XRD results proved the decrease in peak intensity of cellulose 〈002〉 crystal surface and the reduced crystallinity after cofermentation. The results of this study are assumed to be quite instrumental to the further optimization of the corn stalk anaerobic digestion by inoculation with digested manure for lignocellulose degradation enhancement and biogas productivity improvement.
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Zhou M, Yan B, Wong JWC, Zhang Y. Enhanced volatile fatty acids production from anaerobic fermentation of food waste: A mini-review focusing on acidogenic metabolic pathways. BIORESOURCE TECHNOLOGY 2018; 248:68-78. [PMID: 28693950 DOI: 10.1016/j.biortech.2017.06.121] [Citation(s) in RCA: 262] [Impact Index Per Article: 43.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2017] [Revised: 06/21/2017] [Accepted: 06/22/2017] [Indexed: 05/11/2023]
Abstract
Recently, efficient disposal of food waste (FW) with potential resource recovery has attracted great attentions. Due to its easily biodegradable nature, rich nutrient availability and high moisture content, FW is regarded as favorable substrate for anaerobic digestion (AD). Both waste disposal and energy recovery can be fulfilled during AD of FW. Volatile fatty acids (VFAs) which are the products of the first-two stages of AD, are widely applied in chemical industry as platform chemicals recently. Concentration and distribution of VFAs is the result of acidogenic metabolic pathways, which can be affected by the micro-environment (e.g. pH) in the digester. Hence, the clear elucidation of the acidogenic metabolic pathways is essential for optimization of acidogenic process for efficient product recovery. This review summarizes major acidogenic metabolic pathways and regulating strategies for enhancing VFAs recovery during acidogenic fermentation of FW.
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Affiliation(s)
- Miaomiao Zhou
- Lab of Waste Valorization and Water Reuse, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, 189 Songling Road, Laoshan District, Qingdao 266101, PR China; University of Chinese Academy of Sciences, No.19A Yuquan Road, Beijing 100049, PR China
| | - Binghua Yan
- Lab of Waste Valorization and Water Reuse, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, 189 Songling Road, Laoshan District, Qingdao 266101, PR China.
| | - Jonathan W C Wong
- Sino-Forest Applied Research Centre for Pearl River Delta Environment, Department of Biology, Hong Kong Baptist University, PR China
| | - Yang Zhang
- Lab of Waste Valorization and Water Reuse, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, 189 Songling Road, Laoshan District, Qingdao 266101, PR China
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Lansing S, Maile-Moskowitz A, Eaton A. Waste treatment and energy production from small-scale wastewater digesters. BIORESOURCE TECHNOLOGY 2017; 245:801-809. [PMID: 28926912 DOI: 10.1016/j.biortech.2017.08.215] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Revised: 08/30/2017] [Accepted: 08/31/2017] [Indexed: 06/07/2023]
Abstract
Three tubular anaerobic digestion (AD) systems were installed in Haiti to treat black water (toilet-based wastewater), including a three cell 36m3 clinic digester (CD), a two cell 2m3 hotel digester (HD), and a three-cell 3m3 farm digester (FD) for worker use. During digestion, total coliforms were reduced by 99.1%, E. coli by 98.5%, and chemical oxygen demand (COD) by 93.6%. Nutrients in the effluent averaged 99.4mg/L NH4+ and 10.6mg/L PO42-, producing an effective organic fertilizer. Average biogas production in CD was 108L/d, with 65.4% CH4. Survey participants (n=573) were willing to pay $0.10-0.30 per use for sanitation facilities. Seventy-two percent of the rural population surveyed in Cange, Haiti lacked access to improved sanitation due to financial constraints. The economic analysis calculated an investment cost for a shared toilet AD systems of $16-$47 (USD) per person based on daily use at design capacity.
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Affiliation(s)
- Stephanie Lansing
- University of Maryland, Department of Environmental Science and Technology, College Park, MD, USA.
| | - Ayella Maile-Moskowitz
- University of Maryland, Department of Environmental Science and Technology, College Park, MD, USA
| | - Alexander Eaton
- Instituto Internacional de Recursos Renovables AC (IRRI), Mexico City, Mexico
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Zhou M, Zhou J, Tan M, Du J, Yan B, Wong JWC, Zhang Y. Enhanced carboxylic acids production by decreasing hydrogen partial pressure during acidogenic fermentation of glucose. BIORESOURCE TECHNOLOGY 2017; 245:44-51. [PMID: 28892705 DOI: 10.1016/j.biortech.2017.08.152] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Revised: 08/22/2017] [Accepted: 08/23/2017] [Indexed: 05/27/2023]
Abstract
In this study, the effect of reduced hydrogen partial pressure (PH2) on the generation of carboxylic acids from acidogenic fermentation of glucose was investigated. Three strategies were applied to reduce PH2: headspace removal (T1), CO2 sparging (T2) and H2:CO2 (80:20) sparging (T3). Results showed that the production of carboxylic acids in T1-T3 were 10.21, 11.64 and 12.71g/L, respectively, which were 1.04, 1.19 and 1.30-fold of that in the control (T4). The composition of carboxylic acids changed significantly in T3 with enhancement of homoacetogenesis, as more acetate and butyrate were produced comparing to the control. In addition, decreasing PH2 led to more carbon flow to carboxylic acids. Species of Clostridium became dominant in treatment T3, resulting in the shift of metabolic pathways. This study demonstrated that decreasing PH2 could increase the production of carboxylic acids, especially under the strategy of enhancing homoacetogenesis.
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Affiliation(s)
- Miaomiao Zhou
- Lab of Waste Valorization and Water Reuse, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jun Zhou
- College of Biotechnology and Pharmaceutical Engineering, Nanjing TECH University, Nanjing 211816, China
| | - Ming Tan
- Lab of Waste Valorization and Water Reuse, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China
| | - Juan Du
- Lab of Waste Valorization and Water Reuse, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China
| | - Binghua Yan
- Lab of Waste Valorization and Water Reuse, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China.
| | - Jonathan W C Wong
- Sino-Forest Applied Research Centre for Pearl River Delta Environment, Department of Biology, Hong Kong Baptist University, Hong Kong Special Administrative Region
| | - Yang Zhang
- Lab of Waste Valorization and Water Reuse, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China
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Lu X, Jin W, Xue S, Wang X. Effects of waste sources on performance of anaerobic co-digestion of complex organic wastes: taking food waste as an example. Sci Rep 2017; 7:15702. [PMID: 29146964 PMCID: PMC5691039 DOI: 10.1038/s41598-017-16068-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2017] [Accepted: 11/06/2017] [Indexed: 12/02/2022] Open
Abstract
Few studies have addressed how to blend wastes for anaerobic co-digestion. This study investigated the effects of waste sources on anaerobic co-digestion (AcoD) performance, by varying the quality of food wastes (FWs) from six sources in Xi’an region, China that were individually co-digested with pre-treated corn straw and cattle manure. These effects were analysed in terms of their volatile solid (VS) ratios, C/N ratios, and the chemical composition of the FWs. The results indicated that the VS ratios were not suitable as a common mixture method because the VS ratios at which the best methane potentials occurred differed significantly among the six FW groups. The C/N ratios within a 17–24 range resulted in better methane potentials when the FWs were co-digested with other wastes. Synergistic effects were found among the carbohydrates, proteins, and lipids of the FWs; however, the optimum ratios of these components could not be determined. Thus, the C/N ratio is recommended as a mixture method when co-digesting FWs with other organic wastes in selected region.
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Affiliation(s)
- Xingang Lu
- School of Chemical Engineering, Northwest University, Xi'an, 710069, China
| | - Wengang Jin
- Bio-resources Key Laboratory of Shaanxi Province, School of Biological Science and Engineering, Shaanxi Sci-Tech University, Hanzhong, 723001, China
| | - Shengrong Xue
- College of Agronomy, Northwest A&F University, Yangling, 712100, China
| | - Xiaojiao Wang
- College of Agronomy, Northwest A&F University, Yangling, 712100, China.
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22
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Li Y, Jin Y, Borrion A, Li H, Li J. Effects of organic composition on the anaerobic biodegradability of food waste. BIORESOURCE TECHNOLOGY 2017; 243:836-845. [PMID: 28724255 DOI: 10.1016/j.biortech.2017.07.028] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2017] [Revised: 07/04/2017] [Accepted: 07/06/2017] [Indexed: 06/07/2023]
Abstract
This work investigated the influence of carbohydrates, proteins and lipids on the anaerobic digestion of food waste (FW) and the relationship between the parameters characterising digestion. Increasing the concentrations of proteins and lipids, and decreasing carbohydrate content in FW, led to high buffering capacity, reduction of proteins (52.7-65.0%) and lipids (57.4-88.2%), and methane production (385-627 mLCH4/g volatile solid), while achieving a short retention time. There were no significant correlations between the reduction of organics, hydrolysis rate constant (0.25-0.66d-1) and composition of organics. Principal Component Analysis revealed that lipid, C, and N contents as well as the C/N ratio were the principal components for digestion. In addition, methane yield, the final concentrations of total ammonia nitrogen and free ammonia nitrogen, final pH values, and the reduction of proteins and lipids could be predicted by a second-order polynomial model, in terms of the protein and lipid weight fraction.
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Affiliation(s)
- Yangyang Li
- School of Environment, Tsinghua University, Beijing 100084, China; Key Laboratory for Solid Waste Management and Environment Safety (Tsinghua University), Ministry of Education of China, Tsinghua University, Beijing 100084, China
| | - Yiying Jin
- School of Environment, Tsinghua University, Beijing 100084, China; Key Laboratory for Solid Waste Management and Environment Safety (Tsinghua University), Ministry of Education of China, Tsinghua University, Beijing 100084, China.
| | - Aiduan Borrion
- Dept of Civil, Environ & Geomatic Eng, University College London, London WC1E 6BT, UK
| | - Hailong Li
- Mälardalen University, School of Business, Society and Engineering, SE-721 23 Västerås, Sweden
| | - Jinhui Li
- School of Environment, Tsinghua University, Beijing 100084, China; Key Laboratory for Solid Waste Management and Environment Safety (Tsinghua University), Ministry of Education of China, Tsinghua University, Beijing 100084, China
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23
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Macias-Corral MA, Samani ZA, Hanson AT, Funk PA. Co-digestion of agricultural and municipal waste to produce energy and soil amendment. WASTE MANAGEMENT & RESEARCH : THE JOURNAL OF THE INTERNATIONAL SOLID WASTES AND PUBLIC CLEANSING ASSOCIATION, ISWA 2017; 35:991-996. [PMID: 28699841 DOI: 10.1177/0734242x17715097] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
In agriculture, manure and cotton gin waste are major environmental liabilities. Likewise, grass is an important organic component of municipal waste. These wastes were combined and used as substrates in a two-phase, pilot-scale anaerobic digester to evaluate the potential for biogas (methane) production, waste minimisation, and the digestate value as soil amendment. The anaerobic digestion process did not show signs of inhibition. Biogas production increased during the first 2 weeks of operation, when chemical oxygen demand and volatile fatty acid concentrations and the organic loading rate to the system were high. Chemical oxygen demand from the anaerobic columns remained relatively steady after the first week of operation, even at high organic loading rates. The experiment lasted about 1 month and produced 96.5 m3 of biogas (68 m3 of CH4) per tonne of waste. In terms of chemical oxygen demand to methane conversion efficiency, the system generated 62% of the theoretical methane production; the chemical oxygen demand/volatile solids degradation rate was 62%, compared with the theoretical 66%. The results showed that co-digestion and subsequent digestate composting resulted in about 60% and 75% mass and volume reductions, respectively. Digestate analysis showed that it can be used as a high nutrient content soil amendment. The digestate met Class A faecal coliform standards (highest quality) established in the United States for biosolids. Digestion and subsequent composting concentrated the digestate nitrogen, phosphorus, and potassium content by 37%, 24%, and 317%, respectively. Multi-substrate co-digestion is a practical alternative for agricultural waste management, minimisation of landfill disposal, and it also results in the production of valuable products.
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Affiliation(s)
- Maritza A Macias-Corral
- 1 Department of Civil Engineering, New Mexico State University, Las Cruces, NM, USA
- 2 Department of Sustainable Engineering, CONACYT-CIMAV Durango, Durango, México
| | - Zohrab A Samani
- 1 Department of Civil Engineering, New Mexico State University, Las Cruces, NM, USA
| | - Adrian T Hanson
- 1 Department of Civil Engineering, New Mexico State University, Las Cruces, NM, USA
- 3 Department of Civil Engineering, University of Minnesota Duluth, Duluth, MN, USA
| | - Paul A Funk
- 4 Cotton Ginning Research Lab, United States Department of Agriculture, Agricultural Research Service Southwestern, Mesilla Park, NM, USA
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24
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De Clercq D, Wen Z, Fan F. Performance evaluation of restaurant food waste and biowaste to biogas pilot projects in China and implications for national policy. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2017; 189:115-124. [PMID: 28012386 DOI: 10.1016/j.jenvman.2016.12.030] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2016] [Revised: 12/06/2016] [Accepted: 12/12/2016] [Indexed: 06/06/2023]
Abstract
The objective of this research was to conduct a performance evaluation of three food waste/biowaste-to-biogas pilot projects across 7 scenarios in China based on multi-criteria decision analysis (MCDA) methodology. The projects ranked included a food waste-biogas project in Beijing, a food waste-biogas project in Suzhou and a co-digestion project producing biomethane in Hainan. The projects were ranked from best to worst based on technical, economic and environmental criteria under the MCDA framework. The results demonstrated that some projects are encountering operational problems. Based on these findings, six national policy recommendations were provided: (1) shift away from capital investment subsidies to performance-based subsidies; (2) re-design feed in tariffs; (3) promote bio-methane and project clustering; (4) improve collection efficiency by incentivizing FW producers to direct waste to biogas projects; (5) incentivize biogas projects to produce multiple outputs; (6) incentivize food waste-based projects to co-digest food waste with other substrates for higher gas output.
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Affiliation(s)
- Djavan De Clercq
- State Key Joint Laboratory of Environment Simulation and Pollution Control (SKLESPC), School of Environment, Tsinghua University, Beijing, 100084, China; Key Laboratory for Solid Waste Management and Environment Safety (Tsinghua University), Ministry of Education of China, Tsinghua University, Beijing, 100084, China
| | - Zongguo Wen
- State Key Joint Laboratory of Environment Simulation and Pollution Control (SKLESPC), School of Environment, Tsinghua University, Beijing, 100084, China; Key Laboratory for Solid Waste Management and Environment Safety (Tsinghua University), Ministry of Education of China, Tsinghua University, Beijing, 100084, China.
| | - Fei Fan
- State Key Joint Laboratory of Environment Simulation and Pollution Control (SKLESPC), School of Environment, Tsinghua University, Beijing, 100084, China; Key Laboratory for Solid Waste Management and Environment Safety (Tsinghua University), Ministry of Education of China, Tsinghua University, Beijing, 100084, China
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25
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Hidalgo D, Martín-Marroquín JM, Nieto P. Anaerobic co-digestion of agro-food waste mixtures in a fed-batch basis. ENVIRONMENTAL TECHNOLOGY 2016; 37:2590-2598. [PMID: 26895466 DOI: 10.1080/09593330.2016.1155654] [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: 10/27/2015] [Accepted: 02/11/2016] [Indexed: 06/05/2023]
Abstract
The agro-food industry (including livestock) generates millions of tonnes of waste products. A solution to this sector's waste disposal challenges was explored by a joint treatment model of organic waste products from several industries. An inventory of agro-food industry organic waste streams with high potential for biogas production was carried out in a logistically viable area (Cider Region, Asturias, Spain). Three industries were selected as those with the higher potential for this study: livestock, dairy and beverage. The kinetics of anaerobic degradation and methane production of four mixtures of selected waste streams were investigated. The specific methane production at five different substrate-to-inoculum ratios (0.50, 0.75, 1.00, 1.50 and 2.00) showed a slightly decreasing trend at the higher ratios. Some hints of a synergistic effect have been observed in mixtures with higher content in milled apple waste, while antagonistic symptoms were noted in mixtures mainly composed of dairy wastes. The estimation of fluxes of waste and methane potentials in the Cider Region suggests centralised anaerobic digestion as a sustainable solution for the valorisation of livestock and agro-food wastes generated in this area. Sector-specific waste streams (livestock and agro-food industry) could cover up to 12% of regional total energy demand.
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Affiliation(s)
- Dolores Hidalgo
- a CARTIF Technology Centre , 47151 Boecillo, Valladolid , Spain
- b ITAP Institute, University of Valladolid , Valladolid , Spain
| | - Jesús M Martín-Marroquín
- a CARTIF Technology Centre , 47151 Boecillo, Valladolid , Spain
- b ITAP Institute, University of Valladolid , Valladolid , Spain
| | - Pedro Nieto
- a CARTIF Technology Centre , 47151 Boecillo, Valladolid , Spain
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Chandrasekhar K, Amulya K, Mohan SV. Solid phase bio-electrofermentation of food waste to harvest value-added products associated with waste remediation. WASTE MANAGEMENT (NEW YORK, N.Y.) 2015; 45:57-65. [PMID: 26117418 DOI: 10.1016/j.wasman.2015.06.001] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2014] [Revised: 05/06/2015] [Accepted: 06/03/2015] [Indexed: 06/04/2023]
Abstract
A novel solid state bio-electrofermentation system (SBES), which can function on the self-driven bioelectrogenic activity was designed and fabricated in the laboratory. SBES was operated with food waste as substrate and evaluated for simultaneous production of electrofuels viz., bioelectricity, biohydrogen (H2) and bioethanol. The system illustrated maximum open circuit voltage and power density of 443 mV and 162.4 mW/m(2), respectively on 9 th day of operation while higher H2 production rate (21.9 ml/h) was observed on 19th day of operation. SBES system also documented 4.85% w/v bioethanol production on 20th day of operation. The analysis of end products confirmed that H2 production could be generally attributed to a mixed acetate/butyrate-type of fermentation. Nevertheless, the presence of additional metabolites in SBES, including formate, lactate, propionate and ethanol, also suggested that other metabolic pathways were active during the process, lowering the conversion of substrate into H2. SBES also documented 72% substrate (COD) removal efficiency along with value added product generation. Continuous evolution of volatile fatty acids as intermediary metabolites resulted in pH drop and depicted its negative influence on SBES performance. Bio-electrocatalytic analysis was carried out to evaluate the redox catalytic capabilities of the biocatalyst. Experimental data illustrated that solid-state fermentation can be effectively integrated in SBES for the production of value added products with the possibility of simultaneous solid waste remediation.
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Affiliation(s)
- K Chandrasekhar
- Bioengineering and Environmental Sciences (BEES), CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad 500 007, India
| | - K Amulya
- Bioengineering and Environmental Sciences (BEES), CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad 500 007, India
| | - S Venkata Mohan
- Bioengineering and Environmental Sciences (BEES), CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad 500 007, India.
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Dai X, Chen S, Xue Y, Dai L, Li N, Takahashi J, Zhao W. Hygienic treatment and energy recovery of dead animals by high solid co-digestion with vinasse under mesophilic condition: feasibility study. JOURNAL OF HAZARDOUS MATERIALS 2015; 297:320-328. [PMID: 26026851 DOI: 10.1016/j.jhazmat.2015.05.027] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2015] [Revised: 05/14/2015] [Accepted: 05/16/2015] [Indexed: 06/04/2023]
Abstract
In the present study, the feasibility of hygienic treatment and energy recovery of dead animals (pork as an experimental alternative) by high solid co-digestion with vinasse under mesophilic condition was investigated. A lab-scale digester was operated for 125 days with SRT of 20 days. The volatile solid (VS) reduction, biogas yield, and CH4 content finally achieved stability after two obvious fluctuations, and were 55±1%, 0.40±0.02 m(3)/kg VS feed and 68%, respectively. Meanwhile, the shifts of microbial communities of the samples taken on typical days with different performance (day 40 (stable), day 65 (deteriorated), day 75 (in recovery), day 90 (recovered) and day 110 (stable)) were monitored by the application of pyrosequencing technology and the bioinformatical analysis with QIIME 1.8. In consequence, the details of changes in bacterial and archaeal communities elaborately explained the intrinsic reasons for the deterioration and recovery of the digester, and provided the proofs for the feasibility of hygienic treatment and energy recovery of dead animals by high solid co-digestion with vinasse under mesophilic condition.
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Affiliation(s)
- Xiaohu Dai
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University,1239 Siping Road,Shanghai 200092, PR China
| | - Sisi Chen
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University,1239 Siping Road,Shanghai 200092, PR China
| | - Yonggang Xue
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University,1239 Siping Road,Shanghai 200092, PR China
| | - Lingling Dai
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University,1239 Siping Road,Shanghai 200092, PR China
| | - Ning Li
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University,1239 Siping Road,Shanghai 200092, PR China.
| | - Junichi Takahashi
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University,1239 Siping Road,Shanghai 200092, PR China; Graduate School of Animal Sciences, Obihiro University of Agriculture and Veterinary Medicine, Obihiro 0808555, Japan
| | - Wentao Zhao
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University,1239 Siping Road,Shanghai 200092, PR China
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Alexis POB, Patricia TL, Fernando MRL, Marcela CCL, Carlos VF, Alexander TLW, Abdón OAJ. Efecto de la relación sustrato-inóculo sobre el potencial bioquímico de metano de biorresiduos de origen municipal. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.riit.2015.09.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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29
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Haider MR, Yousaf S, Malik RN, Visvanathan C. Effect of mixing ratio of food waste and rice husk co-digestion and substrate to inoculum ratio on biogas production. BIORESOURCE TECHNOLOGY 2015; 190:451-7. [PMID: 25818922 DOI: 10.1016/j.biortech.2015.02.105] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2015] [Revised: 02/25/2015] [Accepted: 02/26/2015] [Indexed: 05/25/2023]
Abstract
Aim of this study was to find out suitable mixing ratio of food waste and rice husk for their co-digestion in order to overcome VFA accumulation in digestion of food waste alone. Four mixing ratios of food waste and rice husk with C/N ratios of 20, 25, 30 and 35 were subjected to a lab scale anaerobic batch experiment under mesophilic conditions. Highest specific biogas yield of 584L/kgVS was obtained from feedstock with C/N ratio of 20. Biogas yield decreased with decrease in food waste proportion. Further, fresh cow dung was used as inoculum to investigate optimum S/I ratio with the selected feedstock. In experiment 2, feedstock with C/N ratio 20 was subjected to anaerobic digestion at five S/I ratios of 0.25, 0.5, 1.0, 1.5 and 2.0. Specific biogas yield of 557L/kgVS was obtained at S/I ratio of 0.25. However, VFA accumulation occurred at higher S/I ratios due to higher organic loadings.
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Affiliation(s)
- Muhammad Rizwan Haider
- Department of Environmental Sciences, Quaid-i-Azam University, Islamabad 45320, Pakistan.
| | - Sohail Yousaf
- Department of Environmental Sciences, Quaid-i-Azam University, Islamabad 45320, Pakistan.
| | - Riffat Naseem Malik
- Department of Environmental Sciences, Quaid-i-Azam University, Islamabad 45320, Pakistan.
| | - Chettiyappan Visvanathan
- Environmental Engineering and Management, School of Environment, Resources and Development, Asian Institute of Technology, Bangkok, Thailand.
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Liao X, Zhu S, Zhong D, Zhu J, Liao L. Anaerobic co-digestion of food waste and landfill leachate in single-phase batch reactors. WASTE MANAGEMENT (NEW YORK, N.Y.) 2014; 34:2278-2284. [PMID: 25062938 DOI: 10.1016/j.wasman.2014.06.014] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2014] [Revised: 05/12/2014] [Accepted: 06/16/2014] [Indexed: 06/03/2023]
Abstract
In order to investigate the effect of raw leachate on anaerobic digestion of food waste, co-digestions of food waste with raw leachate were carried out. A series of single-phase batch mesophilic (35±1°C) anaerobic digestions were performed at a food waste concentration of 41.8 g VS/L. The results showed that inhibition of biogas production by volatile fatty acids (VFA) occurred without raw leachate addition. A certain amount of raw leachate in the reactors effectively relieved acidic inhibition caused by VFA accumulation, and the system maintained stable with methane yield of 369-466 mL/g VS. Total ammonia nitrogen introduced into the digestion systems with initial 2000-3000 mgNH4-N/L not only replenished nitrogen for bacterial growth, but also formed a buffer system with VFA to maintain a delicate biochemical balance between the acidogenic and methanogenic microorganisms. UV spectroscopy and fluorescence excitation-emission matrix spectroscopy data showed that food waste was completely degraded. We concluded that using raw leachate for supplement water addition and pH modifier on anaerobic digestion of food waste was effective. An appropriate fraction of leachate could stimulate methanogenic activity and enhance biogas production.
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Affiliation(s)
- Xiaofeng Liao
- School of Environmental Science and Engineering, Huazhong University of Science & Technology, Wuhan 430074, China
| | - Shuangyan Zhu
- School of Environmental Science and Engineering, Huazhong University of Science & Technology, Wuhan 430074, China
| | - Delai Zhong
- School of Environmental Science and Engineering, Huazhong University of Science & Technology, Wuhan 430074, China
| | - Jingping Zhu
- School of Environmental Science and Engineering, Huazhong University of Science & Technology, Wuhan 430074, China.
| | - Li Liao
- School of Environmental Science and Engineering, Huazhong University of Science & Technology, Wuhan 430074, China.
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31
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Zhang J, Wang Q, Zheng P, Wang Y. Anaerobic digestion of food waste stabilized by lime mud from papermaking process. BIORESOURCE TECHNOLOGY 2014; 170:270-277. [PMID: 25151070 DOI: 10.1016/j.biortech.2014.08.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2014] [Revised: 07/30/2014] [Accepted: 08/02/2014] [Indexed: 05/09/2023]
Abstract
The effects of lime mud from papermaking process (LMP) addition as buffer agent and inorganic nutrient on the anaerobic digestion stability of food waste (FW) were investigated under mesophilic conditions with the aim of avoiding volatile fatty acids accumulation, and inorganic elements deficiency. When LMP concentration ranged from 6.0 to 10g/L, the FW anaerobic digestion could maintain efficient and stable state. These advantages are attributed to the existence of Ca, Na, Mg, K, Fe, and alkaline substances that favor the methanogenic process. The highest CH4 yield of 272.8mL/g-VS was obtained at LMP and VS concentrations of 10.0 and 19.8g/L, respectively, with the corresponding lag-phase time of 3.84d and final pH of 8.4. The methanogens from residue digestates mainly consisted of Methanobrevibacter, coccus-type and sarcina-type methanogens with LMP addition compared to Methanobacteria in control. However, higher concentration of LMP inhibited methanogenic activities and methane production.
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Affiliation(s)
- Jishi Zhang
- School of Environmental Science and Engineering, Qilu University of Technology, Jinan 250353, China.
| | - Qinqing Wang
- School of Food and Bioengineering, Qilu University of Technology, Jinan 250353, China
| | - Pengwei Zheng
- School of Environmental Science and Engineering, Qilu University of Technology, Jinan 250353, China
| | - Yusong Wang
- Rizhao Center for Solid Waste Disposal, Rizhao 276800, China
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32
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Yi J, Dong B, Jin J, Dai X. Effect of increasing total solids contents on anaerobic digestion of food waste under mesophilic conditions: performance and microbial characteristics analysis. PLoS One 2014; 9:e102548. [PMID: 25051352 PMCID: PMC4106828 DOI: 10.1371/journal.pone.0102548] [Citation(s) in RCA: 156] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2014] [Accepted: 06/19/2014] [Indexed: 11/29/2022] Open
Abstract
The total solids content of feedstocks affects the performances of anaerobic digestion and the change of total solids content will lead the change of microbial morphology in systems. In order to increase the efficiency of anaerobic digestion, it is necessary to understand the role of the total solids content on the behavior of the microbial communities involved in anaerobic digestion of organic matter from wet to dry technology. The performances of mesophilic anaerobic digestion of food waste with different total solids contents from 5% to 20% were compared and the microbial communities in reactors were investigated using 454 pyrosequencing technology. Three stable anaerobic digestion processes were achieved for food waste biodegradation and methane generation. Better performances mainly including volatile solids reduction and methane yield were obtained in the reactors with higher total solids content. Pyrosequencing results revealed significant shifts in bacterial community with increasing total solids contents. The proportion of phylum Chloroflexi decreased obviously with increasing total solids contents while other functional bacteria showed increasing trend. Methanosarcina absolutely dominated in archaeal communities in three reactors and the relative abundance of this group showed increasing trend with increasing total solids contents. These results revealed the effects of the total solids content on the performance parameters and the behavior of the microbial communities involved in the anaerobic digestion of food waste from wet to dry technologies.
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Affiliation(s)
- Jing Yi
- National Engineering Research Center for Urban Pollution Control, College of Environmental Science and Engineering, Tongji University, Shanghai, People's Republic of China
| | - Bin Dong
- National Engineering Research Center for Urban Pollution Control, College of Environmental Science and Engineering, Tongji University, Shanghai, People's Republic of China
| | - Jingwei Jin
- National Engineering Research Center for Urban Pollution Control, College of Environmental Science and Engineering, Tongji University, Shanghai, People's Republic of China
| | - Xiaohu Dai
- National Engineering Research Center for Urban Pollution Control, College of Environmental Science and Engineering, Tongji University, Shanghai, People's Republic of China
- * E-mail:
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33
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Lisboa MS, Lansing S. Evaluating the toxicity of food processing wastes as co-digestion substrates with dairy manure. WASTE MANAGEMENT (NEW YORK, N.Y.) 2014; 34:1299-1305. [PMID: 24726821 DOI: 10.1016/j.wasman.2014.03.005] [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: 10/17/2013] [Revised: 02/27/2014] [Accepted: 03/04/2014] [Indexed: 06/03/2023]
Abstract
Studies have shown that including food waste as a co-digestion substrate in the anaerobic digestion of livestock manure can increase energy production. However, the type and inclusion rate of food waste used for co-digestion need to be carefully considered in order to prevent adverse conditions in the digestion environment. This study determined the effect of increasing the concentration (2%, 5%, 15% and 30%, by volume) of four food-processing wastes (meatball, chicken, cranberry and ice cream processing wastes) on methane production. Anaerobic toxicity assay (ATA) and specific methanogenic activity (SMA) tests were conducted to determine the concentration at which each food waste became toxic to the digestion environment. Decreases in methane production were observed at concentrations above 5% for all four food waste substrates, with up to 99% decreases in methane production at 30% food processing wastes (by volume).
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Affiliation(s)
- Maria Sol Lisboa
- University of Maryland, Department of Environmental Science and Technology, University of Research Energy Research Center, 1445 Animal Science/Ag Engineering Blgd., College Park, MD 20742, USA
| | - Stephanie Lansing
- University of Maryland, Department of Environmental Science and Technology, University of Research Energy Research Center, 1445 Animal Science/Ag Engineering Blgd., College Park, MD 20742, USA.
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Sanaei-Moghadam A, Abbaspour-Fard MH, Aghel H, Aghkhani MH, Abedini-Torghabeh J. Enhancement of biogas production by co-digestion of potato pulp with cow manure in a CSTR system. Appl Biochem Biotechnol 2014; 173:1858-69. [PMID: 24894660 DOI: 10.1007/s12010-014-0972-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2014] [Accepted: 05/16/2014] [Indexed: 11/28/2022]
Abstract
Anaerobic digestion (AD) process is a well-established method to generate energy from the organic wastes both from the environmental and economical perspectives. The purpose of present study is to evaluate energy production from potato wastes by incorporating cow manure into the process. Firstly, a laboratory pilot of one-stage biogas production was designed and built according to continuously stirred tank reactor (CSTR) system. The setup was able to automatically control the environmental conditions of the process including temperature, duration, and rate of stirring. AD experiment was exclusively performed on co-digestion of potato peel (PP) and cow manure (CM) in three levels of mixing ratio including 20:80, 50:50, 80:20 (PP:CM), and 0:100 as control treatment based on the volatile solid (VS) weight without adding initial inoculums. After hydraulic retention time (HRT) of 50 days on average 193, 256, 348, and 149 norm liter (LN) (kg VS)(-1), methane was produced for different mixing ratios, respectively. Statistical analysis shows that these gas productions are significantly different. The average energy was determined based on the produced methane which was about 2.8 kWh (kg VS)(-1), implying a significant energy production potential. The average chemical oxygen demand (COD) removal of treatments was about 61%, showing that it can be leached significantly with high organic matter by the employed pilot. The energy efficiency of 92% of the process also showed the optimum control of the process by the pilot.
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35
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Smith DB, Almquist CB. The anaerobic co-digestion of fruit and vegetable waste and horse manure mixtures in a bench-scale, two-phase anaerobic digestion system. ENVIRONMENTAL TECHNOLOGY 2014; 35:859-867. [PMID: 24645468 DOI: 10.1080/09593330.2013.854398] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
In this study, the anaerobic digestion of mixtures of food waste (FW) and horse manure was investigated using a bench-scale two-phase reactor system. Both phases were maintained at 35 degrees C for the duration of the 30-day study period. The first phase reactors were prepared with biomass mixtures in deionized water such that each mixture had an initial total solids (TS) concentration of 6 wt%. The second phase reactors were inoculated with cow manure in water two weeks prior to the study period at 3 wt% TS. The biogas from all second phase reactors contained greater than 60 vol% methane in the biogas before they were used in the study, thus indicating the presence of active methanogens. Filtrate (5 mL) from the first phase was used as feed to the second phase reactor. The chemical oxygen demand (COD), total organic carbon, and volatile solids (VS) of the feed from Phase 1 increased with FW content in the biomass mixture, and so the organic loading rates (OLRs) to the Phase 2 reactors also increased. Accordingly, the volume ofbiogas and methane generated from Phase 2 also increased with FW content. The low OLR (<0.2 g VS/L/day), the use of a two-phase system, and the use of filtrate from Phase las feed to Phase 2 allowed for high utilization of the feed; the observed specific methane yields (mL/g COD) were greater than 80% of the theoretical yields for all mixtures. The methane yields were statistically similar to within a 95% confidence interval.
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36
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Lisboa MS, Lansing S. Characterizing food waste substrates for co-digestion through biochemical methane potential (BMP) experiments. WASTE MANAGEMENT (NEW YORK, N.Y.) 2013; 33:2664-2669. [PMID: 24084104 DOI: 10.1016/j.wasman.2013.09.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2012] [Revised: 08/30/2013] [Accepted: 09/02/2013] [Indexed: 06/02/2023]
Abstract
Co-digestion of food waste with dairy manure is increasingly utilized to increase energy production and make anaerobic digestion more affordable; however, there is a lack of information on appropriate co-digestion substrates. In this study, biochemical methane potential (BMP) tests were conducted to determine the suitability of four food waste substrates (meatball, chicken, cranberry and ice cream processing wastes) for co-digestion with flushed dairy manure at a ratio of 3.2% food waste and 96.8% manure (by volume), which equated to 14.7% (ice-cream) to 80.7% (chicken) of the VS being attributed to the food waste. All treatments led to increases in methane production, ranging from a 67.0% increase (ice cream waste) to a 2940% increase (chicken processing waste) compared to digesting manure alone, demonstrating the large potential methane production of food waste additions compared to relatively low methane production potential of the flushed dairy manure, even if the overall quantity of food waste added was minimal.
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Affiliation(s)
- Maria Sol Lisboa
- University of Maryland, Department of Environmental Science and Technology, University of Maryland Energy Research Center, 1445 Animal Science/Ag Engineering Blgd., College Park, MD 20742, USA; Maimonides University, Department of Ecology and Environmental Science, Hidalgo 775, C1405BCK CABA, Buenos Aires, Argentina
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37
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38
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Biogas production and microbial community change during the Co-digestion of food waste with chinese silver grass in a single-stage anaerobic reactor. BIOTECHNOL BIOPROC E 2013. [DOI: 10.1007/s12257-013-0128-4] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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39
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Wan S, Sun L, Douieb Y, Sun J, Luo W. Anaerobic digestion of municipal solid waste composed of food waste, wastepaper, and plastic in a single-stage system: performance and microbial community structure characterization. BIORESOURCE TECHNOLOGY 2013; 146:619-627. [PMID: 23974214 DOI: 10.1016/j.biortech.2013.07.140] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2013] [Revised: 07/25/2013] [Accepted: 07/29/2013] [Indexed: 06/02/2023]
Abstract
The performance of municipal organic solid waste anaerobic digestion was investigated using a single-stage bioreactor, and the microbial community structures were characterized during the digestion. The results showed that the biogas and methane production rates were 592.4 and 370.1L/kg with volatile solid added at the ratio of 2:1:1 for food waste, wastepaper, and plastic based on dry weight. The methane volume concentration fluctuated between 44.3% and 75.4% at steady stage. Acetic acid, propionic acid, and butyric acid were the major volatile fatty acids produced during the digestion process. The anaerobic process was not inhibited by the accumulation of ammonia and free ammonia. The bacterial community was found to consist of at least 21 bands of bacteria and 12 bands of archaea at the steady state. All of the results indicated that the mixture of food waste, wastepaper, and plastic could be efficiently co-digested using the anaerobic digestion system.
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Affiliation(s)
- Shungang Wan
- Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, PR China
| | - Lei Sun
- Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, PR China; Guangxi University, School of Environment, Nanning 530004, PR China
| | - Yaniv Douieb
- AgroParisTech, 16 rue Claude Bernard, F-75231 Paris, France
| | - Jian Sun
- Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, PR China
| | - Wensui Luo
- Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, PR China.
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40
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Lateef SA, Beneragama N, Yamashiro T, Iwasaki M, Umetsu K. Batch anaerobic co-digestion of cow manure and waste milk in two-stage process for hydrogen and methane productions. Bioprocess Biosyst Eng 2013; 37:355-63. [DOI: 10.1007/s00449-013-1000-9] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2013] [Accepted: 06/12/2013] [Indexed: 11/30/2022]
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41
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Lin Y, Wang D, Liang J, Li G. Mesophilic anaerobic co-digestion of pulp and paper sludge and food waste for methane production in a fed-batch basis. ENVIRONMENTAL TECHNOLOGY 2012; 33:2627-2633. [PMID: 23437663 DOI: 10.1080/09593330.2012.673012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Co-digestion of pulp and paper sludge (PPS) and food waste (FW) in a batch-fed digestion system was conducted on a laboratory scale. Three reactors named A1, A2, and A3 were tested. PPS and FW mixed at different mass ratios of 1:3, 1:1, and 3:1, respectively, were loaded in the reactors. Bioconversion at high efficiency was obtained in the system. The accumulative methane yield of each reactor was 144mLg(-1)VSfed (A1), 256 mL g(-1) VSfed (A2), and 123 mL g(-1)VSfed (A3). The soluble chemical oxygen demand (COD) removal efficiencies reached 73.2% (Al), 93.9% (A2), and 79.6% (A3). A pH in the range 5.8-8.4 was obtained in the three reactors without adjustment due to the high buffer capacity of the mixing feedstock. No toxicity inhibitions of volatile fatty acids and NH3-N occurred in reactor A2. This study showed that it was good for co-digestion of PPS and FW in a mass ratio of 1:1 for methane production, which resulted in higher methane yield, a greater buffer capacity, a higher organics removal efficiency, and a more stable process.
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Affiliation(s)
- Yunqin Lin
- Key Laboratory of Soil Environment and Waste Reuse in Agriculture of Guangdong High Education Institutions, College of Natural Resources and Environment, South China Agricultural University, Guangzhou, P.R. China
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42
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Chai H, Kang W. Influence of Biofilm Density on Anaerobic Sequencing Batch Biofilm Reactor Treating Mustard Tuber Wastewater. Appl Biochem Biotechnol 2012; 168:1664-71. [DOI: 10.1007/s12010-012-9887-1] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2012] [Accepted: 08/30/2012] [Indexed: 11/25/2022]
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Hidalgo D, Sastre E, Gómez M, Nieto P. Evaluation of pre-treatment processes for increasing biodegradability of agro-food wastes. ENVIRONMENTAL TECHNOLOGY 2012; 33:1497-1503. [PMID: 22988607 DOI: 10.1080/09593330.2012.665488] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Anaerobic digestion (AD) technology can be employed for treating sewage sludge, livestock waste or food waste. Generally, the hydrolysis stage is the rate-limiting step of the AD processes for solid waste degradation. Therefore, physical, chemical and biological pre-treatment methods or their combination are required, in order to reduce the rate of such a limiting step. In this study, four methods (mechanical shredding, acid hydrolysis, alkaline hydrolysis and sonication) were tested to improve methane production and anaerobic biodegradability of different agro-food wastes and their mixtures. The kinetics of anaerobic degradation and methane production ofpre-treated individual wastes and selected mixtures were investigated with batch tests. Sonication at lower frequencies (37 kHz) proved to give the best results with methane productivity enhancements of over 100% in the case of pig manure and in the range of 10-47% for the other wastes assayed. Furthermore, the ultimate methane production was proportional, in all the cases, to the specific energy input applied (Es). Sonication can, thus, enhance waste digestion and the rate and quantity of biogas generated. The behaviour of the other pre-treatments under the conditions assayed is not significant. Only a slight enhancement of biogas production (around 10%) was detected for whey and waste activated sludge (WAS) after mechanical shredding. The lack of effectiveness of chemical pre-treatments (acid and alkaline hydrolysis) can be justified by the inhibition of the methanogenic process due to the presence of high concentrations of sodium (up to 8 g l(-1) in some tests). Only in the case of WAS did the acid hydrolysis considerably increase the biodegradability of the sample (79%), because in this case no inhibition by sodium took place. Some hints of a synergistic effect have been observed when co-digestion of the mixtures was performed.
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Affiliation(s)
- D Hidalgo
- Centro Tecnológico CARTIF, Valladolid, Spain.
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44
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Zhang L, Ouyang W, Lia A. Essential Role of Trace Elements in Continuous Anaerobic Digestion of Food Waste. ACTA ACUST UNITED AC 2012. [DOI: 10.1016/j.proenv.2012.10.014] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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45
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Supaphol S, Jenkins SN, Intomo P, Waite IS, O'Donnell AG. Microbial community dynamics in mesophilic anaerobic co-digestion of mixed waste. BIORESOURCE TECHNOLOGY 2011; 102:4021-7. [PMID: 21196114 DOI: 10.1016/j.biortech.2010.11.124] [Citation(s) in RCA: 96] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2010] [Revised: 11/27/2010] [Accepted: 11/30/2010] [Indexed: 05/16/2023]
Abstract
This paper identifies key components of the microbial community involved in the mesophilic anaerobic co-digestion (AD) of mixed waste at Rayong Biogas Plant, Thailand. The AD process is separated into three stages: front end treatment (FET); feed holding tank and the main anaerobic digester. The study examines how the microbial community structure was affected by the different stages and found that seeding the waste at the beginning of the process (FET) resulted in community stability. Also, co-digestion of mixed waste supported different bacterial and methanogenic pathways. Typically, acetoclastic methanogenesis was the major pathway catalysed by Methanosaeta but hydrogenotrophs were also supported. Finally, the three-stage AD process means that hydrolysis and acidogenesis is initiated prior to entering the main digester which helps improve the bioconversion efficiency. This paper demonstrates that both resource availability (different waste streams) and environmental factors are key drivers of microbial community dynamics in mesophilic, anaerobic co-digestion.
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Affiliation(s)
- Savaporn Supaphol
- Department of Soil Science, Faculty of Agriculture, Kasetsart University, Bangkok, Thailand
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46
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Suryawanshi PC, Chaudhari AB, Kothari RM. Mesophilic anaerobic digestion: first option for waste treatment in tropical regions. Crit Rev Biotechnol 2010; 30:259-82. [DOI: 10.3109/07388551.2010.487047] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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