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Luo T, Shen B, Mei Z, Hove A, Ju K. Unlocking the potential of biogas systems for energy production and climate solutions in rural communities. Nat Commun 2024; 15:5900. [PMID: 39003261 PMCID: PMC11246535 DOI: 10.1038/s41467-024-50091-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Accepted: 06/27/2024] [Indexed: 07/15/2024] Open
Abstract
On-site conversion of organic waste into biogas to satisfy consumer energy demand has the potential to realize energy equality and mitigate climate change reliably. However, existing methods ignore either real-time full supply or methane escape when supply and demand are mismatched. Here, we show an improved design of community biogas production and distribution system to overcome these and achieve full co-benefits in developing economies. We take five existing systems as empirical examples. Mechanisms of synergistic adjusting out-of-step biogas flow rates on both the plant-side and user-side are defined to obtain consumption-to-production ratios of close to 1, such that biogas demand of rural inhabitants can be met. Furthermore, carbon mitigation and its viability under universal prevailing climates are illustrated. Coupled with manure management optimization, Chinese national deployment of the proposed system would contribute a 3.77% reduction towards meeting its global 1.5 °C target. Additionally, fulfilling others' energy demands has considerable decarbonization potential.
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Affiliation(s)
- Tao Luo
- Biogas Institute of Ministry of Agriculture and Rural Affairs, Chengdu, China
| | - Bo Shen
- Lawrence Berkeley National Laboratory, Berkeley, CA, USA.
| | - Zili Mei
- Biogas Institute of Ministry of Agriculture and Rural Affairs, Chengdu, China
| | - Anders Hove
- The Oxford Institute for Energy Studies, Oxford, UK
| | - Keyi Ju
- Jiangsu University of Science and Technology, Zhenjiang, China
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2
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Ezieke AH, Serrano A, Peces M, Clarke W, Villa-Gomez D. Effect of feeding frequency on the anaerobic digestion of berry fruit waste. WASTE MANAGEMENT (NEW YORK, N.Y.) 2024; 178:66-75. [PMID: 38377770 DOI: 10.1016/j.wasman.2024.02.011] [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: 10/27/2023] [Revised: 01/29/2024] [Accepted: 02/05/2024] [Indexed: 02/22/2024]
Abstract
On-site anaerobic digesters for small agricultural farms typically have feeding schedules that fluctuate according to farm operations. Shocks in feeding, particularly for putrescible waste can disrupt the stable operation of a digester. The effect of intermittent feeding on the anaerobic digestion of rejected raspberries was investigated in four 3L reactors operated in semicontinuous mode for 350 days at 38 °C with a hydraulic retention time of 25 days and an organic loading rate (OLR) of 1gVS/L/d. During the acclimatisation period (147 days) the organic loading was 5 feeds per week. The feeding regime of two reactors was then changed while maintaining the same OLR and HRT to one weekly feed event in one reactor and 3 equal feeds per week in another. The feeding regime did not significantly affect specific methane yield (369 ± 47 L/kgVS on average) despite very different weekly patterns in methane production. Volatile fatty acids (VFA) comprised >83 % of the organics in the effluent, while the rest included non-inhibitory concentrations of phenolic compounds (515-556 mg gallic acid/L). The microbial composition and relative abundance of predominant groups in all reactors were the archaeal genera Methanobacterium and Methanolinea and the bacterial phyla Bacteridota and Firmicutes. Increasing the OLR to 2gVS/L/d on day 238 resulted in failure of all reactors, attributed to the insufficient alkalinity to counterbalance the VFA produced, and the pH decrease below 6. Overall results suggests that optimal digestion of raspberry waste is maintained despite variations in feeding frequency, but acidification can occur with OLR changes.
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Affiliation(s)
| | - Antonio Serrano
- The University of Queensland, School of Civil Engineering, Brisbane 4072, Australia; Institute of Water Research, University of Granada, Granada 18071, Spain; Department of Microbiology, Pharmacy Faculty, University of Granada, Campus de Cartuja s/n, Granada 18071, Spain
| | - Miriam Peces
- Department of Chemistry and Bioscience, Center for Microbial Communities, Aalborg University, Aalborg East 9220, Denmark
| | - William Clarke
- The University of Queensland, School of Civil Engineering, Brisbane 4072, Australia
| | - Denys Villa-Gomez
- The University of Queensland, School of Civil Engineering, Brisbane 4072, Australia.
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3
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Astete Vasquez L, Mladenov N. Effect of modified waste introduction methods over short-term and long-term use of onsite sanitation systems. Sci Rep 2023; 13:8506. [PMID: 37231001 DOI: 10.1038/s41598-023-35110-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Accepted: 05/12/2023] [Indexed: 05/27/2023] Open
Abstract
Insufficiently treated wastes contained within onsite sanitation systems (OSS) commonly used by disadvantaged and developing communities contribute to public and environmental health concerns, calling for practical alternative solutions. At the basic level, an improved understanding of the evolution of chemical and physical constituents under different waste introduction methods and for short-term and long-term operation is needed. While receiving non-dilute waste under mixed, unmixed, toilet paper exclusion, and urine diversion (UD) regimes, self-flushing OSS simulated using anaerobic digesters (ADs) were compared during three operational stages: (1) 0-1 month service for unsheltered encampments; (2) 1-3 month disaster relief scenario; and (3) ≥ 3 months representing refugee camps and long-term household use. Although stratification was found to promote suitable conditions for short-term use of self-flushing toilets, mixing increased beneficial biodegradation of organic constituents. Urine-containing ADs demonstrated a shift from sulfide to ammonia odor accompanied by high pH (> 8) after ~ 240 d. E. coli reduction following elevated nitrogen and dissolved solids levels pointed to decreased pathogen survival in ADs with urine. The benefits of bacterial disinfection, reduction of sulfurous odors, and heightened organics degradation in mixed, urine-containing ADs suggest this format as more desirable for prolonged use of self-flushing OSS over unmixed or urine-diverting formats.
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Affiliation(s)
- L Astete Vasquez
- Department of Civil, Construction, and Environmental Engineering, San Diego State University, San Diego, USA.
- Department of Mechanical and Aerospace Engineering, University of California, San Diego, USA.
| | - N Mladenov
- Department of Civil, Construction, and Environmental Engineering, San Diego State University, San Diego, USA
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4
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Vital-Jacome MA, Buitrón G. Thermophilic anaerobic digestion of winery effluents in a two-stage process and the effect of the feeding frequency on methane production. CHEMOSPHERE 2021; 272:129865. [PMID: 33592509 DOI: 10.1016/j.chemosphere.2021.129865] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 01/16/2021] [Accepted: 02/02/2021] [Indexed: 06/12/2023]
Abstract
This investigation evaluates a two-stage process to treat highly concentrated winery effluents, including a thermophilic methanogenic stage. The inoculum adaptation, the effect of the organic loading rates on both stages, and the methanogenic reactor's feeding frequency on the process performance were studied. An active thermophilic inoculum was obtained by a one-step temperature increase from 35 to 55 °C. The application of organic loads above 120 kg COD m-3 d-1 in the acidogenic stage ensured the highest acetic acid concentration, while methane production rates as high as 7.1 Nm3 CH4 m-3 d-1 and a yield of 348 L CH4 kg-1 COD were obtained in the thermophilic methanogenic stage using an organic loading rate of 29.9 kg COD m-3 d-1. However, a lower removal of organic matter was observed under that condition. Lower feeding frequencies improved methane productivity and yield, suggesting that this parameter is a useful process optimization tool.
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Affiliation(s)
- Miguel A Vital-Jacome
- Laboratory for Research on Advanced Processes for Water Treatment, Unidad Académica Juriquilla, Instituto de Ingeniería, Universidad Nacional Autónoma de México, Blvd. Juriquilla 3001, 76230, Querétaro, Mexico
| | - Germán Buitrón
- Laboratory for Research on Advanced Processes for Water Treatment, Unidad Académica Juriquilla, Instituto de Ingeniería, Universidad Nacional Autónoma de México, Blvd. Juriquilla 3001, 76230, Querétaro, Mexico.
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5
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Arias DE, Veluchamy C, Habash MB, Gilroyed BH. Biogas production, waste stabilization efficiency, and hygienization potential of a mesophilic anaerobic plug flow reactor processing swine manure and corn stover. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 284:112027. [PMID: 33516982 DOI: 10.1016/j.jenvman.2021.112027] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Revised: 01/14/2021] [Accepted: 01/20/2021] [Indexed: 06/12/2023]
Abstract
Swine manure and corn stover are abundant agricultural wastes which contribute to greenhouse gas (GHG) emissions, nutrient runoff leading to eutrophication, and a biosafety risk with respect to improper swine manure handling. Anaerobic co-digestion (AcoD) of swine manure and corn stover can mitigate these negative impacts while producing biogas as a renewable energy source. Semi-continuous mesophilic plug flow reactor (PFR operation) was studied during a step-wise increase in organic loading rate (OLR) over the range of 0.25-4.7 kg volatile solids added (VS) m-3 d-1, which corresponded to total solids content (TS) of 1.5-9.0%. Process stability was observed at all OLR, with the highest total biogas yield and methane content of 0.674 ± 0.06 m-3 kg-1 and 62%, respectively, at 0.25 kg m-3 d-1. As OLR and TS increased, VS reduction decreased and volatile fatty acids (VFA) increased due to shorter hydraulic retention times (HRT). Hygienization potential was assayed using fecal indicator bacteria (FIB), with some groups being reduced (E. coli, fecal coliforms) and others not (Clostridia spp., fecal enterococci). Lignocellulolytic enzyme activity trended upward as OLR was increased, highlighting changes in microbial activity in response to feeding rate.
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Affiliation(s)
- Daniel E Arias
- School of Environmental Sciences, University of Guelph, Ridgetown Campus, Ridgetown, N0P 2C0, Canada
| | - Chitraichamy Veluchamy
- School of Environmental Sciences, University of Guelph, Ridgetown Campus, Ridgetown, N0P 2C0, Canada; Centre for Agricultural Renewable Energy and Sustainability, University of Guelph, Ridgetown Campus, Ridgetown, N0P 2C0, Canada.
| | - Marc B Habash
- School of Environmental Sciences, University of Guelph, Guelph, N1G 2W1, Canada
| | - Brandon H Gilroyed
- School of Environmental Sciences, University of Guelph, Ridgetown Campus, Ridgetown, N0P 2C0, Canada; Centre for Agricultural Renewable Energy and Sustainability, University of Guelph, Ridgetown Campus, Ridgetown, N0P 2C0, Canada
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6
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Lafratta M, Thorpe RB, Ouki SK, Shana A, Germain E, Willcocks M, Lee J. Dynamic biogas production from anaerobic digestion of sewage sludge for on-demand electricity generation. BIORESOURCE TECHNOLOGY 2020; 310:123415. [PMID: 32344240 DOI: 10.1016/j.biortech.2020.123415] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Revised: 04/17/2020] [Accepted: 04/17/2020] [Indexed: 06/11/2023]
Abstract
The aim of this work was to study the potentials and benefits of dynamic biogas production from Anaerobic Digestion (AD) of sewage sludge. The biogas production rate was aimed to match the flexible demand for electricity generation and so appropriate feeding regimes were calculated and tested in both pilot and demonstration scale. The results demonstrate that flexibilization capability exists for both conventional AD and advanced AD using Thermal Hydrolysis Process (THP) as pre-treatment. Whilst the former provides lower capability, flexible biogas production was achieved by the latter, as it provides a quick response. In all scenarios, the value of the biogas converted into electricity is higher than with a steady operational regime, increasing by 3.6% on average (up to 5.0%) in conventional and by 4.8% on average (up to 7.1%) with THP. The process has proven scalable up to 18 m3 digester capacity in operational conditions like those in full scale.
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Affiliation(s)
- Mauro Lafratta
- Centre for Environment and Sustainability, University of Surrey, Guildford GU2 7XH, United Kingdom; Research, Development and Innovation, Thames Water Utilities Ltd, Reading STW, Reading RG2 0RP, United Kingdom.
| | - Rex B Thorpe
- Department of Chemical and Process Engineering, University of Surrey, Guildford GU2 7XH, United Kingdom
| | - Sabeha K Ouki
- Department of Civil and Environmental Engineering, University of Surrey, Guildford GU2 7XH, United Kingdom
| | - Achame Shana
- Operational Excellence, Thames Water Utilities Ltd, Clearwater Court, Vastern Road, Reading RG1 8DB, United Kingdom
| | - Eve Germain
- Research, Development and Innovation, Thames Water Utilities Ltd, Reading STW, Reading RG2 0RP, United Kingdom
| | - Mark Willcocks
- Energy and Carbon, Thames Water Utilities Ltd, Clearwater Court, Vastern Road, Reading RG1 8DB, United Kingdom
| | - Jacquetta Lee
- Centre for Environment and Sustainability, University of Surrey, Guildford GU2 7XH, United Kingdom
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Huang H, Biswal BK, Chen GH, Wu D. Sulfidogenic anaerobic digestion of sulfate-laden waste activated sludge: Evaluation on reactor performance and dynamics of microbial community. BIORESOURCE TECHNOLOGY 2020; 297:122396. [PMID: 31748132 DOI: 10.1016/j.biortech.2019.122396] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Revised: 11/05/2019] [Accepted: 11/07/2019] [Indexed: 06/10/2023]
Abstract
This study investigated the impact of sludge retention times (SRTs: 40, 20, 10 and 5 days) on performance of the sulfidogenic anaerobic digestion (SAD) reactor treating sulfate-laden waste activated sludge and dynamics of sulfate reducing bacteria (SRB). The findings showed that sulfide production, volatile sludge removal efficiency, ammonia release and methane yield decreased by 33.7%, 66.4%, 21.3% and 68.7%, respectively when SRT was shortened from 40 to 5 d. Significant enrichment of hydrolyzers/fermenters (genera Mesotoga and Sulfurovum) was observed at longer SRT (40 d), but shorter SRT (5 d) favors enrichment of diverse SRB (genera Desulfomicrobium and Desulfovibrio). PICRUSt data revealed bacterial communities possessed diverse predicted functions including sulfur metabolism enzymes (e.g. sulfate adenylyltransferase), and their abundance was higher at shorter SRT. Statistical analysis (PCA) confirmed positive relationships between SRB and SAD performance. The findings of this research could be useful for design and optimization of sulfidogenic-based anaerobic digestion process.
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Affiliation(s)
- Hao Huang
- Department of Civil and Environmental Engineering, The Hong Kong University of Science and Technology, Hong Kong, China
| | - Basanta Kumar Biswal
- Department of Civil and Environmental Engineering, The Hong Kong University of Science and Technology, Hong Kong, China
| | - Guang-Hao Chen
- Department of Civil and Environmental Engineering, The Hong Kong University of Science and Technology, Hong Kong, China
| | - Di Wu
- Department of Civil and Environmental Engineering, The Hong Kong University of Science and Technology, Hong Kong, China.
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8
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Amini A, Aponte-Morales V, Wang M, Dilbeck M, Lahav O, Zhang Q, Cunningham JA, Ergas SJ. Cost-effective treatment of swine wastes through recovery of energy and nutrients. WASTE MANAGEMENT (NEW YORK, N.Y.) 2017; 69:508-517. [PMID: 28864310 DOI: 10.1016/j.wasman.2017.08.041] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2017] [Revised: 08/04/2017] [Accepted: 08/22/2017] [Indexed: 06/07/2023]
Abstract
Wastes from concentrated animal feeding operations (CAFOs) are challenging to treat because they are high in organic matter and nutrients. Conventional swine waste treatment options in the U.S., such as uncovered anaerobic lagoons, result in poor effluent quality and greenhouse gas emissions, and implementation of advanced treatment introduces high costs. Therefore, the purpose of this paper is to evaluate the performance and life cycle costs of an alternative system for treating swine CAFO waste, which recovers valuable energy (as biogas) and nutrients (N, P, K+) as saleable fertilizers. The system uses in-vessel anaerobic digestion (AD) for methane production and solids stabilization, followed by struvite precipitation and ion exchange (IX) onto natural zeolites (chabazite or clinoptilolite) for nutrient recovery. An alternative approach that integrated struvite recovery and IX into a single reactor, termed STRIEX, was also investigated. Pilot- and bench-scale reactor experiments were used to evaluate the performance of each stage in the treatment train. Data from these studies were integrated into a life cycle cost analysis (LCCA) to assess the cost-effectiveness of various process alternatives. Significant improvement in water quality, high methane production, and high nutrient recovery (generally over 90%) were observed with both the AD-struvite-IX process and the AD-STRIEX process. The LCCA showed that the STRIEX system can provide considerable financial savings compared to conventional systems. AD, however, incurs high capital costs compared to conventional anaerobic lagoons and may require larger scales to become financially attractive.
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Affiliation(s)
- Adib Amini
- Department of Civil and Environmental Engineering, University of South Florida, 4202 E. Fowler Ave ENB 118, Tampa, FL 33620, USA.
| | - Veronica Aponte-Morales
- Department of Civil and Environmental Engineering, University of South Florida, 4202 E. Fowler Ave ENB 118, Tampa, FL 33620, USA.
| | - Meng Wang
- Department of Civil and Environmental Engineering, University of South Florida, 4202 E. Fowler Ave ENB 118, Tampa, FL 33620, USA.
| | - Merrill Dilbeck
- Department of Civil and Environmental Engineering, University of South Florida, 4202 E. Fowler Ave ENB 118, Tampa, FL 33620, USA.
| | - Ori Lahav
- Faculty of Civil and Environmental Engineering, Israel Institute of Technology, Haifa 32000, Israel.
| | - Qiong Zhang
- Department of Civil and Environmental Engineering, University of South Florida, 4202 E. Fowler Ave ENB 118, Tampa, FL 33620, USA.
| | - Jeffrey A Cunningham
- Department of Civil and Environmental Engineering, University of South Florida, 4202 E. Fowler Ave ENB 118, Tampa, FL 33620, USA.
| | - Sarina J Ergas
- Department of Civil and Environmental Engineering, University of South Florida, 4202 E. Fowler Ave ENB 118, Tampa, FL 33620, USA.
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9
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Li X, Peng Y, He Y, Wang S, Guo S, Li L. Anaerobic stabilization of waste activated sludge at different temperatures and solid retention times: Evaluation by sludge reduction, soluble chemical oxygen demand release and dehydration capability. BIORESOURCE TECHNOLOGY 2017; 227:398-403. [PMID: 28041777 DOI: 10.1016/j.biortech.2016.12.069] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2016] [Revised: 12/18/2016] [Accepted: 12/21/2016] [Indexed: 06/06/2023]
Abstract
Anaerobic treatment is the most widely used method of waste activated sludge (WAS) stabilization. Using a semi-continuous stirring tank with condensed WAS, we investigated effects of decreasing the solid retention time (SRT) from 32days to 6.4days on sludge reduction, soluble chemical oxygen demand (SCOD) release and dehydration capability, along with anaerobic digestion operated at medium temperature (MT-AD) or anaerobic digestion operated at room temperature (RT-AD). Results showed that effects of temperature on SCOD release were greater at SRT of 32d and 6.4d. When SRT was less than 8d, total solids (TS), volatile solids (VS) and capillary suction time (CST) did not change significantly. CST was lowest at SRT of 10.7days, indicating best condition for sludge dehydration. Principal component analysis (PCA) showed that the most optimum SRT was higher than 10.7d both in MT-AD or RT-AD.
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Affiliation(s)
- Xiyao Li
- National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Engineering Research Center of Beijing, Beijing University of Technology, Beijing 100124, PR China.
| | - Yongzhen Peng
- National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Engineering Research Center of Beijing, Beijing University of Technology, Beijing 100124, PR China.
| | - Yuelan He
- National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Engineering Research Center of Beijing, Beijing University of Technology, Beijing 100124, PR China.
| | - Shuying Wang
- National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Engineering Research Center of Beijing, Beijing University of Technology, Beijing 100124, PR China.
| | - Siyu Guo
- National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Engineering Research Center of Beijing, Beijing University of Technology, Beijing 100124, PR China.
| | - Lukai Li
- National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Engineering Research Center of Beijing, Beijing University of Technology, Beijing 100124, PR China.
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10
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Auer A, Vande Burgt NH, Abram F, Barry G, Fenton O, Markey BK, Nolan S, Richards K, Bolton D, De Waal T, Gordon SV, O'Flaherty V, Whyte P, Zintl A. Agricultural anaerobic digestion power plants in Ireland and Germany: policy and practice. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2017; 97:719-723. [PMID: 27553887 DOI: 10.1002/jsfa.8005] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2016] [Revised: 05/31/2016] [Accepted: 08/21/2016] [Indexed: 06/06/2023]
Abstract
The process of anaerobic digestion (AD) is valued as a carbon-neutral energy source, while simultaneously treating organic waste, making it safer for disposal or use as a fertilizer on agricultural land. The AD process in many European nations, such as Germany, has grown from use of small, localized digesters to the operation of large-scale treatment facilities, which contribute significantly to national renewable energy quotas. However, these large AD plants are costly to run and demand intensive farming of energy crops for feedstock. Current policy in Germany has transitioned to support funding for smaller digesters, while also limiting the use of energy crops. AD within Ireland, as a new technology, is affected by ambiguous governmental policies concerning waste and energy. A clear governmental strategy supporting on-site AD processing of agricultural waste will significantly reduce Ireland's carbon footprint, improve the safety and bioavailability of agricultural waste, and provide an indigenous renewable energy source. © 2016 Society of Chemical Industry.
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Affiliation(s)
- Agathe Auer
- University College of Dublin School of Veterinary Medicine, Belfield, Dublin 4, Ireland
| | - Nathan H Vande Burgt
- University College of Dublin School of Veterinary Medicine, Belfield, Dublin 4, Ireland
| | - Florence Abram
- National University of Ireland Galway School of Natural Sciences, Galway, Ireland
| | - Gerald Barry
- University College of Dublin School of Veterinary Medicine, Belfield, Dublin 4, Ireland
| | - Owen Fenton
- TEAGASC, Environment Research Centre, Johnstown Castle, County Wexford, Ireland
| | - Bryan K Markey
- University College of Dublin School of Veterinary Medicine, Belfield, Dublin 4, Ireland
| | - Stephen Nolan
- National University of Ireland Galway School of Natural Sciences, Galway, Ireland
| | - Karl Richards
- TEAGASC, Environment Research Centre, Johnstown Castle, County Wexford, Ireland
| | - Declan Bolton
- TEAGASC, Ashtown Food Research Centre, Ashtown, Dublin 15, Ireland
| | - Theo De Waal
- University College of Dublin School of Veterinary Medicine, Belfield, Dublin 4, Ireland
| | - Stephen V Gordon
- University College of Dublin School of Veterinary Medicine, Belfield, Dublin 4, Ireland
| | - Vincent O'Flaherty
- National University of Ireland Galway School of Natural Sciences, Galway, Ireland
| | - Paul Whyte
- University College of Dublin School of Veterinary Medicine, Belfield, Dublin 4, Ireland
| | - Annetta Zintl
- University College of Dublin School of Veterinary Medicine, Belfield, Dublin 4, Ireland
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11
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Khan MA, Ngo HH, Guo WS, Liu YW, Zhou JL, Zhang J, Liang S, Ni BJ, Zhang XB, Wang J. Comparing the value of bioproducts from different stages of anaerobic membrane bioreactors. BIORESOURCE TECHNOLOGY 2016; 214:816-825. [PMID: 27233838 DOI: 10.1016/j.biortech.2016.05.013] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2016] [Revised: 05/03/2016] [Accepted: 05/05/2016] [Indexed: 06/05/2023]
Abstract
The anaerobic digestion process in anaerobic membrane bioreactors is an effective way for waste management, energy sustainability and pollution control in the environment. This digestion process basically involves the production of volatile fatty acids and biohydrogen as intermediate products and methane as a final product. This paper compares the value of bioproducts from different stages of anaerobic membrane bioreactors through a thorough assessment. The value was assessed in terms of technical feasibility, economic assessment, environmental impact and impact on society. Even though the current research objective is more inclined to optimize the production of methane, the intermediate products could also be considered as economically attractive and environment friendly options. Hence, this is the first review study to correlate the idea into an anaerobic membrane bioreactor which is expected to guide future research pathways regarding anaerobic process and its bioproducts.
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Affiliation(s)
- M A Khan
- Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, Sydney, NWS 2007, Australia
| | - H H Ngo
- Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, Sydney, NWS 2007, Australia.
| | - W S Guo
- Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, Sydney, NWS 2007, Australia
| | - Y W Liu
- Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, Sydney, NWS 2007, Australia
| | - J L Zhou
- Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, Sydney, NWS 2007, Australia
| | - J Zhang
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science & Engineering, Shandong University, Jinan 250100, China
| | - S Liang
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science & Engineering, Shandong University, Jinan 250100, China
| | - B J Ni
- State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
| | - X B Zhang
- Department of Environmental and Municipal Engineering, Tianjin Key Laboratory of Aquatic Science and Technology, Tianjin Chengjian University, Jinjing Road 26, Tianjin 300384, China
| | - J Wang
- School of Environmental and Chemical Engineering, Tianjin Polytechnic University, Tianjin 300387, China
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