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Sun MT, Zhao YZ, Yang ZM, Shi XS, Wang L, Dai M, Wang F, Guo RB. Methane Elimination Using Biofiltration Packed With Fly Ash Ceramsite as Support Material. Front Bioeng Biotechnol 2020; 8:351. [PMID: 32391347 PMCID: PMC7188830 DOI: 10.3389/fbioe.2020.00351] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Accepted: 03/30/2020] [Indexed: 11/13/2022] Open
Abstract
Methane is a greenhouse gas and significantly contributes to global warming. Methane biofiltration with immobilized methane-oxidizing bacteria (MOB) is an efficient and eco-friendly approach for methane elimination. To achieve high methane elimination capacity (EC), it is necessary to use an exceptional support material to immobilize MOB. The MOB consortium was inoculated in biofilters to continuusly eliminate 1% (v/v) of methane. Results showed that the immobilized MOB cells outperformed than the suspended MOB cells. The biofilter packed with fly ash ceramsite (FAC) held the highest average methane EC of 4.628 g h–1 m–3, which was 33.4% higher than that of the biofilter with the suspended MOB cells. The qPCR revealed that FAC surface presented the highest pmoA gene abundance, which inferred that FAC surface immobilized the most MOB biomass. The XPS and contact angle measurement indicated that the desirable surface elemental composition and stronger surface hydrophilicity of FAC might favor MOB immobilization and accordingly improve methane elimination.
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Affiliation(s)
- Meng-Ting Sun
- College of Electromechanical Engineering, Shandong Engineering Laboratory for Preparation and Application of High-Performance Carbon-Materials, Qingdao University of Science & Technology, Qingdao, China
| | - Yu-Zhong Zhao
- Shandong Industrial Engineering Laboratory of Biogas Production & Utilization, Key Laboratory of Biofuels, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, China
| | - Zhi-Man Yang
- Shandong Industrial Engineering Laboratory of Biogas Production & Utilization, Key Laboratory of Biofuels, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, China
| | - Xiao-Shuang Shi
- Shandong Industrial Engineering Laboratory of Biogas Production & Utilization, Key Laboratory of Biofuels, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, China
| | - Lin Wang
- Shandong Industrial Engineering Laboratory of Biogas Production & Utilization, Key Laboratory of Biofuels, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, China
| | - Meng Dai
- Shandong Industrial Engineering Laboratory of Biogas Production & Utilization, Key Laboratory of Biofuels, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, China
| | - Fei Wang
- College of Electromechanical Engineering, Shandong Engineering Laboratory for Preparation and Application of High-Performance Carbon-Materials, Qingdao University of Science & Technology, Qingdao, China
| | - Rong-Bo Guo
- Shandong Industrial Engineering Laboratory of Biogas Production & Utilization, Key Laboratory of Biofuels, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, China.,Dalian National Laboratory for Clean Energy, Dalian, China
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Cabral CS, Sanson AL, Afonso RJCF, Chernicharo CAL, Araújo JC. Impact of microaeration bioreactor on dissolved sulfide and methane removal from real UASB effluent for sewage treatment. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2020; 81:1951-1960. [PMID: 32666948 DOI: 10.2166/wst.2020.250] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Two bioreactors were investigated as an alternative for the post-treatment of effluent from an upflow anaerobic sludge blanket (UASB) reactor treating domestic sewage, aiming at dissolved sulfide and methane removal. The bioreactors (R-control and R-air) were operated at different hydraulic retention times (HRT; 6 and 3 h) with or without aeration. Large sulfide and methane removal efficiencies were achieved by the microaerated reactor at HRT of 6 h. At this HRT, sulfide removal efficiencies were equal to 61% and 79%, and methane removal efficiencies were 31% and 55% for R-control and R-air, respectively. At an HRT of 3 h, sulfide removal efficiencies were 22% (R-control) and 33% (R-air) and methane removal did not occur. The complete oxidation of sulfide, with sulfate formation, prevailed in both phases and bioreactors. However, elemental sulfur formation was more predominant at an HRT of 6 h than at an HRT of 3 h. Taken together, the results show that post-treatment improved the anaerobic effluent quality in terms of chemical oxygen demand and solids removal. However, ammoniacal nitrogen was not removed due to either the low concentration of air provided or the absence of microorganisms involved in the nitrogen cycle.
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Affiliation(s)
- C S Cabral
- Department of Sanitary and Environmental Engineering, Federal University of Minas Gerais, Av. Antônio Carlos 6.627, Campus Pampulha, Belo Horizonte, MG 31270-901, Brazil E-mail:
| | - A L Sanson
- Department of Chemistry, Federal University of Ouro Preto, Campus Morro do Cruzeiro, Ouro Preto, MG 35400-000, Brazil
| | - R J C F Afonso
- Department of Chemistry, Federal University of Ouro Preto, Campus Morro do Cruzeiro, Ouro Preto, MG 35400-000, Brazil
| | - C A L Chernicharo
- Department of Sanitary and Environmental Engineering, Federal University of Minas Gerais, Av. Antônio Carlos 6.627, Campus Pampulha, Belo Horizonte, MG 31270-901, Brazil E-mail:
| | - J C Araújo
- Department of Sanitary and Environmental Engineering, Federal University of Minas Gerais, Av. Antônio Carlos 6.627, Campus Pampulha, Belo Horizonte, MG 31270-901, Brazil E-mail:
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Vergara-Fernández A, Morales P, Scott F, Guerrero S, Yañez L, Mau S, Aroca G. Methane biodegradation and enhanced methane solubilization by the filamentous fungi Fusarium solani. CHEMOSPHERE 2019; 226:24-35. [PMID: 30913425 DOI: 10.1016/j.chemosphere.2019.03.116] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Revised: 03/12/2019] [Accepted: 03/17/2019] [Indexed: 06/09/2023]
Abstract
Methane is one of the most important greenhouse gases emitted from natural and human activities. It is scarcely soluble in water; thus, it has a low bioavailability for microorganisms able to degrade it. In this work, the capacity of the fungus Fusarium solani to improve the solubility of methane in water and to biodegrade methane was assayed. Experiments were performed in microcosms with vermiculite as solid support and mineral media, at temperatures between 20 and 35 °C and water activities between 0.9 and 0.95, using pure cultures of F. solani and a methanotrophic consortium (Methylomicrobium album and Methylocystis sp) as a control. Methane was the only carbon and energy source. Results indicate that using thermally inactivated biomass of F. solani, decreases the partition coefficient of methane in water up to two orders of magnitude. Moreover, F. solani can degrade methane, in fact at 35 °C and the highest water activity, the methane degradation rate attained by F. solani was 300 mg m-3 h-1, identical to the biodegradation rate achieved by the consortium of methanotrophic bacteria.
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Affiliation(s)
- Alberto Vergara-Fernández
- Green Technology Research Group, Facultad de Ingeniería y Ciencias Aplicadas, Universidad de Los Andes, Chile.
| | - Paulina Morales
- Green Technology Research Group, Facultad de Ingeniería y Ciencias Aplicadas, Universidad de Los Andes, Chile
| | - Felipe Scott
- Green Technology Research Group, Facultad de Ingeniería y Ciencias Aplicadas, Universidad de Los Andes, Chile
| | - Sichem Guerrero
- Green Technology Research Group, Facultad de Ingeniería y Ciencias Aplicadas, Universidad de Los Andes, Chile
| | - Luz Yañez
- Green Technology Research Group, Facultad de Ingeniería y Ciencias Aplicadas, Universidad de Los Andes, Chile
| | - Silvia Mau
- Escuela de Ingeniería Bioquímica, Facultad de Ingeniería, Pontificia Universidad Católica de Valparaíso, Chile
| | - Germán Aroca
- Escuela de Ingeniería Bioquímica, Facultad de Ingeniería, Pontificia Universidad Católica de Valparaíso, Chile
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Fedrizzi F, Cabana H, Ndanga ÉM, Cabral AR. Biofiltration of methane from cow barns: Effects of climatic conditions and packing bed media acclimatization. WASTE MANAGEMENT (NEW YORK, N.Y.) 2018; 78:669-676. [PMID: 32559958 DOI: 10.1016/j.wasman.2018.06.038] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Revised: 06/17/2018] [Accepted: 06/18/2018] [Indexed: 06/11/2023]
Abstract
The performance of biofiltration to mitigate CH4 emissions from cow barns was investigated in the laboratory using two flow-through columns constructed with an acclimatized packed bed media composed of inexpensive materials and readily available in an agricultural context. The biofilters were fed with artificial exhaust gas at a constant rate of 0.036 m3 h-1 and low inlet CH4 concentration (0.22 g m-3 = 300 ppm). The empty-bed residence time (EBRT) was equal to 0.21 h. Additionally, in order to simulate temperature changes under natural conditions and determine the influence of such cycles on CH4 removal efficiency, the upper part of the biofilters were submitted to temperature oscillations over time. The maximum oxidation rate (1.68 μg CH4 gdw-1h-1) was obtained with the commercial compost mixed with straw. Accordingly, it was considered as packing bed media for the biofilters. The CH4 removal efficiency was affected by the temperature prevailing within the biofilters, by the way in which the cooling-warming cycles were applied and by the acclimatization process. The shorter the cooling-warming cycles, the more oxidation rates varied. With longer cycles, CH4 removal rates stabilized and CH4 removal efficiencies attained nearly 100% in both biofilters, and remained at this level for more than 100 days, irrespective of the temperature at the top of the biofilter, which was - at times - adverse for microbiological activity. The first order rate constant for CH4 oxidation kinetics of the entire system was estimated at 15 h-1. If such rate could be transposed to real field conditions in Canada, home to nearly 945,000 dairy cows, biofiltration may be applied to efficiently abate between 2 × 106 and 3 × 106 t yr-1 of CO2 equivalent (depending on how estimates are performed) from bovine enteric fermentation alone.
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Affiliation(s)
| | - Hubert Cabana
- Environmental Engineering Laboratory, Department of Civil Engineering, Université de Sherbrooke, Sherbrooke J1K 2R1, Canada.
| | - Éliane M Ndanga
- Akvo, 6440, 13e Avenue, Montréal, Québec H1X 2Y7, Canada(1).
| | - Alexandre R Cabral
- Geoenvironmental Group, Department of Civil Engineering, University of Sherbrooke, Sherbrooke, Quebec J1K 2R1, Canada.
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Harnessing fungi to mitigate CH 4 in natural and engineered systems. Appl Microbiol Biotechnol 2018; 102:7365-7375. [PMID: 29982927 DOI: 10.1007/s00253-018-9203-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Revised: 06/26/2018] [Accepted: 06/26/2018] [Indexed: 12/13/2022]
Abstract
Methane (CH4) is a powerful greenhouse gas emitted from natural and anthropogenic sources, and its emission rates vary among sources as a function of environment, microbial respiration, and feedbacks. Biological CH4 flux from natural and engineered systems is typically represented simply as generation of CH4 by methanogens minus oxidation by methanotrophs. In many cases, however, CH4 flux is modulated by transport and solubility mechanisms that occur before oxidation or other chemical transformation. The ability of fungi to directly oxidize CH4 remains unclear; however, their hydrophobic growths extending above microbial biofilms can improve surface area and sorption of hydrophobic gases. This can improve overall oxidation rates in a biofilm simply by improving phase transfer dynamics and bioavailability to bacterial or archaeal associates. This indirect facilitation is not necessarily intuitive, but there has been a recent emerging interest in harnessing these fungal abilities in engineering bioreactors and filtration systems designed to capture and oxidize CH4. These dynamics may be playing a similar facilitative role in natural CH4 oxidation, where fungi may indirectly influence carbon mineralization and methanogen/methanotroph communities, and/or directly oxidize and dissolve gaseous CH4. This review highlights these unique roles for fungi in determining net CH4 oxidation rates, and it summarizes the potential to harness fungi to mitigate CH4 emissions.
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6
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Gómez-Borraz TL, González-Sánchez A, Bonilla-Blancas W, Revah S, Noyola A. Characterization of the biofiltration of methane emissions from municipal anaerobic effluents. Process Biochem 2017. [DOI: 10.1016/j.procbio.2017.08.011] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Cáceres M, Dorado AD, Gentina JC, Aroca G. Oxidation of methane in biotrickling filters inoculated with methanotrophic bacteria. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:25702-25712. [PMID: 27370536 DOI: 10.1007/s11356-016-7133-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2015] [Accepted: 06/20/2016] [Indexed: 06/06/2023]
Abstract
The oxidation of methane (CH4) using biofilters has been proposed as an alternative to mitigate anthropogenic greenhouse gas emissions with a low concentration of CH4 that cannot be used as a source of energy. However, conventional biofilters utilize organic packing materials that have a short lifespan, clogging problems, and are commonly inoculated with non-specific microorganisms leading to unpredictable CH4 elimination capacities (EC) and removal efficiencies (RE). The main objective of this work was to characterize the oxidation of CH4 in two biotrickling filters (BTFs) packed with polyethylene rings and inoculated with two methanotrophic bacteria, Methylomicrobium album and Methylocystis sp., in order to determine EC and CO2 production (pCO2) when using a specific inoculum. The repeatability of the results in both BTFs was determined when they operated at the same inlet load of CH4. A dynamic mathematical model that describes the CH4 abatement in the BTFs was developed and validated using mass transfer and kinetic parameters estimated independently. The results showed that EC and pCO2 of the BTFs are not identical but very similar for all the conditions tested. The use of specific inoculum has shown a faster startup and higher EC per unit area (0.019 gCH4 m-2 h-1) in comparison to most of the previous studies at the same CH4 load rate (23.2 gCH4 m-3 h-1). Global mass balance showed that the maximum reduction of CO2 equivalents was 98.5 gCO2eq m-3 h-1. The developed model satisfactorily described CH4 abatement in BTFs for a wide range of conditions.
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Affiliation(s)
- Manuel Cáceres
- School of Biochemical Engineering, Pontificia Universidad Católica de Valparaíso, Av. Brasil 2085, Valparaíso, Chile.
| | - Antonio D Dorado
- School of Biochemical Engineering, Pontificia Universidad Católica de Valparaíso, Av. Brasil 2085, Valparaíso, Chile
- Manresa School of Engineering, Universitat Politècnica de Catalunya, Av. Bases de Manresa 61-73, 08242, Manresa, Spain
| | - Juan C Gentina
- School of Biochemical Engineering, Pontificia Universidad Católica de Valparaíso, Av. Brasil 2085, Valparaíso, Chile
| | - Germán Aroca
- School of Biochemical Engineering, Pontificia Universidad Católica de Valparaíso, Av. Brasil 2085, Valparaíso, Chile
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Ferdowsi M, Ramirez AA, Jones JP, Heitz M. Methane biofiltration in the presence of ethanol vapor under steady and transient state conditions: an experimental study. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:20883-20896. [PMID: 28721620 DOI: 10.1007/s11356-017-9634-9] [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] [Received: 12/06/2016] [Accepted: 06/26/2017] [Indexed: 06/07/2023]
Abstract
Methane (CH4) removal in the presence of ethanol vapors was performed by a stone-based bed and a hybrid packing biofilter in parallel. In the absence of ethanol, a methane removal efficiency of 55 ± 1% was obtained for both biofilters under similar CH4 inlet load (IL) of 13 ± 0.5 gCH4 m-3 h-1 and an empty bed residence time (EBRT) of 6 min. The results proved the key role of the bottom section in both biofilters for simultaneous removal of CH4 and ethanol. Ethanol vapor was completely eliminated in the bottom sections for an ethanol IL variation between 1 and 11 gethanol m-3 h-1. Ethanol absorption and accumulation in the biofilm phase as well as ethanol conversion to CO2 contributed to ethanol removal efficiency of 100%. In the presence of ethanol vapor, CO2 productions in the bottom section increased almost fourfold in both biofilters. The ethanol concentration in the leachate of the biofilter exceeding 2200 gethanol m-3leachate in both biofilters demonstrated the excess accumulation of ethanol in the biofilm phase. The biofilters responded quickly to an ethanol shock load followed by a starvation with 20% decrease of their performance. The return to normal operations in both biofilters after the transient conditions took less than 5 days. Unlike the hybrid packing biofilter, excess pressure drop (up to 1.9 cmH2O m-1) was an important concern for the stone bed biofilter. The biomass accumulation in the bottom section of the stone bed biofilter contributed to 80% of the total pressure drop. However, the 14-day starvation reduced the pressure drop to 0.25 cmH2O m-1.
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Affiliation(s)
- Milad Ferdowsi
- Department of Chemical Engineering and Biotechnological Engineering, Faculty of Engineering, Université de Sherbrooke, Sherbrooke, QC, J1K 2R1, Canada
| | - Antonio Avalos Ramirez
- Department of Chemical Engineering and Biotechnological Engineering, Faculty of Engineering, Université de Sherbrooke, Sherbrooke, QC, J1K 2R1, Canada
- Centre National en Électrochimie et en Technologies Environnementales, 2263, Avenue du Collège, Shawinigan, QC, G9N 6V8, Canada
| | - Joseph Peter Jones
- Department of Chemical Engineering and Biotechnological Engineering, Faculty of Engineering, Université de Sherbrooke, Sherbrooke, QC, J1K 2R1, Canada
| | - Michèle Heitz
- Department of Chemical Engineering and Biotechnological Engineering, Faculty of Engineering, Université de Sherbrooke, Sherbrooke, QC, J1K 2R1, Canada.
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Karthikeyan OP, Saravanan N, Cirés S, Alvarez-Roa C, Razaghi A, Chidambarampadmavathy K, Velu C, Subashchandrabose G, Heimann K. Culture scale-up and immobilisation of a mixed methanotrophic consortium for methane remediation in pilot-scale bio-filters. ENVIRONMENTAL TECHNOLOGY 2017; 38:474-482. [PMID: 27267085 DOI: 10.1080/09593330.2016.1198424] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Robust methanotrophic consortia for methane (CH4) remediation and by-product development are presently not readily available for industrial use. In this study, a mixed methanotrophic consortium (MMC), sequentially enriched from a marine sediment, was assessed for CH4 removal efficiency and potential biomass-generated by-product development. Suitable packing material for bio-filters to support MMC biofilm establishment and growth was also evaluated. The enriched MMC removed ∼7-13% CH4 under a very high gas flow rate (2.5 L min-1; 20-25% CH4) in continuous-stirred tank reactors (∼10 L working volume) and the biomass contained long-chain fatty acids (i.e. C16 and C18). Cultivation of the MMC on plastic bio-balls abated ∼95-97% CH4 in pilot-scale non-sterile outdoor-operated bio-filters (0.1 L min-1; 1% CH4). Contamination by cyanobacteria had beneficial effects on treating low-level CH4, by providing additional oxygen for methane oxidation by MMC, suggesting that the co-cultivation of MMC with cyanobacterial mats does not interfere with and may actually be beneficial for remediation of CH4 and CO2 at industrial scale.
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Affiliation(s)
- Obulisamy Parthiba Karthikeyan
- a College of Science and Engineering , James Cook University , Townsville , Queensland , Australia
- b Comparative Genomics Centre , James Cook University , Townsville , Queensland , Australia
- c Department of Biology, Sino-Forest Applied Research Centre for Pearl River Delta Environment , Hong Kong Baptist University , Kowloon Tong , Hong Kong
| | - Nadarajan Saravanan
- a College of Science and Engineering , James Cook University , Townsville , Queensland , Australia
| | - Samuel Cirés
- a College of Science and Engineering , James Cook University , Townsville , Queensland , Australia
- b Comparative Genomics Centre , James Cook University , Townsville , Queensland , Australia
- e Departamento de Biología , Universidad Autónoma de Madrid , Madrid , Spain
| | - Carlos Alvarez-Roa
- a College of Science and Engineering , James Cook University , Townsville , Queensland , Australia
| | - Ali Razaghi
- a College of Science and Engineering , James Cook University , Townsville , Queensland , Australia
| | | | - Chinnathambi Velu
- a College of Science and Engineering , James Cook University , Townsville , Queensland , Australia
| | | | - Kirsten Heimann
- a College of Science and Engineering , James Cook University , Townsville , Queensland , Australia
- b Comparative Genomics Centre , James Cook University , Townsville , Queensland , Australia
- d Centre for Bio-discovery and Molecular Development of Therapeutics , James Cook University , Townsville , Queensland , Australia
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Brandt EMF, Duarte FV, Vieira JPR, Melo VM, Souza CL, Araújo JC, Chernicharo CAL. The use of novel packing material for improving methane oxidation in biofilters. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2016; 182:412-420. [PMID: 27505166 DOI: 10.1016/j.jenvman.2016.07.075] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2016] [Revised: 06/23/2016] [Accepted: 07/24/2016] [Indexed: 06/06/2023]
Abstract
The use of biofilters (working bed volume of 7.85 L) for the oxidation of CH4 at low concentrations (from 0.17%v/v to 3.63%v/v, typically in waste gas from anaerobic sewage treatment) was investigated and four empty bed residence times were tested (in min): 42.8, 29.5, 19.6, and 7.4. Mixtures of organic (composted leaves) and three non-organic materials (sponge-based material - SBM, blast furnace slag - BFS, and expanded vermiculite - ExpV) were used as packing media. Along 188 operational days after the steady state was reached (95 days for start-up), the CH4 mineralization decreased while the inlet loads gradually increased from 3.0 ± 0.8 gCH4 m(-3) h(-1) to 148.8 ± 4.4 gCH4 m(-3) h(-1). The biofilter packed with ExpV showed the best results, since the CH4 conversions decreased from 95.0 ± 5.0% to 12.7 ± 3.7% as a function of inlet concentration, compared to the other two biofilters (SBM and BFS) which showed CH4 conversions decreasing from 56.0 ± 5.4% to 3.5 ± 1.2% as a function of inlet concentration. The methanotrophic activity of biomass taken from ExpV biofilter was three times higher than the activity of biomass from the other two biofilters. Taken together, these results suggested that ExpV provides an attractive environment for microbial growth, besides the mechanical resistance provided to the whole packing media, showing the potential to its use in biofiltration of diffuse CH4 emissions.
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Affiliation(s)
- Emanuel Manfred F Brandt
- Department of Sanitary and Environmental Engineering (Departamento de Engenharia Sanitária e Ambiental - DESA), Engineering College (Escola de Engenharia), Federal University of Minas Gerais (Universidade Federal de Minas Gerais), Av. Antônio Carlos, 6627, BL 1 - sala 4623, 31270-901, Belo Horizonte, MG, Brazil.
| | - Felipe V Duarte
- Department of Sanitary and Environmental Engineering (Departamento de Engenharia Sanitária e Ambiental - DESA), Engineering College (Escola de Engenharia), Federal University of Minas Gerais (Universidade Federal de Minas Gerais), Av. Antônio Carlos, 6627, BL 1 - sala 4623, 31270-901, Belo Horizonte, MG, Brazil
| | - João Paulo R Vieira
- Department of Sanitary and Environmental Engineering (Departamento de Engenharia Sanitária e Ambiental - DESA), Engineering College (Escola de Engenharia), Federal University of Minas Gerais (Universidade Federal de Minas Gerais), Av. Antônio Carlos, 6627, BL 1 - sala 4623, 31270-901, Belo Horizonte, MG, Brazil
| | - Vinícius M Melo
- Department of Sanitary and Environmental Engineering (Departamento de Engenharia Sanitária e Ambiental - DESA), Engineering College (Escola de Engenharia), Federal University of Minas Gerais (Universidade Federal de Minas Gerais), Av. Antônio Carlos, 6627, BL 1 - sala 4623, 31270-901, Belo Horizonte, MG, Brazil
| | - Cláudio L Souza
- Department of Sanitary and Environmental Engineering (Departamento de Engenharia Sanitária e Ambiental - DESA), Engineering College (Escola de Engenharia), Federal University of Minas Gerais (Universidade Federal de Minas Gerais), Av. Antônio Carlos, 6627, BL 1 - sala 4623, 31270-901, Belo Horizonte, MG, Brazil
| | - Juliana C Araújo
- Department of Sanitary and Environmental Engineering (Departamento de Engenharia Sanitária e Ambiental - DESA), Engineering College (Escola de Engenharia), Federal University of Minas Gerais (Universidade Federal de Minas Gerais), Av. Antônio Carlos, 6627, BL 1 - sala 4623, 31270-901, Belo Horizonte, MG, Brazil
| | - Carlos Augusto L Chernicharo
- Department of Sanitary and Environmental Engineering (Departamento de Engenharia Sanitária e Ambiental - DESA), Engineering College (Escola de Engenharia), Federal University of Minas Gerais (Universidade Federal de Minas Gerais), Av. Antônio Carlos, 6627, BL 1 - sala 4623, 31270-901, Belo Horizonte, MG, Brazil
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Summary of performance data for technologies to control gaseous, odor, and particulate emissions from livestock operations: Air management practices assessment tool (AMPAT). Data Brief 2016; 7:1413-29. [PMID: 27158660 PMCID: PMC4845084 DOI: 10.1016/j.dib.2016.03.070] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2015] [Revised: 03/15/2016] [Accepted: 03/21/2016] [Indexed: 01/10/2023] Open
Abstract
The livestock and poultry production industry, regulatory agencies, and researchers lack a current, science-based guide and data base for evaluation of air quality mitigation technologies. Data collected from science-based review of mitigation technologies using practical, stakeholders-oriented evaluation criteria to identify knowledge gaps/needs and focuses for future research efforts on technologies and areas with the greatest impact potential is presented in the Literature Database tab on the air management practices tool (AMPAT). The AMPAT is web-based (available at www.agronext.iastate.edu/ampat) and provides an objective overview of mitigation practices best suited to address odor, gaseous, and particulate matter (PM) emissions at livestock operations. The data was compiled into Excel spreadsheets from a literature review of 265 papers was performed to (1) evaluate mitigation technologies performance for emissions of odor, volatile organic compounds (VOCs), ammonia (NH3), hydrogen sulfide (H2S), particulate matter (PM), and greenhouse gases (GHGs) and to (2) inform future research needs.
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Karthikeyan OP, Chidambarampadmavathy K, Nadarajan S, Heimann K. Influence of nutrients on oxidation of low level methane by mixed methanotrophic consortia. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2016; 23:4346-4357. [PMID: 26867685 DOI: 10.1007/s11356-016-6174-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2015] [Accepted: 01/25/2016] [Indexed: 06/05/2023]
Abstract
Low-level methane emissions from coal mine ventilation air (CMV-CH4; i.e., 1 % CH4) can significantly contribute to global climate change, and therefore, treatment is important to reduce impacts. To investigate CMV-CH4 abatement potential, five different mixed methanotrohic consortia (MMCs) were established from soil/sediment sources, i.e., landfill top cover soil, bio-solid compost, vegetated humus soil, estuarine and marine sediments. Enrichment conditions for MMCs were as follows: nitrate mineral salt (NMS) medium, pH ~ 6.8; 25 °C; 20-25 % CH4; agitation 200 rpm; and culture period 20 days, in mini-bench-top bioreactors. The enriched cultures were supplemented with extra carbon (methanol 0.5-1.5 %, formate 5-15 mM, and acetate 5-15 mM), nitrogen (nitrate 0.5-1.5 g L(-1), ammonium 0.1-0.5 g L(-1), or urea: 0.1-0.5 g L(-1)), and trace elements (copper 1-5 μM, iron 1-5 μM, and zinc 1-5 μM) in different batch experiments to improve low-level CH4 abatement. Average CH4 oxidation capacities (MOCs) of MMCs varied between 1.712 ± 0.032 and 1.963 ± 0.057 mg g(-1)DWbiomass h(-1). Addition of formate improved the MOCs of MMCs, but the dose-response varied for different MMCs. Acetate, nitrate and copper had no significant effect on MOCs, while addition of methanol, ammonium, urea, iron and zinc impacted negatively. Overall, MMCs enriched from marine sediments and landfill top cover soil showed high MOCs which were largely resilient to nutrient supplementation, suggesting a strong potential for biofilter development for industrial low-level CH4 abatement, such as those present in CMV.
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Affiliation(s)
- Obulisamy Parthiba Karthikeyan
- College of Marine and Environmental Sciences, James Cook University, Townsville, 4811, Queensland, Australia
- Comparative Genomics Centre, James Cook University, Townsville, 4811, Queensland, Australia
| | | | - Saravanan Nadarajan
- College of Marine and Environmental Sciences, James Cook University, Townsville, 4811, Queensland, Australia
| | - Kirsten Heimann
- College of Marine and Environmental Sciences, James Cook University, Townsville, 4811, Queensland, Australia.
- Comparative Genomics Centre, James Cook University, Townsville, 4811, Queensland, Australia.
- Centre for Bio-discovery and Molecular Development of Therapeutics, James Cook University, Townsville, 4811, Queensland, Australia.
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Greenhouse Gases Emissions from Wastewater Treatment Plants: Minimization, Treatment, and Prevention. J CHEM-NY 2016. [DOI: 10.1155/2016/3796352] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The operation of wastewater treatment plants results in direct emissions, from the biological processes, of greenhouse gases (GHG) such as carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O), as well as indirect emissions resulting from energy generation. In this study, three possible ways to reduce these emissions are discussed and analyzed:(1)minimization through the change of operational conditions,(2)treatment of the gaseous streams, and(3)prevention by applying new configurations and processes to remove both organic matter and pollutants. In current WWTPs, to modify the operational conditions of existing units reveals itself as possibly the most economical way to decrease N2O and CO2emissions without deterioration of effluent quality. Nowadays the treatment of the gaseous streams containing the GHG seems to be a not suitable option due to the high capital costs of systems involved to capture and clean them. The change of WWTP configuration by using microalgae or partial nitritation-Anammox processes to remove ammonia from wastewater, instead of conventional nitrification-denitrification processes, can significantly reduce the GHG emissions and the energy consumed. However, the area required in the case of microalgae systems and the current lack of information about stability of partial nitritation-Anammox processes operating in the main stream of the WWTP are factors to be considered.
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Oliver JP, Schilling JS. Applying trait-function relationships for microbial plant decomposition to predict medium longevity in pollution control biofilters. Appl Microbiol Biotechnol 2015; 100:2843-53. [PMID: 26590583 DOI: 10.1007/s00253-015-7134-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2015] [Revised: 10/25/2015] [Accepted: 11/01/2015] [Indexed: 10/22/2022]
Abstract
Biofilters, bioreactors used for pollution control, can effectively treat a variety of odorous and hazardous emissions, but uncertain medium longevities and associated costs limit biofilter adoption. To improve medium-life estimations for biofilter end-users, litter bags were used to compare decay rates of common biofilter medium types and test the effects of nitrogen (N) enrichment and livestock production emissions on medium decay in a full-scale biofilter over a 27-month period. Generally, "by-product" media (mulch, corn cobs) decayed faster than hardwood media, with decay of softwood media the slowest. Analysis showed nutrient content was the best predictor of early-stage decay, while carbon fractions and nutrient content best predicted medium longevity. N amendments and N-rich barn emissions were found to hasten medium decay. By identifying decay rates and rate predictors specific for biofilter media, we provide biofilter engineers and farmers with a quantitative way to improve medium selection based on the trade-offs between medium cost and replacement frequency.
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Affiliation(s)
- Jason P Oliver
- Department of Bioproducts and Biosystems Engineering, University of Minnesota, Kaufert Laboratory, 2004 Folwell Ave., St. Paul, MN, 55108, USA
| | - Jonathan S Schilling
- Department of Bioproducts and Biosystems Engineering, University of Minnesota, Kaufert Laboratory, 2004 Folwell Ave., St. Paul, MN, 55108, USA. .,Institute on the Environment, University of Minnesota, 325 LES Building, 1954 Buford Ave, St. Paul, MN, 55108, USA.
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Atmospheric methane removal by methane-oxidizing bacteria immobilized on porous building materials. Appl Microbiol Biotechnol 2013; 98:3791-800. [DOI: 10.1007/s00253-013-5403-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2013] [Revised: 11/12/2013] [Accepted: 11/12/2013] [Indexed: 10/25/2022]
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16
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Oxidation of methane by Methylomicrobium album and Methylocystis sp. in the presence of H2S and NH3. Biotechnol Lett 2013; 36:69-74. [DOI: 10.1007/s10529-013-1339-7] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2013] [Accepted: 09/05/2013] [Indexed: 10/26/2022]
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Biotechnologies for greenhouse gases (CH4, N2O, and CO2) abatement: state of the art and challenges. Appl Microbiol Biotechnol 2013; 97:2277-303. [DOI: 10.1007/s00253-013-4734-z] [Citation(s) in RCA: 94] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2012] [Revised: 01/20/2013] [Accepted: 01/21/2013] [Indexed: 12/17/2022]
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