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Dias MF, Colturato LF, de Oliveira JP, Leite LR, Oliveira G, Chernicharo CA, de Araújo JC. Metagenomic analysis of a desulphurisation system used to treat biogas from vinasse methanisation. BIORESOURCE TECHNOLOGY 2016; 205:58-66. [PMID: 26803795 DOI: 10.1016/j.biortech.2016.01.007] [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: 11/04/2015] [Revised: 01/03/2016] [Accepted: 01/05/2016] [Indexed: 06/05/2023]
Abstract
We investigated the response of microbial community to changes in H2S loading rate in a microaerated desulphurisation system treating biogas from vinasse methanisation. H2S removal efficiency was high, and both COD and DO seemed to be important parameters to biomass activity. DGGE analysis retrieved sequences of sulphide-oxidising bacteria (SOB), such as Thioalkalimicrobium sp. Deep sequencing analysis revealed that the microbial community was complex and remained constant throughout the experiment. Most sequences belonged to Firmicutes and Proteobacteria, and, to a lesser extent, Bacteroidetes, Chloroflexi, and Synergistetes. Despite the high sulphide removal efficiency, the abundance of the taxa of SOB was low, and was negatively affected by the high sulphide loading rate.
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Affiliation(s)
- Marcela França Dias
- Department of Sanitary and Environmental Engineering, Federal University of Minas Gerais, Antonio Carlos Avenue, 6627, Belo Horizonte, Minas Gerais State 31270-90, Brazil
| | - Luis Felipe Colturato
- Department of Sanitary and Environmental Engineering, Federal University of Minas Gerais, Antonio Carlos Avenue, 6627, Belo Horizonte, Minas Gerais State 31270-90, Brazil; Methanum Waste and Energy, Alameda do Ingá, 840, Room 908, Vale do Sereno, Nova Lima, Minas Gerais State 34.000-000, Brazil
| | - João Paulo de Oliveira
- Methanum Waste and Energy, Alameda do Ingá, 840, Room 908, Vale do Sereno, Nova Lima, Minas Gerais State 34.000-000, Brazil
| | - Laura Rabelo Leite
- Genomics and Computational Biology Group, René Rachou Research Center, Oswaldo Cruz Foundation, Augusto de Lima Avenue, 1717, Belo Horizonte, Minas Gerais State 30.190-002, Brazil
| | - Guilherme Oliveira
- Genomics and Computational Biology Group, René Rachou Research Center, Oswaldo Cruz Foundation, Augusto de Lima Avenue, 1717, Belo Horizonte, Minas Gerais State 30.190-002, Brazil
| | - Carlos Augusto Chernicharo
- Department of Sanitary and Environmental Engineering, Federal University of Minas Gerais, Antonio Carlos Avenue, 6627, Belo Horizonte, Minas Gerais State 31270-90, Brazil
| | - Juliana Calabria de Araújo
- Department of Sanitary and Environmental Engineering, Federal University of Minas Gerais, Antonio Carlos Avenue, 6627, Belo Horizonte, Minas Gerais State 31270-90, Brazil.
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Watkins DW, de Moraes MMGA, Asbjornsen H, Mayer AS, Licata J, Lopez JG, Pypker TG, Molina VG, Marques GF, Carneiro ACG, Nuñez HM, Önal H, da Nobrega Germano B. Bioenergy Development Policy and Practice Must Recognize Potential Hydrologic Impacts: Lessons from the Americas. ENVIRONMENTAL MANAGEMENT 2015; 56:1295-1314. [PMID: 25813630 DOI: 10.1007/s00267-015-0460-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2014] [Accepted: 03/19/2015] [Indexed: 06/04/2023]
Abstract
Large-scale bioenergy production will affect the hydrologic cycle in multiple ways, including changes in canopy interception, evapotranspiration, infiltration, and the quantity and quality of surface runoff and groundwater recharge. As such, the water footprints of bioenergy sources vary significantly by type of feedstock, soil characteristics, cultivation practices, and hydro-climatic regime. Furthermore, water management implications of bioenergy production depend on existing land use, relative water availability, and competing water uses at a watershed scale. This paper reviews previous research on the water resource impacts of bioenergy production-from plot-scale hydrologic and nutrient cycling impacts to watershed and regional scale hydro-economic systems relationships. Primary gaps in knowledge that hinder policy development for integrated management of water-bioenergy systems are highlighted. Four case studies in the Americas are analyzed to illustrate relevant spatial and temporal scales for impact assessment, along with unique aspects of biofuel production compared to other agroforestry systems, such as energy-related conflicts and tradeoffs. Based on the case studies, the potential benefits of integrated resource management are assessed, as is the need for further case-specific research.
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Affiliation(s)
- David W Watkins
- Department of Civil and Environmental Engineering, Michigan Technological University, Houghton, MI, USA.
| | | | - Heidi Asbjornsen
- Department of Natural Resources and Environment, University of New Hampshire, Durham, NH, USA
| | - Alex S Mayer
- Department of Civil and Environmental Engineering, Michigan Technological University, Houghton, MI, USA
| | - Julian Licata
- Instituto Nacional de Tecnología Agropecuraria, Buenos Aires, Argentina
| | - Jose Gutierrez Lopez
- Department of Natural Resources and Environment, University of New Hampshire, Durham, NH, USA
| | - Thomas G Pypker
- Department of Natural Resource Science, Thompson Rivers University, Kamloops, BC, Canada
| | - Vivianna Gamez Molina
- Department of Civil, Environmental, and Sustainable Engineering, Arizona State University, Tempe, AZ, USA
| | - Guilherme Fernandes Marques
- Department of Civil Engineering, Instituto de Pesquisas Hidráulicas (IPH), Universidade Federal Do Rio Grande do Sul, Porto Alegre, Brazil
| | | | - Hector M Nuñez
- Department of Economics, Centro de Investigación y Docencia Económicas (CIDE), Aguascalientes, Mexico
| | - Hayri Önal
- Department of Agricultural and Consumer Economics, University of Illinois at Urbana-Champaign, Champaign, IL, USA
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