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Efficiency and key functional genera responsible for simultaneous methanation and bioelectricity generation within a continuous stirred microbial electrolysis cell (CSMEC) treating food waste.
Quashie, Frank Koblah; Feng, Kun; Fang, Anran; Agorinya, Sarah; Antwi, Philip; Kabutey, Felix Tetteh; Xing, Defeng.
Afiliação
  • Quashie FK; State Key Laboratory of Urban Water Resources and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China; Nuclear Application Centre (NAC), National Nuclear Research Institute (NNRI), Ghana Atomic Energy Commission (GAEC), P.O. Box LG 80, Legon, Ghana. Electronic ad
  • Feng K; State Key Laboratory of Urban Water Resources and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China.
  • Fang A; State Key Laboratory of Urban Water Resources and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China.
  • Agorinya S; State Key Laboratory of Urban Water Resources and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China.
  • Antwi P; Jiangxi Key Laboratory of Mining & Metallurgy Environmental Pollution Control, School of Resources and Environmental Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, China.
  • Kabutey FT; State Key Laboratory of Urban Water Resources and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China.
  • Xing D; State Key Laboratory of Urban Water Resources and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China. Electronic address: dxing@hit.edu.cn.
Sci Total Environ ; : 143746, 2020 Nov 16.
Artigo em Inglês | MEDLINE | ID: mdl-33229085
ABSTRACT
This study reveals the efficient treatment of high strength food waste under varying hydraulic retention times (48 h, 36 h and 24 h) in a continuous stirred tank reactor (CSTR) integrated with microbial electrolysis cell (MEC) to become a continuous stirred microbial electrolysis cell (CSMEC). COD removal efficiency in the CSMEC surpassed 92% with OLR ranging from 0.4 to 21.31 kg COD/m3·d compared to that of the CSTR. The maximum current density (based on the cathode surface area) was 1125.35 ± 81 mA/m2 in the CSMEC. Biogas yield and methane production rates increased by 16.5% and 19.3% in the CSMEC respectively compared to the CSTR. CSMEC was 1.52 times better in performance compared to the CSTR. Firmicutes, Synergistetes, Bacteroidetes, Thermotogae, Chloroflexi and Proteobacteria were the dominant phyla associated with both CSMEC and CSTR. Archaeal microbial community analysis showed Methanosaeta, Methanobacterium, Methanosarcina and Methanocorpusculum as the dominant genus associated with the CSMEC.
Texto completo: Disponível Coleções: Bases de dados internacionais Base de dados: MEDLINE Idioma: Inglês Revista: Sci Total Environ Ano de publicação: 2020 Tipo de documento: Artigo

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Texto completo: Disponível Coleções: Bases de dados internacionais Base de dados: MEDLINE Idioma: Inglês Revista: Sci Total Environ Ano de publicação: 2020 Tipo de documento: Artigo
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