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Enhanced energy production and biological treatment of swine wastewater using anaerobic membrane bioreactor: Fouling mechanism and microbial community.
Pu, Yunhui; Tang, Jialing; Zeng, Ting; Hu, Yisong; Wang, Qingyuan; Huang, Jin; Pan, Shengwang; Wang, Xiaochang C; Li, Yuyou; Hao Ngo, Huu; Abomohra, Abdelfatah.
Afiliação
  • Pu Y; School of Architecture and Civil Engineering, Chengdu University, Chengdu 610106, China; Institute of New Energy and Low-carbon Technology, Sichuan University, Chengdu 610225, China.
  • Tang J; School of Architecture and Civil Engineering, Chengdu University, Chengdu 610106, China; Key Lab of Northwest Water Resource, Environment and Ecology, MOE, Xi'an University of Architecture and Technology, Xi'an 710055, China. Electronic address: tangjialing88@126.com.
  • Zeng T; Key Lab of Northwest Water Resource, Environment and Ecology, MOE, Xi'an University of Architecture and Technology, Xi'an 710055, China.
  • Hu Y; Key Lab of Northwest Water Resource, Environment and Ecology, MOE, Xi'an University of Architecture and Technology, Xi'an 710055, China.
  • Wang Q; School of Architecture and Civil Engineering, Chengdu University, Chengdu 610106, China.
  • Huang J; School of Architecture and Civil Engineering, Chengdu University, Chengdu 610106, China.
  • Pan S; School of Architecture and Civil Engineering, Chengdu University, Chengdu 610106, China.
  • Wang XC; Key Lab of Northwest Water Resource, Environment and Ecology, MOE, Xi'an University of Architecture and Technology, Xi'an 710055, China.
  • Li Y; Department of Civil and Environmental Engineering, Tohoku University, Sendai 9808579, Japan.
  • Hao Ngo H; Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, Sydney, NSW 2007, Australia.
  • Abomohra A; School of Architecture and Civil Engineering, Chengdu University, Chengdu 610106, China.
Bioresour Technol ; 362: 127850, 2022 Oct.
Article em En | MEDLINE | ID: mdl-36031130
ABSTRACT
This study aimed to reveal the membrane fouling mechanisms during anaerobic membrane bioreactor (AnMBR) operation for swine wastewater treatment under different organic loading rates (OLR). Results showed that AnMBR could achieve high pollutant removal (71.9-83.6 %) and energy recovery (0.18-0.23 L-CH4/g-COD) at an OLR range of 0.25-0.5 g-COD/g-VSS.d, realizing energy production. However, higher OLR would aggravate the membrane fouling due to accumulation of fine sludge particles, organic foulants, and extracellular polymeric substances (EPS) on cake layer. Based on the high-throughput sequencing, microbial communities significantly changed and fouling-causing bacteria (e.g. Pseudomonas, Methanosarcina and Methanothrix) enriched in the cake layer at higher OLR conditions, leading to lower membrane permeability. Backwash can effectively remove the cake layer from the membrane surface and recover membrane permeability. The present study provides important information about membrane fouling and microbial information that could have significant impact on large-scale AnMBR application.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Águas Residuárias / Microbiota Limite: Animals Idioma: En Ano de publicação: 2022 Tipo de documento: Article
Texto completo
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Águas Residuárias / Microbiota Limite: Animals Idioma: En Ano de publicação: 2022 Tipo de documento: Article