Enhanced methane production coupled with livestock wastewater treatment using anaerobic membrane bioreactor: Performance and membrane filtration properties

Jialing Tang; Yunhui Pu; Ting Zeng; Yisong Hu; Jin Huang; Shengwang Pan; Xiaochang C Wang; Yuyou Li; Abd El-Fatah Abomohra

doi:10.1016/j.biortech.2021.126470

Enhanced methane production coupled with livestock wastewater treatment using anaerobic membrane bioreactor: Performance and membrane filtration properties

Bioresour Technol. 2022 Feb:345:126470. doi: 10.1016/j.biortech.2021.126470. Epub 2021 Dec 2.

Authors

Jialing Tang¹, Yunhui Pu², Ting Zeng³, Yisong Hu⁴, Jin Huang⁵, Shengwang Pan⁵, Xiaochang C Wang⁴, Yuyou Li⁶, Abd El-Fatah Abomohra⁷

Affiliations

¹ Department of Environmental Engineering, 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.
² Department of Environmental Engineering, School of Architecture and Civil Engineering, Chengdu University, Chengdu 610106, China; Institute of New Energy and Low-carbon Technology, Sichuan University, Chengdu 610225, Sichuan, China.
³ Key Lab of Northwest Water Resource, Environment and Ecology, MOE, Xi'an University of Architecture and Technology, Xi'an 710055, China.
⁴ Key Lab of Northwest Water Resource, Environment and Ecology, MOE, Xi'an University of Architecture and Technology, Xi'an 710055, China; International Science & Technology Cooperation Center for Urban Alternative Water Resources Development, Xi'an 710055, China.
⁵ Department of Environmental Engineering, School of Architecture and Civil Engineering, Chengdu University, Chengdu 610106, China.
⁶ Department of Civil and Environmental Engineering, Tohoku University, Sendai 9808579, Japan.
⁷ Department of Environmental Engineering, School of Architecture and Civil Engineering, Chengdu University, Chengdu 610106, China. Electronic address: abomohra@cdu.edu.cn.

PMID: 34863846
DOI: 10.1016/j.biortech.2021.126470

Abstract

The present study introduced a new method for enhanced biomethane production and pollution control of swine wastewater (SW) using anaerobic membrane bioreactor (AnMBR). Results confirmed 35 °C as the optimum temperature for enhanced anaerobic digestion which resulted in relatively higher methane production rate and potential. In AnMBR system, robust pollutants removal and conversion rate were achieved under various hydraulic retention time (HRT) ranging from 20 to 10 days, while the highest methane yield (0.24 L/g-COD_removed) and microbial activity (6.65 mg-COD/g-VSS·h) were recorded at HRT of 15 days. Reduction of HRT to 10 days resulted in serious membrane fouling due to accumulation of extracellularpolymericsubstances(EPS) and cake layer on the membrane. However, cake layer as the dominant membrane foulant could be effectively removed through periodic physical backwash to recover the membrane permeability. Overall, the suggested AnMBR is a promising technology to enhance SW treatment and energy recovery.

Keywords: Anaerobic membrane bioreactor (AnMBR); Biomethane; Membrane fouling; Swine wastewater; Waste-to-Energy.

MeSH terms

Anaerobiosis
Animals
Bioreactors
Livestock*
Membranes, Artificial
Methane
Swine
Waste Disposal, Fluid
Wastewater
Water Purification*

Substances

Membranes, Artificial
Waste Water
Methane