Continuous flow, large-scale, microbial fuel cell system for the sustained treatment of swine waste

被引：51

作者：

Babanova, Sofia ^{[1
]}

Jones, Jason ^{[1
]}

Phadke, Sujal ^{[2
]}

Lu, Mengqian ^{[1
]}

Angulo, Carlo ^{[3
]}

Garcia, Jaime ^{[3
]}

Carpenter, Kayla ^{[2
]}

Cortese, Rachel ^{[2
]}

Chen, Shing ^{[1
]}

Tony Phan ^{[1
]}

Bretschger, Orianna ^{[1
]}

机构：

[1] Aquacycl LLC, San Diego, CA 92111 USA

[2] J Craig Venter Inst, La Jolla, CA USA

[3] D4C Prod Dev, San Diego, CA USA

来源：

WATER ENVIRONMENT RESEARCH | 2020年 / 92卷 / 01期

关键词：

microbial fuel cells; pilot-scale demonstration; swine wastewater; wastewater treatment; WATER TREATMENT; REMOVAL; BIOELECTRICITY; GENERATION; RECOVERY; CARBON; STACK;

D O I：

10.1002/wer.1183

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Microbial fuel cells (MFCs) have long held the promise of being a cost-effective technology for the energy-neutral treatment of wastewater. However, successful pilot-scale demonstrations for this technology are still limited to very few. Here, we present a large-scale MFC system, composed of 12 MFCs with a total volume of 110 L, successfully treating swine wastewater at a small educational farm. The system was operated for over 200 days in continuous mode with hydraulic residence time of 4 hr. Very stable electrochemical and waste treatment performance was observed with up to 65% of chemical oxygen demand (COD) removed and a maximum treatment rate of 5.0 kg COD/m(3).day. Robust microbial enrichment was performed and adapted to metabolize and transform a diversity of compounds present. The Net Energy Recovery (NER = 0.11 kWhr/kg COD) is not only competitive with conventional cogeneration processes, but is in fact sufficient to sustain the operational energy requirements of the system. (C) 2019 Water Environment Federation

引用

页码：60 / 72

页数：13

共 27 条

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