榨菜废水MFC多周期运行产电性能及COD降解

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Abstract

Mustard tuber wastewater was utilized in a dual-chamber microbial fuel cell (MFC) to achieve simultaneous bio-energy recovery and pollutant removal. The multi-cycle performance of MFC using high strength mustard tuber wastewater were in stable batch operation with a 1000Ω external resistor. The maximum power density of 7.44W/m³were observed in the fifth cycle, and the according internal resistance, open circuit voltage, COD removal and columbic efficiency were 88Ω, 746mV, (65±2.5)% and (19.3±1)%, respectively. COD removal continuously increased to (73 ±3.3)%, the maximum rate, in the eighth cycle after start-up; meanwhile, the rapid increase of columbic efficiency till (19.3±1)% in the fifth cycle were followed by the slow declination. PH values of the anode effluent continuously decreased during the operation leading to the acidification. A sustainable power generation was able to be achieved with a 500Ω external resistor. An overshoot was also observed in power curves in the multi-cycle operation.

Key words： microbial fuel cell mustard tuber wastewater multi-cycle performance sustainable power power overshoot

Received: 04 August 2016

PACS:

X703.5

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	Articles by authors
	FU Guo-kai
	ZHANG Lin-fang
	GUO Fei
	LIU Jin
	ZHANG Zhi

Cite this article:

FU Guo-kai,ZHANG Lin-fang,GUO Fei等. Electricity generation and COD removal of MFC using mustard tuber wastewater as substrate in multi-cycle running[J]. CHINA ENVIRONMENTAL SCIENCECE, 2017, 37(4): 1401-1407.

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http://manu36.magtech.com.cn/Jweb_zghjkx/EN/ OR http://manu36.magtech.com.cn/Jweb_zghjkx/EN/Y2017/V37/I4/1401

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