Activated carbon clogging analysis in an integration of constructed wetland with microbial fuel cell
Qiao Yang, Chao Gao, Zhenhua Wu, Shengna Liang +1
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Abstract
Constructed wetland (CW) is a low cost and easy operation process for wastewater treatment, while filler clogging is one of the disadvantages for this technology. Using activated carbon as the filler, a regular CW and an integration of constructed wetland with microbial fuel cell (CW-MFC) were constructed. After continuous operation of four months, specific surface area and pore size distribution of the activated carbon were analyzed. The specific surface area of the fresh activated carbon was 133.8 m 2 /g, while the filler in the CW and CW-MFC systems had specific surface area of 38.1 m 2 /g and 58.2 m 2 /g. The surface decrease of the CW-MFC filler was 21% lower than that of CW filler. Comparing with the regular CW, the filler in the CW-MFC was more clogging resistant. The alleviation of the filler clogging in CW-MFC may be caused by the micro-electric field as the function of MFC. CW-MFC is a promising microbial electrochemical technology for wastewater treatment and filler clogging resistant, there are some detailed issues deserve to be further researched.
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Identifiers
- Journal
- E3S Web of Conferences
- Year
- 2018