Enhanced treatment of land fill leachate with cathodic algal bio film and oxygen -consuming unit in a hybrid microbial fuel cell system

被引：25

作者：

Elmaadawy, Khaled ^{[1
,2
]}

Hu, Jingping ^{[1
,2
]}

Guo, Shengxia ^{[1
,2
]}

Hou, Huijie ^{[1
]}

Xu, Jikun ^{[3
]}

Wang, Dongliang ^{[1
,2
]}

Liang, Ting ^{[1
,2
]}

Yang, Jiakuan ^{[1
,2
]}

Liang, Sha ^{[1
]}

Xiao, Keke ^{[1
,2
]}

Liu, Bingchuan ^{[1
,2
]}

机构：

[1] Huazhong Univ Sci & Technol HUST, Sch Environm Sci & Engn, Wuhan 430074, Hubei, Peoples R China

[2] Hubei Prov Engn Lab Solid Waste Treatment Disposa, 1037 Luoyu Rd, Wuhan 430074, Hubei, Peoples R China

[3] Wuhan Univ Sci & Technol, Sch Chem & Chem Engn, Wuhan 430081, Peoples R China

来源：

BIORESOURCE TECHNOLOGY | 2020年 / 310卷

关键词：

WASTE-WATER TREATMENT; DISSOLVED ORGANIC MATTERS; ELECTROCHEMICAL PERFORMANCE; ELECTRICITY; REMOVAL; BIOFILM; BIODEGRADATION; GENERATION; NUTRIENT; DENITRIFICATION;

D O I：

10.1016/j.biortech.2020.123420

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

An innovative cathodic algal biofilm microbial fuel cell equipped with a bioactive oxygen consuming unit (AB-OCU-MFC) was proposed for enhancing the leachate treatment containing biorefractory organic matters and high strength of ammonium nitrogen. The proposed AB-OCU-MFC performed better with regard to COD, NH4+-N, TN removals and algal biomass yield than standalone algal biofilm-MFC and control reactors. AB-OCU-MFC with OCU of 2 cm thickness removed more than 86% of COD, 89.4% of NH4+-N, 76.7% of TN and produced a maximum voltage of 0.39 V and biomass productivity of 1.23 g·L−1·d−1. The High-throughput sequencing of DNA showed a significant change in microbial community of reactors implemented with OCU, in which the ratio of exoelectrogenic bacteria of anode and denitrifying bacteria on cathode were significantly increased. The results obtained by cathodic algal biofilm MFC with low cost and bioactive barrier of OCU, would provide a new sight for practical application of MFC. © 2020 Elsevier Ltd

引用

页数：11

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