Electricity production and evolution of microbial community in the constructed wetland-microbial fuel cell

被引：269

作者：

Xu, Fei ^{[1
]}

Cao, Fu-qian ^{[1
]}

Kong, Qiang ^{[1
]}

Zhou, Lu-lu ^{[1
]}

Yuan, Qing ^{[1
]}

Zhu, Ya-jie ^{[1
]}

Wang, Qian ^{[1
]}

Du, Yuan-da ^{[1
]}

Wang, Zhi-de ^{[2
]}

机构：

[1] Shandong Normal Univ, Univ Shandong, Collaborat Innovat Ctr Human Nat & Green Dev, Coll Geog & Environm, Jinan 250014, Shandong, Peoples R China

[2] Rushan 2 Middle Sch, Weihai 264500, Peoples R China

来源：

CHEMICAL ENGINEERING JOURNAL | 2018年 / 339卷

基金：

中国国家自然科学基金;

关键词：

Constructed wetland; Electricity production performance; Microbial diversity; Microbial fuel cell; Wastewater treatment; WASTE-WATER TREATMENT; ACTIVATED-SLUDGE; REMOVAL; GENERATION; FLOW; PLANT; BATCH; PERFORMANCE; TECHNOLOGY; NITROGEN;

D O I：

10.1016/j.cej.2018.02.003

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Constructed wetlands combined with microbial fuel cell (CW-MFC) could purify the wastewater while using microorganisms to generate electricity. Our study investigated pollutant removal and microorganism evolution in CW and CW-MFC. The average removal rate of total nitrogen (82.46 +/- 4.74%) in the CW-MFC was highly significant (p < 0.01) higher than that in the CW. The average removal rate of chemical oxygen demand (82.32 +/- 12.85%) and total phosphorus (95.06 +/- 5.45%) in the CW-MFC were higher than those in the CW. In the CW-MFC, the average voltage was 265.77 +/- 12.66 mV and the highest power density was 3714.08 mW center dot m(-2). The microbial community diversity and richness of the CW-MFC system were higher than those of the CW system. The read number of ammonia oxidizing (149 +/- 7), nitrite-oxidizing (144 +/- 8, 132 +/- 18) and anammox bacteria (281 +/- 8) were the highest in the CW-MFC (Anode). The contents of denitrification, dissimilatory nitrate reduction to ammonium, and electrochemically active bacteria in the CW-MFC (Cathode) were significantly (p < 0.05) higher than others.

引用

页码：479 / 486

页数：8

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