Two-stage pretreatment of excess sludge for electricity generation in microbial fuel cell

被引：6

作者：

Zhang, Yi ^{[1
]}

Zhao, Yang-Guo ^{[1
,2
]}

Guo, Liang ^{[1
,2
]}

Gao, Mengchun ^{[1
,2
]}

机构：

[1] Ocean Univ China, Coll Environm Sci & Engn, Shandong Prov Key Lab Marine Environm & Geol Engn, Qingdao 266100, Shandong, Peoples R China

[2] Ocean Univ China, Minist Educ, Key Lab Marine Environm & Ecol, Qingdao 266100, Shandong, Peoples R China

来源：

ENVIRONMENTAL TECHNOLOGY | 2019年 / 40卷 / 11期

关键词：

Microbial fuel cell; excess sludge; thermophilic bacteria; electricity production; Shewanella baltica; SP-NOV; GEN; NOV; ANODIC BIOFILM; BACTERIA; CATHODE; SOLUBILIZATION; PERFORMANCE;

D O I：

10.1080/09593330.2017.1422548

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Thermophiles hydrolysis and acidogens fermentation were sequentially adopted to pretreat excess sludge for microbial fuel cell (MFC) electricity production. The results indicated that MFC fed with the thermophiles-acidogens pretreated sludge (MFC AB), reached a higher removal of ammonia nitrogen than the MFC fed with the heating hydrolysis and acidogens fermentation pretreated sludge (MFC NB). However, compared with the MFC AB, MFC NB presented a better performance for removal of soluble chemical oxygen demand (SCOD) (90.08%) and protein (82.42%). As for the electricity production, MFC NB obtained higher voltage of 0.632V and maximum power density with 1.05W/m(3) while MFC AB reached maximum voltage of 0.373V and maximum power density of 0.58W/m(3). Bacterial 16S rRNA-based molecular microbial techniques showed that microbial communities on both MFC anode biofilms was diverse and different. The cooperation of fermentation bacteria and electricigen Shewanella baltica in the MFC NB may have contributed towards the improvement of electricity generation.

引用

页码：1349 / 1358

页数：10

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