Enhanced nitrogen removal in bio-electrochemical systems by pH control

被引：90

作者：

Clauwaert, Peter ^{[1
]}

Desloover, Joachim ^{[1
]}

Shea, Caitlyn ^{[2
]}

Nerenberg, Rob ^{[2
]}

Boon, Nico ^{[1
]}

Verstraete, Willy ^{[1
]}

机构：

[1] Univ Ghent, LabMET, B-9000 Ghent, Belgium

[2] Univ Notre Dame, Dept Civil Engn & Geol Sci, Notre Dame, IN 46556 USA

来源：

BIOTECHNOLOGY LETTERS | 2009年 / 31卷 / 10期

关键词：

Bio-catalyzed cathode; Energy recovery; Microbial electrolysis cell; Microbial fuel cell; Wastewater; MICROBIAL FUEL-CELLS; BIOLOGICAL DENITRIFICATION; ELECTRICITY-GENERATION; WASTE-WATER; BIOCATHODE; REDUCTION; MEMBRANE; CULTURE; H-2;

D O I：

10.1007/s10529-009-0048-8

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

Microbial fuel cells can be designed to remove nitrogenous compounds out of wastewater, but their performance is at present limited to 0.33 kg NO3 (-)-Nm(-3) net cathode compartment (NCC) d(-1). By maintaining the pH in the cathode at 7.2, nitrogen removal was increased from 0.22 to 0.50 kg NO3 (-)-Nm(-3) NCC d(-1). Bio-electrochemical active microorganisms seem to struggle with the deterioration of their own environment due to slow proton fluxes. Therefore, the results suggest that an appropriate pH adjustment strategy is necessary to allow a sustained and enhanced biological activity in bio-electrochemical systems.

引用

收藏

页码：1537 / 1543

页数：7

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