Enhanced methane producing microbial electrolysis cells for wastewater treatment using poly(neutral red) and chitosan modified electrodes

被引：20

作者：

Seelajaroen, Hathaichanok ^{[1
]}

Spiess, Sabine ^{[2
,3
]}

Haberbauer, Marianne ^{[2
,3
]}

Hassel, Melissa Maki ^{[3
]}

Aljabour, Abdalaziz ^{[1
]}

Thallner, Sophie ^{[2
,3
]}

Guebitz, Georg M. ^{[3
,4
]}

Sariciftci, Niyazi Serdar ^{[1
]}

机构：

[1] Johannes Kepler Univ Linz, Linz Inst Organ Solar Cells LIOS, Inst Phys Chem, Altenberger Str 69, A-4040 Linz, Austria

[2] K1 MET GmbH, Stahlstr 14, A-4020 Linz, Austria

[3] Acib GmbH, Austrian Ctr Ind Biotechnol, Krenngasse 37-2, A-8010 Graz, Austria

[4] Univ Nat Resources & Life Sci Vienna, Inst Environm Biotechnol, Dept Agrobiotechnol, Konrad Lorenz Str 20, A-3430 Tulln An Der Donau, Austria

来源：

SUSTAINABLE ENERGY & FUELS | 2020年 / 4卷 / 08期

关键词：

FUEL-CELLS; CARBON-DIOXIDE; ELECTRICITY-GENERATION; NEUTRAL RED; REDUCTIVE DECHLORINATION; POWER PRODUCTION; ANODE; PERFORMANCE; CONVERSION; ELECTROSYNTHESIS;

D O I：

10.1039/d0se00770f

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Microbial electrolysis cells (MECs) consisting of a bioanode and biocathode offer a promising solution for wastewater treatment. These systems can degrade organic substances at the bioanode while converting carbon dioxide (CO<INF>2</INF>), a major greenhouse gas, to a value-added fuel, methane (CH<INF>4</INF>) at the biocathode. The bioelectrodes were inoculated with a mixed culture under anaerobic conditions. By applying a constant potential of 0.40 Vvs.Ag/AgCl (3 M NaCl), the long-term performance of MECs has been studied by monitoring the removal of chemical oxygen demand (COD) in the anolyte which contained synthetic wastewater and CH<INF>4</INF>generation in the cathode chamber. To investigate the effect of electrode modification, poly(neutral red) and chitosan modified carbon felt electrodes were prepared, and applied in MECs. The results revealed that MECs with modified electrodes showed remarkably enhanced overall performance. The average COD removal efficiency, faradaic efficiency towards CO<INF>2</INF>reduction to CH<INF>4</INF>and CH<INF>4</INF>production yield of modified MECs were up to 67%, 55% and 0.14 L<INF>CH<INF>4</INF></INF>/g<INF>COD</INF>, respectively.

引用

页码：4238 / 4248

页数：11

共 69 条

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