Pre-treatment of anodic inoculum with nitroethane to improve performance of a microbial fuel cell | Zendy

P. P. Rajesh | Zendy; Md Tabish Noori | Zendy; Makarand M. Ghangrekar | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

Pre-treatment of anodic inoculum with nitroethane to improve performance of a microbial fuel cell

Author(s) -

P. P. Rajesh,

Md Tabish Noori,

Makarand M. Ghangrekar

Publication year - 2018

Publication title -

water science and technology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.406

H-Index - 137

eISSN - 1996-9732

pISSN - 0273-1223

DOI - 10.2166/wst.2018.206

Subject(s) - nitroethane , microbial fuel cell , fermentation , methanogenesis , chemistry , acidogenesis , anode , linear sweep voltammetry , anaerobic digestion , pulp and paper industry , food science , microbiology and biotechnology , biochemistry , cyclic voltammetry , biology , organic chemistry , methane , electrochemistry , electrode , catalysis , engineering

Methanogenic substrate loss is reported to be a major bottleneck in microbial fuel cell (MFC), which significantly reduces the power production capacity and coulombic efficiency (CE) of this system. Nitroethane is found to be a potent inhibitor of hydrogenotrophic methanogens in rumen fermentation process. Influence of nitroethane pre-treated sewage sludge inoculum on suppressing the methanogenic activity and enhancing the electrogenesis in MFC was evaluated. MFC inoculated with nitroethane pre-treated anodic inoculum demonstrated a maximum operating voltage of 541 mV, with CE and maximum volumetric power density of 39.85% and 20.5 W/m 3 , respectively. Linear sweep voltammetry indicated a higher electron discharge on the anode surface due to enhancement of electrogenic activity while suppressing methanogenic activity. A 63% reduction in specific methanogenic activity was observed in anaerobic sludge pre-treated with nitroethane, emphasizing the significance of this pre-treatment for suppressing methanogenesis and its utility for enhancing electricity generation in MFC.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research