Bioremediation of steel plant wastewater and enhanced electricity generation in microbial desalination cell | Zendy

Omkar Shinde | Zendy; Ankita Bansal | Zendy; Angela Banerjee | Zendy; Supriya Sarkar | Zendy

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Bioremediation of steel plant wastewater and enhanced electricity generation in microbial desalination cell

Author(s) -

Omkar Shinde,

Ankita Bansal,

Angela Banerjee,

Supriya Sarkar

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.2018.126

Subject(s) - pseudomonas putida , wastewater , microbial fuel cell , desalination , sewage treatment , activated sludge , waste management , phenol , chemistry , pulp and paper industry , microbial consortium , bioremediation , environmental engineering , environmental science , microorganism , anode , bacteria , biology , engineering , membrane , biochemistry , organic chemistry , electrode , genetics , enzyme

Microbial desalination cell (MDC) is a propitious technology towards water desalination by utilizing wastewater as an energy source. In this study, a multi-chambered MDC was used to bioremediate steel plant wastewater using the same wastewater as a fuel for anodic bacteria. A pure culture of Pseudomonas putida MTCC 1194 was isolated and inoculated to remove toxic phenol. Three different inoculum conditions, namely P. putida (INC-A), a mixture of P. putida and activated sludge (INC-B), and activated sludge alone (INC-C) were employed in an anodic chamber to mainly compare the electricity generation and phenol degradation in MDCs. The study revealed the maximum phenol removal of 82 ± 2.4%, total dissolved solids (TDS) removal of 68 ± 1.5%, and power generation of 10.2 mW/m 2 using INC-B. The synergistic interactions between microorganisms, can enhance the toxic phenol degradation and also electricity generation in MDC for onsite wastewater application.

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