Simultaneous treatment and energy production from PIW using electro coagulation & microbial fuel cell. Issue 4 (December 2016)

• Record Type: Journal Article
• Authors: Shankar, Ravi; Varma, Anil Kumar; Mondal, Prasenjit; Chand, Shri
• Is Part Of: Journal of environmental chemical engineering. Volume 4:Issue 4(2016:Dec.)Part A
• Page Start: 4612
• Page End: 4618
• Publication Date: 2016-12
• Subjects: Electro coagulation -- Microbial fuel cell -- Paper industries wastewater -- Biodegradability index -- Energy -- COD; Chemical engineering -- Environmental aspects -- Periodicals; Environmental engineering -- Periodicals; Chemical engineering -- Environmental aspects; Environmental engineering; Periodicals; 660.0286
• DOI: 10.1016/j.jece.2016.10.021
• Languages: English
• ISSNs: 2213-2929

Abstract

Highlights: Organic content of the PIW can be converted in to useful energy. EC process improves the BI (biodegradability index) of the treated wastewater. MFC can be the better treatment option for EC treated wastewater for simultaneous treatment and energy production. Sludge and scum generated during EC treatment process contain significant amount of energy. Abstract: The present work deals with the treatment and simultaneous energy generation from paper industries wastewater (PIW) using electro coagulation (EC) and microbial fuel cell (MFC). The PIW is first treated by EC, which improves the biodegradability index (BI) of PIW, which is then used as a raw material for the MFC process. It has been observed that the PIW with initial organic loadings of 2400 mg/L, 750 mg/L, and 5600 mg/L can be treated using EC, MFC and EC followed by MFC respectively, to achieve the effluent under permissible limit. Under the experimental conditions, during the EC process, approximately 1.29 kJ/g and 8.62 kJ/g of energy can be generated from sludge and scum, respectively and approximately 56 mV voltage and 0.02 mA current can be generated from the continuous MFC process.