E3S Web Conf.
Volume 93, 20192018 International Conference on Green Energy and Environment Engineering (CGEEE 2018)
|Number of page(s)||6|
|Section||Environmental Engineering and Sustainable Development|
|Published online||17 April 2019|
Application of a Continuous Bipolar Mode Electrocoagulation (CBME) system for polishing distillery wastewater
Department of Civil Engineering, Indian Institute of Technology, Kandi, Hyderabad, Telangana, India - 502285
2 Department of Chemistry, Indian Institute of Technology, Kandi, Hyderabad, Telangana, India - 502285
3 Rahyals Envergy India Pvt Ltd, Kukatpally, Hyderabad, Telangana, India - 500085
A continuous bipolar mode electrocoagulation (CBME) unit was used in this study for polishing a biologically treated distillery wastewater at laboratory scale. This study focuses on optimizing the process for removal of Total Organic Carbon (TOC) from an anaerobically-treated distillery wastewater. Response surface methodology (RSM) was used for optimizing the process. The study was conducted by varying three operating parameters: Initial pH (2-10), reaction time (0.5-15 min), and current density (13-40 A/sqm). High R-square values, above 0.9, were obtained with ANOVA. Optimal point was observed to be at pH-6.04, Reaction time-11.63 min, current density-39.2 A/sqm. Experimental values of TOC removal at optimal point were found to be 73% against maximum predicted value of 79%. Color removal efficiency was observed to be 85% at the optimal points. It can be concluded that CBME system can be a suitable alternative for removal of recalcitrant carbon and color post-biological treatment in distillery wastewaters.
© The Authors, published by EDP Sciences, 2019
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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