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Treatment of dairy industry wastewater by combined aerated electrocoagulation and phytoremediation process

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Title Treatment of dairy industry wastewater by combined aerated electrocoagulation and phytoremediation process
 
Creator Akansha, J.
Nidheesh, P. V.
Gopinath, Ashitha
Anupama, K.V.
Suresh Kumar, M.
 
Subject Industrial Wastewater Treatment & Disposal
Water Pollution
Environmental Engineering
Waste Water Management
Waste Water Treatment
 
Description As dairy industries has been emerged as one of the most rapidly developing industry in both small as
well as large scale, the volume of effluent generated is also very high. In the present study, aerated
electrocoagulation combined with phytoremediation treatment was conducted in dairy industry
wastewater. Electrocoagulation was performed with aluminium and iron electrodes and effect of various
operating parameters such as electrode combination, pH, and voltage were tested. Electrocoagulation
was found effective at neutral pH and its efficiency increased with increase in applied voltage. The
maximum COD removal efficiency of 86.4% was obtained in case of AleFe electrode combination with
aeration at 120 min reaction time, initial pH 7, voltage 5 V. Significant growth of Canna indica was
observed in electrocoagulation treated wastewater compared to raw dairy wastewater. COD removal of
97% was achieved when combined electrocoagulation and phytoremediation process was used. Thus, it
proves to be a proficient method for the treatment of dairy industry wastewater. In addition to the above,
bacterial toxicity tests were performed to investigate the toxic nature of wastewater and the results
showed that both treated and untreated wastewater favoured bacterial growth.
 
Publisher Elsevier
 
Date 2020
 
Type Article
PeerReviewed
 
Format application/pdf
 
Identifier http://neeri.csircentral.net/1271/1/2020%20Akansha%20Chemosphere.pdf
Akansha, J. and Nidheesh, P. V. and Gopinath, Ashitha and Anupama, K.V. and Suresh Kumar, M. (2020) Treatment of dairy industry wastewater by combined aerated electrocoagulation and phytoremediation process. Chemosphere, 253. p. 126652. ISSN 00456535
 
Relation http://dx.doi.org/10.1016/j.chemosphere.2020.126652
http://neeri.csircentral.net/1271/