Issue 53, 2016, Issue in Progress

Improvement in treatment of soak liquor by combining electro-oxidation and biodegradation

Abstract

Soak liquor generated from the leather processing industry contains high organic load, making it a challenge to treat it efficiently. A combined process involving electro-oxidation and biodegradation by halophilic bacteria was applied to treat wastewater effectively for discharge. Electrolysis was performed prior to biological treatment in an electrochemical reactor at a current density of 0.012 A cm−2 for a period of 30 minutes. Titanium Substrate Insoluble Anode (TSIA) was used as an anode and titanium mesh was used as a cathode. Biological degradation was carried out with two isolated microbial strains at pH 6. The combination of electro-oxidation and biodegradation was recorded as a good technique in terms of COD (Chemical Oxygen Demand), BOD (Biological Oxygen Demand) and TKN (Total Kjeldahl Nitrogen) removal efficiency with values of 95%, 85%, and 88% respectively. The present study claims that the integrated process gives better performance for the reduction of COD when compared to previous studies.

Graphical abstract: Improvement in treatment of soak liquor by combining electro-oxidation and biodegradation

Supplementary files

Article information

Article type
Paper
Submitted
30 Dec 2015
Accepted
20 Apr 2016
First published
28 Apr 2016

RSC Adv., 2016,6, 47220-47228

Author version available

Improvement in treatment of soak liquor by combining electro-oxidation and biodegradation

S. Rajeswari, S. Vidhya, S. Sundarapandiyan, P. Saravanan, S. Ponmariappan and K. Vidya, RSC Adv., 2016, 6, 47220 DOI: 10.1039/C5RA28076A

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements