Abstract

Wastewaters generated from vegetable oil industries contain a high concentration of organic pollutants that are detrimental to the aquatic ecosystem. Electrochemical processes are gaining importance in the treatment of inorganic and resistant organic pollutants in wastewaters. In this study, electrocoagulation (EC) was applied to remove organic pollutants and oil and grease from canola oil wastewater using aluminum (Al) and iron (Fe) electrodes. The application of EC in the wastewater achieved more than 80% removal of organic carbon and nearly 100% removal of suspended solids (SS). The effectiveness of EC is influenced mainly by current density, pH, electrolyte (NaCl), electrode contact time and electrode type. It was observed that Al electrode combination yielded better removal at a lesser time compared to that of Fe electrodes. However, varying current densities had its significance in terms of coagulation time only. Increase in current density achieved decrease in coagulation time. Both Al and Fe could remove between 52-59% of oil and grease from canola oil wastewater

Details

Title
Organic pollutant removal from edible oil process wastewater using electrocoagulation
Author
Sharma, S 1 ; Can, O T 2 ; Hammed, M 1 ; Nawarathna, D 3 ; Simsek, H 1 

 Department of Agricultural and Biosystems Engineering, North Dakota State University, Fargo, ND, USA 
 Department of Environmental Engineering, Bursa Technical University, Bursa, Turkey 
 Department of Electrical and Computer Engineering, North Dakota State University, Fargo, ND, USA 
Publication year
2018
Publication date
Mar 2018
Publisher
IOP Publishing
ISSN
17551307
e-ISSN
17551315
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2559576474
Copyright
© 2018. This work is published under http://creativecommons.org/licenses/by/3.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.