Organic pollutant removal from edible oil process wastewater using electrocoagulation

4th International Conference on Sustainable Agriculture and Environment

农业科学;生态环境科学

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, United States^1

Department of Environmental Engineering, Bursa Technical University, Bursa, Turkey^2

Department of Electrical and Computer Engineering, North Dakota State University, Fargo

ND, United States^3

关键词: Coagulation time;    Electro coagulations;    Electrochemical process;    Electrocoagulation;    Electrode contacts;    Electrode type;    Suspended solids;    Vegetable oil industry;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/142/1/012079/pdf
DOI  :  10.1088/1755-1315/142/1/012079

来源: IOP

【 摘 要 】

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.