Performance Evaluation of Electrocoagulation in Removing COD from Car Wash Wastewater

Journal of Human, Environment, and Health Promotion

article

Seyed Morteza Moosavirad¹  Ali Hasanzadeh Sabluei² 

[1] Department of Environment, Institute of Science and High Technology and Environmental Sciences, Graduate University of Advanced Technology;Master of Science in Mining Engineering, Mining and Industry Expert, Bureau of Industry, Mine and Trade of Kerman Province

关键词: Car wash wastewater;    Electrocoagulation;    COD removal;    Response surface method;    Pilot scale;   

DOI  :  10.52547/jhehp.8.4.214

来源: Journal of Human Environment and Health Promotion

【 摘 要 】

Background: Considering the increased demand for cars in different countries during recent years, using car washes for washing vehicles has received a lot of attention. This study aimed to assess removing chemical oxygen demand (COD) from car wash effluent using the electrocoagulation method. Methods: A reactor with dimensions of 40 cm * 50 cm * 50 cm of Plexiglas with a volume of 90 L equipped with an electric current generator and an electrode was used connected to the DC current generator in the form of Al-Al. The response surface method (RSM) was applied to optimize the factors affecting COD removal in the electrocoagulation process. For this purpose, D-optimal was utilized to optimize the experiments. The effects of measurable factors such as electrolysis time (X1), current density (X2), and aeration time (X3) were examined to check COD removal.Results: According to the results, the optimal operating conditions for COD removal during electrolysis (30 min) were as follow: the current density was 18.75 A/m2, and the aeration time of 30 min was 48.51%. Conclusion: In conclusion, electrocoagulation is, to some extent, a reliable and environmentally compatible technique for car wash wastewater treatment.

【 授权许可】

Unknown