Volume 23, Issue 1 (Spring 2019)                   JWSS 2019, 23(1): 121-131 | Back to browse issues page


XML Persian Abstract Print


Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

Hasheminejada H, Sayedbarzin M, Jeirany K, Taebi A. The Role of Electrocoagulation and Complementary Flocculation in Reducing the COD of Wastewater Detergents for Irrigation Use. JWSS 2019; 23 (1) :121-131
URL: http://jstnar.iut.ac.ir/article-1-3608-en.html
1. Department of Civil Engineering, Isfahan University of Technology, Isfahan, Iran. , hhasheminejad@cc.iut.ac.ir
Abstract:   (56611 Views)
Detergents are the main organic pollutants in the industrial and domestic wastewater. Electro-chemistry methods are advanced purification methods developed with high efficiency features. The goal of this study was to investigate the possibility of using electrocoagulation and the complementary flocculation process to achieve the highest removal efficiency of the detergent COD. So, with iron electrode, synthetic samples at the concentrations of 500, 750 and 1000 mg/l (with COD of 217, 268 and 370 mg/l, respectively) and with the initial pH levels of 5, 7.3 and 9 were tested. Variable parameters during the electrocoagulation process included the current duration at 3, 5 and 10 minutes, and the current density was at 4, 10, 16 and 22 mA/cm2. The primary results showed that in the optimum conditions, the coagulation process and complementary flocculation could reduce the sample’s COD with an initial concentration of detergent (500 mg/l) from 217 mgO2/l to 81.30 mgO2/l. The electrocoagulation method could reduce the chemical oxygen demand to below the standard limit of environmental discharge (200 mgO2/l) and compensate for the possibility of the irrigation of green spaces due to water shortages.
Full-Text [PDF 420 kb]   (769 Downloads)    
Type of Study: Research | Subject: Ggeneral
Received: 2017/10/31 | Accepted: 2018/03/14 | Published: 2019/06/15

Add your comments about this article : Your username or Email:
CAPTCHA

Rights and permissions
Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

© 2022 CC BY-NC 4.0 | JWSS - Isfahan University of Technology

Designed & Developed by : Yektaweb