:: Volume 4, Issue 3 (Summer, 2017) ::
Environ. health eng. manag. 2017, 4(3): 157-162 Back to browse issues page
Efficiency of electrical coagulation process using aluminum electrodes for municipal wastewater treatment: a case study at Karaj wastewater treatment plant
Samad Gholami Yengejeh , Hossein Jafari Mansoorian , Gharib Majidi , Ahmad Reza Yari , Narges Khanjani
Corresponding Author: Assistant Professor of Research Center for Environmental Pollutants, Qom University of Medical Sciences, Qom, Iran , yari1ahr@gmail.com
Abstract:   (1548 Views)
Background: The reuse of treated municipal wastewater is an important source of water for different ,purposes. This study evaluated the efficiency of the electrocoagulation process in removing turbidity,a total suspended solids (TSS), chemical oxygen demand (COD), nitrate, and phosphate from wastewater at the treatment facility in Karaj, Iran.
Methods: This experimental study was performed at a pilot scale and in a batch system. A 4-liter tank made from safety glass with 4 plate electrodes made from aluminum was unipolarly connected to a direct current power supply with a parallel arrangement. Wastewater samples were taken from the
influent at the Karaj wastewater treatment facility. Rates of turbidity, TSS, COD, nitrate, and phosphate removal under different conditions were determined.
Results: The highest efficiency of COD, TSS, nitrate, turbidity, and phosphate elimination was achieved at a voltage of 30 volts and a reaction time of 30 minutes. The rates were 88.43%, 87.39%, 100%, 80.52%, and 82.69%, respectively.
Conclusion: Based on the results of this study, electrocoagulation is an appropriate method for use in removing nitrate, phosphate, COD, turbidity, and TSS from wastewater.
Keywords: Electrical coagulation process, Wastewater treatment
eprint link: http://eprints.kmu.ac.ir/id/eprint/26576
Full-Text [PDF 496 kb]   (802 Downloads)    
Type of Study: Research | Subject: Special
Received: 2017/09/2 | Accepted: 2017/09/2 | Published: 2017/09/2

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Volume 4, Issue 3 (Summer, 2017) Back to browse issues page