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Electrocoagulation technique in enhancing COD and suspended solids removal to improve wastewater quality

Othman, Fadil and Sohaili, Johan and M. F., Ni’am and Z., Fauzia (2007) Electrocoagulation technique in enhancing COD and suspended solids removal to improve wastewater quality. In: International Conference on Water Management and Technology Applications in Developing Countries, 14-16 May 2007, Kuala Lumpur, Malaysia.

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Official URL: https://www.researchgate.net/publication/5893613_E...

Abstract

This paper presents a preliminary study for the removal of COD and suspended solids in wastewater treatment by combining magnetic field and electrocoagulation (EC) technology. The experiments were carried out using batch apparatus and setup in the static method. Batch experiments with two monopolar iron (Fe) plate anodes and cathodes were employed as electrodes. Wastewater samples were prepared from milk powder with an initial COD of 1,140 mgL(-1) and suspended solids of 1,400 mgL(-1) and acidic conditions were employed (pH approximately 3). DC current was varied from 0.5-0.8 A and operating times were between 30 and 50 min. The results show that the effluent wastewater was very clear (turbidity approximately 9 NTU) and its quality exceeded the direct discharge standard. The suspended solids and COD removal efficiencies were as high as 30.6 and 75.5%, respectively. In addition, the experimental results also show that the electrocoagulation could neutralise the pH of wastewater.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:electrocoagulation, enhancing COD, wastewater quality
Subjects:T Technology > T Technology (General)
T Technology > TA Engineering (General). Civil engineering (General)
Divisions:Civil Engineering
ID Code:22002
Deposited By:INVALID USER
Deposited On:23 Feb 2012 07:47
Last Modified:06 Sep 2017 06:46

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