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Zinc Removal from Industrial Wastewater by Electro-Coagulation Process

Authors: Nawras S. Sabeeh --- Ibtehal K. Shakir
Journal: Iraqi Journal of Chemical and Petroleum Engineering المجلة العراقية للهندسة الكيمياوية وهندسة النفط ISSN: 19974884/E26180707 Year: 2007 Volume: 8 Issue: 2 Pages: 43-46
Publisher: Baghdad University جامعة بغداد

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Abstract

Electro coagulation treatment was used for zinc removal from electroplating -wastewater of the State Company for Electrical Industries, This wastewater, here consists zinc ions with maximum concentration in solution of 90 ppm.The parameters that influenced the wastewater treatment are: current density in the range 1—1.4 mA/cm, pH in the range 5-10, temperature in the range 25—45°C and time in the range /0—180 minute.The research is a laboratory experimental type using batch system for electrical process with direct current. The cell comprised of aluminum electrode as anode and stainless steel electrode as cathode. Thirty experiments and one hundred fifty sample lab tests were carried out in this research to study the effect of the mentioned paramet cr5 on the efficiency of the removal process.Experimental work of this research proved a higher efficiency about 95 % removal of zinc from wastewater at 1.4 mA! cm in alkaline media atpH equal and Mmperature 45°C.

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