Abstract
Electrocoagulation is an electrochemical process used to treat wastewater and water contaminated with heavy metals. This method destabilizes contaminants that are suspended, emulsified or dissolved in wastewater by applying electrical current through electrodes and then removing them by filtration. In this work we present a turbidity, dissolved oxygen and pH measurement system for the influent and effluent of the gray water treatment process by the electrocoagulation method. The treatment process is carried out via batch and the measurement system allows to know the initial and final levels of the variables through a human machine interface (HMI) designed in LabVIEW. Twelve experimental tests were performed varying the treatment time and applied voltage in the electrocoagulation process to analyze the rate of change of the measured variables and its behavior regarding time and voltage. The applied direct current voltages were 10 V, 15 V and 20 V during 30 min, 60 min, 90 min and 120 min.
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