Domestic Wastewater Treatment by Electrocoagulation with Fe-Fe Electrodes
Journal Title: INTERNATIONAL JOURNAL OF ENGINEERING TRENDS AND TECHNOLOGY - Year 2012, Vol 3, Issue 4
Abstract
The treatment of wastewater has become an absolute necessity. An innovative cheap and effective method of purifying and cleaning wastewater before discharging into any other water systems is needed. A wide range of wastewater treatment techniques are known which include biological processes and physicochemical processes. A host of promising techniques based on electrochemical technology are being developed and existing techniques are improved to reduce less chemical additions. The present study was conducted to investigate the applicability of the electrocoagulation technique for the treatment of domestic wastewater at JNTU Hyderabad. Electrocoagulation is a surface reaction. Electrocoagulation is the process of passing electric current through a liquid, using anode and cathode. In this experiment iron electrodes are used and the sample is made up to run at different intervals of time i.e., 5, 10,15 and 20 minutes and different amperes of current is passed in the sample (0.12 A, 0.25A, 0.36A). The combination effects of current, pH and treatment time to the efficiency of the electrocoagulation process for the removal of Chemical Oxygen Demand, Total Dissolved Solids, pH, Color, chlorides etc, from the domestic wastewater showed that only current(C) and treatment time (t) have correlation with each other. It observed that the batch which is operated at 0.25A for 20 minutes has maximum removal efficiency of Chemical Oxygen Demand, Total Dissolved Solids, pH, Color, chlorides etc.
Authors and Affiliations
C. Sarala
Keywords
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