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http://dx.doi.org/10.12925/jkocs.2017.34.3.436

A Study on the Reduction of COD, Total Phosphorus and Nitrogen in Wastewater by Electrolysis and HClO Treatment  

Kim, Tae Kyeong (Division of Civil, Environmental and Chemical Engineering, Changwon National Univ.)
Song, Ju Yeong (Division of Civil, Environmental and Chemical Engineering, Changwon National Univ.)
Publication Information
Journal of the Korean Applied Science and Technology / v.34, no.3, 2017 , pp. 436-442 More about this Journal
Abstract
This study was conducted to develop a wastewater treatment system to remove organic matter, nitrate nitrogen, and phosphate ion in synthetic wastewater. COD was removed almost 100% by the oxidation reaction of HClO and nitrate nitrogen was reduced to ammonia by electrolysis treatment, but ammonia was reoxidized into nitrate nitrogen by HClO treatment. Ammonia was removed almost 100% by heating evaporation and no ammonia was reoxidized into nitrate by HClO treatment. Phosphate ion could be removed by precipitation treatment by forming metal complex according to pH. Through electrolysis treatment and HClO treatment, removal efficiencies of COD 99.5%, nitrogen 97.3% and phosphorus 91.5% were obtained.
Keywords
COD; Nitrate; Phosphate; Electrolysis; HClO;
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Times Cited By KSCI : 8  (Citation Analysis)
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