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A Study on the Improvement of Water Environment in Retention Pond by Seawater Flocculation and Fenton Oxidation  

Kim, Jin-Han (인천대학교 도시환경공학부)
Jun, Se-Jin (누리환경기술(주))
Lim, Ji-Young (인천대학교)
Song, Yun-Min (인하대학교 환경공학과)
Yoo, Kun-Woo (장안대학 환경보건과)
Jung, Jong-Tai (인천대학교 도시환경공학부)
Park, Jung-Hwan (인하공업전문대학 화공환경과)
Publication Information
Journal of Wetlands Research / v.12, no.1, 2010 , pp. 75-82 More about this Journal
Abstract
This study was performed to figure out what would be effective to improve water environment in a retention pond which was located in Incheon. Chemical coagulation, seawater flocculation and Fenton treatment were carried out to improve water and sediment quality for the retention pond. Experimental results showed that pH of 11 was optimum pH for seawater flocculation and the high removal rates in terms of SS and T-P can be obtained by seawater flocculation. To eliminate the pollutants from the sediments we applied Fenton oxidation process. We compared whether direct oxidizing the sediments would be more effective than oxidizing them after elution. By Fenton oxidation only, the COD removal rate was 0.55 grams per one $H_2O_2$ gram. Whereas the removed COD grams per one $H_2O_2$ gram were 0.69 by Fenton oxidation after elution. It showed that the oxidizing after elution was about 25% more effective than the oxidizing without elution. Both treatments could improve the water quality of a retention pond from a level 6(very bad) to a level 3(normal) of Lake Water Quality Standard.
Keywords
Improvement of water environment in Retention pond; seawater flocculation; Fenton oxidation;
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