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http://dx.doi.org/10.4491/KSEE.2013.35.10.737

Removal of Sediments below Breeding Ground Using Supersonics and Micro-Air Flotation  

Kim, Seog-Ku (Environmental Engineering Research Disision, Korea Institute of Construction Technology)
Ahn, Jae-Hwan (Environmental Engineering Research Disision, Korea Institute of Construction Technology)
Yun, Sang-Leen (Environmental Engineering Research Disision, Korea Institute of Construction Technology)
Kang, Sung-Won (Environmental Engineering Research Disision, Korea Institute of Construction Technology)
Lee, Jungwoo (Environmental Engineering Research Disision, Korea Institute of Construction Technology)
Lee, Jea-Keun (Department of Environmental Engineering, Pukyong National University)
Lim, Jun-Heok (Department of Chemical Engineering, Pukyong National University)
Kim, Dong-Soo (Department of Environmental Engineering, Pukyong National University)
Lee, Tae-Yoon (Department of Environmental Engineering, Pukyong National University)
Publication Information
Journal of Korean Society of Environmental Engineers / v.35, no.10, 2013 , pp. 737-742 More about this Journal
Abstract
The purpose of this study was to remove sediments obtained from breeding ground using supersonics and micro-air flotation method. Sediments from Tongyong breeding grounds showed no contaminations of heavy metals but had great amount of organics. Thus, efficient removal of sediments was required to preserve water quality near breeding ground. Supersonics treatment for sediments was determined to be essential because higher removal efficiency of sediments was obtained when supersonics treatment was used. In addition, application of coagulants increased removal efficiency because its usage increased particle size of sediments, which enabled easy trapping of sediments particle into micro-air bubbles. Removal efficiency of sediments slightly decreased from 95.8% (1 g/L) to 83.9% (8 g/L) at the tests for different amount of sediments, but most of tiny particles were removed from water where sand size particles were left in the bottom of reactors.
Keywords
Breeding Ground; Sediments; Micro-Air Flotation; Supersonics; Coagulants;
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