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Sand capping for controlling phosphorus release from lake sediments

Authors
Kim, G.Jeong, W.Choi, S.Khim, J.
Issue Date
4월-2007
Publisher
TAYLOR & FRANCIS LTD
Keywords
capping; lake; phosphorus release; sediments
Citation
ENVIRONMENTAL TECHNOLOGY, v.28, no.4, pp.381 - 389
Indexed
SCIE
SCOPUS
Journal Title
ENVIRONMENTAL TECHNOLOGY
Volume
28
Number
4
Start Page
381
End Page
389
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/125797
DOI
10.1080/09593332808618801
ISSN
0959-3330
Abstract
In this research, the use of the sand capping technique for controlling phosphorus release from lake sediment was evaluated experimentally. Multiple acrylic columns were prepared to measure the dissolved oxygen, oxidation reduction potential, total phosphorus, and phosphate concentrations of the overlying water on the capping layer with thicknesses of 0, 40, and 80 mm. Sand capping effectively slowed down the reactions that depleted the dissolved oxygen, which as a result, controlled the total phosphorus release from the sediment. Oxidation reduction potential of overlying water was estimated by measuring dissolved oxygen in situ or vice versa by an empirical model proposed in this research. Sediment disturbance should be considered during field construction of the cap system. The experimental results showed that phosphorus existed in a more stable form with capping than without capping.
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Khim, Jee hyeong
공과대학 (건축사회환경공학부)
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