정수 슬러지를 이용한 저수지 퇴적층에서 용출되는 인의 흡착

Title
정수 슬러지를 이용한 저수지 퇴적층에서 용출되는 인의 흡착
Other Titles
Adsorption of Phosphorus Release from Surface Sediment of Reservoir Using Alum Sludge
Author(s)
서정인
Keywords
Alum sludge; Total phosphorus; Surface sediment of reservoir; Anaerobic condition.
Issue Date
201210
Publisher
한국수처리학회
Citation
한국수처리학회지, v.20, no.5, pp.3 - 12
Abstract
The efficiency of sediment capping with an alum sludge to prevent phosphorus release from surface sediment of reservoir under anaerobic condition was investigated through a incubation experiments. Incubation experiments proved that the T-P from the sediment into the overlying water under anaerobic condition was significantly reduced by the alum sludge. And, during the adsorption of T-P, the reduction in T-P concentration occurred with increase in concentration of T-N, TOC, sulfate and chloride. The extraction amount of T-N, TOC, sulfate and chloride from the alum sludge for 30days were 0.009(T-N), 0.10(TOC), 1.38(sulfate) and 0.08 g/kg sludge(chloride), respectively. However, there was no significant release of aluminium during the adsorption of T-P. And T-P removal efficiency increased from 60 to 100% when alum sludge dosage was increased from 12 to 48g alum sludge/kg sediment. At dosage 48 g alum sludge/kg sediment, the uptake of T-P was 0.014 g/kg sludge. It was amount in 2% of the maximum adsorption capacity for phosphorus in alum sludge. It is suggested that the alum sludge can further be used as a capping material of T-P adsorption in reservoir.
URI
http://hdl.handle.net/YU.REPOSITORY/27035
ISSN
1225-7192
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공과대학 > 도시공학과 > Articles
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