정수슬러지를 이용한 댐 수몰 예정지내의 논토양으로부터 용출되는 인의 흡착

Title
정수슬러지를 이용한 댐 수몰 예정지내의 논토양으로부터 용출되는 인의 흡착
Other Titles
Adsorption of Phosphorus Release from Paddy Soil Submerged by Dam Construction Using Water Works Sludge
Author(s)
서정인
Keywords
Water work sludge; Phosphorus; Paddy soil; Oxic and anoxic condition; Dam construction
Issue Date
201302
Publisher
한국수처리학회
Citation
한국수처리학회지, v.21, no.1, pp.31 - 37
Abstract
To evaluate the application of a water works sludge to prevent phosphorus release from paddy soil submerged by dam construction under oxic and anoxic conditions, laboratory incubation experiments using BOD bottle were conducted for 45 days. Under anoxic condition, the release rate was enhanced 2 times for phosphorus over oxic condition. However, water works sludge addition to the paddy soil led to reduced release of phosphorus in the anoxic condition. Also, during the adsorption process, decrease of total phosphorus concentration in overlying water, accompanied with an increase in pH values and concentration of sulfate, chloride and TOC by ligand exchange. Therefore, there was no excessive release of anion such as sulfate and chloride during the adsorption of phosphorus. The results indicated that water works sludge can further be used as adsorbent media for phosphorus removal in the paddy soil submerged by dam construction.
URI
http://hdl.handle.net/YU.REPOSITORY/26320
ISSN
1225-7192
Appears in Collections:
공과대학 > 도시공학과 > Articles
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