가열 처리한 정수 슬러지를 이용한 하수 처리수 중의 인 제거

Title
가열 처리한 정수 슬러지를 이용한 하수 처리수 중의 인 제거
Other Titles
Removal of Phosphorus in Effluent from Sewage Treatment Plant Using Heated Alum Sludge
Author(s)
서정인윤호석[윤호석]안정임[안정임]
Keywords
heated alum sludge; T-P adsorption capacity; effluent of sewage treatment plant; continuous flow test; Langmuir isotherm
Issue Date
201204
Publisher
한국수처리학회
Citation
한국수처리학회지, v.20, no.2, pp.39 - 50
Abstract
The aims of this study was to investigate the effectiveness of heated alum sludge for removal of phosphorus in effluent from sewage treatment plant. The alum sludge was taken from water purification plant which located in Daegu City. In batch adsorption tests were conducted using a effluent of sewage treatment plant (STP) and potassium dihydrogen phosphate solution(PDP). The maximum adsorption capacity for total phosphorus(T-P) from the Langmuir isotherm plot was 2.96mg T-P/g sludge for STP and 6.26mg T-P/g sludge for PDP. It implied that the competing components in the STP did affect the T-P adsorption in the heated alum sludge. Subsequently, a continuous flow tests were conducted at a 3.5㎥/㎡/day and a cumulative T-P loading of 6.86mg T-P/g sludge for STP. The heated alum sludge removed over 40% T-P for 70 days and it was 82% of the maximum adsorption capacity of T-P obtained in the batch adsorption tests. And during the removal of T-P process, aluminum leaching from heated alum sludge was not detected. These results indicated that heated alum sludge can further be used as a adsorbent material for removal of T-P.
URI
http://hdl.handle.net/YU.REPOSITORY/28425
ISSN
1225-7192
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공과대학 > 도시공학과 > Articles
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