하수처리장의 총인 처리과정에서 발생하는 슬러지로부터 응집제의 회수

Title
하수처리장의 총인 처리과정에서 발생하는 슬러지로부터 응집제의 회수
Other Titles
Recovery of Coagulant from Wasted Sludge Produced from the Total Phosphorus Removal Process of Domestic Wastewater Treatment Plants
Author(s)
서정인윤호석[윤호석]
Keywords
recovered aluminum; sulfuric acid; total phosphorus; aluminum/phosphorus mole ratio
Issue Date
201306
Publisher
한국수처리학회
Citation
한국수처리학회지, v.21, no.3, pp.39 - 46
Abstract
To reuse the aluminum contained P-sludge, which was generated from the total phosphorus removal process of domestic wastewater treatment plant (PRDWT), the aluminum was extracted using sulfuric acid. And its removal rate for total phosphorus from influent of PRDWT was investigated. As expected, the main metalic element presented in P-sludge was aluminum, which was about 190 g/kg-sludge(dry wt.). Also maximum aluminum recovery was using 3.6N sulfuric acid as extracting solution about 99% when the P-sludge:sulfuric acid solution ratio was 1:2. The recovered aluminum solution contained aluminum and total phosphorus at higher than 15,000mg/L and 3,000mg/L, respectively. The recovered aluminum solution removed over 80% total phosphorus when the aluminum/phosphorus mole ratio was over 8. The results presented in this study provide a basis to develop prospects for beneficial reuse of P-sludge.
URI
http://hdl.handle.net/YU.REPOSITORY/29535
ISSN
1225-7192
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공과대학 > 도시공학과 > Articles
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