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전기응집 및 전기탈수을 이용한 슬러지 탈수 성능평가 분석
신희수(Heesoo Shin),여창신(Changsin Yeo),변상현(Sanghyun Byun),이재근(Jaekeun Lee) 대한기계학회 2003 대한기계학회 춘추학술대회 Vol.2003 No.4
This study is to develop the pretreatment for the excess and digested sludge by electro-coagulation and dewatering. Electrocoagulation is applied to excess and digested sludge before transferring to the piston type press for dewatering. Piston type press as a laboratory scale plant was used to estimate the dewaterability.<br/> MMD of excess sludge was increased from initial diameter of particles(34.16㎛) to the 87%(64.01㎛) after electrocoagulation. AI electrode is more effective than Fe electrode for the dewaterability of excess sludge. Electrodewatering after electrocoagulation as pretreatment makes the water content of sludge cake 50~60 wt%.