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약품교반시험을 이용한 응집 공정에서 알루미늄 이온의 물질수지 분석
신기호 ( Ki Ho Shin ),이준명 ( Jun Myeong Lee ),이광호 ( Kwang Ho Lee ) 충북대학교 건설기술연구소 2011 建設技術論文集 Vol.30 No.1
This paper analyzes the mass balance of Aluminum ion using jar test by changing the does of coagulant. The results are as follows; The result of Jar test after dosing the coagulant shows that the recovery rate of total aluminum ion in filtrate and sediment are 93.4-106.8% in case of PAHCS and 9.2-103.2% in case of PAC when compared to dosage. By increasing the dose of coagulant from 0.5ml to 2.5ml, the ratio of residual aluminum ion of filtrate is 23.8-1.3% in case of PAHCS and 39.1-0.3% in case of PAC after the Jar test. As a result, the ratio of residual aluminum ion decreases and its ratio in sediment increases by increasing the dose of coagulant. Both for PAHCS and PAC, the residual aluminum ion of filtrate is the lowest when dosing 2.3ml and pH is stabilized at 6.9-7.0.