초기농도와 pH 조건의 변화에 따른 제강슬래그의 카드뮴 제거능 평가

Title
초기농도와 pH 조건의 변화에 따른 제강슬래그의 카드뮴 제거능 평가
Alternative Title
Estimation of cadmium removal capacity of furnace slag in the change of initial concentration and pH
Author(s)
이광헌; 김은협; 박준범; 오명학
KIOST Author(s)
Oh, Myoung Hak(오명학)
Publication Year
2010-03-25
Abstract
This study was focused on the reactivity of furnace slag against cadmium to design the vertical drain method with reactive column for improving contaminated sea shore sediment. The removal capacity of furnace slag was analyzed using pseudo-second-order model. And the effective parameters of removal test were initial concentration and initial pH. According to equilibrium removal amount and reactive constant calculated by pseudo-second-order model, the removal capacity was analyzed. Equilibrium removal amount of furnace slag was linearly increased as increasing intial cadmium concentration. Because the pH was around 11, the removal mechanism of furnace slag could be both sorption and precipitation. Therefore the removal amount was increased due to initial concentration. pH was increased to around 11 in the case of \\\"No treat\\\", but the pH were 3.8 in the case of \\\"HAc added\\\" and 0.7 in the case of \\\"HCl added\\\". The removal amount was different 4.8, 1.19 and 0.27 mg/g. This results show the pH was major factor to remove cadmium using furnace slag.
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/29052
Bibliographic Citation
한국지반공학회 본 학술발표회, pp.1006 - 1011, 2010
Publisher
한국지반공학회
Type
Conference
Language
Korean
Publisher
한국지반공학회
Related Researcher
Research Interests

Marine geotechnics,Geoenvironmental Engineering,offshore foundation,해양지반공학,지반환경공학,해양구조물 기초

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