| 학회 |
한국화학공학회 |
| 학술대회 |
2009년 가을 (10/22 ~ 10/23, 일산 KINTEX) |
| 권호 |
15권 2호, p.1935 |
| 발표분야 |
환경 |
| 제목 |
Immobilization of copper in aqueous solution by un-calcined sodium exchanged and acid modified montmorillonite |
| 초록 |
The removal of Cu2+ from aqueous solution by batch adsorption technique using un-calcined sodium exchanged (Na-MMT) and acid modified montmorillonite (A-MMT) was investigated. The sensitivity of the Cu2+ removal process using Na-MMT and A-MMT was highly influenced by pH, initial Cu2+ concentration, reaction time and temperature. The rate kinetics for the adsorption of Cu2+ onto Na-MMT and A-MMT followed the pseudo-second-order kinetic model for the range of concentrations studied. Isotherm models were applied. The Redlich-Peterson and Dubinin-Radushkevich model fit best the equilibrium data of Na-MMT and A-MMT respectively. The thermodynamic parameters, such as Go, Ho, and So were also determined and evaluated. Na-MMT has a better adsorption potential than A-MMT. The potentials of both Na-MMT and A-MMT can be explored as effective adsorbents for the removal of toxic heavy metals in industrial effluents. |
| 저자 |
김동수, Christianah Olakitan Ijagbemi
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| 소속 |
이화여자대 |
| 키워드 |
Adsorption; Copper; Na-montmorillonite; A-montmorillonite; Isotherm; Kinetics
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| E-Mail |
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| 원문파일 |
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