지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
이용수
초록· 키워드
오류제보하기
Six-valent chromium (Cr6＋) is a highly toxic pollutant, supplied in a variety of industrial activities such as leather tanning, cooling tower blowdown, and plating. Herein, we investigated the removal of Cr6＋ from aqueous phase using low-cost adsorbents. Steel slag,montmorillonite, illite, kaolinite, red mud, and acid treated red mud with 0.5, 1.0, and 2.0 M HCl were used as adsorbent for the removal of Cr6＋ and the results showed that acid treated red mud with 2.0 M HCl (ATRM-2.0 M) had higher adsorption capacity of Cr6＋ than other adsorbents used. Accordingly, Cr6＋ removal by ATRM-2.0 M were studied in a batch system with respect to changes in initial concentration of Cr6＋, initial solution pH, adsorbent dose, adsorbent mixture, and seawater. Equilibrium sorption data were described well by Freundlich isotherm model. The influence of initial solution pH on Cr6＋ adsorption was insignificant. The use of the ATRM-2.0 M alone was more effective than mixing it with other adsorbents including red mud, zeolite, oyster shell, lime stone, and montmorillonite for the removal of Cr6＋. The Cr6＋ removal of the ATRM-2.0 M was slightly less in seawater than deionized water,resulting from the presence of anions in seawater competing for the favorable adsorption site on the surface of ATRM-2.0 M. It was concluded that the ATRM-2.0 M can be used as a potential adsorbent for the removal of Cr6＋ from the aqueous solutions.
목차
등록된 정보가 없습니다.
참고문헌 (31)
참고문헌 신청
AL-Othman, Z. A. / 2012 / Hexavalent chromium removal from aqueous medium by activated carbon prepared from peanut shell : Adsorption kinetics, equilibrium and thermodynamic studies / Chemical Engineering Journal 184:238~247
Anderson, R. A. / 1989 / Essentiality of chromium in humans / The Science of the Total Environment 86(1/2):75~81
Bae, S. W. / 1999 / Characteristics of Cement Based Solidification Process for Municipal Solid Wastes Incineration Plant Fly Ash / Journal of Korean Solid Wastes Engineering Society 16(1):67~72
Canali, S. / 1997 / Chromium environmental issues / FrancoAngeli
Carson, B. L. / 1986 / Toxicology and Biological Monitoring of Metals in Humans / Lewis Publishers Inc.
Anderson, R. A. / 1989 / Essentiality of chromium in humans / The Science of the Total Environment 86(1/2):75~81
Bae, S. W. / 1999 / Characteristics of Cement Based Solidification Process for Municipal Solid Wastes Incineration Plant Fly Ash / Journal of Korean Solid Wastes Engineering Society 16(1):67~72
Canali, S. / 1997 / Chromium environmental issues / FrancoAngeli
Carson, B. L. / 1986 / Toxicology and Biological Monitoring of Metals in Humans / Lewis Publishers Inc.
이 논문의 저자 정보
최근 본 자료
댓글(0)
0