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Environmental Engineering Research 2001;6(3): 117-122.
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| COMPARISON OF HEAVY METAL IONS (Pb2+ , Cd2+ , Mn2+, Cu2+) REMOVAL BY SEVERAL MATERIALS |
| Hee Kyung An1, Hong Koon No2, and Dong Seog Kim1† |
1Department of Environmental Science, Catholic University of Daegu, Gyeongbuk 712-702, Korea
2Department of Food Science and Technology, Catholic University of Daegu, Gyeongbuk 712-702, Korea |
Corresponding Author:
Dong Seog Kim ,Tel: +82-53-850-3250, Fax: +82-53-850-3250, Email: kimds@cuth.cataegu.ac.kr
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Received: December 19, 2000; Accepted: June 19, 2001. |
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| ABSTRACT |
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The order of removed Pb2+ amounts by several materials was found as crab shell -* cation exchange resin > Aureobasidium pullulans > zeolite > Saccharomyces cerevisiue > powdered activated carbon > granular activated carbon. By the high Pb2+ removal capacity and rate, crab shell can be applied to biosorption process for heavy metal removal. In all three heavy metal ions (Pb2+ , Cd2+ , Mn2+), the removed heavy metal ions by crab shell was higher than those by chitin and chitosan. The role of chitin is not so great in the removal of heavy metal ions by crab shell. Especially, in the case of Cu2+ , the removed Cu2+ by chitin and chitosan were changed as the types of heavy metal salts (sulfate, chloride, nitrate) and all the removed Cu2+ by chitosan were higher than those b> chitin. |
| Keywords:
chitin | chitosan | crab shell | Cd2+ | Cu2+ | Mn2+ | Pb2+ |
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