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논문 상세정보

Mercury Ion Removal Using a Packed-Bed Column with Granular Aminated Chitosan

Abstract

This study deals with the removal of mercury species using a packed-bed column with spherical aminated chitosan material. These adsorbents revealed a high adsorption capacity for mercury species. Experiments with feed solutions of 10 ppm Hg dissolved in distilled water showed an excellent removal with a sharp increase of the filter effluent concentration after a total throughput of 900 bed volumes of feed water. Up to $95\%$ desorption was reached by using 3 bed volumes of 0.01 N EDTA solution. EDTA could be recovered by means of sulfuric acid with about $75\%$ efficiency. Almost the same results were obtained in repeated sorption and desorption experiments at identical conditions. The experiments demonstrated that the sorbents possessed practically no sorption capacity for alkaline earth ions ($Ca^{2+}\;and\;Mg^{2+}$). Their influence on the sorption of mercury was negligible. In experiments with spiked tap water of the Karlsruhe Research Centre and a feed mercury concentration of 0.01 mg/l, the breakthrough of Hg was observed only after a total throughput of about 6,000 bed volumes of feed water.

참고문헌 (15)

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이 논문을 인용한 문헌 (6)

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  2. 2007. "" Journal of microbiology and biotechnology, 17(12): 1983~1990 
  3. 2007. "" Journal of microbiology and biotechnology, 17(12): 2042~2045 
  4. 2007. "" Journal of microbiology and biotechnology, 17(9): 1527~1532 
  5. 2007. "" Journal of microbiology and biotechnology, 17(9): 1546~1549 
  6. 2009. "" Journal of microbiology and biotechnology, 19(6): 629~633 

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