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황산바륜의 공침현상을 이용한 중금속 이온의 제거

Removal of heavy metal by coprecipitation with barium sulfate

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Abstract

The objective of this study is to investigate the removal of heavy metal by using the coprecipitationof barium sulfate. Several parameters governing the efficiency of the coprecipitation method were evaluatedby the pH of sample solution, amount of coprecipitant, and addition of sulfide for the removal of As(V), Cd(II),g/ml each). The coprecipitation was about 80% - 95%only for lead at low pH but under 10% for other ions. The amount of removal was about 95% - 100% forCd, Hg, Pb, Cu in the all pH range by the addition of sulfide with barium sulfate but As(V) and Cr(III, VI)ions were not affected by the same conditions.

참고문헌 (20)

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