KMID : 0615219960210010279
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Journal of Kwangju Health 1996 Volume.21 No. 1 p.279 ~ p.289
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The Study of Heavy Metal Treatment through Chitosan Matrix
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·ùÀϱ¤/Ryu IK
ÀÌÄ¡¿µ/Lee CY
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Abstract
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Chitosan (¥â-D-glucosaminan) is chemically prepared from chitin (N-acetyl-¥â -glucosaminan), which is on natural resources.
We now report on the suistability of the chitosan matrix for use as vehicles for the treatment heavy metal in waste water.
Mercury, cadmium, and chromium were used as model metals in this study.
The permeation of mercury, cadmium and chromium on chitosan membrane was determined in a glass diffusion cell with two compartment of equal volume, and was investigated influence versus pH value, respectively.
The permeability of mercury, cadmium, and chromium were 3,479¡¿10^(-7)§²/s, 1,369¡¿10^(-7)§²/s, and 1,399¡¿10^(-7)§²/s, respectively.
With mercury maxima is observed from pH 7, whereas cadmium and chromium show maxima from pH 8, respectively.
The effect of pH of the solution on the swelling degree of membrane is shown swelling in the acidic solution, but not in the alkaline solution. Therefore, if a state of alkali in sink solution both sides could be kept for longer times, that is, the diffuse transport of metal ion from chitosan membrane should be prevented.
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