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KMID : 0903519940370060480
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Journal of the Korean Society of Agricultural Chemistry and Biotechnology
1994 Volume.37 No. 6 p.480 ~ p.486
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Water Treatment Method for Removal of Trihalomethanes, Pesticides , Heavy Metals and Detergent in Drinking Water
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Abstract
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The present series of investigations have been undertaken to know the effective removal method of some pesticides, heavy metals and detergent when the doses of oxidants and coagulant were changed in the treatment process of drinking water containing organic material. Three pesticides, IBP, diazinon and CNP, were removed by about 68 to 100% by treatment of oxidant, Cl₂. Especially, diazinon was completely removed by treatment of Cl₂ and other oxidants such as ClO₂, KMnO₄ and O₃. However, butachlor removal measured only 20.3 to 26.7% due to treatment of all oxidant used. A detergent, sodium dodecylbenzenesulfonate, was effectively removed by treatment of O₃ but remained stable in the presence of other oxidants. The heavy metals of Cd, Pb, Cu and Zn in water were not affected by treatment of all oxidants used. By changing the concentration of humic matter and the dosage of coagulant, the removal of heavy metals was increased according to the increase of coagulant dosage, and decreased when increasing the concentration of humic matter, whereas the pesticides and detergent were not effectively removed.
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