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KMID : 0604519950210020112
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Journal of the Society of Cosmetic Scientists of Korea
1995 Volume.21 No. 2 p.112 ~ p.128
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Treatment of cosmetic wastewater and sewage by activated sludge process
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Lee Jong-Chul
Han Chang-Kyu
Zhoh Choon-Koo
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Abstract
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This study was undertaken to see the effect of the addition of residential sewage to cosmetic plant wastewater on the aeration time for COD stabilization of the mixture in a bioreactor. Various range of mixing-ratio samples were tested to find the optimal mixing ratio. The combined result of measured COD and the minimum aeration time was desirable when the sewage portion was 80%. It was found that the addition of residential sewage to cosmetic plant wastewater itself reduced the measured COD of the mixture without any further treatment. And during the aeration COD was reduced with increasing the portion of the sewage. These results show that the aeration time for COD stabilization can be reduced by pro-mixing of residential sewage and the cosmetic plant wastewater.
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