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KMID : 0669519940040000041
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Journal of Health Science - Yonsei University
1994 Volume.4 No. 0 p.41 ~ p.46
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Membrane Fouling Pheonomena for Concentration of Industrial Wastewaters
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Abstract
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Membrane separation processes have been considered as an important unit operation for the treatment and recycle of industrial wastewater treatment. However, the application of this technology to industry is limited by the fouling phenmena that significantly reduce membrane performance in most cases. Membrane fouling is a result of complicated interactions between membrane material and components of wastewater. This study investigated effects of inorganic salts and organic pollutants on fouling of commercial membranes; BW-30, UOP-CA and NF-40. In concentration process of synthetic steel plant wastewater, NF-40 showed the highest fouling tendency and the lowest fouling tendency was observed by BW-30 membrane. UOP-CA membrane appeared to be most tolerant to organic fouling for wastewater generated from the dyeing of arclylic textile.
The experimental data of flux decline for dye wastewater were reasonably well fitted by a fouling model; J/J_(0)=at^(-b).
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