Journal of Environmental Science International (한국환경과학회지)

The Korean Environmental Sciences Society (한국환경과학회)
권호 표지

Effect of Salt Concentration and Temperature in Synthetic Dyestuff Wastewater Treatment using Plate and Frame Membrane Module

평판형 막모듈을 이용한 합성염료 폐수처리에 있어서 염농도 및 온도의 영향

  • Kim, Sun-Il (Dept. of Chemical Engineering, Chosun University) ;
  • Lee, Bong-Woo (Kunsul Chem. Tech. Reseaech Center, Kunpo City) ;
  • Yun, Young-Jae (Dept. of Chemical Engineering, Chosun University)
  • Published : 1998.04.01
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Abstract

Nanofiltration[NF45] and reverse osmosis membrane(HR98PP) separation treatment of dyestuff wastewater was carried out In order to separate relatively pure water from synthetic dyestuff wastewater, which consists of reactive dye, acid dye, basic dye, direct dye, and disperse dye. The experiments were performed by using the plate and frame membrane module. In the nanofiltration and reverse osmosis membrane separation, When the NaCl concentration was 0.1, 5.0, and 20.091, retention was 63.0, 46.0, 0.9%, respectively. When permeate flux was 125.0, 67.5, and 45.0 L/$m^2$ h, the osmotic pressure increased with Increasing the NaCl concentration. Permeate flux of two membranes Increased as temperature Increased due to segmental movement of polymer of the membrane and the rejection rate of dyestuff was decreased gradually. It was found that the rejection rate was about 95% in the nanofiltratlon, while the reverse osmosis membrane showed a high rejection rate of 99% under all temperature and pressures conditions.

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