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Iranian Journal of Environmental Health Science & Engineering
Year: 2009  |  Volume: 6  |  Issue: 4  |  Page No.: 301 - 306

Efficiency of Domestic Reverse Osmosis in Removal of Trihalomethanes from Drinking Water

S. Mazloomi, R. Nabizadh, S. Nasseri, K. Naddafi, S. Nazmara and A.H. Mahvi    

Abstract: The reaction of disinfectants with natural organic materials (NOM) existing in water lead to the formation of Disinfection By-Products. Potentially hazardous and carcinogenic characteristics of THMs recognized. Thus removal of THMs or THMs precursor is necessary for human health the aim of this study was to research of efficiency of domestic reverse osmosis (RO) in removal of trihalomethanes (THMs) from drinking water. In this study was used pilot scale of RO system with Polyamide membrane as Spiral-Wound, Tape wrapping module. Feed solution was made by using of pure chloroform. The samples containing chloroform were analyzed using a gas chromatograph, which equipped with a flame ionization detector. By increasing the flow, the removal rate of chloroform decrease and with declining removal of EC, the removal of chloroform was declined too. In this research, at worst condition, the efficiency of the pilot scale reverse osmosis reached to 80 % removal of chloroform.

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