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    STUDIA AMBIENTUM - Issue no. 1-2 / 2008  
         
  Article:   TRIHALOMETHANES EVOLUTION IN DISTRIBUTION SYSTEM OF CLUJ-NAPOCA.

Authors:  DUMITRU RISTOIU, MELINDA-HAYDEE KOVACS. 		 
       
         
  Abstract:  Water suppliers that practice chlorine disinfections face conflicting objectives in providing adequate microbial protection while minimizing the formation of harmful chlorinated organic byproducts. Chlorine is a strong oxidant that reacts with the natural organic matter (NOM) present in all natural waters. Although chlorine is invaluable in the protection of public health the disinfection by products released after chlorination process present long-term health risk to water consumers. Such of disinfection byproducts are trihalomethanes (THMs). Trihalomethanes are a group of volatile organic compounds that can form when the chlorine used to disinfect drinking water reacts with naturally occurring organic matter (e.g., decaying leaves and vegetation). The preliminary results presented in this paper shown that the THMs levels from Gilau Water treatment Plants and Cluj-Napoca distribution system. The results have higher values in the summer period relative to other seasons.

Keywords: Volatile disinfection by-products, Trihalomethanes, Chlorine, Water Treatment Plant 		 
         
     
         
         
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