CHAPTER 12: Total Trihalomethane Disinfection By-Product Concentrations Levels Observed in Drinking Water for Some Locations in Baghdad City and the Effect of Ultrafiltration in Minimizing Them

Ultrafiltration membrane technology was used successfully in minimizing the TOC (Total Organic Carbon) level from Jaderia-Baghdad from river raw water and achieving an average removal value of 76.3% while in the conventional drinking water treatment plant the average removal value was 58.5%. For trihalomethanes (THMs) the maximum observed value was 35 µg/l after the ultrafiltration unit which was better than the maximum value measured in the Jaderia conventional drinking water treatment plant of 58 µg/l. Both of these results are less than the acceptance levels (80 µg/l according to the USEPA). Also, high values 44, 42 and 43 µg/l were measured in Al Sadeer City, Al Karaada and Al Jaderia respectively, mostly because these areas were using a different source of water supply that needs more attention from Iraqi authorities in the mayoralty of Baghdad.