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The Effects Of Ventilation On Trihalomethanes Removal By Spray Aeration, Alicia Qiu Cheung
The Effects Of Ventilation On Trihalomethanes Removal By Spray Aeration, Alicia Qiu Cheung
UNLV Theses, Dissertations, Professional Papers, and Capstones
Chlorination has been a vital and common step employed as a primary and/or secondary disinfectant to avoid outbreaks of waterborne diseases in drinking water supplies. Besides the desired effect of inactivating pathogens, chlorine also reacts with natural organic matter and precursors in raw water to form various carcinogenic disinfection by-products (DBPs), such as trihalomethanes (THMs), four of which are (represented as total trihalomethanes or TTHM) chloroform (CHCl3), dichlorobromomethane (CHCl2Br), chlorodibromomethane (CHClBr2), and bromoform (CHBr3). Spray aeration is an effective, economical, and suitable post-treatment method commonly employed in distribution systems (e.g., storage tanks) to remove these volatile organic compounds from the …