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Disinfection by-product formation from the chlorination and chloramination of amines

Bond, T, Kamal, NM, Bonnisseau, T and Templeton, MR (2014) Disinfection by-product formation from the chlorination and chloramination of amines Journal of Hazardous Materials, 278. pp. 288-296.

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This study investigated the relative effect of chlorination and chloramination on DBP formation from seven model amine precursor compounds, representative of those commonly found in natural waters, at pH 6, 7 and 8. The quantified DBPs included chloroform, dichloroacetonitrile (DCAN), trichloroacetonitrile (TCAN) and chloropicrin (trichloronitromethane). The aggregate formation (i.e. the mass sum of the formation from the individual precursors) of chloroform, DCAN and TCAN from all precursors was reduced by respectively 75–87%, 66–90% and 89–93% when considering pre-formed monochloramine compared to chlorine. The formation of both haloacetonitriles decreased with increasing pH following chlorination, but formation after chloramination was relatively insensitive to pH change. The highest formation of chloropicrin was from chloramination at pH 7. These results indicate that, while chloramination is effective at reducing the concentrations of trihalomethanes and haloacetonitriles in drinking water compared with chlorination, the opposite is true for the halonitromethanes.

Item Type: Article
Subjects : Civil Engineering
Divisions : Surrey research (other units)
Authors :
Kamal, NM
Bonnisseau, T
Templeton, MR
Date : 15 August 2014
DOI : 10.1016/j.jhazmat.2014.05.100
Copyright Disclaimer : © 2014 Elsevier B.V. All rights reserved.
Uncontrolled Keywords : Chloropicrin, Dichloroacetonitrile, Trichloroacetonitrile, Trihalomethane, Amino acid
Depositing User : Symplectic Elements
Date Deposited : 17 May 2017 13:57
Last Modified : 25 Jan 2020 00:34

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