Characterization of dissolved organic matter and disinfection characteristics of source water from the Pearl River

Z. Y. Zhao*, J. D. Gu, H. B. Li

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Source water samples were collected from Guangzhou segment of Pearl River and filtered through Amicon® YC-05, YM-1, YM-3, YM-10, YM-30, YM-100 and ZM-500 membranes sequentially after pre-treatment. The apparent molecular weights of the 8 fractions were calibrated using high-performance size exclusion chromatograph (HPSEC) and they ranged from 0.36 to 182.6 kDa. These fractionated isolates and the raw water were disinfected by chlorine or chlorine dioxide to determine their disinfection characteristics. Results showed that apparent molecular weight of the main dissolved organic matter (DOM) in the RO isolate of water sample was less than 360 Da and this part of the DOM was mainly from anthropogenic activities and contamination of wastewater. RO fraction was the controlling factor for the raw water disinfection process according to the THMs concentrations detected. Disinfection by chlorine dioxide produced less THMs that by chlorine.

Original languageEnglish
Title of host publicationSustainable and Safe Water Supplies
EditorsHerbert Fang, Joseph Lee
Pages205-212
Number of pages8
Edition2
DOIs
StatePublished - 2007
Externally publishedYes

Publication series

NameWater Science and Technology: Water Supply
Number2
Volume7
ISSN (Print)1606-9749

Keywords

  • Chlorine
  • Chlorine dioxide
  • Disinfection by-products
  • Dissolved organic matter
  • Drinking water
  • Trihalomethane

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