Reduction of natural organic matter and disinfection by-product precursors by coagulation and adsorption

E. E. Chang, Pen Chi Chiang, Su Huei Chao, Chung Huei Liang

研究成果: 雜誌貢獻文章同行評審

6 引文 斯高帕斯(Scopus)

摘要

Source water from King-Men Reservoir water in Taiwan was treated by alum and polyaluminum chloride coagulation, and the corresponding natural organic matter was fractionated by ultrafiltration membranes for determining its molecular weight (MW) distribution to provide the baseline information for further investigation. Due to the characteristics of the source-water nature, a lower alum dosage could reduce the total organic carbon (TOC) concentration by a great amount (25%), while the difference in TOC removal efficiency was found to be insignificant at a higher dosage (60-90 mg/L) and even operating in a lower pH range. The results show that the larger MW coagulant polyaluminum chloride, having higher-charge neutralization and bridging capacities, exhibits better performance than the lower MW alum. In addition, the granular-activated carbon-adsorption process provides a relatively lower THMFP in the treated water at the same level of trihalomethanes and to lower the coagulant doses demand as well.
原文英語
頁(從 - 到)57-64
頁數8
期刊Practice Periodical of Hazardous, Toxic, and Radioactive Waste Management
8
發行號1
DOIs
出版狀態已發佈 - 一月 2004

ASJC Scopus subject areas

  • 岩土工程與工程地質
  • 化學工程 (全部)
  • 環境工程
  • 水科學與技術
  • 廢物管理和處置
  • 環境科學 (全部)

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