Effects of polydiallyldimethyl ammonium chloride coagulant on formation of chlorinated by products in drinking water

E. E. Chang; P. C. Chiang; S. H. Chao; C. H. Liang

doi:10.1016/S0045-6535(99)00036-3

Effects of polydiallyldimethyl ammonium chloride coagulant on formation of chlorinated by products in drinking water

E. E. Chang, P. C. Chiang, S. H. Chao, C. H. Liang

Taipei Medical University

Research output: Contribution to journal › Article › peer-review

35 Citations (Scopus)

Abstract

The objectives of this research work was to evaluate the reduction of THM precursors by cationic p-DADMAC and determine the correlations between the chlorine demand and trihalomethane formation in the presence of electrolyte solutions and ambient light. The chlorine demand was found to be significantly reduced provided that the H₂SO₄ electrolyte was fed to the sample solutions. The amount of CHCl₃ formation was also decreased when the Na₂SO₄ electrolyte was introduced in spite of the levels of light intensity. The p-DADMAC can not only effectively remove the turbidity but also reduce the formation of CHCl₃. The optimum dosage of p-DADMAC for reducing the turbidity, TOC and CHCl₃ in the humic acid and source water samples was determined and depended upon the nature of organics.

Original language	English
Pages (from-to)	1333-1346
Number of pages	14
Journal	Chemosphere
Volume	39
Issue number	8
DOIs	https://doi.org/10.1016/S0045-6535(99)00036-3
Publication status	Published - Oct 1999

Keywords

Cationic polymer
Chlorine demand
Polydiallyldimethyl ammoniun chloride (p-DADMAC)
Polyelectrolyte
TOC
Trihalomethane (THM)

ASJC Scopus subject areas

Environmental Chemistry
Environmental Science(all)

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10.1016/S0045-6535(99)00036-3

Cite this

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title = "Effects of polydiallyldimethyl ammonium chloride coagulant on formation of chlorinated by products in drinking water",

abstract = "The objectives of this research work was to evaluate the reduction of THM precursors by cationic p-DADMAC and determine the correlations between the chlorine demand and trihalomethane formation in the presence of electrolyte solutions and ambient light. The chlorine demand was found to be significantly reduced provided that the H2SO4 electrolyte was fed to the sample solutions. The amount of CHCl3 formation was also decreased when the Na2SO4 electrolyte was introduced in spite of the levels of light intensity. The p-DADMAC can not only effectively remove the turbidity but also reduce the formation of CHCl3. The optimum dosage of p-DADMAC for reducing the turbidity, TOC and CHCl3 in the humic acid and source water samples was determined and depended upon the nature of organics.",

keywords = "Cationic polymer, Chlorine demand, Polydiallyldimethyl ammoniun chloride (p-DADMAC), Polyelectrolyte, TOC, Trihalomethane (THM)",

author = "Chang, {E. E.} and Chiang, {P. C.} and Chao, {S. H.} and Liang, {C. H.}",

year = "1999",

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T1 - Effects of polydiallyldimethyl ammonium chloride coagulant on formation of chlorinated by products in drinking water

AU - Chang, E. E.

AU - Chiang, P. C.

AU - Chao, S. H.

AU - Liang, C. H.

PY - 1999/10

Y1 - 1999/10

N2 - The objectives of this research work was to evaluate the reduction of THM precursors by cationic p-DADMAC and determine the correlations between the chlorine demand and trihalomethane formation in the presence of electrolyte solutions and ambient light. The chlorine demand was found to be significantly reduced provided that the H2SO4 electrolyte was fed to the sample solutions. The amount of CHCl3 formation was also decreased when the Na2SO4 electrolyte was introduced in spite of the levels of light intensity. The p-DADMAC can not only effectively remove the turbidity but also reduce the formation of CHCl3. The optimum dosage of p-DADMAC for reducing the turbidity, TOC and CHCl3 in the humic acid and source water samples was determined and depended upon the nature of organics.

AB - The objectives of this research work was to evaluate the reduction of THM precursors by cationic p-DADMAC and determine the correlations between the chlorine demand and trihalomethane formation in the presence of electrolyte solutions and ambient light. The chlorine demand was found to be significantly reduced provided that the H2SO4 electrolyte was fed to the sample solutions. The amount of CHCl3 formation was also decreased when the Na2SO4 electrolyte was introduced in spite of the levels of light intensity. The p-DADMAC can not only effectively remove the turbidity but also reduce the formation of CHCl3. The optimum dosage of p-DADMAC for reducing the turbidity, TOC and CHCl3 in the humic acid and source water samples was determined and depended upon the nature of organics.

KW - Cationic polymer

KW - Chlorine demand

KW - Polydiallyldimethyl ammoniun chloride (p-DADMAC)

KW - Polyelectrolyte

KW - TOC

KW - Trihalomethane (THM)

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SN - 0045-6535

VL - 39

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JO - Chemosphere

JF - Chemosphere

IS - 8

ER -

Effects of polydiallyldimethyl ammonium chloride coagulant on formation of chlorinated by products in drinking water

Abstract

Keywords

ASJC Scopus subject areas

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