Studies on the chlorination of chlorolignins and humic acid

High relative molecular mass material (chlorolignins) in spent liquors from the chlorination and alkali extraction stages of the bleaching of softwood kraft pulp yields chlorinated phenolic and Ames test mutagenic compounds when treated with chlorine under conditions similar to those used in the dis...

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Veröffentlicht in:	Environmental science & technology 1985-05, Vol.19 (5), p.427-431
Hauptverfasser:	Kringstad, Knut P, De Sousa, Filipe, Stroemberg, Lars M
Format:	Artikel
Sprache:	eng
Schlagworte:	ACIDE HUMIQUE ACIDO HUMICO Applied sciences BLANCHISSEMENT BLEACHING CHLORE CHLORINE CLORO CONTAMINACION DEL AGUA DECOLORACION Drinking water and swimming-pool water. Desalination Exact sciences and technology FIBRE PULP HUMIC ACIDS PATE DE FIBRES Pollution POLLUTION DE L'EAU PULPA FIBROSA WATER POLLUTION Water treatment and pollution
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Beschreibung
Zusammenfassung:	High relative molecular mass material (chlorolignins) in spent liquors from the chlorination and alkali extraction stages of the bleaching of softwood kraft pulp yields chlorinated phenolic and Ames test mutagenic compounds when treated with chlorine under conditions similar to those used in the disinfection of drinking water. Per unit weight of total organic carbon (TOC) the quantities are comparable to those formed in the chlorination of naturally occurring aquatic humic acid.
ISSN:	0013-936X 1520-5851
DOI:	10.1021/es00135a007