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Formation of organochlorine compounds in kraft pulp bleaching processes

Chemosphere (Oxford), 1996-01, Vol.33 (12), p.2431-2440 [Peer Reviewed Journal]

1996 ;1997 INIST-CNRS ;ISSN: 0045-6535 ;EISSN: 1879-1298 ;DOI: 10.1016/S0045-6535(96)00337-2 ;CODEN: CMSHAF

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Title:
Formation of organochlorine compounds in kraft pulp bleaching processes
Author: Juuti, S. ; Vartiainen, T. ; Ruuskanen, J.
Subjects: AOX ; Applied sciences ; Atmospheric pollution ; bleaching ; bleaching effluent ; chlorinated acetic acids ; chlorine dioxide ; chloroform ; dichloroacetic acid ; Exact sciences and technology ; kraft pulping ; organochlorine compounds ; Other pollution sources in industry ; Pollution ; Pollution sources. Measurement results ; pulp and paper mill effluents ; trichloroacetic acid ; volatile compounds ; volatile organochlorine compounds ; waste water ; wood pulp
Is Part Of: Chemosphere (Oxford), 1996-01, Vol.33 (12), p.2431-2440
Description: The most abundant volatile organochlorine compounds (VOCCs), trichloroacetic and dichloroacetic acids and AOX, were determined in bleaching effluent and waste water from three kraft pulp mills during ClO 2 bleaching. 0.6–7.7 g of VOCCs per ton bleached pulp were formed, the most abundant being chloroform and dichloroacetic acid methyl ester. Most of the VOCCs were removed during treatment, and it was estimated that 2–30 t of VOCCs would be removed annually from activated sludge treatment plants in Finnish kraft pulp mills using elemental chlorine free bleaching, most likely by volatilization. Dichloroacetic acid was formed in considerably higher amounts than trichloroacetic acid, and both compounds were removed effectively during treatment. The formation of all organochlorine compounds decreased considerably when non-chlorinated bleaching was employed.
Publisher: Oxford: Elsevier Ltd
Language: English
Identifier: ISSN: 0045-6535
EISSN: 1879-1298
DOI: 10.1016/S0045-6535(96)00337-2
CODEN: CMSHAF
Source: Alma/SFX Local Collection

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Formation of organochlorine compounds in kraft pulp bleaching processes

1996 ;1997 INIST-CNRS ;ISSN: 0045-6535 ;EISSN: 1879-1298 ;DOI: 10.1016/S0045-6535(96)00337-2 ;CODEN: CMSHAF

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