Dechlorination and detoxification of bleach plant effluent by Phanerochaete chrysosporium

Dechlorination, detoxification, and decolorization of the first alkaline extraction stage (Ep) effluent from a pulp mill bleach plant were studied during fungal treatment. The original Ep effluent and Ep effluent fractionated by ultrafiltration were treated with the white-rot fungus Phanerochaete ch...

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Bibliographic Details
Published inJournal of biotechnology Vol. 24; no. 3; pp. 267 - 275
Main Authors Fukui, Hiroshi, Presnell, Timothy L., Joyce, Thomas W., Chang, Hou-min
Format Journal Article
LanguageEnglish
Published Lausanne Elsevier B.V 1992
Amsterdam Elsevier
New York, NY
Subjects
AOX
Biological and medical sciences
Biological treatment of sewage sludges and wastes
Biotechnology
Color removal
Environment and pollution
Fundamental and applied biological sciences. Psychology
Industrial applications and implications. Economical aspects
MICROTOX
Phanerochaete chrysosporium
AOX
Phanerochaete chrysosporium
MICROTOX
Color removal
Performance evaluation
Discoloration
Cytotoxicity test
Basidiomycetes
Detoxication
Biological purification
Fungi
Chlorine compounds
Dechlorination
Ultrafiltration
Bleaching
Liquid effluent
Waste water purification
Thallophyta
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Summary:Dechlorination, detoxification, and decolorization of the first alkaline extraction stage (Ep) effluent from a pulp mill bleach plant were studied during fungal treatment. The original Ep effluent and Ep effluent fractionated by ultrafiltration were treated with the white-rot fungus Phanerochaete chrysosporium under agitated conditions. The fungus was grown from spores for 4 d. Decolorization was observed 2 d after the addition of fresh media containing reduced levels of nitrogen and carbon. After 2–3 d reaction time detoxification, dechlorination and decolorization were evaluated. Color removal was most effective in the MW > 10 000 (HMW) fraction. Toxicity as measured by the MICROTOX bioassay, increased in both the HMW and MW 1000–10000 (MMW) fraction after fungal treatment. Molecular weight decreased during fungal treatment, which may have caused the increase in toxicity. The amount of chlorinated organic compounds, as measured by adsorbable organic halide analysis (AOX), decreased in each fraction.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0168-1656
1873-4863
DOI:10.1016/0168-1656(92)90036-9