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Treatment of bleaching Kraft mill effluents and polychlorinated phenolic compounds with ozonation
Author(s) -
Pérez Montserrat,
Torrades Francesc,
Domènech Xavier,
Peral José
Publication year - 2002
Publication title -
journal of chemical technology and biotechnology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.64
H-Index - 117
eISSN - 1097-4660
pISSN - 0268-2575
DOI - 10.1002/jctb.651
Subject(s) - effluent , kraft paper , chemistry , ozone , paper mill , pulp and paper industry , wastewater , environmental chemistry , pollutant , sewage treatment , degradation (telecommunications) , organic chemistry , environmental engineering , environmental science , engineering , telecommunications , computer science
The effect of the simultaneous use of ozone, UVA or visible light, and small quantities of Fe(II)/Fe(III) ions in solution on the degradation rate of the organic content of a bleaching Kraft mill effluent was investigated. The same treatment was applied to synthetic samples of polychlorinated phenolic compounds, because these are one of the main groups of compounds found in real bleaching Kraft mill effluents. In order to improve the treatment efficiency and to lower the cost of the process several other strategies were investigated. It was found that a previous irradiation of the wastewater or the synthetic sample in the absence of ozone significantly improves the rate of removal of organic pollutants during the subsequent ozonation step. © 2002 Society of Chemical Industry