Toxicity abatement and biodegradability enhancement of pulp mill bleaching effluent by advanced chemical oxidation

Toxicity abatement and biodegradability enhancement of pulp mill bleaching effluent by advanced chemical oxidation

This paper describes the use of photocatalysis to degrade two bleaching effluents from P. radiata (D sub(o)E sub(op)) and E. grandis (CEop) wood processing. Organic matter oxidation was followed by general parameters (TOC, color, AOX), toxicity and biodegradability. Reactions with suspended and supp...

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Veröffentlicht in:Water science and technology 1999, Vol.40 (11-12), p.337-342
Hauptverfasser: YEBER, C, RODRIGUEZ, J, BAEZA, J, FREER, J, ZAROR, C, DURAN, N, MANSILLA, H. D
Format: Artikel
Sprache:eng
Schlagworte:
Acute toxicity
Applied sciences
Biodegradability
Biodegradation
Bleaching
Catalysis
Catalysts
Colour
Effluent treatment
Effluents
Exact sciences and technology
Industrial wastewaters
Organic matter
Oxidation
Photocatalysis
Photochemical reactions
Pinus radiata
Pollution
Pulp
Titanium dioxide
Titanium oxides
Total organic carbon
Toxicity
Wastewater treatment
Wastewaters
Water treatment and pollution
Wood
Zinc oxide
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Zusammenfassung:This paper describes the use of photocatalysis to degrade two bleaching effluents from P. radiata (D sub(o)E sub(op)) and E. grandis (CEop) wood processing. Organic matter oxidation was followed by general parameters (TOC, color, AOX), toxicity and biodegradability. Reactions with suspended and supported catalysts, TiO sub(2) and ZnO, were carried out for comparison. For both effluents, photocatalytic treatment led to an improvement in biodegradability and a reduction in acute toxicity.
ISSN:0273-1223
1996-9732
DOI:10.1016/S0273-1223(99)00736-2