Ozonation of a Complex Industrial Effluent: Oxidation of Organic Pollutants and Removal of Toxicity
Authors: Lima, A. A.1; Montalvao, A. F.2; Dezotti, M.1; Sant'Anna, G. L.1
Source: Ozone: Science and Engineering, Volume 28, Number 1, February 2006 , pp. 3-8(6)
Publisher: Taylor and Francis Ltd
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Abstract:
This work deals with the ozonation of a chemical industry wastewater, which contains many complex organic pollutants and presents high chloride content and toxicity. Batch experiments were carried out until ozone absorption reached 0.1 to 3 gO 3 /L. Ozonation promoted low to moderate levels of organic matter removal even when high ozone doses were applied. Organic matter removal tended to decrease when chloride content increased. Toxicity removal increased with the ozone dose up to 0.5 gO 3 /L. High or complete toxicity removal was attained after ozonation of the wastewater samples. Ozonation was also very effective in removing the polycyclic aromatic compounds found in the wastewater.Keywords: Ozonation; Industrial Wastewater; Toxicity; Saline Effluents
Document Type: Research article
DOI: 10.1080/01919510500479007
Affiliations: 1: Programa de Engenharia Química/COPPE/Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil 2: Praxair White Martins, Gases Industrials, Rio de Janeiro, Brazil
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