Effect of temperature on the ozonation of textile waste effluent |
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| Authors: | RK Ramasamy NA Rahman WC San |
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| Affiliation: | Department of Chemistry, University of Malaya, 50603 Kuala Lumpur, Malaysia;Department of Chemistry, University of Malaya, 50603 Kuala Lumpur, Malaysia;Department of Physics, University of Malaya, 50603 Kuala Lumpur, Malaysia |
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| Abstract: | Ozonation in batch experiments were conducted at elevated temperatures to study the influence of temperature on the efficiency of ozonation. The effect of temperature on ozonation was determined by measuring the extent of colour removal and the reduction of chemical oxygen demand (COD) and total organic carbon (TOC) of a textile waste effluent. It was found that increasing the temperature causes a decrease in the levels of colour, COD and TOC. Complete mineralisation of the dye molecule, however, did not occur to an appreciable extent. The efficiency of colour removal was 71.3%, whilst the COD and TOC reduction efficiency was 20.3 and 19.3%, respectively, at the highest temperature studied (50 °C). The removal efficiency of COD, however, did not improve significantly when the temperature was increased from 40 to 50 °C. |
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