HPLC evaluation of resin acid degradation with ozone treatment of pulp mill effluent |
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| Authors: | S Chow A Obermajer G Van Shaik |
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| Institution: | (1) Canfor Research and Development Centre, Canadian Forest Products Ltd., 101-1750 West 75th Avenue, Vancouver, B.C., V6P 6G2, Canada, CA |
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| Abstract: | Summary Pulp mill effluent in the pH range of 7 to 8.5 was found most suitable for ozone treatment. Both resin acids and phenolic
compounds were degraded in similar efficiency. Among the various resin acids, dehydroabietic acid (DHA) was found to be the
most resistant to ozone degradation. The determination of DHA in the treated effluent can therefore reflect the degree of
completeness of the effluent treatment. A simple and fast HPLC method reported previously for the determination of DHA was
found to serve well for this purpose. Results are demonstrated by treatments of various pulp mill effluents.
Received 11 March 1997 |
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