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The DEPSE project ran from November 1991 to January 1994, the aim being to design, construct and test a photocatalytic reactor with the capability of detoxifying effluent using photocatalysts of optimal photoactivity. The achievements of the depse project are reported in this publication. A photocatalytic reactor was designed, constructed and tested. Photocatalysts were prepared which were largely compatible with the fluidodynamic requirements of the reactor, and retained an activity for the degradation of aromatic pollutants in water. Models were developed providing very satisfactory descriptions of the fluidodynamic behaviour, the optical behaviour and the kinetic behaviour of the reactor. Methods of preparing photocatalysts which greatly reduce the processing times were developed. Methods of manufacturing supported photocatalysts were identified. Insufficient time prevented further investigation. The reactor was shown to be effective in eliminating approximately 99% of pentachlorophenol from a saturated solution within a period of three hours, but tests have shown that with a more effective loading of photocatalyst in the reactor that time can be reduced by at least a factor of three or conversely to reduce the level of pollution to values approaching the limits of detection of the substances in a similar length of time.

Additional information

Authors: BICKLEY R I, University of Bradford (GB)
Bibliographic Reference: EUR 16642 EN (1996) 107pp., FS, free of charge
Availability: Available from the European Commission, Mrs Durand, DG XII-D, 200 rue de la Loi, B-1049 Bruxelles (BE)
ISBN: ISBN 92-827-5415-4
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