Removal of hazardous pharmaceutical from water by photocatalytic treatment

Walter de Gruyter GmbH - Tập 8 Số 6 - Trang 1288-1297 - 2010
J. Choina1, Heiko Duwensee2, Gerd‐Uwe Flechsig2, H. Kosslick3,1, Antoni W. Morawski4, Tuan A. Vu5, Axel Schulz3,1
1University of Rostock
2Institute of Chemistry, Department of Analytical, Technical and Environmental Chemistry, University of Rostock, Rostock, Germany
3Leibniz Institute of Catalysis e.V. (LIKAT)
4Department of Water Technology and Environment Engineering, Institute of Chemical and Environment Engineering, West Pomerania University of Technology, 70-322, Szczecin, Poland
5Institute of Chemistry, Vietnamese Academy of Science and Technology, Cau Giay, Hanoi, Vietnam

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Abstract The photocatalytic abatement of hazardous pharmaceuticals has been investigated at very low concentration in the ppb range as found in wastewater and in environmental pollutants. Photocatalytic degradation of tetracycline as a model compound with titania catalysts has been studied using solarium UV-A and black light with differentially applied electric power, tetracycline and catalyst concentration. Abatement of up to 90% has been achieved after 1 hour. Adsorption of tetracycline and photochemical degradation contribute significantly to the abatement of tetracycline resulting in an immediate reduction during the initial period of treatment. Contribution of adsorption is high at very low concentration (500 ppb). Photocatalytic treatment with titania is even highly efficient in the abatement of very small concentrations of tetracycline in drinking water.

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Walter de Gruyter GmbH

Tập 8 Số 6

1288-1297

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