Large scale studies in solar catalytic wastewater treatment

被引:86
作者
Dillert, R
Cassano, AE
Goslich, R
Bahnemann, D
机构
[1] Inst Solarenergieforsch GmbH Hameln Emmerthal, D-30165 Hannover, Germany
[2] Univ Nacl Litoral, INTEC, RA-3000 Santa Fe, Argentina
[3] Consejo Nacl Invest Cient & Tecn, RA-3000 Santa Fe, Argentina
[4] Ecotransfair, D-33106 Braunschweig, Germany
关键词
photocatalysis; photoreactors; titanium dioxide; UV radiation;
D O I
10.1016/S0920-5861(99)00188-1
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
The practical applicability of the double-skin sheet reactor (DSSR) for solar catalytic wastewater treatment has been checked at laboratory scale, in Hannover, and at the outdoor test-field of the Plataforma Solar de Almeria (PSA), in Spain, using dichloro acetic acid (DCA) as the standard test pollutant. This type of photoreactor has also been successfully used for the treatment of biologically pretreated industrial wastewater on laboratory and pilot plant scale. To analyze the experimental results, a first-order rate law in concentration and radiation density flux (assumed constant for each run) has been derived: R-V = k(3)(A(R)/V-R)(q) over bar(UV)(c), where k(3) is a lump kinetic parameter, A(R) is the illuminated reactor area, V-R is the volume of the photoreactor, (q) over bar(UV) is the time averaged radiation density flux of UV energy, and c is the concentration of the pollutant. It has been observed that the integrated form of this rate law fits fairly well the experimental data obtained with a model compound and solar energy, and that an expression derived from this rate can be used for an approximate scaling-up of a solar catalytic wastewater treatment plant. (C) 1999 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:267 / 282
页数:16
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