Abstract
To treat the waste seawater from shrimp farms, TiO2 powder photocatalysis and ceramic membrane filtration technologies were integrated to form a photocatalytic membrane reactor (PMR). PMR performance was investigated and real waste water sample was treated under the optimum operation conditions. Results indicated that TiO2 powder with mean particle size of 0.27 μm could be separated successfully with α-Al2O3 membrane with pore size of 0.05 μm, the permeation flux was 432 Lhr-1m-2 under pressure of 0.05 MPa. Wastewater was treated with three different catalysts involving 2 g of TiO2 powder, 2 g of TiO2 powder combined with 5 ml of H2O2 (30%), and 2 g of TiO2 powder combined with 5 ml of Fenton agent for per liter of wastewater, the corresponding CODCr removal rates were 15.67 %, 25.19 % and 40.67 % separately.
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