Photocatalytic membrane reactors pressure

Chapter 6 (Mozia, Morawski, Molinari, Palmisano and Loddo) reports the state-of-the-art of photocatalytic membrane reactors. These systems combine some advantages of both photocatalytic reaction and membrane separation. To this end, the authors describe the types of membranes used, and some aspects related to membrane operations, such as fouling, are discussed. The different methods of preparation of photocatalytic membranes as well as the most common configurations of photocatalytic membrane reactors are also shown. The distinction between photocatalytic membrane reactors utilizing pressure-driven membrane techniques (microfiltration. 

Meng Y, Huang X, Yang Q, Qian Y, Kubota N and Fukunaga S (2005), Treatment of polluted river water with a photocatalytic slurry reactor using low-pressure mercury lamps coupled with a membrane . Desalination, 181, 121-133. 

Chin S S, LimT M, Chiang K and Fane A G (2007b), Factors affecting the f>erfor-mance of a low-pressure submerged membrane photocatalytic reactor , Chem ng 7,130,53-63. 

A low pressure UV lamp (11W, Amax = 253.7 mn) was positioned vertically inside the quartz glass cylinder in the middle of the photocatalytic zone. Air was supplied from a porous titanium plate directly below the membrane module. The purpose of the aeration was to provide dissolved oxygen for photoreaction, to fluidize the IIO2 particles and to create sufficient turbulence along the membrane surface. The reaction temperature was controlled by using cooling water. Permeate was withdrawn from the system with the help of a suction pump. A water level sensor was used to maintain a constant level of solution in the reactor. Additionally, the exterior wall of the reactor was covered with a reflecting aluminum foil to improve the efficiency of UV utilization. 

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