会议专题

Photocatalytic Degradation of Bisphenol A in Horizontal Circulating Bed Photocatalytic Reactor (HCBPR)

Photocatalytic degradation of bisphenol A (BPA) was investigated in a self-designed horizontal circulating bed photocatalytic reactor (HCBPR). Polyurethane foam cubes were used as carriers and pretreated by microwave-assisted liquid phase deposition to immobilize TiO2. The effects of initial BPA concentration, initial pH, carrier dosage and temperature on BPA photodegradation were investigated in order to obtain the optimum conditions for BPAs photodegradation. The results revealed that both increasing pH from 3.4 to 12.3 and decreasing the initial BPA concentration from 50ppm to 10ppm enhanced the degradation efficiency greatly. The optimum carrier dosage was 1% (Vcarriers/Vreactor). Besides, the effect of temperature on photodegradation was not remarkable when changing from 21.2℃ to 30.5℃. Total organic carbon (TOC) was used to evaluate the mineralization of BPA during the photodegradation process. Under the optimum conditions, 95% removal of TOC and nearly 100% removal of BPA demonstrated that the high efficiency of BPA photodegradation in HCBPR.

horizontal circulating bed photocatalytic reactor TiO2 polyurethane foam bisphenol A influence factor

REN Dianjun WANG Rongchang XIA Siqing

College of Environmental Science and Engineering; State Key Laboratory of Pollution Control and Resources Reuse; Key Laboratory of Yangtze Water Environment, Ministry of Education, Tongji University, Shanghai 200092, China

国际会议

2007环境科学与技术国际会议(The 2007 International Symposium on Environmental Science and Technology)

北京

英文

2007-11-13(万方平台首次上网日期,不代表论文的发表时间)