平板式太阳能光催化净水器对苯酚的降解  

DEGRADATION STUDY OF PHENOL BY FLAT PLATE SOLAR PHOTOCATALYTIC WATER PURIFIER

作　　者：任学昌[1] 于学华[1] 张国珍[1] 武褔平 任晓亮[1] 

机构地区：[1]兰州交通大学环境与市政工程学院,寒旱地区水资源综合利用教育部工程研究中心,兰州730070

出　　处：《太阳能学报》2012年第4期677-682,共6页Acta Energiae Solaris Sinica

基　　金：长江学者和创新团队发展计划(IRT0966);兰州交通大学第四批“青蓝”人才基金(QL-06-04-A);国家水体污染控制与治理科技重大专项(2008ZX07425-005);甘肃省教育厅研究生导师科研项目(20874)

摘　　要：以解决西部干旱地区集雨水深度净化为目的,研制了一款平板式太阳能光催化集雨水净水器;以低温水热法在土工布上负载光催化剂,以苯酚为模拟污染物,分别在室内不同条件下及在太阳光下进行光催化氧化实验。结果表明,以自来水(pH=7.2)配制的浓度为2.5mg/L的苯酚、在流量为5.0L/h、光强为1.5mW/cm2的条件下,出水口苯酚的降解率可达52.35%;而在夏季太阳光的照射下,苯酚的降解率可达82.56%;对会宁农村集雨水中挥发酚降解作用明显,出水口挥发酚指标完全达标。A flat plate solar photocatalytic water purifier was developed to purify harvesting rain water in drought rural areas of West China. TiO2 photocatalyst was deposited on the course cloth by low-temperature hydrothermal method; Flat plate solar photocatalytic water purifier was used for photocatalytic degradation of simulated phenol wastewater under xenon lamp and sunlight. The results indicated that the degradation rate of phenol was 52.35% under the certain conditions, phenol concentration of 2.5mg/L, pH = 7.2, flow rate of 5.0L/h, and the light intensity of 365nm wavelength of 1.5mW/cm2. When the purifier was under summer sunlight, the degradation rate of phenol was 82.56% ;The volatile phenol in harvesting rain water in Huining was degradated significantly and could fully meet the quality standard of volatile phenol.

关 键 词：光催化净水器 二氧化钛 苯酚 太阳能 

分 类 号：X172[环境科学与工程—环境科学]