UV消毒用于楼宇水箱水质控制研究  

Study on building roof tank water quality control using UV technology

作　　者：张琳[1] 刘文君[1] 梁佳慧 吴伟健[2] 范晓军[2] 

机构地区：[1]清华大学环境科学与工程系,北京100084 [2]澳门自来水股份有限公司

出　　处：《给水排水》2006年第5期64-68,共5页Water & Wastewater Engineering

摘　　要：结合实验室和现场的试验研究,探讨了UV消毒用于控制入户端——楼宇水箱水质的前景和问题。实验室研究结果表明,剂量为10mJ/cm2的UV照射,对HPC和E.coli能达到3log(99.9%)左右的灭活率。实际应用中UV消毒适用于微生物学指标较差、余氯很低的水箱,同时也出现了UV光强明显下降、紫外线照射促进余氯衰减等问题。Through both bench-scale and field experiments, potential and problems of roof tank water quality control by ultraviolet disinfection were discussed. It was showed in lab experiments that 10 mJ/cm^2 UV irradiation caused about 3 log（99. 9%） inactivation of HPC and E. coli. Practical application of UV disinfection is suitable to building roof tank water quality control with bad microorganism index and little chlorine residue.In the mean time, there arise problems such as UV lamp intensity decrease sharply, and decay of chlorine residual was promoted by UV irradiation.

关 键 词：UV 消毒 光强 余氯衰减 楼宇水箱水质 

分 类 号：TU821.5[建筑科学] TQ085.4[化学工程]