UV-TiO_2光催化氧化技术维护建筑景观水水质试验研究  

Research on maintainance of water quality for architectural landscape by UV/TiO_2 photocatalytic oxidation technique

作　　者：李星[1] 杨帆[1] 黄柳[1] 赵锂 陈永 傅文华 

机构地区：[1]北京工业大学建筑工程学院,北京100124 [2]中国建筑设计院有限公司,北京100044 [3]中国建设科技集团股份有限公司,北京100120

出　　处：《给水排水》2015年第1期141-145,共5页Water & Wastewater Engineering

基　　金：建筑室外水系维护与节水关键技术研究(2013BAJ02B02)

摘　　要：采用UV／TiO2光催化氧化技术，利用动态试验方法和循环处理方式对模拟建筑景观水中难降解有机污染物的去除进行了研究，并与单-UV技术的处理效果进行了对比，重点考察了Uv、DOC和SUVA的去除效果。试验结果表明，UV／TiO2光催化氧化技术可以有效去除水中的腐殖酸，流量为0．5～1．0L／min时，UV254、DOC和SUVA的去除率随反应时间的增加而增加。UV／TiO2光催化氧化技术去除腐殖酸的效果明显好于单-UV技术，是一种有效的建筑景观水水质维护技朱，The ultraviolet--titanium dioxide （UV/TiO2） photocatalytic oxidation technique was applied to remove persistent organic pollutants in architectural landscape water. The removal per formances of UV/TiO2 technique and single ultraviolet （UV） technique were compared. The re moval efficiencies of UVz54, DOC and SUVA were mainly studied by dynamic and recirculating ex perimental methods. The results showed that humid acid in architectural landscape water could be effectively removed by UV/TiO2 technique. Removal rate of UV254, DOC and SUVA increased with extended reaction time when the flow-rate was between 0. 5 and 1.0 litre per minute. The UV/TiO2 technique indicated better removal effect of humid acid than that of the UV technique. It showed that the UV/TiO2 technique was an effective process to maintain the quality of architectural landscape water.

关 键 词：紫外线 二氧化钛光催化氧化 建筑景观水 

分 类 号：X703.1[环境科学与工程—环境工程]