改性沸石滤料处理屋面雨水的中试试验研究  

Pilot study on roof rainwater treatment with modified zeolite

作　　者：马春麟 张晶 李军[1] 张亚超 李文静 Ma Chunlin;Zhang Jing;Li Jun;Zhang Yachao;Li Wenjing(Beijing Key Laboratory of Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing 100124, China)

机构地区：[1]北京工业大学水质科学与水环境恢复工程北京市重点实验室,北京100124

出　　处：《给水排水》2019年第6期108-113,共6页Water & Wastewater Engineering

基　　金：国家水体污染控制与治理科技重大专项(2014ZX07406002)

摘　　要：在前期小试的基础上,进行氯化钠改性沸石滤料处理屋面雨水的中试试验。考察装填氯化钠改性沸石的滤罐及滤料装填方式、进水流速对其去除屋面雨水污染物效果的影响。研究结果表明:改性沸石滤料的最佳装填方式为大粒径沸石在上、小粒径沸石在下,最佳进水流速为6m3/h。该条件下,对实际屋面雨水的氨氮去除率超过80%,COD去除率超过60%,同时出水SS小于10mg/L。经反冲洗后,滤料可重复多次使用,出水水质满足《建筑与小区雨水控制及利用工程技术规范》(GB50400-2016)要求。Based on the preliminary experiments,apilot-scale test of roof rainwater treated by sodium chloride modified zeolite as filter media was carried out.The test was conducted to investigate the pollutants treatment effect of the roof rainwater by modified zeolite as filter media with media loading method and inflow rate.The results show that the best loading method for modified zeolite as filter media is large particle size on the small particle size,and the best inflow rate is 6 m^3/h.The removal rate of ammonia nitrogen is more than 80%,the COD removal rate is more than 60%,and the effluent SS is less than 10 mg/L.By backwashing,the filter material can be restored use.The quality of the effluent satisfies the requirements of the Technical code for rainwater management and utilization of building and sub-district(GB 50400-2016).

关 键 词：屋面雨水 改性沸石 氯化钠 过滤 氨氮去除 

分 类 号：TU823[建筑科学]