不同屋面和立面绿化基质对雨水径流的净化效果研究  

Study on the Purification Effect of Different Roof and Facade Greening Substrates on Rainwater Runoff

作　　者：粟春青 郑卫国 路洋 罗炘武 韩梦梦 宫彦章 SU Chun-qing;ZHENG Wei-guo;LU Yang(Guangdong Wenke Green Technology Co.,Ltd.,Shenzhen,Guangdong 518111)

机构地区：[1]广东文科绿色科技股份有限公司,广东深圳518111

出　　处：《安徽农业科学》2024年第24期184-187,共4页Journal of Anhui Agricultural Sciences

基　　金：深圳市科技计划项目(KCXFZ202002011006491)。

摘　　要：通过模拟屋面与立面绿化渗滤系统,研究不同屋面绿化基质和立面绿化基质对雨水径流的净化效果。结果表明:屋面绿化基质以玻璃轻石+陶粒+河沙处理的污染物去除率最大,对总氮(TN)、氨氮、总磷(TP)、化学需氧量(COD)的去除率分别为41.31%、55.07%、43.65%和36.36%;以玻璃轻石+陶粒为屋面绿化基质对污染物的净化效果不佳;玻璃轻石+陶粒+泥炭土、泥炭土对总磷的去除率均大于90%,但其对氮的去除效率不高;立面绿化基质中,生物炭、土非土的净化效果较好,生物炭对氨氮、总磷的去除率分别为98.45%和92.93%,岩棉、岩棉+玻璃轻石、炭棉对氮、磷的去除效果均较差。其中,岩棉处理的总氮、氨氮去除率分别为-20.42%和5.06%,而岩棉+玻璃轻石处理的总氮、总磷去除率均为负值。Roof and facade greening infiltration system were simulated to study the purification effect of different roof greening substrates and facade greening substrates on rainwater runoff.The results showed that the pollutant removal rate of glass light stone+ceramsite+river sand was the highest,and the removal rates of total nitrogen(TN),ammonia nitrogen,total phosphorus(TP)and chemical oxygen demand(COD)were 41.31%,55.07%,43.65%and 36.36%,respectively.The purification effect of glass light stone+ceramsite as roof greening substrate was not good.The removal rate of TP by glass light stone+ceramsite+peat soil and peat soil was more than 90%,but the removal efficiency of nitrogen was not high.The purification effect of biochar and non-soil was better in the facade greening substrate.The removal rates of ammonia nitrogen and TP by biochar were 98.45%and 92.93%,respectively.The removal effects of nitrogen and phosphorus by rock wool,rock wool+glass light stone and carbon wool were worse.The removal rates of TN and ammonia nitrogen by rock wool treatment were-20.42%and 5.06%,respectively.While,the removal rates of TN and TP by rock wool+glass light stone were negative.

关 键 词：屋面绿化 立面绿化 基质 雨水径流 净化能力 

分 类 号：X171[环境科学与工程—环境科学]