摘要
以3种基质厚度(100、150和200 mm)和3种基质类型(再生砖、珍珠岩和园林土)为控制变量,在深圳市光明新区试制了5组屋顶绿化示范装置并进行长期跟踪检测。结果表明,增大绿色屋顶的基质厚度可增强对雨水径流中SS、TN和NH3-N的控制效果,但对磷的控制效果影响不显著;当绿色屋顶基质厚度为150 mm时,屋面对有机物的控制效果最优。与园林土屋面相比,再生砖屋面对有机物的控制效果较好,珍珠岩屋面对磷的控制效果较好。添加再生砖和珍珠岩后,能够提高屋面对总氮和氨氮的去除效果,但出水SS浓度会升高。
Five experimental green roofs were established in Guangming New District of Shenzhen City. The control variables include substance thickness （100 mm, 150 mm and 200 mm） and substance types （recycled brick, pearlite and garden soil）. Increasing substance thickness could enhance the removal efficiencies of SS, TN and NH3 - N, but it had a poor influrnce on phosphorus removal. The organic removal efficiency of roofs under 150 mm thickness got the optimal value. Compared with garden soil roof, recycled brick roof had a better organic control effect, and pearlite roof could control phosphorus effectively. Furthermore, recycled brick and pearlite roof could improve the removal efficiencies of TN and NH3 -N, but SS concentration in effluent would be increased.
出处
《中国给水排水》
CAS
CSCD
北大核心
2016年第7期135-138,共4页
China Water & Wastewater
基金
国家水体污染控制与治理科技重大专项(2010ZX07320-001)
关键词
低影响开发
屋顶绿化
基质
雨水径流
low impact development
green roof
substance
stormwater runoff
