【摘要】 指出了生物滞留池作为海绵城市的重要技术之一,可以有效地防止面源污染和控制雨水径流。研究监测了一个参照澳大利亚《雨水生物滞留系统设计导则》建设的雨水生物滞留池,分析了其对自然降雨事件中水量和水质的控制效果,验证了其在中国的应用。结果表明:此类雨水生物滞留池对降雨量小于10 mm的中小型降雨具备很好的径流控制能力,能有效地延缓洪峰流量。同时,该系统对TSS、TP、TN、COD、BOD5以及粪大肠菌群均有较好的去除效果。此外,生物滞留池植物的生长和进水负荷会对污染物的去除效果产生一定的影响。更多还原

【Abstract】 As one of the key Sponge City technologies, bioretention systems are effective in both controlling the runoff volumes and non-point source pollutions. This study monitored a bioretention system that was designed according to the Australian "Adoption Guidelines for Stormwater Biofiltration Systems", investigated its performance in hydraulic and water treatment performance. The results show that the studied bioretention system was excellent in managing the runoff volume for small to medium rainfall events(<10 mm) and was able to attenuate the peak runoff rates effectively. The system was also able to remove TSS, TP, TN,COD, BOD5 and E.coli in stormwater. Results also indicate that the plants as well as the hydraulic loading rates impacted the treatment performance of the bioretention system.更多还原