高速公路路面雨水径流下渗系统性能研究
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摘要
为了分析径流下渗系统在径流削减和污染控制方面的性能,本文对一个高速公路路面雨水径流下渗系统性进行了监测.结果表明,降雨量、径流量、径流削减量和径流排放量之间存在明显的正相关性(r=0.82～0.97,p<0.05).该系统表现出高效的径流削减能力,当降雨量小于20 mm时,可以削减70%以上的径流量.与径流削减相比,该系统在污染物负荷控制方面更为有效.当降雨量在0～10 mm之间时,污染负荷的削减率几乎为100%;而当降雨在10～20 mm之间时,污染负荷的削减率仍然可以超过60%.相对总氮(TN)和总磷(TP)而言,下渗系统对悬浮物(SS)和化学需氧量(COD_(Cr))的去除能力要更高、更稳定.研究表明,径流下渗系统作为雨水管理的工具,在径流削减和改善水质方面具有良好的性能.
An infiltration trench receiving highway stormwater was investigated to analyze its operational capacity both in runoff volume reduction and pollution elimination. It was detected that there are obviously positive correlations among rainfall, runoff, reduction and discharge volume(r= 0.67～0.91, p<0.05). The system worked effectively in reducing the runoff volume by more than 70% for the storm events with rainfall less than 20 mm. Comparable with stormwater reduction, the system was more effective in reducing the pollutant load, almost 100% for the rainfall between 0 and 10 mm; while still over 60% for the rainfall between 10 and 20 mm. Among the pollutant parameters selected, SS and COD_(Cr) were highly and steadily reduced by the system compared to TN and TP. The findings have proven the capability of infiltration trench as a tool in stormwater management achieving both flow reduction and water quality improvement.
An infiltration trench receiving highway stormwater was investigated to analyze its operational capacity both in runoff volume reduction and pollution elimination. It was detected that there are obviously positive correlations among rainfall, runoff, reduction and discharge volume(r= 0.67～0.91, p<0.05). The system worked effectively in reducing the runoff volume by more than 70% for the storm events with rainfall less than 20 mm. Comparable with stormwater reduction, the system was more effective in reducing the pollutant load, almost 100% for the rainfall between 0 and 10 mm; while still over 60% for the rainfall between 10 and 20 mm. Among the pollutant parameters selected, SS and COD_(Cr) were highly and steadily reduced by the system compared to TN and TP. The findings have proven the capability of infiltration trench as a tool in stormwater management achieving both flow reduction and water quality improvement.
引文
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Zhao H,Jiang Q,Xie W,et al.2018.Role of urban surface roughness in road-deposited sediment build-up and wash-off[J].Journal of Hydrology,560:75-85
Bockhorn B,Klint K E S,Locatelli L,et al.2017.Factors affecting the hydraulic performance of infiltration based SUDS in clay [J].Urban Water Journal,14(2):125-133
Bonneau J,Fletcher T D,Costelloe J F,et al.2017.Stormwater infiltration and the ‘urban karst’-A review[J].Journal of Hydrology,552:141-150
Buurman J,Padawangi R.2017.Bringing people closer to water:integrating water management and urban infrastructure [J].Journal of Environmental Planning and Management,(3):1-18
Chen Y,Park K,Niu S,et al.2014.Performance of a half-saturated vertical flow wetland packed with volcanic gravel in stormwater treatment [J].Water Science and Technology,69:2331-2338
Choi J,Maniquiz-Redillas M C,Hong J,et al.2018.Selection of cost-effective Green Stormwater Infrastructure (GSI) applicable in highly impervious urban catchments [J].KSCE Journal of Civil Engineering,22(1):24-30
Eaton T T.2018.Approach and case-study of green infrastructure screening analysis for urban stormwater control [J].Journal of Environmental Management,209:495-504
Fanelli R,Prestegaard K,Palmer M.2017.Evaluation of infiltration—based stormwater management to restore hydrological processes in urban headwater streams [J].Hydrological Processes,31(19):3306-3319
Guerra H B,Yu J,Kim Y.2018.Variation of flow and filtration mechanisms in an infiltration trench treating highway stormwater runoff[J].Journal of wetlands Research,20(1):63-71
Im J,Cho K,Gil K.2016.Determination of the first-flush criteria from railway bridge area[J].Desalination & Water Treatment,57(2):694-708
Kazemi F,Golzarian M R,Myers B.2018.Potential of combined water sensitive urban design systems for salinity treatment in urban environments [J].Journal of Environmental Management,209:169-175
Kumar K,Kozak J,Hundal L,et al.2016.In-situ infiltration performance of different permeable pavements in a employee used parking lot-A four-year study [J].Journal of Environmental Management,167:8-14
Ladislas S,Gerente C,Chazarenc F,et al.2015.Floating treatment wetlands for heavy metal removal in highway stormwater ponds [J].Ecological Engineering,80:85-91
Li L,Davis A P.2014.Urban stormwater runoff nitrogen composition and fate in bioretention systems [J].Environmental Science and Technology,48:3403-3410
李平,王晟.2014.生物滞留技术控制城市面源污染的作用与机理[J].环境工程,32(3):75-79
刘芳,侯立柱.2012.土壤渗滤介质系统去除雨水径流污染物[J].环境工程学报,6(12):4294-4298
Maniquiz M C,Kim L H,Lee S,et al.2012.Flow and mass balance analysis of eco-bio infiltration system [J].Frontiers of Environmental Science & Engineering,6(5):612-619
Petrucci G,De Bondt K,Claeys P.2017.Toward better practices in infiltration regulations for urban stormwater management [J].Urban Water Journal,14(5):546-550
Tedoldi D,Chebbo G,Pierlot D,et al.2017.Spatial distribution of heavy metals in the surface soil of source-control stormwater infiltration devices-Inter-site comparison [J].Science of the Total Environment,579:881-892
田婧,刘丹.2018.生物炭对生物滞留池水文效果的影响[J].西南交通大学学报,53(2):420-426
袁宏林,魏颖,谢纯德.2015.土壤对城市雨水径流中污染物的削减作用[J].水土保持通报,35(3):112-115
吴建,夏威夷,顾兴宇,等.2018.新型绿地填料对路面径流中重金属的去除效果试验研究[J].环境污染与防治,40(1):63-68
尹海龙,解铭,徐祖信,等.2015.基于动态渗透的雨水塘下渗设计及运行方法[J].同济大学学报:自然科学版,43(5):729-735
Zhang D,Gersberg R M,Ng W J,et al.2017.Conventional and decentralized urban stormwater management:A comparison through case studies of Singapore and Berlin,Germany[J].Urban Water Journal,14(2):113-124
Zhao H,Jiang Q,Xie W,et al.2018.Role of urban surface roughness in road-deposited sediment build-up and wash-off[J].Journal of Hydrology,560:75-85