The use of bioretention cell to decreasing outflow from parking lot

Journal of Water and Land Development

Andrzej Wałęga^1¹  Marta Cebulska^2² 

[1] 30-059, Kraków, Poland^1;Kraków, Poland^2

关键词: bioretention system;    Euler hyetographs;    sewage system;    stormwater;    SWMM;    urban catchment;   

DOI  :  10.2478/jwld-2018-0017

学科分类：农业科学（综合）

来源: Instytut Technologiczno-Przyrodniczego / Institute of Technology and Life Sciences

【 摘 要 】

The objective of the research was to look into the role that bioretention systems play in a decentralized management of stormwater runoff from the impervious areas. The study took place at a catchment of a low permeability and equipped with a combined sewer system. Two rainfall options were selected: actual rainfall intensity q = 105.65 dm3∙s−1∙ha−1 and a hypothetic rainfall with a probability of exceedance p = 10% and q = 40.7 dm3∙s−1∙ha−1. All calculations were carried out using the SWMM EPA program (storm water management model; Environmental Protection Agency). They have shown that the bioretention system reduces the cumulative flow rates by over 55% and the flood wave volume by over 54%. Moreover, it was found that, a precipitation pattern significantly influences runoff from the urban catchment.

【 授权许可】

Unknown