Total pollution effect of urban surface runoff |
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| Authors: | LUO Hongbing LUO Lin HUANG Gu LIU Ping LI Jingxian HU Sheng WANG Fuxiang XU Rui and HUANG Xiaoxue |
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| Affiliation: | 1. State Key Laboratory of Hydraulics and Mountain River Engineering, College of Architecture and Environment,
Sichuan University, Chengdu 610065, China
2. College of Urban and Rural Construction, Sichuan Agricultural University, Du Jiangyan 611830, China,1. State Key Laboratory of Hydraulics and Mountain River Engineering, College of Architecture and Environment,
Sichuan University, Chengdu 610065, China,3. China Urban Construction Design & Research Institute, Beijing 100029, China,1. State Key Laboratory of Hydraulics and Mountain River Engineering, College of Architecture and Environment,
Sichuan University, Chengdu 610065, China,3. China Urban Construction Design & Research Institute, Beijing 100029, China,3. China Urban Construction Design & Research Institute, Beijing 100029, China,4. Suzhou University of Science and Technology, Suzhou 215011, China,1. State Key Laboratory of Hydraulics and Mountain River Engineering, College of Architecture and Environment,
Sichuan University, Chengdu 610065, China and 1. State Key Laboratory of Hydraulics and Mountain River Engineering, College of Architecture and Environment,
Sichuan University, Chengdu 610065, China |
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| Abstract: | For pollution research with regard to urban surface runo , most sampling strategies to date have focused on di erences in land usage.
With single land-use sampling, total surface runo pollution e ect cannot be evaluated unless every land usage spot is monitored.
Through a new sampling strategy known as mixed stormwater sampling for a street community at discharge outlet adjacent to river,
this study assessed the total urban surface runo pollution e ect caused by a variety of land uses and the pollutants washed o from the
rain pipe system in the Futian River watershed in Shenzhen City of China. The water quality monitoring indices were COD (chemical
oxygen demand), TSS (total suspend solid), TP (total phosphorus), TN (total nitrogen) and BOD (biochemical oxygen demand). The
sums of total pollution loads discharged into the river for the four indices of COD, TSS, TN, and TP over all seven rainfall events were
very di erent. The mathematical model for simulating total pollution loads was established from discharge outlet mixed stormwater
sampling of total pollution loads on the basis of four parameters: rainfall intensity, total land area, impervious land area, and pervious
land area. In order to treat surface runo pollution, the values of MFF30 (mass first flush ratio) and FF30 (first 30% of runo volume)
can be considered as split-flow control criteria to obtain more e ective and economical design of structural BMPs (best management
practices) facilities. |
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| Keywords: | total pollution effect mixed stormwater sampling street community pollution loads split-out flow control |
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