Membrane and Water Treatment

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Analysis of pollutant build-up model applied to various urban landuse

  • Choi, Jiyeon (Water Environment Research Department, National Institute of Environmental Research) ;
  • Na, Eunhye (Water Environment Research Department, National Institute of Environmental Research) ;
  • Ryu, Jichul (Water Environment Research Department, National Institute of Environmental Research) ;
  • Kim, Jinsun (Water Environment Research Department, National Institute of Environmental Research) ;
  • Kim, Hongtae (Water Environment Research Department, National Institute of Environmental Research) ;
  • Shin, Dongsuk (Water Environment Research Department, National Institute of Environmental Research)
  • Received : 2018.04.30
  • Accepted : 2018.09.03
  • Published : 2019.01.25
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Abstract

This study was conducted to analyse the application of pollutant build-up model on various urban landuses and to characterize pollutant build-up on urban areas as a source of stormwater runoff pollution. The monitored data from impervious surfaces in urban areas such as commercial (8 sites), industrial (10 sites), road (8 sites), residential (10 sites), recreational (5 sites) from 2008 to 2016 were used for the analysis of pollutant build-up model. Based on the results, the average runoff coefficients vary from 0.35 to 0.61. In all landuses except recreational landuse, the runoff coefficient is 0.5 or more, which is the highest in the commercial area. Commercial landuse where pollutants occur at the highest EMC in all landuse, and it is considered that NPS management is necessary compared with other landuses. The maximum build-up load for organic matter (BOD) was highest in the commercial area ($4.59g/m^2$), and for particular matter (TSS) in the road area ($5.90g/m^2$) while for nutrient (TN and TP) in the residential area ($0.40g/m^2$, $0.14g/m^2$). The rate constants ranged from 0.1 to 1.3 1/day depending on landuse and pollutant parameters, which means that pollutant accumulation occurs between 1 and 10 days during dry day. It is clear that these build-up curves can generally be classified based on landuse. Antecedent dry day (ADD) is a suitable and reasonable variable for developing pollutant build-up functions. The pollutant build-up curves for different landuse shows that these build-up curves can be generally categorized based on landuse.

Keywords

Acknowledgement

Supported by : National Institute Environmental Research (NIER)

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