Reduction Effect of Nonpoint Source Pollutants and Drainage of Infiltration Grate Inlet

침투형 빗물받이의 배수 및 비점오염물질 저감 효과

  • Lee, Wonyong (Department of Environmental Engineering, Daejeon University) ;
  • Lim, Bongsu (Department of Environmental Engineering, Daejeon University) ;
  • Park, Insung (Hankook Suan Co., LTD)
  • Received : 2017.03.08
  • Accepted : 2017.07.21
  • Published : 2017.07.30


This study was to estimate the reduction effect of nonpoint source pollutants according to the rainfall intensity and drainage of infiltration grate inlet. Soil infiltration flow was measured on-site and SS load by the filter part was calculated by the experimental data in laboratory reactor test. Soil infiltration flow was measured to be about $1m^3/hr$ in soil condition saturated with water. The filter part of the infiltration grate inlet was a hydraulic equipment unhindered by soil infiltration on the bottom of the storage tank, because the infiltration flow was measured to be about $3m^3/hr$ continuously in the closing infiltration hole condition. Infiltration flow and SS load were over about $1m^3/hr$ and 1.71 kg according to laboratory results by the filter part using the artifical sample. Therefore, the above values could be presented as the limitted value to start the reduction of filtration effect. Reduction efficiencies of SS load by the filter part for the rainfall intensity were about 87 % at 5 mm/hr and about 61 % at 10 mm/hr in consideration of one infiltration grate inlet got the drainage area about $200m^2$. The reduction efficiency of nonpoint source pollutants was very effective in the first flush rainfall. However, the reduction efficiency by rainfall density was higher than by flow.


Supported by : 대전녹색환경지원센터


  1. Choi, J., Kim, S., Lee, S., Nam, G., Cho, H., and Kim, L. H. (2013). Development Hybrid Filter System for Applicable on Various Rainfall, Journal of Wetlands Research, 15, 535-541. [Korean Literature]
  2. Dow, C. L. and Dewalle, D. R. (2000). Trends in Evaporation and Bowen Ratio on Urbanizing Watersheds in Eastern United States, Water Resources Research, 36, 1835-1843.
  3. Hewitt, C. N. and Rashed, M. B. (1992). Removal Rates of Selected Pollutants in The Runoff Waters from a Major Rural Highway, Water Research, 26, 311-319.
  4. Kang, D. H. (2015). Analysis of The Reduction Effect of The Runoff and Non-Point Pollution Source by Multi-Function Filter Box, Master's Thesis, University of Seoul. [Korean Literature]
  5. Kang, Y. T. (2002). Strategy for The Practical Use of Rainfall-Runoff Reduction Facilities with Development, Master's Thesis Yonsei University. [Korean Literature]
  6. Kim, K. M. and Kim, J. S. (2015). The Introduction Trend and Preview Point of Low Impact Development in Water Cycle System, National Asembly Research Services, Issue and Point, 1017. [Korean Literature]
  7. Kim, Y. H. (2011). A Study on Reduction Facility of Nonpoint Pollution Source and Rainfall-Runoff, Master's Thesis, Graduate School of Industry, Yeungnam University. [Korean Literature]
  8. Korea Watstewater Works Association. (2011). Sewerage Facility Standard. Korea Watstewater Works Association. [Korean Literature]
  9. Lee, W. Y. (2017). Reduction Effect of Nonpoint Source Pollutants and Drainage of Infiltration Grate Inlet, Master's Thesis, Daejeon University. [Korean Literature]
  10. Ministry of Environment (MOE). (2016). Standard Methods for The Examination of Water Pollution, Ministry of Environment. [Korean Literature]
  11. Perdikaki, K. and Mason, C. F. (1999). Impact of Road Run-Off on Receiving Streams in Eastern England, Water Research, 33, 1627-1633.
  12. Son, H. G., Lee, E. J., Lee, S. Y., and Kim, L. H. (2008). Determination of Non-Point Pollutant Unit Loads in Toll-Gate of Highway, Journal of Wetlands Research, 10, 69-75. [Korean Literature]
  13. Tokyo City Maintenance Bureau, (2012). Technology Guideline for Installation of Temporary Strage Tank of Public Facilities Based on Urgent Heavy Rain Measure. [Japanese Literature]
  14. Yoon, Y. S. (2009). A Study on Treatment of First Flush Rainwater Using Media, Master's Thesis, Graduate School of Industry Engineering, Seoul National University of Technology. [Korean Literature]