The Effect of Impermeable Surface and Rainwater Infiltration Facilities on the Runoff pH of Housing Complexes

빗물 유출면 및 빗물 침투시설이 주거단지 유출빗물의 pH에 미치는 영향

  • Hyun, Kyoung-Hak (Land & Housing Institute, Korea Land & Housing Corporation) ;
  • Choi, Joung-Joo (Land & Housing Institute, Korea Land & Housing Corporation) ;
  • Choung, Youn-Kyoo (Department of Civil & Environmental Engineering, Yonsei University)
  • 현경학 (한국토지주택공사 토지주택연구원) ;
  • 최정주 (한국토지주택공사 토지주택연구원) ;
  • 정연규 (연세대학교 토목.환경공학과)
  • Received : 2009.09.09
  • Accepted : 2010.01.14
  • Published : 2010.02.28

Abstract

In order to examine the effect of impermeable surface (rooftop, outdoor parking lot) and rainwater infiltration facilities on runoff pH, pH was measured. pH measurement spots were splash blocks accepted roof runoff of 3 sites, infiltration boxes and trenches accepted parking lot runoff and plastic rainwater harvesting facility accepted roof runoff. These measurements were operated at 3 housing complexes from 2006 to 2009. The rainwater runoff pH was influenced by the quality of the runoff surface material (concrete), the age of the building, waterproofing methods according to each housing site, antecedent rainfall conditions and others. Rain garden, infiltration boxes and trenches decreased the alkalinity of runoff by detention and infiltrating the roof and outdoor parking lot runoff. These results mean that decentralized rainwater management facilities of housing complexes can reduce effect on the outskirt aquatic ecosystem by the accumulation of substances causing pH rising in the infiltration facilities and rain garden.

Keywords

References

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