Pollutant transport within the vadose zone: Interactions of soil horizon chemistry on water quality

Daniel P. Treese, Shirley E. Clark, J. Bradley Mikula, Katherine H. Baker

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

Hydrologic cycle restoration is the primary objective of stormwater management. Infiltration and biofiltration systems composed of engineered soils have become a preferred tool for obtaining this objective while also providing pollutant removal. It is desirable, though, to limit soil disturbance and incorporate native soils. The use of native soils requires a fundamental understanding of their behavior towards water transport and pollutant treatment. Their structure is not homogeneous but instead contains several layers, or "horizons," each with differing pollutant removal capacity. The ability of the various horizons to treat runoff was investigated over 40 simulated storm events in two soil types, a Wharton silt loam and Leetonia loamy sand. Effluent water results showed leaching of total nitrogen and removal of total phosphorus by all soil horizons of both soil types. Potassium leached from the organic horizons of both soils, the silt loam showed removal by lower horizons while the loamy sand did not. All soil horizons of both soil types lowered the pH of influent stormwater and increased conductivity, turbidity, color, and hardness.

Original languageEnglish (US)
Title of host publicationProceedings of World Environmental and Water Resources Congress 2009 - World Environmental and Water Resources Congress 2009
Subtitle of host publicationGreat Rivers
Pages1451-1459
Number of pages9
DOIs
StatePublished - Oct 26 2009
EventWorld Environmental and Water Resources Congress 2009: Great Rivers - Kansas City, MO, United States
Duration: May 17 2009May 21 2009

Publication series

NameProceedings of World Environmental and Water Resources Congress 2009 - World Environmental and Water Resources Congress 2009: Great Rivers
Volume342

Other

OtherWorld Environmental and Water Resources Congress 2009: Great Rivers
CountryUnited States
CityKansas City, MO
Period5/17/095/21/09

All Science Journal Classification (ASJC) codes

  • Environmental Science(all)

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