TY - GEN
T1 - Pollutant transport within the vadose zone
T2 - World Environmental and Water Resources Congress 2009: Great Rivers
AU - Treese, Daniel P.
AU - Clark, Shirley E.
AU - Mikula, J. Bradley
AU - Baker, Katherine H.
PY - 2009
Y1 - 2009
N2 - 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.
AB - 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.
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U2 - 10.1061/41036(342)143
DO - 10.1061/41036(342)143
M3 - Conference contribution
AN - SCOPUS:70350166648
SN - 9780784410363
T3 - Proceedings of World Environmental and Water Resources Congress 2009 - World Environmental and Water Resources Congress 2009: Great Rivers
SP - 1451
EP - 1459
BT - Proceedings of World Environmental and Water Resources Congress 2009 - World Environmental and Water Resources Congress 2009
Y2 - 17 May 2009 through 21 May 2009
ER -