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Past Projects

This applied research project successfully demonstrated in-situ topsoil manufacture by incorporating large amounts of yard trimmings compost into the soil incineration ash.

Treatment of municipal wastewater produces sewage sludge, a dilute suspension of solids in water. Sewage sludge contains significant amounts of essential plant nutrients and organic matter that can benefit crop production.

Biosolids are commonly applied to pastures and crop fields. The trace element Mo, contained in biosolids, is of concern because in ruminant animals excessive Mo intake can induce Cu deficiency, a condition known as molybdenosis.

This experiment was conducted to investigate the use of biosolids incinerator ash from the Allegheny County Sanitary Authority (ALCOSAN) as a phosphorus (P) source for turfgrass soils.