Compost key to superfund site restoration

Article Abstract:

A cleanup team at the former Drake Chemical Superfund site in Lockhaven, PA, has established permanent vegetative cover at the facility by combining soil incineration and yard trimmings compost. Soil at the site was contaminated with several organic chemicals, including the carcinogen beta-naphthylamine. Contaminants were removed by heat-treating the soil in a rotary kiln at around 1,700 deg F. The resultant, infertile soil ash was mixed with yard trimmings compost and the establishment of vigorous vegetative cover was successfully and economically achieved.

Management, Usage, Pollution, Compost, Soil pollution, Pennsylvania, Contamination, Chemical plants

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Quality of land applied biosolids in Pennsylvania

Article Abstract:

A survey of the concentrations of biosolids trace elements in Pennsylvania has revealed that since 1978 the quality of biosolids has improved significantly. Land-applied biosolids will be restricted in the long-term by copper build-up; however, existing concentrations of trace elements are significantly lower than regulatory quality standards in 95% of biosolids. The trace elements examined include mercury, copper, lead, arsenic, cadmium, chromium, nickel, selenium, zinc, and molybdenum.

Quality management, Soils, Water treatment plants, Trace pollutants

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Soil quality fundamentals

Article Abstract:

The maximization of benefits of recycled organic products and the minimization of its undesirable effects is discussed. Understanding soil science, formation and physical properties is the first step of the process.

Evaluation, Environmental aspects, Soil management, Soil management (Agronomy), Recycled materials

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