Abstract: The effects of temperature, pH, sludge age in the prior activated sludge process, initial sludge solids concentration, and sludge type on the rate of solids degradation during aerobic sludge stabilization are discussed. ...

Abstract: Current regulations governing the closure of a waste impoundment require either complete removal of the contained material or appropriate remediation of the material in the impoundment followed by application of a permitted ...

Abstract: This study evaluated long term primary and secondary leachate production from operating landfills in the northeastern United States. The data were obtained for periods when the landfills were in use (open) and were covered ...

Abstract: The fate and transport of chemicals of concern released from field soils must be known to protect human and ecological receptors. A mechanistic approach to modeling chemical release from soil is advantageous to implement ...

Abstract: The suitability of an aerobic biological treatment process for the removal of polyaromatic hydrocarbon (PAH) from a creosote contaminated field soil was evaluated. Project objectives were to determine: (1) the overall loss ...

Abstract: An increasing weight of evidence has indicated that under certain conditions chemicals above background levels in soils may not be easily released and thus may not have an adverse environmental effect. This has led to a ...

Abstract: In this study, the relationship between the release characteristics of contaminants from soil and the biodegradability of the contaminants was evaluated. The soils used were from a large-scale field site. A batch rate of ...

Abstract: Soil-water distribution coefficients

Abstract: The long-term leaching of metals from concrete products made with spent abrasive media was investigated using a sequential extraction procedure employing both an acidic extraction fluid and seawater. By using seawater, ...

Abstract: Existing land treatment systems in the food-processing and pulp-and-paper industries are surveyed to obtain site and operation information. The results indicate that: (1) Land treatment is used as a waste-management ...