title: Decision support for environmental management of industrial non-hazardous secondary materials: New analytical methods combined with simulation and optimization modeling.
abstract: Non-hazardous solid materials from industrial processes, once regarded as waste and disposed in landfills, offer numerous environmental and economic advantages when put to beneficial uses (BUs). Proper management of these industrial non-hazardous secondary materials (INSM) requires estimates of their probable environmental impacts among disposal as well as BU options. The U.S. Environmental Protection Agency (EPA) has recently approved new analytical methods (EPA Methods 1313-1316) to assess leachability of constituents of potential concern in these materials. These new methods are more realistic for many disposal and BU options than historical methods, such as the toxicity characteristic leaching protocol. Experimental data from these new methods are used to parameterize a chemical fate and transport (F&T) model to simulate long-term environmental releases from flue gas desulfurization gypsum (FGDG) when disposed of in an industrial landfill or beneficially used as an agricultural soil amendment. The F&T model is also coupled with optimization algorithms, the Beneficial Use Decision Support System (BUDSS), under development by EPA to enhance INSM management.
authors.affiliation: RTI International, 3040, E. Cornwallis Road, Research Triangle Park, NC, 27709, United States.
authors.forename: Keith W
authors.initials: KW
authors.lastname: Little
authors.affiliation: Pegasus Technical Services, Inc., 46 E. Hollister St, Cincinnati, OH, 45219, United States.
authors.forename: Nadeesha H
authors.initials: NH
authors.lastname: Koralegedara
authors.affiliation: RTI International, 3040, E. Cornwallis Road, Research Triangle Park, NC, 27709, United States.
authors.forename: Coleen M
authors.initials: CM
authors.lastname: Northeim
authors.affiliation: U.S. Environmental Protection Agency, National Risk Management Research Laboratory, 26 W. Martin Luther King Dr., Cincinnati, OH, 45268, United States. Electronic address: al-abed.souhail@epa.gov.
authors.forename: Souhail R
authors.initials: SR
authors.lastname: Al-Abed
mesh_terms: D003247:Conservation of Natural Resources; D015386:Hazardous Substances; D007220:Industrial Waste; D012037:Refuse Disposal; D012987:Soil; D014481:United States; D014484:United States Environmental Protection Agency
chemical_list: D015386:Hazardous Substances; D007220:Industrial Waste; D012987:Soil
keywords: Beneficial use decision support system; Beneficial uses; Fate and transport model; Industrial non-hazardous secondary materials