Sequential extraction evaluation of heavy-metal-contaminated soil: How clean is clean?

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As a result of industrial and military operations, large amounts of land have become contaminated with heavy metals. A growing public awareness of metal toxicity in soils and water has forced increased treatment and improved remediation techniques. To develop an adequate knowledge base to definitively judge the usefulness of the remediation technology requires some basic research in how the contaminants are bound in the soil. In this study, the classic five-step sequential extractions were performed on heavy-metal-contaminated soil from Aberdeen Proving Ground to determine the speciation of the metal forms. This technique speciates the heavy metal distribution into an easily ... continued below

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14 p.

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Li, Wen; Peters, R.W.; Brewster, M.D. & Miller, G.A. July 1, 1995.

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Description

As a result of industrial and military operations, large amounts of land have become contaminated with heavy metals. A growing public awareness of metal toxicity in soils and water has forced increased treatment and improved remediation techniques. To develop an adequate knowledge base to definitively judge the usefulness of the remediation technology requires some basic research in how the contaminants are bound in the soil. In this study, the classic five-step sequential extractions were performed on heavy-metal-contaminated soil from Aberdeen Proving Ground to determine the speciation of the metal forms. This technique speciates the heavy metal distribution into an easily extractable (exchangeable) form, carbonates, reducible oxides, organically-bound forms, and residual forms. In order to compare the results of these fractionations with the amount of heavy metals extracted by chelating agents, multi-stage extractions with EDTA were also performed. The results were used to determine the feasibility of using soil washing and soil flushing techniques for remediating the Aberdeen metals-contaminated soils.

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14 p.

Notes

OSTI as DE95013716

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  • Air and Waste Management Association meeting, San Antonio, TX (United States), 18-23 Jun 1995

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  • Other: DE95013716
  • Report No.: ANL/ES/CP--85526
  • Report No.: CONF-950646--25
  • Grant Number: W-31-109-ENG-38
  • Office of Scientific & Technical Information Report Number: 105067
  • Archival Resource Key: ark:/67531/metadc624200

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • July 1, 1995

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  • June 16, 2015, 7:43 a.m.

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  • April 21, 2016, 10:06 p.m.

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Li, Wen; Peters, R.W.; Brewster, M.D. & Miller, G.A. Sequential extraction evaluation of heavy-metal-contaminated soil: How clean is clean?, article, July 1, 1995; Illinois. (digital.library.unt.edu/ark:/67531/metadc624200/: accessed December 14, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.