In situ remediation process using divalent metal cations

Brady, Patrick V.; Khandaker, Nadim R.; Krumhansl, James L.; Teter, David M.

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A - human necessities
A01 - agriculture
A21 - baking
A22 - butchering
A23 - foods or foodstuffs
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A42 - headwear
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A62 - life-saving
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B - performing operations
B01 - physical or chemical processes or apparatus in general
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B03 - separation of solid materials using liquids or using pneumatic tables or jigs
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Title: In situ remediation process using divalent metal cations

Abstract

An in situ process for treating ambient solid materials (e.g., soils, aquifer solids, sludges) by adding one or more divalent metal cations to the ambient solid material. The added divalent metal cations, such as Cu.sup.2+ or Zn.sup.2+, combine with metal oxide/hydroxides (e.g., ferric oxide/hydroxide or aluminum oxide/hydroxide) already present in the ambient solid material to form an effective sorbent material having a large number of positively-charged surface complexes that binds and immobilizes anionic contaminant species (e.g., arsenic or chromate). Divalent metal cations can be added, for example, by injecting an aqueous solution of CuSO.sub.4 into an aquifer contaminated with arsenic or chromate. Also, sludges can be stabilized against leaching of anionic contaminants through the addition of divalent metal cations. Also, an inexpensive sorbent material can be easily formed by mixing divalent metal cations with soil that has been removed from the ground.

Inventors:: Brady, Patrick V.; Khandaker, Nadim R.; Krumhansl, James L.; Teter, David M.

Issue Date:: 2004-12-14

Research Org.:: Sandia National Lab. (SNL-CA), Livermore, CA (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1175169

Patent Number(s):: 6830695

Application Number:: 10/356,148

Assignee:: Sandia Corporation

Patent Classifications (CPCs):: C - CHEMISTRY C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE C02F - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10S - TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS

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C - CHEMISTRY C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE C02F - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
C02F1/5236 - {using inorganic agents}
C02F2101/103 - {Arsenic compounds}

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10S - TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
Y10S210/911 - Cumulative poison
Y10S210/913 - Chromium
Y10S210/915 - Fluorine containing

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DOE Contract Number:: AC04-94AL85000

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

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                    Brady, Patrick V., Khandaker, Nadim R., Krumhansl, James L., and Teter, David M. In situ remediation process using divalent metal cations.  United States: N. p., 2004. 
        Web.

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                    Brady, Patrick V., Khandaker, Nadim R., Krumhansl, James L., & Teter, David M. In situ remediation process using divalent metal cations.  United States.

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                    Brady, Patrick V., Khandaker, Nadim R., Krumhansl, James L., and Teter, David M. Tue .  
        "In situ remediation process using divalent metal cations".  United States.  https://www.osti.gov/servlets/purl/1175169.

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@article{osti_1175169,

  title        = {In situ remediation process using divalent metal cations},

  author       = {Brady, Patrick V. and Khandaker, Nadim R. and Krumhansl, James L. and Teter, David M.},

  abstractNote = {An in situ process for treating ambient solid materials (e.g., soils, aquifer solids, sludges) by adding one or more divalent metal cations to the ambient solid material. The added divalent metal cations, such as Cu.sup.2+ or Zn.sup.2+, combine with metal oxide/hydroxides (e.g., ferric oxide/hydroxide or aluminum oxide/hydroxide) already present in the ambient solid material to form an effective sorbent material having a large number of positively-charged surface complexes that binds and immobilizes anionic contaminant species (e.g., arsenic or chromate). Divalent metal cations can be added, for example, by injecting an aqueous solution of CuSO.sub.4 into an aquifer contaminated with arsenic or chromate. Also, sludges can be stabilized against leaching of anionic contaminants through the addition of divalent metal cations. Also, an inexpensive sorbent material can be easily formed by mixing divalent metal cations with soil that has been removed from the ground.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2004},

  month        = {12}

}

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Works referenced in this record:

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Anion Scavengers for Low-Level Radioactive Waste Repository Backfills
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Adsorption of arsenite and arsenate on amorphous iron hydroxide
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Arsenic in drinking water-problems and solutions
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Similar Records

Title: In situ remediation process using divalent metal cations

Abstract

Citation Formats

Arsenic Adsorption and Oxidation at Manganite Surfaces. 1. Method for Simultaneous Determination of Adsorbed and Dissolved Arsenic Species journal, May 2000

Arsenic removal during conventional aluminium-based drinking-water treatment journal, May 2001

Arsenic Removal from Drinking Water during Coagulation journal, August 1997

An overview of arsenic removal processes journal, November 1995

Anion Scavengers for Low-Level Radioactive Waste Repository Backfills journal, March 1998

Uptake of Iodide by a Mixture of Metallic Copper and Cupric Compounds journal, May 1999

Adsorption technique for the treatment of As(V)-rich effluents journal, June 1996

Competitive adsorption of molybdate, chromate, sulfate, selenate, and selenite on γ-Al2O3 journal, June 2000

Sorption of Iodide on Cuprite (Cu 2 O) journal, May 2000

Predicting As removal during metal hydroxide precipitation journal, January 1997

Sorption and filtration of metals using iron-oxide-coated sand journal, November 1996

Arsenic Removal from Potable Water journal, July 1971

Removal of arsenic from groundwater using low cost ferruginous manganese ore journal, February 2002

Design and Synthesis of Selective Mesoporous Anion Traps journal, August 1999

Adsorption of arsenite and arsenate on amorphous iron hydroxide journal, January 1982

Arsenic in drinking water-problems and solutions journal, July 1999

Granular ferric hydroxide—a new adsorbent for the removal of arsenic from natural water journal, February 1998

Arsenic removal by ferric chloride journal, April 1996

Treatment of arsenic in Bangladesh well water using a household co-precipitation and filtration system journal, August 2001

Influence of pH and organic substance on the adsorption of As(V) on geologic materials journal, August 1988

Removal of arsenic from wastewater using chemical precipitation methods journal, May 1992

Flotation removal of As(V) onto goethite journal, January 1997

Arsenic Adsorption and Oxidation at Manganite Surfaces. 1. Method for Simultaneous Determination of Adsorbed and Dissolved Arsenic Species
journal, May 2000

Arsenic removal during conventional aluminium-based drinking-water treatment
journal, May 2001

Arsenic Removal from Drinking Water during Coagulation
journal, August 1997

An overview of arsenic removal processes
journal, November 1995

Anion Scavengers for Low-Level Radioactive Waste Repository Backfills
journal, March 1998

Uptake of Iodide by a Mixture of Metallic Copper and Cupric Compounds
journal, May 1999

Adsorption technique for the treatment of As(V)-rich effluents
journal, June 1996

Competitive adsorption of molybdate, chromate, sulfate, selenate, and selenite on γ-Al2O3
journal, June 2000

Sorption of Iodide on Cuprite (Cu ₂ O)
journal, May 2000

Predicting As removal during metal hydroxide precipitation
journal, January 1997

Sorption and filtration of metals using iron-oxide-coated sand
journal, November 1996

Arsenic Removal from Potable Water
journal, July 1971

Removal of arsenic from groundwater using low cost ferruginous manganese ore
journal, February 2002

Design and Synthesis of Selective Mesoporous Anion Traps
journal, August 1999

Adsorption of arsenite and arsenate on amorphous iron hydroxide
journal, January 1982

Arsenic in drinking water-problems and solutions
journal, July 1999

Granular ferric hydroxide—a new adsorbent for the removal of arsenic from natural water
journal, February 1998

Arsenic removal by ferric chloride
journal, April 1996

Treatment of arsenic in Bangladesh well water using a household co-precipitation and filtration system
journal, August 2001

Influence of pH and organic substance on the adsorption of As(V) on geologic materials
journal, August 1988

Removal of arsenic from wastewater using chemical precipitation methods
journal, May 1992

Flotation removal of As(V) onto goethite
journal, January 1997