James L Krumhansl from 813 Solano Dr NE, Albuquerque, NM 87110, age 79, Phone: 505 266-0946

Us Patents

In Situ Remediation Process Using Divalent Metal Cations
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US Patent:

6830695, Dec 14, 2004
Filed:

Jan 31, 2003
Appl. No.:

10/356148
Inventors:

Patrick V. Brady - Albuquerque NM
Nadim R. Khandaker - Albuquerque NM
James L. Krumhansl - Albuquerque NM
David M. Teter - Edgewood NM
Assignee:

Sandia Corporation - Albuquerque NM
International Classification:

C02F 128
US Classification:

210679, 210683, 210684, 210688, 210747, 210911, 210913, 4051285, 40512925
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 or Zn , 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 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.

Inorganic Ion Sorbents And Methods For Using The Same
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US Patent:

7074336, Jul 11, 2006
Filed:

Jun 20, 2001
Appl. No.:

09/886175
Inventors:

David M. Teter - Edgewood NM, US
Patrick V. Brady - Albuquerque NM, US
James L. Krumhansl - Albuquerque NM, US
Assignee:

Sandia Corporation - Albuquerque NM
International Classification:

C02F 1/28
US Classification:

210683, 210684, 210911, 210913
Abstract:

A process and medium for decontamination of water containing anionic species including arsenic and chromium, wherein compounds comprising divalent and trivalent metal oxides and sulfides are used to form surface complexes with contaminants under pH conditions within the range of potable water. In one embodiment natural and synthetic spinels and spinel-like materials are used as the sorbent substance.

Inorganic Ion Sorbents
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US Patent:

7122502, Oct 17, 2006
Filed:

Sep 30, 2004
Appl. No.:

10/955291
Inventors:

David M. Teter - Edgewood NM, US
Patrick V. Brady - Albuquerque NM, US
James L. Krumhansl - Albuquerque NM, US
Assignee:

Sandia Corporation - Albuquerque NM
International Classification:

B01J 20/00
US Classification:

502400, 502315, 502406
Abstract:

A process and medium for decontamination of water containing anionic species including arsenic and chromium, wherein compounds comprising divalent and trivalent metal oxides and sulfides are used to form surface complexes with contaminants under pH conditions within the range of potable water. In one embodiment natural and synthetic spinels and spinel-like materials are used as the sorbent substance.

Method Of Removing Arsenic And Other Anionic Contaminants From Contaminated Water Using Enhanced Coagulation
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US Patent:

7138063, Nov 21, 2006
Filed:

Feb 10, 2006
Appl. No.:

11/351365
Inventors:

David M. Teter - Edgewood NM, US
Patrick V. Brady - Albuquerque NM, US
James L. Krumhansl - Albuquerque NM, US
Nadim R. Khandaker - Albuquerque NM, US
Assignee:

Sandia Corporation - Albuquerque NM
International Classification:

C02F 1/58
C02F 101/14
C02F 101/22
US Classification:

210717, 210724, 210726, 210911, 210913, 210915
Abstract:

An improved water decontamination process comprising contacting water containing anionic contaminants with an enhanced coagulant to form an enhanced floc, which more efficiently binds anionic species (e. g. , arsenate, arsenite, chromate, fluoride, selenate, and borate, and combinations thereof) predominantly through the formation of surface complexes. The enhanced coagulant comprises a trivalent metal cation coagulant (e. g. , ferric chloride or aluminum sulfate) mixed with a divalent metal cation modifier (e. g. , copper sulfate or zinc sulfate).

Inorganic Ion Sorbent Method
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US Patent:

7244359, Jul 17, 2007
Filed:

Sep 30, 2004
Appl. No.:

10/955292
Inventors:

David M. Teter - Edgewood NM, US
Patrick V. Brady - Albuquerque NM, US
James L. Krumhansl - Albuquerque NM, US
Assignee:

Sandia Corporation - Albuquerque NM
International Classification:

C02F 1/28
US Classification:

210683, 210684, 210911, 210913
Abstract:

A process and medium for decontamination of water containing anionic species including arsenic and chromium, wherein compounds comprising divalent and trivalent metal oxides and sulfides are used to form surface complexes with contaminants under pH conditions within the range of potable water. In one embodiment natural and synthetic spinels and spinel-like materials are used as the sorbent substance.

Cask Weeping Mitigation
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US Patent:

7271310, Sep 18, 2007
Filed:

Feb 12, 2003
Appl. No.:

10/366225
Inventors:

James L. Krumhansl - Albuquerque NM, US
Patrick V. Brady - Albuquerque NM, US
David M. Teter - Edgewood NM, US
Paul McConnell - Albuquerque NM, US
Assignee:

Sandia Corporation - Albuquerque NM
International Classification:

G21F 9/14
US Classification:

588 18
Abstract:

A method (and concomitant kit) for treating a surface to reduce subsequent Cs nuclide desorption comprising contacting the surface with a first cation-containing solution, the cation being one or more of Cs, Rb, Ag, Tl, K, and NH, and contacting the surface with a second cation-containing solution, the cation being one or more of Cs, Rb, Ag, Tl, K, and NH, thereby reducing amounts of radioactive cesium embedded in clays found on the surface.

In-Tank Recirculating Arsenic Treatment System
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US Patent:

7514004, Apr 7, 2009
Filed:

May 1, 2008
Appl. No.:

12/113354
Inventors:

Patrick V. Brady - Albuquerque NM, US
Brian P. Dwyer - Albuquerque NM, US
James L. Krumhansl - Albuquerque NM, US
Joseph D. Chwirka - Tijeras NM, US
Assignee:

Sandia Corporation - Albuquerque NM
International Classification:

C02F 1/42
US Classification:

210688, 210196, 210263
Abstract:

A low-cost, water treatment system and method for reducing arsenic contamination in small community water storage tanks. Arsenic is removed by using a submersible pump, sitting at the bottom of the tank, which continuously recirculates (at a low flow rate) arsenic-contaminated water through an attached and enclosed filter bed containing arsenic-sorbing media. The pump and treatment column can be either placed inside the tank (In-Tank) by manually-lowering through an access hole, or attached to the outside of the tank (Out-of-Tank), for easy replacement of the sorption media.

Low Sintering Temperature Glass Waste Forms For Sequestering Radioactive Iodine
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US Patent:

8262950, Sep 11, 2012
Filed:

Mar 19, 2010
Appl. No.:

12/727353
Inventors:

Tina M. Nenoff - Sandia Park NM, US
James L. Krumhansl - Albuquerque NM, US
Terry J. Garino - Albuquerque NM, US
Nathan W. Ockwig - Spicer NM, US
Assignee:

Sandia Corporation - Albuquerque NM
International Classification:

C09K 11/04
C09K 3/00
G21F 9/00
US Classification:

252625, 252517, 252634, 40512865, 4051292, 423249, 588 14, 588 15, 588 16, 588 20, 976DIG 385, 976DIG 392
Abstract:

Materials and methods of making low-sintering-temperature glass waste forms that sequester radioactive iodine in a strong and durable structure. First, the iodine is captured by an adsorbant, which forms an iodine-loaded material, e. g. , AgI, AgI-zeolite, AgI-mordenite, Ag-silica aerogel, ZnI, CuI, or BiOI. Next, particles of the iodine-loaded material are mixed with powdered frits of low-sintering-temperature glasses (comprising various oxides of Si, B, Bi, Pb, and Zn), and then sintered at a relatively low temperature, ranging from 425 C. to 550 C. The sintering converts the mixed powders into a solid block of a glassy waste form, having low iodine leaching rates. The vitrified glassy waste form can contain as much as 60 wt % AgI. A preferred glass, having a sintering temperature of 500 C. (below the silver iodide sublimation temperature of 500 C.