Arsenic removal in conjunction with lime softening
Abstract
A method for removing dissolved arsenic from an aqueous medium comprising adding lime to the aqueous medium, and adding one or more sources of divalent metal ions other than calcium and magnesium to the aqueous medium, whereby dissolved arsenic in the aqueous medium is reduced to a lower level than possible if only the step of adding lime were performed. Also a composition of matter for removing dissolved arsenic from an aqueous medium comprising lime and one or more sources of divalent copper and/or zinc metal ions.
- Inventors:
- Issue Date:
- Research Org.:
- Sandia National Lab. (SNL-CA), Livermore, CA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1175067
- Patent Number(s):
- 6802980
- Application Number:
- 10/231,967
- 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
- DOE Contract Number:
- AC04-94AL85000
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
Citation Formats
Khandaker, Nadim R., Brady, Patrick V., Teter, David M., and Krumhansl, James L. Arsenic removal in conjunction with lime softening. United States: N. p., 2004.
Web.
Khandaker, Nadim R., Brady, Patrick V., Teter, David M., & Krumhansl, James L. Arsenic removal in conjunction with lime softening. United States.
Khandaker, Nadim R., Brady, Patrick V., Teter, David M., and Krumhansl, James L. Tue .
"Arsenic removal in conjunction with lime softening". United States. https://www.osti.gov/servlets/purl/1175067.
@article{osti_1175067,
title = {Arsenic removal in conjunction with lime softening},
author = {Khandaker, Nadim R. and Brady, Patrick V. and Teter, David M. and Krumhansl, James L.},
abstractNote = {A method for removing dissolved arsenic from an aqueous medium comprising adding lime to the aqueous medium, and adding one or more sources of divalent metal ions other than calcium and magnesium to the aqueous medium, whereby dissolved arsenic in the aqueous medium is reduced to a lower level than possible if only the step of adding lime were performed. Also a composition of matter for removing dissolved arsenic from an aqueous medium comprising lime and one or more sources of divalent copper and/or zinc metal ions.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Oct 12 00:00:00 EDT 2004},
month = {Tue Oct 12 00:00:00 EDT 2004}
}
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Works referenced in this record:
Arsenic Removal during Precipitative Softening
journal, May 1997
- McNeill, Laurie S.; Edwards, Marc
- Journal of Environmental Engineering, Vol. 123, Issue 5