skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Use of MgO doped with a divalent or trivalent metal cation for removing arsenic from water

Abstract

Systems and methods for use of magnesium hydroxide, either directly or through one or more precursors, doped with a divalent or trivalent metal cation, for removing arsenic from drinking water, including water distribution systems. In one embodiment, magnesium hydroxide, Mg(OH).sub.2 (a strong adsorbent for arsenic) doped with a divalent or trivalent metal cation is used to adsorb arsenic. The complex consisting of arsenic adsorbed on Mg(OH).sub.2 doped with a divalent or trivalent metal cation is subsequently removed from the water by conventional means, including filtration, settling, skimming, vortexing, centrifugation, magnetic separation, or other well-known separation systems. In another embodiment, magnesium oxide, MgO, is employed, which reacts with water to form Mg(OH).sub.2. The resulting Mg(OH).sub.2 doped with a divalent or trivalent metal cation, then adsorbs arsenic, as set forth above. The method can also be used to treat human or animal poisoning with arsenic.

Inventors:
; ;
Publication Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1360966
Patent Number(s):
9,663,389
Application Number:
13/964,424
Assignee:
Sandia Corporation SNL-A
DOE Contract Number:
AC04-94AL85000
Resource Type:
Patent
Resource Relation:
Patent File Date: 2013 Aug 12
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Moore, Robert C., Larese, Kathleen Caroline, and Bontchev, Ranko Panayotov. Use of MgO doped with a divalent or trivalent metal cation for removing arsenic from water. United States: N. p., 2017. Web.
Moore, Robert C., Larese, Kathleen Caroline, & Bontchev, Ranko Panayotov. Use of MgO doped with a divalent or trivalent metal cation for removing arsenic from water. United States.
Moore, Robert C., Larese, Kathleen Caroline, and Bontchev, Ranko Panayotov. Tue . "Use of MgO doped with a divalent or trivalent metal cation for removing arsenic from water". United States. doi:. https://www.osti.gov/servlets/purl/1360966.
@article{osti_1360966,
title = {Use of MgO doped with a divalent or trivalent metal cation for removing arsenic from water},
author = {Moore, Robert C. and Larese, Kathleen Caroline and Bontchev, Ranko Panayotov},
abstractNote = {Systems and methods for use of magnesium hydroxide, either directly or through one or more precursors, doped with a divalent or trivalent metal cation, for removing arsenic from drinking water, including water distribution systems. In one embodiment, magnesium hydroxide, Mg(OH).sub.2 (a strong adsorbent for arsenic) doped with a divalent or trivalent metal cation is used to adsorb arsenic. The complex consisting of arsenic adsorbed on Mg(OH).sub.2 doped with a divalent or trivalent metal cation is subsequently removed from the water by conventional means, including filtration, settling, skimming, vortexing, centrifugation, magnetic separation, or other well-known separation systems. In another embodiment, magnesium oxide, MgO, is employed, which reacts with water to form Mg(OH).sub.2. The resulting Mg(OH).sub.2 doped with a divalent or trivalent metal cation, then adsorbs arsenic, as set forth above. The method can also be used to treat human or animal poisoning with arsenic.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue May 30 00:00:00 EDT 2017},
month = {Tue May 30 00:00:00 EDT 2017}
}

Patent:

Save / Share: