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Sorption of Arsenic from Drinking Water to Mg(OH)2 Sorrel's Cements, and Zirconium Doped Materials

Description: It was discovered that MgO or Mg(OH){sub 2} when it reacts with water is a very strong sorbent for arsenic. Distribution constants, or K{sub d} values, are as high as 1 x 10{sup 6} L/mole. In this work, Mg(OH){sub 2} and other compounds have been investigated as sorbents for arsenic and other contaminants. This work has resulted in several major accomplishments including: (1) design, construction, and testing of a pressure sand filter to remove Mg(OH){sub 2} after it has sorbed arsenic from wat… more
Date: November 1, 2002
Creator: MOORE, ROBERT C.; ZHAO, HONGTING; SANCHEZ, CHARLES ANTHONY; HOLT, KATHLEEN C.; SALAS, FRED; HASAN, AHMED ALI MOHAMED et al.
Partner: UNT Libraries Government Documents Department
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Containment of uranium in the proposed Egyptian geologic repository for radioactive waste using hydroxyapatite.

Description: Currently, the Egyptian Atomic Energy Authority is designing a shallow-land disposal facility for low-level radioactive waste. To insure containment and prevent migration of radionuclides from the site, the use of a reactive backfill material is being considered. One material under consideration is hydroxyapatite, Ca{sub 10}(PO{sub 4}){sub 6}(OH){sub 2}, which has a high affinity for the sorption of many radionuclides. Hydroxyapatite has many properties that make it an ideal material for use as… more
Date: April 1, 2004
Creator: Moore, Robert Charles; Hasan, Ahmed Ali Mohamed; Headley, Thomas Jeffrey; Sanchez, Charles Anthony (University of Arizona, Yuma, AZ); Zhao, Hongting; Salas, Fred Manuel et al.
Partner: UNT Libraries Government Documents Department
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