Method of treating waste water
Abstract
A process of treating water to remove metal ion contaminants contained therein, said metal ion contaminants selected from the group consisting of metals in Groups 8, 1b, 2b, 4a, 5a, or 6a of the periodic table, lanthanide metals, and actinide metals including transuranic element metals, by adjusting the pH of a metal ion contaminant-containing water source to within the range of about 6.5 to about 14.0, admixing the water source with a mixture of an alkali or alkaline earth ferrate and a water soluble salt, e.g., a zirconium salt, in an amount sufficient to form a precipitate within the water source, the amount the mixture of ferrate and water soluble salt effective to reduce the metal ion contaminant concentration in the water source, permitting the precipitate in the admixture to separate and thereby yield a supernatant liquid having a reduced metal ion contaminant concentration, and separating the supernatant liquid having the reduced metal ion contaminant concentration from the admixture is provided. A composition of matter including an alkali or alkaline earth ferrate and a water soluble salt, e.g., a zirconium salt, is also provided.
- Inventors:
-
- Colorado Springs, CO
- Issue Date:
- Research Org.:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- OSTI Identifier:
- 869698
- Patent Number(s):
- 5380443
- Assignee:
- Regents of University of California (Oakland, CA)
- Patent Classifications (CPCs):
-
C - CHEMISTRY C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE C02F - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
G - PHYSICS G21 - NUCLEAR PHYSICS G21F - PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT
- DOE Contract Number:
- W-7405-ENG-36
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- method; treating; waste; water; process; remove; metal; contaminants; contained; therein; selected; consisting; metals; 1b; 2b; 4a; 5a; 6a; periodic; table; lanthanide; actinide; including; transuranic; element; adjusting; ph; contaminant-containing; source; range; 14; admixing; mixture; alkali; alkaline; earth; ferrate; soluble; salt; zirconium; amount; sufficient; form; precipitate; effective; reduce; contaminant; concentration; permitting; admixture; separate; yield; supernatant; liquid; reduced; separating; provided; composition; matter; reduced metal; transuranic element; remove metal; supernatant liquid; water source; water soluble; waste water; alkaline earth; contained therein; amount sufficient; periodic table; soluble salt; containing water; actinide metals; actinide metal; treating waste; lanthanide metals; treating water; matter including; metals including; lanthanide metal; contaminants contained; /210/423/
Citation Formats
Deininger, James P, and Chatfield, Linda K. Method of treating waste water. United States: N. p., 1995.
Web.
Deininger, James P, & Chatfield, Linda K. Method of treating waste water. United States.
Deininger, James P, and Chatfield, Linda K. Sun .
"Method of treating waste water". United States. https://www.osti.gov/servlets/purl/869698.
@article{osti_869698,
title = {Method of treating waste water},
author = {Deininger, James P and Chatfield, Linda K},
abstractNote = {A process of treating water to remove metal ion contaminants contained therein, said metal ion contaminants selected from the group consisting of metals in Groups 8, 1b, 2b, 4a, 5a, or 6a of the periodic table, lanthanide metals, and actinide metals including transuranic element metals, by adjusting the pH of a metal ion contaminant-containing water source to within the range of about 6.5 to about 14.0, admixing the water source with a mixture of an alkali or alkaline earth ferrate and a water soluble salt, e.g., a zirconium salt, in an amount sufficient to form a precipitate within the water source, the amount the mixture of ferrate and water soluble salt effective to reduce the metal ion contaminant concentration in the water source, permitting the precipitate in the admixture to separate and thereby yield a supernatant liquid having a reduced metal ion contaminant concentration, and separating the supernatant liquid having the reduced metal ion contaminant concentration from the admixture is provided. A composition of matter including an alkali or alkaline earth ferrate and a water soluble salt, e.g., a zirconium salt, is also provided.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1995},
month = {1}
}
Works referenced in this record:
Feasibility of Wastewater Treatment with Ferrate
journal, December 1979
- Waite, Thomas D.
- Journal of the Environmental Engineering Division, Vol. 105, Issue 6
Experiments utilizing FeO42− for purifying water
journal, August 1974
- Murmann, R. Kent; Robinson, Paul R.
- Water Research, Vol. 8, Issue 8