Removal of metal ions from aqueous solution
Abstract
A method of removing heavy metals from aqueous solution, a composition of matter used in effecting said removal, and apparatus used in effecting said removal. One or more of the polypeptides, poly (.gamma.-glutamylcysteinyl)glycines, is immobilized on an inert material in particulate form. Upon contact with an aqueous solution containing heavy metals, the polypeptides sequester the metals, removing them from the solution. There is selectivity of poly (.gamma.-glutamylcysteinyl)glycines having a particular number of monomer repeat unit for particular metals. The polypeptides are easily regenerated by contact with a small amount of an organic acid, so that they can be used again to remove heayv metals from solution. This also results in the removal of the metals from the column in a concentrated form.
- Inventors:
-
- both Los Alamos, NM
- Durham, GB2
- Los Alamos, NM
- Seattle, WA
- Issue Date:
- Research Org.:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- OSTI Identifier:
- 867600
- Patent Number(s):
- 4969995
- Application Number:
- 07/451,860
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY
C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01G - COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- removal; metal; aqueous; solution; method; removing; heavy; metals; composition; matter; effecting; apparatus; polypeptides; poly; gamma; -glutamylcysteinyl; glycines; immobilized; inert; material; particulate; form; contact; containing; sequester; selectivity; particular; monomer; repeat; unit; easily; regenerated; amount; organic; acid; remove; heayv; results; column; concentrated; monomer repeat; inert material; heavy metal; solution containing; aqueous solution; particulate form; heavy metals; removing heavy; organic acid; repeat unit; polypeptides sequester; particular metals; concentrated form; containing heavy; easily regenerated; /210/502/
Citation Formats
Jackson, Paul J, Delhaize, Emmanuel, Robinson, Nigel J, Unkefer, Clifford J, and Furlong, Clement. Removal of metal ions from aqueous solution. United States: N. p., 1990.
Web.
Jackson, Paul J, Delhaize, Emmanuel, Robinson, Nigel J, Unkefer, Clifford J, & Furlong, Clement. Removal of metal ions from aqueous solution. United States.
Jackson, Paul J, Delhaize, Emmanuel, Robinson, Nigel J, Unkefer, Clifford J, and Furlong, Clement. Tue .
"Removal of metal ions from aqueous solution". United States. https://www.osti.gov/servlets/purl/867600.
@article{osti_867600,
title = {Removal of metal ions from aqueous solution},
author = {Jackson, Paul J and Delhaize, Emmanuel and Robinson, Nigel J and Unkefer, Clifford J and Furlong, Clement},
abstractNote = {A method of removing heavy metals from aqueous solution, a composition of matter used in effecting said removal, and apparatus used in effecting said removal. One or more of the polypeptides, poly (.gamma.-glutamylcysteinyl)glycines, is immobilized on an inert material in particulate form. Upon contact with an aqueous solution containing heavy metals, the polypeptides sequester the metals, removing them from the solution. There is selectivity of poly (.gamma.-glutamylcysteinyl)glycines having a particular number of monomer repeat unit for particular metals. The polypeptides are easily regenerated by contact with a small amount of an organic acid, so that they can be used again to remove heayv metals from solution. This also results in the removal of the metals from the column in a concentrated form.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Nov 13 00:00:00 EST 1990},
month = {Tue Nov 13 00:00:00 EST 1990}
}