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Title: 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 units 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 heavy metals from solution. This also results in the removal of the metals from the column in a concentrated form.

Inventors:
; ; ; ;
Publication Date:
Research Org.:
Los Alamos National Lab., NM (United States)
Sponsoring Org.:
USDOE; USDOE, Washington, DC (United States)
OSTI Identifier:
5414858
Patent Number(s):
PATENTS-US-A7237263
Application Number:
ON: DE91017334; PPN: US 7-237263
Assignee:
Dept. of Energy
DOE Contract Number:  
W-7405-ENG-36
Resource Type:
Patent Application
Country of Publication:
United States
Language:
English
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; AQUEOUS SOLUTIONS; WASTE PROCESSING; CADMIUM; REMOVAL; COPPER; INVENTIONS; ORGANIC ACIDS; POLYPEPTIDES; REGENERATION; DISPERSIONS; ELEMENTS; MANAGEMENT; METALS; MIXTURES; ORGANIC COMPOUNDS; PEPTIDES; PROCESSING; PROTEINS; SOLUTIONS; TRANSITION ELEMENTS; WASTE MANAGEMENT; 320305* - Energy Conservation, Consumption, & Utilization- Industrial & Agricultural Processes- Industrial Waste Management

Citation Formats

Jackson, P J, Delhaize, E, Robinson, N J, Unkefer, C J, and Furlong, C. Removal of metal ions from aqueous solution. United States: N. p., 1988. Web.
Jackson, P J, Delhaize, E, Robinson, N J, Unkefer, C J, & Furlong, C. Removal of metal ions from aqueous solution. United States.
Jackson, P J, Delhaize, E, Robinson, N J, Unkefer, C J, and Furlong, C. Fri . "Removal of metal ions from aqueous solution". United States.
@article{osti_5414858,
title = {Removal of metal ions from aqueous solution},
author = {Jackson, P J and Delhaize, E and Robinson, N J and Unkefer, C J and Furlong, C},
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 units 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 heavy 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 = {1988},
month = {8}
}