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Title: Removal of metal ions from aqueous solution

Abstract

A method is disclosed 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 heavy metals from solution. This also results in the removal of the metals from the column in a concentrated form. 1 fig.

Inventors:
; ; ; ;
Publication Date:
OSTI Identifier:
7073785
Patent Number(s):
US 4969995; A
Application Number:
PPN: US 7-451860
Assignee:
Dept. of Energy, Washington, DC (United States)
Resource Type:
Patent
Resource Relation:
Patent File Date: 18 Dec 1989
Country of Publication:
United States
Language:
English
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; METALS; MATERIALS RECOVERY; POLYPEPTIDES; SOLVENT PROPERTIES; TECHNOLOGY ASSESSMENT; ELEMENTS; MANAGEMENT; ORGANIC COMPOUNDS; PEPTIDES; PROCESSING; PROTEINS; WASTE MANAGEMENT; WASTE PROCESSING; 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., 1990. 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. Tue . "Removal of metal ions from aqueous solution". United States.
@article{osti_7073785,
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 is disclosed 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 heavy metals from solution. This also results in the removal of the metals from the column in a concentrated form. 1 fig.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1990},
month = {11}
}