skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Compositions containing poly ([gamma]glutamylcysteinyl)glycines

Abstract

A method of removing heavy metals from aqueous solution, a composition of matter used in effecting the removal, and the apparatus used in effecting the removal are described. 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. 1 figs.

Inventors:
; ; ; ;
Publication Date:
OSTI Identifier:
7207234
Patent Number(s):
US 5089470; A
Application Number:
PPN: US 7-452013
Assignee:
Dept. of Energy, Washington, DC (United States)
DOE Contract Number:  
W-7405-ENG-36
Resource Type:
Patent
Resource Relation:
Patent File Date: 18 Dec 1989
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; EXTRACTION APPARATUSES; DESIGN; GLYCINE; CHEMICAL REACTIONS; METALS; MATERIALS RECOVERY; WATER RECLAMATION; AMINO ACIDS; CARBOXYLIC ACIDS; ELEMENTS; MANAGEMENT; ORGANIC ACIDS; ORGANIC COMPOUNDS; PROCESSING; SEPARATION EQUIPMENT; WASTE MANAGEMENT; WASTE PROCESSING; 540220* - Environment, Terrestrial- Chemicals Monitoring & Transport- (1990-); 540320 - Environment, Aquatic- Chemicals Monitoring & Transport- (1990-); 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. Compositions containing poly ([gamma]glutamylcysteinyl)glycines. United States: N. p., 1992. Web.
Jackson, P J, Delhaize, E, Robinson, N J, Unkefer, C J, & Furlong, C. Compositions containing poly ([gamma]glutamylcysteinyl)glycines. United States.
Jackson, P J, Delhaize, E, Robinson, N J, Unkefer, C J, and Furlong, C. Tue . "Compositions containing poly ([gamma]glutamylcysteinyl)glycines". United States.
@article{osti_7207234,
title = {Compositions containing poly ([gamma]glutamylcysteinyl)glycines},
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 the removal, and the apparatus used in effecting the removal are described. 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. 1 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1992},
month = {2}
}