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Title: Method for the removal of ultrafine particulates from an aqueous suspension

Abstract

A method of separating ultra-fine particulates from an aqueous suspension such as a process stream or a waste stream. The method involves the addition of alkali silicate and an organic gelling agent to a volume of liquid, from the respective process or waste stream, to form a gel. The gel then undergoes syneresis to remove water and soluble salts from the gel containing the particulates, thus, forming a silica monolith. The silica monolith is then sintered to form a hard, nonporous waste form.

Inventors:
 [1];  [2];  [3]
  1. (Naperville, IL)
  2. (Bolingbrook, IL)
  3. (Corning, NY)
Issue Date:
Research Org.:
Argonne National Laboratory (ANL), Argonne, IL
OSTI Identifier:
873406
Patent Number(s):
6153103
Assignee:
United States of America as represented by United States (Washington, DC) ANL
DOE Contract Number:  
W-31109-ENG-38
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
method; removal; ultrafine; particulates; aqueous; suspension; separating; ultra-fine; process; stream; waste; involves; addition; alkali; silicate; organic; gelling; agent; volume; liquid; respective; form; undergoes; syneresis; remove; water; soluble; salts; containing; forming; silica; monolith; sintered; hard; nonporous; soluble salts; aqueous suspension; fine particulate; waste form; waste stream; process stream; method involves; remove water; soluble salt; method involve; move water; /210/502/588/

Citation Formats

Chaiko, David J., Kopasz, John P., and Ellison, Adam J. G. Method for the removal of ultrafine particulates from an aqueous suspension. United States: N. p., 2000. Web.
Chaiko, David J., Kopasz, John P., & Ellison, Adam J. G. Method for the removal of ultrafine particulates from an aqueous suspension. United States.
Chaiko, David J., Kopasz, John P., and Ellison, Adam J. G. Sat . "Method for the removal of ultrafine particulates from an aqueous suspension". United States. https://www.osti.gov/servlets/purl/873406.
@article{osti_873406,
title = {Method for the removal of ultrafine particulates from an aqueous suspension},
author = {Chaiko, David J. and Kopasz, John P. and Ellison, Adam J. G.},
abstractNote = {A method of separating ultra-fine particulates from an aqueous suspension such as a process stream or a waste stream. The method involves the addition of alkali silicate and an organic gelling agent to a volume of liquid, from the respective process or waste stream, to form a gel. The gel then undergoes syneresis to remove water and soluble salts from the gel containing the particulates, thus, forming a silica monolith. The silica monolith is then sintered to form a hard, nonporous waste form.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2000},
month = {1}
}

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