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Title: Thermal and chemical remediation of mixed wastes

Abstract

A process for treating organic waste materials without venting gaseous emissions to the atmosphere which includes oxidizing the organic waste materials at an elevated temperature not less than about 500.degree. C. with a gas having an oxygen content in the range of from about 20% to about 70% to produce an oxidation product containing CO.sub.2 gas. The gas is then filtered to remove particulates, and then contacted with an aqueous absorbent solution of alkali metal carbonates or alkanolamines to absorb a portion of the CO.sub.2 gas from the particulate-free oxidation product. The CO.sub.2 absorbent is thereafter separated for further processing. A process and system are also disclosed in which the waste materials are contacted with a reactive medium such as lime and product treatment as described.

Inventors:
 [1];  [2]
  1. Wheaton, IL
  2. Downers Grove, IL
Issue Date:
Research Org.:
Argonne National Laboratory (ANL), Argonne, IL
OSTI Identifier:
871273
Patent Number(s):
5697307
Assignee:
University of Chicago (Chicago, IL)
DOE Contract Number:  
W-31109-ENG-38
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
thermal; chemical; remediation; mixed; wastes; process; treating; organic; waste; materials; venting; gaseous; emissions; atmosphere; oxidizing; elevated; temperature; 500; degree; gas; oxygen; content; range; 20; 70; produce; oxidation; product; containing; filtered; remove; particulates; contacted; aqueous; absorbent; solution; alkali; metal; carbonates; alkanolamines; absorb; portion; particulate-free; thereafter; separated; processing; disclosed; reactive; medium; lime; treatment; described; metal carbonates; absorbent solution; mixed waste; mixed wastes; oxygen content; waste material; alkali metal; elevated temperature; waste materials; organic waste; product containing; active medium; metal carbonate; oxidation product; metal carbon; gaseous emissions; chemical remediation; venting gas; venting gaseous; treating organic; remove particulate; aqueous absorbent; duct containing; /110/

Citation Formats

Nelson, Paul A, and Swift, William M. Thermal and chemical remediation of mixed wastes. United States: N. p., 1997. Web.
Nelson, Paul A, & Swift, William M. Thermal and chemical remediation of mixed wastes. United States.
Nelson, Paul A, and Swift, William M. Wed . "Thermal and chemical remediation of mixed wastes". United States. https://www.osti.gov/servlets/purl/871273.
@article{osti_871273,
title = {Thermal and chemical remediation of mixed wastes},
author = {Nelson, Paul A and Swift, William M},
abstractNote = {A process for treating organic waste materials without venting gaseous emissions to the atmosphere which includes oxidizing the organic waste materials at an elevated temperature not less than about 500.degree. C. with a gas having an oxygen content in the range of from about 20% to about 70% to produce an oxidation product containing CO.sub.2 gas. The gas is then filtered to remove particulates, and then contacted with an aqueous absorbent solution of alkali metal carbonates or alkanolamines to absorb a portion of the CO.sub.2 gas from the particulate-free oxidation product. The CO.sub.2 absorbent is thereafter separated for further processing. A process and system are also disclosed in which the waste materials are contacted with a reactive medium such as lime and product treatment as described.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1997},
month = {1}
}

Patent:

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