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Title: Thermal and chemical remediation of mixed waste

Abstract

A process and system for treating organic waste materials without venting gaseous emissions to the atmosphere. A fluidized bed including lime particles is operated at a temperature of at least 500.degree. C. by blowing gas having 20%/70% oxygen upwardly through the bed particles at a rate sufficient to fluidize same. A toxic organic waste material is fed into the fluidized bed where the organic waste material reacts with the lime forming CaCO.sub.3. The off gases are filtered and cooled to condense water which is separated. A portion of the calcium carbonate formed during operation of the fluidized bed is replaced with lime particles. The off gases from the fluidized bed after drying are recirculated until the toxic organic waste material in the bed is destroyed.

Inventors:
 [1];  [2]
  1. (Wheaton, IL)
  2. (Downers Grove, IL)
Issue Date:
Research Org.:
Argonne National Laboratory (ANL), Argonne, IL
OSTI Identifier:
869433
Patent Number(s):
5335609
Assignee:
University of Chicago (Chicago, IL) ANL
DOE Contract Number:  
W-31109-ENG-38
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
thermal; chemical; remediation; mixed; waste; process; treating; organic; materials; venting; gaseous; emissions; atmosphere; fluidized; bed; including; lime; particles; operated; temperature; 500; degree; blowing; gas; 20; 70; oxygen; upwardly; rate; sufficient; fluidize; toxic; material; fed; reacts; forming; caco; gases; filtered; cooled; condense; water; separated; portion; calcium; carbonate; formed; operation; replaced; drying; recirculated; destroyed; rate sufficient; bed particles; mixed waste; waste material; fluidized bed; waste materials; calcium carbonate; organic waste; toxic organic; gaseous emissions; chemical remediation; venting gas; venting gaseous; treating organic; /110/422/

Citation Formats

Nelson, Paul A., and Swift, William M. Thermal and chemical remediation of mixed waste. United States: N. p., 1994. Web.
Nelson, Paul A., & Swift, William M. Thermal and chemical remediation of mixed waste. United States.
Nelson, Paul A., and Swift, William M. Sat . "Thermal and chemical remediation of mixed waste". United States. https://www.osti.gov/servlets/purl/869433.
@article{osti_869433,
title = {Thermal and chemical remediation of mixed waste},
author = {Nelson, Paul A. and Swift, William M.},
abstractNote = {A process and system for treating organic waste materials without venting gaseous emissions to the atmosphere. A fluidized bed including lime particles is operated at a temperature of at least 500.degree. C. by blowing gas having 20%/70% oxygen upwardly through the bed particles at a rate sufficient to fluidize same. A toxic organic waste material is fed into the fluidized bed where the organic waste material reacts with the lime forming CaCO.sub.3. The off gases are filtered and cooled to condense water which is separated. A portion of the calcium carbonate formed during operation of the fluidized bed is replaced with lime particles. The off gases from the fluidized bed after drying are recirculated until the toxic organic waste material in the bed is destroyed.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1994},
month = {1}
}

Patent:

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