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RECOVERY OF LIQUID HAZARDOUS WASTES FROM CARBON ADSORPTION STEAM REGENERATION…

Award Information

Agency:
Environmental Protection Agency 		Branch:
N/A 		Award ID:
14183 		Program Year/Program:
1991 / SBIR
Agency Tracking Number:
14183 		Solicitation Year:
N/A 		Solicitation Topic Code:
N/A 		Solicitation Number:
N/A
Small Business Information
Membrane Technology and Research, Inc.
1360 Willow Rd. Suite 103 Menlo Park, CA 94025-
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 2
Fiscal Year: 1991
Title: RECOVERY OF LIQUID HAZARDOUS WASTES FROM CARBON ADSORPTION STEAM REGENERATION STREAMS
Agency: EPA
Contract: N/A
Award Amount: $150,000.00
 

Abstract:

CARBON ADSORPTION IS A WIDELY USED TECHNIQUE TO REMOVE AND CONCENTRATE VOCS FROM DILUTED AIR AND WATER STREAMS. PERIODICALLY CARBON BEDS ARE REGENERATED WITH STEAM. THE RESULTS OF THIS REGENERATION AFTER COOLING, IS A CONCENTRATED MIXTURE OF HAZARDOUS COMPOUNDS AND WATER. COMMON AND PARTICULARLY TROUBLESOME STREAM CONDENSATES ARE THOSE CONTAINING MIXTURES OF CHLORINATED SOLVENTS AND WATER-MISCIBLE (HYDROPHILIC) SOLVENTS. THE PRESENCE OF THE CHLORINATED SOLVENTS MAKES SOLVENT RECLAMATION VERY DIFFICULT AND THE ENTIRE STREAM MUST BE TREATED AS A HAZARDOUS WASTE AND SENT TO INCINERATORS FITTED WITH APPROPRIATE SCRUBBERS FOR DISPOSAL. MEMBRANE TECHNOLOGY ANDRESEARCH, INC., PROPOSES TO DEVELOP A PERVAPORATION PROCESS TO SELECTIVELY REMOVE THE CHLORINATED SOLVENT FROM THE STREAM. RECLAMATION OF SOLVENTS FROM THESE TWO SEPARATE STREAMS IS THEN STRAIGHTFORWARD. THE PROCESS WILL BE DEMONSTRATED WITH ACETONE-METHYLENE CHLORIDE-WATER MIXTURES IN PHASE I. A SMALL BENCH-SCALE INTEGRATED SYSTEM WILL BE BUILT AND OPERATED IN PHASE II ON SOLVENT MIXTURES OF INCREASING COMPLEXITY. CARBON ADSORPTION IS A WIDELY USED TECHNIQUE TO REMOVE AND CONCENTRATE VOCS FROM DILUTED AIR AND WATER STREAMS. PERIODICALLY CARBON BEDS ARE REGENERATED WITH STEAM. THE RESULTS OF THIS REGENERATION AFTER COOLING, IS A CONCENTRATED MIXTURE OF HAZARDOUS COMPOUNDS AND WATER. COMMON AND PARTICULARLY TROUBLESOME STREAM CONDENSATES ARE THOSE CONTAINING MIXTURES OF CHLORINATED SOLVENTS AND WATER-MISCIBLE (HYDROPHILIC) SOLVENTS. THE PRESENCE OF THE CHLORINATED SOLVENTS MAKES SOLVENT RECLAMATION VERY DIFFICULT AND THE ENTIRE STREAM MUST BE TREATED AS A HAZARDOUS WASTE AND SENT TO INCINERATORS FITTED WITH APPROPRIATE SCRUBBERS FOR DISPOSAL. MEMBRANE TECHNOLOGY ANDRESEARCH, INC., PROPOSES TO DEVELOP A PERVAPORATION PROCESS TO SELECTIVELY REMOVE THE CHLORINATED SOLVENT FROM THE STREAM. RECLAMATION OF SOLVENTS FROM THESE TWO SEPARATE STREAMS IS THEN STRAIGHTFORWARD. THE PROCESS WILL BE DEMONSTRATED WITH ACETONE-METHYLENE CHLORIDE-WATER MIXTURES IN PHASE I. A SMALL BENCH-SCALE INTEGRATED SYSTEM WILL BE BUILT AND OPERATED IN PHASE II ON SOLVENT MIXTURES OF INCREASING COMPLEXITY.

Principal Investigator:

Dr J G Wijmans
0

Business Contact:

Small Business Information at Submission:

Membrane Technology & Research
1360 Willow Road Suite 103 Menlo Park, CA 94025

EIN/Tax ID:
DUNS: N/A
Number of Employees: N/A
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No