NOVEL PERVAPORATION SYSTEM FOR RECOVERY OF ORGANICS FROM HAZARDOUS WASTE STREAMS
Small Business Information
Bend Research, Inc.
64550 Research, Inc., Bend, OR, 97701
Dr. Rod Ray
Mr. Kelly L. Smith
AbstractThe U.S. chemical industry accounts for over 200 million tons/year of hazardousliquid waste containing organic chemicals. These waste streams are difficult totreat using conventional technologies such as carbon adsorption and steamstripping. Membrane processes--particularly pervaporation--offer energy and costadvantages over conventional techniques. However, current pervaporationmembrane-module designs limit the driving force for organic removal, modulematerials are damaged by the organics, and module costs are high.Bend Research is now pursuing development of a novel pervaporation module designfor this application. A key component is a solvent-resistant pervaporationmodule that overcomes the drawbacks of current pervaporation modules. This low-cost module is the kof dischargeable water while economically recovering a concentrated organicstream for further separation or direct re-use. Preliminary tests and modelingindicate that this system has operating advantages that will make it cost-effective for treatment ofThe Phase I goal is to demonstrate the feasibility of their approach by makingand testing small-scale hollow-fiver pervaporation modules based on solvent-resistant materials. Thin the new system design, identifying the operating conditions and parametersthat maximize performance.
* information listed above is at the time of submission.