Apparatus and method for extraction of chemicals from aquifer remediation effluent water

US6402952B2 · kind B2 · utility

Assignee

• Bechtel BWXT Idaho, LLC · US

Inventors

• Ryan D. McMurtrey · Idaho Falls, US
• Daniel M. Ginosar · Idaho Falls, US
• Kenneth S. Moor · Idaho Falls, US
• G. Michael Shook · Rigby, US
• John M. Moses · Mitchell, CA
• Donna L. Barker · Idaho Falls, US

Key dates

• Filing date: Mar 29, 2001
• Grant date: Jun 11, 2002
• Expiry date: Mar 29, 2021

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C02F2103/06
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

An apparatus and method for extraction of chemicals from an aquifer remediation aqueous effluent are provided. The extraction method utilizes a critical fluid for separation and recovery of chemicals employed in remediating aquifers contaminated with hazardous organic substances, and is particularly suited for separation and recovery of organic contaminants and process chemicals used in surfactant-based remediation technologies. The extraction method separates and recovers high-value chemicals from the remediation effluent and minimizes the volume of generated hazardous waste. The recovered chemicals can be recycled to the remediation process or stored for later use.