Remediation of Paint Blast Waste

DEPOT MAINTENANCE PROJECT as of 940923

Type: EACCESSION_NUMBER: 57548
Code: Active

Narrative:

Westinghouse Electric Corp. has developed a soil remediation process based on mineral treatment technologies. The multiple step process utilizes a combination of size separation and washing with a leach solution. The process has been used to successfully treat contaminated sand blast wastes generated in paint removal from transportation structures. The process requires a distribution of the particle sizes and densities between the soil and waste species for effective treatment. Sand blasting of transportation structures is generally a once through process. The resulting sand blast waste retains a particle size compatible with the Westinghouse process. However, abrasive blasting at Army depots generally use a classification and recirculation system which permits multiple reuse of the media. The resulting blast media. The resulting blast media waste is often a very fine dust.

Pollutant Category: GOVERNING REG/LAWS:

Status:

- The process has been successfully demonstrated for the treatment for some categories of sand blast waste. A preliminary laboratory investigation is underway to determine the suitability of this process for glass bead and plastic media wastes generated at Army depots. The results are not yet available.
- The Westinghouse soil remediation process shows promise for the treatment of sand blast wastes. Depending on the success of the preliminary laboratory investigation, additional laboratory investigation or pilor level demonstration of this technology may be considered. The most likely candidates for this technology are sand and slag blast media wastes.
- Aug 94CERL has this project on hold.

Initial Submission Date: 1994-01-28
Update Submission Date: 1994-08-09
Lead Service: Army
Key Words: Remediation, PMB
Point of Contact - Name: Dennis Reed
Point of Contact - Organization: HQ DESCOM/AMSDS-IN-E
Point of Contact - Phone: DSN 570-9427