Delisting of Metcolite C Media as Hazardous Waste and Recycling the Spent Media

DEPOT MAINTENANCE PROJCET as of 940923

Type: E
Accession Number: 8963
Code: Completed

Narrative:

PHASE 1 - Historically all blast media has been disposed of as a hazardous waste at NAVAVNCLASS: DEPOT JAX. Based upon knowledge of the process, there was reasonable cause to suspect that the blasting operation involving this particular media would not yield a hazardous waste. Several 55 gallon drums of spent blast media were tested. Concentrations of the EP toxic metals fell well below the limits in every drum. As a result of the testing, this spent media was reclassified as an industrial waste. The production shop has been warned to keep this media segregated from all other spent media. The spent media will be periodically tested to insure that it has remained non-hazardous. PHASE 2 - A brief study of the spent Metcolite C showed that approximately 50% of the media was still within the grit size requirements of the specification. It is therefore possible that this media may be recyclable. Before a reclassification process can be set up, however, it will be necessary to run physical tests on panels blasted with this media. This blast media is used to prepare metal surfaces for plasma spray coatings. The applications are critical and media contaminated with fines, grease, or dirt could cause catatrosphic adhesion failures. If it is determined that this material can be recycled equipment to classify the media will be purchased. It has also been proposed that the fines from this operation may fall in the range of 220 grit aluminum oxide which is used in other blasting operations at this facility.

Funding: NAVAVNCLASS: DEPOT JAX Navy Industrial Funds (NIF)
Application/Source: Solid Waste, Spent Blast Media
Pollutant Category: Hazardous Waste Number: D006
Governing Regs/Laws: RCRA Section 3002(b), 40 CFR 262, Secretary of Defense, DASD(I), Memo of 5 July 1985 in full compliance with regulatory requirements governing control of this wastestream. Wastestream generation reduction efforts are at the 10% level; expect completion during FY89. Anticipate 25-50% reduction in this wastestream.

Status:

Feb 90 Project was successful. Completed.

Implementation Date: May 88
Initial Submission Date: 1988-12-05
Lead Service: Navy
Key Words: Delisting, Recycling, Spent Media, HAZMIN, Metcolite C,
Point of Contact - Name: Everlene Johnson
Point of Contact - Organization: NADEP Jacksonville, Code 342
Point of Contact - Phone: AV 942-2457/COM (904)772-2457