SEDL / STP / STP1240-EB / STP14124S

Critical Parameters and TCLP Performance of the RFP Microwave Solidification System

Eschen, VG
Technology Development/Waste Projects, EG&G Rocky Flats, Inc., Golden, CO

Fenner, GS
Technology Development/Waste Projects, EG&G Rocky Flats, Inc., Golden, CO

Splett, DM
Technology Development/Waste Projects, EG&G Rocky Flats, Inc., Golden, CO

Sprenger, GS
Technology Development/Waste Projects, EG&G Rocky Flats, Inc., Golden, CO

Pages: 13    Published: Jan 1996

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Abstract

Two series of experiments were conducted at Rocky Flats Plant (RFP) to identify the critical operating parameters for microwave solidification and to evaluate the performance of the product against the Environmental Protection Agency's (EPA's) Toxicity Characteristic Leach Procedure (TCLP). A surrogate hydroxide coprecipitation sludge spiked with heavy metals was used in the study. The RFP process uses microwave energy to heat and melt the waste into a vitreous final form that is suitable for land disposal. The results of the study indicate that waste loading and borax content in the glass-forming frit are critical in the treatment of hydroxide sludge. Also, the product will easily satisfy EPA's limitations for land disposal. These results are very encouraging and support RFP's commitment to the use of microwave technology for treatment of various mixed waste streams at the facility.