Reprint of hhtorical document PVTD-T3C-95-166 Rev. 0. dated January 1995. Data. formauing. ami ciher mnventiom rcflM rtandardr at the aigilal dare of priming. Technical peer reviews and editorial reviews may m have been performed. DISCLAIMERThis report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor Banelle Memorial Institute, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or.usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government The program for the full-scale feed-preparation systems characterized process performance and evaluated equipment performance. The process evaluation included determination of foaming tendency during boiling and formating; off-gas generation rate, composition, and decontamination factors (DFs) during boiling and formating; condensate composition; tendency of slurry solids to cake on equipment;. redox adjustment by formic acid addition; and chemical additions. Equipment was evaluated for its capability to obtain and maintain a homogenous slurry, concentrate (heat, boil, and cool) the slurry, take representative Samples, transfix slurry, accurately sense slurry processing parameters oevel, temperature, density), feed the melter, operate safely, and produce a consistent product.The HWVP design and process were evaluated with test equipment which is as close to plant design as practical. The test approach was to establish baseline equipment performance with water. Then, each unit operation of the feed-preparation process for the Slurry Receipt and Adjustment Tank (SRAT), Slurry Mix Evaporator (SME), and Melter-Feed Tank (MFT) was completed in the t&t tank with nonradioactive HWVP feed simulant. For each process step, equipment was observed and data taken to characterize the process and evaluate equipment performance.. The paraineters varied included the slurry type, liquid level, and agitation speed. The two liquid levels primarily used in the test tank were a nominal high level (approximately 7800 gal) and an inter-'mediate level 6 in. above the tank heatingkooling coils (approximately 5700 gal). The agitator was characterized at various speeds (45, 85, and 130 rpm) with water, during the equipment performance testing, and with the HWVP feed slurry simulant. The test media included HWVP simulated dilute feed (approximately 3 I g waste oxidell melter feed), concentrated HWVP feed (approximately 140 g waste oxideL melter feed), hrmated slurry (approximately 150 g waste oxiddL melter feed), and melter feed (approximately 500 g total oxide/L melter feed). VThe...

DISCLAIMERPortions of this document may be illegible in electronic image products. Images are produced from the best available original document. SUMMARYThis report provides reviews of papers and reports for three basic categories of melters: ardplasma-heated melters, combustion-heated melters, and joule-heated melters. The literature reviewed here represents those publications which may lend insight to phase I testing of low-level waste vitrification being performed at the Hanford Site in FY 1995. For each melter category, information from those papers and reports containing enough information to determine steady-state mass balance data is tabulated at the end of each section. The tables show the composition of the feed processed, the off-gas measured via decontamination factors, gross energy consumptions, and processing rates, among other data.

Pictures will be taken of the empty tank following the completion of slurry Aesting. Estimates of loss of suspended solids vs. time will be determined and compared with known (or estimated) total solids of tank, Determine the agitator requirements need& to maintain homogeneity of the RWCT simulant.

Pacific Northwest Laboratoly (PNL) conducted this study for Fluor Daniel Inc. and Westinghouse Hanford Company. The purpose of the study was to assess the effect of solids loading on the hydraulic properties of frit slurries. The effect of solids loading on the hydraulic properties of the frit slurries was evaluated by testing various concentrations of frit slumes in various sized schedule 40 stainless steel piping. The pressure drop in straight and 9Odegree long radius elbow sections was measured as a function of flowrate, pipe size, and solids concentration. ' Date QP REPRESENTATIVE k 2 K &A Signature BD Slonecker COGNIZANT MGR. /TASK LEADER CJ Freeman