Thla report waa prepared a1 an account of work tponaorod by tht Unlttd Stattl Government. Neither the Unlttd Stattl nor tho Enorgy Ro10arch and Otvtlopmont Admlnlatratlon, nor the Nuclear Regulatory Comml11lon, nor any of their employee~, nor any of their contractor•, aubcontractora, or their employee~, makoa any warranty, expreaa or Implied, or aaaumea any legal liability or reaponalblllty for the accuracy, completene11 or uaefuln111 of any Information, apparatus, product or proce11 dlacloaed, or repreaenta that Ita uae would not Infringe privately owned rlghta.

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The System Design Study (SDS), part of the Waste Technology Development Department at Idaho National Engineering Laboratory (INEL), examined techniques _vailable for the remediation of hazardous and transuranic (TRU) waste stored at the Radioactive Waste Management Complex's (RWMC's) Subsurface Disposal Area (SDA) at INEL. Using specific technologies, system concepts for treating the buried waste and the surroundingcontaminated soil were evaluated. Evaluation included implementability,effectiveness,and cost. SDS resulted in the development of technologyrequirements including demonstration,testing and evaluation activities needed for implementingeach concept. The SDS results are published in eight volumes. Volume I contains an executive summary. The SDS summary and analysis of results are presented in Volume II. Volumes III through VII contain detailed descriptions of twelve system and four subsystem concepts. Volume VIII contains the appendices.

An integrated systems engineering approach is used for uniform comparison of widely varying thermal treatment technologies proposed for management of contact-handled mixed low-level waste (MLLW) currently stored in the U.S. Department oi"Energy complex. Ten different systems encompassing several incineration design options are studied. All subsystems, including facilities, equipment, and methods needed for integration of each of the ten systems are identified. Typical subsystems needed for complete treatment of MLLW are incoming waste receiving and preparation (characterization, sorting, sizing, and separation), thermal treatment, air pollution control, primary and secondary stabilization, metal decontamination, metal melting, mercury recovery, lead recovery, and special waste and aqueous waste treatment. The evaluation is performed by developing a preconceptual design package and planning life-cycle cost (PLCC) estimates for each system. As part of the preconceptual design process, functional and operational requirements, flow sheets and mass balances, and conceptual equipment layouts are developed for each system. The PLCC components estimated are technology development, production facility construction, pre-operation, operation and maintenance, and decontamination and decommissioning. Preconceptual design data and other technology information gathered during the study are examined and areas requiring further development, testing, and evaluation are identified and recommended. Using a qualitative method, each of the ten systems are ranked.

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