1995 Baseline solid waste management system description

Abstract

This document, prepared by the Pacific Northwest Laboratory (PNL) under the direction of Westinghouse Hanford Company (WHC), provides a detailed solid waste system description that documents the treatment, storage, and disposal (TSD) strategy for managing Hanford's solid low-level waste (LLW), low-level mixed waste (LLMW), transuranic and transuranic mixed (TRU-TRUM) waste, and greater-than-Class 111 (GTCIII) waste. This system description is intended for use by managers of the solid waste program, facility and system planners, as well as system modelers. The system description identifies the TSD facilities that constitute the solid waste system and defines these facilities' interfaces, schedules, and capacities. In addition, this system description provides the strategy for treating each of the waste streams generated or received by the Hanford Site from generation or receipt through final destination. Assumptions related to these waste process flows are also documented. Three storage facilities-two existing and one planned-will provide storage for Hanford's solid waste inventory and solid waste to be generated or shipped to the Hanford site. Storage will be required for batching waste into treatment facilities, for housing waste until treatment or disposal capacity is available, and for storing waste being transferred from one treatment facility to another. These facilities are: the (existing) Radioactive Mixed Waste Storage Facility, the (planned) Enhanced Radioactive Mixed Waste Storage Facility, and the (existing) Transuranic Storage and Assay Facility (TRUSAF). Four treatment facilities have been identified for processing waste volumes to meet disposal requirements. * Waste Receiving and Processing (WRAP) Module 1. The primary function of WRAP 1 will be to certify CH-TRU-TRUM waste in drums and standard waste boxes (SWBs) for shipment to the Waste Isolation Pilot Plant (WIPP). In addition, WRAP 1 will perform lot sampling on CH-LLW-I in drums prior to the lot's disposal in the LLW Burial Ground. This facility, which is currently under construction, is planned to begin processing CH-LLW-I in 1997 and CH_TRU_TRUM in 1998..-, The Commercial LLMW Stabilization Treatment Program (STP). The LLMW STP will process CH-LLh4W in drums and boxes smaller than 6 ft x 8 ft x 12 ft, to meet Resource Conservation and Recovery Act (RCRA) requirements for disposal in the mixed waste disposal trenches. The facility is expected to begin operation in 1999. Thermal Treatment Facility (TTF). The TTF will treat CH-LLMW in drums that contain physical waste forms or hazardous constituents requiring thermal destruction, such as organics and polychlorobiphenyls (PCBs). The treated LLMW will be shipped to the mixedswaste disposal trenches for disposal. The TTF is expected to begin operation in 1997.