DEVELOPMENT OF A CERTIFIED LOW-LEVEL WASTE STREAM FROM ANALYTICAL LABORATORY OPERATIONS AT LAWRENCE LIVERMORE NATIONAL LABORATORY

摘要

Chemistry and Materials Science Environmental Services (CES) is LLNL's on-site environmental analytical laboratory, analyzing approximately 2500 samples annually generally for waste characterization purposes. Due to the lack of process knowledge for analyzed samples, the waste produced by CES has traditionally been characterized on a "worst-case" basis as RCRA-hazardous mixed waste. By instituting rigorous "up-front" waste characterization, including segregation of acutely/extremely hazardous materials, utilizing regulatory exemptions, and developing a novel radiological characterization strategy, CES was able to receive approval for a certified LLW waste stream, adequately characterized for disposal at the Nevada Test Site. In the 10 months of operating history, CES has diverted 33% of its waste (by mass) from mixed to LLW. This will result in significant cost savings and reduction in waste re-handling/personnel exposure.