Update on NEA-TDB Database Development and Database Formatting Tool

International Collaboration Activities in Geologic Disposal Research: FY2021 Progress

“…To facilitate seamless integration between SFWD's thermodynamic database and international thermodynamic database compilations (e.g., the NEA-TDB radiochemical thermodynamic data), LLNL continued to create software to help manage thermodynamic database files as new and improved data become available (Zavarin et al, 2021a). The software will ensure that new data are added to databases correctly, conveniently, and consistently with existing data, and in a form immediately useful for reactive transport modeling.…”

“…In an effort to build an open-source database of raw sorption data for use in nuclear waste PA models, LLNL recently reached out to the JAEA colleagues and began the process of assimilating JAEA's large database of sorption data into the LLNL's database. The JAEA K d database is a web-based open-source database (https://migrationdb.jaea.go.jp/nmdb/db/sdb/search_1.jsp) that contains nearly 70,000 K d data (Zavarin et al, 2021a, Table 1) and also comprises information on both rock and single mineral sorption data. The database spans a wide range of radionuclides relevant to the nuclear waste programs (Zavarin et al, 2021a, Table 2).…”

“…The JAEA K d database is a web-based open-source database (https://migrationdb.jaea.go.jp/nmdb/db/sdb/search_1.jsp) that contains nearly 70,000 K d data (Zavarin et al, 2021a, Table 1) and also comprises information on both rock and single mineral sorption data. The database spans a wide range of radionuclides relevant to the nuclear waste programs (Zavarin et al, 2021a, Table 2). However, a number of issues needed to be resolved for use in surface complexation/ion exchange database development being pursued at LLNL.…”