Reactive Transport Modeling Approach and its Initial Saltcake Dilution Chemical Modeling

Onishi, Yasuo

Pacific Northwest National Laboratory (U.S.)

关键词: Chemical Wastes;    Pumping;    Chemical Reactions;    Waste Retrieval;    Gmin;   

DOI  :  10.2172/15010065
RP-ID  :  PNNL-14118
RP-ID  :  AC05-76RL01830
RP-ID  :  15010065

美国|英语

来源: UNT Digital Library

【 摘 要 】

During waste retrieval, chemical reactions, waste property changes, and waste movements/mixing interact. Thus,to be accurate, a waste process assessment methodology must account for these physical and chemical waste characteristics and mechanisms. This study provides suggestions for column tests and simulation modeling efforts to investigate saltwell pumping of Hanford Tank S-112. In addition, GMIN chemical modeling was initiated for S-112 saltcake dilution with 50% and 100% water as the first step of evaluating the feasibility of the reactive transport code ARIEL as a waste retrieval assessment methodology. The chemical modeling predicted the S-112 saltcake chemistry reasonably well. Although it is too early to conclude the usefulness of this reactive transport modeling approach, it is worth further evaluating its applicability to the waste retrieval process.