Process Development for Permanganate Addition During Oxidative Leaching of Hanford Tanks Sludges

[摘要] Previous Bechtel National, Incorporated (BNI)-sponsored studies have targeted optimizing sodium permanganate for the selective oxidation of chromium from washed Hanford tank sludges (Rapko et al. 2004; Rapko et al. 2005). The recommendation from previous work was that contact with sodium permanganate in a minimally caustic solution, i.e., 0.1 to 0.25 M [OH-] initially, provided maximum Cr dissolution while minimizing concomitant Pu dissolution. At the request of BNI, further work on oxidative alkaline leaching was performed.

[发布日期] 2007-10-30

[学科分类] 核能源与工程

[关键词] AR FACILITIES;CHROMIUM;DISSOLUTION;LEACHING;OXIDATION;PERMANGANATES;SLUDGES;STORAGE FACILITIES;HANFORD RESERVATION;SODIUM COMPOUNDS;RADIOACTIVE WASTE PROCESSING