Evaluation of Wetting Agents to Mitigate Dusting When Transferring Dry Glass Former Chemicals.

Jones, T. M. ; Hansen, E. K. ; Schumacher, R. F.

Technical Information Center Oak Ridge Tennessee

关键词: Wetting agents;    Radioactive waste processing;    Dusting;    Mitigation;    Glass;   

RP-ID  :  DE2005838625

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 摘 要 】

Plant design support for the US Department of Energy (DOE) River Protection Project (RPP) - Waste Treatment Plant (WTP) required pilot scale testing of the High Level Waste (HLW) glass former chemical (GFC) delivery system. A pilot facility was assembled at the Clemson Environmental Technology Laboratory (CETL) under the direction of the Savannah River National Laboratory (SRNL). Tests were performed using a representative HLW GFC blend to determine the behavior of the dry chemicals when transported through a chute and discharged into the enclosed head space of an agitated tank. The use of chute purge air, injected upstream of the point where the GFCs were added to the chute, was investigated. The pilot scale testing showed purge air was effective in reducing GFC holdup in the chute and that when the GFCs were discharged into the tank head space, dusting was evident during all transport conditions. This dusting lead to additional bench scale and laboratory scale tests that showed the addition of wetting agents to HLW and Low Activity Waste (LAW) GFC blends effectively mitigated dusting at the bench and pilot scales.