Complex Microfiltration Behavior of Metal Hydroxide Slurries
Crossflow filtration is to be a key process in the treatment and disposal of approximately 60,000 metric tons of high-level waste stored at the Hanford Site in Richland, Washington. Pacific Northwest National Laboratory is assessing filter performance against waste simulant materials that mimic the chemical and physical properties of Hanford tank waste. Prior simulant studies indicate that waste filtration performance may be limited by pore and cake fouling. To limit the shutdown of waste treatment operations, the pre-treatment facility plans to recover filter flux loses from cake formation and filter fouling by frequently backpulsing the filter elements. The objective of the current research is to develop an understanding of the roles of cake and pore fouling and potential flux recovery through backpulsing of the filters for Hanford waste filtration operations. Metal hydroxide wastes were tested to examine the role of particle-filter interaction on filter performance.
- Research Organization:
- Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC05-76RL01830
- OSTI ID:
- 1179149
- Report Number(s):
- PNNL-SA-77214; EY4049110
- Resource Relation:
- Conference: WM 2011: Global Achievements and Challenges in Waste Management, February 28 - March 3, 2011, Phoenix, Arizona, Paper No. 11376
- Country of Publication:
- United States
- Language:
- English
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