Optimization of Ultrafilter Feed Conditions Using Classical Filtration Models
Two classical models were evaluated to assess their applicability to test data obtained from filtration of a High Level Waste Sludge sample from the Hanford tank farms. One model was then selected for use in evaluation of the optimal feed conditions for maximizing filter throughput for the proposed Waste Treatment Plant at the Hanford site. This analysis indicates that an optimal feed composition does exists, but that this optimal composition is different depending upon the product (permeate or retentate) that is to be maximized. A basic premise of the design for the WTP had been that evaporation of the feed to 5 M Na (or higher if possible) was required to achieve optimum throughput. However, these results indicate that optimum throughput from a filtration perspective is achieved at lower sodium molarities (either 3.22 M for maximum LAW throughput or 4.33 M for maximum HLW throughput).
- Research Organization:
- Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC05-76RL01830
- OSTI ID:
- 860409
- Report Number(s):
- PNWD-SA-6855; JMESDO; TRN: US0504909
- Journal Information:
- Journal of Membrane Science, 265(1-2):137-141, Vol. 265, Issue 1-2; ISSN 0376-7388
- Country of Publication:
- United States
- Language:
- English
Similar Records
Effects of Blending and In-Tank Pretreatment on Direct Feed Hanford High Level Waste Vitrification - 18434
LOW ACTIVITY WASTE FEED SOLIDS CARACTERIZATION AND FILTERABILITY TESTS
Related Subjects
FILTERS
DESIGN
ULTRAFILTRATION
SLUDGES
STORAGE FACILITIES
RADIOACTIVE WASTE PROCESSING
HIGH-LEVEL RADIOACTIVE WASTES
FLOW MODELS
Ultrafiltration
High Level Waste
Concentration polarization
Resistance in series
Optimization