Treatment tests for ex situ removal of chromate, nitrate, and uranium (VI) from Hanford (100-HR-3) groundwater. Final report

Technical Report · Mon Nov 15 04:00:00 EST 1993

DOI:https://doi.org/10.2172/10134714· OSTI ID:10134714

Beck, M A; Duncan, J B

This report describes batch and anion exchange column laboratory-scale studies investigating ex situ methods to remove chromate (chromium [VI]), nitrate (NO{sub 3}), and uranium (present as uranyl (uranium [VI]) carbonato anionic species) from contaminated Hanford Site groundwaters. The technologies investigated include chemical precipitation or coprecipitation to remove chromate and uranium, and anion exchange to remove chromate, uranium, and nitrate. The technologies investigated were specified in the 100-HR-3 Groundwater Treatability Test Plan (DOE-RL 1993). The goal of these tests was to determine the best method to remove selected contaminants to below the concentration of the project performance goals. The raw data and observations made during these tests can be found in the Westinghouse Hanford Company (WHC) laboratory notebooks (Beck 1992, Herting 1993). The method recommended for future study is anion exchange with Dowex 21K resin.

• Research Organization: Westinghouse Hanford Co., Richland, WA (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC06-87RL10930
• OSTI ID: 10134714
• Report Number(s): WHC-SD-ER-DTR--001; ON: DE94008611; BR: 35AF11201/35AF11202
• Country of Publication: United States
• Language: English

Related Subjects

054000
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
54 ENVIRONMENTAL SCIENCES
540230
540250
CHROMATES
FLOCCULATION
GROUND WATER
HEALTH AND SAFETY
ION EXCHANGE
NITRATES
PRECIPITATION
PROGRESS REPORT
RADIOACTIVE MATERIALS MONITORING AND TRANSPORT
REMEDIAL ACTION
SEPARATION PROCESSES
SITE RESOURCE AND USE STUDIES
URANIUM