REMOVAL OF TECHNETIUM 99 FROM THE EFFLUENT TREATMENT FACILITY (ETF) BASIN 44 USING PUROLITE A-530E & REILLEX HPQ & SYBRON IONAC SR-7 ION EXCHANGE RESINS

Abstract

This report documents the laboratory testing and analyses as directed under the test plan, RPP-204G7. The overall goal of this task~as to evaluate and compare candidate anion exchange resins for their capacity to rew~ve 7echnetium-99 from 3asin 44 Reverse Osmosis rejeet stream. The candidate re~ins evaluated were Purolite A-53GB, Reillex HPQ, and Sybron IONAC SR-7. TRADEMARK DISClAIMER. R&lerence hweitllo any specilicoomrne«.iaJ product, prooess, or service by trade name. trademark, manuracturer, or olheMise, does not tte<:2Ssariy wl'lStitJJte or Impty its endorsemenl, recommendation, or fa'lOfing by ti'le United Stales Gov8mmlN1! or atly agency lhlreof or Its oolltrddofs or slboonlractol'1. Prtllted ill ltKt Uni!l!ld Stat8s of America. To ObtaItt oopies of It1is ooo.smlll'lt. contact: Doalmenl Control Services,

In Situ Quantification of [Re(CO)3]+ by Fluorescence Spectroscopy in Simulated Hanford Tank Waste

“…One of the basic necessities in Tc remediation is to meet regulatory requirements for disposal of Tc found in U.S. Department of Energy (USDOE) waste streams and released into the environment. Current techniques to analyze samples of technetium include ion exchange chromatography (IC), mass spectrometry (MS), capillary electrophoresis (CE), coulometric titration, surface-enhanced Raman scattering (SERS), and extended X-ray absorption fine structure (EXAFS) . These techniques are often limited for routine analytical use by arduous sample treatment and long processing times.…”

In Situ Spectroscopic Analysis and Quantification of [Tc(CO)3]+ in Hanford Tank Waste

“…There are a variety of methods currently in place to analyze samples for Tc, − but these techniques are generally limited by extensive sample preparation (ion chromatography, ICP-MS, mass spectrometry, capillary electrophoresis), insufficient selectivity with regard to oxidation state (mass spectrometry) and chemical form (Tc NMR and coulombic titration) of the Tc species, and long processing times, on the scale of several hours (surface enhanced Raman), to a few days (ICP-MS and EXAFS). Current quantitative methods, such as ICP-MS and LSC, do not distinguish between total technetium and the nonpertechetate form, so no comparison can be made between conventional methods and that proposed here.…”