Patent US 8,148,594 B2 · April 3, 2012

Process for Treating Radioactive Waste Water to Prevent Overloading Demineralizer Systems

A pre-treatment process that removes problem isotopes upstream of a plant's demineralizers, so the polishing beds aren't overloaded — extending resin life and keeping the downstream system effective.

Patent US 8,148,594 B2 Inventor Mark S. Denton, John M. Raymont Jr., Hubert W. Arrowsmith Granted April 3, 2012

Public patent record

This is a plain-language summary of a public patent. It is written for general readers and is not a substitute for the granted claims. For the authoritative, legally operative text, see the official record linked below.

01 What it covers

Plant demineralizer (ion-exchange) beds are expensive and are quickly exhausted when a waste stream is heavy in a particular isotope. This process places an isotope-specific step ahead of the demineralizers to strip out that load first, so the polishing beds see a much lighter, cleaner stream.

02 Why it matters

  • Protects plant assets: upstream isotope removal keeps costly demineralizer resin from being consumed prematurely.
  • Lower operating cost: fewer resin change-outs and less secondary waste from spent polishing beds.
  • Drop-in: designed to sit ahead of existing demineralizer systems rather than replace them.

03 Patent family

This invention was filed in multiple jurisdictions; related filings share the same disclosure.

JurisdictionNumberDate
United States (granted)US 8,148,594 B2Apr 3, 2012
EuropeEP 2181070May 5, 2010
CanadaCA 2,695,592Apr 23, 2009
WIPO (PCT)WO 2009/051878Apr 23, 2009

04 Official record

Patents are public documents. For the full specification, drawings, and legally operative claims:

05 Related technology