top of page
  • What is the expected coverage area per gallon?
    Coverage is dependent on surface type, concrete will require more than the same area of steel. Our solutions are water based therefore one gallon of our solution would cover the same amount as a gallon of water.
  • Can you provide a square foot number for steel and concrete?
    For steel assuming 6ml/sq ft, 450 to 600. Concrete assuming 12ml/ sq ft 200 to 300 or less depending on porosity
  • What is the expected handling of the waste stream?
    If our solution is used to remove radioactive material the solution will become radioactive and should be handled as such
  • This question is geared towards hazardous materials other than radioactive waste. Can we assume the answer is the solution is not hazardous material on it’s on?
    The solution is not hazardous on it's ow
  • If the material it is used on is non hazardous is the stream still non hazardous?
    If the solution picks up radioactive material it may become hazardous.
  • How many Ion Exchange Equivalents of cation and anion is required if the effluent is sent through Ion exchanger? Let’s assume contamination is Cs 137 and Co 60 at 450 uCi/100 cm2.
    Cs-137, assume specific activity of 87 Ci/g, 450 uCi = approx. 0.000074 mEq. Co-60, assume specific activity of 1150 Ci/g. 450 uCi = approx. 7.6 E-7 mEq. Assume resin capacity of 1 mEq / g . Most resins vary between 2 and 4 mEq / g. Effectiveness of the resin depends on the construction of the column, operating pressure, contamination with non radioactive metals (especially Iron), channeling, etc. Considering all the different factors, the column size should be appropriate for the flow rate desired avoiding excess pressure
  • Can I evaporate the solution down rather than running it through IX?
    As long as the contamination is not volatile.
  • Has solidification of solution been reviewed?
  • What’s the second, third, multiple Dfs? Lets assume Cs 137 and Co 60 with surfaces of steel and concrete.
    First decontamination factor is up-to 100% (varies from 20 to 100%) Second and third applications each remove 10 to 20% of remaining activity. A fourth application is usually ineffective.
  • What is the depth of adsorption?
    Same as water.
  • What is the amount of bleed back/appearance out of material adsorption? Lets assume stainless steel and concrete
    Stainless steel virtually non. Concrete up-to 20% depending on porosity
  • What is optimal amount of time following application should second application occur?
    Reapplication can occur immediately.
  • What substrates have you tried?
    Stainless steel, painted steel, aluminum various forms and finishes, concrete, wood painted and unfinished, various plastics, etc
  • How much water is required for rewetting?
    Same volume as initially used minimum.
  • How much liquid is required for removal? Let us assume steel and concrete are the surfaces to be doncontaminated
    Steel, the decontamination solution can be wiped off and the surface rinsed with an equal volume of de-ionized water. Concrete will require more depending on rinse procedure and pick up ( wet vacuum?).
bottom of page