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Nochar Environmental & Nuclear Technologies

China

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Nochar Technology Summary

 

I.  DESCRIPTION OF “N’ TECHNOLOGY

  • granular polymers, state of the art absorption technology

  • solidification of contaminated liquids: hydrocarbon, acid, alkaline, water

  • mechanical, inter-molecular bonding process, “wicking” action

  • no chemical reaction; no heat build-up or heat release from waste for hydrocarbon solidification

 

II.  FEATURES OF “N” TECHNOLOGY

  • small volumetric increase; generally 5% depending on composition of waste

  • bonding ratios vary according to chemical composition and regulatory requirements:   ratio based on weight; liquid waste : Nochar polymers LLW, ILW and HLW:

    • tritiated oil, from 1:1 to 2:1

    • legacy waste (oil / organic), 2:1 - 4:1

    • solvents, 3:1 - 5:1

    • acid, 3:1 - 6:1

    • alkaline, 1:1 - 3:1

    • sludge, 3:1 - 8:1

  • no leaching; hydrocarbons, water, acid linked and secured in polymer

  • blend polymers to solidify each waste stream

  • polymers reduce the risk of fire

  • time to complete solidification depends on composition: 1 - 48 hours

  • forms of solidified mass vary; solid, gel, flacks or “oatmeal”, sand-like

  • stabilizes cesium, plutonium, uranium, cobalt, mercury, lead, etc.

  • remains solid for 10,000 years +

  • disposal: long-term / final storage or incineration (less than 2% ash)

 

III.  TEST PROGRAMS COMPLETED IN U.S. DEPARTMENT OF ENERGY

  • leach tests required / passed (TCLP) at each U.S. DOE site

  • hydrogen gas tests on TRU waste

  • stability / aging: 90 mega-rad gamma (cobalt source) on oil polymers; 75 mega-rad gamma (cobalt source) on acid / alkaline / water polymer

  • pyrophoric metals in aqueous waste stream

  • elevated heat test, 140 degree F, 3-14 days on TBP-purex waste

  • liquid release test at 50 psi

  • VOC gas tests, toxicity tests

 

 

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