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  • LIFE SCIENCES (GENERAL)  (1)
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    facet.materialart.
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    Biocidal quaternary ammonium resin (1983)
    In:  CASI
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    Publication Date: 2019-06-28
    Description: Activated carbon (charcoal) and polymeric resin sorbents are widely used in the filtration and treatment of drinking water, mainly to remove dissolved organic and inorganic impurities and to improve the taste. Earlier hopes that activated carbon might "disinfect' water proved to be unfounded. The feasibility of protecting against microbial infestation in charcoal and resin beds such as those to be incorporated into total water reuse systems in spacecraft was investigated. The biocidal effect of IPCD (insoluable polymeric contact disinfectants) in combination with a representative charcoal was assessed. The ion exchange resins (IPCD) were shown to adequately protect charcoal and ion exchange beds.
    Keywords: LIFE SCIENCES (GENERAL)
    Type: NASA-CR-171802 , NAS 1.26:171802
    Format: application/pdf
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    NASA TECHNICAL REPORTS
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