Accession Number : ADA512786


Title :   Development of Environmentally Benign and Reduced Corrosion Runway Deicing Fluid


Descriptive Note : Final rept. Jul 2006-Dec 2008


Corporate Author : BATTELLE MEMORIAL INST COLUMBUS OH


Personal Author(s) : Chauhan, Satya P ; Roshon, Melissa S ; Conkle, H N ; Samuels, William D ; Berman, Elizabeth ; Wyderski, Mary


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a512786.pdf


Report Date : Aug 2009


Pagination or Media Count : 106


Abstract : Six runway deicing fluids (RDFs) were certified under AMS 1435 and met or exceeded other key deicing performance and materials compatibility criteria. Simultaneous property improvements and RDF cost reduction was due to the use of low-cost, bio-based ingredients. A major concern with potassium acetate (KAc) and other organic-salt RDFs is their aggressive attack on carbon brakes, due to catalytic oxidation, cadmium-plated parts, and some other materials. Battelle-RDFs are dramatically better than KAc RDFs with respect to compatibility with carbon brakes, cadmium-plated parts, and cast magnesium alloys. Battelle-RDFs were typically 75% less reactive to carbon, thus projected to improve brake life from one year to about four years. Battelle-RDFs have less than half the toxicity of currently used RDFs due to elimination of toxic corrosion inhibitors. A cost-benefit analysis of preferred Battelle-RDFs showed that they were not only cheaper than RDFs based on KAc or KAc+propylene glycol, bust also reduced aircraft/airport maintenance costs. The combined annual savings for US application alone was projected to be $20M to $55M.


Descriptors :   *RUNWAYS , *DEICING SYSTEMS , *CORROSION INHIBITION , *ENVIRONMENTAL PROTECTION , *FLUIDS , CADMIUM , BIODEGRADATION , POTASSIUM , ACETATES , BIOCHEMICAL OXYGEN DEMAND , CATALYTIC OXIDATION , ORGANIC MATERIALS , CARBON , COMPATIBILITY , COST REDUCTION , LOW COSTS , TOXICITY


Subject Categories : Terminal Flight Facilities
      Environmental Health and Safety


Distribution Statement : APPROVED FOR PUBLIC RELEASE