Treatment of Wastewater (Red Water) Resulting from TNT (Trinitrotoluene) Purification,
ARMY ARMAMENT RESEARCH AND DEVELOPMENT CENTER DOVER NJ
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Numerous approaches have been investigated to either concentrate the red water for disposal or recover reusable products. These approaches included reverse osmosis, acidification, Tampella Process, Atomics International Aqueous Carbonate Process, SCA Billerud Process, and the Sonoco Sulfite Recovery Process SSRP. An assessment of these techniques based upon level of TNT production, foreign patent and scale down problems, simplicity of design, capital and operating cost estimates and other criteria resulted in selection of the SSRP for further evaluation. Extensive laboratory and pilot plant studies of process feedstock formulations, pellet versus slurry feed, multi-hearth versus rotary kiln furnace, evaporators, separators, dryers, feedstock mixers and transport systems were conducted. This resulted in the development of criteria currently being utilized for implementation of a sulfite recovery facility to support TNT production at Radford Army Ammunition Plant RAAP. The SRP process is developed for RAAP is described.