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FIGURE 3–1 Simplified schematic flow diagram for GATS. Source: Adapted from General Atomics, 2000a. concurrently through the ERH. Hydrolysis of the energetic materials by the caustic leaves only small pieces of residual energetics. The spiral flights in the ERH, which transport material axially along the cylinder, create baffles that divide the cylinder into a series of batches. The lifting flights slowly agitate the hydrolyzing solution with the energetic materials and metal parts. The drum is steam heated on the outside surface to maintain the ERH contents at 100°C to 110°C (212°F to 230°F), which is higher than the melting point of TNT-based energetic materials. The drum rotates slowly, and each batch moves through the ERH with a residence time of approximately 2 hours. General Atomics claims this time is sufficient for complete
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