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TITLE(s): DIGESTION OPERATOR (smelt. & refin.) Tends battery of digester vessels that dissolve bauxite in plant liquor: Turns valves on pumps to transfer liquor and bauxite slurry through heaters into digester vessels. Turns valves to inject milk of lime into vessels. Adjusts pumps and valves to circulate cleaning solution through process lines. Collects samples of slurry and alumina solution for laboratory analysis. Keeps log of operations. GOE: 06.04.10 STRENGTH: H GED: R2 M1 L1 SVP: 3 DLU: 77 | |||||||||||||||||||||||||||||||||||
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