A professional who tends processing equipment that separates organic colloidal matter from carbonated raw sugar beet liquor, and purifies liquor prior to refining into granulated sugar. Respnsibilities include:

• Opens valves and starts pump to fill settling tank with liquor and adds specified amounts of lime or milk of lime solution.
• Sets controls to maintain specified temperature of lime-liquor solution to aid in precipitation process.
• Takes sample of liquor from tank and tests for purity, using refractometer.
• Opens valves and pumps liquor to process storage tanks and lime sludge to filter station.
• Washes remaining sludge from bottom of settling tank.
• Records data, such as amount of liquor processed and refractometer readings on batches, in station log.