A professional who tends equipment that recovers cadmium, lead sulfate, and zinc oxide from dust collected in precipitators. Respnsibilities include:

• Signals overhead crane operator to dump dust into tank from which it is processed through series of sulfating tanks to precipitate and wash lead sulfate and cadmium.
• Pumps washed liquor to another tank for treatment prior to recovery of zinc oxide.
• Prepares lime solution and mixes it with zinc oxide liquor.
• Titrates samples or tests solution for acidity and specific gravity, using hydrometer.
• Distills cadmium in retort furnace.