A professional who controls electrolysis tanks to purify electrolyte used in copper refining by removing copper, arsenic, and nickel. Respnsibilities include:

• Places lead anodes and copper cathode starting sheets in tanks and turns valves to fill tanks with impure electrolyte.
• Switches on current and starts circulation pumps to remove copper from solution and deposit it onto cathode.
• Pumps solution into high-voltage tank system to deposit arsenic on cathodes.
• Pumps electrolyte from high-voltage tanks into evaporators that concentrate solution to specified specific gravity.
• Turns valves to drain condensed solution into settling tanks and to recover acid after nickel sulfate has settled.