Job Description:

• 1) Tends equipment that washes and reduces acidity of activated carbon, preparatory to drying: Turns valves, couples hoses, and starts pumps to circulate carbon sludge through washing and blending tanks in specified timing and sequence.

• 2) Admits prescribed amount of caustic soda into mixing tank or barrel to produce neutralizing solution of prescribed concentration.

• 3) Starts agitators in blending tanks and opens valves to admit water, caustic solution, and steam to system as directed by WASH OPERATOR.

• 4) Takes samples of carbon sludge and wash solution to determine acidity, using titration test and conversion chart.

• 5) Determines specific gravity of neutralized solution, using hydrometer, beaker, and siphon, and reports reading to system operator to facilitate process control.

• 6) Measures depth of carbon sludge in tank, using calibrated rod or suction tube.

• 7) Pumps washed and neutralized carbon to driers when test results indicate washing is completed.

• 8) Records tank-level and specific gravity readings in shift log.

• 9) Flushes tanks and lines with water hose, dismantling piping as necessary to remove caked deposits, using wrenches.