McDonnell Douglas

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McDonnell Douglas
Long Beach, CA
General Contractor:
Phone: 213-630-5801
Size: $480,000.00
Type: 120 gpm chromate reduction wastewater treatment system.
Industry: Aircraft Manufacturer
Project Engineer: John Andressen
Project Completed: 1988

HEI supplied a turn-key wastewater treatment system to reduce chromate, remove ferrous cyanide and remove heavy metals from paint conversion coating wastewater. HEI designed, manufactured and installed the following:

  1. Lift station
  2. Chromate reduction
  3. Chemical conditioning
  4. HEI 440/60/MC inclined plate clarifier with motorized rake
  5. Continuous backflush sand filter
  6. HEI sludge thickener
  7. HEI B-10 filter press


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