Salina Cruz, Mexico


In an effort to approach a zero discharge policy, the Refinery of Antonio Dovali, located in Salina Cruz, recycles 16,000 m3/d of its treated waste water for use in a cooling tower and also uses the municipal wastewater for the same purposes. In addition an RO desalination plant produces water for other usages.



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These water reuse technologies enable this very sensitive area to conserve its water resources while meeting the industrial and agricultural needs of a dry land area where water availability is low.

The Salina Cruz I facility includes the treatment of the industrial effluents and desalination plant and the Salina Cruz II facility performs the treatment of the municipal effluents.


Design of the plants

Desalination plant

  • Capacity: 594 m3/h
  • Sea Water Wells
  • Sand Filtration
  • 4 Reverse Osmosis lines (2 stages)


Industrial wastewater plant

  • Capacity: 360 m3/h
  • Catalitic Desulfuration
  • Disolved Air Flotation
  • Activated Sludge nitrification-denitrification (N-DN)
  • Lime Softening
  • Sand Filtration


Municipal wastewater plant

  • Capacity: 324 m3/h
  • Pre-treatment
  • Activated Sludge nitrification-denitrification (N-DN)
  • Sand Filtration
  • Disinfection



For more information


Degremont SA

AV. Paseo de la Reforma N°350
Torre del Angel
Piso 15 -Col. Juarez 
Mexico DF 6600


Tel : + 52 55 50 80 35 00
Fax :+ 52 55 52 07 73 26