DIP Mariel A5

Wastewater treatment plant for the industrial park of Mariel – Lot A5

360° Service

  • Design
  • Construction


  • Cuba

Purification Technologies

Construction Technologies

Construction year

  • 2016

Plant performance

    • Population Equivalent: 11000 (1° Lot Of 2)
    • Actual Daily Output: 2200 M3/Dd
    • Max. Future Daily Output: 6600 M3/Dd
    • Cod In: 700 Mg/L
    • Cod Out: <120 Mg/L
    • Receiver: Sea


We designed and realised a treatment plant using the prefabricated technology aiming to speed up and secure the construction work: circular tanks in glazed steel to set up on site, two lamella clarifiers in stainless steel, as well as a technical room with machines and the electrical system inside two equipped 40’ HC shipping containers. Most of the electromechanical equipments left Italy already installed, wired and tested.


Mariel, which is located 50 km west of Havana, hosts a constantly growing, extended industrial park, the biggest in the Gulf of Mexico. After we had designed and realised the treatment plants in the respective areas A8 and A3, the Client entrusted us with the realisation of the plant in the A6 zone. This lot will be connected to a sewage, that needs a plant to treat wastewater coming from the different factories to discharge it to a water course. The volume of wastewater to treat is unknown, because we do not know yet the number and type of factories that are settling up here.


We know of the quality of wastewater to treat, but not the daily volume of wastewater in the mid and long term. Since a great effort in flexibility is required, we designed the plant in 3 identical modules, which can be realised separately. Seeing as how the treatment plant will be managed by the local staff, which is not specialised in water treatment, we opted for the MBBR technology (see link), in particular for its space-saving feature and ease in management.

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