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    Copiapó Desalination Plant

    The pre-treatment stage uses ACCIONA Agua's proprietary technology to protect membranes from phenomena such as so-called “red tides” and the proliferation of jellyfish, which are typical in this part of the Pacific.

    Seawater is taken from the Pacific Ocean at a depth of 17 m and is then pumped to the desalination plant at 1,300 m from the shore. There, the water undergoes a desalination and purification process, and the brine that results from this process is returned to the ocean using a system of diffusers that prevent concentrations of salt that would be harmful to the marine ecosystem. The plant uses reverse osmosis, a highly flexible technology that makes it possible to treat different types of raw water since it is economically competitive and environmentally friendly.

    General Information

    Puerto Punta Totoralillo, Copiapó (Atacama Region), Chile 
    54,000 m3/d 
    Reverse osmosis 
    Contract type
    EPC + O&M (20 years) 
    End use of the water
    Mining activity and human consumption
    340,000 inhabitants

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