Apparatus and equipment for the treatment and/or purification of fluids, including fresh water, waste water, sea water, brackish water and effluent; filtration apparatus for industrial purposes; apparatus for pre-treatment and purification of fluids; devices for the separation of impurities from water and other fluids; effluent treatment purifying installations; apparatus for use in desalination treatment; water filtration apparatus for domestic and industrial use; separators and fluid purifi...