The produced water in one container is generally 200~500m³/d. A container may need to submit 200m3/d -300 - 400m3/d for RO membrane, should it be configured with an energy recovery device(ERD), one piece of the DHP46 RO high pressure pump should satisfy the requirement.
A pre-filter solution - mechanical self-cleaning filter in a 20'' container (capacity 300-600m3/h); another container in serial with 200-400m3/h - with H.P. pumps and recovery units; the last container will be 1-3 * 20'' or 40'' container with RO membrane to produce the freshwater according to the pre-filter solutions and H.P. pumps can give under different ro water conditions, So there will be many containers in serial. A high-pressure centrifugal pump would suit the requirement, should it be configurated with an energy recovery device, the flow of one set H.P. pump still needs 200~400m3/h, but the centrifugal pump may be too big in size for a container, that is the question.