CENTRAL PUMPING AND ENERGY RECOVERY IN A REVERSE OSMOSIS SYSTEM

摘要

A reverse osmosis system includes a plurality of feed pumps (20) each having a feed pump input and a feed pump output, an input manifold (80) in fluid communication with the feed pump inputs and a membrane feed manifold (82) in fluid communication with the feed pump output. The system also includes a plurality of membrane chambers (12) each in fluid communication with the membrane feed manifold and generating a permeate output and a brine output, each brine output in fluid communication with a brine manifold (104). The system further includes a plurality of booster, devices (212) each having a turbine portion (214) with a turbine input in fluid communication -with the brine manifold and a pump portion (210) having a booster device pump input and a booster device pump output, each booster device pump output in fluid communication with the membrane feed manifold (82). The system includes a pump input manifold (222) in fluid communication with the booster device pump input. The system also includes a medium pressure pump (200) in fluid communication with the input manifold (80) and the pump input manifold (222) '.