公开(公告)号：US20230271854A1

公开(公告)日：2023-08-31

申请号：US18012843

申请日：2021-06-04

Applicant: IDE WATER TECHNOLOGIES LTD.

Inventor： Alon TAVOR ,  Gregory SHTELMAN ,  Boris LIBERMAN

IPC: C02F1/44 ,  B01D61/02 ,  B01D61/06 ,  B01D61/10 ,  B01D61/12 ,  B01D61/58 ,  B01D61/14

CPC classification number: C02F1/441 ,  B01D61/025 ,  B01D61/06 ,  B01D61/10 ,  B01D61/12 ,  B01D61/58 ,  B01D61/145 ,  C02F2103/08

Abstract: A large scale water desalination process for producing at least 100,000 m3/day of product water. Feed water is passed through a high pressure pump driven by at least one steam turbine capable of producing at least 1 MW of energy, the pressurized feed water passing through at least one reverse osmosis membrane to provide a residual brine stream and a product water. A start-up step slowly increases pressure in the membrane at a maximum rate of 12 psi (8.3 Newtons/cm2; 0.08 MPa) per second by rotation of the turbine driven high pressure pump at a maximum rate of 30 RPM to slowly increase pressure on the membrane to a predetermined operational pressure and controlling the operational pressure following the start-up step by rotation of the high pressure pump between 500 RPM and 5000 RPM dependent on the pressure applied by the steam turbine.