Apparatus for osmotic power generation and desalination using salinity difference

摘要

An apparatus for osmotic power generation and desalination of seawater using a salinity difference includes: a first osmotic membrane reactor (10) having a first salt water position space (11) and a third salt water position space (12) separated by a first forward osmotic membrane (13); a second osmotic membrane reactor (20) having a second salt water position space (21) and a draw solution position space (22) separated by a second forward osmotic membrane (23); a high pressure pump (30) connected between the second salt water position space (21) and the third salt water position space (12) and supplying salt water which has passed through the second salt water position space (21) to the third salt water position space (12) and pressurizing salt water, which has passed through the second salt water position space (21), to supply it to the third salt water position space (12) such that pressure retarded osmosis can be made in the first osmotic membrane reactor (10); a desalination unit (100) obtaining fresh water by separating a draw solute from a draw solution diluted through a transmission of water in salt water of the second salt water position space (21) by way of the draw solution position space (22); and a turbine (40) driven by flow force of salt water discharged from the third salt water position space (12) to produce electric energy.