REVERSE OSMOSIS KIT FOR PRODUCING POTABLE WATER FROM SEAWATER

摘要

A method and apparatus for producing potable water from sea water which is particularly suitable for use in survival craft at sea. A reverse osmosis module is lowered from the survival craft to a depth of about 130 fathoms at which depth the external pressure on the module is sufficient to cause substantially pure or at least potable water to permeate through the semi-permeable membrane of the reverse osmosis module into a collecting vessel. A pressure relief valve is provided on the water collecting vessel to prevent excess pressure build-up during recovery and an outlet means is also provided to remove the potable water when the apparatus is received in the survival craft.