A potable water producing system for disposition at a body of salt water and a method of producing potable water is provided. The system includes a wave energy conversion system (AWECS) and a portable filtration-anchor system. The AWECS is in the form of a floating articulated barge housing a desali
A potable water producing system for disposition at a body of salt water and a method of producing potable water is provided. The system includes a wave energy conversion system (AWECS) and a portable filtration-anchor system. The AWECS is in the form of a floating articulated barge housing a desalination system including a reverse osmosis membrane. The filtration-anchor system is submerged in the body of salt water and includes a sand filter to filter the adjacent salt water and to provide the filtered salt water to the desalination system on the articulated barge. The action of the waves on the articulated barge provides energy to pump the filtered salt water from the sand filter to the reverse osmosis member to produce potable water. Moreover, the action of the waves on the articulated barge effects the shaking of the reverse osmosis filter, thereby rendering it self-cleaning.
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1. A system for producing potable water comprising: (a) an articulated barge system for floating on a body of salt water having waves, the barge system including a desalination system to produce potable water from filtered salt water, the barge system being arranged for converting energy of the wave
1. A system for producing potable water comprising: (a) an articulated barge system for floating on a body of salt water having waves, the barge system including a desalination system to produce potable water from filtered salt water, the barge system being arranged for converting energy of the waves into energy to pump the filtered salt water to the desalination system, the desalination system including a reverse osmosis membrane, the reverse osmosis membrane being arranged to be self-cleaned by the action of the waves on the barge system; and(b) at least one filter-anchor, the at least one filter-anchor being arranged for placement on the floor of the body of salt water and comprising a filter housing and a filter, the filter housing having an interior chamber, at least one inlet, at least one outlet, and a filter located within the filter housing, the at least one inlet being arranged for providing salt water to the filter, the filter being adapted to filter the salt water to produce filtered salt water, the outlet being coupled to the desalination system, whereupon the salt water can be drawn into the filter and filtered to produce the filtered water which can be pumped from the outlet to the desalination system by the energy of the waves, said filter housing comprising a barge structure that permits said filter housing to be towed to a sea water location. 2. The system for producing potable water of claim 1 wherein the filter is a sand filter comprising clean, washed, coarse sand. 3. The system for producing potable water of claim 2, wherein the area of the at least one inlet provides a surface intake velocity of less than 0.5 feet per second to restrict incursion of fish larva and macro or micro vertebrae into the sand filter. 4. The system for producing potable water of claim 2, wherein the sand filter comprises a porous bag arranged for holding the sand in the interior chamber. 5. The system for producing potable water of claim 1, wherein the filter-anchor, is floatable and towable to a deployment site in the body of salt water. 6. The system for producing potable water of claim 1, wherein the filter housing comprises hatches to enable the submersion of the filter housing via flooding of the interior chamber and controlled sinking of the filter-anchor to the floor of the body of salt water. 7. The system for producing potable water of claim 6, wherein the hatches are closable and wherein the filter-anchor is arranged to be floated from the floor of the body of salt water by closure of the hatches and introduction of air into the filter-anchor. 8. The system for producing potable water of claim 1, wherein the filter housing comprises hatches to enable the submersion of the filter housing via flooding of the interior chamber and controlled sinking of the filter-anchor to the floor of the body of salt water. 9. The system for producing potable water of claim 8, wherein the hatches are closable and wherein the filter-anchor is arranged to be floated from the floor of the body of salt water by closure of the hatches and introduction of air into the filter-anchor. 10. The system of claim 1 wherein the articulated barge system comprises at least two barges which are hinged together and having at least one pump straddling the at least two barges and operative to pump the filtered salt water to the reverse osmosis membrane in response to the action of the waves on the barges. 11. The system of claim 10 wherein the at least one pump comprises a horizontal bi-directional linear pump. 12. The system of claim 11 additionally comprising a flow rectifier coupled to said horizontal bi-directional linear pump to produce a unidirectional water flow of the filtered water and deliver the unidirectional flow of filtered water to the reverse osmosis membrane. 13. A method of producing potable water comprising: (a) floating an articulated barge system on a body of salt water having waves, the barge system including a desalination system to produce potable water from filtered salt water, the desalination system including a reverse osmosis membrane;(b) towing at least one filter-anchor having a housing comprising a barge structure on a surface of the body of salt water and disposing said at least one filter-anchor on the floor of the body of salt water, the filter anchor comprises a filter housing and a filter, the filter housing having an interior chamber, at least one inlet, at least one outlet, and a filter located within the filter housing, the at least one inlet being arranged for providing salt water to the filter, the filter being adapted to filter the salt water to produce filtered salt water;(c) coupling the outlet to the desalination system; and(d) utilizing the barge system to convert the energy of the waves into energy to pump the filtered salt water to the desalination system, whereupon the filtered salt water is converted to potable water utilizing the reverse osmosis membrane, the reverse osmosis membrane being self-cleaned by the action of the waves on the barge system. 14. The method of producing potable water of claim 13 wherein the sea water provided by the at least one inlet to the filter is at an intake velocity of less than 0.5 feet per second to restrict incursion of fish larva and macro or micro vertebrae. 15. The method of producing potable water of claim 14 wherein the filter is a sand filter, which comprises a porous bag and sand, the porous bag being arranged for holding the sand in the interior chamber. 16. The method of producing potable water of claim 13 additionally comprising providing a mooring buoy for the at least one filter-anchor. 17. The method of producing potable water of claim 13 wherein the filter is a sand filter, which comprises a porous bag and sand, the porous bag being arranged for holding the sand in the interior chamber. 18. The method of producing potable water of claim 13, wherein the filter housing comprises hatches and wherein the hatches are opened to enable the submersion of the filter housing via flooding of the interior chamber and controlled sinking of the filter-anchor to the floor of the body of salt water. 19. The method of producing potable water of claim 18, wherein the hatches are closable and wherein the filter-anchor is floated from the floor of the body of salt water by closure of the hatches and introduction of air into the filter-anchor. 20. The method of producing potable water of claim 13 wherein the articulated barge system comprises at least two barges which are hinged together and have at least one pump straddling the at least two barges, the at least one pump being operative to pump the filtered salt water to the reverse osmosis membrane in response to the action of the waves on the barges. 21. The method of producing potable water of claim 20 wherein the at least one pump comprises a horizontal bi-directional linear pump. 22. The method of claim 21 wherein the articulated barge system additionally comprises a flow rectifier coupled to said horizontal bi-directional linear pump to produce a unidirectional water flow of the filtered water and deliver the unidirectional flow of filtered water to the reverse osmosis membrane.
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