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SEAWATER DESALINATION POWERED BY THEMOTION OF THE OCEAN

“If we could produce fresh water from salt water at a low cost, that would,

dwarf any other scientific accomplishment.”-President John F. Kennedy, 1962

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THE NEED FOR DESALINATED

WATER

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FRESH WATER DEMAND IS GROWING EXPONENTIALLYDUE TO POPULATION GROWTH, IMPROVED LIFESYLESAND THE SPREAD OF INDUSTRIALISATION

 CLOSE TO THE SEA

MANY SMALL ISLAND DEVELOPING STATES (SIDS)ESPECIALLY SUFFER FROM WATER SCARCITY

OVER PUMPING OF AQUIFIERS RESULTS IN SEAWATERINGRESS

   

WITH SEA LEVEL RISE

WATER SCARCITY IS PRESENTLY CONCENTRATED INTHE MID LATITUDES BUT THIS MAY SPREAD NORTH AND

SOUTH WITH CLIMATE CHANGE

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EXISTING DESALINATION

TECHNOLOGIESPRESIDENT KENNEDY HIGHLIGHTED 'LOW COST' AS A PREREQUISITE

AND VARIOUS DESALINATION TECHNOLOGIES HAVE BEENDEVELOPED WITH THIS IN MIND. 

EXISTING TECHNOLOGIES CAN BE BROKEN DOWN AS

THERMAL DISTILLATION MEMBRANE TECHNOLOGIES

THE FORMER REQUIRES LARGE AMOUNTS OF HEAT ENERGY AND ISGENERALLY ONLY VIABLE WHERE WASTE HEAT IS AVAILABLE e.g.

.

THE LATTER USES LESS ENERGY BUT THIS IS NORMALLY IN THEFORM OF ELECTRICITY TO DRIVE HIGH PRESSURE PUMPS.

BOTH TECHNOLOGIES ARE VERY ENERGY INTENSIVE AND HENCE

EXPENSIVE

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THE SEATRICITY SOLUTION

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FEATURES

NO FOSSIL FUEL ENERGY REQUIRED

 CONNECTION

ELECTRICITY IS PRODUCED AS A BYPRODUCT OF THEDESALINATION PROCESS WHICH CAN BE USED

LOCALLY, FED INTO THE GRID OR USED FOR PUMPINGTHE PRODUCED FRESH WATER INLAND

IF LOCAL GEOGRAPHY PERMITS THE SEAWATER CAN BE

PUMPED TO A HIGH ELEVATION RESERVOIR FORENERGY STORAGE PURPOSES

VERY LOW ENVIRONMENTAL IMPACT

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TECHNICAL BENEFITS (RO)

SEAWATER IS HARVESTED OFFSHORE WHERE WATER ISRELATIVELY CLEAN WHICH REDUCES PREFILTRATION

UNNECCESSARY TO OPTIMISE SYSTEM FOR MINIMUMENERGY USAGE WHICH ENABLES LOWER MEMBRANERECOVERY RATES AND HENCE MINIMUM FILTRATIONREQUIREMENTS

NO PRETREATMENT CHEMICALS REQUIRED

REDUCED SALINITY OF BRINE DISCHARGE VERY HIGH QUALITY FRESH WATER ABOVE W.H.O

STANDARDS

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SEATRICITY OCEANUS PUMPS

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PROTOTYPE OCEANUS DEVICE, ANTIGUA

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OCEANUS 1 DEVICES, EMEC, ORKNEY, UK

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SEATRICITY PROJECTS

SEATRICITY HAVE NOW COMPLETED OUR PROGRAM OFSEA TRIALS IN ANTIGUA AND AT EMEC IN SCOTLAND

PRESENTLY WE ARE ENGAGED IN DEVELOPING A 10MWELECTRICITY GENERATION PROJECT AT THE WAVEHUB, CORNWALL, UK

WE ARE ALSO SEEKING OPPORTUNITIES IN THECARIBBEAN TO DEPLOY A DESALINATION PROJECT

MANY THANKS FOR YOUR INTEREST

Bob Tillotson

SEATRICITY seatricity.net