Surwon Technology – Develops Membrane Coating For Desalination

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Surwon Technology says its ultra-thin graphene-based coating will reduce energy costs required to desalinate water by 60%.

Hong Kong-based advanced materials innovator, Surwon Technology has developed a new super-thin membrane coating it believes has enormous potential to help solve the problem of drinking water shortages in many parts of the world as well as what it calls “game-changing implications” for the desalination industry.

The company says it has conducted a number of tests with partners in the desalination industry on the Chinese mainland in which significant reductions in the amount of energy required to produce drinkable water have been recorded.

Desalination is a process whereby sea or other salt water is processed to remove salt and other contaminants to make it suitable for human consumption or irrigation purposes. Currently, the process uses large amounts of energy to produce the desired cleanliness and, consequently, sourcing drinking water from groundwater, rivers and recycling is far more cost effective.

“Our new membrane can be applied to existing thermal or reverse osmosis (RO) desalination systems so we expect to have a commercially-viable add-on product within the next year,” said Surwon Technology’s Chief Technological Officer.

Owing to the new graphene-based membrane coating’s durability, Surwon Technology is mulling the prospect of entering into a partnership with a consumer product company with a view to developing a suite of products for the retail sector including water filtration systems in the home and offices.

Surwon Technology’s membrane coating works by being bonded with in situ membranes used in existing installations at desalination plants. It allows a greater volume of water to pass through the membrane while still removing the same if not more of the salt and other impurities but without a concomitant increase in the amount of energy typically required to increase yield.

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Henry So
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