New membrane technology offers cheap drinking water from seawater
The consumption of drinking water is still increasing, while the availability of drinking water decreases. About 1 billion people in the world have no access to enough clean drinking water, while 70% of the Earth is covered with water.
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Other techniques to convert seawater into drinking water, like RO, MSF, or MED, use a lot of energy to vaporize the water or push the water through a membrane under high pressure. Memstill uses cheap waste-energy, which cuts down the energy consumption and CO2 emissions. The cost of desalination of one cubic meter water with Memstill could be under $0.50, where other distillation techniques cost about 1 dollar for the same amount of water.
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Other techniques to convert seawater into drinking water, like RO, MSF, or MED, use a lot of energy to vaporize the water or push the water through a membrane under high pressure. Memstill uses cheap waste-energy, which cuts down the energy consumption and CO2 emissions. The cost of desalination of one cubic meter water with Memstill could be under $0.50, where other distillation techniques cost about 1 dollar for the same amount of water.
State-of-the-art desalination technology – more information on the memstill web site.
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The energy to produce this is the issue. Some say it costs 4 gallons of water to produce a clean one and with still a shocking figure 1 billion people in the world ot having access to clean water it is definitely a conundrum which needs more attention.
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