? ? Power of the Sun- Energy Efficient Way to Turn Salt Water into Fresh Water – WieTec
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        WieTec 2020

        25th-27th, Aug. 2020

        National Exhibition & Convention Center(Shanghai)

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        Power of the Sun- Energy Efficient Way to Turn Salt Water into Fresh Water

         

        Drinking seawater can kill you, but we are left with not many options as we are running out of water from other sources. To make seawater safe to drink, we need to use a water treatment called desalination. Desalination?is one of mankind’s earliest forms of water treatment, however the process is very expensive and polluting. But there is a way to do it with clean energy and a tiny footprint.

        Thanks to the technological advancements in solar energy, nowadays we can produce potable water from saline water through methods of desalination powered by sunlight. Desalination usually uses large amounts of electricity because reverse osmosis requires keeping water at a constant pressure. The new tech keeps water at the right pressure independently, so it can work without connecting to the grid or using a set of expensive batteries to store power. Solar energy has the ability to drive the more popular thermal desalination systems directly through solar collectors and to drive physical and chemical desalination systems indirectly through photovoltaic cells.

        At a newly constructed solar-powered desalination plant in Kenya, a nonprofit called?GivePower?has been able to provide fresh water to around 25,000 people daily. The desalination plant opened up on the coasts of Kiunga in July 2018, and today it’s capable of creating 19,800 gallons (75,000 liters) of drinking water each day.

        Along with the growing water crisis, the ingenious solar powered desalination technology may also help tackle the women’s rights issues and make sure that the basic human needs are met. It’s been found that limited access to fresh drinking water keeps women out of the educational system.?According to a report?by the UN Commission for Human Rights, women and children in Africa and Asia must walk an average of 3.7 miles a day to procure water.

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