Traditionally, desalination plants are a good idea that has proven hard to implement. They require vast amounts of energy to drive the separation process and often this energy comes from traditional, fossil fuel plants. This is a double whammy. High energy use and contribution to greenhouse gas emissions.
Now, if you are a regular reader of One Good Thing, you know that solar energy is becoming cheaper and more efficient in converting. So? Maybe solar power could help this desalination quandary? Well, the problem has been that these solar powered water treatment plants would depend so heavily on sunlight that their effectiveness would be hindered in areas with persistent cloud cover or inconsistent electricity supplies.
However, researchers have developed a novel desalination system that overcomes this limitation. The system moves away from the power needy reverse osmosis process and instead uses one called electrodialysis, which employs specialized membranes to selectively remove salt ions from seawater when an electric current is applied.
This development holds significant promise for geographically disadvantaged regions struggling with water insecurity. Coastal areas with limited freshwater resources, or locations with unreliable power infrastructure, can now benefit from a sustainable and consistent source of clean water. The ability to operate independently of sunshine makes this technology particularly valuable for areas prone to seasonal changes or unpredictable weather patterns.
Innovation in solar-power is good. Innovation in desalination is good. You know what else is good? Solutions for the global water crisis. By offering a reliable and sustainable solution for regions with limited access to clean water, this technology has the potential to illuminate a brighter future for millions facing water scarcity.
How it works after the break:
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