November 21, 2013
“Desalination of Seawater”
Water is extremely essential to every human in this world. The scarcity of water has increased in the past decades due to the overpopulation of humans. Today, we found ourselves in a critical stage where most people have not realized the consequences for the future generations. The government is investing economic resources to find innovative methods to produce fresh water. The process that removes salt from sea waters is the desalination of sea waters to breed freshwater. This process of converting seawater to clean water has caused an answer too many countries. Countries from the Middle East where there is a massive crisis of clean water, they are recurring to this cost-effective process to the solution of the water crisis. Humans cannot drink salty water, but saline water can be made into freshwater, which people need every day to live. The process is called desalination, and as the lack of fresh water grow more countries will use it to provide drinking water. Fresh water will be in short supply in some part of the United States and the world. As the population continues to grow, the lack of fresh water will appear more frequently. In many desert regions of the world including United States, the drought of fresh water resources has been critical, and it will be increasingly influential in the future. The water problem needs to be considered seriously as fossil energy resources to continue the factors of the world stability. Desert regions simply do not have rivers, lakes that provide with the supply of fresh water and have only few underground water resources such as wells. The technique of desalination is one of the earliest forms of water treatment and its popularity has been the key to the world today (Perlman, Howard). Is seawater the solution to solve freshwater crisis? According to the United Nations, there are more than 1 billion people living in areas where water is running out, and that number could rise to 1.8 billion by 2025 ("Tapping the oceans."). The process of desalination is fundamental for those people that suffer for not having enough water. Scientists predict that by 2016, the amount that the amount of fresh water produced by desalination plants will exceed 10 billion gallons (38 million cubic meters) a year or double the rate in 2008 (Than, Ker). This means that there are innovative ways or techniques that productivity is at its highest level. The conversion of seawater to freshwater it is highly beneficial for the future as the freshwater runs out and people are living in areas where there is a lack of fresh water. Scientists are preoccupied about developing new and even ideas that make a change in water desalination. Today, in desalination plants, use a technology called reverse osmosis where the seawater is pressured into a small plastic membrane used as a barrier. The solid particles such as salt are unable to pass through the plastic layer, and water is able to filtered out and pour out to the other side (Than, Ker). In Europe, this technique has gained a greater acceptance because of its lower consumption of energy (Perlman, Howard). Early methods of water desalination used a considerable amount of energy than reverse osmosis, such as the heating of seawater (mg). As technology advances, we are taking advantage of creating new techniques of water desalination. This is a significant advantage for human beings and living things that are been affected of the lack of clean water. As the demand of desalination seawater increases, researchers will need to find solutions to manage and provide inverse osmosis plants at a lower price. The most difficult and negative aspects of the desalination of seawater are the cost. In the United States, nearly all seawater desalination plants are small systems used for high valued commercial and business needs. President John F. Kennedy was the first one to introduce...
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Than, Ker. "Could Seawater Solve the Freshwater Crisis?" National Geographic. National Geographic Society, 05 Aug. 2011. Web. 21 Nov. 2013.
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