6.2 Temperature: in GCC most of the desalination plants are combined with power plants. Power plants produce water effluent with high temperatures. These water effluents are mixed with brine water from the desalination plant and discharge into sea water causing increasing the temperature of sea water. The average temperature of sea water in GCC in summer is 35 °C. the desalination plants and power plants brine discharge causing increasing in sea water temperatures between 7 °C to 8 °C(Dawoud & Al Mulla 2012) (Mohamed 2009). Most of the marine species can adapt to minor changes in salinity and temperatures. But it cannot adapt to exposure for continues change unfavorable conditions .that can lead to a change in species
Today, desalination is a common process that's used in seaside cities and towns worldwide. There are more than 15,000 desalination plants around the world providing freshwater from salt and brackish water alike (Planet Green 2011). This number continues to grow as researchers work to improve the process, both in terms of cost effectiveness and energy efficiency (DSE 2011). But countries such as Australia, Israel and even the United States are continually adding desalination plants of various sorts into their water-management portfolios. The facilities are common in North Africa and the Mideast, where freshwater is scarce (Chandler 2008).
1. There are two main sources of fresh drinking water, ground water and surface water. Ground water originates from precipitations that usually fall in the form of snow or rain. While, the surface water is also originates from precipitate that reaches the land surface and is then recharged into rivers, wetlands and lakes. Although these systems are usually reliable, in desperate time of need, a more reliable source of water is needed. The desalination plant is extremely valuable and flexible because it does not depend on rainfall. Instead, the desalination plant is the only source that relies on seawater. Using seawater in the desalination plant helps meet the community’s water needs and secures the water needs in the future. While other sources of water, such as rainwater or water from dames are not reliable enough to strictly rely
Desalination is the removal of salt and impurities from groundwater or seawater to produce fresh drinking water. Desalination is a secure water source that doesn’t depend on rainfall and has become a significant water source that has been strengthened through its decrease in production costs and related technological improvements. The process of Desalination is another means of securing Western Australia’s future water supply. Western Australia has two main plants, Perth Seawater Desalination Plant and Southern Seawater Desalination Plant, both of these plants deliver water to the Integrated Water Supply Scheme which supplies water to over 2 million people in Perth, parts of the South West, parts of the Agricultural region and the Kalgoorlie-Boulder
Desalination is a great way to help people. Many areas do not have fresh water resources such as rivers and lakes. Taking out the salt from seawater will provide lots of people. This is needed where there is not a lot of natural drinking water. “People are building the Carlsbad desalination project. When it is completed, the huge plant will turn as many as 56 million gallons of seawater each day into drinking
Ocean water desalination is the process of making ocean water drinkable. Seventy-one percent of the world is covered in ocean water, and a significant number of people in the world live within thirty miles of an ocean. Despite the abundance of resources, a large portion of the energy and materials found in the ocean remains largely untouched. Desalination of ocean water is the only solution for countries with a limited availability of existing sources of drinking. Areas such as parts of the Middle East and Africa, where water is scarce, may use outside shipments of fresh water and techniques to purify the abundant ocean water in order to survive. Some areas in South America where water may be abundant, could be unsafe to drink due to the biological
Another argument opposing desalination is the environmental concerns. Many believe that since ocean water is being extracted, marine life will be disturbed. Therefore, affecting the entire ecosystem: “With the majority of desalination plants extracting water directly through open water intakes in the ocean, there is a direct impact on marine life. Fish and other marine organisms are killed on the intake screens (impingement); organisms small enough to pass through, such as plankton, fish eggs, and larvae, are killed during processing of the salt water (entrainment). The impacts on the marine environment, even for a single desalination plant, may be subject to daily, seasonal, annual, and even decadal variation, and are likely to be species- and site-specific” (Cooley).
With the water crisis being seen around the world, even right here in the United States, we need to explore other options to supply fresh water to the residents. One State, in particular, that raises concern is the state of California. An alternative method to supply water to residents could be the process of desalination. Desalination is when fresh water is made by using either seawater or brackish and eliminating the minerals and salts as a way to make the water safe for human and agriculture uses ( Kesieme et al., 2013). In recent years, we have seen an increase the in the number of desalination plants around the United States (fig 1). However, is the process of desalination the answer for the water crisis going on in California? As a
California used to depend on surface water but once we started to see that surface water was depleting, we went straight to groundwater. After many years groundwater has also started to disappear leaving the question “what are we going to do next?”. This problem is causing the land of california to sink, make the next drought we are going to have even worse, using most of the groundwater we have left faster than it can get filled back up again, and ect. Therefore, the state of California should conserve more groundwater by lowering the maximum capacity of pumping extractions, recycling water to fill aquifers back up, and seawater desalination.
Desalinated water is critical to Perth’s water supply as Western Australia continues to experience a drying, arid climate. It is important that a reliance on traditional water sources such as dams are reviewed and new and sustainable sources that are climate independent are implemented. Factors of a drying climate, extreme weather conditions, population increase (Population in Perth to double in the next 50 years) and the way we currently source out water need to be evaluated in order to ensure a climate resilient supply that is independent of varied amounts of rainfall. Desalinated water is critical to Perth’s water supply due to the states large infrastructure and mining industry.
Tampa Bay Water is a seawater desalination plant located in Tampa, Florida. Their method of desalination of ocean water or brackish groundwater is another method to obtaining water from fresh surfaces or groundwater sources. This could be used to replace the need for a water supply dam. There are several different technologies that exist to remove salt and other impurities from ocean water. The two most commonly used methods are thermal distillation and desalination. Thermal distillation copies the natural water cycle by using heat to create a vapor that is converted into freshwater. Desalination is a process that removes some amount of salt and other minerals from saline water. The traditional process used is vacuum distillation, which
Since the discovery that desalination could provide humans in California with clean potable water from the ocean could be very effective, it
Though conservation is all and good, but the option of desalination has a flashier appeal. Tap the Pacific Ocean. Pump water from the ocean, remove the salt and drink. State officials are evaluating 15 proposed desal plants, and the largest such facility in the Western Hemisphere will open in Carlsbad this year.
First of all desalination is very expensive. I uses a lot of electricity and would have to be running constantly to be a reliable source of water. Although it would work giving people more fresh water the cost would be much higher just making clean water. That would either make water prices higher or taxes higher. Either way the cost will go up and people will not be happy. To explain better
By 2040, the global population is estimated to be over 9 billion people (“World Population”). This should be a startling fact when considering the limited and relatively small percentage of freshwater sources. According to the United Nations there is technically enough freshwater sources to support a global population of 7 billion (“Water Scarcity”), but still due to water waste, mismanagement, and lack of infrastructure, 663 million (1 out of 10) people lack access to safe drinking water sources, not to mention people living in areas of physical water scarcity (“25 Years”). “Water scarcity already affects every continent” (“Water for Life”). Due to the dramatic increase in global population, rapid industrialization, and urbanization the importance, value, and demand of water has also increased. (Gnaneswar Gude) As reported by the United Nations, just in the last century alone, water usage has grown more than twice the rate of population growth (“Water for Life”). By 2025, nearly 2 billion people will be living in regions with absolute water scarcity (“Water for