Seawater Desalination Research Paper

According to David Sedlak, we have made large progress in seawater desalination for the past 2 decades. The largest seawater desalination plant in the Western Hemisphere that is built north of San Diego uses half of the energy use than Santa Barbara 25 years ago. One reason why Sea Water is a good way to save more groundwater because we do not have a lot of water, but lots of oil. Also seawater desalination is not always good, there is a negative side. It is energy intensive; that means that it will cause a lot more climate change, but that is the only negative thing David Sadlak had mentioned about seawater desalination; but so far the new seawater desalination plant uses half the energy it used to. This would help California because it would lower the amount of water that is pumped from the ground, therefore, seawater desalination is a possible solution for conserving more

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

The disadvantages of desalination is that in order for a desalination plant to be a viable alternative to the water supply dam, the users must be located fairly close to a coast or large source of oceanic water. The desalination technology can also have adverse environmental impacts of its own. The plants are very energy intensive and must dispose of a highly concentrated saline byproduct into the ocean, which can cause adverse affects to marine life in the surrounding and exceeding areas. Waste brine can also

Perth Seawater Desalination Plant- With the official opening of the Perth Seawater Reverse Osmosis Plant in November 2006, Western Australia became the first state in the country to use desalination as a major public water source.

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

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).

Desalination has been used for hundreds of decades, Greek sailors heated water to evaporate fresh water away from the salt and other minerals, and the Romans used some clay filters to trap salt. Today's urbane methods still mostly use the concepts of distillation or filtration. The procedure of desalinating sea water to produce drinkable fluid has a long and gorgeous history. Nevertheless, the first significant modern desalination process to perform was multi-stage flash distillation type (MSF) it is a process that originally started during the mid-20th century in the USA (1955). Moreover, even though multi-effect distillation had been revealed and had the potential to be more effective than multi-stage flash desalination (MSF), it took a

As world population increases along with demand for clean water desalination will become an increasingly important part of our water supply in the 21st century. We will not run out of water but we will pay more for receiving it in potable

The total amount of fresh water resources due to climate changes causing glaciers retreated, reduced river flows and shrinking lake has decreased. Many of the aquifers (underground water) that were quickly exhausted aren’t substituted at the same speed. Although total fresh water resources have not been consumed, they become very polluted, salty, unsuitable or unavailable for drinking, industrial and agricultural usages. To avoid a global water crisis, governments are looking to find ways to make better use of water. Water desalination has become a technologically and economically viable solution to tackle the challenges associated with increasing water shortages existing all over the world [`1,

Due to the industrial revolution and the increasing in the world population, which leads to water scarcity of potable water and water for industrial applications. To cover the increasing demand of water we have to treat the polluted or saline water using the separation techniques to produce the potable and industrial water. This process it’s called, Water Desalination. Water Desalination is the process that treats the raw water by removing the suspended solids from the water. Sustain or the feed water sources may incorporate briny water or brackish water, seawater, ground water from wells, surface water (rivers and streams), wastewater, industrial feed and process waters. Desalination of seawater has the ability to produce enough amount of

Southern Queensland is implementing a recycled water system valued at 2.5 billion dollars. It consists of Class A purified water output that is then installed optionally through homes. Comments from homes using recycled water have reflected how the difference is barely noticeable and in some cases, the

Approximately 75% of the Arab population live below the water scarcity level, half of them live under the level of 500 m3/cap./year (UNISCO 2015, p78). Some argue that people live in this region can rely on groundwater. However, groundwater is already exhausted and under high pressure by the growing population. Moreover, boreholes and wells are vulnerable to quality reduction, pollution and seawater infiltration (Alghariani 2003). Accordingly, people should depend on desalination as a reliable and practical alternative. For Example, recent estimates indicate that up to 25 million m3 of desalinated water produce daily worldwide, of which almost two-thirds the production and 77% of all Desalination plants located within countries of the Middle East and North Africa (Lattemann and Höpner 2008). Another example, Qatar is an Arabian country with nearly no water (74 mm/year of precipitation rain). However, the water consumption in this country considered among the highest (430 L./cap./year) worldwide, and almost all water come from Desalination (Al-Attiya 2012). In short, for water scarcity regions such as Arab region, desalination will be the best sustainable and secure source of

As the drought bakes its way toward a fourth year, the state has a string of secret weapons in the works that could supply millions of gallons of new drinking water and help stave off disaster: desalination plants.

Desalination is making dirty or unsanitary water potable. One way to desalinate water is by using a seawater desalination plant (taking the salt out of sea water) how this works is by using an intake pipe which travels to the plant from the ocean, then there is a screening plant which takes out large things like seaweed, then they add substances to help with the coagulation to bind smaller particles together to create larger ones to go to the next stage which is the dual media tanks. Dual media tanks are large tanks that have a layer of coal and a layer of sand the water filters through these layers filtering out large particles, then it goes through a large cartridge that contains little straws with small holes at which the water is pushed

The current method used to desalinate water is multi-stage desalination (thermal desalination), which requires a significant amount of energy. As research has shown, for every cubic meter of desalinated water, 1.3 kWh of electricity and 48.5 kWh of heat are consumed [1] which shows that more than 90% percent of the energy supplied is wasted as heat. Furthermore, the current methods utilize non-renewable sources of energy, which eventually produce greenhouse gases such as carbon dioxide. These non-renewable sources of energy, mainly fossil fuels are short in supply and eventually will run out. Therefore, it is important to look for an environment-friendly long-term solution.