The seawater contains a high level of salt which makes it no good for drinking as too much salt can harm your health. Because of this, it is necessary to filter the seawater through desalination process. Desalination process provide clean water by removing the salt content and removing other content that makes the water unfit for drinking like chemicals, solids and bacteria. Reverse osmosis is currently the most popular method for filtering seawater because this desalination process has been proven to remove 95% – 99% of salt, brine and other materials.

The salt water or brackish water is first pre-treated so that it does not contain heavy solids that can destroy the pores in the membrane. The tiny pores in the membrane will effectively block the salt and other particles from going through into the other tank where fresh water is being stored. The membrane is made from synthetic materials. It consists of several layers including membrane sandwiches, layer fills with a lot of pores, and mesh spacer.Image result for What are the Advantages of Seawater Desalination

After the water passes through the reverse osmosis process, the brine concentrated waste water will be disposed. The brine solution will get treated through the addition of chemicals. It will be mixed with water before being disposed into the ocean. In the post treatment stage, lime is added into the water. The desalinated water meets the strict standards determined by the water guidelines of the world health organization. The quality of the water is first tested before it is being released into the reservoir.

Desalination projects have been carried out around the globe to address water shortage problems. Desalination projects can help to reduce the impact in case there is a forecast of a drought that can last for a few years. Desalination is important because many places in the world lack access to clean water. Survey shows that there are about 780 millions people who don’t have access to clean drinking water. Without clean water, people will contract diseases and die. It is estimated that there is at least 3.6 millions people that die due to lack of access to clean water.

Research and development are underway to reduce the cost and lower the energy requirement for implementing the desalination technology. The research and development ensures allows greater operational efficiency in the desalination system to be achieved. Currently, there are over 16,000 desalination plants being built around the globe.

A large scale desalination company has been built in Carlsbad to lower the carbon footprint in the environment. It ranks on the number one position as the largest desalination plant in the western hemisphere. For the Carlsbad desalination project, about 132,000 linear feet of pipe has been built. The pipe length is about the length of 14 times the length of the Golden Gate Bridge.

Carlsbad desalination built is build near to the Encina Power Station to makes it easy for grouping utilities. To save energy used in the desalination process, they have installed 144 energy recovery devices at the Carlsbad desalination plant. The installation of the energy recovery devices is estimated to be capable of reducing the energy consumption by 46%.

Related Posts