1 / 5

UNIT

UNIT. Human interaction with the environment. 9. WATER DESALINATION. Biology and Geology 3. Secondary Education. Water desalination. UNIT. Desalination. SALT WATER. DRINKING WATER. 9. What is the desalination of water?.

debrahd
Download Presentation

UNIT

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. UNIT Human interaction with the environment 9 WATER DESALINATION Biology and Geology 3. Secondary Education

  2. Water desalination UNIT Desalination SALT WATER DRINKING WATER 9 What is the desalination of water? Desalination is the process where drinking water is obtained from sea water or brackish water. Biology and Geology 3. Secondary Education

  3. Water desalination UNIT 9 What does the desalination of water consist of? It consists of separating the salts dissolved in the water by means of two types of procedures: • Thermal procedure: by means of evaporation of the water, leaving the salts behind. Pure water is then obtained by condensation. • Filtration procedure: by means of membranes which allow the water through but not the salts. Biology and Geology 3. Secondary Education

  4. Water desalination UNIT 9 Where is desalination carried out? • Desalination is carried out in desalination plants. • Desalination plants are located mainly in coastal areas or near sources of brackish water where freshwater resources are very scarce. • The desalination process is carried out around the world, and is particularly important in countries such as Saudi Arabia, the United States and Europe, particularly Spain (Canary Islands, Balearic Islands, Iberian Peninsula, Ceuta and Melilla). Biology and Geology 3. Secondary Education

  5. Water desalination UNIT 9 What are the advantages of desalination? • It reduces the extraction of water from continental aquifers. • Water suitable for irrigation is obtained, which avoids the use of continental water resources. • Freshwater is obtained to replenish continental aquifers of great environmental value. • It is a cheaper option than transferring water from rivers to coastal areas. Biology and Geology 3. Secondary Education

More Related