Volume 3, Issue 4, 2021, Page 73 - 81
Author(s) :
Unes kamali Far 1 , Mahnaz Mirza Ebrahim Tehrani 2 , Samaneh Kamali Far *3
1 PhD student in Environmental Management, Azad University, North Tehran Branch, Tehran, Iran
2 Assistant Professor Department of Environmental Management, Islamic Azad University, North Tehran Branch, Tehran ,Iran
3 lecturer Of University Department of Accounting, Technical and Vocational University (TVU),Tehran, Iran

Abstract :
Desert and semi-arid climates and the reduction of rainfall and frequent droughts have created a major water shortage challenge in the country's water-scarce areas, which is a threat to various sectors, including industry and agriculture. The need to transfer seawater to these areas is important and will have many benefits for the residents of these areas. Seawater desalination is a solution to water shortages in countries around the world. Due to the crisis of water resources in Iran, the use and development of this technology is very necessary to supply the water needed by the country. In this article, first the necessity of using desalination technology and then different desalination methods such as reverse osmosis, evaporation, thermal and solar were discussed. Unbalanced distribution of population, resources and facilities is one of the consequences of water scarcity and water mismanagement in most arid regions of Iran, which has naturally caused macrocephaly and uneven growth, and therefore the need to transfer seawater to low rainfall and arid regions, for Managers are considered a completely strategic matter. In this descriptive-analytical article, the documentary-library method has been used to collect information.

Keywords :
desalination, thermal desalination, membrane desalination, solar desalination, water crisis