Write a report assessing the feastibility of dufferent techniques for Assignment

Write a report assessing the feastibility of dufferent techniques for providing fresh water to arid region of the world - Assignment Example Use of desalination process is applicable in most parts of the world with its feasibility being based on aspects energy and eco-friendliness. On the other hand, rainwater harvesting is suitable in those areas that are agriculture oriented and their rainfall distribution can allow for runoffs. Most parts of the Middle East meet its viability. Desalination is the process of eliminating that solid material that has dissolved in water especially salts and other lifeless variety. Desalination takes place in the normal natural setting as water evaporates from the seas, lakes, and oceans to move upwards, precipitate, and form clouds. Historical descriptions and records, including the setting of some of the earliest Greek philosophers reveal that humanity has been using desalination since long ago to come up with drinking water. The arid situation in some parts of the world has contributed towards the increased use of desalination to create fresh water that can enable them carry out various purposes with it. Studies reveal that desalination technology is used in about 125 countries globally, with the United States leading in its application (National Research Council, 2004, p.12). Several desalination know how are used in different parts of the world to remove salt from seawater. The type of technology used is dependent on some factors such as quality of the water source, anticipated purpose for the water being desalinated, size of the plant, capital, and energy charges and the possibility of energy reuse. In desalination process, thermal technologies are used to heat seawater, which then evaporates forming vapor. The vapor is then condensed to become fresh water. The use of thermal technologies was common many decades ago. From 1950, there was a shift from thermal use to use of membranes to desalinate brackish water (Escobar and Schafer, 2009, p. 10). The Middle East is among the main users of