Analysis And Comparisons Of Many Water Supply Alternatives For North West China

1177 Words Jun 3rd, 2015 5 Pages
Analysis and comparisons of several water-supply alternatives for North-west China

Introduction:
The world’s semi-arid and arid regions are located mainly in North Africa, the Middle East, as well as South Asia. There are also isolated arid areas in Australia, parts of South America and the southern part of North America (Clarke, 1991, p.13). In this report, the problems of arid regions in China will be studied and analysed. The reasons for choosing China as a research target are because the rapid development of industries in China, has led to increasingly serious issues of climate conditions. Overall, the arid and semi-arid regions in China are getting bigger as time moves on. According to a report (Milker), the arid rangeland of China
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96000 people were forced to be resettled and there was a loss of some fish species. Most Indian inhabitants were not compensated for 45 years which caused a very bad feeling between government and citizens. As for the benefits, 1,400 farms have been irrigated; there is a big water source for industry and urban areas. Furthermore, huge profits have been made from hydroelectricity, which has a capacity of 6,809 megawatts of power. Overall, precise plans and calculations should be done before making the decision to build a dam.

2. Desalination
Desalination refers to various types of technical processes; the aim is to remove salts from seawater (Banat). In these processes, a series of very highly technical equipment will be required, which means demands on technology for the target region. The most noticeable benefits from desalination are it can provide accessible drinking water. Another factor for desalination plants is even in countries or regions where there is ample fresh water, desalination plants can provide water to drier areas through pipelines, or can be used in times of drought. However, it is very costly to build and manage or operate these desalination plants. According to the data from EHOW, the cost for building a plant can be from $300 million to $2.9 billion as of 2008, depending on the location. (Ackerman).What’s more; more costs will be incurred during the operation, as it requires a huge amount of energy.

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