Fresh Water
1. Introduction
Fresh water is an indispensable resource for human livelihood, agricultural irrigation and economic development (Brooks, 2007). However, due to the rapid population growth and the limited reserves, increasing regions have faced serious scarcity of fresh water (Williamson, 2010). Saudi Arabia is one of the driest countries in the world (CIA, 2011). According to World Bank (2011), the world average fresh water consumption is nearly 7000m³/year/person, while the water resource per capita in Saudi Arabia is less than 1200m³/year/person. In order to satisfy the demand for water, Saudi Arabia currently supplies fresh water via deep drilling of fossil groundwater (UNESCO, 2009). Nevertheless, society increasingly recognises that those water resources are non-renewable and are liable to be reduced by the overexploited boreholes and wells. Thus Saudi Arabia needs to find alternative and sustainable methods to solve these issues. Since there is abundant sea water around Saudi Arabia, large-scale desalination could be the ideal solution to water scarcity. However, the expensive cost and the detrimental influence on the environment might limit the scale and sustainability of this method. Due to the cheap cost and the minor environmental damage, wastewater reuse is regarded as another potential solution. However, it seems to have a low social acceptance.
Therefore, this report will compare the feasibility of desalination and water reuse in terms of cost, social acceptance and environmental impacts, thereby exploring the most suitable method to deal with the scarcity of water in Saudi Arabia.
2. Background
Saudi Arabia is located in the Middle East, bordering the Persian Gulf and the Red Sea (CIA, 2011). It is famous for the abundant reserves of oil and gas. However, the fresh water resources in Saudi Arabia are very limited. According to World Bank (2011), there is no one river and lake with perennial water throughout this country.
Fresh water is an indispensable resource for human livelihood, agricultural irrigation and economic development (Brooks, 2007). However, due to the rapid population growth and the limited reserves, increasing regions have faced serious scarcity of fresh water (Williamson, 2010). Saudi Arabia is one of the driest countries in the world (CIA, 2011). According to World Bank (2011), the world average fresh water consumption is nearly 7000m³/year/person, while the water resource per capita in Saudi Arabia is less than 1200m³/year/person. In order to satisfy the demand for water, Saudi Arabia currently supplies fresh water via deep drilling of fossil groundwater (UNESCO, 2009). Nevertheless, society increasingly recognises that those water resources are non-renewable and are liable to be reduced by the overexploited boreholes and wells. Thus Saudi Arabia needs to find alternative and sustainable methods to solve these issues. Since there is abundant sea water around Saudi Arabia, large-scale desalination could be the ideal solution to water scarcity. However, the expensive cost and the detrimental influence on the environment might limit the scale and sustainability of this method. Due to the cheap cost and the minor environmental damage, wastewater reuse is regarded as another potential solution. However, it seems to have a low social acceptance.
Therefore, this report will compare the feasibility of desalination and water reuse in terms of cost, social acceptance and environmental impacts, thereby exploring the most suitable method to deal with the scarcity of water in Saudi Arabia.
2. Background
Saudi Arabia is located in the Middle East, bordering the Persian Gulf and the Red Sea (CIA, 2011). It is famous for the abundant reserves of oil and gas. However, the fresh water resources in Saudi Arabia are very limited. According to World Bank (2011), there is no one river and lake with perennial water throughout this country.
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