How to Deal with Having Scarcity of Usable Water Resources

Introduction In countries where available water resources are scarce, the water circulation requirements are very important. The author quotes some examples that support this statement. Many countries carefully adjust water conservation, including the use of secondary wastewater in the US and Israel's agricultural activities. Meanwhile, Japan and some European countries recycle urban wastewater for washing and other uses. Another example mentioned by the authors to promote the recycling of water is a famous new water that is used in Singapore and secondary effluent production of household sewage purified by membrane process.

In order to survive, there are also countries affected by the water crisis, as there are three important resources, available water shortage, drought and water pollution. The water crisis facing Egypt is primarily water pollution, which is one of the big problems facing the global environment, and one of the causes of the water pollution problem is that it is illegal to release pollutants into water bodies There is no thing. (Caroline, 2009) Egypt has signed an agreement with the other 10 countries to share the water of Nile to provide fresh water for agriculture, industry and human consumption. Unlike other countries at the edge of the river system, Egypt enables large-scale management of how the upstream country uses the water resources of the Nile. Due to the sudden increase in population and climate change, the proportion of water will decrease. (CASCART, 2007)

This is why water shortages are at the forefront of public health problems. According to FewResources.org, by the year 2020, an estimated 1.8 billion people will experience absolute water shortages, which means that little water can survive. Two thirds of the world's countries are dealing with water shortages. This means that water resources are limited or difficult to obtain. Five years later in 2025, about 50% of the world will face a serious water shortage. This is the top five countries currently dealing with extreme water scarcity.

Actual water shortages are due to insufficient natural water resources to meet the needs of the community, caused by insufficient management of adequate available water resources. According to the report of the United Nations Development Program, most countries have sufficient water to meet the needs of home, industry, agriculture and the environment, but the latter is widely thought that it is the cause of water shortage It will serve it in an understandable way. Approximately one fifth of the world's population currently lives in areas affected by a serious water shortage. Water resources, including the water resources necessary to function effectively in the ecosystem, are insufficient to meet the needs of the country and region. Dry areas frequently encounter material shortages