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Reverse Osmosis & Water Treatment in China

China (officially the People's Republic of China or PRC) is one of the major nations of the world, with the largest population (one-and-a-third billion people or about one-fifth of the world's population) and the fourth largest land area (after Russia, Canada and the United States), and one of the oldest histories of continuous cultural and political history.

China has a very diverse topography with mountains, high plateaus, and deserts in the west; and, plains, deltas, and hills in east. It's climate is equally diverse, ranging from troptical in the south to subarctic in north. The world's tallest peak, Mount Everest on the border between China and Nepal.

While enjoying its rapid economic development, China has been facing increasingly severe water scarcity.  With low per capita water availability at local areas particularly in the northern part of the country, rising water consumption has led to over-withdrawal of both surface water and groundwater in this region with serious environmental consequences such as ground subsidence, salinity intrusion, and ecosystem deterioration.  Meanwhile, continuous water pollution makes the situation even worse by degrading the quality of the limited available clean water.  Water shortages and water pollution are reinforcing each other, threatening China’s food security, economic development, and improvement of quality of life. 
 
Distribution of scarcity 
China’s water resources are spatially distributed with temporal variations.  Water resources in China are geographically divided into nice major river basins, including Yangtze, Yellow (Huang), Hai-Luan, Huai, Song-Liao, Pearl, Southeast, Southwest, and Northwest (Figure 1).  Accounting for inter-year variation, the total volume of annual internal renewable water resources in China, on average, is estimated at approximately 2,812 billion m3 per year, which includes both surface water and groundwater. 
China’s surface water is recharged mainly (around 98%) by precipitation.  While generating the spatially uneven distribution of water resources, the spatio-temporal pattern of precipitation further reinforces the spatial distribution of water by introducing a spatially heterogeneous temporal variation. Affected by a strong monsoon climate, the annual average precipitation in China gradually decreases in a spatial gradient from more than 2000 mm on the southeastern coastline to usually less than 200 mm at the northwestern hinterlands.  The ratio of maximum to minimum annual precipitation recorded may exceed 8 in northwestern China, but only ranges between 2 and 3 or less than 2 in southern and southwestern regions.  In most areas of the country, precipitation within four consecutive months at maximum approximately accounts for 70% of its annual total amount.  This spatio-temporal pattern of precipitation indicates varying risk of floods and droughts across the country. 
 

The World Bank reports that at least 80 countries have water shortages and 2 billion people lack access to clean water. More disturbingly, the World Health Organization has reported that 1 billion people lack enough water to simply meet their basic needs, unfortunately in many countries water is scarce or contaminated.

Pure Aqua provides wide range of filtration and economical solutions based on the China’s water resources.

China’s main water resources are:

  • Surface water “is water from river, rain water, lake or fresh water wetland, which can be treated using different methods, such as Ultrafiltration SystemsMedia Water FiltersBrackish Water RO.
  • Desalination can be used for water from ocean, or sea source, which can be treated using Sea Water Reverse Osmosis SystemsDesalination Systems
  • Ground Water or brackish water is from water located in the pore space of soil and rock “Borehole well”, which can be treated using Reverse Osmosis Systems, Media Water FiltersChemical DosingUV Sterilizers.
  • Government water supply, which could have high level of hardness or high level of chlorine, can be treated with Water SoftenersMedia Water Filters

Pure Aqua manufacture water treatment systems that meets the World Health Organization requirements.

 

 

 

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