The mainstream technology of seawater desalination

Reverse osmosis membranes have become the mainstream technology in the field of seawater desalination

In the Middle East, desalinated seawater is an important supplement and alternative to conventional water resources. The Tawil desalination project in the United Arab Emirates adopts reverse osmosis desalination technology, with a daily output of 900,000 tons of water, which is the largest reverse osmosis desalination project in the world.

China is a country with a serious shortage of water resources, and the development of seawater desalination technology and the development and utilization of seawater resources are an important way to solve the problem of water shortage in China and an important guarantee for the sustainable development of China's coastal economy and society. With the great attention and support of the state, China's seawater desalination has experienced a development process from scratch and gradually growing. At present, the seawater desalination policy system has been gradually improved, the independent technology is basically mature, and the industry has begun to take shape.

Since entering the 21st century, reverse osmosis technology has been widely used in the fields of deep processing of water supply, sewage resource treatment, seawater desalination treatment, etc., and its main advantages are as follows:

1. The reverse osmosis membrane has strong desalination capacity, which is generally stable at more than 90%, and the pure water prepared has low operating cost and good energy saving and emission reduction effect.

2. The reverse osmosis membrane can effectively remove microorganisms, organic matter, such as metal elements and other inorganic substances, and the effluent quality is better than other methods.

3. Follow-up processing equipment can reduce the burden and prolong the service life.