Weifang evening news: Tianwei membrane electrodialysis seawater desalination technology can produce 0.5 tons of fresh water from 1 ton of seawater.
Release time:
2015-12-18
According to Weifang News Network, December 16, 2015, the 6th "Blue Economy Everyone Talk" event, co-sponsored by Dazhong Press Group and the Propaganda Department of the Weifang Municipal Committee of the Communist Party of China, and undertaken by Weifang Binhai Economic and Technological Development Zone, will be held on December 16. The morning opened in the coastal area. On December 15th, leaders, experts, guests and more than 70 reporters from more than 50 media including Xinhua News Agency, Guangming Daily, CCTV, China Daily, Volkswagen Daily, etc. gathered in the coastal area and collectively visited Weifang Binhai New Energy Vehicle R & D and Testing Center, Shandong (Weifang) Public Training Base and Weifang Port.
In the workshop of Shandong Tianwei Membrane Technology Co., Ltd., Liu Juntong, the company's marketing director, pointed to a machine with a square shape and many interfaces around it and told reporters that this is a homogeneous membrane electrodialyzer developed by the company itself. This machine can be used to turn seawater into fresh water on the ship. "If the homogeneous membrane electrodialyzer is installed on the ship and one end is connected to the sea, the machine can leave the fresh water and salt water and provide pure water that can be directly drunk. The secret of this is the ion exchange membrane." Liu Juntong said.
In order to give reporters a more intuitive impression, Liu Juntong picked up all ion exchange membranes similar to white cardboard and explained the magical transformation from seawater to fresh water on the spot. A membrane can "eat dry and squeeze out" the sea water, and the reporters at the scene unanimously "worshipped". According to reports, the uniform ion exchange membrane is a typical marine new material. The marine element bromine is introduced. By controlling the reaction conditions, the precise control of the bromination position and the degree of bromination is realized, and the sodium ions and chloride ions in the seawater are promoted. Separation, so as to achieve the effect of seawater desalination. "We call this process electrodialysis seawater desalination. Through this technology, one ton of seawater can produce 0.5 tons of fresh water." Liu Juntong said.
In Tianwei Film Company, there are many high-performance series of charged membrane materials and their application key technologies. "It can not only desalinate seawater, but also treat high-acid and high-alkali wastewater. The acid or alkali recovery rate in the wastewater reaches 90%." Liu Juntong said that if 10 tons of acid were used for production in the past, one ton can be used now. The input cost has been reduced, the environmental protection problem has been solved, and the enterprise benefits have come up. One "input account" has become two "benefit accounts".
Guangming Daily reporter Liu Caihua was firmly attracted by the high-tech products of Shandong Tianwei Film Technology Co., Ltd., touching the high-tech Tianwei film with both hands, full of curiosity and expectation. "When I came to Binhai, I felt like I was in Qingdao High-tech Industrial Development Zone. There was a kind of innovation and vitality everywhere, which gave people unexpected surprises." Liu Caihua said that he has been to Weifang before, but it is the first time he has come to Binhai. Although many projects are still under construction, he can already see the potential and charm of this blue coastal city, and it is destined to achieve greater Breakthrough and development.
"The development of the blue economy in the coastal area can have more exchanges with Qingdao and achieve better cooperation and development between the two sides." Liu Caihua said.
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