Compared with the traditional water treatment methods, membrane water treatment has many advantages such as low energy consumption, simple process, stable operation and high effluent quality, and has been widely applied in many fields. With the guideline of environmental protection changing to "quality", the wastewater discharge targets will be tightened. The membrane water treatment industry will still maintain a rapid growth of over 20%. The annual output value is expected to increase from 85 billion in 2015 to the end of the "13th Five-Year Plan" About 200 billion. In the next five years, the water treatment membrane will steadily rise to hundreds of billions of nuggets After 50 years of development, China's membrane industry has gradually matured from immature. In the recent 15 years, the entire industry has enjoyed rapid growth. The total industrial output value (the total value of film products, membrane modules, membrane auxiliary equipment and related projects) rose from 200 million yuan in 1993 to 100 billion yuan in 2015, accounting for 85% %, The output value of the membrane membrane water treatment industry in 2015 was 85 billion. Membrane technology gradually matures and prices fall, along with the increasingly stringent environmental standards and public awareness of environmental protection, membrane technology in the country more commercial applications, the current put into operation or under construction in the million-ton MBR urban sewage treatment The system has reached hundreds. Relative to the traditional methods of wastewater treatment, membrane separation technology in the operation, involving pressure, concentration and potential gradient aspects of content, because the mixture is composed of multi-component, it can be used to selectively membrane Of the infiltration, and the use of chemical potential difference as the driving force, in order to achieve the mixture of gas, liquid separation and purification. In the process of modern industrial wastewater treatment, membrane technology has been widely used as a new hybrid separation technology, which not only can effectively purify waste water, but also can effectively remove pollutants and recover useful substances. At the same time, the application of membrane technology enables the separation, purification and concentration of the different components of the feed liquid, ie membrane separation. Films can be molecularly separated as compared to traditional filtration techniques, a physical process that does not require phase change or addition of additives. Membrane pore size micron, according to the different pore size, the membrane can be divided into microfiltration, ultrafiltration, nanofiltration and reverse osmosis membranes, and according to the material will be divided into inorganic and organic membranes. For inorganic membranes, there are mainly microfiltration membranes; for organic membranes, it is mainly made of polymer materials, such as cellulose acetate, polyether sulfone and polyfluoropolymer. According to public information, membrane water treatment industry chain consists of membrane materials research and development, production of membrane modules, membrane water solution complete sets of solutions, operations and maintenance. The membrane water resources of the overall solution also covers the process, bidding, detailed design, system integration, construction and installation, system testing, technical support and after-sales service processes. Among them, the membrane material / membrane element manufacturing and research and development in the entire industrial chain has a higher technological advancement and profitability. At present, the field of domestic membrane water treatment membrane components sales, membrane module sales, EP, EPC, BT, BOT, PPP, BOO and other business models exist side by side. Some powerful enterprises tend to move from the mere production or sale of membrane components or membrane modules to the more comprehensive business models such as EPC, BOT and PPP, so as to not only improve the overall performance of the membrane-based water treatment solution, but also Accelerate business growth, increase business revenue and profits. In fact, due to the rapid growth of market demand in recent years, international brands have entered China and seized the market. Compared with domestic enterprises, international brands in the scale of production, technological superiority, capital strength and management philosophy has a comparative advantage. At this stage, the domestic membrane water treatment industry practitioners can be divided into three leading companies in the world, the leading domestic enterprises and domestic small businesses. Based on this, the market generally pointed out that during the "13th Five-Year" period membrane-based water treatment industry output five-year compound growth rate probably fall between 10-15%, if calculated at 13%, by 2020 China's membrane water treatment industry market Scale will reach 160 billion yuan. A similar view comes from "China's membrane industry," Thirteen Five "strategic development plan. It is clearly stated that the output value of functional film in the 13th Five-Year Plan period will double on the basis of the 12th Five-Year Plan with an average annual growth rate of about 20%. At the end of the "Thirteenth Five-Year Plan" period, the output value of functional membranes will exceed 250 billion yuan and the export will reach 10 billion yuan / year. During this period, a batch of leading enterprises will be fostered and 5 super-enterprises with annual sales revenue of 5 billion to 10 billion yuan will be established. RO membrane technology Fully reached the international advanced level, the desalination RO membrane domestic market share of 30% -50%, microfiltration membrane and ultrafiltration membrane to achieve a new breakthrough in the quality of the domestic market share of 60% to 80%. The output value of China's membrane in 2014 is about 73.5 billion yuan, corresponding to three times the growth potential by 2020, with an average annual growth rate exceeding 27%. Many people in the industry pointed out that the vast market space and localization of local membrane components under the lead is expected to take the lead in benefiting.
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