Research on my country's Hollow Fiber Membrane Technology and Industrial Development Strategy

Hollow fiber membrane technology is one of the common key technologies to solve major problems such as water resources and energy crisis and environmental pollution facing the world.
It is also an important technology for achieving high-quality development such as energy saving and emission reduction, cleaner production, system efficiency and product quality improvement.
Support
.
This paper systematically analyzes the strategic needs, status quo and trends of the development of hollow fiber membranes, points out the main problems and future innovation priorities of China's hollow fiber membrane technology in various sub-fields, and clarifies the development goals for 2025 and 2030
.
The research puts forward the key tasks and requirements of hollow fiber ultra/microfiltration membranes, high-quality hydrophobic membranes, new membrane technology, and waste membrane recycling, and provides four aspects from talent management, innovation investment, industry norms, and international cooperation.
The safeguard measures are proposed to provide a reference for the high-quality development of China's hollow fiber membrane industry
.
? 1.
Introduction Hollow fiber membrane is a new type of membrane technology product formed by the intersection of functional fiber materials and separation membrane technology.
It has the advantages of high packing density per unit volume, large filtration area, small footprint, and relatively low cost.
It has become a field of separation membranes.
A new type of membrane technology product with the fastest growing, largest scale and highest output value
.
Hollow fiber membrane technology has become a common key technology in the fields of environmental protection, resource recovery, new energy industry, and an important common support for the upgrading of traditional industries (see the figure below).
It has been listed as a key priority development direction by developed countries.
It is also a strategic emerging industry in China.
The key components of the scientific and technological innovation development plan, such as high-performance separation membrane technology, are included in the "Made in China 2025" key project
.
This paper studies the development status of hollow fiber membrane technology and industry at home and abroad from multiple dimensions such as membrane materials and application technology, analyzes the key issues, technical and policy bottlenecks faced by China's hollow fiber membrane technology and industrial development, and clarifies the hollow fiber membrane technology and industrial development.
Key tasks and suggestions for measures
.
By summarizing and analyzing the development trend of China's hollow fiber membrane technology and industry, it provides scientific advice for achieving high-quality development of related technologies and industries in China
.
?? 2.
Hollow fiber membrane technology and industry development demand analysis (1) The development of hollow fiber membrane technology is an important measure to ensure my country's water security.
Water scarcity and water pollution have become a bottleneck restricting social progress and economic development. .
More than two-thirds of China's major cities lack water, and the total annual water shortage exceeds 4×1010 t
.
At the same time, China’s annual sewage discharge exceeds 7.
5×1010 t, and less than 15% is effectively treated and reused, causing serious water waste and water pollution problems
.
Membrane separation technology is recognized as the most effective technical means to realize the recycling of sewage and ensure the safety of drinking water
.
With the improvement of China’s domestic drinking water sanitation standards and the continuous improvement of urban sewage and industrial wastewater discharge standards in recent years, the upgrading and transformation of water plants and the upgrading and transformation of sewage/wastewater treatment plants will enter a period of rapid development.
Industrial development brings new opportunities and new requirements
.
(2) Hollow fiber membrane technology is an important support to promote the upgrading of traditional industries and the development of emerging industries.
In recent years, the application range of hollow fiber membrane technology has rapidly expanded from water treatment to petrochemicals, medicine, biology, food, electronics, energy, and atmosphere.
Pollution control, aerospace, military and other fields, and gradually replace traditional separation technologies such as distillation, extraction, and adsorption, becoming an important support for the upgrading of traditional industrial technology and the development of emerging industries, providing energy saving and emission reduction, cleaner production, product quality and system efficiency improvement Innovative technical support
.
Therefore, the development of hollow fiber membrane technology is a strategic requirement to achieve high-quality development in many industries
.
(3) The innovative development of high-end technology and industry of hollow fiber membranes is becoming increasingly urgent.
After more than 50 years of development, China has established a relatively complete R&D and industrial system in membrane materials, components and devices such as reverse osmosis, ultrafiltration and microfiltration.
, Has a strong international influence and competitiveness; but there is still a gap between the basic and applied research of membrane science and the top international level, and there is still a big gap between the high-precision, high-performance, and special separation membrane products compared with the international first-class products.
The high-end film market is still monopolized by foreign companies
.
In the face of the lack of blockade or protection of key high-tech in developed countries, the need to promote China's hollow fiber membrane technology and industrial innovation and development is becoming increasingly urgent
.
? 3.
Analysis of hollow fiber membrane technology and industrial development at home and abroad In terms of production capacity and market scale, my country has become a major producer and application country of hollow fiber membranes
.
In 2018, the global hollow fiber membrane market reached 110 billion yuan, and continued to develop at a compound annual growth rate of 11%.
It will reach 245.
1 billion yuan in 2025
.
From the perspective of market regional distribution, the global hollow fiber membrane market is concentrated in Asia, North America, Europe and other regions
.
The main foreign manufacturers have a hollow fiber membrane Suez Environment Group, Koch Industries, DuPont, Asahi Kasei Group, Mitsubishi Rayon Co.
, Ltd.
, Toyobo Co.
, Ltd.
, Siemens AG and so on
.
These well-known companies account for more than 95% of the global high-end membrane separation market with their brand and technological advantages
.
The hollow fiber membrane market in China has grown steadily, reaching approximately 11 billion yuan in 2015, reaching 30 billion yuan in 2020 (accounting for 20.
7% of the global market and 50.
1% of the Asian market), and is expected to reach 60 billion yuan in 2025
.
In 2020, China has nearly 200 enterprises engaged in the research and development, design, and production of hollow fiber membranes, with a total production capacity of more than 1×108 m2/a.
However, there are only more than ten enterprises with an annual output value of more than 100 million yuan.
The output value and technical strength are comparable to those of foreign countries.
Compared with enterprises, there is still a significant gap
.
The following is a further analysis of the development status of hollow fiber membranes and the focus of subsequent research and development from the subdivision of hollow fiber membrane materials and membrane applications
.
(1) Analysis of the development of hollow fiber membrane materials 1.
Hollow fiber ultra/microfiltration membrane Hollow fiber ultra/microfiltration membrane is the membrane variety with the largest output, the most mature development, and the strongest market competitiveness in China
.
In 2018, the global hollow fiber ultra/microfiltration membrane market was about 93.
5 billion yuan, and by 2020 to 123.
2 billion yuan; in 2018, China's hollow fiber ultra/microfiltration membrane market was about 19.
6 billion yuan, and in 2020 it will reach 26.
79 billion yuan
.
The international hollow fiber ultra/microfiltration membrane industry production technology has basically matured, forming a market pattern with stable demand and full industry competition; developed countries and regions such as the United States, Japan, Europe, etc.
have developed high-performance hollow fiber ultra/microfiltration membrane products and technologies Leading in innovation
.
The dominant domestic hollow fiber ultra/microfiltration membrane companies include Beijing Bishuiyuan Technology Co.
, Ltd.
, Tianjin Motianme Technology Co.
, Ltd.
, Hainan Lisheng Water Purification Technology Industrial Co.
, Ltd.
, Yancheng Haipu Run Technology Co.
, Ltd.
, and Beijing Sino Membrane Technology Co.
, Ltd.
, Shandong Zhaojin Motian Co.
, Ltd.
, etc.
; through original innovation and technology integration, they have introduced new technologies, new processes, and new products with their own characteristics, which are widely used in large-scale water treatment projects at home and abroad
.
In the future, China should continue to strengthen its industrial and technological advantages in the field of hollow fiber ultra/microfiltration membranes, focusing on strengthening the green preparation technology of hollow fiber ultra/microfiltration membranes, research on new materials for special separation membranes, and high-performance hollow fiber ultra/microfiltration membranes.
Research on components and their integration technologies promote the digital transformation of the hollow fiber ultra/microfiltration membrane industry
.
? 2.
Hollow fiber nanofiltration membranes Due to the complexity of hollow fiber nanofiltration membrane preparation technology, high-performance hollow fiber nanofiltration membranes have not yet been industrialized
.
Foreign long been engaged in the development of hollow fiber nanofiltration membrane enterprise United States Koch Industries, the German Evonik Industries Group, Singapore Blue Ocean Machinery Co.
, Ltd.
and so on
.
The main body of research and development of hollow fiber nanofiltration membranes in China is based on universities and research institutes.
For example, Tianjin Polytechnic University and Tianjin Motian Membrane Technology Co.
, Ltd.
have cooperated to explore the industrialization of hollow fiber nanofiltration membranes, and have built annual production capacity.
It is an experimental production line of 4×105 m2, which realizes the continuous and stable preparation of hollow fiber nanofiltration membranes by the interfacial polymerization method
.
In the future, China should continue to accelerate the industrialization process of hollow fiber nanofiltration membranes, focus on the development and research of high-precision integrated continuous preparation technology and equipment for hollow fiber nanofiltration membranes, and strive to be the first in the world to realize the large-scale production of hollow fiber nanofiltration membranes.

.
? 3.
Hollow fiber reverse osmosis membrane China's hollow fiber reverse osmosis membrane lags behind similar foreign products in terms of research depth and application breadth
.
Reverse osmosis membrane separation technology has become the mainstream technology for seawater and brackish water desalination, pure water and ultrapure water preparation, and it accounts for more than 70% of the global seawater and brackish water desalination market
.
In 2019, the global output value of reverse osmosis membranes has exceeded USD 6 billion
.
my country is the world's largest consumer of reverse osmosis membranes, accounting for 26% of the world's total consumption
.
Japan’s Toyobo Co.
, Ltd.
is currently the only hollow fiber reverse osmosis membrane (cellulose acetate membrane) supplier in the world; Tianjin Motian Membrane Technology Co.
, Ltd.
has developed a hollow fiber reverse osmosis membrane experimental production line with an annual production capacity of 4×105 m2.
But the product separation performance still needs to be improved
.
In the future, China should continue to strengthen basic research on the synthesis and structural control of special polymer materials for hollow fiber reverse osmosis membranes, and carry out research on key technologies for the continuous preparation of high-performance hollow fiber reverse osmosis membranes and the theory of high-efficiency module filling technology
.
? 1.
Hollow fiber hydrophobic membrane hydrophobic membrane technology has become an important means for the separation and purification of resources, environment, new energy and traditional industrial materials.
It has shown a strong momentum of development in the field of biomedicine, and the corresponding application market has reached 10 billion U.
S.
dollars
.
Foreign countries have obvious technical advantages in the hollow fiber hydrophobic membrane industry.
The major hydrophobic membrane manufacturers include Sumitomo Electric Co.
, Ltd.
, Mitsubishi Rayon Co.
, Ltd.
, Minnesota Mining and Machine Manufacturing Company (3M), Merck Millipore, Gore and others
.
Foreign membrane technology and industry have gradually formed a research and development layout focusing on hydrophobic membrane microstructure control and super-hydrophobic membrane preparation, new membrane contactor design and process enhancement methods, and hydrophobic membrane process development for new application fields
.
Although the hollow fiber hydrophobic membrane industry in China started late, it has begun to take shape.
It has gradually established a technology and industrial chain from hydrophobic membrane research and development, industrialization to engineering application, and has initially formed a leading edge in the direction of super-hydrophobic membrane technology
.
In the future, China should continue to strengthen the research on the key technologies for the preparation of high-performance hollow fiber hydrophobic membrane materials, hollow fiber hydrophobic membrane modules, membrane processes and strengthening methods, equipment-integrated systems and key applications, especially the development of hollow fiber hydrophobic membranes in artificial lungs.
And other special research and development in the field of biomedicine
.
? 2.
Inorganic hollow fiber membranes Inorganic hollow fiber microfiltration, ultrafiltration, and nanofiltration membranes abroad have achieved large-scale production
.
In 2016, the global hollow fiber ceramic membrane market was US$99 million and is expected to reach US$200 million in 2025
.
The industrialized inorganic hollow fiber membranes abroad are mainly Al2O3 ceramic and stainless steel hollow fiber membranes.
The production and R&D enterprises are concentrated in the United States, Japan, and Europe
.
At present, China's inorganic membranes are mainly tubular membranes, and the core preparation technology and production equipment of inorganic hollow fiber membranes have not yet been mastered independently
.
Domestic inorganic hollow fiber membranes have not yet seen commercialized products, and there is a huge gap in the high-performance inorganic hollow fiber membrane industry
.
In the future, China should focus on strengthening inorganic hollow fiber membrane preparation technology and equipment, high-performance inorganic hollow fiber membrane new products and high-end application research, and inorganic hollow fiber membrane engineering application technology and equipment system development
.
(2) Analysis of the application development of hollow fiber membrane 1.
Water treatment application China has the world's largest hollow fiber membrane water treatment application market
.
The world's water treatment market has exceeded USD 1 trillion, and the scale of China's sewage treatment market during the 13th Five-Year Plan period has reached RMB 1.
39 trillion
.
The market share of membrane water treatment is growing rapidly.
Membrane separation technology represented by hollow fiber membranes occupies an absolute dominant position in the world membrane water treatment market and is growing rapidly
.
With the continuous decline of membrane material costs and the continuous improvement of process stability, countries such as Canada, Singapore, the United Kingdom, Australia, Israel and other countries have successively built ultrafiltration water plants of different scales; membrane biological reactions centered on lining ultrafiltration membranes The MBR technology has been widely used in the advanced treatment and reuse of municipal sewage and industrial wastewater due to its advantages of good effluent water quality, small footprint, and convenient operation control
.
In the future, in order to meet the requirements of high-quality development of the environment and resources, China should strengthen the study of membrane pollution theory and control strategies based on the interface process, develop new water treatment technologies for sewage recycling and energy conversion, and key technologies for healthy drinking water, and develop high-efficiency Modular membrane equipment to build a "smart water service" system
.
2.
Petrochemical applications Internationally, hollow fiber membranes have been widely used in the petrochemical field, in petroleum refining, oilfield produced water and petrochemical wastewater treatment, petrochemical products and derivatives production, pervaporation separation, high-purity gas preparation, etc.
Direction has a broad market
.
In China's petrochemical industry, hollow fiber membrane applications are concentrated in the treatment of oilfield produced water and petrochemical wastewater, organic solvent purification and recovery, and volatile organic compounds (VOCs) in gas separation
.
Domestic hollow fiber gas separation membrane enterprises involved in petrochemical applications mainly include Dalian Tianbang Membrane Technology National Engineering Research Center Co.
, Ltd.
, Dalian Ouke Membrane Technology Engineering Co.
, Ltd.
, etc.
, but the annual output value is small
.
In the future, China should strengthen research on hollow fiber special membrane materials, membrane technology and process in the direction of advanced petrochemical wastewater treatment and gas separation, and carry out the development of separation membrane modules, equipment and products to realize the resource utilization of petrochemical wastewater, gas separation, and organic gas.
purification and other liquid substances
.
3.
Biomedicine applications Hollow fiber membranes are widely used in biomedicine fields such as artificial kidney (hemodialysis), artificial lung (oxygenation membrane), separation of blood components, separation and purification of Chinese and Western medicines
.
The global hemodialysis market reached 80 billion U.
S.
dollars in 2019 and is expected to reach 101.
5 billion U.
S.
dollars in 2025
.
The scale of China's hemodialysis market was 33.
5 billion yuan in 2018, and it is expected to reach 112.
5 billion yuan by 2025
.
Internationally renowned suppliers of hollow fiber hemodialysis membranes include the German Fresenius Group, Baxter International Co.
, Ltd.
, Davita Health Co.
, Ltd.
, Japan's Asahi Kasei Co.
, Ltd.
, and Germany's MEMBRANA company
.
The companies engaged in the production of hollow fiber hemodialysis membranes in China include Shandong Weigao Group, Guangzhou Bain Medical Equipment Co.
, Ltd.
, Guangdong Baolight Medical Technology Co.
, Ltd.
, etc.
; domestic products account for about 40% of China’s hemodialysis membrane market share, but the core Technology and raw materials still originate from abroad
.
Extracorporeal membrane oxygenation (ECMO, or artificial lung), a well-known critical treatment device for the cardiopulmonary system during the new coronavirus pneumonia epidemic, has only more than 10 manufacturers in the world, including Meveco in Germany, Medtronic in the United States, and Solin in the United Kingdom.
Possess R&D and production capabilities, and there are still technical gaps in related fields in my country, which are in urgent need of breakthrough
.
In the future, China should strengthen the research on the raw materials and membrane surface treatment technology of hemo-compatible hollow fiber hemodialysis membranes, and support the technological innovation of hollow fiber oxygenation membrane technology and industry, and the technological innovation of hollow fiber membranes for drug separation and purification and precision separation
.
? 1.
Food and beverage applications.
In the past decades, the application of hollow fiber membranes in the food and beverage field has developed rapidly, involving the improvement of the quality and production efficiency of fruit juice beverages, dairy products, soy products, alcohol and other products, as well as the reduction of waste water and resources in the food and beverage industry.
recycling
.
The application of China's hollow fiber membrane technology in the food and beverage field is basically synchronized with that of foreign countries.
Mengniu Dairy (Group) Co.
, Ltd.
, Yili Co.
, Ltd.
, Bright Dairy Co.
, Ltd.
, Beijing Huiyuan Food and Beverage Co.
, Ltd.
and other large-scale beverage companies are all Membrane technology has been used to improve product quality
.
Compared with similar foreign products, the hollow fiber ultra/microfiltration membrane independently developed in China has a wider pore size distribution, poor separation accuracy, and poor anti-pollution performance; high-end hollow fiber ultra/microfiltration such as food and beverages with higher added value The membrane market is mostly occupied by foreign brands
.
In the future, China should strengthen the research on food-grade hollow fiber membrane materials and green preparation technology, high-precision anti-pollution hollow fiber membrane products, membrane coupling integration and separation technology
.
(3) Analysis of the overall research situation of hollow fiber membrane technology From the perspective of research papers and patents, China is already the world's largest research country for hollow fiber membranes
.
From 2008 to 2019, there were a total of 4,314 SCI papers related to hollow fiber membrane technology published globally, of which 1,476 were published in China, accounting for 34.
22% of the world's total, which is clearly ahead of other countries
.
However, in terms of the total citation frequency, the National University of Singapore ranked first, and Nanyang Technological University of Singapore ranked second; Zhejiang University, Tianjin Polytechnic University, and Chinese Academy of Sciences ranked fifth, sixth, and seventh respectively.
This shows that the quality of China's hollow fiber membrane technology innovation still needs to be improved
.
There are a total of 6,525 patent applications involving hollow fiber membrane technology in the world, and the top 20 organizations have applied for a total of 3,093, accounting for 47.
4% of all patents. .
In the ranking of hollow fiber membrane international patent applications, Japanese companies occupy the top five, and there are 8 Japanese companies in the top 20; China only has China Petroleum & Chemical Corporation (sixth) and Tianjin Polytechnic University (the sixth).
7) Enter the ranking
.
There are a total of 3150 Chinese patent applications in the hollow fiber membrane field, accounting for 48.
28% of the total global patent applications, but the patentees are mainly foreign companies, and the proportion of patents from domestic institutions is still at a disadvantage
.
4.
Problems in China's hollow fiber membrane technology and industry.
After more than 50 years of development, China's separation membrane technology and industrial development have made considerable progress, and a theoretical framework for the design and preparation of membrane materials suitable for national conditions has been established.
A series of membrane products with independent intellectual property rights and good performance have developed a series of membrane integration technologies and equipment
.
However, compared with the United States, Japan, Europe and other strong countries and regions in the membrane industry, China's hollow fiber membrane technology and industry still have obvious shortcomings, which are mainly manifested in the following four aspects
.
(1) The localization rate of membrane raw materials is low, and the quality of separation membranes still needs to be improved.
Main traditional membrane raw materials for preparing micro/ultrafiltration membranes, reverse osmosis, gas separation membranes, such as polyvinylidene fluoride (PVDF), polyethersulfone (PES), polysulfone (PSF), cellulose triacetate (CTA), polymethylpentene (PMP), etc.
The localization rate is low, and domestic raw materials are relatively large compared with foreign similar products in terms of molecular weight and distribution index control.
The gap, some materials are embargoed by foreign countries
.
Analysis of the reasons is that the collaborative innovation between China's membrane technology industry and the upstream raw material industry is insufficient, and the development of special polymer materials and investment in scientific research are insufficient
.
Therefore, China urgently needs to build a multidisciplinary collaborative innovation mechanism for polymer material development, polymerization reaction control, and separation membrane formation in response to membrane material needs, implement technological breakthroughs in the field of key separation membrane raw materials, and break the monopoly of foreign technology and products
.
? (2) The category of separation membranes is relatively single, and the key membrane technology products are blank.
There are few domestic membrane varieties, which are only concentrated in a single direction such as hollow fiber membrane ultra/microfiltration membranes.
The products are mostly used in low-value-added middle and low-end fields.
; Compared with similar foreign products, there are problems such as low quality stability, membrane separation accuracy, and anti-pollution performance that need to be improved. .
The market for membrane technologies and products such as blood oxygenation and special separation in China is still monopolized by foreign companies, which is a "stuck neck" link that needs to be broken through
.
To analyze the reasons, China has insufficient investment in the development of medical hydrophobic membranes and new membrane technology, lack of synergy between "production, study, research and application", and the transformation of innovation results is lagging behind
.
Therefore, in response to key applications and national strategic needs, China should flexibly form a "production-university-research" technology and industry collaborative innovation team, concentrate its efforts on scientific and technological research, and achieve technological and industrial breakthroughs as soon as possible
.
(3) Insufficient willingness for independent innovation, insufficient innovation vitality and capacity, lagging technology and product iteration.
Domestic companies have more products to track and develop, fewer independent innovation products, and fewer patents; insufficient protection of intellectual property rights, companies The lack of willingness for independent innovation has led to low market competitiveness of domestic membrane materials and extremely low market share in high-end markets; the "production, study, research and application" cooperation mechanism is not sound, R&D is severely disconnected from industrial needs, and there are obstacles to the transfer and transformation of results
.
Analyzing the reasons, the state's guidance and support policies for enterprise investment in scientific and technological research and development, and collaborative innovation are still insufficient, and the promotion and protection policies for the transformation of scientific and technological achievements need to be improved
.
(4) Standardized market management and standardization construction need to be improved.
China has obvious shortcomings in the overall development plan of the hollow fiber membrane industry and the standardization of industrial technology
.
The formulation of technical standards for the hollow fiber membrane industry is relatively lagging, the implementation of industrial standards is not in place, and the intellectual property protection and maintenance mechanisms are not sound
.
These problems have led to serious homogeneity of domestic products in the market, and they are mostly concentrated in the direction of low-tech products; product quality is uneven, and the motivation of enterprise innovation investment is insufficient, which has seriously affected the high-quality development process of hollow fiber membrane technology and industry
.
Five.
Hollow fiber membrane technology and industry development goals and main tasks At present, the key tasks in the field of hollow fiber membranes include: solving a series of "stuck neck" problems and developing forward-looking technologies, supporting original research and product development, and promoting applications Potential new membrane technology industrialization, use membrane technology to promote the upgrading of traditional industries and expand the application of membrane technology in emerging industries, and promote the implementation of supply-side structural reforms and high-end manufacturing strategies
.
? By 2025, focus on solving a series of "stuck neck" problems in the field of hollow fiber membranes, and initially form international competitiveness in terms of membrane raw materials, high-end separation membrane manufacturing and application; the hollow fiber ultra/microfiltration membrane industry will reach international leadership Level, achieve industrialization breakthroughs in the direction of some new membranes and special biomedical membranes; significantly improve the self-sufficiency rate of traditional membrane raw materials, develop new self-contained microporous polymer (PIM) materials, organic framework (MOF/COF) materials, and poly PMP, molecular sieve membrane materials, polyarylene sulfide and other special separation membrane raw materials and corresponding membrane technology and equipment
.
? By 2030, focus on the development of a series of forward-looking hollow fiber new membrane technologies, and realize the wide application of membrane technology in emerging industries; hollow fiber nanofiltration membranes and hollow fiber inorganic membranes will reach the international advanced level, gas separation, biomedicine and food The hollow fiber membrane technology for beverages and other fields has reached the international leading level; the digital transformation of the hollow fiber membrane industry will be realized, and a complete waste membrane recycling and reuse technology system will be established
.
? To this end, we suggest to focus on research work in the following four directions to support the development and industrial application of related membrane technologies
.
? (1) Carry out green manufacturing and industrial digital transformation of high-performance hollow fiber ultra/microfiltration membranes and gradually change the unfavorable situation of long-term dependence on imports for membrane raw materials, develop a green large-scale and stable synthesis process for membrane raw materials; develop hollow fiber ultra/ The intelligent production process of the microfiltration membrane realizes the automation, intelligence and standardization of the manufacturing process, and supports the precise control of the membrane structure
.
Promote the digital transformation of the industry, develop a 10,000-ton-class modular processing system, an energy-saving hollow fiber membrane filtration system, and establish a separation membrane product operation and intelligent control platform based on the whole process of information perception, intelligent decision-making, automatic control, and precise management, and gradually realize " Smart Water"
.
? (2) Develop high-quality hollow fiber hydrophobic membranes and industrialize new super-hydrophobic polymer raw materials, strengthen the research of precise control methods for the surface interface and pore structure of hollow fiber hydrophobic membranes, and achieve uniform pore size, good hydrophobic stability, and mass transfer efficiency Highly industrialized hollow fiber hydrophobic membranes, comprehensively improve the quality of domestic hydrophobic membranes, and break the foreign monopoly of high-end hollow fiber hydrophobic membrane products such as ECMO membranes
.
Carry out research on the construction method of super-hydrophobic and double-phobic hollow fiber membranes to realize continuous and controllable preparation of super-hydrophobic and double-phobic hollow fiber membranes
.
Enhance the development of hollow fiber hydrophobic membrane components, equipment, process enhancement methods, and integrated technology system for engineering applications, and promote innovative applications of hollow fiber hydrophobic membranes in the fields of resource extraction, new energy, and biomedical technology
.
(3) Research and develop new hollow fiber membrane technology and conduct engineering demonstrations.
Accurately grasp the international frontier research directions of separation membranes, accelerate the development of hollow fiber nanofiltration, reverse osmosis membranes, inorganic hollow fiber membranes and other industrialized technologies, and strengthen forward osmosis and intelligent response , Catalytic separation, affinity and dynamic transmission, energy storage and chromatographic membrane technology and other innovative research
.
Explore the construction of a green and efficient new membrane process, process enhancement and multi-process coupling and synergistic methods, and realize the large-scale preparation and engineering demonstration of key new membrane products
.
(4) Research on the recycling and reuse technology of waste membrane products.
Research on the failure mechanism of membrane materials, establish membrane material composition, physical and chemical properties, and microstructure evolution models and evaluation methods, develop new processes for membrane material life extension and remanufacturing, and maximize the use of waste membranes Material
.
Research the matching technology of remanufactured membrane materials and application processes, and form a complete set of technologies for efficient recovery and high-value reuse of waste composite membrane materials
.
Research membrane material identification and identification technology, develop membrane material sorting technology, establish a professional technical service platform, realize the resource reuse of waste membrane products, and solve the problem of a large amount of solid waste and resource waste generated by the decommissioning of tens of millions of square meters of membrane modules every year
.
6.
Countermeasures and suggestions (1) Innovate the talent management model and stimulate the power of industrial technology innovation.
Hollow fiber membrane technology involves textiles, materials, chemical industry, environment, machinery, control and other disciplines, but professionals with multidisciplinary knowledge background Extremely short
.
It is recommended to explore a more flexible and open talent training mechanism to promote the cultivation of high-end talents in separation membranes based on multiple disciplines; establish a high-performance membrane material innovation center with industry leading companies, membrane-related national key laboratories and national engineering centers as the main body , To promote multi-disciplinary exchanges, cooperation and innovation of scientific and technological teams, and strengthen the training of integrated talents in the field of membranes
.
Integrate membrane raw materials (upstream), membrane production equipment and membrane preparation technology (midstream), membrane application (downstream) technology and the entire chain of resources of the industry, vertically establish industrial alliances, stimulate industrial technological innovation, and continuously improve the technical level of China's membrane industry
.
(2) Increase resource input and promote innovative research on membrane materials.
Comprehensive use of fiscal investment policies, tax incentives, preferential financing policies, and talent policies; make full use of market mechanisms to encourage and guide social funds to enter the membrane industry market; explore industrial investment Funds, venture capital funds and other investment forms promote social investment through state investment, and guide various financial institutions to fund the rapid development of the film industry
.
Increase the support of national basic research projects for the basic and applied research of film-making raw materials, encourage social capital to intervene in the innovation chain and extend to the front end of the innovation chain, and use the market sensitivity and entrepreneurial spirit of social capital to improve the effectiveness of technology development , Timeliness and conversion efficiency
.
? (3) Strengthen industry regulations, strengthen intellectual property protection and standardization work, recommend the implementation of a strict intellectual property protection system, and improve the intellectual property rights protection assistance system; study and formulate policies and measures to reduce the cost of intellectual property protection and rights protection of small and medium-sized enterprises; strengthen the use of intellectual property rights , Encourage and support the use of intellectual property rights to participate in market competition and guide orderly competition
.
Strengthen the construction of energy efficiency standards, water efficiency standards and the construction of standards and specifications for membrane technologies in different application fields, and promote the standardization of the recycling and reuse of waste membrane filaments; increase the mutual recognition of standards with major trading countries, and take foreign membrane engineering demonstration applications as examples Foundation, jointly carry out international standard research and international standard formulation
.
? (4) Strengthen international cooperation, open up the international market, combine the top-level layout of the "One Belt and One Road" initiative, use membrane technology as a link, strengthen scientific and cultural exchanges, establish joint laboratories between countries, and build international development cooperation and services for the hollow fiber membrane industry Platform; strengthen brand internationalization, provide technical, information, and policy support for hollow fiber membrane companies to "go global"; promote the transnational application and transfer of water treatment technologies, and serve the environmental protection needs of countries along the "Belt and Road"
.