PSI MEMBRANE® Pro-BW brackish water membrane ,incorporated with innovative Thin Film Nanocomposite(TFN) technology,are suitable for reclaimed wastewater, surface water and difficult well waters treatment and feed Waters total dissolved solids (TDS) between 2000 ppm to 8000 ppm.
Key features:
Produce higher flux:Delivers consistent water quality and higher rejection and flow than conventional technology membrane .
Anti-fouling resistant:Enhanced anti-fouling protection is greatly reduce microorganisms and inorganic fouling .
Excellent chemical cleaning resistant:Excellent cleaning resistant performance resulting in long-term stable running and durability.
Key applications:
Ideal for industry application Such as Electronics, Power, Petrochemical, Refinery, Food and Beverage industries.
Municipal water purification.
| Product |
Effective Membrane area
ft² (m²) |
Feed spacer thickness (mil) |
Product Flow Rate
g p d( m ³/d) |
Stable Salt Rejection
(%) |
Minimum Salt Rejection
(%)
|
| Pro-BW-2521 |
14(1.3) |
32 |
350(1.2)
|
99.5 |
99.2 |
| Pro-BW-2540 |
28(2.6) |
32 |
750(2.8)
|
99.5 |
99.2 |
| Pro-BW-4021 |
36(3.3) |
32 |
1000(3.8)
|
99.5 |
99.2 |
| Pro-BW-4040 |
85(7.9) |
32 |
2600(9.8) |
99.5 |
99.2 |
| Pro-BW-8040 |
400(37) |
32 |
10500(39.7) |
99.5 |
99.2 |
| Pro-BW-8040 |
440(40) |
28 |
12500(47.3) |
99.5 |
99.2 |
1.Product flow rate and salt rejection rate were based on the following test conditions:
Feed water concentration 2000 ppm as NaCl, Feed water pressure 225 psi (1.55 MPa), Feed water temperature 77 ° F (25 ° C), Recovery rate 15% for each single membrane.
2. Variation range of product flow +/-15%;
Oprating Condition:
| Operating Limits |
Unit |
Value |
| Maximum operatingpressure |
psi(bar) |
600(41) |
| Maximumfeed water temperature |
°F(°C) |
113(45) |
| Maximum pressure drop |
bar |
1 |
| ContinuousoperationpH range |
|
2~11 |
| Cleaning PH range |
|
1~13 |
| Maximum feed watere SDl15 |
|
5 |
| Maximum influent turbidity |
ntu |
1 |
| Maximum residual chlorine concentration of influent |
ppm |
<0.1 |
SIZE:mm
| Model |
A |
B |
C |
| Pro-BW-2521 |
533 |
61 |
19 |
| Pro-BW-2540 |
1016 |
61 |
19 |
| Pro-BW-4021 |
533 |
100 |
19 |
| Pro-BW-4040 |
1016 |
100.3 |
19.1 |
| Pro-BW-8040 |
1016 |
200 |
28.6 |
| Pro-BW-8040 |
1016 |
200 |
28.6 |
Industry Applications
Proshare has earned its valuable experience by proposing its technical solutions to the industrial sector, where absolutely pure water is needed for the various industrial processes,waste water treatment and reuse ,resource recycling.
We engage in main industry sector including petrochemical,mining, lithium extraction from salt lake,lithium Iron phosphate & lithium battery recycling, semiconductor ,sea water desalinization,reclaimed,leachate,syntheticbiology,copperfoil,pharmaceutical,and power.
Also such as steam boilers feeding, food & beverages (mineral water bottling, soft drinks, juices), painting lines, dairies, ice creams, laundries, hospitals, textile, mechanical industries, steel companies, etc.
Hospitality/Seawater and Brackish Water Desalination Applications
Proshare wide experience in desalination technology was applied also in the field of water desalination for civil use in hotels and touristic resorts. Fresh water supply is essential for such infrastructures and R.O. sea water or brackish water desalination is an offered alternative solution that can cover the required capacities of the rapidly expanding touristic areas and their increasing water demands.
Farming applications
The water is essential in order to guarantee the fitness of the animals (e.g. cattle, chickens, sheep, pigs) and to achieve the best productive animals performance. However, not only the quantity of the water can influence the animals desired growth but also the quality of the water.
The water used in the farm can have its origin from a number of different sources, such as water wells, civil water networks and to a less extent from rivers and other superficial sources.
Excluding the water from civil networks (containing free chlorine), the other sources usually have a high concentration of dissolved and suspended solids and pathogens. Consequently,the reverse osmosis technology has demonstrated to be the most efficient technology to reduce their negative effects, the contaminated water used in the farms, should undergo technological treatment in order to reduce substances that can be harmful for the animals.
Municipal and Civil use
We provide innovative and scalable solutions to customers - for the efficient and sustainable treatment of their wastewater and effluents. Our broad portfolio of patented technologies and national-level experts and scientific research institution provide peace of mind for all municipalities subject to strict health and environmental standards. We seek to continuously improve our sanitation systems through the gathering of systematic feedback from our engineers in the field.
Our sewage treatment know-how is one of the key pillars of the expertise we provide to support you to reach your sustainable development goals.As a major player in sustainable development, we have a wide range of solutions including:
Sanitation technologies.
Recovery of reusable materials wastewater.
Successful Cases Reference
Proshare PSI MEMBRANE Desalination RO Membrane Serves Desalination in Cruise Ship
The application of desalination membranes on international luxury cruise ships has historically been dominated by a few international brands. The quality of feed water, such as salinity and temperature, fluctuates with the cruise ship's journey. Therefore, the membranes must adapt to different conditions while ensuring stable water production to meet the needs of ocean-going vessels.
PSI MEMBRANE Pro-HR-SW seawater desalination membranes demonstrated superior performance in both desalination rate and stable water production. The water quality produced by these membranes met the stringent requirements of the cruise ship.
This remarkable result led to the replacement of desalination membranes on three additional cruise ships. Proshare's success in this venture establishes it as the first national brand to win international luxury cruise ship orders for desalination RO membranes.
A Complete Water Treatment Plant for Generating Ultra-pure Water in Semiconductor Industry
As we all know, electronic-grade ultra-pure water on the membrane desalination rate requirements are extraordinary high, only a few brands can meet this requirement.
Based on Proshre revolutionary TFN membrane technology and TsingXi team's rich experience in the water treatment industry ,A complete water treatment plant pure water equipment solutions showed excellent rejection performance of the salt,boron and TOC. the system water production have reached the semiconductor industry production of water requirements.
This positive result helped us get the Japanese listed company electronic ultra-pure water treatment project.
Proshare Tailor made TFN special acid-resistant and high-pressure membranes for Wastewater Treatment in Petrochemical / Refining Truly Achieve Zero Liquid Discharge
Proshare Tailor made TFN special acid-resistant and high-pressure membranes separation and concentration device for wastewater treatment containing ammonium sulphate desulphurisation , achieved wastewater concentration of up to 40 times the concentration of ammonium sulphate concentration of ≥ 20% of the concentrated water, significantly reducing the subsequent evaporation and crystallisation of energy consumption, substantial cost savings for the user, the quality of the water produced by the stable to meet the China Petroleum and Chemical Corporation corporate standard Q/SH 0628.2-2014 circulating water make-up water , and zero wastewater discharge has been truly achieved.
This positive result has gained subsequent orders from other subsidiaries of the group.
This membrane are also applicable to other high-temperature, highly acidic wastewater containing ammonium sulphate scenarios, such as energy, refining, chemical, metallurgical and other industries.the latest development of ammonia desulphurisation technology combined with carbon capture,help the new energy consumption and the development of the green industry chain, in line with the national 'dual-carbon policy.
Proshare TFN-SEP Customized NF Membrane Dramatically Increases Lithium Permeate Rate up to 96.6%,retention rate of Mg2+ > 99%,retention rate Ca2+ > 98%
Technical Bottlenecks of Membrane Separation (Nanofiltration/Reverse Osmosis) in Lithium Extraction from Salt Lakes challenged by membrane fouling,low selectivity<80%,high energy consumption accounts for 30%-40% of total cost,short membrane lifespan 2-3years.
Proshare PSI MEMBRANE TFN-SEP Customized NF /RO Membrane
demonstrated superior performance data in an lithium extraction project located in Lakkor Tso Salt Lake ,Tibet.China:
With only 2 stage Nanofiltration process +1 stage RO given production water with Mg2+ 2.9mg/L, Ca2+ 2.25mg/L. retention rate of Mg2+ > 99%, retention rate Ca2+ > 98%, lithium permeate rate 96.6%, the flux close to 20LMH under the operating pressure of 1MPa.Proven membrane technology is environmentally and economically friendly and improves product purity and quality .
Proshare Team's Breakthrough in Next-Generation Reverse Osmosis Membrane Technology
Proshare team has innovatively developed a new generation of reverse osmosis membranes based on polymer interface nano-self-assembly technology, overcoming the limitations of traditional reverse osmosis membrane development through two key advancements:
Ultra-Thin Separation Layer: By employing polymer interface nanotechnology, the team successfully reduced the thickness of the separation layer to at least three times thinner than the traditional polyamide thin film (previously limited to 100 nm). This breakthrough significantly enhances water flux, achieving a substantial improvement in permeability.
Enhanced Performance: The introduction of nanoparticles and specialized hydrophilic polymers has led to groundbreaking advancements in the membrane's hydrophilicity, anti-fouling capability, durability, and oxidation resistance
Compared to traditional polyamide reverse osmosis membranes, Proshare's innovation demonstrates breakthroughs in four key aspects:
Self-Assembled Nanocomposite Films
The integration of nano-scale precision control and nano-doping modification enables the creation of ultra-thin, highly ordered separation layers via polymer interface nanotechnology. This approach overcomes the limitations of conventional polyamide membranes in thickness uniformity and material diversity.
Enhanced Water Flux and Energy Efficiency
By optimizing the layer-by-layer self-assembly process, the functional layer thickness is precisely controlled, achieving a 3x reduction compared to traditional membranes. This results in >3x higher water flux and 30% lower energy consumption.
Novel Polymer Materials with Superior Chemical Stability
Moving beyond polyamide, the team utilizes advanced hydrophilic polymers (e.g., modified polysulfones) and ceramic-organic hybrids. These materials exhibit exceptional oxidation resistance (withstand 10 ppm chlorine exposure) and pH tolerance (stable in 1-12 pH range).
Anti-Fouling Surface Engineering
The superhydrophilic surface (contact angle <10°) combined with nanoparticle reinforcement reduces organic fouling propensity by 50%, extending chemical cleaning cycles from 3 months to 6 months and cutting maintenance costs by 40%
Health&safety management system Certificate Environmental management system certificate ISO9001 qaulity system cetificate
Invention patent of membranes produce Invention patent of multi-layer RO membrane RoHS COMPLIANCE certificate
Proshare Innovation Suzhou Co., Ltd. is a national high-tech enterprise specializing in the R&D and industrialization of third-generation thin-film nanocomposite (TFN) membranes for reverse osmosis (RO), nanofiltration (NF), and material separation applications. Founded in 2017 by a team of overseas-returned doctoral experts led by Dr. Lin Xiaofeng, a recipient of national-level talent programs, the company has emerged as China's sole domestic manufacturer of TFN membranes.
Core Competencies
Technological Innovation: Pioneered the application of TFN technology to nanofiltration membranes, achieving fully independent R&D and localized production of both membranes and manufacturing equipment.
Intellectual Property: Holds over 31 patents, with membrane performance reaching internationally leading standards and replacing monopolized foreign products.
Production Capacity: Operates a 2,000 m² R&D facility and a 15,000 m² production base.
Funding: Completed Pre-A Round (2023) and A Round (January 2025) financing, backed by Suzhou Industrial Park Science Innovation Fund and Yong Sheng Capital.
Market Recognition: Designated as a preferred supplier for listed environmental engineering firms and state-owned enterprises.
Leadership:Dr. Lin Xiaofeng, a Ph.D. graduate from the University of Strasbourg (France), has been recognized with provincial and national talent awards (e.g., Suzhou Leading Talent, Jiangsu Dual Innovation Talent) and leads the company's R&D breakthroughs in TFN membrane industrialization.
WHY US?
FAQ:
(1) Q: Why Choose Our Company?
A:Complete water treatment solutions
Provide customer revolutionary (Thin Film Nanocomposite) TFN membrane sheet ,membrane element and water treatment system solutions.
A:Customization capabilities
Backup by national expert teams and Tsinghua University Suzhou Environmental Innovation.
A:Ensuring quality and delivering worth.
Not only do our premium solutions ,but can also provide significant ROI for customers,We provide training, support, and services, and bring our local expertise to global markets.
A:Collaborating with our customers
Our inspiration comes from our customers and what they do every day to provide the most valuable source of hope -clean water.Thriving together for a water-optimized world.
(2)Q: Are you a manufacturer or Trade Company?
A: We are a professional manufacturer holding our own International Trade Department, for that we can better understand customer's needs and offer a reasonable price.
(3) Q: How's the after-sale service?
A: We offer engineers available to service overseas under merchandiser's supervision and translation.
(4) Q: How about the quality?
A: The main sub-assembly and raw materials are all supplied by large companies. Key parts are research and developed by our own staff. Professional assembly line work and strict quality test system can ensure your high quality requirement.
(5) Q: Product /Quality Guarantee and After Sale Service?
A: 1 year warranty for the International standard. We are work online 24 hours. If you have any questions about our machine you can contact us.
(6) Q: Certification?
A: Tsingxi is an ISO9001, ISO14001, and ISO45001 company. The products are designed to meet the technical standards of 3C and CE. All the products are certified by the Industry Administration Authority. Tsingxi will continue to strive to be a stronger high-tech company in the global market of water treatment.
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