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It is mainly used in various fields of industry, such as pure water, boiler recharge water, food processing and pharmaceutical manufacturing.
Model | Membrane ft2 (m2) | Average Permeate GPD(m3/d) | Stable Rejection % | Min. Rejection % |
RM-NF-4040 | 85 (7.9) | 2200 (7.9) | 55~75 | - |
RM-NF-8040 | 400 (37) | 9000 (33.9) | 55~75 | - |
Testing Pressure | 70 psi (0.48MPa) |
Temperature of Testing Solution | 25 ℃ |
Concentration of Testing Solution (NaCl) | 2000ppm NaCl；2000ppm MgSO4 |
pH Value of Testing Solution | 8 |
Recovery Rate of Single Element | 15% |
Max. Working Pressure | 600psi (4.14MPa) | Max. Feed Water COD | 10ppm |
Max. Feed Water Flow | 75 gpm (17m3/h) for 8040 | Max. Feed Water BOD | 5ppm |
Max. Feed Water TOC | 10ppm | ||
Max. Feed Water Temperature | 45°C | Residual Chlorine Concentration of Feed Water | <0.1 ppm |
Max. Feed Water TDS | 2000ppm | pH Range of Feed Water During Continuous Operation | 3~10 |
ax. Feed Water Hardness | 60ppm | Max. Pressure Drop of Single Element | 15psi (0.1MPa) 8040、4040 |
Max. Feed Water SD 115 | 5 | ||
Max.Turbidity NTU | 1.0 |
Note:
1. For the recommended design scope, please refer to the latest version of the technical manual, design guide, or consult with membrane technology experts. If the user does not strictly follow the operating conditions provided by the sample, Suzhou Runmo Water Treatment Technology Co., Ltd. will not bear all the consequences arising therefrom.
2. The average water yield listed in the table shows that the error of water yield of a single membrane element in series is within (+10%).
The difference between the minimum water yield and the nominal value of other series of single membrane elements is not more than 20% of the nominal value.
3. Wet membrane components are strictly tested before they leave the factory. They are stored in 1.0% sodium bisulfite solution. Then they are packed in vacuum and packed in cardboard boxes. The safe storage temperature of wet membrane components is 4-45 °C.
4. RO production water to be discharged in the first hour of operation.
5. During storage and operation, it is prohibited to add any chemicals that affect membrane components. In case of violating the use of such chemicals, Suzhou Runmo Water Treatment Technology Co., Ltd. will not bear all the consequences arising therefrom.
Nanofiltration membranes are widely used for applications that require selective separation and efficient purification, including:
Runmo NF membranes provide stable filtration performance for various industrial water treatment systems.
ULP/XULP series of membrane elements is suitable for desalination treatment of surface water, groundwater, tap water, and municipal water with salt content less than 2000 ppm. It is mainly used in various fields of industry, such as pure water, boiler recharge water, food processing, and pharmaceutical manufacturing.
It is mainly used in various fields of industry, such as pure water, boiler recharge water, food processing and pharmaceutical manufacturing.
highly purified water in the electronics and power industries.
It is suitable for desalination treatment of surface water, groundwater, tap water, and municipal water with salt content less than 10,000 ppm. It is mainly used for industrial pure water of various scales, boiler feed water of power plants, and other industrial water. It can also be used for the treatment of brackish water applications such as high-concentration saline wastewater and beverage water manufacturing.In the
FR series, the surface of this membrane was treated by special technology, which changed the electric charge and smoothness of the membrane surface, increased the hydrophilicity of the membrane surface, thus reducing the contamination of pollutants and microorganisms on the membrane surface, and
achieving the purpose of reducing the contamination of membrane components and prolonging the service life.
It is mainly used in various fields of industry, such as pure water, boiler recharge water, food processing and pharmaceutical manufacturing.
SW series membrane elements are suitable for the treatment of seawater and brackish water with high concentration. They can be used for the treatment of seawater desalination, desalination of brackish water with high concentration, boiler feed water in power plants, wastewater reuse, concentration and recovery of high-value-added substances such as food and medicine, etc.
It is mainly used in various fields of industry, such as pure water, boiler recharge water, food processing and pharmaceutical manufacturing.
Polyvinylidene fluoride (PVDF) is used as the material, and its greatest characteristic is its high chemical stability. The chemical stability determines its outstanding antioxidant ability and acid and alkali resistance.
In order to ensure the normal operation of membrane components and stabilize water flux, it is necessary to clean the membrane regularly. The most effective method is oxidant cleaning. But oxidants can damage the membranes. The ability of polyvinylidene fluoride (PVDF) to withstand oxidants (sodium hypochlorite, etc.) is more than 10 times that of polyethersulfone, polysulfone, and other materials, thus greatly prolonging its service life. Polyvinylidene fluoride (PVDF) film also has strong flexibility. The results of the practical case investigation show that the PVDF film has the advantage of a minimum breakage rate. It has been more and more widely used in the field of sewage treatment. Sketch of characteristics of Runmo PVDF membrane module :
1. High antioxidant and cleaning resistance: High-quality polyvinylidene fluoride material determines the enhanced chemical stability of membrane products, and the high chemical stability of the membrane makes the membrane resistant to high concentration oxidant cleaning, thus effectively preventing microbial reproduction such as bacteria;
2. High Flux: High Porosity of Products, High Flux of Components;
3. High Strength: Good flexibility: Membrane wire has high strength and good flexibility. It is not easy to break during cleaning;
4. High pollution resistance: through hydrophilic modification, the product's pollution resistance is greatly improved;
5. Good Water quality : Ultrafiltration membrane has a small nominal aperture, so it can remove almost all suspended particles, microorganisms, colloids, pathogens and bacteria in the application of this product;
6. Long service life: Components usually adopt external pressure structure which is not easy to plug. They have larger filtering area and higher pollution interception, easy to clean, and more thorough. They can remove the fouling on the membrane surface in time, so that the service life of the membrane is longer.
It is mainly used in various fields of industry, such as pure water, boiler recharge water, food processing and pharmaceutical manufacturing.