Nano Filtration (NF) Elements

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TFN90 Series NF Membranes

Product Description

Transfilm TFN90 series NF membranes provide high flux and excellent performance of removing monovalent and divalent salts. It also has high removal rate of organic compounds, such as pesticides, herbicides and THM precursor, etc. It also has high removal of natural organic compounds. In the water treatment process, it can not only reduce the hardness of the water, but also effectively remove the toxic and harmful substances in the water, remove turbidity, color and organic matter. In addition, it can also recover valuable multi-valent salts and small molecular organics. It requires low net driving pressure, and can effectively remove impurities or recover useful substances under very low operating pressure. The system runs with low energy consumption and cost. It is suitable for papermaking, printing and dyeing industry and municipal water treatment system.

Product Highlights

· Excellent removal of salts
· Suitable for removing TOC and THM precursors
· Salt removal under ultra-low pressure and low energy consumption

Product Dimensions

Product Specifications

Flux and rejection rate is based on the following standard test conditions: 0.48 MPa (70 psi) pressure, 77°F (25°C),2000 ppm NaCl solution, 2,000 ppm MgSO solution and pH 8 for feedwater, and 15% recovery.

Operating and Cleaning Limits

Notes

· Maximum Operating Pressure               41 bar (800 psi)
· Maximum Operating Temperature        45°C (113°F )
· Maximum Element Pressure Drop         1.0 bar (15psi)
· pH Range Continuous Operation          2-11
· pH Range Short-Term Cleaning             1-13
· Maximum Feed SDI(SDI15)                    5.0
· Free Chlorine Tolerance                         < 0.1 ppm

· Permeate flow for individual elements may vary ±15 percent from the value specifed.
· Active membrane area guaranteed ±4%.
· Stabilized salt rejection is generally achieved within 24-48 hours of continuous use; depending uponfeedwater characteristics and operating conditions.

TFN150 Series NF Membranes

Product Description

Transfilm TFN150 series NF membranes are manufactured using a unique formula and technology, which is specially developed for special solute concentration and separation process, with stable and reliable performance and superior fouling resistance. TFN150 series fill the gap in the cut-off molecular weight range of the existing NF membranes. It is suitable for fine separation, as well as removal of TOC and THM precursor, separation of monovalent salt, decolorization, separation and concentration of small molecule organic matter, etc.

Product Highlights

· Fill the gap in the cut-off molecular weight range of the existing NF membranes
· Suitable for the separation of fine materials, decolorization, the separation of small molecular organic matter,monovalent and multivalent salts
· Superior chemical stability and fouling resistance

Product Dimensions

Product Specifications

Flux and rejection rate is based on the following standard test conditions: 0.48 MPa (70 psi) pressure, 77°F (25°C),2000 ppm NaCl solution, 2,000 ppm MgSO solution and pH 7 for feedwater, and 15% recovery.

Operating and Cleaning Limits

Notes

· Maximum Operating Pressure               41 bar (800 psi)
· Maximum Operating Temperature        45°C (113°F )
· Maximum Element Pressure Drop         1.0 bar (15psi)
· pH Range Continuous Operation          2-11
· pH Range Short-Term Cleaning             1-13
· Maximum Feed SDI(SDI15)                    5.0
· Free Chlorine Tolerance                         < 0.1 ppm

· Permeate flow for individual elements may vary ±15 percent from the value specifed.
· Active membrane area guaranteed ±4%.
· Stabilized salt rejection is generally achieved within 24-48 hours of continuous use; depending uponfeedwater characteristics and operating conditions.

TFN280 eries NF Membranes

Product Description

Transfilm TFN280 series NF membranes have ultra-high flux and are capable of removing TOC and THM (trihalides) precursor, at the meantime, NF 280 series offer some selectivity in the passing of divalent salts with moderate passing rate and other salts passing with higher passing rate. It is an ideal membrane element for removing organic matter from surface water and groundwater, softening, concentrating, separating or purifying inorganic salts, organic matters, natural drugs and fermentation broth. NF 280-400/34 elements have a large active area and high permeate flux rate, providing a wide range of water treatment, concentration and separation applications for industries. Suitable for removal of TOC, THM precursors, salts, low operating energy consumption systems under ultra-low pressure, as well as for material separation,municipal and industrial water treatment.

Product Highlights

· Highest permeate water flux rate
· High removal of TOC and THM (trihalane) precursors
· Ultra-low operating pressure and power consumption

Product Dimensions

Product Specifications

Flux and rejection rate is based on the following standard test conditions: 0.48 MPa (70 psi) pressure, 77°F (25°C),500 ppm NaCl solution, 2,000 ppm MgSO solution and pH 8 for feedwater, and 15% recovery.

Operating and Cleaning Limits

Notes

· Maximum Operating Pressure               41 bar (800 psi)
· Maximum Operating Temperature        45°C (113°F )
· Maximum Element Pressure Drop         1.0 bar (15psi)
· pH Range Continuous Operation          2-11
· pH Range Short-Term Cleaning             1-13
· Maximum Feed SDI(SDI15)                    5.0
· Free Chlorine Tolerance                         < 0.1 ppm

· Permeate flow for individual elements may vary ±15 percent from the value specifed.
· Active membrane area guaranteed ±4%.
· Stabilized salt rejection is generally achieved within 24-48 hours of continuous use; depending uponfeedwater characteristics and operating conditions.

TFN500 Series NF Membranes

Product Description

Transfilm TFN500 series NF membranes are characterized by extremely high flux and rejection rate, high retainment of divalent salt and excellent passing of monovalent salt. It offers moderate removal rate of organic matters while achieves high flux. It can effectively retain organic compounds with cut-off molecular weight within the range of 300~500D. It offers excellent decolorization as well. The TFN500 series adopt the latest membrane manufacturing technology to
minimize dead spots and bypasses during filtration process. It is suitable for waste water reuse, municipal water treatment,etc. These NF membranes are available in 4”and 8” sizes.

Product Highlights

· Extra high flux , high and stable rejection rate
· Superior decolorization
· Moderate removal rate of organic maters with high flux ·

Product Dimensions

Product Specifications

Flux and rejection rate is based on the following standard test conditions: 0.48 MPa (70 psi) pressure, 77°F (25°C), 2,000 ppm MgSO solution and pH 8 for feedwater, and 15% recovery.

Operating and Cleaning Limits

Notes

· Maximum Operating Pressure               41 bar (800 psi)
· Maximum Operating Temperature        45°C (113°F )
· Maximum Element Pressure Drop         1.0 bar (15psi)
· pH Range Continuous Operation          2-11
· pH Range Short-Term Cleaning             1-13
· Maximum Feed SDI(SDI15)                    5.0
· Free Chlorine Tolerance                         < 0.1 ppm

· Permeate flow for individual elements may vary ±15 percent from the value specifed.
· Active membrane area guaranteed ±4%.
· Stabilized salt rejection is generally achieved within 24-48 hours of continuous use; depending uponfeedwater characteristics and operating conditions.