Nanofiltration is a membrane separation technology that lies between ultrafiltration and reverse osmosis, with a retention molecular weight ofIn the range of 200-1000 nanometers, the membrane has an aperture size of a few nanometers. Since this membrane retains more than 95% of molecules around 1 nanometer in the permeation process, it is termed nanofiltration. Owing to the superior characteristics of nanofiltration separation technology, it shows great application prospects in fields such as environmental protection, biotechnology, and food industry. A significant feature of nanofiltration membranes is that the membrane itself is charged, which is why it maintains high desalination performance at low pressure and can also remove inorganic salts from membranes with a molecular weight cut-off of hundreds. We offer a variety of compact, rolled nanofiltration membrane elements with reasonable surface area/volume ratios. By employing different channel meshes (13-120 mil), the width of the feed fluid channel can be adjusted to accommodate various viscosities. To meet the requirements of certain special industries, we can select the appropriate nanofiltration membrane for customers based on their process demands, treatment systems, and relevant technical requirements.
I. Experimental Machine Functions and Applications
This unit is a small-scale membrane separation device for laboratory use, including ultrafiltration, nanofiltration, and reverse osmosis, which can be widely applied in the separation, concentration, and purification of substances; the industrialization concept runs throughout the design process of the equipment, suitable for researchers to explore various process parameters required for the industrial scaling-up of the equipment.
Two,Features of the Experimental Machine
The overall structure is compact, operation is simple, stability is excellent, the appearance is aesthetically pleasing, and the entire machine is made of stainless steel.
The power section utilizes a hydraulic diaphragm pump, offering high head, stable pressure, and reliable performance.
● The system's high-pressure piping is made of sanitized stainless steel, offering high pressure resistance and corrosion resistance. The connections use sanitized clamp-style fittings, ensuring convenient and reliable assembly.
● The system includes pressure and temperature protection devices. The pressure protection device can automatically alarm and shut down the machine when the pressure exceeds the set limit; the temperature protection device can automatically alarm and shut down the machine when the temperature exceeds the set limit; the safety filter device can prevent system damage caused by the entry of solid particles.
The equipment employs various technologies identical to those in production equipment for controlling parameters such as pressure, temperature, flow, and flow rate, making the separation work in the laboratory more aligned with the actual industrial conditions, which is conducive to the industrialization of the process.
● The equipment utilizes variable frequency control, effectively expanding its range of application; the system's processing capacity is 0-150L/hour (capacity is related to the properties of the material), with a recirculating volume of approximately 350-400ml, particularly suitable for laboratory use.
Section 3:Test Machine Specifications
● Working Pressure: adjustable from 0-40bar, capable of meeting the separation requirements for ultrafiltration, nanofiltration, and reverse osmosis of materials.
Operating Temperature: 0-50°C, equipped with a small tube bundle heat exchanger for easy temperature control and adjustment.
System circulation volume is approximately 350ML.
● Specialized imported diaphragm pump for material handling, with high head, stable pressure, and reliable performance.
● Membrane Core: Imported rolled or hollow membrane elements, specifically designed for material concentration and separation, featuring acid and alkali resistance for cleaning, long service life, and anti-pollution capabilities.
● Narrow membrane core pore size distribution, high retention accuracy;
Equipped with high-temperature and high-pressure automatic shutdown protection devices;
● Recirculating Vessel: Made of SS304 material, highly resistant to corrosion; conical bottom design to significantly reduce recirculation volume.
Pipe System: Utilizes SS316 stainless steel sanitary piping for easy disassembly and maintenance.
● Instrumentation and Electrical Systems: Equipped with temperature, pressure, and flow display gauges for accurate and convenient readings; electrical components and pressure sensors are all imported brands, ensuring safe, stable, and reliable operation of the equipment.
