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China Ultrafiltration Membrane System Suppliers - Drinking Water Purification Factory for Effective Water Treatment
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Products Description
Ultrafiltration is a kind of membrane separation technology between nanofiltration and microfiltration. Ultrafiltration uses a pressure-active membrane to trap colloids, particles and relatively high molecular weight substances in water under the action of external driving force (pressure), while water molecules and small solute particles pass through the membrane separation process. The material with molecular weight of 500-500000 Dalton can be intercepted by screening through micropores on the membrane surface. When the treated water passes through the membrane surface at a certain flow rate with the help of external pressure, water molecules and solutes with molecular weight less than 300-500 pass through the membrane, and particles and macromolecules larger than the membrane pores are intercepted due to the screening effect, so that the water is purified. That is to say, when the water passes through the ultrafiltration membrane, most of the colloidal silicon contained in the water can be removed, and a large amount of organic matter can be removed, so as to achieve the purpose of purification, separation and concentration of the stock solution.
Major Components
Low Energy Consumption
The separation process does not involve phase changes, with low-pressure pumps serving as the driving force.
Room Temperature Separation
Separation can occur at room temperature, making it highly suitable for heat-sensitive substances.
Simple Process Design
The equipment and process design are simple, facilitating easy operation, management, and maintenance.
High Efficiency & Compact
The effective membrane area per unit volume is large, ensuring high work efficiency and a reduced footprint.
Operating Conditions
Inlet Water Temp
10 - 60°C
Inlet pH
2 - 11
Operating Pressure
0.11 - 0.6 MPa
Water Turbidity
< 10 NTU
Inlet TSS
< 20 mg/L
Inlet COD (Gr method)
< 30 mg/L (O₂)
Advantages
Efficient Separation
Capable of effectively separating macromolecular substances.
Easy Operation
High degree of automation, simplifying operation and maintenance.
Eco-Friendly & Energy Saving
No chemical reagents required, with low energy consumption.
Wide Application Range
Suitable for various liquid separation and concentration processes.
Scope of Application
Water Treatment
Drinking water purification, sewage treatment, and seawater desalination pretreatment.
Food Industry
Concentration of fruit juices, separation of whey proteins, and clarification of wines.
Pharmaceutical Industry
Separation and purification of proteins, enzymes, vaccines, and other biological products.
Chemical Industry
Recovery of valuable substances from wastewater and separation of emulsions.
It is particularly suited for further purification of water containing low levels of impurities (turbidity less than 2-5 degrees). Its applications span industrial water treatment, municipal drinking water projects, beverages, wines, and biopharmaceutical industries.
Frequently Asked Questions
What is the molecular weight cutoff for the ultrafiltration membrane?
The ultrafiltration membrane can screen and intercept substances with a molecular weight ranging from 500 to 500,000 Daltons, while allowing water molecules and smaller solutes (less than 300-500 molecular weight) to pass through.
What are the key operating pressure and temperature requirements?
The system operates efficiently within a pressure range of 0.11 to 0.6 MPa and is compatible with inlet water temperatures between 10°C and 60°C.
Can this system handle highly turbid water directly?
For optimal performance, the inlet water turbidity should be less than 10 NTU, and the inlet TSS (Total Suspended Solids) must be less than 20 mg/L. It is particularly designed for the further purification of water with turbidity levels below 2-5 degrees.
What makes ultrafiltration more energy-efficient than other separation methods?
Ultrafiltration is a physical separation process that does not involve phase changes. It relies primarily on low-pressure pumps as the driving force, which minimizes energy consumption compared to thermal separation technologies.
In which industries is this ultrafiltration system commonly used?
It is widely applied in municipal and industrial water treatment, the food and beverage industry (clarification and concentration), biopharmaceuticals (purification of proteins/vaccines), and chemical wastewater recovery.