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China Ultrafiltration Membrane System Suppliers - Drinking Water Purification Machine Factory
Products Video
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
1. The separation process does not involve phase changes, with low-pressure pumps serving as the driving force, resulting in minimal energy consumption.
2. Separation can occur at room temperature, making it suitable for heat-sensitive substances.
3. The equipment and process design are simple, facilitating operation, management, and maintenance.
4. 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.
Environmental Protection & Energy Saving
No chemical reagents required, with low energy consumption.
Wide Application Range
Suitable for various liquid separation and concentration processes.
Scope of Application
1. Water Treatment
Used for drinking water purification, sewage treatment, and seawater desalination pretreatment.
2. Food Industry
Concentration of fruit juices, separation of whey proteins, clarification of wines, etc.
3. Pharmaceutical Industry
Separation and purification of proteins, enzymes, vaccines, and other biological products.
4. 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 ultrafiltration membrane technology?
Ultrafiltration is a pressure-driven membrane separation process situated between nanofiltration and microfiltration. It uses a specialized membrane to filter out colloids, particles, and high molecular weight substances (typically 500 to 500,000 Daltons) from water, ensuring a high level of purification.
What are the core advantages of using ultrafiltration?
Key benefits include high separation efficiency for macromolecules, low energy consumption because the process does not involve phase changes and uses low-pressure pumps, simple system operation with high automation, and eco-friendly performance as no chemical reagents are required.
What are the recommended operating conditions for this ultrafiltration system?
For optimal performance, the system requires an inlet water temperature of 10-60°C, an inlet pH of 2-11, operating pressure between 0.11-0.6 MPa, water turbidity below 10 NTU, inlet TSS under 20 mg/L, and inlet COD (Gr method) below 30 mg/L.
What industries benefit most from ultrafiltration systems?
Ultrafiltration is widely applied in municipal and industrial water treatment, the food and beverage industry (for juices, wines, and proteins), the pharmaceutical sector (for vaccines and enzymes), and the chemical industry for emulsion separation and wastewater recovery.
Can ultrafiltration remove organic matter and colloidal silicon?
Yes, as water passes through the micropores of the ultrafiltration membrane, most of the colloidal silicon and a significant portion of organic matter are effectively intercepted and removed, leading to purification and concentration of the stock solution.