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Views: 0 Author: Site Editor Publish Time: 2026-06-27 Origin: Site
A tubular microfiltration (MF) membrane is a high-precision tubular pressure-driven separation element designed for industrial solid-liquid separation, clarification, and impurity removal. Different from hollow fiber membranes, flat sheet membranes, and ultrafiltration membranes, tubular MF membranes feature a rigid tubular structure with uniform micropores ranging from 0.1μm to 10μm. Under low operating pressure, it effectively intercepts suspended solids, colloids, bacteria, fine particles, and sediments while allowing water molecules and small soluble substances to pass through smoothly.
Thanks to its open tubular flow channel, anti-fouling structure, and strong chemical resistance, tubular microfiltration membranes have become the most reliable solution for high-turbidity, high-suspended, and high-viscosity industrial wastewater treatment, widely adopted in chemical, electronics, pharmaceutical, food and beverage, and environmental protection industries worldwide.
Tubular microfiltration operates based on physical pore size sieving technology with pressure difference as the driving force. Raw liquid flows inside the tubular membrane channel at a certain flow rate, and the pressure pushes clean water and small molecular solutes to penetrate the membrane wall to form permeate water. Meanwhile, large particles such as suspended solids, colloids, sludge, and bacteria are trapped on the inner membrane surface to form concentrated retentate.
The cross-flow operation mode effectively flushes the membrane surface, significantly slowing down membrane fouling. Combined with regular backwashing and chemical cleaning, the membrane maintains stable flux and long-term continuous operation, avoiding the blocking and short service life defects of traditional filtration media.
Industrial tubular microfiltration membranes are mainly made of high-purity polymer and inorganic materials, with stable pore structure and excellent chemical adaptability for complex water quality conditions.
PVDF is the most mainstream material for industrial tubular MF membranes. It features outstanding chemical stability, strong acid and alkali resistance, oxidation resistance, and excellent hydrophobicity. The rigid integral structure resists pressure deformation, with high dirt holding capacity and easy cleaning. It is suitable for harsh working conditions with high suspended solids and frequent chemical cleaning.
Core Features: Anti-fouling, corrosion-resistant, reusable, high mechanical strength
Applicable Scenarios: Industrial wastewater clarification, chemical wastewater treatment, sludge concentration, circulating water filtration
PES and PS membranes have uniform pore size distribution and high filtration precision, with good temperature resistance and solvent resistance. They are widely used in medium-precision clarification and sterile filtration scenarios, featuring stable water flux and low particle leakage rate.
Applicable Scenarios: Pharmaceutical liquid clarification, food beverage filtration, biological solution purification
Made of high-purity alumina and zirconia inorganic materials, ceramic tubular membranes have ultra-high temperature resistance, pressure resistance, and chemical inertness. They can withstand strong acid, strong alkali, and high-temperature cleaning, with absolute pore size interception and zero fiber shedding. It is a high-end solution for high-standard industrial purification.
Applicable Scenarios: High-temperature liquid filtration, fine chemical purification, sterile industrial water treatment
Compared with hollow fiber MF membranes, flat sheet membranes, and traditional filtration processes (sand filtration, bag filtration, sedimentation), tubular microfiltration membranes show irreplaceable superiority in industrial complex working conditions:
Superior Anti-Blocking Performance: Large open tubular flow channel avoids clogging by large particles and sludge, perfectly adapting to high-turbidity raw water that hollow fiber membranes cannot handle.
Strong Chemical Resistance: Supports frequent acid, alkali, and sodium hypochlorite cleaning, thoroughly removes dirt and organic fouling, and fully recovers membrane flux.
High Pressure & Deformation Resistance: Rigid tubular structure withstands high cross-flow velocity and backwash pressure, no crack or deformation during long-term operation.
Stable Filtration Precision: Fixed micropore structure ensures consistent interception effect, effectively removes 99.9% of suspended solids, colloids, and bacteria, with stable effluent water quality.
Easy Maintenance & Low Operation Cost: Supports online automatic backwashing and chemical cleaning, no frequent replacement required, greatly reducing manual maintenance and consumable costs.
Wide Adaptability: Works normally in high salt, high hardness, high viscosity, and high-temperature water environments, covering most industrial solid-liquid separation scenarios.
Ideal for PCB wastewater, electroplating wastewater, desulfurization wastewater, and high-salt industrial wastewater. It realizes efficient solid-liquid separation, removes suspended solids and colloids, provides qualified pre-treatment water for reverse osmosis systems, and supports industrial wastewater recycling and zero-discharge projects.
Used for clarification and impurity removal of traditional Chinese medicine extracts, biological fermentation broth, pharmaceutical intermediate liquid, and sterile water for pharmaceutical use. It effectively removes bacteria, macromolecular impurities, and suspended particles to improve liquid purity.
Applied in clarification filtration of fruit juice, wine, beer, dairy products, and edible syrup. It removes fine sediments and miscellaneous bacteria while retaining effective nutritional components, improving product clarity and shelf life.
Suitable for chemical raw material liquid purification, lithium battery wastewater treatment, industrial circulating water filtration, and acid-base liquid recovery. It ensures stable production water quality and realizes resource recycling.
Used for municipal tap water purification, reclaimed water reuse, and aquaculture water sterilization and clarification, reducing water turbidity and harmful microorganisms to meet daily and industrial water standards.
By Water Quality Condition: High turbidity and high sludge wastewater prefer PVDF tubular membrane; high-temperature and strong corrosive liquid choose ceramic tubular membrane; pharmaceutical and food clarification select PES/PS membrane.
By Filtration Precision: 0.1–0.22μm for bacteria removal and sterile clarification; 1–5μm for conventional suspended solid removal; 5–10μm for coarse filtration and large particle interception.
By Operation Requirements: Projects requiring frequent chemical cleaning and long-term continuous operation prioritize PVDF material; high-standard sterile purification scenarios choose ceramic or PES materials.
By Customization Demand: Support customized membrane tube length, pore size, outer diameter, and membrane module configuration to match different water volume and equipment parameters.
Q1: What is the difference between tubular MF membrane and hollow fiber membrane? A: Tubular membranes have larger flow channels, stronger anti-fouling ability, and adapt to high-turbidity wastewater. Hollow fiber membranes are easily blocked by sludge and only suitable for clean water treatment. Tubular membranes have longer service life and more stable operation in complex industrial scenarios.
Q2: Can tubular microfiltration membranes be reused? A: Yes. All industrial-grade tubular MF membranes are reusable. Regular backwashing and periodic chemical cleaning can completely restore membrane flux, with a service life of 2–5 years under standard operation.
Q3: What pollutants can microfiltration membranes remove? A: It can effectively intercept suspended solids, sediment, colloidal particles, algae, bacteria, macromolecular organic matter, and fine sludge, reducing water turbidity and SS value significantly.
Q4: Do you support customized tubular membrane modules? A: We provide full customization of material, pore size, size, and module assembly. All products comply with industrial water treatment standards and can be matched with customer’s existing filtration equipment.
As a mature and efficient industrial separation technology, tubular microfiltration membrane solves the pain points of easy blockage, unstable water quality, and high maintenance cost of traditional filtration equipment. With excellent anti-fouling performance, strong chemical adaptability, and stable filtration effect, it has become the core filtration component for industrial water treatment, liquid purification, and resource recycling. We supply high-quality industrial tubular microfiltration membranes and customized membrane system solutions for global industrial customers.
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