Tubular ultrafiltration device is a robust pipeline-type membrane separation device specially developed for high turbidity, high solid content, oily and viscous wastewater that cannot be stably treated by conventional hollow fiber ultrafiltration modules. Our company supplies supporting industrial liquid filter along with a full range of ultrafiltration system products covering standard industrial filtration machines, global-oriented customized ultrafiltration systems, common hollow fiber membrane equipment, high temperature resistant ceramic tubular ultrafiltration units and large-flow industrial tubular ultrafiltration skids. With open tubular flow channels and anti-blocking structural design, tubular ultrafiltration devices efficiently intercept suspended solids, oil sludge, colloidal particles and macromolecular organic pollutants, featuring strong anti-pollution ability, easy physical cleaning and long service life. This paper systematically analyzes the structural composition, cross-flow filtration mechanism, standardized technical indicators, strict whole-process quality inspection standards and long-term operating stability of our tubular ultrafiltration devices. Global environmental engineering contractors, factory procurement managers and overseas distributors are accessible to purchase in-stock equipment, apply for non-standard customized design and obtain lifelong professional after-sales technical service, so as to maintain stable operation of the water treatment system and effectively cut daily operation and maintenance costs.
Heavy Duty Tubular Ultrafiltration Device for Industrial Wastewater Treatment
Tubular ultrafiltration device is a robust pipeline-type membrane separation device specially developed for high turbidity, high solid content, oily and viscous wastewater that cannot be stably treated by conventional hollow fiber ultrafiltration modules. Our company supplies supporting industrial liquid filter along with a full range of ultrafiltration system products covering standard industrial filtration machines, global-oriented customized ultrafiltration systems, common hollow fiber membrane equipment, high temperature resistant ceramic tubular ultrafiltration units and large-flow industrial tubular ultrafiltration skids. With open tubular flow channels and anti-blocking structural design, tubular ultrafiltration devices efficiently intercept suspended solids, oil sludge, colloidal particles and macromolecular organic pollutants, featuring strong anti-pollution ability, easy physical cleaning and long service life. This paper systematically analyzes the structural composition, cross-flow filtration mechanism, standardized technical indicators, strict whole-process quality inspection standards and long-term operating stability of our tubular ultrafiltration devices. Global environmental engineering contractors, factory procurement managers and overseas distributors are accessible to purchase in-stock equipment, apply for non-standard customized design and obtain lifelong professional after-sales technical service, so as to maintain stable operation of the water treatment system and effectively cut daily operation and maintenance costs.
Different from submerged and hollow fiber ultrafiltration devices, tubular ultrafiltration device arranges ultrafiltration membrane tubes inside pressure-resistant casing. The feed liquid flows inside the membrane tube at a high flow rate, and clean permeate penetrates the tube wall outward to complete solid-liquid separation. Its open runner will not be blocked easily by sludge, fibers and oil dirt, which makes it the preferred pretreatment equipment for harsh wastewater in chemical, mining, food processing and printing & dyeing industries. Our tubular membrane materials include polymer PVDF, PTFE organic tubular membranes and alumina ceramic tubular membranes to match different corrosive and high-temperature wastewater working conditions.
A complete set of tubular ultrafiltration device consists of tubular membrane component, carbon steel/304 stainless steel frame, raw water circulating booster pump, automatic backwashing valve manifold, online chemical cleaning dosing system, front security liquid filter and PLC intelligent control cabinet. After being treated by the tubular ultrafiltration device, wastewater impurities are greatly removed, which greatly reduces the pollution load of subsequent nanofiltration and reverse osmosis equipment. Every finished tubular ultrafiltration device will go through hydraulic pressure tightness test and 72h full-load aging operation test before delivery to eliminate hidden dangers such as pipe leakage and program failure during field operation.
We provide diversified ultrafiltration products to match different project demands. Customers with general industrial water purification demands can select standard models Filter Ultrafiltration Machine for Industrial Water Filtration . For overseas projects requiring overall system customization, you can get tailored solutions via Reliable Ultrafiltration System Equipment Manufacturer . Users with low-concentration clean water treatment demands can choose mature hollow fiber equipment Hollow Fiber Ultrafiltration Membrane Equipment When dealing with high-temperature strong acid and alkali wastewater, ceramic tubular ultrafiltration is recommended Industrial Ceramic Membrane Ultrafiltration Membrane Large-scale factory wastewater renovation projects can adopt large-volume tubular ultrafiltration skids Large Scale Ultrafiltration Equipment for Industrial Water
The frame and pipeline adopt SUS304 stainless steel as standard configuration; SUS316L stainless steel is selected for oily wastewater and corrosive medium to avoid electrochemical corrosion. The control system supports local touch screen operation, with optional remote cloud monitoring function to realize unattended operation. Our company provides spot supply, OEM processing, customized drawing production and complete CE certification documents to help overseas customers smoothly finish customs clearance and project acceptance work.
Tubular ultrafiltration device adopts pressure-driven internal cross-flow filtration mode. The built-in PLC control system automatically switches three working modes: normal water production, automatic backwashing and periodic chemical cleaning.
Raw wastewater first filters out large solid impurities through the front liquid filter, and is pumped into the inner cavity of tubular membranes at a high flow velocity. Under transmembrane pressure, water molecules and small soluble substances pass through the membrane tube wall to form clear permeate water for subsequent reuse or advanced treatment. Pollutants such as sludge and oil are trapped inside the membrane tube. High-speed flowing feed liquid continuously scours the inner wall of the membrane tube to restrain pollutant deposition and slow down the rise of system pressure difference.
As pollutants accumulate on the membrane inner wall, the inlet and outlet pressure difference of membrane modules gradually rises. Once the pressure difference hits the set alarm value, the system automatically switches the valve group for reverse flushing with clean produced water to wash off loose dirt inside tubular membranes, and concentrated waste liquid is discharged out of the device. The whole backwashing process takes only 3–7 minutes without long-term system shutdown.
Routine backwashing cannot remove firmly adsorbed organic fouling and oil dirt. The matched dosing system uses acidic and alkaline cleaning agents for circulating soaking cleaning to restore the original flux of tubular membranes and keep the device operating efficiently for a long period.
Organic tubular membrane material: PVDF / PTFE
Ceramic tubular membrane material: High purity alumina
Nominal pore size: 0.02 ~ 0.1 μm
Interception rate of suspended solids, oil and colloids ≥99%
Effluent SDI value ≤ 5
Single set processing capacity: 2m³/h ~ 200m³/h
Operating transmembrane pressure: 0.15 ~ 0.4 MPa
Applicable liquid temperature: 5℃ ~ 90℃ (ceramic type up to 150℃)
Applicable pH range: 2 ~ 12 (ceramic type pH 0–14)
Comprehensive water recovery rate: 70% ~ 85%
Adjustable backwash cycle: 10 ~ 60 min; chemical cleaning cycle: 1 ~ 3 months
Frame & pipeline material: SUS304 / SUS316 stainless steel
Control mode: PLC + touch screen full automatic control, remote monitoring optional
Standard accessories: Circulation pump, backwash pump, acid-base dosing tank, pressure transmitter, front-end liquid filter
All tubular ultrafiltration devices are produced in strict accordance with ISO9001 international quality management system, and export products are equipped with official CE certification to satisfy global market access standards.
Incoming material inspection: Tubular membrane elements, steel frames, pumps, valves and electrical components are sampled and tested before warehousing to block unqualified raw materials from the source.
Production process inspection: QC inspects membrane assembly, pipeline welding, circuit wiring and instrument calibration item by item, and establishes traceable quality archives for each production process.
Factory delivery inspection: Each finished device must pass water pressure test and continuous full-load aging test before leaving the factory to eliminate potential operation faults.
Export packaging & delivery cycle: Sealed moisture-proof, shock-proof and rust-proof wooden cases are adopted for ocean transportation packaging. Standard products are in stock for urgent orders; customized tubular ultrafiltration devices are delivered within 15–30 working days.
With standardized operation and maintenance, organic tubular membranes have a service life of 3–5 years, while ceramic tubular membranes can be used stably for 8–12 years. We supply global spare parts and free lifetime remote technical guidance for all cooperative clients and engineering partners.
Petrochemical industry: Treatment of oily wastewater, waste lubricating liquid and high-sludge chemical wastewater
Printing & dyeing industry: Removal of chroma, suspended matter and textile fiber in printing and dyeing wastewater
Food & beverage industry: Clarification treatment of vegetable juice, syrup, fermentation broth and food washing wastewater
Mining industry: Purification and reuse of mineral processing wastewater and oily mine wastewater
Environmental wastewater reuse project: Pretreatment of high-concentration wastewater before nanofiltration and reverse osmosis system
Q1: What are the core advantages of tubular ultrafiltration device compared with hollow fiber ultrafiltration equipment?
A: Tubular ultrafiltration owns open internal flow channels with strong anti-blocking performance, suitable for high solid and oily wastewater. It supports online physical scrubbing cleaning, has stronger pollution resistance and longer service life, while hollow fiber membranes are easy to be blocked by sludge and fibers under high pollutant load.
Q2: Can water flow rate, pipeline material and automatic operation logic be customized according to customers’ on-site water quality reports?
A: Yes. Our technical team matches tubular membrane specifications, pump power and pipeline materials based on actual water quality data, optimizes backwashing and chemical cleaning procedures, and formulates targeted non-standard design schemes.
Q3: What are the delivery cycles of standard stock tubular ultrafiltration devices and customized modified equipment respectively?
A: Conventional standard equipment represented by Large Scale Ultrafiltration Equipment for Industrial Water... can be delivered within 4–7 working days; customized tubular ultrafiltration devices with structural and parameter adjustments take 15–30 working days according to processing difficulty.
Q4: What pre-filter devices should be installed at the water inlet of tubular ultrafiltration device?
A: It is recommended to install coarse filter + multi-media filter + liquid filter at the front end to intercept large particle impurities, prevent scratches on the inner wall of tubular membranes and reduce the overall pollution load of membrane components.
Q5: Which components of tubular ultrafiltration device are covered by the factory official warranty?
A: Stainless steel frame, pumps, valve bodies, PLC control cabinet and detection instruments enjoy a 1-year global warranty; tubular membrane elements are consumables and not included within the warranty scope.
Q6: Can multiple tubular ultrafiltration devices operate in parallel to improve the overall wastewater treatment capacity of the water station?
A: Parallel operation is fully supported. Multiple tubular ultrafiltration devices are connected to the main water pipeline with unified centralized automatic control, which is convenient for customers to expand processing capacity in batches with the expansion of factory production scale.
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