Ultrafiltration equipment reverse osmosis combined system is the most classic two-stage membrane separation process for industrial pure water preparation, where ultrafiltration serves as advanced pretreatment and reverse osmosis completes deep desalination and ion removal. Our factory supplies a full lineup of industrial liquid filter and membrane water treatment devices, including packaged Standard Containerized RO Unit, outdoor skid-mounted Outdoor Industrial Reverse Osmosis Equipment, high-flow Large-scale RO Equipment, drawing-type Industrial RO System and compact Integrated Reverse Osmosis Unit, matched with supporting ultrafiltration assemblies to form complete ultrafiltration + RO integrated water making solutions. This article systematically explains the structural composition, collaborative working mechanism, unified technical indicators, full-process quality inspection standards and diversified industrial application scenarios of ultrafiltration equipment reverse osmosis combined systems. Global water treatment contractors, factory procurement managers and environmental engineering companies can master the operating logic, stable delivery capacity and comprehensive after-sales service of our combined membrane systems, reasonably configure ultrafiltration and RO matching proportions to stabilize produced water quality and reduce long-term system operation and maintenance expenditure.
Ultrafiltration Equipment Reverse Osmosis Combined Water Treatment System
Ultrafiltration equipment reverse osmosis combined system is the most classic two-stage membrane separation process for industrial pure water preparation, where ultrafiltration serves as advanced pretreatment and reverse osmosis completes deep desalination and ion removal. Our factory supplies a full lineup of industrial liquid filter and membrane water treatment devices, including packaged Standard Containerized RO Unit, outdoor skid-mounted Outdoor Industrial Reverse Osmosis Equipment, high-flow Large-scale RO Equipment, drawing-type Industrial RO System and compact Integrated Reverse Osmosis Unit, matched with supporting ultrafiltration assemblies to form complete ultrafiltration + RO integrated water making solutions. This article systematically explains the structural composition, collaborative working mechanism, unified technical indicators, full-process quality inspection standards and diversified industrial application scenarios of ultrafiltration equipment reverse osmosis combined systems. Global water treatment contractors, factory procurement managers and environmental engineering companies can master the operating logic, stable delivery capacity and comprehensive after-sales service of our combined membrane systems, reasonably configure ultrafiltration and RO matching proportions to stabilize produced water quality and reduce long-term system operation and maintenance expenditure.
The ultrafiltration equipment reverse osmosis combined system takes PVDF hollow fiber ultrafiltration equipment as the front-end protective pretreatment unit and reverse osmosis membrane system as the core desalination unit. The complete set is composed of raw water tank, multi-media filter, security filter, ultrafiltration membrane module, UF cleaning system, intermediate water tank, high-pressure pump, RO membrane assembly, RO chemical dosing device, PLC centralized control cabinet and supporting pipeline frame. Ultrafiltration intercepts colloids, suspended solids, bacteria and macromolecular organic pollutants in raw water, greatly lowering the pollution risk of expensive RO membranes and extending the service life of reverse osmosis elements. All finished combined systems pass hydraulic pressure test, 72h continuous linkage operation debugging before factory delivery to adapt to 24-hour uninterrupted industrial water production.
We provide diversified RO host equipment to pair with ultrafiltration devices for different project demands. For remote field projects with poor on-site construction conditions, sealed and movable Standard Containerized RO Unit can be matched with ultrafiltration equipment to realize plug-and-play water production. For outdoor chemical plant, mining open-air water stations, anti-corrosion Outdoor Industrial Reverse Osmosis Equipment cooperates with ultrafiltration assemblies to resist harsh ambient temperature and humidity changes. For large industrial parks and centralized pure water stations, high-volume Large-scale RO Equipment works with array-type large ultrafiltration equipment to satisfy tons-level continuous water supply demand. For conventional factory workshop pure water preparation, the universal Industrial RO System forms standard UF+RO technological flow with ordinary ultrafiltration equipment. For small and medium enterprises with limited installation space, miniaturized Integrated Reverse Osmosis Unit is perfectly matched with compact ultrafiltration devices to save floor area.
The whole system frame and main pipelines adopt SUS304 stainless steel as standard configuration; SUS316L stainless steel is optional for high-salinity, corrosive raw water. The unified PLC control platform realizes synchronous automatic backwashing of ultrafiltration and automatic flushing of reverse osmosis membrane elements, supporting remote real-time data monitoring and abnormal pressure alarm functions. As the original manufacturer without intermediate dealers, we provide customers with process flow design calculation, field installation guidance, membrane element replacement supply and lifelong remote technical training services.
The whole water treatment process is divided into ultrafiltration pretreatment section and reverse osmosis desalination section, relying on pressure driving to complete graded purification of raw water through different membrane aperture characteristics.
Ultrafiltration runs under cross-flow filtration mode with 0.01~0.1μm membrane pore size. Under low-pressure driving, water molecules pass through the hollow fiber membrane wall to produce ultrafiltration permeate water, while suspended matter, colloids, microorganisms and organic pollutants are trapped on the membrane surface. Timed automatic backwashing and regular chemical cleaning remove fouling substances on the membrane surface, ensuring stable UF water yield and effectively protecting the subsequent reverse osmosis membrane from particle contamination.
Ultrafiltration produced water enters the intermediate water tank and is pressurized by a high-pressure pump to reach the operating pressure required for reverse osmosis. RO membrane has nanoscale ultra-small pore structure; under high pressure, pure water penetrates the RO membrane layer, while inorganic salts, heavy metal ions, residual small molecular organics are intercepted in the concentrated water side to realize deep desalination and purification of water quality. RO system is equipped with automatic concentrated water discharge and membrane flushing programs to slow down scaling and pollution of RO membranes.
Ultrafiltration removes most particulate pollutants to reduce the SDI value of inlet water for reverse osmosis below 5, which is the core guarantee for long-term stable operation of RO system. Reverse osmosis undertakes deep desalination to finally obtain qualified industrial pure water. The two sets of equipment coordinate automatically through the central control system to realize unmanned continuous water production.
Membrane material: Modified hydrophilic PVDF hollow fiber ultrafiltration membrane
Membrane aperture: 0.01 ~ 0.1 μm
Inlet water SDI after UF treatment: ≤5
System water recovery rate of ultrafiltration section: 78% ~ 88%
Operating pressure: 0.10–0.35 MPa
RO membrane type: Composite polyamide spiral wound reverse osmosis membrane
Desalination rate of single-stage RO membrane: ≥99%
Operating pressure: 1.0–1.6 MPa (according to raw water salinity)
Overall pure water recovery rate of RO section: 60% ~ 75%
Inlet water requirement: SDI ≤5, turbidity ≤0.1 NTU
Applicable raw water temperature: 5℃ ~ 40℃
Applicable pH range for long-term operation: 2 ~ 11
Control mode: Touch screen + PLC integrated automatic linkage control
Main material of frame & pipeline: SUS304 stainless steel (standard), SUS316L (customized for anti-corrosion)
All production, assembly and debugging procedures of ultrafiltration equipment reverse osmosis combined system strictly comply with ISO9001 international quality management system, and all finished products pass CE certification to meet the access standards of global overseas markets.
Incoming material inspection: Ultrafiltration membrane, RO membrane, stainless steel materials, pumps, valves and electrical components are sampled and tested before warehousing to block defective raw materials at the source.
Assembly process inspection: Membrane module installation, high-pressure pipeline welding, circuit wiring and instrument calibration are inspected item by item by professional QC personnel, with traceable quality files for every process node.
Offline factory test: Each complete UF+RO combined system must pass air tightness test, full-load 72-hour linkage operation test and program debugging before shipment to eliminate potential operation failures on site.
Export packaging: Adopt sealed moisture-proof, shock-proof and rust-proof reinforced packaging to adapt to long-distance ocean transportation for overseas engineering orders.
With standardized operation and maintenance management, the service life of ultrafiltration membrane is 5–8 years, and the service life of reverse osmosis membrane can reach 2–3 years. We provide global spare parts delivery service and permanent free remote technical support for all cooperative customers and engineering partners.
Electronic & semiconductor industry: Production pure water, ultra-pure water pretreatment preparation
Food and beverage processing: Drinking water, beverage batching water, food production purified water manufacturing
Pharmaceutical industry: Purified water for pharmaceutical production, injection water front-end preparation
Electroplating & surface treatment industry: Electroplating bath make-up pure water, circulating water purification
Boiler feed water & thermal power industry: Boiler softened desalinated water preparation to prevent pipeline scaling
Daily chemical industry: Cosmetics, detergent production process pure water supply
Q1: Why must reverse osmosis equipment be equipped with ultrafiltration equipment as pretreatment?
A: Raw water contains a large amount of colloids, suspended solids and biological pollutants. Direct feeding into RO will cause rapid membrane fouling and scaling, greatly shortening RO membrane service life. Ultrafiltration can effectively reduce inlet water SDI value to protect reverse osmosis membranes and lower equipment maintenance costs.
Q2: Can your company customize the matching proportion of ultrafiltration equipment and reverse osmosis equipment according to customers’ water yield and raw water quality?
A: Yes. Our technical team designs matched ultrafiltration membrane quantity and RO membrane loading volume according to actual raw water report and required pure water flow to provide full non-standard customized combined system solutions.
Q3: What is the delivery cycle of standard UF+RO combined equipment and customized combined water treatment systems?
A: Conventional Standard Containerized RO Unit supporting ultrafiltration has spot inventory with delivery within 5–8 working days; customized ultrafiltration equipment reverse osmosis integrated system needs 15–30 working days according to system flow and configuration complexity.
Q4: What supporting pretreatment devices need to be configured before the ultrafiltration inlet of the combined system?
A: Multi-media filter + activated carbon filter + 5μm security filter is recommended to intercept large particle sediment, residual chlorine and macromolecular impurities, reduce the pollution load of ultrafiltration membranes.
Q5: Which components of the ultrafiltration & reverse osmosis combined system are covered by the warranty?
A: Stainless steel frame, water pumps, valves, PLC control cabinet and instrument components enjoy 1-year global free warranty service; ultrafiltration membranes and reverse osmosis membranes belong to consumable filter elements and are not included in the warranty scope.
Q6: Can multiple sets of ultrafiltration equipment reverse osmosis systems run in parallel to expand the total pure water output capacity?
A: It is completely achievable. Multiple sets of combined units can be connected in parallel on the main water pipeline with unified central linkage control, which facilitates enterprises to expand pure water production capacity in phases with the growth of factory production scale.
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