0.5 T/H Two-Stage Industrial RO Systems Water Purification
This compact, skid-mounted water treatment system is engineered for 0.5 m³/h (500 L/h) rated permeate flow, built for reliable continuous or scheduled operation. Combining pre-treatment (quartz sand, activated carbon, ion-exchange softening), precision filtration, and two-stage reverse osmosis (RO) into a single integrated unit, it delivers ultra-high-purity water with conductivity as low as 2–10 μS/cm, ideal for laboratory, pharmaceutical, food & beverage, electronics, and high-purity industrial applications.
Perfect for facilities requiring consistent, high-quality purified water with low dissolved solids—such as laboratories, dialysis centers, cosmetics manufacturing, bottled water production, and boiler feed systems—the system ensures reliable, ultra-pure water on demand.
5.0
design customization
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Core Treatment Process
⚙️ Quartz Sand Filtration
Removes suspended solids, sediment, rust, and large particulates to protect downstream components and prevent clogging.
⚙️ Activated Carbon Filtration
Eliminates chlorine, organic compounds, unpleasant tastes, odors, and residual color, improving water aesthetics and protecting the RO membrane from oxidation.
⚙️ Ion-Exchange Softening
Reduces water hardness (Ca²⁺/Mg²⁺ ions) to prevent scale buildup on the RO membrane surface, extending membrane lifespan and maintaining consistent system performance. Equipped with an automatic multiport valve for timed regeneration cycles.
⚙️Precision Cartridge Filtration (5 μm)
A final polishing stage before the first RO stage, removing fine particulates and protecting the high-pressure pump and membrane elements from fouling.
⚙️ First-Stage Reverse Osmosis (RO I)
The primary purification stage, removing approximately 95–98% of dissolved salts, heavy metals, bacteria, and viruses. The first-stage permeate serves as feed water for the second RO stage, while concentrate is discharged.
⚙️Second-Stage Reverse Osmosis (RO II)
A secondary polishing stage that further treats the first-stage permeate, achieving a combined salt rejection rate of ≥99% and producing ultra-high-purity water with significantly lower conductivity than single-pass RO systems.
Technical Specifications
| Parameter | Specification |
| Rated Permeate Flow Rate | 0.5 m³/h (500 L/h) |
| Operation Mode | Continuous / Scheduled |
| Treatment Stages | 6 (Sand → Carbon → Softener → Precision Filter → RO I → RO II) |
| RO Configuration | Two-stage (double-pass), 5 × 4040 membrane elements (3 + 2) |
| Combined RO Rejection Rate | ≥98% (TDS) |
| Permeate Conductivity | 2–10 μS/cm (typical, depending on feed water quality) |
| Pre-Treatment Tanks | 3 × FRP tanks (sand, carbon, softener) with automatic multiport valves |
| Precision Filter | 5 μm cartridge, 304 stainless steel housing |
| Pumps | Raw water pump + 1st-stage high-pressure pump + 2nd-stage high-pressure pump (SS304 vertical multistage) |
| Control System | Push-button control panel + automatic multiport valves (pre-treatment) |
| Monitoring | Dual conductivity meters (RO I & RO II permeate), 4 pressure gauges, 4 rotameters |
| Operating Pressure | 0.8–1.0 MPa (RO section) |
| Power Supply | 220V / 380V, 50/60Hz (Customizable) |
| Frame Material | 304 stainless steel with lockable caster wheels |
| Certification | CE Compliant |
Key Features
Two-Stage (Double-Pass) RO Design
Two consecutive RO stages deliver ultra-high-purity water with conductivity as low as 2–10 μS/cm—far superior to single-pass systems for demanding applications.
Complete Pre-Treatment
Three FRP filter tanks (quartz sand, activated carbon, softener) with automatic multiport valves ensure consistent feed water quality and protect downstream RO membranes.
High-Efficiency Membrane Configuration
5 × 4040 stainless steel membrane housings (3 for first stage, 2 for second stage) with high-efficiency RO membrane elements, delivering stable 0.5 m³/h permeate output.
Dedicated Pump for Each Stage
Equipped with a raw water feed pump, a first-stage high-pressure pump, and a second-stage high-pressure pump—all vertical multistage centrifugal pumps in SS304—ensuring optimal pressure and flow for each RO stage.
Industrial-Grade Build
304 stainless steel frame, precision filter housing, membrane housings, and piping for corrosion resistance and long service life; FRP pre-treatment tanks with UV-resistant winding.
Comprehensive Monitoring
Push-button control panel with dual inline conductivity meters (first-stage & second-stage permeate), four pressure gauges, and four rotameters for real-time system performance monitoring.
Automatic Pre-Treatment Valves
Pre-treatment tanks equipped with automatic multiport valves for timed backwashing, rinsing, and regeneration, reducing manual maintenance.
Mobile & Compact
Mounted on a 304 stainless steel frame with lockable caster wheels for easy relocation and flexible installation.
Low Maintenance
Simple, robust design minimizes routine maintenance, making it ideal for users without dedicated water treatment staff.
OEM/ODM Support
Fully customizable flow rates, configurations, and branding to meet your specific market needs.
Benefits for Your Business
• Ultra-High-Purity Water Output: Two-stage RO technology ensures consistently low conductivity and TDS, suitable for laboratory, pharmaceutical, electronics, and high-purity industrial applications where single-pass RO is insufficient.
• Extended Membrane Lifespan: Comprehensive pre-treatment (sand, carbon, softener) protects the RO membranes from scaling, fouling, and oxidation, reducing replacement costs and downtime.
• Stable & Reliable Performance: Dedicated pumps for each RO stage, combined with comprehensive pressure and flow monitoring, ensure consistent permeate quality and quantity under varying feed water conditions.
• Space-Efficient & Mobile Design: The all-in-one skid package with caster wheels saves valuable floor space and allows flexible relocation, compared to separate, fixed-installation units.
• Simple Operation: Push-button controls with clear gauge and meter readings require minimal training, making the system accessible to operators without specialized water treatment expertise.
• Versatile Applications: Ideal for laboratories, dialysis centers, pharmaceuticals, cosmetics, food & beverage, bottled water, electronics manufacturing, boiler feed, and any application requiring ultra-pure water.
📦 What’s Included
💼 OEM/ODM Services
As a professional water treatment equipment manufacturer, we offer comprehensive OEM/ODM solutions to meet your unique requirements:
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Shandong Qingqingquan Environmental Protection Technology Co., Ltd. is a professional water treatment equipment manufacturer integrating R&D, production, and sales, focusing on providing water treatment equipment for residential, commercial, and industrial applications to global customers.
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Email: sdqingqingquan@gmail.com
WhatsApp: +86 152 6994 7255
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