EN
Open chanel tube membrane module（ST）
Open channel tube membrane module is designed for high salt and high COD water bodies. This module can withstand pressure up to 120 bar and COD up to 120000 mg/L by optimizing material flow channel and sealing design. Simultaneously, rolling design contributed to an increased filtration area. We support personalized customization with different forms like parallel, corrugated, etc and various options for thickness of channel such as 32mil, 47mil, etc. It can deliver significant cost savings and enhanced concentration separation performance.
- Overview
- Product Parameters
- Product Applications
- Technical Features
- Recommended Products
New high‑pressure grid‑type reverse osmosis element
Spiral‑wound membrane module design
45° double‑layer open flow channel – wider and more fouling‑resistant
1–6 membrane elements in series operation
Suitable for large‑scale zero liquid discharge (ZLD) systems
High separation efficiency
High packing density – compact footprint
STRO Membrane Product Description
Product Paiameters
| MODEL |
OCRO3 8042-75 |
OCRO3 8042-90 |
OCRO3 8042-120 |
OCRO4 8042-75 |
OCRO4 8042-90 |
OCRO4 8042-120 |
|
| Product performance | Material |
Medium density |
Medium density flat sheet | Medium density flat sheet |
High density flat sheet
|
High density flat sheet | High density flat sheet |
| Active membrane area, m²(ft2) | 27.2(291) | ||||||
| Pressure, bar | 75 | 90 | 120 | 75 | 90 | 120 | |
| Permeate flow, gpd(m³/d) | 6100(23.0) | 6400(24.3) | |||||
| Minimum salt rejection, % | 98.50% | 99.00% | |||||
| Test condition | Feed spacer mil | 32mil | |||||
| Feed water NaCl, mg/L | 2,000mg/L,pH7.5 | 32,000mg/L,pH7.5 | |||||
| Pressure, psig(bar) | 225(15.5) | 800(55.0) | |||||
| Temperature, ℉(℃) | 77(25) | ||||||
| Recovery rate, % | 15 | 8 | |||||
| Max.operating conditions | Feed water flow, m³/h | 8.0-12.0 | |||||
| SDI15 | 20 | ||||||
| Temperature, ℉(℃) | 104(40) | ||||||
| Residual chlorine concentration of feed water, mg/L | <0.1 | ||||||
| Max. pressure drop for single element, psig(bar) | 7.5(0.5) | ||||||
| pH range during continuously operating | 2.0-11.0 | ||||||
| pH range during chemical cleaning | 1.0-12.0 | ||||||
| MODEL | 8035-75/90 | 8042-75/90 | 8035-120 | 8042-120 |
| Membrane component pull rod length A(mm) | 1175 | 1350 | 1175 | 1375 |
| Membrane shell length B(mm) | 1000 | 1200 | 1000 | 1200 |
| Length of feed water/wastewater C(mm) | 1220 | 1420 | 1220 | 1420 |
| Outer diameter of membrane module D(mm) | Φ219 | Φ219 | Φ220 | Φ220 |
| Feed water/Wastewater outlet(mm) | Φ32 | |||
| Water production interface(mm) | 2*Quick connect hose Interface Φ11.6 | |||
| Length of membrane module flange surface E(mm) | - | - | 1080 | 1280 |
Product Applications 
■ Mine wastewater
■ Steel (iron and steel) wastewater
■ Paper mill (pulp and paper) wastewater
● Landfill leachate
■ Coal chemical wastewater
■ Pharmaceutical wastewater
● Tannery (leather) wastewater
■ Chemical industry wastewater
■ Livestock biogas slurry (digestate)
● Electroplating wastewater
● Oilfield reinjection water
■ Reverse osmosis (RO) concentrate / brine
● Textile dyeing and printing wastewater
■ Dye wastewater
■ Circulating cooling water blowdown
Features of STRO Membrane
-
Easy to clean and maintain
-
Resistant to fouling and scaling
-
Long service life
-
Low membrane replacement cost
-
Modular design – compact and flexible
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The membrane element achieves a salt rejection rate of up to 99% under standard test conditions
