STRO / STNF Nano-filtration Reverse Osmosis Spacer Tube Module for Industrial Waste Water Treatment

• Customization: Available
• Membrane Type: Spiral
• Type: RO
• Max. Operation Pressure: 75bar
• Feed Spacer: Open Type
• Stable Rejection: 98.5%
• pH Continuous: 3-11
• Construction: Spiral Wound Element with GRP
• Transport Package: Wooden Box
• Trademark: RisingSun
• Origin: China
• HS Code: 84219990
• Production Capacity: 800 Pieces/Month

Product Description

STRO / STNF Nano-filtration Reverse Osmosis Spacer Tube Module for Industrial Waste Water Treatment
RisingSun Membrane's Spacer Tube (ST) Module can be used for sea water desalination and waste water treatment. We can offer either reverse osmosis or nanofiltration membrane sheet in order to deal with different kinds of waste water.  

Special Membrane Feed Spacer

We use a very special ladder type feed spacer, which only come into marginal contact with their neighbouring membrane sheet. In this way, the spacers are able to minimise the resistance that is exerted on the feed flow.
This special design also greatly reduces the build up of fouling materials compared with common element.

Special Configuration with flow direction
 

Color Instruction Green: Feed Wate Blue: Permeate Red: Seals and O-rings On this ST module the feed is from the top. The feed water is diffused by the top seal plate to send the feed water evenly around the top of the membrane element. The feed water flows down through the membrane element, as it does pure water permeates and flows out thourgh centre collection device into the space around the tie rod and flows down to the permeates outlets. The concentrated feed water is channelled by the bottom seal plate to the bottom HP connection and out of the module.

Features
1. Spacer tube (ST) module is high strength design, up to 120 bar operating pressure.
2. Open feed spacer with low flow resistance and concentration polarization.
3. Spiral wound structure with more membrane area. 
4. Membrane is long using life.
5. Competitive price and fast delivery.
6. Cross replacements: Nanostone (Rochem).

STRO Membrane element specification (operation pressure 90bar)
 

Type	STRO		STNF
Model	STRO3-8035	STRO5-8042	STNF2-8042
Membrane sheet type	RO3	RO5	NF2
Effective membrane area (m^2)	25	27	27
Construction *	Spiral Wound Element with GRP Outerwrap,Brine Seal
Feed flux range (m^3/h)	5.5-12		5.5-12
Recommend flux (m^3/h)	10		10
Permeate flux ** (m^3/d)	23	24	25
Nominal rejection ** (%)	98.5	99.5	98.0
Minimum rejection (%)	97.5	99.0	96.0
Feed spacer	Special open type (ladder type)
Element Dry Weight	18kgs
Max. element pressure drop (bar)	1.0		1.0
Max. operation pressure (bar)	90		90
Max. operation temperature (ºC)	45		45
pH continuous operation	3-11		3-11
pH CIP	2-12		2-12
Chlorine tolerance (ppm)	≤0.1		≤0.1

Brine seal to be installed in flow direction on the low pressure side/element outlet side.
** RO3 test condition: 2,000mg/l NaCl solution at 15.5bar applied pressure, 15% recovery, 25ºC; RO5 test condition: 32,000mg/l NaCl solution at 55bar applied pressure, 8% recovery, 25ºC; NF2 test condition: 2,000mg/l MgSO4 solution at 7bar, 15% recovery, 25 ºC. There may have about ±15% change for individual module flow rate.
Performance specifications shown above are nominal values. Individual module permeate flow rate may vary based on inlet water condition. 
Note: We could offer any membrane sheet to make ST membrane module, for example, STRO4-8035, STRO5-8035, STRO1-8042, STNF1-8042, etc.


 

Model	8035	8042
Total tie rod length A (mm)	1125	1305
Vessel length B (mm)	970	1150
Vessel to top of frame D (mm)	75	75
Inlet & outlet connections (inch)	1 inch grooved coupling	1 inch grooved coupling
Permeate connection (mm)	2 x G3/8"-90° elbow for 9mm  hose

 

Operation Pressure (bar)	75	90
Membrane module diameter C (mm)	216	220

Applications

Sea Water
Industrial Waste water
Traditional spiral wound RO/NF concentrates.
Landfill leachate






Our Team


Why us?
1. We can offer different MWCO from 150Dalton to 3000Dalton membrane sheet.
2. Our membrane sheet performance is the best, but price is lower.
3. Fast delivery time due to we have a great number membrane sheet at stock.
4. Regarding your application, our technical staff can recommend the suitable membrane model.
5. We can cut the membrane sheet to the shape as per customer's request.
6. Free testing sample is available.


FAQ

1. Q: What does your company specialize in?
    A: We are a leading manufacturer of filter membrane products, based in Beijing, China, with over a decade of experience.

2. Q: What types of filter membrane products do you offer?
    A: We offer MF, UF, NF & RO membranes ; A perfect cross replacement ( Dupont, Koch, Suez, Pentair, Berghof, Rochem) in high quality but economic cost and easy cooperation; External MBR (Tubular membrane), Flat MBR, spiral MBR, DTRO, STRO devoting to landfill leachate, ZLD, high salt water etc; Tubular Anode cell & Spiral UF Membrane products for the Ecoat /electrocoating/ KTL/CED/electro deposition industry.

3. Q: Can you customize membrane products?
    A: Yes, we offer OEM service.

4. Q: What is the typical lead time for order fulfillment?
    A: Usually 2-3 weeks

5. Q: What is payment methods do you accepts?
    A: We prefer T/T.

6. Q: What kind of logistics do you have?
    A: FedEx / DHL / By air / By Sea.

7. Q: Can you supply free sample?
     A:Yes, we can supply free samples, the freight charge should be on your side.

 

8. Q: Where are your customers located?
     A: Till 2023, Our clients in 94 countries worldwide, mainly in USA, Korea, UK, France, Russia, Germany, Czech, India, Spain, Brazil etc.