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BW (Brackish Water) membrane is an aromatic polyamide composite membrane element for desalting brackish Water developed by Hangzhou E-MEM Environmental Technology co., LTD.
BW has the characteristics of low operating pressure, high flux, and high rejection rate. It has a high removal rate for dissolved salts, TOC, SiO2, and other substances, especially for the preparation of high purity water in the electronic and power industries.
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Delivery and return
Delivery and return
Next day delivery in store
Buy before 6pm to receive your order next day.FREE
Next day delivery
Orders before 6pm from Monday to Saturday (or before 1pm on Sunday) will be delivered Next working day (except Northern Ireland and Highlands). Orders placed after 6pm (after 1pm on Sunday) or for Northern Ireland and Highlands will be delivered in 2 working days.29 USD
Drop Point
In 2-3 working days. Pick up your parcel in one of the many diferent collection points available and during a wide range of hours.39 USD
Same day delivery in London:
Place your order before 13:00 to get it today!. If you order later on, you’ll receive it the next day and if you order on Sunday, you’ll receive it the next working day.59 USD
Shipping Information
Shipping Information
SHIPPING
Complimentary ground shipping within 1 to 7 business days In-store collection available within 1 to 7 business days Next-day and Express delivery options also available Purchases are delivered in an orange box tied with a Bolduc ribbon, with the exception of certain items See the delivery FAQs for details on shipping methods, costs and delivery timesComposition and care
Composition and care
Characteristics of wood :
- Hard, compact , fiberous and porous
- Good wood gives a rich, warm and beautiful surface.
Wood is used for the construction of:
- Floor, Furniture, Walls
- Incidental furnishing (lampshades, picture frames)
- Kitchen & restaurant ware
Description
E-MEM 8040 Industrial RO Membrane – High-Flux 8″×40″ Element
The E-MEM 8040 Industrial RO Membrane is a premium aromatic polyamide composite element designed for high-performance industrial and commercial water systems. It offers exceptionally high flux and salt-rejection while operating at lower pressure requirements. It’s built to treat brackish water and municipal sources with conductivity and “dissolved solids” levels up to ~8000 ppm.
Because it’s designed for durability and efficiency, it helps reduce pump and energy costs while delivering consistent permeate quality.
Key Features
- High Salt Rejection: Delivers ≥99% salt rejection under specified conditions.
- Low Pressure Requirement: Cuts operating cost thanks to lower feed-pressure demand—helping system economy.
- Large Active Area: Enables higher daily output from each element; suitable for industrial scale up.
- Broad Water Source Compatibility: Suitable for surface water, groundwater, municipal supply and brackish feed up to 8 000 ppm TDS.
- Robust Operating Limits: Maximum feed-pressure ≈4.14 MPa (600 psi), max feed-temperature ~45 °C, free-chlorine <0.1 ppm, SDI ≤ 5.
Technical Specifications
- Membrane size: 8″ diameter × 40″ length (8040)
- Typical active area: ~37 m² (400 ft²) for model 8040.
- Max operating pressure: 600 psi (~4.14 MPa)
- Max feed water temperature: 45 °C
- Max feed SDI: 5
- Feed free chlorine maximum: <0.1 ppm
Why Choose the E-MEM 8040 Industrial RO Membrane?
If you oversee a commercial or industrial water-treatment system, the E-MEM 8040 offers strong performance with cost-effective operation. Because it works at lower pressure while maintaining high flux and rejection, you’ll benefit from lower pump and infrastructure costs. In addition, the wide source-water compatibility means you can deploy it in many settings—from municipal feed, borehole water, to brackish water reuse. Moreover, its large area and robust build reduce downtime and extend service intervals.
Installation & Maintenance Tips
- Ensure feed water meets pre-treatment requirements: SDI ≤ 5, free-chlorine <0.1 ppm.
- On initial startup, flush new elements at low pressure for ~15-25 minutes, then at full design pressure for ~60-90 minutes.
- Monitor differential pressure, permeate conductivity, and flow rate—rising values may indicate fouling or scaling.
- Clean the membrane as per the manufacturer’s chemical-cleaning guidance (pH and temperature limits).
- Store spare elements wet or in 1% sodium bisulfite solution if unused for an extended period.
