Ultrafiltration

Special membrane for sewage treatment

High-Flux Flat-Sheet Membrane DMBR

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Core advantages of the product

A revolutionary product disrupting traditional MBR

High flux (30~35LMH)

After five years of experimental research and engineering applications, the membrane technology R&D team has successfully developed a special ultrafiltration membrane —— large-flux flat sheet membrane DMBR. Using PVDF + EVOH special composite material modification technology to improve the membrane formulation and process, optimizing the membrane pore structure, reducing the transmembrane resistance, making the membrane sheet have better hydrophilic properties, the membrane flux is increased by 30% compared to traditional formulations, offering better cost-effectiveness.


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Under the same influent conditions:

Lower investment and price costs

The DMBR membrane flux is about 0.5~0.8 times that of traditional MBR flat sheet membranes, approximately 1-~1.5 times that of MBR hollow fiber membranes. In the same circumstances, less membrane area is required, the investment is comparable to MBR hollow fiber membranes, but 50% lower than traditional MBR flat sheet membranes, resulting in even lower investment costs.


Lower operation and maintenance costs

Under the same operating conditions, DMBR membranes require less usage, smaller aeration volume, reduced blower energy consumption, equivalent to MBR hollow fiber membranes, but 50% lower than traditional MBR flat sheet membranes. DMBR membranes have a lower cleaning frequency, consume less chemicals, saving around 50% on chemical costs compared to traditional flat sheet MBR membranes.


Lower membrane depreciation costs

The service life of DMBR membranes is more than 5 years, whereas MBR hollow fiber membranes last only 1~3 years, resulting in lower membrane depreciation costs.


Comparison of DMBR membranes with traditional MBR membranes (using 10000t/d municipal wastewater as an example):

Item

DMBR

Hollow Fiber MBR Membrane

Traditional Flat Sheet MBR Membrane

Mechanical Strength

Good, no fiber breakage

14900㎡

Good, no fiber breakage

Anti-Pollution Performance

Strong, superior hydraulic conditions of flat sheet membranes

Rapid pollution

Strong, superior hydraulic conditions of flat sheet membranes

Service Life

Over 5 years, individual membranes can be repaired

2-5 years, non-repairable

Over 5 years, individual membranes can be repaired

Cost per Unit Area of Membrane Element

Approximately twice that of MBR hollow fiber membranes

Average

Approximately twice that of MBR hollow fiber membranes

Designed Membrane Flux

30~35LMH

13~17LMH

18~25LMH

Number of Membranes Used

14900㎡

28940㎡

20900㎡


Product specifications and performance

Membrane Element Model

Membrane Area

Specifications (LxWxH mm)

M08

0.80

1040×488×7.5

M15

1.50

1776×488×7.5

Pore size: <0.1um

Application: Solid-liquid separation in membrane bioreactors

Filtration method: Suction filtration


Product application areas

Industrial wastewater deep treatment | Replacing traditional submerged ultrafiltration | Municipal wastewater upgrading | Village and town sewage treatment | Reclaimed water treatment


Article link: /Ultrafiltration/122.html

Specialized Spiral-Wound Ultrafiltration Membrane SPUF

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Core advantages of the product

High flux, no fiber breakage in spiral wound structure; only replace the membrane core, not the housing.


Highly anti-pollution specially modified proprietary membrane sheet

Molecular design and precise interfacial polymerization technology —— enhancing the bridging polyamide multi-dimensional structure of the functional separation layer, improving chemical resistance;

Special modified proprietary formula + surface modification treatment technology —— the membrane material approaches electrical neutrality, the membrane surface is smoother, less prone to adsorb pollutants and microorganisms, better anti-pollution performance.


★Anti-pollution membrane element structural design

1.Optimized flow channel design, ensuring uniform distribution of feed water, reducing "dead water" zones within the channels, more resistant to fouling blockages, cleaning frequency reduced by over 40%.

2.Shorter membrane leaves, thus the distance from the membrane bag end to the product water pipe is shorter, the product water permeate flux is more evenly distributed along the membrane sheet, significantly reducing the rate of fouling.

3.Low-pressure drop flow channel design, low initial membrane pressure difference, the time it takes for the cleaning pressure difference to reach the boundary value can be extended by 80%, reducing cleaning frequency.

Product specifications and performance

Model

Ultrafiltration Cut-off Molecular Weight or Pore Size

Effective Membrane Area m²

Flow Channel Type and Width

Appearance

SPUF-1n-8040-N80-G

10nm

18

Diamond-shaped 80mil

Fiberglass Reinforced Plastic

SPUF-5n-8040-N30-G

50nm

34

Diamond-shaped 32mil

Fiberglass Reinforced Plastic

SPUF-10n-8040-N45-G

100nm

27

Diamond-shaped 45mil

Fiberglass Reinforced Plastic

Product application areas

Mainly used for water supply treatment scenarios, turbidity removal scenarios.

Article link: /Ultrafiltration/110.html