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MBR((Membrane Biological Reactor)) is an efficient and most advanced technology for municipal and industrial wastewater treatment process which combines high-efficiency membrane separation technology with conventional activated sludge process (CAS).In recent years, the membrane separation activated sludge process (Membrane Bio-Reactor) has been gaining attention as a new technology for water recycling that can protect the Earth’s limited water resources and the environment. These Hollow fiber mbr membranes are made of a cylindrical, hollow fiber structure that acts as a filter to remove impurities from wastewater or water. The hollow fiber design allows for a high surface area to volume ratio, which increases the efficiency of the membrane filtration process. Made of polyvinylidene fluoride (PVDF) material.

We are leading MBR membrane manufacturer and supplier which design, test, and produce these membranes

for use in various water treatment applications such as municipal and industrial wastewater treatment, and membrane bioreactors for the treatment of industrial effluent and other wastewater streams.

Countless biological reactor in wastewater treatment systems are being used to not only lower environmental impact by improving wastewater treatment water quality, but also to reclaim wastewater for reuse. The recycling of wastewater by MBR membrane bioreactor is prevalent all over the world as a means for dealing with serious water shortages. As the fast development company in mbr membrane, NIHAO will continue its efforts in the ever-intensifying water recycling business.

  • MBR-20-PVDF


    Item No.: MBR-20-PVDF
    Component Length A: 1850mm
    Component Width B: 655mm
    Outlet diameter: DN15
    Air intake diameter: DN15
    Component membrane area: 20
    Shell material: ABS/UPVC
    Hollow fiber membrane material: PVDF(Enhanced)
    Inner diameter of hollow fiber membrane: 0.05um
    Outer diameter of hollow fiber membrane: 1.0mm
    Outer diameter of hollow fiber membrane: 2.4mm


  • MBR-20-PVDF


    Item No.: MBR-20-PVDF
    Component Length A: 1850mm
    Component Width B: 655mm
    Outlet diameter: DN15
    Air intake diameter: DN15
    Component membrane area: 20
    Shell material: ABS/UPVC
    Hollow fiber membrane material: PVDF(Enhanced)
    Inner diameter of hollow fiber membrane: 0.05um
    Outer diameter of hollow fiber membrane: 1.0mm
    Outer diameter of hollow fiber membrane: 2.4mm


  • MBR-15-PVDF


    Item No.: MBR-15-PVDF
    Component Length A: 1550mm
    Component Width B: 655mm
    Outlet diameter: DN15
    Air intake diameter: DN15
    Component membrane area: 15
    Shell material: ABS/UPVC
    Hollow fiber membrane material: PVDF(Enhanced)
    Inner diameter of hollow fiber membrane: 0.05um
    Outer diameter of hollow fiber membrane: 1.0mm
    Outer diameter of hollow fiber membrane: 2.4mm


  • MBR-10-PVDF


    Item No.: MBR-10-PVDF
    Component Length A: 1050mm
    Component Width B: 655mm
    Outlet diameter: DN15
    Air intake diameter: DN15
    Component membrane area: 10
    Shell material: ABS/UPVC
    Hollow fiber membrane material: PVDF(Enhanced)
    Inner diameter of hollow fiber membrane: 0.05um
    Outer diameter of hollow fiber membrane: 1.0mm
    Outer diameter of hollow fiber membrane: 2.4mm







  • Permanent hydrophilic properties

    High-flux PVDF hollow-fiber membrane delivers high permeability.

  • High flux & effluent quality (SDI < 2)

    The membrane elements utilize PVDF resin, enabling long-term usage thanks to high chemical resistance and low chemical degradation.

  • Easy maintenance

    Use of PVDF resin, which has excellent chemical resistance, achieves a cleansing effect adequate for maintenance cleaning and recovery cleaning.

  • Water flux increases substantially

    Film wire using a unique hole - forming process.

    The porosity is over 98%.

    Under the same conditions, the water flux increases greatly.

  • High coating strength

    The membrane wire coating was prepared by polymer chemical dual modification and secondary extraction.

    High coating strength, not easy to peel off.

    Acid and alkali resistant frequent cleaning, long design service life.

  • Strong anti-pollution ability

    Film wire is not easy to stain and block.

    Service life extension.

  • Special Material Formula Design

    The unique outer dense layer structure makes the pollutants can only stay on the outer surface of the membrane, and it is not easy to enter the mesh hole of the membrane.

    Thin coating, so that when cleaning, dirt is easier to wash out, flux recovery performance is good.


Component Length 1050mm 1550mm 1850mm
Component Width 655mm 655mm 655mm
Outlet diameter DN15 DN15 DN15
Air intake diameter 10 15 20
Component membrane area ABS/UPVC ABS/UPVC ABS/UPVC
Shell material PVDF(enhanced) PVDF(enhanced) PVDF(enhanced)
Hollow fber membrane material 0.05um 0.05um 0.05um
Inner diameter of hollow fiber membrane 1.0mm 1.Omm 1.0mm
Outer diameter of hollow fber membrane 2.4mm 2.4mm 2.4mm
Service life 3-5years 3-5years 3-5years
Temperature tolerance 1-40℃ 1-40℃ 1-40℃
PH tolerance 2-13 2-13 2-13










Water flow 2.5-3.0t/d 3.5-5.0t/d 5.0-7.0t/d
Maximum transmembrane pressure difference -0.08MPa -0.08MPa -0.08MPa
Effluent cycle Out 8min,keep 2min Out 8min,keep 2min Out 8min,keep 2min
Maximum backwash pressure 0.1MPa 0.1MPa 0.1MPa
Chemical sterilization agents chloros chloros chloros
Chemical cleaning cycle 6-12 months 6-12 months 6-12 months

As professional Hollow Fiber MBR Membrane manufacturer and factory in China, We can provide customized services(OEM&ODM), especially for your model.


Type of sewage Design run membrane flux 1/㎡.h The maximum operating membrance flux L/㎡ is allowed when the water Fluctuates greatly.h Remarks
Secondary settling tank effluent 23-25 30 Standard effluent, pure membrane filtration
Domestic / Municipal Waste Water 19-22 25 Good biodegradability
Aquaculture wastewater 17-18 22 Good biochemistry
Industrial sewage 15-16 17-18 General biodegradability
Landfill Leachate 10-11 13-14 General biodegradability
Directions: L/㎡. h refers to the water output of a flat rice film for an hour in units such as:19L/㎡. h Refers to 19 litres of effluent from a flat rice membrane for an hour
For large-scale mbr film projects, especially for complex industrial wastewater, it is best to explore and verify the process and design parameters by trial or pilot tests

When you design aerobic tank, anaerobic tank, primary, secondary, tertiary sewage/water treatment process, the above parameter can be used. If you need more information and Technical support, Please contact our experts.


NIHAO Real application Cases

Quality Water Treatment Products

  • MBR applications in wastewater treatment plant

    Membrane biological reactor treatment is applicable to many sectors, including municipal, industrial and water reclamation. Municipal wastewater treatment is both the earliest and largest application of submerged membrane bioreactor, and it is predicted that this will continue to be its primary use. Due to its small footprint and potential for reuse of high-quality effluent, MBR bioreactor is capable of coping with population growth and limited space. For industrial applications where more stringent regulations are imposed, it provides an effluent that can be safely discharged into the environment. The main applications of membrane technology reported in industry are for treatments of heavily loaded wastewaters such are oily wastewaters or discharges from tanneries and textile industries .Promising applications also exist in treating landfill leachate, chlorinated solvents in manufacturing wastewater, and for groundwater remediation.

  • Applications in Municipal Wastewater Treatment

    MBR systems were initially used for municipal wastewater treatment, primarily in the area of water reuse and recycling. Compactness, production of reusable water, and trouble – free operation made the submerged bioreactor an ideal process for recycling municipal wastewater in water and space limited environments. By the mid-1990s, the development of less expensive submerged membranes made MBRs a real alternative for high flow, large scale municipal wastewater applications. Over 1,500 membrane bioreactor system are currently in operation around the world in Japan, Europe and North America

  • Applications in Industrial Wastewater Treatment

    High organic loadings and very specific and difficult to treat compounds are two major characteristics of industrial waste streams that render alternative treatment techniques such as the submerged MBR desirable. Since, traditionally wastewater with high COD.

  • Applications in Fields of Landfill Leachate and Sludge Digestion

    In addition to municipal and industrial wastewater treatment, mbr treatment plant have been utilized in a number of others areas. One such area is the treatment of landfill leachates. Landfill leachates usually contain high concentrations of organic and inorganic compounds. Conventionally, the treatment of leachates involves a physical, biological, or membrane filtration process. MBR systems have been successfully utilized with an additional treatment step for inorganics and heavy metal removal, such as reverse osmosis (RO).

  • Another application of the MBR membrane bioreactor is in the area of sludge treatment.

    Conventionally, sludge stabilization in wastewater treatment plants is achieved by a single pass, anaerobic digester. Since the HRT and the SRT are identical in these systems, the capacity is limited and long solid retention times are required for effective solids destruction.


Material of Cassete SS304 stainless steel
Tube diffuse UPVC tube with holes
Water tube material ABS/UPVC
Package with wooden box/carton


No Project Unit Test standard Test Value
1 2 3 Ave. Result
1 SIZE mm 1050*655±20 1043* 650 1048*660 1053*655 1048*655 Pass
2 Component membrane area 10±0.5 9.97 10.3 10.1 10.1 Pass
3 Inner /Extemal diameter of membrane fiber 1/2.1 1/2.1
4 Material PVDF (Enhance) PVDF (Enhance)
5 Nominal diameter um 0.1um 0.1um
6 water yield Less than/Equal to 3 3
7 Produced water turbidity NTU Less than/Equal to 0.5NTU 0.5NTU
8 Filter Methods Negative pressure suction filtration
9 Applicable temperature range 5-45℃ 5-45℃
10 Long-term tolerance pH range 2-10 2-10
Inspector: Huang jingdian Date: Apr.20th


During Transportation, the modules must be protected from moisture, exposure, heavy pressure, violent collisions and bumps, and prohibit inversion. Environmental temperature range shall be 0-40°C. Please read the related data carefully before selcting trans port vehicle and lifter.

There is a special protection solution inside the modules; this can protect the membrane from drying out and microorganisms growing (79% Water, 20% Glycerin, 0.5% Sodium dodecyl sulfate, 0.5% Isothiazolinone). The sealed package shall be without breakage during transportation.


  • The membrane modules must always be fully protected during storage. The new membrane modules shall be stored in a dry, clean, non corosive, non-polluted, far from sources of cold or heat. Environment temperature range shall be 0-40°C. During outdoor transportation, the modules must be placed in the specific area with supporting cover to avoid wind and direct sunlight.

  • The membrane modules have been coated with a protection solution (79% Water, 20% Glycerinum, 0.5% Sodium dodecyl sulfate, 0.5% Isothiazolinone) and sealed within a vacuum package. If they are stored within abore conditions, the maximum storage time can be 1 year. After 1 year, the protection solution on the surface must be renewed, the formula is the same as above.

  • Once the membrane is installed in the membrane tank, during a short-term system stop, the membrane module must be completely cleaned first before re-starting. In some cases, shall be cleaned by chemical, and feed protection solution (5mg/L NaClO) into the membrane tank for soaking membrane. If the concentration of NaClO in the membrane tank is less than 0.5mg/L, the operators must renew the protection solution of the membrane tank immediately.


  • Q.How to install after the equipment arriving destination?

    We will provide detailed illustrations to you. If necessary, we will send technicians to help you.

  • Q.How often should the membrane be washed?

    Usually chemical cleaning should be carried out every half a year.

  • Q.How to clean/wash the membrane sheet?

    You can clean the membrane cartridges in-situ: stop the blower and switch valves, pour the chemical for 10 minutes, keep intact for a few hours.

  • Q.How to change the membrane sheet?

    Due to unique design of the flat membrane module, flat membrane can be replaced one sheet for one time, without changing support.

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NIHAO MBR Membrane Knowledge Extension

Benefits in different industrial and municipal settings
Hollow Fiber MBR Membranes offer several benefits in different industrial and municipal settings. For example:
High-quality effluent: These membranes provide a high level of filtration and produce high-quality effluent that can meet stringent discharge standards.
Compact size: The compact size of Hollow Fiber MBR Membranes allows for a smaller footprint of the treatment system, which can be beneficial in applications where space is limited.
Low energy consumption: These membranes require low energy consumption, which can result in significant cost savings over the long term.
High durability: Hollow Fiber MBR Membranes are highly durable and can withstand harsh conditions, making them suitable for use in a wide range of industrial and municipal settings.
Reduced sludge production: The use of MBR technology can reduce sludge production, which can result in lower disposal costs and environmental impact.

PVDF Hollow Fiber MBR Membrane
PVDF (Polyvinylidene fluoride) Hollow Fiber MBR (Membrane Bioreactor) Membrane is a type of membrane used in wastewater treatment systems. It is a porous, tubular membrane made of a synthetic polymer material that is resistant to chemicals and high temperatures. The PVDF material used in these membranes offers excellent mechanical strength and durability, making them well-suited for applications in harsh environments.
The PVDF Hollow Fiber MBR Membrane is used in an MBR system, which combines biological treatment with membrane filtration. The membrane acts as a physical barrier to separate solids, bacteria, and other contaminants from the treated water. This process results in high-quality effluent that can meet strict discharge standards.

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