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MBR Membrane Bioreactor System
Description：
Upgrading existing inefficient wastewater treatment systems and utilizing treated water for reuse、Filtration of groundwater and river water、Replacement of sand filters or microfiltration before reverse osmosis (RO), extending the lifespan of RO by nearly three times、Suitable for small to medium-sized sewage treatment plants, pharmaceutical plants, schools, restaurants, supermarkets, resorts, amusement parks, and military camps、Urgent need for rapid and phased ultrafiltration requirements
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MBR is an advanced wastewater treatment technology that combines biological treatment and membrane separation techniques. Its principle involves using biological processes to decompose and remove organic matter from wastewater, while employing membrane separation technology to block suspended solids and microorganisms, achieving efficient solid-liquid separation.
Compared to traditional activated sludge processes, MBR systems have a smaller footprint and can replace conventional activated sludge treatment methods such as aeration tanks, final settling tanks, and subsequent treatment tanks. MBR systems offer excellent water quality, stable water quantity and quality, can simultaneously remove multiple pollutants, and can overcome the common problem of sludge swelling in traditional activated sludge methods.
Comparison between MBR and Conventional Methods
MBR mainly consists of two types of membranes: flat sheet membranes and hollow fiber membranes.
In terms of flat sheet membrane structure, the hydrophilic polytetrafluoroethylene (ePTFE) membranes produced by global clean water production have a stacked structure, with layers of interwoven fibers effectively blocking impurities and bacterial strains in water, achieving water quality standards for reclaimed water.The characteristics of these membranes are as follows:-
The membrane material is polytetrafluoroethylene, which has excellent chemical stability and anti-bacterial properties. Its high mechanical strength also enhances the durability of the membrane material, allowing for online backwashing.
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The membrane surface has poor adhesion, making it resistant to fouling.
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The three-dimensional stacked structure of the membrane has a porosity of over 90%, and after hydrophilic treatment, the water flux is high with low pressure loss.
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Compared to PVDF hollow fiber membranes, the polytetrafluoroethylene flat sheet membranes produced by EFM do not have the problem of filament breakage and can operate stably for long periods.
Hollow fiber membranes are fiber-like membranes with self-supporting properties.
They are a type of asymmetric membrane, where the dense layer can be located on the outer surface of the fibers (as in reverse osmosis membranes) or on the inner surface of the fibers (as in microfiltration membranes, nanofiltration membranes, and ultrafiltration membranes).
For gas separation membranes, the dense layer can be located on either the inner or outer surface.
During the separation process, the operating pressure generally ranges from 0.7 to 7 kPa. The raw material liquid undergoes filtration under the action of a static pressure difference, passing through a variety of filter materials such as folded filter cores, melt-blown filter cores, bag-type dust collectors, and microfiltration membranes.
Micro-porous membranes made of cellulose or polymer materials are utilized, taking advantage of their uniform pore size, to trap particles and bacteria in the water and prevent them from passing through the membrane. The separation efficiency of the membrane depends on its physical structure, pore shape, and size. Currently, there are over ten specifications for micro-porous membranes, with pore diameters ranging from 0.1 to 75 μm and membrane thicknesses of 120 to 150 μm.
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MBR Process Flow
MBR+RO wastewater treatment system model
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MBR FLATBED SPECIFICATION
MBR HLLOW FIBER MEMBRANE SPECIFICATION
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System IntroductionMBR is an advanced wastewater treatment technology that combines biological treatment and membrane separation techniques. Its principle involves using biological processes to decompose and remove organic matter from wastewater, while employing membrane separation technology to block suspended solids and microorganisms, achieving efficient solid-liquid separation.
Compared to traditional activated sludge processes, MBR systems have a smaller footprint and can replace conventional activated sludge treatment methods such as aeration tanks, final settling tanks, and subsequent treatment tanks. MBR systems offer excellent water quality, stable water quantity and quality, can simultaneously remove multiple pollutants, and can overcome the common problem of sludge swelling in traditional activated sludge methods.
Comparison between MBR and Conventional Methods
MBR mainly consists of two types of membranes: flat sheet membranes and hollow fiber membranes.
In terms of flat sheet membrane structure, the hydrophilic polytetrafluoroethylene (ePTFE) membranes produced by global clean water production have a stacked structure, with layers of interwoven fibers effectively blocking impurities and bacterial strains in water, achieving water quality standards for reclaimed water.The characteristics of these membranes are as follows:-
The membrane material is polytetrafluoroethylene, which has excellent chemical stability and anti-bacterial properties. Its high mechanical strength also enhances the durability of the membrane material, allowing for online backwashing.
-
The membrane surface has poor adhesion, making it resistant to fouling.
-
The three-dimensional stacked structure of the membrane has a porosity of over 90%, and after hydrophilic treatment, the water flux is high with low pressure loss.
-
Compared to PVDF hollow fiber membranes, the polytetrafluoroethylene flat sheet membranes produced by EFM do not have the problem of filament breakage and can operate stably for long periods.
Hollow fiber membranes are fiber-like membranes with self-supporting properties.
They are a type of asymmetric membrane, where the dense layer can be located on the outer surface of the fibers (as in reverse osmosis membranes) or on the inner surface of the fibers (as in microfiltration membranes, nanofiltration membranes, and ultrafiltration membranes).
For gas separation membranes, the dense layer can be located on either the inner or outer surface.
During the separation process, the operating pressure generally ranges from 0.7 to 7 kPa. The raw material liquid undergoes filtration under the action of a static pressure difference, passing through a variety of filter materials such as folded filter cores, melt-blown filter cores, bag-type dust collectors, and microfiltration membranes.
Micro-porous membranes made of cellulose or polymer materials are utilized, taking advantage of their uniform pore size, to trap particles and bacteria in the water and prevent them from passing through the membrane. The separation efficiency of the membrane depends on its physical structure, pore shape, and size. Currently, there are over ten specifications for micro-porous membranes, with pore diameters ranging from 0.1 to 75 μm and membrane thicknesses of 120 to 150 μm.
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Process Flow
MBR Process Flow
MBR+RO wastewater treatment system model
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Specification Sheet
MBR FLATBED SPECIFICATION
MBR HLLOW FIBER MEMBRANE SPECIFICATION