Water Purification Filtration/Sewage Treatment Equipment /MBR

Membrane-Bioreactor (MBR) is the application of membrane separation technology in the field of microbial treatment technology. Membrane modules are used to replace the secondary sedimentation tank at the end of traditional biological treatment technology. The activated sludge and macromolecular organic matter in the biochemical reaction tank are intercepted and left in the biochemical tank to continue biochemical treatment, thereby maintaining a high concentration of activated sludge in the bioreactor. It is convenient to continuously react and degrade difficult-to-degrade substances, so that the biochemical reaction of degrading sewage proceeds more quickly and thoroughly, and the effluent quality is better. Secondly, due to the high filtration accuracy of the membrane separation component in the membrane-bioreactor, the solid-liquid separation capacity of the system is improved, the floor space of the sewage treatment facility is reduced, and the amount of remaining sludge is reduced by maintaining a low sludge load, thereby obtaining High quality produced water

Water Purification Filtration Sewage Treatment Equipment with MBR Technology

Water Purification Filtration Sewage Treatment Equipment with MBR technology is an advanced wastewater treatment solution that combines biological treatment and membrane filtration to produce consistently high-quality treated water. Designed for municipal sewage, domestic wastewater, industrial effluent, commercial wastewater, and water reuse projects, an MBR system integrates microorganisms and membrane separation into one treatment process.

MBR stands for Membrane Bioreactor. Unlike conventional activated sludge systems that depend on a secondary settling tank for solid-liquid separation, an MBR system uses a microfiltration or ultrafiltration membrane as the physical separation barrier. The membrane retains activated sludge and suspended solids while treated water passes through as permeate.

This makes MBR particularly suitable for projects where high-quality effluent, compact equipment, reliable solids separation, and water reuse are important requirements.

How MBR Water Purification Filtration Works

A typical MBR sewage treatment process begins with preliminary treatment. Raw wastewater passes through coarse and fine screening equipment to remove large particles, plastics, fibers, hair, sand, and other materials that could interfere with downstream treatment or increase membrane fouling.

After pretreatment, wastewater enters an equalization or biological treatment section. Equalization helps stabilize variations in wastewater flow and pollutant concentration.

The biological reactor then provides the environment required for microorganisms to degrade biodegradable organic matter. Aeration equipment supplies oxygen and maintains suitable mixing conditions for aerobic biological treatment.

Depending on the required treatment objectives, the biological section can include anoxic and aerobic zones. This allows the process to be configured for organic matter removal and, where appropriate, nitrogen removal.

After biological treatment, the mixed liquor reaches the MBR membrane separation stage. The membrane module filters the mixed liquor and retains biomass and suspended solids while allowing treated water to pass through.

The result is a clarified permeate that can be discharged or sent to additional purification for reuse.

MBR Membrane Filtration

The membrane is the core filtration component of the MBR system. MBR membranes are commonly configured as hollow fiber or flat-sheet modules.

Hollow fiber membranes consist of numerous fine membrane fibers assembled into a module. They provide a large filtration area within a relatively compact volume.

Flat-sheet membranes use flat membrane panels arranged in modules or cassettes. They can provide a robust configuration for various municipal and industrial wastewater applications.

Membrane material may include PVDF and other polymeric materials selected according to chemical resistance, mechanical properties, cleaning requirements, and wastewater characteristics.

The appropriate membrane should be selected according to actual wastewater quality, required treatment capacity, design flux, cleaning method, and operating conditions.

Water Purification and Solid-Liquid Separation

One of the most important advantages of MBR technology is the combination of biological purification and physical membrane separation.

The biological reactor removes biodegradable organic pollutants, while the membrane provides a physical barrier for suspended solids and biomass.

This separation mechanism means that the system does not rely on conventional secondary sedimentation in the same way as a traditional activated sludge plant.

The membrane therefore helps maintain a high concentration of microorganisms in the bioreactor while producing a low-solids permeate.

However, membrane filtration primarily addresses suspended and particulate contaminants. Dissolved substances that are not removed biologically may require additional treatment. The EPA notes that MBR systems are effective for solids removal, while dissolved wastewater constituents may require additional treatment processes.

Main Components of MBR Sewage Treatment Equipment

A complete water purification filtration system can include:

Coarse Screening Equipment
Fine Screening Equipment
Equalization Tank
Anoxic Tank
Aeration Tank
MBR Membrane Tank
Hollow Fiber Membrane Modules
Flat-Sheet Membrane Modules
Air Blowers
Fine-Bubble Diffusers
Permeate Pumps
Sludge Return Pumps
Chemical Cleaning System
Disinfection Equipment
PLC Control Cabinet
Online Monitoring Instruments

The final equipment configuration depends on the wastewater source, treatment capacity, influent quality, required effluent standard, installation space, and final water reuse requirements.

Organic Matter Removal

Biological treatment is responsible for removing a significant portion of biodegradable organic matter.

Microorganisms consume organic compounds in the wastewater and convert them into biomass and other products through biological reactions. The MBR membrane then retains the biological solids inside the treatment system.

This combination allows the biological reactor and membrane separation stage to work continuously as an integrated treatment process.

For industrial wastewater with high COD, difficult-to-degrade compounds, toxic substances, oil, or other special pollutants, additional pretreatment may be necessary.

Possible pretreatment or polishing technologies include:

Dissolved Air Flotation
Coagulation and Flocculation
Advanced Oxidation
Activated Carbon
Chemical Treatment
Ultrafiltration
Reverse Osmosis
UV Disinfection

The final process should be determined through wastewater analysis and treatment objectives.

MBR Water Purification for Municipal Sewage

MBR technology is well suited to municipal sewage treatment because it can provide biological treatment and membrane separation in a compact configuration.

Applications include:

Municipal Sewage Treatment Plants
Residential Communities
Hotels and Resorts
Schools and Campuses
Hospitals
Commercial Buildings
Decentralized Sewage Treatment
Reclaimed Water Projects

For applications where treated water must meet a higher reuse quality, MBR permeate can be further processed using disinfection or advanced filtration.

Industrial Wastewater Treatment

MBR systems can also be customized for industrial wastewater.

Potential applications include:

Food Processing Wastewater
Beverage Wastewater
Brewery Wastewater
Pharmaceutical Wastewater
Textile Wastewater
Printing and Dyeing Wastewater
Chemical Wastewater
Electronics Manufacturing Wastewater
Automotive Wastewater
General Manufacturing Wastewater

Industrial wastewater can vary significantly in composition, so MBR equipment should not be selected based only on flow rate. COD, BOD, TSS, nitrogen, phosphorus, pH, temperature, salinity, oil, toxicity, and biodegradability should all be considered.

Compact MBR Filtration System

A major reason for selecting MBR technology is its compact process configuration.

Because membrane filtration performs the solid-liquid separation function, the system can reduce or eliminate the need for a conventional secondary clarification stage. This can help reduce the required footprint for suitable applications.

Modern MBR systems can also be designed as modular or containerized units. Containerized configurations can be useful for remote facilities, decentralized wastewater treatment, temporary projects, industrial sites, and projects where rapid installation is important.

Modular design also allows additional membrane capacity to be incorporated when treatment requirements increase.

Membrane Fouling Control

Membrane fouling is one of the main operating considerations for MBR systems.

Organic compounds, biological materials, suspended solids, and inorganic deposits can accumulate on membrane surfaces and reduce permeability.

A properly designed system can incorporate several fouling-control methods:

Fine Pretreatment

Fine screening removes fibers, plastics, hair, and other materials that can interfere with membrane operation.

Membrane Aeration

Air scouring helps create movement around submerged membrane surfaces and reduces the accumulation of solids.

Relaxation and Backwashing

Depending on membrane design, relaxation and backwashing can help restore membrane permeability.

Chemical Cleaning

Periodic chemical cleaning can remove accumulated organic or inorganic fouling that cannot be controlled through physical cleaning alone.

Operating conditions should be optimized to balance membrane performance, treatment capacity, energy consumption, and cleaning frequency.

Water Reuse Applications

MBR-treated water can provide a suitable feed stream for additional water purification.

Depending on the required final water quality, downstream treatment can include:

UV Disinfection
Chlorination
Ozone
Activated Carbon
Ultrafiltration
Reverse Osmosis
Advanced Oxidation

MBR is therefore useful not only for wastewater discharge but also as part of an integrated water recycling system. Commercial MBR systems are commonly positioned for municipal treatment, industrial wastewater treatment, effluent polishing, and water reuse.

For applications requiring low TDS, desalinated water, or very high-purity process water, an additional RO or other advanced purification stage may be necessary.

Automation and Control

The MBR water purification filtration equipment can be equipped with a PLC-based automatic control system.

The control cabinet can manage:

Feed Pumps
Permeate Pumps
Air Blowers
Membrane Filtration Cycles
Membrane Air Scouring
Backwashing
Chemical Cleaning
Sludge Recirculation
Tank Levels
Alarm Functions

Online sensors can be incorporated for monitoring flow, pressure, dissolved oxygen, pH, turbidity, conductivity, and other project-specific parameters.

Automation improves process consistency and helps operators monitor membrane and biological treatment conditions.

Custom MBR Water Purification Equipment

Each wastewater project requires a treatment configuration based on actual water quality.

Important information for system design includes:

Average Flow Rate
Peak Flow Rate
BOD
COD
TSS
Ammonia Nitrogen
Total Nitrogen
Total Phosphorus
pH
Temperature
Oil and Grease
Salinity or TDS
Required Effluent Quality
Final Reuse Requirements

Based on this information, the membrane area, biological reactor volume, aeration capacity, pump specifications, cleaning system, disinfection system, and downstream treatment can be selected appropriately.

Why Choose Us?

We provide integrated water purification, membrane filtration, and sewage treatment equipment for municipal, commercial, and industrial wastewater projects.

Our MBR solutions combine biological treatment, membrane filtration, aeration, pumps, membrane cleaning, automation, and optional disinfection or advanced purification into a complete treatment system.

We can support hollow fiber MBR membranes, flat-sheet membrane systems, membrane module customization, complete MBR equipment, replacement membrane modules, wastewater treatment plant upgrades, PLC control systems, and OEM/ODM requirements.

Our engineering approach focuses on matching the equipment to actual wastewater characteristics instead of using a one-size-fits-all configuration.

Whether you need a compact packaged MBR plant, industrial wastewater treatment system, municipal sewage treatment plant, water reuse system, or MBR retrofit solution, the equipment can be configured according to your capacity and final water quality requirements.

FAQs
1. What is MBR in water purification?

MBR stands for Membrane Bioreactor. It combines biological wastewater treatment with membrane filtration to provide biological degradation and solid-liquid separation in an integrated process.

2. What does an MBR membrane remove?

An MBR membrane primarily provides physical separation of suspended solids and biomass. Depending on the complete treatment process, the system can also achieve high-quality removal of microorganisms and other particulate contaminants.

3. Can MBR be used for sewage treatment?

Yes. MBR technology is widely used for municipal sewage, domestic wastewater, commercial wastewater, and industrial wastewater treatment.

4. What types of MBR membranes are available?

Common configurations include hollow fiber and flat-sheet membrane modules.

5. Is MBR better than conventional activated sludge?

MBR can provide higher-quality solid-liquid separation and a more compact configuration, but the best process depends on wastewater characteristics, capacity, energy requirements, land availability, and required effluent quality.

6. Does MBR remove dissolved salts?

Not normally. MBR is primarily a biological treatment and membrane separation process. If low-TDS water or desalinated water is required, RO or another desalination process may be added.

7. Does MBR require aeration?

Aerobic MBR systems generally require aeration for biological treatment. Air scouring can also be used to control fouling on submerged membrane surfaces.

8. How is membrane fouling controlled?

Pretreatment, appropriate membrane flux, aeration, relaxation, backwashing where applicable, and chemical cleaning can all contribute to fouling control.

9. Can MBR-treated water be reused?

Yes. MBR permeate can be used directly for suitable reuse applications or further treated with UV, RO, activated carbon, or other polishing technologies according to the required water quality.

10. Can MBR equipment be used for industrial wastewater?

Yes. MBR systems can be designed for food, beverage, pharmaceutical, textile, chemical, manufacturing, and other industrial wastewater applications.

11. Can the MBR system be customized?

Yes. Capacity, membrane type, membrane area, tank configuration, aeration, pumps, control system, disinfection, and downstream treatment can all be configured according to the project.

12. What information is needed for an MBR quotation?

Typical information includes wastewater source, daily and peak flow, BOD, COD, TSS, nitrogen, phosphorus, pH, temperature, salinity, required outlet quality, and final water reuse requirements.

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