Water Filter System Mbr Membrane Reverse Osmosis System

 Water Filter System with MBR Membrane and Reverse Osmosis System

The Water Filter System with MBR Membrane and Reverse Osmosis System is an advanced integrated wastewater treatment and water purification solution designed for applications requiring high-quality treated water, efficient solid-liquid separation, and deep removal of dissolved contaminants. By combining Membrane Bioreactor (MBR) technology with Reverse Osmosis (RO), the system creates multiple treatment barriers for municipal sewage, domestic wastewater, industrial wastewater, and water recycling applications.

MBR and RO perform different functions within the treatment process. The MBR section combines biological treatment with membrane filtration to remove biodegradable organic matter, activated sludge, suspended solids, and many microorganisms. The downstream RO section uses pressure-driven membrane separation to reduce dissolved salts, ions, and other dissolved contaminants. Research has demonstrated that MBR-RO systems can produce high-quality water suitable for a variety of recycling applications.

MBR Membrane Water Filtration

The MBR membrane is the core filtration component of the biological wastewater treatment stage.

In a conventional activated sludge process, a secondary clarifier is normally used to separate biological solids from treated water. In an MBR system, microfiltration or ultrafiltration membranes perform this solid-liquid separation function.

Wastewater first enters the biological reactor. Microorganisms consume biodegradable organic pollutants, while controlled aeration supplies oxygen for biological treatment. The mixed liquor then contacts the membrane surface.

Water passes through the membrane as permeate, while activated sludge and suspended solids remain in the bioreactor.

This configuration provides excellent solids retention and allows the biological treatment process to operate with a relatively high concentration of active microorganisms.

Reverse Osmosis Water Filtration

The RO system provides the advanced purification stage following MBR treatment.

Reverse osmosis uses high pressure to force water through a semipermeable membrane. Dissolved salts, ions, and many other dissolved substances are rejected to a significant degree while purified water passes through as permeate.

RO is particularly valuable when the final application requires lower conductivity, lower TDS, reduced dissolved inorganic contaminants, or additional removal of dissolved organic and trace contaminants.

For this reason, MBR followed by RO is frequently considered for advanced wastewater reclamation and industrial water reuse. Studies of MBR-RO systems have reported high-quality recycled water and effective removal of various organic, inorganic, and microbial contaminants, depending on the system design and operating conditions.

How the MBR RO Water Filter System Works

A typical integrated process can be configured as:

Pretreatment → Equalization → Biological Treatment → MBR Membrane → Cartridge Filtration → High-Pressure Pump → RO System → Disinfection → Reuse Water

The exact process flow should be customized according to wastewater quality and the final water-use requirements.

Pretreatment

Screens and other pretreatment equipment remove large solids, plastics, fibers, hair, sand, and other materials that could damage pumps or membranes.

Additional processes such as oil separation, coagulation, or chemical treatment may be required for specific industrial wastewater.

Biological Treatment

The biological reactor provides biodegradation of organic pollutants. Depending on the project, aerobic and anoxic zones can be incorporated for carbon removal, nitrification, denitrification, and nutrient control.

MBR Membrane Filtration

The MBR membrane separates activated sludge from treated water. This provides a strong physical barrier against suspended solids and helps produce low-turbidity permeate.

RO Pretreatment

Depending on the MBR effluent quality, cartridge filters or other polishing processes may be installed before the RO unit.

Reverse Osmosis

The RO membrane performs deep filtration of dissolved contaminants and reduces TDS and conductivity according to the selected membrane and operating conditions.

Final Water Treatment

Depending on the intended reuse application, UV, chlorination, remineralization, pH adjustment, or other post-treatment can be incorporated.

High-Efficiency MBR Membrane Filtration

The MBR stage provides several important benefits before RO treatment.

First, the membrane retains activated sludge and suspended solids. Second, biological treatment reduces biodegradable organic loading. Third, the low-solids MBR permeate can provide a more suitable feedwater for downstream advanced treatment.

However, MBR permeate is not automatically suitable for every reuse application. Dissolved salts, nutrients, soluble organics, trace contaminants, and final public-health requirements must be evaluated according to the intended use. Additional treatment such as RO may be necessary when the water quality target is more demanding.

Reverse Osmosis for Advanced Water Purification

RO is especially useful when the wastewater treatment project requires removal of dissolved substances that cannot be adequately removed through biological treatment and MBR filtration alone.

Typical RO treatment targets can include:

Total Dissolved Solids
Dissolved Salts
Conductivity
Chloride
Sulfate
Certain Heavy Metals
Dissolved Organic Matter
Selected Micropollutants
Other Dissolved Contaminants

The actual rejection performance depends on feedwater quality, membrane type, pressure, temperature, recovery rate, pH, and other operating parameters.

A pilot test or detailed water analysis is recommended for complex industrial wastewater before final RO equipment selection.

MBR + RO for Water Reuse

One of the main applications of an integrated MBR RO water filter system is wastewater recycling.

Treated wastewater can be converted into reusable water for selected industrial processes, cooling systems, equipment washing, irrigation, or other non-potable applications when the treated water meets the applicable quality requirements.

For example, an industrial MBR+RO project at a manufacturing facility was used to recycle treated wastewater for manufacturing processes and reported a substantial reduction in fresh-water consumption.

Pilot-scale research has also shown that MBR followed by RO can achieve high removal of selected inorganic contaminants and support reuse applications such as cooling and irrigation, depending on the treatment conditions.

Hollow Fiber MBR Membrane

Hollow fiber MBR membranes are commonly used in submerged membrane bioreactor systems.

The hollow fiber structure provides a large membrane area within a compact module. During operation, wastewater surrounds the membrane fibers while treated water passes through the membrane wall and enters the hollow fiber lumen.

Air scouring around the membrane module helps maintain membrane surface conditions and can reduce the accumulation of solids.

Important operating parameters include:

Membrane Flux
Transmembrane Pressure
Mixed Liquor Suspended Solids
Dissolved Oxygen
Sludge Retention Time
Hydraulic Retention Time
Aeration Rate
Membrane Area
Cleaning Frequency

The appropriate membrane module should be selected according to wastewater characteristics and required treatment capacity.

RO Membrane System Components

A typical reverse osmosis water filter system may include:

Feed Pump
Multimedia Filter
Activated Carbon Filter
Cartridge Filter
High-Pressure Pump
RO Membrane Housing
RO Membrane Elements
Pressure Gauges
Flow Meters
Conductivity Meter
Control Cabinet
Chemical Dosing System
CIP Cleaning System
Permeate Tank
Concentrate Discharge System

Not every project requires all components. The pretreatment configuration should be determined according to the actual MBR permeate quality and RO feedwater characteristics.

Membrane Fouling Control

Membrane fouling is an important consideration for both MBR and RO systems.

In MBR systems, fouling can result from suspended solids, colloids, organic matter, extracellular polymeric substances, and microbial products.

In RO systems, common fouling mechanisms include particulate fouling, organic fouling, biofouling, and mineral scaling.

An MBR-RO system therefore requires coordinated pretreatment and membrane management. Research on MBR-RO systems has shown that organic matter and inorganic salts in MBR effluent can contribute to downstream RO fouling, highlighting the importance of proper pretreatment and operating control.

Recommended maintenance includes:

Regular Pretreatment Inspection
MBR TMP Monitoring
RO Pressure Monitoring
Permeate Flow Monitoring
Conductivity Monitoring
Membrane Cleaning
Cartridge Filter Replacement
Sludge Management
Chemical Dosing Control
Pump Inspection
Instrument Calibration
Applications

The Water Filter System with MBR Membrane and Reverse Osmosis System can be designed for:

Municipal Wastewater Reuse
Domestic Sewage Treatment
Industrial Wastewater Treatment
Factory Wastewater Recycling
Food Processing Wastewater
Beverage Industry Wastewater
Brewery Wastewater
Pharmaceutical Wastewater
Textile Wastewater
Printing and Dyeing Wastewater
Chemical Industry Wastewater
Electronics Industry Wastewater
Manufacturing Wastewater
Industrial Park Wastewater
Cooling Water Recycling
Process Water Recycling
Equipment Washing Water
Irrigation Water Treatment
Non-Potable Water Reuse

The final treatment configuration should always be selected according to the actual water quality target, local regulations, and intended end use.

Advantages of MBR RO Water Treatment
Integrated Treatment

MBR provides biological treatment and solid-liquid separation, while RO provides advanced dissolved contaminant removal.

High-Quality Filtration

The MBR membrane produces low-solids permeate suitable for downstream advanced treatment.

Advanced Purification

RO provides an additional membrane barrier for dissolved salts, TDS, conductivity, and many other dissolved substances.

Water Recycling

The system can help convert suitable wastewater into reusable process water, reducing freshwater demand.

Compact Configuration

MBR integrates biological treatment and membrane separation, while the RO skid can be configured as a modular downstream purification unit.

Flexible Capacity

The system can be designed for different flow rates and water quality targets, from small packaged wastewater systems to larger industrial recycling projects.

Customized Water Filter System

Every wastewater source has different characteristics. We can customize the MBR and RO water filter system according to:

Wastewater Type
Daily Treatment Capacity
Peak Flow
COD
BOD
TSS
TDS
Conductivity
pH
Temperature
Required Effluent Quality
Final Water Application
Installation Space
Automatic Control Requirements

Available customization can include MBR membrane area, membrane module configuration, RO capacity, number of RO stages, pumps, pretreatment equipment, control cabinets, tanks, piping, chemical dosing, and cleaning systems.

Why Choose Us?
Complete MBR + RO Solutions

We provide integrated solutions covering biological treatment, MBR membrane filtration, RO purification, disinfection, and water reuse.

Application-Based Equipment Selection

We select membrane and treatment equipment according to actual wastewater characteristics instead of relying only on nominal capacity.

Customized Manufacturing

MBR membrane modules and RO water treatment systems can be customized for new plants, wastewater treatment upgrades, and replacement projects.

OEM and B2B Support

We support wastewater treatment contractors, engineering companies, distributors, manufacturers, and international OEM customers.

Complete Water Recycling Systems

From pretreatment through MBR, RO, disinfection, storage, and reuse, we can provide coordinated equipment solutions for industrial and municipal projects.

FAQ
1. What is a Water Filter System with MBR Membrane and RO?

It is an integrated wastewater treatment system that combines biological treatment and membrane filtration through MBR with advanced purification through reverse osmosis.

2. What is the function of the MBR membrane?

The MBR membrane separates activated sludge and suspended solids from treated water while allowing water to pass through as permeate.

3. What is the function of RO?

RO provides advanced separation of dissolved salts, TDS, ions, and many other dissolved contaminants.

4. Can MBR replace reverse osmosis?

No. MBR and RO have different treatment functions. MBR focuses on biological treatment and solid-liquid separation, while RO provides deeper dissolved-contaminant removal.

5. Why install RO after MBR?

RO can further purify MBR permeate when the final application requires lower TDS, lower conductivity, reduced dissolved salts, or stricter water quality.

6. Can MBR RO treat industrial wastewater?

Yes. MBR-RO systems can be designed for many industrial wastewater applications, including manufacturing, food, pharmaceutical, textile, chemical, and electronics wastewater.

7. Can the treated water be reused?

Yes. Depending on the treatment performance and applicable requirements, MBR-RO treated water can be used for selected industrial and non-potable water reuse applications.

8. Does MBR remove TDS?

MBR is not primarily designed for dissolved salt removal. RO is normally used when significant TDS or dissolved-salt reduction is required.

9. What causes RO membrane fouling?

RO fouling may be caused by suspended particles, organic substances, microorganisms, and mineral scaling. Proper pretreatment and operating control are important.

10. How is MBR membrane fouling controlled?

Common measures include pretreatment, membrane aeration, optimized flux, relaxation, backwashing, chemical cleaning, and appropriate sludge management.

11. Can the MBR membrane and RO system be customized?

Yes. Membrane area, module dimensions, RO capacity, membrane quantity, pumps, pretreatment, controls, tanks, and other components can be customized.

12. What information is needed for an MBR RO quotation?

Provide the wastewater type, daily flow, peak flow, COD, BOD, TSS, TDS, conductivity, pH, temperature, required treated-water quality, intended reuse application, and available installation space.