Why Choose CHARM
Reliable MBR Solutions Backed by Expertise
With extensive experience in environmental engineering, CHARM Ltd. delivers dependable MBR sewage treatment solutions focused on performance, sustainability, and long-term reliability.
MBR Sewage Treatment Plant
Advanced Membrane Bioreactor (MBR) Solutions for Sustainable Wastewater Management
CHARM Ltd. is a leading manufacturer and supplier of MBR Sewage Treatment Plants in Bangladesh, providing advanced wastewater treatment solutions designed to protect the environment and public health through efficient and sustainable sewage management. With years of industry experience and a team of highly skilled professionals, we deliver reliable and high-performance MBR systems tailored to residential, commercial, institutional, and industrial applications. Our advanced treatment technologies ensure effective wastewater purification, regulatory compliance, and long-term environmental sustainability.
What is MBR Technology?
Advanced Membrane-Based Wastewater Treatment
A Membrane Bioreactor (MBR) is an advanced sewage treatment technology that combines biological wastewater treatment with membrane filtration processes to remove contaminants, suspended solids, and harmful microorganisms from sewage. Unlike conventional treatment systems, MBR technology uses semipermeable membranes with extremely fine pores to produce high-quality treated water suitable for safe discharge or reuse applications. The system provides efficient wastewater treatment with compact installation, improved treatment performance, and lower environmental impact.
Why MBR is Important
Smart & Sustainable Wastewater Treatment
Rapid population growth and urban development are increasing pressure on water resources and sanitation infrastructure. In many areas, untreated wastewater contaminates rivers, canals, and natural water bodies, creating serious environmental and public health challenges.
MBR technology helps solve these challenges by providing:
Advanced wastewater treatment performance
High-quality treated water output
Compact and space-saving installation
Reduced environmental pollution
Support for water reuse applications
Compliance with environmental standards
Applications of MBR
Designed for Multiple Project Types
Our Proposed Packaged MBR Technology
Hollow Fiber Membrane STERAPORE™
CHARM Ltd. provides advanced Packaged MBR (Membrane Bioreactor) solutions using Hollow Fiber Membrane STERAPORE™ technology from Mitsubishi Chemical, Japan.
STERAPORE™ is a globally recognized hollow fiber membrane technology designed for high-performance wastewater treatment applications, including sewage treatment, industrial wastewater treatment, and water purification. With more than 5,000 installed projects worldwide, the technology is known for its efficiency, durability, compact design, and reliable treatment performance.
What is STERAPORE™?
Advanced Membrane Filtration Technology
STERAPORE™ is a hollow fiber membrane filtration technology developed using Mitsubishi Chemical’s advanced synthetic fiber engineering.
The system uses high-performance UF/MF membrane filtration to remove suspended solids, contaminants, and microorganisms from wastewater, producing high-quality treated water suitable for safe discharge or reuse applications.
Its compact and energy-efficient design makes it ideal for modern wastewater treatment projects where space optimization, operational efficiency, and environmental sustainability are important.
Packaged MBR System
Complete Integrated Wastewater Treatment Solution
Our packaged MBR systems are complete all-in-one wastewater treatment solutions equipped with:
Membrane filtration tank
Suction pumps
Aeration blowers
Control panel systems
Biological treatment chambers
Water treatment materials and carriers
How Packaged STERAPORE™ MBR STP Works
Step 01
Influent & Fine Screening
Wastewater first enters the system through the influent line and passes through a fine screen.
The fine screen removes large particles, debris, and unwanted solids to protect downstream equipment and improve treatment efficiency.
Step 02
Equalization Tank
After screening, wastewater flows into the equalization tank where wastewater flow and concentration are balanced.
This chamber stabilizes incoming wastewater and ensures smooth and consistent treatment performance throughout the system.
Step 03
Anoxic Tank
The wastewater then enters the anoxic tank where biological denitrification processes occur.
In this chamber, microorganisms break down nitrogen compounds under low-oxygen conditions, helping reduce nutrient pollution from wastewater.
Step 04
Aerobic Tank with STERAPORE™ Membrane Module
Wastewater moves into the aerobic tank, which contains advanced STERAPORE™ Hollow Fiber Membrane Modules.
Inside this chamber:
Aerobic microorganisms decompose organic pollutants
Blowers supply oxygen to maintain biological activity
The membrane module filters suspended solids, bacteria, and contaminants from the treated water
This integrated biological and membrane treatment process produces highly purified treated water while maintaining compact system design.
Step 04
Aerobic Tank with STERAPORE™ Membrane Module
Wastewater moves into the aerobic tank, which contains advanced STERAPORE™ Hollow Fiber Membrane Modules.
Inside this chamber:
- Aerobic microorganisms decompose organic pollutants
- Blowers supply oxygen to maintain biological activity
- The membrane module filters suspended solids, bacteria, and contaminants from the treated water
This integrated biological and membrane treatment process produces highly purified treated water while maintaining compact system design.
Step 05
Sludge Separation & Management
Excess sludge generated during treatment is transferred into the sludge storage tank for safe handling and periodic removal.
Part of the sludge is recirculated back into the treatment system through the circulation pump to maintain efficient microorganism activity.
This process helps improve treatment performance while reducing sludge generation.
Step 06
Permeate Tank & Chemical Cleaning System
Filtered treated water, known as permeate, is collected in the permeate tank.
The permeate pump transfers treated water for discharge or reuse applications.
The system also includes a chemical dosing and membrane cleaning system that helps maintain membrane performance and long-term operational efficiency.
Step 07
Effluent Discharge or Reuse
The final treated water is discharged safely into the environment or reused for non-potable applications such as:
- Gardening & Irrigation
- Toilet Flushing
- Cooling Systems
- Industrial Utility Use
This helps reduce freshwater consumption and supports sustainable water resource management.
Why MBR Technology
Efficient, Reliable & Sustainable Performance
STERAPORE™ membrane technology offers significant advantages over conventional wastewater treatment systems.
Better effluent quality
Smaller installation footprint
Easy automation and operation
Reduced chemical consumption
Valuable resource recovery capability
Supports treated water reuse
Compliance with environmental regulations
Long-term membrane durability
Our Product
STERAPORE™ Hollow Fiber Membrane
Advanced Membrane Filtration Technology
STERAPORE™ is a high-performance hollow fiber membrane system designed for advanced wastewater treatment and water purification applications.
The membrane technology efficiently separates suspended solids, contaminants, bacteria, and microorganisms from wastewater, producing high-quality treated water suitable for safe discharge or reuse.
Key Features
Advanced hollow fiber membrane technology
High-quality treated water output
Compact and space-saving design
Low energy consumption
Reduced sludge generation
Long-term stable operation
Easy maintenance and cleaning
Supports water reuse applications
Water Reuse & Sustainability
Turning Wastewater into Reusable Resources
At CHARM Ltd., we believe wastewater should not simply be discarded—it should be treated responsibly and transformed into reusable value wherever possible.
Our MBR systems help reduce freshwater consumption by enabling treated water reuse for applications such as flushing, irrigation, gardening, and industrial reuse.
This reflects our philosophy of Change and Resource Management—creating sustainable systems that work with nature responsibly and efficiently.
Our Commitment
At Charm Ltd., we believe that engineering is not just about building systems—it’s about creating a better future.
Environmental Responsibility
We protect natural resources and reduce environmental impact.
Reliable Engineering
We deliver efficient, high-performance systems you can trust.
Client-Centric Support
We support our clients at every stage, from planning to maintenance.
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