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Bubble Diffuser in Water Treatment

SPECIFICATION
Bubble Diffuser in Water Treatment
SHAPE

DISC & Tube TYPE

DIA SIZE

80mm to 150mm

MOC OF MEMBRANE

EPDM / SILICONE

MAX. PRESSURE ALLOWED

1 kg/cm2 - 1.5kg/cm2

AIR FLOW RANGE

1-10 m3/hr

MAX. OPERATING TEMP.

60° C

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Types Of Bubble Diffusers

EPDM Disc Diffuser Exporter in India
Silicon Fine Bubble Tube Diffuser
80mm Coarse Bubble Diffuser Manufacturers
overview

Bubble Diffuser in Water Treatment: Complete Guide for STPs and Wastewater Management

When it comes to treating wastewater efficiently, bubble diffuser in water treatment plays a vital role. Whether it’s a sewage treatment plant (STP), industrial effluent, or municipal wastewater, aeration is a must for effective biological treatment. That’s where bubble diffusers come in.

In this guide by Vasu Pharmatech, we will explain what a bubble diffuser is, how it works, the types available, benefits, and which one you should choose. We will also cover the technical specifications of our top-rated diffusers including fine bubble tube diffusers, coarse bubble diffusers, and fine bubble disc diffusers.

Coarse Bubble Diffusers

Our Range of Bubble Diffusers

80mm EPDM Coarse Bubble Diffuser

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Key Specifications

Coarse Bubble Diffusers by Vasu Pharmatech are dependable aeration solutions for wastewater treatment systems. Also known as Coarse Bubble Diffusers Wastewater, Coarse Bubble Disc Diffuser, and supplied by trusted Coarse Bubble Diffuser Manufacturers, these diffusers are designed to deliver strong mixing and consistent oxygen supply in biological treatment processes.

  • Bubble Size: Coarse bubble
  • Air Flow Rate: 5 m³/hr
  • Diffuser Type: Disc
  • Size: 80 mm
  • Membrane Material: EPDM
  • Pipe Connection: 3/4 inch BSP
  • Max Operating Temperature: 60°C
  • Brand: Vasu Pharmatech

80mm EPDM Coarse Bubble Diffusers are manufactured with a durable plastic base and flexible EPDM membrane for long service life. The large bubble formation ensures high mixing efficiency, making these diffusers suitable for aeration tanks, equalization tanks, and high-solid wastewater treatment applications. Designed for low maintenance and stable performance, they support effective oxygen transfer in demanding operating conditions.

 
 

150mm Silicon Coarse Bubble Diffuser

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Key Specifications

Coarse Bubble Diffusers by Vasu Pharmatech are designed for efficient aeration in wastewater treatment systems. This Coarse Bubble Disc Diffuser produces strong and uniform air bubbles for effective mixing and oxygen transfer in aeration tanks and industrial treatment processes.

As one of the reliable Coarse Bubble Diffuser Manufacturers, Vasu Pharmatech offers durable and high-performance diffusers for long-term use. These Coarse Bubble Diffusers for Wastewater applications are ideal for STP, ETP, and industrial aeration systems where robust airflow and consistent performance are required.

  • Disc Size: 150 mm
  • Neck Size: 1 BSP
  • Bubble Size: Coarse bubble
  • Air Flow Rate: 4 – 10 m³/hr
  • Membrane Material: Silicone
  • Pipe Connection: 3/4 inch BSP
  • Diffuser Type: Coarse Bubble Diffuser
  • Body Material: ABS
  • Max Operating Temperature: 60°C
  • Color: Blue & Black
  • Brand: Vasu Pharmatech

    Riding on vast industry expertise, Vasu Pharmatech offers Round Air Diffusers that ensure reliable aeration performance with low maintenance and long service life.

150mm EPDM Coarse Bubble Diffuser

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Key Specifications

Coarse Bubble Diffusers by Vasu Pharmatech are reliable aeration components used in wastewater treatment systems. Also known as Coarse Bubble Diffusers Wastewater, Coarse Bubble Disc Diffuser, and supplied by leading Coarse Bubble Diffuser Manufacturers, these diffusers are designed for effective mixing and oxygen supply in biological treatment processes.

  • Bubble Size: Fine bubble
  • Air Flow Rate: 5 m³/hr (Air Flow Range: 4–10 m³/hr)
  • Diffuser Type: Disc
  • Size: 150 mm
  • Membrane Material: EPDM
  • Pipe Connection: 3/4 inch BSP
  • Max Operating Temperature: 60°C
  • Brand: Vasu Pharmatech

In the wastewater treatment process, aeration is introduced using blowers and diffusers. These Coarse Bubble Diffusers remain submerged in wastewater, creating an aerobic environment that supports microbial degradation of organic matter.

80mm Silicone Fine Bubble Disc Diffuser

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Fine Bubble Disc Diffusers by Vasu Pharmatech are efficient aeration devices used in wastewater treatment plants. Also known as Disc Type Fine Bubble Diffuser, Fine Bubble Air Disc Diffuser, and supplied by reliable Fine Bubble Disc Diffuser Manufacturers and Fine Bubble Disc Diffuser Suppliers, these diffusers are designed to deliver high oxygen transfer with low energy consumption.

  • Bubble Size: Fine Bubble
  • Air Flow Rate: 3 m³/hr
  • Diffuser Type: Disc
  • Size: 80 mm
  • Membrane Material: Silicone
  • Pipe Connection: 3/4 inch BSP
  • Max Operating Temperature: 60°C
  • Brand: Vasu Pharmatech

Fine Bubble Disc Diffusers feature a strong PP base with a high-quality membrane for durable performance. The fine bubble design ensures high oxygen transfer with low power consumption, while the check valve prevents backflow during operation. Ideal for aeration tanks, STP, and ETP applications.

150mm EPDM Fine Bubble Disc Diffuser

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Key Specifications

150mm EPDM Fine Bubble Disc Diffusers by Vasu Pharmatech are designed for efficient and reliable aeration in wastewater treatment plants. These Fine Bubble Disc Diffusers deliver high oxygen transfer efficiency with uniform bubble distribution, making them suitable for STP, ETP, and industrial aeration tanks.

  • Bubble Size: Fine Bubble
  • Air Flow Rate: 5 m³/hr
  • Diffuser Type: Disc
  • Size: 150 mm
  • Membrane Material: EPDM
  • Pipe Connection: 3/4 inch BSP
  • Max Operating Temperature: 60°C
  • Brand: Vasu Pharmatech

Manufactured with a durable PP base and EPDM membrane, these diffusers offer long life and stable performance. The external check valve prevents backflow during ON/OFF operations, while 0.5 mm perforation ensures uniform fine bubble distribution. Available in 9″ and 12″ sizes with an airflow range of 1–10 m³/hr, they are ideal for biological wastewater treatment.

Fixed Clarifier Fine Bubble Diffuser

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Key Specifications

Fine Bubble Disc Diffusers by Vasu Pharmatech are designed for high-efficiency aeration in wastewater treatment systems. This Disc Type Fine Bubble Diffuser delivers uniform and ultra-fine air bubbles to improve oxygen transfer and ensure better mixing in aeration tanks and clarifiers.

As one of the trusted Fine Bubble Disc Diffuser Manufacturers, Vasu Pharmatech offers durable and reliable diffusers that help reduce energy consumption and enhance biological treatment performance. These Fine Bubble Air Disc Diffusers are ideal for STP, aeration tanks, and MBBR systems where consistent and efficient aeration is required.

  • Disc Size: 9 inch – 12 inch
  • Bubble Size: Fine bubble
  • Neck Size: 3/4 BSP Male Thread
  • Air Flow Rate: 1 – 5 m³/hr
  • Membrane Material: EPDM & Silicone
  • Diffuser Type: Disc
  • Size: 9″ and 12″
  • Application: Aeration Tank, STP
  • Max Pressure Allowed: 1.5 kg/cm²
  • Brand: Vasu Pharmatech

    The precision-perforated membrane ensures high oxygen transfer efficiency with uniform bubble distribution. The diffuser design also supports long-term stable operation with low maintenance requirements.

Fine Bubble Tubular Diffuser

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Fine Bubble Tubular Diffuser by Vasu Pharmatech is an efficient aeration solution designed for wastewater treatment applications. Also known as Fine Bubble Tube Diffuser, and supplied by trusted Fine Bubble Tube Diffuser Manufacturers and Fine Bubble Diffuser Suppliers, this diffuser is engineered to deliver uniform fine bubbles with reliable oxygen transfer performance.

  • Bubble Size: Fine bubble
  • Air Flow Rate: 2 – 7.5 m³/hr
  • Diffuser Type: Tube
  • Size: 63 mm & 90 mm
  • Membrane Material: EPDM & Silicone
  • Body Material: PP
  • Pipe Connection: 3/4 inch BSP
  • Application: STP, ETP, Aeration Tank
  • Brand: Vasu Pharmatech

Fine Bubble Tubular Diffusers are designed to handle high volumetric airflow while producing consistent fine bubbles for efficient oxygen transfer. The perforated membrane design improves aeration efficiency and helps prevent backflow, ensuring stable performance and long service life in continuous wastewater treatment operations.

80mm EPDM Fine Bubble Tubular Diffuser

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Key Specifications

Fine Bubble Tubular Diffusers by Vasu Pharmatech are high-performance aeration devices used in wastewater treatment systems. Also known as Fine Bubble Tube Diffuser, these diffusers are designed to deliver uniform fine bubbles for maximum oxygen transfer efficiency in STP, ETP, and aeration tanks.

  • Bubble Size: Fine bubble
  • Air Flow Rate: 3 m³/hr
  • Diffuser Type: Disc
  • Size: 80 mm
  • Membrane Material: EPDM
  • Pipe Connection: 3/4 inch BSP
  • Max Operating Temperature: 60°C
  • Brand: Vasu Pharmatech

Fine Bubble Tubular Diffusers are engineered to handle high-volume air discharge with excellent efficiency. Manufactured using high-quality EPDM or Silicone membranes with precision perforation, they produce fine bubbles that maximize oxygen transfer. The design also helps prevent backflow, ensuring reliable, long-term performance in wastewater treatment applications.

Specifications (Models Available):

  • VPFBD 600: 63 × 620 mm | Air Flow: 2 – 7.5 m³/hr
  • VPFBD 1000: 63 × 1020 mm | Air Flow: 2 – 10 m³/hr
  • VPFBD 1090: 90 × 1020 mm | Air Flow: 3 – 15 m³/hr

63 x 1000 mm EPDM Fine Bubble Tubular Diffuser

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63 × 1000 mm EPDM Fine Bubble Tubular Diffuser by Vasu Pharmatech is designed for efficient aeration in wastewater treatment applications. This Fine Bubble Tubular Diffuser handles high volumetric air discharge while delivering uniform fine bubbles for improved oxygen transfer.

  • Bubble Size: Fine bubble
  • Air Flow Rate: 3 m³/hr (Air Flow Range: 2–10 m³/hr)
  • Diffuser Type: Tube
  • Size: 63 mm
  • Overall Dimensions: 63 × 1000 mm
  • Membrane Material: EPDM
  • Pipe Connection: 3/4 inch BSP
  • Max Pressure Allowed: 1.5 kg/cm²
  • Model Number: VFPBD 1000
  • Brand: Vasu Pharmatech

The precision-perforated EPDM membrane ensures high oxygen transfer efficiency and uniform bubble distribution. The design also helps prevent backflow, ensuring stable and long-term performance in STP, ETP, and aeration tank systems.

90 x 1000 mm EPDM Fine Bubble Tubular Diffuser

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Fine Bubble Tubular Diffuser by Vasu Pharmatech is designed for efficient aeration in wastewater treatment systems. The VPFBD 1090 Silicone Fine Bubble Tubular Diffuser handles high volumetric air discharge while delivering uniform fine bubbles for improved oxygen transfer efficiency.

  • Bubble Size: Fine bubble
  • Air Flow Rate: 3 m³/hr (Air Flow Range: 3–15 m³/hr)
  • Diffuser Type: Tube
  • Size: 63 mm
  • Overall Dimensions: 90 × 1000 mm
  • Membrane Material: EPDM / Silicone
  • Pipe Connection: 3/4 inch BSP
  • Max Pressure Allowed: 1.5 kg/cm²
  • Model Number: VFPBD 1000
  • Brand: Vasu Pharmatech

These Fine Bubble Tubular Diffusers use precision-perforated membranes to ensure high oxygen transfer efficiency and uniform bubble distribution. The design also helps prevent backflow, ensuring stable, long-term performance in STP, ETP, and aeration tank applications.

63 x 1000mm Silicone Fine Bubble Tubular Diffuser

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Key Specifications

Silicone Fine Bubble Tubular Diffuser by Vasu Pharmatech is designed for efficient and consistent aeration in wastewater treatment systems. This Fine Bubble Tubular Diffuser handles high volumetric air discharge while producing uniform fine bubbles for improved oxygen transfer efficiency.

  • Bubble Size: Fine bubble
  • Air Flow Rate: 3 m³/hr (Air Flow Range: 2–10 m³/hr)
  • Diffuser Type: Tube
  • Size: 63 mm
  • Overall Dimensions: 63 × 1000 mm
  • Membrane Material: Silicone
  • Pipe Connection: 3/4 inch BSP
  • Max Pressure Allowed: 1.5 kg/cm²
  • Model Number: VFPBD 1000
  • Brand: Vasu Pharmatech

The precision-perforated silicone membrane ensures high oxygen transfer efficiency and uniform bubble distribution. The diffuser design also helps prevent backflow, ensuring reliable and long-term performance in STP, ETP, and aeration tank applications.

63 x 1020mm Silicone Fine Bubble Tubular Diffuser

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Key Specifications

Silicone Fine Bubble Tubular Diffuser by Vasu Pharmatech is designed for efficient aeration in wastewater treatment systems. This Fine Bubble Tubular Diffuser handles high volumetric air discharge while producing uniform fine bubbles for improved oxygen transfer efficiency.

  • Bubble Size: Fine bubble
  • Air Flow Rate: 3 m³/hr (Air Flow Range: 2–7.5 m³/hr)
  • Diffuser Type: Tube
  • Size: 63 mm
  • Overall Dimensions: 63 × 1020 mm
  • Membrane Material: Silicone
  • Pipe Connection: 3/4 inch BSP
  • Max Pressure Allowed: 1.5 kg/cm²
  • Model Number: VFPBD 1000
  • Brand: Vasu Pharmatech

The precision-perforated silicone membrane ensures efficient oxygen transfer and uniform bubble distribution. The design also helps prevent backflow, ensuring reliable and long-term performance in STP, ETP, and aeration tank applications.

90 x1000mm Silicone Fine Bubble Tubular Diffuser

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Key Specifications

Silicone Fine Bubble Tubular Diffuser by Vasu Pharmatech is designed for efficient aeration in wastewater treatment systems. This Fine Bubble Tubular Diffuser is suitable for applications where reliable oxygen transfer and uniform air distribution are required.

  • Bubble Size: Fine bubble
  • Air Flow Rate: 3 m³/hr (Air Flow Range: 2–7.5 m³/hr)
  • Diffuser Type: Tube
  • Size: 63 mm
  • Overall Dimensions: 90 × 1000 mm
  • Membrane Material: Silicone
  • Pipe Connection: 3/4 inch BSP
  • Max Pressure Allowed: 1.5 kg/cm²
  • Model Number: VFPBD 1000
  • Brand: Vasu Pharmatech

The precision-perforated silicone membrane ensures efficient oxygen transfer and uniform fine bubble formation. The diffuser design helps prevent backflow during operation, ensuring stable and long-term performance in STP, ETP, and aeration tank applications.

90 x1020mm Silicone Fine Bubble Tubular Diffuser

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Key Specifications

Fine Bubble Diffuser by Vasu Pharmatech is designed for efficient aeration in wastewater treatment systems. This Fine Bubble Tubular Diffuser can handle high volumetric air discharge while producing uniform fine bubbles for effective oxygen transfer. It is widely used in STP, ETP, and aeration tank applications for reliable and long-term performance.

  • Bubble Size: Fine bubble
  • Air Flow Rate: 3 m³/hr (Air Flow Range: 3–15 m³/hr)
  • Diffuser Type: Tube
  • Size: 63 mm
  • Overall Dimensions: 90 × 1020 mm
  • Membrane Material: Silicone
  • Pipe Connection: 3/4 inch BSP
  • Max Pressure Allowed: 1.5 kg/cm²
  • Model Number: VFPBD 1000
  • Brand: Vasu Pharmatech

    The precision-perforated silicone membrane ensures high oxygen transfer efficiency with uniform bubble distribution. The diffuser design also helps prevent backflow, ensuring stable and long-term operation in wastewater treatment systems.

Fine Bubble Tube Diffuser

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Key Specifications

Fine Bubble Diffuser by Vasu Pharmatech is designed for efficient aeration with uniform fine bubble distribution and high oxygen transfer. This Fine Bubble Tube Diffuser uses EPDM/Silicone perforated membranes to handle high airflow, reduce energy consumption, and prevent backflow.

As a trusted Fine Bubble Tube Diffuser Manufacturer, Vasu Pharmatech provides durable and reliable diffusers for STP, ETP, fish farming, and aeration tank applications. Customers seeking the best Fine Bubble Diffuser Price and dependable Fine Bubble Diffuser Suppliers can rely on Vasu Pharmatech for quality performance.

  • Length: 1000 mm
  • Membrane Material: EPDM & Silicone
  • Air Flow Rate: 2 – 10 m³/hr
  • Bubble Size: Fine bubble
  • Pipe Connection: 3/4 inch BSP
  • Body Material: PP
  • Shape: Tube
  • Application: STP, ETP, Fish Farming, Aeration Tank
  • Country of Origin: India
  • Brand: Vasu Pharmatech

    The precision-perforated membrane ensures high oxygen transfer efficiency with uniform bubble distribution. The diffuser design also helps prevent backflow, providing stable and long-term operation in wastewater treatment and aeration systems.

Vasu Pharmatech Membrane Diffuser

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Membrane Diffuser by Vasu Pharmatech is a high-performance fine bubble aeration diffuser designed for efficient oxygen transfer in wastewater treatment systems. It produces uniform fine bubbles that increase dissolved oxygen levels, improve biological degradation, and reduce overall energy consumption.

This diffuser is ideal for use in STP, ETP, aeration tanks, and industrial biological reactors, ensuring reliable operation and long service life with stable performance.

  • Membrane Material: EPDM & Silicone
  • Diffuser Type: Disc
  • Bubble Size: Fine bubble
  • Air Flow Rate: 2 – 7.5 m³/hr
  • Size: 63 mm
  • Pipe Connection: 3/4 inch BSP
  • Body Material: PP
  • Application: ETP, Aeration Tank, STP
  • Max Pressure Allowed: 1.5 kg/cm²
  • Brand: Vasu Pharmatech

    The precision-perforated membrane ensures uniform bubble distribution with high oxygen transfer efficiency, making it suitable for continuous and long-term aeration applications.

Air Diffuser for STP

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Key Specifications

Fine Bubble Diffuser by Vasu Pharmatech is a high-performance aeration solution designed for efficient oxygen transfer in wastewater treatment systems. This Fine Bubble Tube Diffuser produces uniform fine bubbles that increase dissolved oxygen levels, improve biological degradation, and reduce energy consumption.

As one of the trusted Fine Bubble Tube Diffuser Manufacturers, Vasu Pharmatech provides durable and reliable diffusers for STP, ETP, fish farming, and aeration tank applications. Customers looking for competitive Fine Bubble Diffuser Price and dependable Fine Bubble Diffuser Suppliers can rely on Vasu Pharmatech for consistent quality and long service life.

  • Length: 1020 mm
  • Membrane Material: EPDM & Silicone
  • Neck Size: 3/4 BSP
  • Air Flow Rate: 2 – 7.5 m³/hr
  • Bubble Size: Fine bubble
  • Size: 63 mm
  • Pipe Connection: 3/4 inch BSP
  • Diffuser Type: Tube
  • Body Material: PP
  • Application: Fish Farming, Aeration Tank, ETP, STP
  • Brand: Vasu Pharmatech

    The precision-perforated membrane ensures uniform bubble distribution with high oxygen transfer efficiency, making it suitable for continuous and long-term aeration in wastewater and biological treatment systems.

What is a Bubble Diffuser in Water Treatment?

A bubble diffuser is a device installed at the bottom of an aeration tank to inject air into wastewater in the form of bubbles. These bubbles help in increasing the oxygen transfer rate, which supports the growth of aerobic bacteria responsible for breaking down organic pollutants.

The diffuser works by releasing either fine or coarse bubbles depending on the application.

Why is a Bubble Diffuser Used in STP and ETP?

In sewage treatment plants (STPs) and effluent treatment plants (ETPs), the biological treatment stage requires oxygen to support microorganisms. Without proper oxygen levels, the bacteria cannot function efficiently, which leads to foul odor, sludge build-up, and poor-quality discharge.

Using a bubble diffuser for STP ensures:

  • Better oxygen dispersion
  • Faster breakdown of organic matter
  • Reduced energy costs
  • Low maintenance and clog-free operation
Types of Bubble Diffusers We Offer

At Vasu Pharmatech, we manufacture high-performance diffusers with advanced membrane materials and efficient airflow systems. Below are our main diffuser types:

Diffuser TypeShapeBubble SizeBest For
Fine Bubble Tube DiffuserTube TypeMicro/Fine BubblesLarge tanks, high oxygen demand
Fine Bubble Disc DiffuserDisc TypeMicro/Fine BubblesSmall to medium tanks, STPs, ETPs
Coarse Bubble DiffuserTube/Disc TypeLarger BubblesMixing-heavy operations, high turbulence

Specifications of Our Bubble Diffusers

All our diffusers are designed for durability, efficiency, and cost-effectiveness.

✅ SHAPE: Disc & Tube Type
✅ DIA SIZE: 80mm to 150mm
✅ MOC OF MEMBRANE: EPDM / Silicone
✅ MAX. PRESSURE ALLOWED: 1 to 1.5 kg/cm²
✅ AIR FLOW RANGE: 1 – 10 m³/hr
✅ MAX. OPERATING TEMP.: 60°C

These specifications make our diffusers ideal for different stages of wastewater treatment, especially in STPs, ETPs, and industrial processes.

 

How Does a Fine Bubble Diffuser Work?

Fine bubble diffusers produce microbubbles that rise slowly through water. This slow rise time increases the contact time with wastewater, improving oxygen transfer efficiency (OTE).

Our fine bubble disc diffuser and fine bubble tube diffuser are specifically designed to optimize this transfer. These are ideal when high aeration efficiency is needed, such as in the activated sludge process.

Fine bubble diffusers produce microbubbles that rise slowly through water. This slow rise time increases the contact time with wastewater, improving oxygen transfer efficiency (OTE).

Our fine bubble disc diffuser and fine bubble tube diffuser are specifically designed to optimize this transfer. These are ideal when high aeration efficiency is needed, such as in the activated sludge process.

What is the Difference Between Fine and Coarse Bubble Diffusers?

Fine Bubble Diffuser:

  • Produces micro-sized bubbles (1-3 mm)
  • Higher oxygen transfer efficiency
  • Best for biological treatment
  • More energy efficient

 

Coarse Bubble Diffuser:

  • Produces larger bubbles (4-8 mm)
  • Ideal for mixing and preventing sludge settling
  • Better for heavy-duty applications

Choosing the right diffuser depends on your treatment goals and tank size. At Vasu Pharmatech, we help you select the best option based on your plant requirements.

Applications of Bubble Diffuser in Water Treatment

  • Sewage Treatment Plants (STPs)
  • Effluent Treatment Plants (ETPs)
  • Industrial Wastewater Plants
  • Aquaculture and Fish Farming
  • Textile and Chemical Plants
  • Pharmaceutical Wastewater
Fine Bubble Diffuser

Problems Solved by Bubble Diffusers

Users often face challenges like:

  • Sludge accumulation
  • Foul odor
  • Poor BOD/COD removal
  • High electricity consumption

 

Our micro bubble diffuser for wastewater treatment solves all these issues. It ensures:

  • Better dissolved oxygen (DO) levels
  • Improved microbial activity
  • Reduced blower energy requirement
  • Uniform air distribution
  • Longer lifespan of the aeration system

Energy Saving with Fine Bubble Aeration

One of the biggest benefits of using fine bubble for aeration is reduced energy usage. Since fine bubbles provide more surface area, less air is needed to achieve the same oxygen transfer. This leads to lower blower energy and reduced operational costs.

Installation & Maintenance

Our bubble diffuser for sewage treatment plant is easy to install and maintain. With high-quality EPDM/Silicone membranes, they offer:

  • Non-clogging operation
  • High chemical resistance
  • Easy cleaning and membrane replacement
  • Long service life

We also provide support and guidance during installation and after-sales service.

Conclusion

To sum up, a bubble diffuser in water treatment is not just a supporting component—it’s the heart of the aeration system in modern sewage and wastewater treatment plants. Its ability to introduce oxygen in the form of micro or coarse bubbles is essential for maintaining the biological activity required to break down harmful organic matter and reduce pollutants effectively.

Whether you are managing a sewage treatment plant (STP), effluent treatment plant (ETP), or any form of industrial wastewater treatment, the role of a high-efficiency bubble diffuser cannot be ignored. By increasing dissolved oxygen (DO) levels, bubble diffusers support the growth of beneficial aerobic bacteria, speed up the decomposition of waste, and significantly lower Biological Oxygen Demand (BOD) and Chemical Oxygen Demand (COD) levels.

Moreover, when you choose a fine bubble diffuser—whether in tube or disc type—you benefit from maximum oxygen transfer efficiency, low energy usage, and silent, uniform aeration. On the other hand, coarse bubble diffusers are more suited for high-solid environments where turbulence and mixing are priorities.

FAQs

A bubble diffuser in water treatment is a device used to inject air into sewage or wastewater. It releases air in the form of fine or coarse bubbles, which increases dissolved oxygen (DO) levels. This oxygen supports aerobic bacteria that break down organic pollutants in STPs and ETPs, improving the efficiency of biological treatment processes.

Fine bubble diffusers produce tiny bubbles (1–3 mm) that rise slowly and provide high oxygen transfer efficiency, making them ideal for biological treatment. Coarse bubble diffusers, on the other hand, release larger bubbles (4–8 mm) and are better for mixing, agitation, and high-solid content tanks. Both are used based on the specific needs of the treatment plant.

For most sewage treatment plants (STPs), a fine bubble tube diffuser or fine bubble disc diffuser is the best choice. These provide uniform air distribution, higher oxygen transfer, and lower energy consumption, making them ideal for efficient aeration in biological treatment systems.

Choosing the right bubble diffuser for STP or ETP depends on several factors:

  • Tank size and shape
  • Required oxygen transfer rate
  • Type of treatment process
  • Airflow rate needed
  • Budget and energy efficiency goals

Vasu Pharmatech offers expert guidance to help you select the most suitable diffuser based on these parameters.

A micro bubble diffuser offers several benefits:

  • Superior oxygen transfer rate
  • Lower blower power consumption
  • Enhanced microbial activity
  • Reduced sludge buildup and foul odor
  • Long-lasting and low-maintenance operation

These make micro and fine bubble diffusers an essential part of modern wastewater treatment systems.

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We certify that M/s. Vasu Pharmatech, located at 66B, Pocket AD Shalimar Bagh, Delhi-110088, supplied us with a Pharmatech filter press for our 275 KLD ETP plant at M/s. Asian Colour Coated Ispat Ltd. in Bawal, Dist: Rewari (Hr.). The plant was started in January 2018 and is still working well. The product and its performance have been satisfactory up to now.

ASIAN COLOUR COATED ISPAT LIMITED
Rewari, Haryana

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