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Tube Aerator
Our Tubular Aerator is a high-efficiency, energy-saving aeration equipment specifically engineered for municipal and industrial water/wastewater treatment systems. As a core component of aerobic biochemical treatment processes, it adopts advanced membrane material technology and precision structural design to convert compressed air into tiny, uniform bubbles, maximizing oxygen transfer efficiency and providing sufficient dissolved oxygen (DO) for aerobic microorganisms. Widely applied in activated sludge processes, biological contact oxidation, MBR (Membrane Bioreactor), MBBR (Moving Bed Biofilm Reactor), and oxidation ditch systems, this product helps enterprises optimize treatment efficiency, reduce energy consumption, and ensure stable compliance with global water treatment standards, including ISO 9301:2021, ISO 14001:2015, EU Urban Wastewater Treatment Directive (EU 2024/3019), and US EPA Effluent Guidelines.
Product Description
Our Tubular Aerator is a high-efficiency, energy-saving aeration equipment specifically engineered for municipal and industrial water/wastewater treatment systems. As a core component of aerobic biochemical treatment processes, it adopts advanced membrane material technology and precision structural design to convert compressed air into tiny, uniform bubbles, maximizing oxygen transfer efficiency and providing sufficient dissolved oxygen (DO) for aerobic microorganisms. Widely applied in activated sludge processes, biological contact oxidation, MBR (Membrane Bioreactor), MBBR (Moving Bed Biofilm Reactor), and oxidation ditch systems, this product helps enterprises optimize treatment efficiency, reduce energy consumption, and ensure stable compliance with global water treatment standards, including ISO 9301:2021, ISO 14001:2015, EU Urban Wastewater Treatment Directive (EU 2024/3019), and US EPA Effluent Guidelines.
Unlike traditional aeration equipment (such as disc aerator s, coarse bubble aerators) that suffer from low oxygen transfer efficiency, uneven aeration, and easy clogging, our Tubular Aerator features a unique integrated tubular structure with a high-elasticity membrane (EPDM, silicone, or nitrile rubber) embedded with dense microholes. This innovative design generates tiny bubbles (0.5–3mm in diameter), extending the bubble residence time in water by 20–30% and increasing oxygen transfer efficiency (OTE) to 25–45%. It effectively solves industry pain points such as high energy consumption, uneven DO distribution, sludge backflow, and frequent maintenance, becoming an essential energy-saving component for efficient, stable water treatment projects worldwide.
Unlike traditional aeration equipment (such as disc aerator s, coarse bubble aerators) that suffer from low oxygen transfer efficiency, uneven aeration, and easy clogging, our Tubular Aerator features a unique integrated tubular structure with a high-elasticity membrane (EPDM, silicone, or nitrile rubber) embedded with dense microholes. This innovative design generates tiny bubbles (0.5–3mm in diameter), extending the bubble residence time in water by 20–30% and increasing oxygen transfer efficiency (OTE) to 25–45%. It effectively solves industry pain points such as high energy consumption, uneven DO distribution, sludge backflow, and frequent maintenance, becoming an essential energy-saving component for efficient, stable water treatment projects worldwide.
Product Feature
Core Working Principle
The Tubular Aerator operates based on the principle of efficient gas-liquid mass transfer, relying on its unique structural design and high-performance membrane material to realize uniform aeration and oxygen supply, seamlessly integrating with various aerobic water treatment processes:
1.Air Distribution & Bubble Formation: Compressed air is delivered to the tubular aerator through the air distribution pipeline. When the air pressure reaches the set value (0.03–0.05MPa) , the high-elasticity membrane expands, and the dense microholes (up to 16,800 holes per meter) on the membrane open, converting the compressed air into tiny, uniform bubbles. The precision-designed pore distribution ensures that bubbles are evenly released along the entire length of the tube, avoiding local aeration dead zones.
2.Oxygen Transfer & Microbial Metabolism: The tiny bubbles rise slowly in the water, maximizing the contact area between air and water and extending the gas-liquid contact time . This significantly improves the efficiency of oxygen transfer from the gas phase to the liquid phase, increasing the dissolved oxygen content in the wastewater to 2–4mg/L (meeting the requirements of aerobic microorganisms). The sufficient dissolved oxygen provides energy for aerobic microorganisms, promoting the efficient degradation of organic pollutants, ammonia nitrogen, and phosphorus in the wastewater into harmless substances (CO₂, H₂O, nitrogen gas).
3.Self-Cleaning & Stable Operation: When the air supply is stopped, the elastic membrane contracts automatically, closing the microholes to prevent sludge backflow and clogging . When the air supply is restarted, the membrane expands again, and the airflow will bounce off the sludge attached to the membrane surface, realizing self-cleaning. This design reduces the frequency of manual cleaning and maintenance, ensuring stable operation even in wastewater with high suspended solids (SS) content.
Key Product Advantages
1.High Oxygen Transfer Efficiency: The dense microholes on the elastic membrane generate tiny bubbles (0.5–3mm), which increase the gas-liquid contact area and extend the bubble residence time. The oxygen transfer efficiency (OTE) reaches 25–45%, which is 50% higher than that of traditional coarse bubble aerators. This ensures sufficient dissolved oxygen supply for aerobic microorganisms, improving the pollutant degradation efficiency (COD removal rate can be increased by 8–15%).
2.Energy-Saving & Cost-Effective: The optimized structural design reduces the air supply pressure (0.03–0.05MPa) compared with traditional disc aerators (0.05–0.07MPa) , reducing fan energy consumption by 15–25%. The high oxygen utilization rate also reduces the required air volume, further lowering operational costs. A practical case of a 50,000-ton/day wastewater treatment plant shows that annual electricity savings can exceed 200,000 kWh.
3.Uniform Aeration & No Dead Zones: The integrated tubular design ensures that bubbles are evenly released along the entire length of the aerator. When installed horizontally at the bottom of the aeration tank, it can achieve uniform aeration across the entire tank, avoiding local oxygen deficiency or over-aeration, and ensuring consistent water treatment effect.
4.Anti-Clogging & Self-Cleaning: The automatic contraction and expansion of the elastic membrane realize self-cleaning and prevent sludge backflow. The smooth membrane surface and closed microholes when not in use effectively avoid clogging by sludge and suspended solids, extending the cleaning cycle to 3–5 years, reducing maintenance workload and costs.
5.Durable & Corrosion-Resistant: The membrane is made of high-quality EPDM, silicone, or nitrile rubber, with excellent anti-aging, anti-oxidation, and corrosion-resistant properties. It can withstand long-term operation in acidic, alkaline, and high-salt wastewater (pH 2–12) and has a service life of 5–8 years (2–3 times longer than ordinary rubber membranes). The aerator body is made of engineering plastics (PVC, PE) or stainless steel, ensuring no rust or deformation in harsh water treatment environments.
6.Flexible Installation & Easy Maintenance: Adopting modular design, single aerator tubes are connected by quick connectors, supporting non-stop production maintenance . It can be flexibly arranged according to the shape and size of the aeration tank, suitable for both new projects and old system renovations. The lightweight design (single tube weight ≤5kg) simplifies on-site installation and replacement.
7.Strong Adaptability & Versatility: Suitable for various water treatment processes, including AAO, SBR, oxidation ditch, biological contact oxidation, MBR, and MBBR systems . It can adapt to fluctuations in wastewater quality (COD 200–5000 mg/L) and flow, with strong impact load resistance, making it ideal for municipal sewage, industrial wastewater (chemical, food, pharmaceutical, papermaking), and river/lake water remediation.
8.Global Compliance: Fully complies with international standards such as ISO 9301:2021 (Test for oxygen transfer in clean water in aeration systems), ASCE/EWRI 2-06, and DIN EN 12255-15 , as well as EU and US EPA water treatment regulations. We provide customized solutions to meet the specific water quality and process requirements of different regions, helping customers smoothly pass environmental inspections.
Typical Applications
Our Tubular Aerator is widely applied in various municipal and industrial water/wastewater treatment scenarios, serving as a core aeration component for efficient aerobic biochemical treatment:
1.Municipal Sewage Treatment: Aeration tanks in municipal wastewater treatment plants, suitable for AAO, SBR, oxidation ditch, and MBR processes—providing uniform aeration and sufficient dissolved oxygen to ensure stable removal of organic matter, ammonia nitrogen, and phosphorus.
2.Industrial Wastewater Treatment: Treatment of high-concentration organic wastewater from chemical, food processing, pharmaceutical, papermaking, and printing and dyeing industries—improving the biodegradability of wastewater and enhancing pollutant degradation efficiency.
3.Special Water Treatment: MBR and MBBR systems—using bubble scouring to prevent membrane fouling and extend membrane service life ; river and lake water remediation, artificial lake and landscape water aeration—improving water quality and inhibiting eutrophication.
4.Aquaculture Water Purification: Recirculating aquaculture systems—providing sufficient dissolved oxygen to improve the living environment of aquatic organisms and reduce water exchange frequency.
5.Old System Renovation: Replacement of traditional surface aerators or coarse bubble aerators—reducing energy consumption by 15–25% and improving treatment efficiency without major structural modifications to the aeration tank.
Why Choose Our Tubular Aerator for Water Treatment?
As a professional manufacturer of water treatment aeration equipment, we specialize in the R&D, production, and customization of Tubular Aerators. We integrate international advanced membrane material technology, precision molding technology, and water treatment engineering experience, strictly controlling each production process (from material selection to product assembly) to ensure product quality consistency and performance stability. Our products adopt high-quality raw materials and comply with international standards such as ISO 9301:2021 and CJ/T 264-2007, with reliable performance and stable quality.
We provide one-stop services from product customization, technical consultation, on-site installation guidance to after-sales maintenance, tailoring solutions according to the specific parameters of each customer’s water treatment system (aeration tank size, process type, water quality characteristics). Our Tubular Aerator has been exported to dozens of countries and regions, widely used in various water treatment projects and recognized for its high efficiency, energy saving, durability, and ease of maintenance.
In an era of increasingly stringent global water treatment standards and growing demand for energy conservation and emission reduction, our Tubular Aerator helps enterprises optimize operational efficiency, reduce costs, and achieve environmental compliance. Choosing our Tubular Aerator is your reliable guarantee for efficient, stable, and sustainable water treatment.
The Tubular Aerator operates based on the principle of efficient gas-liquid mass transfer, relying on its unique structural design and high-performance membrane material to realize uniform aeration and oxygen supply, seamlessly integrating with various aerobic water treatment processes:
1.Air Distribution & Bubble Formation: Compressed air is delivered to the tubular aerator through the air distribution pipeline. When the air pressure reaches the set value (0.03–0.05MPa) , the high-elasticity membrane expands, and the dense microholes (up to 16,800 holes per meter) on the membrane open, converting the compressed air into tiny, uniform bubbles. The precision-designed pore distribution ensures that bubbles are evenly released along the entire length of the tube, avoiding local aeration dead zones.
2.Oxygen Transfer & Microbial Metabolism: The tiny bubbles rise slowly in the water, maximizing the contact area between air and water and extending the gas-liquid contact time . This significantly improves the efficiency of oxygen transfer from the gas phase to the liquid phase, increasing the dissolved oxygen content in the wastewater to 2–4mg/L (meeting the requirements of aerobic microorganisms). The sufficient dissolved oxygen provides energy for aerobic microorganisms, promoting the efficient degradation of organic pollutants, ammonia nitrogen, and phosphorus in the wastewater into harmless substances (CO₂, H₂O, nitrogen gas).
3.Self-Cleaning & Stable Operation: When the air supply is stopped, the elastic membrane contracts automatically, closing the microholes to prevent sludge backflow and clogging . When the air supply is restarted, the membrane expands again, and the airflow will bounce off the sludge attached to the membrane surface, realizing self-cleaning. This design reduces the frequency of manual cleaning and maintenance, ensuring stable operation even in wastewater with high suspended solids (SS) content.
Key Product Advantages
1.High Oxygen Transfer Efficiency: The dense microholes on the elastic membrane generate tiny bubbles (0.5–3mm), which increase the gas-liquid contact area and extend the bubble residence time. The oxygen transfer efficiency (OTE) reaches 25–45%, which is 50% higher than that of traditional coarse bubble aerators. This ensures sufficient dissolved oxygen supply for aerobic microorganisms, improving the pollutant degradation efficiency (COD removal rate can be increased by 8–15%).
2.Energy-Saving & Cost-Effective: The optimized structural design reduces the air supply pressure (0.03–0.05MPa) compared with traditional disc aerators (0.05–0.07MPa) , reducing fan energy consumption by 15–25%. The high oxygen utilization rate also reduces the required air volume, further lowering operational costs. A practical case of a 50,000-ton/day wastewater treatment plant shows that annual electricity savings can exceed 200,000 kWh.
3.Uniform Aeration & No Dead Zones: The integrated tubular design ensures that bubbles are evenly released along the entire length of the aerator. When installed horizontally at the bottom of the aeration tank, it can achieve uniform aeration across the entire tank, avoiding local oxygen deficiency or over-aeration, and ensuring consistent water treatment effect.
4.Anti-Clogging & Self-Cleaning: The automatic contraction and expansion of the elastic membrane realize self-cleaning and prevent sludge backflow. The smooth membrane surface and closed microholes when not in use effectively avoid clogging by sludge and suspended solids, extending the cleaning cycle to 3–5 years, reducing maintenance workload and costs.
5.Durable & Corrosion-Resistant: The membrane is made of high-quality EPDM, silicone, or nitrile rubber, with excellent anti-aging, anti-oxidation, and corrosion-resistant properties. It can withstand long-term operation in acidic, alkaline, and high-salt wastewater (pH 2–12) and has a service life of 5–8 years (2–3 times longer than ordinary rubber membranes). The aerator body is made of engineering plastics (PVC, PE) or stainless steel, ensuring no rust or deformation in harsh water treatment environments.
6.Flexible Installation & Easy Maintenance: Adopting modular design, single aerator tubes are connected by quick connectors, supporting non-stop production maintenance . It can be flexibly arranged according to the shape and size of the aeration tank, suitable for both new projects and old system renovations. The lightweight design (single tube weight ≤5kg) simplifies on-site installation and replacement.
7.Strong Adaptability & Versatility: Suitable for various water treatment processes, including AAO, SBR, oxidation ditch, biological contact oxidation, MBR, and MBBR systems . It can adapt to fluctuations in wastewater quality (COD 200–5000 mg/L) and flow, with strong impact load resistance, making it ideal for municipal sewage, industrial wastewater (chemical, food, pharmaceutical, papermaking), and river/lake water remediation.
8.Global Compliance: Fully complies with international standards such as ISO 9301:2021 (Test for oxygen transfer in clean water in aeration systems), ASCE/EWRI 2-06, and DIN EN 12255-15 , as well as EU and US EPA water treatment regulations. We provide customized solutions to meet the specific water quality and process requirements of different regions, helping customers smoothly pass environmental inspections.
Typical Applications
Our Tubular Aerator is widely applied in various municipal and industrial water/wastewater treatment scenarios, serving as a core aeration component for efficient aerobic biochemical treatment:
1.Municipal Sewage Treatment: Aeration tanks in municipal wastewater treatment plants, suitable for AAO, SBR, oxidation ditch, and MBR processes—providing uniform aeration and sufficient dissolved oxygen to ensure stable removal of organic matter, ammonia nitrogen, and phosphorus.
2.Industrial Wastewater Treatment: Treatment of high-concentration organic wastewater from chemical, food processing, pharmaceutical, papermaking, and printing and dyeing industries—improving the biodegradability of wastewater and enhancing pollutant degradation efficiency.
3.Special Water Treatment: MBR and MBBR systems—using bubble scouring to prevent membrane fouling and extend membrane service life ; river and lake water remediation, artificial lake and landscape water aeration—improving water quality and inhibiting eutrophication.
4.Aquaculture Water Purification: Recirculating aquaculture systems—providing sufficient dissolved oxygen to improve the living environment of aquatic organisms and reduce water exchange frequency.
5.Old System Renovation: Replacement of traditional surface aerators or coarse bubble aerators—reducing energy consumption by 15–25% and improving treatment efficiency without major structural modifications to the aeration tank.
Why Choose Our Tubular Aerator for Water Treatment?
As a professional manufacturer of water treatment aeration equipment, we specialize in the R&D, production, and customization of Tubular Aerators. We integrate international advanced membrane material technology, precision molding technology, and water treatment engineering experience, strictly controlling each production process (from material selection to product assembly) to ensure product quality consistency and performance stability. Our products adopt high-quality raw materials and comply with international standards such as ISO 9301:2021 and CJ/T 264-2007, with reliable performance and stable quality.
We provide one-stop services from product customization, technical consultation, on-site installation guidance to after-sales maintenance, tailoring solutions according to the specific parameters of each customer’s water treatment system (aeration tank size, process type, water quality characteristics). Our Tubular Aerator has been exported to dozens of countries and regions, widely used in various water treatment projects and recognized for its high efficiency, energy saving, durability, and ease of maintenance.
In an era of increasingly stringent global water treatment standards and growing demand for energy conservation and emission reduction, our Tubular Aerator helps enterprises optimize operational efficiency, reduce costs, and achieve environmental compliance. Choosing our Tubular Aerator is your reliable guarantee for efficient, stable, and sustainable water treatment.
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