Airhorse 6 oil-free screw blowers support efficient aeration at a Shandong wastewater plant
Rising environmental standards demand more stable, efficient, and reliable aeration systems. Blower performance directly affects aeration and wastewater treatment efficiency.
As aeration systems require long-term, continuous operation, equipment energy consumption, maintenance costs, and operational reliability are key concerns for wastewater treatment plants.
Project Background
As wastewater loads fluctuate, aeration systems must adjust oxygen supply accordingly. However, existing equipment at a Shandong wastewater plant struggled with precise regulation, causing insufficient aeration or excessive air supply and energy waste.
Long-term continuous operation also requires high reliability, as frequent maintenance increases costs and may disrupt stable wastewater treatment.

To meet requirements for air quality, energy efficiency, and reliability, Airhorse provides tailored aeration solutions and system configurations
3 units of 37 kW oil-free screw blowers
3 units of 55 kW oil-free screw blowers
Multi-unit coordination delivers stable, clean, and efficient air supply, optimizing the aeration system.
Oil-free compression ensures clean air
In wastewater aeration, air quality directly affects system stability and treatment performance. Traditional oil-lubricated equipment may introduce oil into the compressed air, reducing air quality and increasing maintenance costs.
Airhorse oil-free screw blowers use oil-free compression technology to deliver clean air, reducing oil contamination risks and supporting stable, efficient aeration.

Clean compressed air helps improve treatment efficiency and meet stricter
PM variable-frequency matches demand.
During wastewater treatment, oxygen demand fluctuates with flow rates, pollutant loads, and process stages. Conventional fixed-speed equipment may continue operating at high output during low-demand periods, causing energy waste.
Airhorse oil-free screw blowers use permanent magnet variable-frequency technology to adjust frequency and airflow in real time, matching output to system demand.
This reduces energy waste and operating costs while maintaining stable aeration performance.
Reliable design ensures stable operation
Wastewater treatment plants require blowers to operate reliably under continuous, high-load conditions.
Airhorse’s oil-free screw blowers feature a highly reliable structural design. With stable core component performance and enhanced durability, the equipment effectively minimizes the risk of operational failures.
Stable equipment performance and low maintenance requirements help customers reduce the risk of downtime and enhance the overall operational reliability of the wastewater treatment system.

The Shandong project uses six Airhorse oil-free screw blowers operating together to enhance aeration stability, reduce energy consumption and maintenance demands, and optimize the air supply system.
Airhorse provides efficient, energy-saving products and professional air solutions for environmental protection and water treatment, supporting more efficient and sustainable operations.