Sewage aeration fan
What is an sewage aeration fan?
- An sewage aeration fan is a device used to force gas into a body of water or liquid. It uses high-pressure fans or blowers to force air or other gases into water or liquid through conveying equipment and diffusion equipment. This process is called blast aeration.
Working principle
- The working principle of an sewage aeration fan is to blow air into the water body through a high-speed rotating impeller. Under the action of centrifugal force and inertia, the air at the outlet of the impeller acquires sufficient kinetic energy and potential energy to radiate and diffuse in the direction perpendicular to the pump axis. At the same time, longitudinal stirring and mixing occur between the air and the water body, causing the dissolved oxygen in the water body to rapidly increase.
What is the purpose of the aeration blower?
- The main uses of aeration blowers include the following aspects:
- Water treatment and sewage treatment: Aeration blowers purify water quality by blowing air into the water to form bubbles, provide sufficient oxygen, and promote the respiration and metabolism of aquatic organisms.
- During the water treatment process, the aeration blower can increase the concentration of dissolved oxygen in the water, helping harmful organisms in the sewage to be oxidized, degraded or adsorbed, thereby achieving the purpose of purifying water quality.
- Sludge Treatment: In sludge treatment systems, aeration blowers are used for aeration and mixing. It can provide sufficient oxygen supply to the bacteria in the sludge, promote the anaerobic degradation of the sludge to produce methane and other useful substances, and volatilize harmful gases, thereby achieving the purpose of purifying the sludge.
- Industrial wastewater treatment: The combination of aeration blowers and bioreactors can efficiently treat industrial wastewater, reduce harmful components in wastewater, and protect the environment and human health.
- Aquaculture: In aquaculture, aeration blowers provide oxygen to the breeding pond to meet the oxygen demand of aquaculture and increase the growth rate and yield of aquatic organisms.
- Biological fermentation: In the field of biological fermentation, aeration blowers are used for stirring and oxidation, promoting the oxidation of organic matter and the removal of harmful gases, improving fermentation efficiency and ensuring product quality.
What blowers are used in wastewater treatment?
- Commonly used types of blowers in sewage treatment include Roots blowers, multi-stage centrifugal fans, single-stage high-speed centrifugal fans, air suspension blowers and magnetic suspension blowers, etc.. Each of these fans has advantages and disadvantages and is suitable for different process needs.
Advantages and disadvantages of various types of blowers
- Roots blower: It is cheap, simple in structure and stable in performance. However, it has low efficiency, high energy consumption and loud noise under high aeration pressure, so it is gradually being eliminated.
- Multi-stage centrifugal fan: The efficiency is slightly higher, but the flow rate changes greatly when the wind pressure changes, and the use is gradually reduced.
- Single-stage high-speed centrifugal fan: large air volume and high efficiency, but consumes a lot of energy and makes a lot of noise.
- Air suspension blower and magnetic suspension blower: high efficiency, low friction resistance, low noise, low maintenance, and gradually expanding market share.
