Function Of fine Bubble Aeration Disc Diffuser
1. Air Distribution: Compressed air is supplied to the diffuser through the air supply system. When air reaches the diffuser, it is evenly distributed across the membrane. The design of the diffuser ensures that air pressure is maintained uniformly across the surface.
2. Bubble Formation: As air passes through the tiny perforations in the membrane, it forms numerous fine bubbles. These perforations are typically in the range of 1-2 millimeters in diameter, which is why they are referred to as "fine" bubbles.
3. Oxygen Transfer: The fine bubbles rise slowly through the water due to their small size, providing a high surface area to volume ratio. This characteristic maximizes the contact time between the air and water, allowing more oxygen to dissolve into the water. The slow ascent of the bubbles also ensures that oxygen is evenly distributed throughout the water column.
4. Mixing: The rising bubbles create a gentle mixing action within the water, which helps distribute oxygen and nutrients evenly. This mixing action prevents the formation of stagnant zones and ensures that aerobic microorganisms have access to the oxygen and nutrients they need to thrive.
Key Functions of Fine Bubble Aeration Disc Diffuser
1. Efficient Oxygen Transfer: The primary function of fine bubble aeration disc diffuser is to enhance the oxygen transfer rate. The fine bubbles have a high surface area to volume ratio, allowing for more effective oxygen dissolution in the water. This high efficiency is crucial for supporting aerobic microorganisms that degrade organic pollutants.
2. Mixing: The bubbles generated by the diffuser help to mix the wastewater, ensuring that oxygen and nutrients are evenly distributed throughout the tank. This mixing prevents the formation of dead zones where microbial activity might be hindered due to lack of oxygen.
3. Energy Savings: Fine bubble aeration systems are known for their energy efficiency. Due to the superior oxygen transfer efficiency, these systems require less air to achieve the desired level of oxygenation compared to coarse bubble systems. This reduction in air demand translates to lower energy consumption.
4. Improved Treatment Performance: By providing a consistent and adequate supply of oxygen, fine bubble aeration disc diffuser enhance the overall performance of the biological treatment process. This leads to better removal of organic matter, nitrogen, and phosphorus, resulting in higher quality effluent.