Diffuser for Aeration System

Fine Bubble Air Diffuser for Areation

A Fine Bubble Diffuser is an aeration device used in water and wastewater treatment plants. Its main purpose is to introduce air (oxygen) into the water through very small bubbles, which increases the oxygen transfer efficiency.

Key Features:

• Bubble Size: Produces very small bubbles (typically less than 2 mm in diameter).
• Material: Usually made of EPDM, silicone, membranes with micro-perforations.

Types:

o Disc Diffuser (most common, 9" or 12" diameter)
o Tube Diffuser (various lengths like 500 mm, 1000 mm)
o Panel Diffuser (flat rectangular shape)

Advantages:

• High oxygen transfer efficiency (better than coarse bubble diffusers).
• Energy-efficient due to smaller bubble size and longer contact time.
• Uniform air distribution.

Applications:

• Activated sludge process in sewage treatment plants (STPs).
• Industrial wastewater treatment.
• Aeration tanks, equalization tanks, and biological reactors.
• Aquaculture (to maintain dissolved oxygen levels).