Focus on aeration diffusers of water treatment technology

By: Kate Chen
Email: [email protected]
Date: Sep 06th, 2024

As an efficient aeration device, aeration diffusers play an indispensable role in the water treatment process. By evenly dispersing air into the water, aeration diffusers can:

Increase dissolved oxygen content: Provide sufficient oxygen for aerobic microorganisms and accelerate the degradation of organic matter.

Promote mixing: Accelerate the oxidation and decomposition of harmful substances in water and improve treatment efficiency.

Remove odor: Effectively remove volatile organic matter in water and improve water quality.

Our Aeration Diffuser Products

As a manufacturer focusing on water treatment, we are deeply involved in the field of aeration diffusers and have developed a series of efficient and reliable products, including:

Disc aerator: Compact structure, high aeration efficiency, widely used in sewage treatment plants.

Tube aerator: Easy to install, simple to maintain, suitable for various water treatment processes.

Spiral mixing aerator: Combines aeration and mixing functions to improve treatment efficiency.

Aerator Type	Characteristics	Advantages	Disadvantages	Typical Applications
Fine Bubble Diffuser	Small pore size, fine bubbles	High mass transfer efficiency, good oxygen utilization	Susceptible to clogging, higher cost	Activated sludge process, membrane bioreactor
Coarse Bubble Diffuser	Large pore size, coarse bubbles	Simple structure, low cost	Lower mass transfer efficiency, prone to clogging	Primary sedimentation, oxidation ditch
Membrane Aerator	Microporous membrane, very fine bubbles	Extremely high mass transfer efficiency, no clogging	High cost, susceptible to damage	High purity water treatment, MBR process
Mechanical Aerator	Uses mechanical devices to introduce air into water	Large aeration capacity, suitable for high flow rates	High energy consumption, noisy	Oxidation ponds, aeration tanks
Surface Aerator	Creates turbulence on the water surface	Simple structure, low cost	Lower oxygen transfer efficiency, susceptible to weather conditions	Oxidation ponds, lagoons

Selection suggestions:

Poor water quality and more suspended matter: Choose a porous aerator or mechanical aerator that is wear-resistant and not easy to clog.

Requires high dissolved oxygen and large processing volume: Choose microporous aerators or membrane aerators with high aeration efficiency and high oxygen utilization rate.

High noise requirements: Choose membrane aerators or low-noise mechanical aerators.

Limited budget: Choose low-cost porous aerators or mechanical aerators.

Application of aeration diffusers in different water treatment processes

Activated sludge method: Microporous aerators and membrane aerators are common choices, which can provide sufficient oxygen and promote the degradation of organic matter.

Biofilm method: Both porous aerators and microporous aerators can be used, and the appropriate aeration intensity can be selected according to the thickness and load of the biofilm.

Oxidation pond: Mechanical aerators are often used for aeration, which can quickly increase the dissolved oxygen in the water.

MBR process: Membrane aerators are the first considered choice, which can provide high-purity oxygen and ensure the long-term stable operation of the membrane.