Air diffusers unsuitable for industrial wastewater

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OHR AERATORInstantaneous gas–liquid reaction diffuser

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WARNING: Beware of the following when choosing an air diffuser—

Air diffusers unsuitable for industrial wastewater

Oxygen is difficult to dissolve in water

As air is about 773 times lighter than water, air bubbles discharged into water will rapidly rise to the surface. Further, contaminants and other substances in wastewater also impede oxygen dissolution. Hence it is extremely difficult to dissolve oxygen efficiently without a powerful air diffuser that can instantaneously mix gas and liquid. Be aware that many air diffusers do not satisfy these requirements because their internals have not been designed with scientific principles in mind.

Porous air diffusers only generate fine bubbles and increase contact area

Porous air diffusers work by discharging millimeter-scale bubbles from a large number of fine pores, each of which is a few microns across. These bubbles rise slowly and remain in the water for a relatively long period, during which they markedly increase the total contact area between the air and the water.
However, these diffusers cannot effectively dissolve oxygen into wastewater (which is full of impurities) because their only function is to discharge bubbles at a uniform size of about 5–20 mm in diameter. This lack of an ability to forcibly dissolve oxygen into water is a serious drawback. For more details, please follow the link below.
What is the alpha value

Vertical air diffusers must have a strong gas–liquid mixing function

Before the OHR AERATOR, there was no air diffuser capable of mixing gas and liquid. Our innovation was to collide and react the gas and liquid using special internal structures designed according to fluid dynamical principles. The OHR AERATOR has an excellent reputation in the industry for its effectiveness in wastewater treatment and ability to accelerate chemical reactions. See the link below for real-world examples.
Real-world examples

Several other vertical air diffusers have recently come onto the market because it has become common knowledge in the wastewater treatment industry that all air diffusers require a mixing function. However, the bubbles that vertical air diffusers discharge are relatively large, so rise relatively rapidly; the gas and liquid must therefore quickly be made to collide in order to achieve effective mixing. Non-OHR vertical air diffusers have internal structures that are either excessively complicated (high risk of clogging) or excessively simplistic (low efficiency).
There are confirmed cases of vertical air diffusers becoming clogged with activated sludge, MBBR carriers, and fallen leaves.
Vertical air diffusers absolutely require both a powerful mixing function and clog-free operation — this is why designing an effective internal structure is so difficult. Thus, with the exception of OHR, all vertical air diffusers suffer from clogging or possess inadequate mixing functions.

Effective air diffuser mechanisms are based on sound scientific principles

Because air diffusers are gas and liquid reactors, a mechanism grounded in the laws of physics is paramount for achieving efficient reaction. The innovative structures of the OHR AERATOR, which take inspiration from aerodynamics, allow for the powerful mixing of gas and liquid without clogging. Please follow the link below for more details of this mechanism and a comparison with other air diffusers.