To understand the product we have to welcome you to the world of Micro & Ultrafine Bubble Technology and the NEW CLASSIFICATION OF BUBBLES by the technical committees ISO/TC 281 – Fine bubble technology under the management of Dr. Nobuhiro Aya.
Micro and Ultra-Fine Bubbles are extremely small gas bubbles that have several unique physical properties that make them very different from normal bubbles. These properties make UFB-Ultra Fine Bubbles a superior aeration method for a number of applications around the world.
ALL references made to “fine bubbles” in any technical documentation published prior to mid 2017, need to be carefully reviewed to avoid any confusion with the performance of claims made by manufacturers of aeration productsClaasEco found that most equipment INCORRECTLY refer to producing “fine bubbles” when it in fact only produce course and/or macro-bubbles that rise very quickly to the surface and do very little to leave any gas behind in the liquids like water. 


The Ultra-AIR is a system developed with the latest award winning patented aeration technology in the world to increase the dissolved oxygen (DO) in water at rates and speeds never been seen before. Our advanced technologies, that includes the MB/UFB generators, aerates water at a rate of 1 910 828 ultrafine bubbles per 1ml of water, a first in the water treatment industry.

What makes the technology so amazing is that we can add any gas into the bubble, with the airflow increase and decrease the size of the bubble and thus be able to manage the process of dissolving a gas into a liquid.


Aeration is used in water and wastewater treatment processes to deliver oxygen to microorganisms responsible for the biological oxidation of carbonaceous material and ammonia. Aerobic processes are used to degrade biological oxygen demand (BOD), chemical oxygen demand (COD), total Kjeldahl nitrogen (TKN), and ammonia from water. One of the fundamental control parameters in aerobic processes is dissolved oxygen (DO).

Many treatment processes lack sufficient dissolved oxygen due to excess loading, under-performing aeration systems or antiquated designs. Low disolved oxygen levels encourage the growth of filamentous bacteria that can cause process upsets related to sludge bulking and foaming. Furthermore, low dissolved oxygen levels can result in poor treatment efficiency and lead to potential discharge violations. Adding additional aeration capacity can be complex and costly; however, the addition of ClaasEco Ultra-AIR MB/UFB (Ultra-Fine Bubbles) generators can be used to replace and/or supplement under-performing aeration systems by applying biologically available dissolved oxygen exactly where it is needed to support the biological process in quick, cost-effective and modular fashion.

The new era of aeration is here to solve large problems with tiny bubbles.

ULTRA-YIELD Frequently Asked Questions


-Production of a large amount of Micro and Ultrafine bubbles with extremely high dissolubility of oxygen.
-Increased saturation of dissolved oxygen in water.
-Compact, portable, and easy installation.
-Low energy consumption (only 250W, 400W, 1.5kW).
-Low and easy maintenance.
-Mixing and reducing the biofilm media.
-To maintain the DO level for survival of aerobic bacteria.
-For BOD removal at extremely fast rate and for the Nitrification process.
-Maintain the aesthetic condition of water.
-To avoid foul smell.

On the pump – As per pump manufacturer terms and conditions
On aerator – 10 years – subject to terms and conditions. 


On the pump – As advised by pump manufacturer you choose.
On aerator – no moving parts – no maintenance – advised to clean when servicing the pump. 



Better Collision
The negative surface charge of ClaasEco MB and Ultra-Fine Bubbles limits bubble coalescence, ensuring they stay separated in solution. The bubbles charge, in combination with the high concentration of Ultra Fine Bubbles delivered to the wastewater by the ClaasEco MB and Ultra-Fine Bubbles equipment generator, increases the probability of collision with suspended matter and improves floatation rates.

Rise rate Flexibility
The gas-injection rate through ClaasEco MB and Ultra-Fine Bubbles generator is tuneable, enabling operators to manipulate the size of bubbles produced and adjust rise rates accordingly to meet the needs of the water being treated. As bubble size decreases so does its buoyancy and subsequently its rise rate. A lower rise rate is advantageous for froth flotation of coarse particles and hard-to-float suspensions that require relatively long slide times. Meanwhile, a more rapid rise rate may be acceptable for larger, more buoyant particle removal.

Improved Chemical Efficiency
The flotation process is often heavily dependent on coagulants and flocculants to maximize particle collision rates and produce floc ClaasEco MB and Ultra-Fine Bubbles-system improves this process by generating over one billion ClaasEco MB and Ultra-Fine Bubbles per milliliter. The sheer concentration of MB and Ultra Fine Bubbles, coupled with their strong surface charge, increases collision rates and enhances the formation of floc. The net effect is a reduction in the quantity of chemicals needed to achieve flotation.


Efficient Aeration
A ClaasEco MB and Ultra-Fine Bubbles generators produces over one billion Ultra Fine Bubbles, each smaller than the wavelength of light, per millilitre of water. The sheer volume of bubbles, coupled with neutral buoyancy and high surface tension, results in industry-leading oxygen transfer of greater than 90%, efficiently increasing DO and ORP and oxidizing H2S and other odour-causing compounds.

Odour Prevention
Ultra Fine Bubbles produced by the ClaasEco MB and Ultra-Fine Bubbles equipment system are neutrally buoyant, meaning they do not float to the surface of the water and rupture. They instead disperse following Brownian motion, distributing evenly throughout the body of water, regardless of water column depth. Upon achieving DO saturation, the remaining Ultra Fine Bubbles introduced to the body of water will remain in suspension creating a DO buffer. When DO is consumed in the water and an oxygen gradient is present, the Ultra Fine Bubbles in solution dissolve additional oxygen into the body of water, maintaining a steady-state DO concentration and preventing the formation of more H2S.

Energy Efficiency through Existing Pumping
ClaasEco MB and Ultra-Fine Bubbles generators operate as inline gas injection systems meaning as water flows through the generator, gas is injected in the form of a nanobubble. ClaasECO-Water UFB-systems are available with or without a pump. When supplied as the latter, customers can attach ClaasEco MB and Ultra-Fine Bubblesgenerators to the discharge end of a pump as long as the existing pump can accommodate certain pressure drops and still maintain necessary flow. When capable of adding the nanobubble generator to distribution pumps such as those found in pump stations and force mains, ClaasEco MB and Ultra-Fine Bubbles generators provide the most energy efficiency aeration solution on the market and can start to treat H2S and even BOD upstream of the treatment plant at a fraction of the energy of conventional aeration solutions.



Reduced Costs
ClaasEco MB and Ultra-Fine Bubbles differ from the fine bubbles typically used for aeration because they do not rise to the surface and burst. Instead, they exhibit Brownian motion. They also rapidly transfer oxygen (or any interior gas) to water. Their rapid dissolution and Brownian motion provide efficient oxygen transfer throughout the water column independent of water depth. Additionally, studies have shown that a system aerated with Ultra Fine Bubbles can improve treatment efficiencies, providing more biological treatment per unit volume of bioreactor than a system aerated by fine or coarse bubbles alone.

Plug & Play
ClaasEco MB and Ultra-Fine Bubbles technology is simple to install adjacent to an aeration tank without tying into or modifying the existing aeration system. Additional aeration capacity can be implemented within hours, without the use of heavy equipment or having to take basins offline. This is, in part, the reason why ClaasECOWater Ultra Fine Bubble generators are rapidly becoming the preferred industry method to rapidly and efficiently supplement aeration.



Membrane bioreactors (MBR) have been widely applied at industrial facilities to provide pre-treatment of wastewater prior to discharge to the collection system. One of the advantages of an MBR system is that it provides a high degree of treatment in a compact footprint, in part because it is operated at high mixed liquor suspended solids (MLSS) concentrations ranging from 8,000 to 18,000 mg/L. A common problem encountered with industrial MBRs is the inability to maintain the target dissolved oxygen (DO) level during peak loading events. This is partially attributed to the nature of industrial wastewater, which is typically inconsistent in water quality and flow, resulting in periods of low influent loading followed by high influent loading. This dramatic change in loading may cause a sudden spike in oxygen uptake rate in the aeration basin immediately followed by a sustained decline in DO. If the oxygen-transfer system is not able to recover by supplying the DO required to support the biological system, BOD removal across the MBR will decline. The capital expenditure required to expand or upgrade an undersized aeration system can be substantial, often with limited to no return on investment across the expected useful life of the equipment. However, the application of Ultra Fine Bubbles in wastewater treatment provides cost-effective supplemental aeration for MBRs.