What is the principle of MBBR wastewater treatment plant?

The principle of the MBBR wastewater treatment plant is a wastewater treatment technology based on the biofilm method, which mainly realizes wastewater treatment through the following aspects:

1. Formation of biofilm
A large number of suspended fillers are used in the MBBR process, and these fillers have a large specific surface area. After the sewage enters the treatment system, microorganisms will gradually adhere to the surface of the filler to form a layer of biofilm. The biofilm contains various microorganisms, such as bacteria, fungi, protozoa, etc., which constitute a complex ecosystem that can decompose and transform organic matter, nitrogen, phosphorus, and other pollutants in the sewage.

2. The role of moving bed
"Moving bed" is an important feature of MBBR. Through aeration or mechanical stirring, the filler is suspended in the reactor and flows continuously, which can ensure that the sewage is in full contact with the biofilm and improve the mass transfer efficiency. At the same time, the flow of the filler can also prevent excessive growth and blockage of the biofilm, and maintain the activity and stability of the biofilm.

3. Removal of pollutants
Under the action of the biofilm, the organic matter in the sewage is decomposed into carbon dioxide and water by microorganisms to achieve the removal of organic matter. For nitrogen removal, the MBBR process usually utilizes the action of nitrifying and denitrifying bacteria. Under aerobic conditions, nitrifying bacteria convert ammonia nitrogen into nitrite and nitrate; under anoxic conditions, denitrifying bacteria reduce nitrate to nitrogen gas, thereby achieving nitrogen removal. For phosphorus removal, some polyphosphate bacteria take up excessive phosphorus under aerobic conditions and then remove phosphorus from the system by discharging excess sludge.

The MBBR wastewater treatment plant achieves efficient removal of organic matter, nitrogen, phosphorus, and other pollutants in wastewater through the formation of biofilm, the action of moving beds, and the synergistic action of multiple microorganisms, thereby achieving the purpose of purifying wastewater.

If you want to know more about the principles of MBBR wastewater treatment plants, etc., please contact BioCell Environmental Technology for more consultation. Our professional team is always on call, willing to listen to your needs and provide you with tailored consultation and guidance.

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