Who can talk about the commonly used process wastewater treatment processes, their advantages and disadvantages, and what wastewater is suitable for them? One is probably enough. Beginners seek guidan

Who can talk about the commonly used process wastewater treatment processes, their advantages and disadvantages, and what wastewater is suitable for them? One is probably enough. Beginners seek guidance! Environment in Qin Yong, Sichuan

Biological contact oxidation is a biofilm process between activated sludge process and biofilter, which is characterized in that fillers are arranged in the tank, and the sewage is oxygenated by aeration at the bottom of the tank, so that the sewage in the tank is in a flowing state, so as to ensure full contact between the sewage and the fillers in the sewage and avoid the defect of uneven contact between the sewage and the fillers in the biological contact oxidation tank.

In this method, oxygen required by microorganisms is provided by blast aeration, which is mainly composed of an aeration blower and a special aerator. When the biofilm grows to a certain thickness, the microorganisms on the filler wall will undergo anaerobic metabolism due to lack of oxygen, and the generated gas and aeration will cause the biofilm to fall off and promote the growth of new biofilm. At this time, the fallen biofilm will flow out of the pool with the effluent. Biological contact oxidation method has the following characteristics:

1. Due to the large specific surface area of the filler, the aeration conditions in the tank are good, the biomass per unit volume in the tank is high, and the volume load of the biological contact oxidation tank is high;

2. Because of the large amount of biosolids in the biological contact oxidation tank, the water flow is completely mixed, and it has strong adaptability to the sudden change of water quality and quantity;

3, the amount of excess sludge is small, the problem of sludge bulking does not exist, and the operation and management are simple.

Your question is a bit broad.