Underground sewage treatment equipment

Working principle and scope of application of buried sewage treatment equipment
Working Principle:
1. The removal of organic pollutants and ammonia nitrogen by geographic sewage treatment equipment mainly relies on the AO biological treatment process in the equipment.
2. The working principle is that due to the high concentration of organic matter in sewage, microorganisms are in a state of hypoxia. At this time, microorganisms are facultative microorganisms, which convert and decompose organic nitrogen in sewage into NH3-N. At the same time, they use organic carbon as an electron donor to convert NO2-N and NH3-N into N2, and also use some organic carbon sources and NH3-N to synthesize new cellular substances. Therefore, the * tank not only has a certain organic matter removal function to reduce the organic load of subsequent aerobic tanks, which is conducive to nitrification, but also relies on the high concentration of organic matter in raw water to complete nitrification and eliminate nitrogen eutrophication pollution.
3. At level 0, due to the significant decrease in organic matter concentration, there is still a certain amount of organic matter and high NH3-N present. In order to further oxidize and decompose organic matter, and to ensure smooth nitrification while carbonization is complete, an aerobic biological contact oxidation tank with low organic load is set up at level 0. Aerobic microorganisms and self oxidizing bacteria (nitrifying bacteria) are mainly present in the level 0 tank. Aerobic microorganisms decompose organic matter into CO2 and H2O; Autotrophic bacteria (nitrifying bacteria) use inorganic carbon produced by the decomposition of organic matter or CO2 in the air as a nutrient source to convert NH3-N in wastewater into NO2-N, NO3-N. The effluent from the 0-level tank is returned to the * tank, providing an electron acceptor for the * tank. Eliminate nitrogen pollution through denitrification.
Scope of application:
1. Hotels, restaurants, sanatoriums, hospitals;
2. Residential communities, villages, and towns;
3. Stations, airports, seaports, and ships;
4. Factories, mines, tourist attractions, scenic spots;
5. Various industrial organic wastewater similar to domestic sewage.