Several sewage treatment methods of domestic sewage treatment equipment

Domestic sewage is the sewage produced in human daily life. It comes from a wide range of sources, and needs to be treated in more quantities and types of organic matters. Generally, it mainly includes several types such as kitchen wastewater, washing wastewater and discharge wastewater. Their treatment requirements are very high. After all, it is more suitable for secondary use in many types of industrial wastewater. Then, the following small edition will introduce several sewage treatment methods of domestic sewage treatment equipment for you.

1. Physical treatment method: the wastewater treatment method that separates and recovers the undissolved and suspended pollutants (including oil film and oil bead) in the wastewater through physical action, which can be divided into gravity separation method, centrifugal separation method and screen filtration and retention method, etc.

2. Chemical treatment method: a wastewater treatment method for separating and removing dissolved and colloidal pollutants in wastewater or converting them into harmless substances through chemical reaction and mass transfer

3. Biological treatment method: through the metabolism of microorganisms, the organic pollutants in solution, colloid and micro suspension state in wastewater are transformed into stable and harmless substances. According to different microorganisms, biological treatment can be divided into aerobic biological treatment and anaerobic biological treatment.

4. Aerobic biological treatment method is widely used in wastewater biological treatment. According to the tradition, aerobic biological treatment method is divided into activated sludge method and biofilm method. The activated sludge process itself is a kind of treatment unit, anaerobic biological treatment process, also known as biological reduction treatment process, which is mainly used for the treatment of high concentration organic wastewater and sludge. The main treatment equipment used is digestion tank.

5. Biological contact oxidation method: the biological contact oxidation method is used to treat wastewater, that is, the biological contact oxidation process is used to fill the biological reaction tank with fillers, and all fillers are immersed in the oxygenated wastewater.

The above is the detailed process introduction of several sewage treatment methods of domestic sewage treatment equipment, I believe it can let you know about the treatment methods of domestic sewage. These water treated by various sewage treatment equipment, whether used in industry, agriculture or recharge groundwater, must meet the relevant water quality standards, which is normal, otherwise it is illegal.