The current main processes for sewage treatment include air flotation/AO/A2O and MBR and can be used in combination.

According to the raw water quality and product water requirements, different processes can be selected to meet the requirements.

Usually, the domestic sewage can reach the first level B standard by using A2O, and the A2O+MBR can reach the first level A standard.

In addition, it can be designed as buried type, integrated type, container type, etc.