The integrated sewage treatment system is a sewage treatment device that integrates a variety of sewage treatment processes within one piece of equipment or a relatively compact space, featuring the following characteristics:

1. Compact Structure: It integrates different functional units such as the equalization tank, anaerobic tank, aerobic tank, and sedimentation tank into one or several boxes, occupying a small area. It is suitable for places with limited land resources, such as urban residential areas and tourist scenic spots.

2. Good Treatment Effect: By combining multiple treatment processes, it can effectively remove pollutants such as organic matter, nitrogen, and phosphorus in the sewage. For example, macromolecular organic matter is degraded by anaerobic microorganisms, and small molecular organic matter and ammonia nitrogen are further removed by aerobic microorganisms, and then the separation of sludge and water is achieved through sedimentation.

3. High Degree of Automation: It can be equipped with an automatic control system, which can automatically control the operation of the equipment, chemical dosing, sludge discharge, and other operations. This reduces manual intervention, lowers operation and management costs, and ensures the stable operation of the system at the same time.

4. Wide Application Range: It can be used for domestic sewage treatment, such as rural domestic sewage and decentralized urban domestic sewage. It is also suitable for the treatment of industrial wastewater, such as the pretreatment or advanced treatment of food processing wastewater and printing and dyeing wastewater.

5. Convenient Installation: It mostly adopts a modular design. After being prefabricated in the factory and transported to the site, it only requires simple installation and debugging to be put into use, with a short construction period.

6. Low Sludge Production: Through the optimization of the treatment process, part of the sludge can be digested within the system, reducing sludge discharge and lowering the cost of sludge treatment and the risk of secondary pollution.

Common integrated sewage treatment systems include MBR (Membrane Bioreactor) integrated equipment, AO (Anaerobic-Aerobic) integrated equipment, etc. Different types are suitable for sewage with different water qualities and treatment requirements.