So accurately, the sewage treatment system should contain: structures, mechanical equipment, monitoring equipment, piping valves and so on. Among them:
Structures, mainly constitutes a process system of various buildings such as: catchment ponds, sedimentation tanks, regulating tanks, anaerobic tanks, aerobic tanks, sludge tanks, etc.
Mechanical equipment, mainly in the installation of structures to achieve the purpose of the process of a variety of equipment, such as: grids, scraping machine, aeration equipment, sludge dewatering equipment, dosing equipment, a variety of pumps, etc.. There are a number of equipment and structures built into the integrated equipment. Such as: box air flotation tank, inclined tube sedimentation tank, integrated membrane bioreactor, and even some anaerobic systems are steel integrated equipment.
Monitoring equipment, including pH meters, flow meters, level meters and other monitoring and control equipment.
Piping valves, including a variety of sewage piping, biogas piping, sludge piping, and valves.
Generally speaking, all of the above should belong to the sewage treatment equipment.
Divided more carefully, in addition to brick or cement poured all kinds of structures, other mechanical equipment (including mechanical processing of integrated equipment), electronic control equipment, piping valves, etc. are sewage treatment equipment.