Mobile Toilet Sewage Storage

There are several main methods for the storage and treatment of sewage from mobile toilets:

Sewage storage tank storage is a relatively common approach. A sealed sewage storage tank is installed at the bottom of the mobile toilet, and sewage is directly discharged into the tank. When the tank is nearly full, a specialized sewage suction truck is required to extract the sewage and then transport it to a sewage treatment plant for centralized treatment. For some storage-type mobile toilets, the sewage storage tank is located beneath the squat toilet. During sewage removal, the suction truck can directly insert into the suction port for extraction, or the sewage can be discharged into a septic tank through a sewage discharge valve. This method is relatively simple to operate and has low costs, making it suitable for various locations. However, the sewage storage tank needs to be cleaned regularly; otherwise, it may affect the normal use of the mobile toilet.

Connection to municipal sewage pipelines is suitable for locations with municipal sewage pipelines nearby, such as city streets and parks. Some mobile toilets are directly connected to municipal sewage pipelines through pipes, and the sewage flows into the sewage treatment plant along the pipelines for treatment. The advantage of this method is that it eliminates the need for complex sewage storage and treatment on-site at the mobile toilet, reducing the need for manual cleaning. However, the prerequisite is that there must be suitable municipal sewage pipelines available for connection.

Biochemical treatment technology is a relatively environmentally friendly approach. Some mobile toilets are equipped with small-scale biochemical treatment devices inside, which use microorganisms to decompose organic matter in the sewage. After treatment, when the sewage meets the discharge standards, it can be directly discharged to designated locations in the natural environment. However, this method has relatively high costs because it requires specialized biochemical treatment devices, and it is necessary to ensure the activity of the microorganisms and the treatment effect, imposing high requirements on equipment maintenance and management.

Packaged storage is suitable for areas with a large flow of people but where frequent cleaning is inconvenient, such as large event venues. In this method, feces are compressed into blocks and stored in the toilet tank, while sewage is discharged through drainage pipes. This approach can reduce the frequency of cleaning, but the fecal blocks in the toilet tank need to be cleaned regularly.

Vacuum collection and storage is suitable for locations with a high density of people and strict hygiene requirements, such as airports and high-speed rail stations. It uses a vacuum pump to quickly collect sewage and feces into storage tanks, enabling efficient collection and treatment of sewage and ensuring a hygienic environment at the location. However, the equipment costs and operating costs are relatively high.