Mobile Toilet Water Inlet and Sewage Discharge

There are various water inlet and sewage discharge methods for mobile toilets, commonly including direct discharge and fecal tank, flushing type, vacuum sewage system, water-storage sewage system, and biodegradation type.

Direct discharge and fecal tank are relatively common configurations. Mobile toilets are equipped with squatting pans, washbasins, and exhaust fans, among other facilities, with the main sewage discharge methods being direct discharge and fecal tank. The direct discharge method usually involves discharging sewage directly into an appropriate external environment or treatment facility; the fecal tank collects feces and other waste in a specific tank, which is then cleaned up when full.

The flushing type is the most common treatment method, requiring connection to water supply and drainage pipes. Sewage is discharged into a septic tank or municipal sewer network through manual or automatic sensing. This sewage discharge method is suitable for various water-rich environments, has relatively low construction costs, and is widely used in public places in many cities and rural areas.

The vacuum sewage system utilizes the principle of negative pressure to suck sewage and waste into a collection container through a vacuum pump. When the sewage in the public toilet reaches a preset water level, the vacuum pump automatically starts, quickly sucking the sewage and waste into the collection container. This method is highly efficient and uses very little water, effectively preventing sewage leakage and odor diffusion, and is commonly used in places with high environmental requirements and limited water usage.

The water-storage sewage system discharges waste into a water storage tank through flushing. When the sewage in the public toilet reaches a preset water level, the flushing device automatically starts, flushing the waste into the water storage tank. When the water storage tank is full, it needs to be cleaned and replaced, suitable for places with sufficient water sources and easy cleaning, such as temporary mobile toilets at some large-scale event venues.

Biodegradation is an environmentally friendly technology used in some mobile public toilets, converting organic matter in sewage into harmless substances before discharge. This method can effectively reduce sewage pollution to the environment, aligning with the concept of sustainable development, and is relatively common in environmentally conscious scenic spots or special venues.