How to Remove Feces from Mobile Toilets
The methods for removing feces from mobile toilets vary depending on the type of toilet, with common methods as follows:
Flush and Non-flush Suction Types: These mobile toilets are typically equipped with vacuum sewage pumps or sealed fecal suction trucks. Their working principle involves using pipes to suck the excreta from the toilet into the equipment, which is then transported to specialized fecal treatment facilities for processing. Due to the relatively small capacity of the sewage tanks in these two types of mobile toilets, suction operations need to be carried out promptly when the number of users reaches a specified level. If not handled in a timely manner, the sewage tanks are prone to overflow, which not only affects the normal use of the toilet but may also cause pollution to the surrounding environment. For example, at large-scale event venues with a high number of users, staff need to closely monitor the usage of the sewage tanks and perform suction operations at specified intervals.
Dry Packing Type: In this type of mobile toilet, the excreta is collected by biodegradable plastic bags placed beneath the sanitary fixtures. Each time a person uses the toilet, the system automatically replaces the plastic bag with a new one, ensuring that each instance of excreta is collected independently. When the plastic bags are used up, staff simply collect the bags filled with excreta and transport them to specialized treatment plants for disposal. This method is relatively simple to operate, and the biodegradable nature of the plastic bags is also beneficial for environmental protection. Dry packing type mobile toilets are commonly found in remote areas or temporary construction sites.
Microbial Degradation Type: In this type of mobile toilet, feces are separated and enter a fermentation tank. Inside the tank, a screw propeller rotates to thoroughly mix the initial ingredients, sawdust, biological strains, and feces. Under the action of the microbial strains, the feces gradually decompose. After a period of time, a small amount of solid residue settles at the bottom of the container, which can be used as fertilizer. Staff only need to regularly clean up this solid residue. Microbial degradation type mobile toilets have advantages such as being environmentally friendly and energy-saving, making them suitable for places with high environmental requirements.
