Where Does the Water from Mobile Toilets Go

The water discharge methods for mobile toilets are diverse, and the specific destination depends on the type of toilet. Common discharge options include septic tanks, municipal sewage networks, collection containers, sewage tanks, or recycling after treatment.

1. Conventional Flush Type: This type of mobile toilet requires connection to water supply and drainage pipes, using manual or automatic sensing for waste disposal. Its sewage is discharged into septic tanks or municipal sewage networks. Septic tanks can perform preliminary treatment of sewage, breaking down organic matter, while municipal sewage networks transport the sewage to sewage treatment plants for further processing. This type is suitable for various water-rich environments, such as some public places in cities.
2. Vacuum Sewage System: It utilizes negative pressure principles, using a vacuum pump to suck sewage and waste into a collection container. When the sewage in the public toilet reaches a preset water level, the vacuum pump automatically starts for waste disposal, transferring the sewage in the collection container to an appropriate treatment location. This system is commonly found in places with high hygiene requirements and corresponding equipment conditions.
3. Water Storage Sewage System: Waste is discharged into a storage tank through flushing. When the sewage reaches a preset water level, the flushing device automatically starts to flush the waste into the storage tank. When the storage tank is full, it needs to be cleaned and replaced. This system is generally suitable for places with sufficient water sources and easy cleaning, such as temporary sites for some large-scale events.
4. Flush and Non-Flush Suction Type: Flush-type mobile toilets have flushing devices, with water tanks usually placed on top of the toilet and sewage tanks at the bottom. Non-flush-type mobile toilets do not have flushing devices, and the sewage tank at the bottom directly receives waste. The sewage tanks of these two types have relatively small capacities and need to be suctioned and transferred in a timely manner when reaching a specified number of users.
5. Recirculating Flush Type: Equipped with intermittent aerobic and anaerobic treatment devices for fecal sewage, adding biological strains and using biofilm technology to accelerate the fermentation and decomposition of fecal sewage. Then, through filtration devices, the treated fecal sewage is recycled for flushing toilet fixtures, achieving water resource recycling. This type is suitable for places with high requirements for water conservation.
6. Self-Priming Flush Type (Used in High-Speed Rail): The base rear can be connected to a sewage pipe for direct sewage discharge or into a septic tank. It can also be equipped with a fiberglass toilet bowl. This type is suitable for places with water supply and drainage facilities, mature drainage systems, or where it is inconvenient to build fixed toilets, such as residential complexes and park attractions.