Mobile Washable Toilet

The cleaning methods for mobile toilets vary depending on their types, mainly divided into water-flush and non-water-flush categories. Some high-end models achieve efficient water resource recycling through integrated systems.

I. Cleaning Logic of Traditional Water-Flush Mobile Toilets
Conventional water-flush mobile toilets rely on external water supply, with a cleaning process similar to that of fixed toilets: After flushing, wastewater flows through pipes into storage tanks or directly into municipal sewage networks. If equipped with independent storage tanks, regular manual pumping and removal are required to prevent sewage overflow. The cleaning frequency of such toilets depends on the number of users and the capacity of the storage tanks. For example, high-traffic scenic spots may require daily removal, while temporary event venues can extend the interval to 2-3 days. The core cleaning costs lie in water consumption and removal service fees.

II. Cleaning Mechanism of Non-Water-Flush Mobile Toilets
Non-water-flush toilets primarily use dry packaging, solidifying feces with biodegradable plastic bags or chemical gels, eliminating the need for flushing. Cleaning involves simply replacing the sealed bags or adding solidifying agents, with easy operation and no sewage generation. For instance, the feces storage tanks of dry-packaging toilets are designed as detachable structures. When full, the tank is directly replaced with a new one, and the old one is handled by professional agencies. Such toilets are suitable for water-scarce areas or temporary emergency scenarios but require regular replenishment of consumables (such as plastic bags and solidifying agents), and odor control depends on sealing performance.

III. Closed-Loop Cleaning Innovation of Beijing Mobile Integrated Toilets
Beijing mobile integrated toilets adopt a microbial degradation + physical filtration dual system to achieve single-point closed-loop cleaning:

1. Anaerobic Reaction Chamber Treatment: After entering the sealed chamber, flush wastewater undergoes organic matter decomposition by specific bacteria under anaerobic conditions, converting solids into biogas and a small amount of sludge, with the liquid entering the next stage.
2. Ceramic Membrane Filtration: The liquid passes through a ceramic membrane with a pore size of less than 0.1 microns, retaining bacteria and suspended solids. The effluent water quality meets urban miscellaneous water standards and is directly used for the next flush.
3. Gray Water Recycling: Gray water from sinks is simply filtered and used for floor cleaning, further reducing water consumption.
4. Rainwater Supplementation System: Rainwater collected by roof gutters is disinfected with ultraviolet light and used as a backup flush water source, enhancing system self-sufficiency.

This system is completely independent of external sewage networks, extending the cleaning cycle to several months. It only requires regular replenishment of microbial agents and inspection of membrane component performance, significantly reducing operation and maintenance costs and environmental impact.