How to Flush Feces in Mobile Toilets

The methods for flushing feces in mobile toilets vary depending on the type, including water-flush and waterless suction types, recirculating water-flush types, foam-sealing types, microbial types, dry-packing types, and vacuum-suction types (for vehicle-mounted mobile toilets).

1. Water-flush and Waterless Suction Types: Water-flush mobile toilets are equipped with a water tank. After use, the tank flushes the feces into a sewage tank at the bottom. Due to the limited capacity of the sewage tank, suction equipment is required periodically to remove the feces for treatment. Waterless suction types, on the other hand, do not have a flushing mechanism; the excreta falls directly into the sewage tank, which also requires frequent suction to prevent overflow and odor.
2. Recirculating Water-flush Types: These mobile toilets use advanced biofilm technology to treat fecal sewage through aerobic and anaerobic processes. During treatment, specific microbial strains are added to accelerate the decomposition of feces. The treated water is purified and can be recirculated for flushing, significantly conserving water resources and making them suitable for use in water-scarce areas or places with high environmental protection requirements.
3. Foam-sealing Types: These toilets use foam generated from a foaming liquid mixture to cover the toilet bowl, replacing the conventional flushing method. The foam is delivered to a foam activator via compressed air and evenly covers the inside of the toilet bowl, forming a seal that prevents odor from escaping. This method not only eliminates odors but also maximizes water conservation since it does not require large amounts of water for flushing.
4. Microbial Types: These toilets use a solid-liquid separation device to treat excreta. Feces are decomposed by microbial bacteria with a degradation rate of up to 99%. Urine is filtered and enters a treatment system, where it undergoes a series of processes to form reclaimed water, which is then used to flush the urinal. This achieves the recycling of water resources.
5. Dry-packing Types: These toilets do not have a water-flushing mechanism; excreta is collected in biodegradable plastic bags. After each use, the system automatically replaces the plastic bag with a new one, sealing the excreta for packaging. Finally, these packaged excreta can be disposed of collectively, such as through landfilling or composting.
6. Vacuum-suction Types (Vehicle-mounted Mobile Toilets): These toilets primarily use the negative pressure generated by a vacuum pump to quickly suck excreta into a collection tank. This method conserves water and facilitates transportation and treatment, making it particularly suitable for vehicle-mounted or mobile scenarios, such as large events or construction sites.