Principle of Mobile Public Toilets
The principles of mobile public toilets vary depending on their types, which mainly include waterless flushing, water flushing, ecological, recirculating water flushing, and dry packing types. Details are as follows:
Waterless flushing mobile toilets do not require water for flushing and mainly rely on biodegradation or physical adsorption to treat feces. For example, when using biodegradation technology, special microbial inoculants are added to the toilet. These inoculants can decompose feces into carbon dioxide and water, reducing fecal volume and effectively eliminating odors. Additionally, some energy-saving waterless flushing toilets adopt double-layer waterproof roofs and galvanized steel structures to extend service life and enhance energy efficiency.
The principle of water flushing mobile toilets is similar to that of traditional toilets, requiring a connection to a water source and sewage pipeline. They use the impact force of water to flush feces into the sewage system and require regular cleaning of the sewage tank during use. Some mobile eco-friendly public toilets achieve a flushing effect of only 0.46 liters per person through optimized designs, such as automatically collecting hand-washing water and adding special agents, significantly reducing water consumption.
The core principle of ecological mobile toilets is to use microorganisms to decompose feces and convert them into organic fertilizers. This process enables resource recycling, reducing environmental pollution and providing fertilizers for agriculture or greening, aligning with the concept of sustainable development.
Recirculating water flushing mobile public toilets are equipped with intermittent aerobic and anaerobic treatment devices and add biological strains. They accelerate fecal decomposition through biofilm technology, and the treated water can be recycled for flushing, forming a closed-loop system. This design significantly reduces water consumption and the environmental impact of sewage discharge.
Dry packing mobile public toilets do not have water flushing devices, and feces are collected in biodegradable plastic bags. After use, the system automatically replaces the bag with a new one and collects the filled bags for centralized treatment. This design is suitable for scenarios with water scarcity or where it is impossible to connect to sewage pipelines, offering simple operation and high environmental friendliness.
