Mobile Public Toilet Foam

The foam-sealed toilet in mobile public toilets is a new type of energy-saving and environmentally friendly toilet that uses low-water-content foam for fecal flushing and odor blocking. Its core principles and characteristics are as follows:

1. Core Working Principle
The foam-sealed toilet generates low-water-content foam by mixing a foaming agent with water through a foaming device. The foam has high lubricity and sealing properties, replacing the traditional water-flushing method: on the one hand, the foam layer covers the drainage outlet to form a physical seal, effectively blocking the diffusion of odors; on the other hand, the lubricating effect of the foam reduces the friction between feces and the pipes, assisting the feces in smoothly sliding into the fecal storage tank. Its foaming system uses the U-shaped tube principle to stabilize the amount of foaming liquid and generates a long-lasting foam layer in conjunction with compressed air to ensure a continuous sealing effect.

2. Water and Energy Conservation and Environmental Advantages
This technology significantly reduces resource consumption: the water consumption per person is only about 0.04 liters, and the daily electricity consumption does not exceed 0.2 degrees. In 2024, a utility model patent further optimized the technology by proposing a water-free foaming technology that integrates a fecal biochemical processor. Through microbial decomposition of feces and the construction of a circulating water system, the water-saving rate reaches over 99%, achieving an almost zero-emission environmental goal.

3. Structural Design and Adaptability
The equipment uses lightweight building materials (such as steel frames and full aluminum materials) for easy mobile installation, making it suitable for places without drainage facilities, such as scenic spots and construction sites. It has a wide operating temperature range and can operate stably in extreme environments from -40°C to 50°C, meeting the needs of different climatic conditions. Some models are also equipped with indicator lights and digital smart hardware to enhance usability and management efficiency.

4. Technological Iteration and Functional Expansion
Early foam-sealed toilets relied on the mixing of foaming liquid and water, while the latest patented technology achieves harmless treatment of feces through microbial decomposition and recycles water resources to form a closed-loop ecosystem. This improvement not only reduces the use of chemical foaming agents but also lowers post-maintenance costs, further strengthening its environmental attributes.

In summary, the foam-sealed toilet stands out in terms of water conservation, odor prevention, and mobility through innovative foaming technology and ecological design, representing a significant technological breakthrough in the field of public toilets.