Foam Water-Saving Mobile Toilet

The foam water-saving mobile toilet is a mobile toilet that utilizes foam instead of flushing water to achieve efficient water conservation, environmental protection, and adaptability to various environments. Its core principles, performance characteristics, and practical application value are as follows:

1. Composition and Working Principle
This toilet is primarily composed of a stainless steel squat toilet, a control system, and a foam generation system. Its core devices include a foaming cylinder, a liquid storage tank, a liquid level balancing tank, etc. Foam is generated by mixing a foaming agent with water, utilizing the lubricity of the foam to facilitate the sliding of excrement and simultaneously blocking the sewage outlet with foam to eliminate odors at the source and prevent splashing. The system employs the U-shaped tube principle to stabilize the amount of foaming liquid and generates a long-lasting foam layer with compressed air to ensure continuous blocking effects. Some devices integrate a fecal biochemical processor that decomposes feces through microorganisms and constructs a circulating water system to further reduce water consumption.

2. Water Conservation and Environmental Performance
The water consumption per person is only about 0.04 liters, saving 80%-96% of water compared to traditional water-flushing toilets. The waterless foaming technology proposed in a utility model patent in 2024 can even increase the water-saving rate to over 99%. After treatment, excrement can be converted into organic fertilizer, achieving resource utilization and reducing environmental pollution. The increase in the volume of emissions is relatively small, reducing the frequency of clearance and related costs, which aligns with the concept of green environmental protection.

3. Environmental Adaptability and Practicality
The equipment is suitable for environments without water or electricity and operates within a wide temperature range (-40°C to 50°C), making it ideal for scenic spots, construction sites, and other locations without drainage facilities. Its lightweight construction materials facilitate easy movement and installation, while the microcomputer control system can automatically adjust foaming, lighting, and ventilation operations, resulting in low maintenance costs and significant odor control effects. The dense foam layer effectively blocks odors and avoids the splashing issues associated with traditional toilets, enhancing the user experience.

4. Technological Innovation and Case Applications
This technology has undergone multiple iterations: Zhao Yijun applied for a related patent in 2005, Yunnan Jiagu Environmental Protection Co., Ltd. improved the technological system in 2017, and in 2024, it integrated waterless foaming and fecal biochemical treatment functions. In practical applications, the design by Kunming Huiyun Nightlight Engineering Co., Ltd. won an Excellent Case Award in the First National Tourism Toilet Technological Innovation Competition, and the 'Foam-Type Water-Saving Ecological and Environmentally Friendly Odorless Toilet' in Nanhu Park, Qingxiu District, Nanning, has become a typical demonstration, verifying its technological maturity and promotional value.