Mobile Toilet Foam

The foam-type mobile toilet is a portable sanitation facility that uses foam to block the sewage outlet of the toilet bowl. It forms a dense foam layer by mixing foaming liquid, water, and air, achieving water conservation, odor prevention, and splash reduction.

Working Principle

The core of the foam-type mobile toilet lies in thoroughly mixing the foaming liquid, water, and air through a gas-liquid mixing device to form a fine and stable foam layer inside the toilet bowl. This foam layer covers the surface of the excreta, creating a physical barrier that effectively isolates odors (such as ammonia and hydrogen sulfide) and reduces splashing during toilet flushing. Compared to traditional water-flush toilets, its flushing water consumption is significantly reduced, with some products even achieving micro-water or waterless flushing, greatly conserving water resources.

Structural Components

1. Toilet Body: Made of durable materials such as stainless steel or high-strength plastic to ensure structural stability and corrosion resistance.
2. Foaming Device: Includes a gas-liquid mixing pump, foam generator, and liquid storage tank, responsible for generating and delivering foam to the toilet bowl.
3. Control System: Monitors the foam level and sewage tank status through sensors, automatically adjusting the foaming amount for intelligent management.
4. Sewage Tank: Designed with a sealed structure to store excreta, requiring regular cleaning, suitable for scenarios without a fixed sewage pipe network.
5. Ventilation and Deodorization Components: Equipped with exhaust fans or activated carbon filtration devices to further control odor diffusion.

Technical Features

• Foam Stability: The foaming liquid must possess high strength, durability, and lubricity to prevent foam breakage, which could lead to excreta adhesion or odor leakage.
• Water Conservation Performance: The water consumption per flush can be reduced to 0.2-0.5 liters, only 1/10 to 1/20 of that of traditional toilets.
• Environmental Friendliness: The foaming liquid must be biodegradable to prevent corrosion of pipelines or environmental pollution.

Applicable Scenarios

Due to the lack of a need for a fixed sewage pipe network, foam-type mobile toilets are widely used in construction sites, outdoor events, music festivals, tourist attractions, temporary markets,野外施工 (field construction), and emergency relocation points, meeting the sanitation needs of highly mobile populations.

Operation and Maintenance

Regularly replenish the foaming liquid, check the air pump and pipeline sealing, clean toilet bowl residues, and monitor the sewage tank level to prevent overflow. Maintenance costs are low, but it is essential to ensure the quality of the foaming liquid to avoid equipment failures caused by inferior liquids.

Price Reference

Prices vary significantly among different manufacturers and models. For example, the stainless steel foam-type squatting toilet from Botou Sanlong Railway Vehicle Fittings Factory costs ¥6520.0, while a similar product from Beijing Anbangjie Technology Development Co., Ltd. costs ¥1786.0. Users can choose based on their budget and functional requirements.