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Rainwater Mobile Toilet

Admin September 20, 2026

A rainwater mobile toilet is a portable toilet facility that employs eco-friendly technologies to achieve water conservation and resource recycling. It encompasses various technical solutions, including waterless flushing, foam sealing, and water flushing, and features water conservation, environmental protection, and high mobility.

The core technical solutions of rainwater mobile toilets include three categories: 1. Waterless flushing: This method treats excreta through microbial degradation and physical separation technologies, eliminating the need for water flushing. It is suitable for scenarios with water scarcity or without water supply and drainage pipelines. Its advantage lies in zero water consumption, but it requires regular cleaning of the excreta container and has high requirements for the activity of microbial strains.

2. Foam sealing: This approach utilizes a foaming device to generate high-density foam that covers the surface of the toilet bowl, forming a seal to prevent odor diffusion while reducing the amount of water used for flushing. The surfactants in the foam lubricate the pipes, reducing the risk of excreta adhesion. This solution offers significant water-saving effects but requires regular replenishment of the foaming liquid, and the stability of the foam is greatly affected by temperature.

3. Water flushing: This method requires connection to water supply and drainage pipelines but achieves water conservation through a rainwater collection and filtration system and secondary toilet flushing technology using hand-washing water. Rainwater is initially filtered and stored in a water tank for toilet flushing, and hand-washing water can also be recycled after simple treatment. This solution is suitable for scenarios with rainwater collection conditions and a need to maintain traditional toilet flushing habits but relies on stable water supply and drainage infrastructure.

Taking Huajie Mobile Toilets as an example, their rainwater collection and water-saving toilet types have the following characteristics: High mobility: They adopt a modular design, allowing for quick disassembly, assembly, and transportation to different sites. They have served special scenarios such as the 101st floor of the Shanghai World Financial Center and the Olympic torch relay on Mount Everest. Energy conservation and environmental protection: Through rainwater collection and recycling technologies, they reduce reliance on municipal water supplies and decrease sewage discharge. Wide application: They provide temporary sanitation facility solutions for large-scale events such as the Beijing Olympics, Shanghai World Expo, and marathons in various locations, meeting usage demands under high pedestrian traffic densities.

Rainwater mobile toilets, through technological integration and innovation, ensure sanitation functions while achieving efficient water resource utilization, representing an important application direction of eco-friendly technologies in the field of public facilities.