Beijing Mobile Foam Toilet
The Beijing mobile foam toilet, also known as the foam-flush mobile toilet, is an environmentally friendly mobile toilet that uses fine foam instead of water for flushing.
Working Principle
The core components of a foam-flush mobile toilet include a foam pump, a mixing chamber, a liquid storage tank, and a control circuit. After the user leaves, a sensor automatically triggers the foam system, forming a dense layer of foam in the toilet bowl that completely covers the waste and directs it into a waste storage tank. The entire process requires no manual contact, and each use consumes only 0.2 - 0.3 liters of water. Additionally, there is a physical-chemical-biological composite system of 'foam sealing and microbial synergistic treatment'. The foaming device uses a micro air pump to vigorously agitate a proportionally mixed surfactant with a small amount of water, generating dense micron-sized foam that wraps around feces to form a sealed barrier, blocking the spread of odors and pathogens. After foam collection, a staged treatment model of 'foam collection - solid-liquid separation - microbial degradation' is employed. The liquid portion can be recycled for the next foaming cycle after microbial degradation, while the solid residue is reduced in volume after undergoing a drying-compression process.
Technical Features
Foam Stability: Beijing experiences distinct seasons, with hot and humid summers and cold and dry winters. High-quality products use variable-frequency air pumps that automatically adjust the air volume based on ambient temperature, ensuring uniform and fine foam within the range of -15°C to 45°C. The toilet body adopts a double-layer structure with a polyurethane insulation layer in between to prevent freezing in winter. Air Purification: To cope with smoggy weather, the toilet's exhaust vent is equipped with a high-efficiency HEPA filter to prevent outdoor air pollution from entering the interior. Smart Control: The smart control module supports remote fault diagnosis, facilitating centralized management during large-scale events.
Application Scenarios
In Beijing's densely populated urban areas with frequent activities, from the Olympic Park to the vicinity of Tiananmen Square, these toilets have become a standard feature of temporary sanitation services. With the accelerated pace of urban renewal in Beijing, many old residential areas require temporary sanitation facilities during renovation periods, and foam-flush toilets have become the preferred choice due to their lack of reliance on a sewer network.
