Wenchang Foam-Sealing Mobile Toilet
The Wenchang foam-sealing mobile toilet is a public sanitation facility that achieves functional optimization by generating special foam. Its core principle is based on fluid mechanics and interfacial chemistry, offering significant advantages such as water conservation, odor control, and low maintenance.

Working Principle
The foaming device mixes a specific ratio of liquid and air to form a fine and uniform microbubble cluster. These bubbles maintain a stable form under the action of the formula, covering the surface of the excretory passage to form a flexible barrier. This barrier prevents the reverse diffusion of gas in the pipeline through physical isolation while altering the interface conditions between the liquid and air, reducing the amount of water used per flush by approximately 80% (compared to traditional water flushing methods). Additionally, the foam system has self-cleaning properties: when new foam is generated, the old foam carries impurities along the pipeline, achieving automatic cleaning.
Key Features
- Odor Control: The foam layer forms a physical isolation barrier that prevents gas from escaping from below the pipeline. Moreover, the foam itself has gas adsorption capabilities, providing significantly better odor control than traditional methods.
- Low Blockage Probability: The foam has better fluidity than solid substances, and the continuously generated new foam exerts a pushing and cleaning effect on the pipeline. Under proper use, the probability of blockage is lower than that of traditional water flushing systems.
- Simple Maintenance: The system structure includes a foaming liquid storage tank, an air pump, a mixing generator, and a control module. Daily maintenance only requires regular replenishment of the foaming raw liquid and inspection of the air pump status. A single system can operate continuously for thousands of times before requiring material replenishment.
- Energy Efficiency and Economy: Water conservation reduces energy consumption for water supply treatment and decreases the total amount of waste, thereby alleviating the burden of subsequent treatment. Although the initial investment is slightly higher, the long-term savings on water bills and sewage treatment costs can offset the difference within a few months.
Usage Precautions
- The quality of the foaming liquid directly affects system performance, so it is essential to choose products that comply with technical specifications.
- The control system should be calibrated regularly to ensure the optimal mixing ratio of liquid and air.
- In low-temperature environments, anti-freezing measures should be taken to avoid equipment damage.
Application Status
In the Wenchang mobile toilet rental market, foam-sealing products have gradually become popular. For example, the best-selling H6 model provided by Nanjing Yibingsi Environmental Protection Technology Development Co., Ltd. supports both rental and sales, offering an efficient solution for upgrading public sanitation facilities.




