Principle of Simple Mobile Toilets

The principles of simple mobile toilets are divided into two categories based on type: flush-type and non-flush-type, with both focusing on waste treatment and sanitation.

Flush-type mobile toilets rely on a clean water circulation system. Their main structure includes a clean water tank and a hand-washing tank, with the clean water tank typically located at the front right and the hand-washing tank at the left. When in use, users first open the valve to fill the clean water tank, ensuring an adequate water supply. During flushing, stepping on the pedal triggers the water outlet valve, and clean water flows through the pipes to flush the inner walls of the toilet bowl, carrying waste into the bottom waste storage tank or directly connecting to the municipal sewage network. This type of toilet requires regular replenishment of clean water and cleaning of the waste storage tank, making it suitable for scenarios with a stable water supply. Its principle is similar to that of traditional fixed toilets, but it achieves mobility through modular design.

Non-flush-type mobile toilets, on the other hand, use alternative technologies to water flushing for waste treatment. Common types include:

1. Mechanical Packaging Type: This uses biodegradable plastic bags as waste containers. After the user defecates, a mechanical device automatically seals the plastic bag and pulls it down into the waste storage tank, preventing waste exposure and odor diffusion. This method does not require a water source but requires regular replacement of the plastic bags.
2. Microbial Degradation Type: This utilizes aerobic microorganisms to decompose organic matter, converting waste into carbon dioxide and water through a high-temperature fermentation process while killing pathogens. This technology requires ventilation and temperature control systems to maintain microbial activity and is suitable for long-term use scenarios.
3. Foam Sealing Type: This uses a foaming device to mix foaming liquid with air, forming a dense foam layer that covers the toilet bowl opening. Excrement slides into the lower pipe due to gravity, while the foam simultaneously suppresses odor emission. This method is water-saving and hygienic but requires regular replenishment of the foaming liquid.
4. Vacuum Suction Type: This uses a vacuum pump to create negative pressure in the pipes, instantly sucking waste into the treatment tank, similar to the principle of airplane toilets. Its advantages include strong flushing power and low water consumption, but it requires electrical support for the vacuum system to operate.
5. Chemical Agent Type: This adds chemical agents containing disinfectants and decomposing enzymes to the waste storage tank, decomposing excrement and neutralizing odors through chemical reactions. This method is simple to operate but requires regular cleaning of the waste storage tank and replenishment of the agents.

Non-flush-type toilets comply with the GB/T18092-2000 standard, with a water-saving rate exceeding 90%. They are particularly suitable for scenarios with water scarcity, no sewer systems, or temporary events, and their technological diversity can meet different environmental needs.