Environmentally Friendly Biodegradable Mobile Toilet

An environmentally friendly biodegradable mobile toilet is a type of public toilet that utilizes microbial degradation technology to achieve harmless treatment of excreta. It features water conservation, mobility, and waterless flushing, making it suitable for various scenarios.

Technical Principles and Treatment Methods
This toilet employs solid-liquid separation technology to divide excreta into feces and urine for separate treatment. Feces are decomposed by microorganisms into carbon dioxide, water, and organic fertilizer, enabling resource utilization. Urine is treated to meet the standards for reclaimed water, which can be used for toilet flushing or green irrigation, forming a recycling system. Some models are equipped with intelligent temperature control systems that can operate at temperatures above 60℃, providing sterilization and disinfection functions to ensure hygienic and safe treatment processes.

Structural and Performance Advantages
The toilet body adopts a steel-frame cement composite structure, offering excellent thermal insulation and a service life of over 20 years, making it adaptable to cold and water-scarce environments. For example, the carbon-neutral public toilets deployed in Chengdu in 2024 feature steel-frame structures that can withstand temperatures as low as -28℃. The single-toilet construction cost of the technology used in Beijing Winter Olympics venues is 100,000 yuan lower than that of traditional water toilets, highlighting its cost-effectiveness and durability. Its water-saving characteristics are remarkable, with the Chengdu carbon-neutral public toilets saving over 3,000 tons of water annually, making them suitable for water-scarce regions.

Technical Types and Application Scenarios
Technical types include solar thermal-assisted, negative-pressure water-saving waterless, recirculating water, and foam-sealing types. The solar thermal-assisted type utilizes solar energy to provide power, reducing energy consumption. The negative-pressure water-saving waterless type reduces water usage through negative-pressure technology. The recirculating water type achieves closed-loop water utilization. The foam-sealing type covers excreta with foam to suppress odors. Trailer-mounted mobile environmentally friendly smart toilets can be moved anywhere and are equipped with microbial degradation systems in each squatting position, making them suitable for scenic spots, temporary event venues, and public areas.

Typical Cases and Environmental Benefits
The technology was adopted in 13 venues of the 2022 Beijing Winter Olympics, verifying its applicability in large-scale events. The deployment of carbon-neutral public toilets in Chengdu demonstrated their water-saving potential in urban public facilities. These toilets reduce sewage discharge from traditional water toilets, alleviating sewage treatment pressure. Additionally, they convert excreta into organic fertilizer, reducing the use of chemical fertilizers and contributing positively to environmental protection and resource recycling.