Feasibility Study on Mobile Public Toilets
The feasibility study on mobile public toilets should be conducted from six dimensions: technology, economy, application scenarios, environmental benefits, policy drivers, and risks and challenges. Mobile public toilets have advantages such as modular deployment, water and energy conservation, and rapid market growth, but attention should be paid to operation and maintenance costs and site selection standards.
Technical Feasibility
Mobile public toilets adopt a modular design, supporting rapid transportation and installation without damaging the original site. Their core technologies include microbial degradation and foam sealing technologies: the former decomposes feces into carbon dioxide, water, and minerals through specific bacterial communities, achieving 'zero emissions'; the latter uses surface tension to cover excreta, requiring only 0.2 liters of water per flush (compared to 6 liters for traditional flush toilets), and combined with three-stage filtration (sedimentation, activated carbon adsorption, and ultraviolet disinfection), it achieves a water recycling rate of over 95%. The energy system integrates solar photovoltaic panels and energy storage batteries, and the intelligent monitoring system collects real-time data on usage frequency and sanitation conditions through sensors to provide a basis for operation and maintenance scheduling.
Economic Feasibility
A life-cycle cost assessment shows that although mobile public toilets incur transportation and reassembly costs, they save on long-term land occupation, infrastructure construction, and idle maintenance costs associated with traditional public toilets. For example, during peak seasons, suburban parks need to add 30 fixed squatting positions, with an idle rate of 70% during off-peak seasons, while renting mobile public toilets allows for dynamic adjustment of quantities to avoid resource redundancy. In 2024, the market size of eco-friendly mobile toilets in China reached 1.87 billion yuan, a year-on-year increase of 14.3%, with water-saving types accounting for 58%, waterless types accounting for 35%, and adoption rates of microbial degradation and foam sealing technologies at 46% and 29%, respectively.
Application Scenarios and Demand Matching
They are suitable for temporary needs (such as large-scale events and seasonal scenic spots) and long-term planning needs (such as remote areas and areas without sewer networks). Urban public spaces can achieve a 'mobile infrastructure network' through rental allocation, for example, meeting differentiated demands in commercial and entertainment areas at different times.
Environmental Benefits
Microbial degradation technology reduces the volume of waste to less than 15% of its original state, and foam sealing technology significantly reduces flush water volume. Three-stage filtration and reclaimed water reuse devices reduce water consumption. The solar power supply system enables off-grid operation, reducing dependence on traditional energy sources.
Policy and Market Drivers
Policies such as the 'Toilet Revolution' drive industry demand growth, with significant growth in central and western China. Leading enterprises enhance market concentration through customized solutions, while small and medium-sized enterprises focus on niche areas (such as products suitable for high-altitude regions) to establish differentiated advantages.
Risks and Challenges
Operation and maintenance costs require attention to the replacement cycle of filtration media (such as activated carbon every 3,000 cycles or when odor exceeds standards) and the lifespan of ultraviolet lamps (9,000 hours) to avoid substandard reclaimed water quality. Site selection should avoid pollution sources (such as being at least 30 meters from water sources) and low-lying flood-prone areas.
