Qinghai Solar-Powered Mobile Toilet

The Qinghai solar-powered mobile toilet is an innovative public facility that integrates solar technology with eco-friendly waste treatment concepts, featuring water conservation, energy efficiency, mobility, and resource recycling.

Core Functional Units

• Collection and Isolation Unit: Utilizes vacuum or micro-flushing technology to achieve physical separation and sealed storage of waste. This technology significantly reduces water consumption while effectively preventing odor diffusion, addressing the issue of unpleasant smells in traditional toilets and enhancing the user experience.
• Biological Treatment Unit: Contains psychrophilic microbial communities capable of decomposing organic matter in low-temperature environments. A heating and insulation device maintains microbial activity, ensuring stable operation of the treatment process and adapting to the large temperature variations between day and night in high-altitude regions.
• Terminal Output Unit: Transforms treated residues into two types of products: solid residues can be used as soil amendment materials for scenic area landscaping; liquid residues, after disinfection, meet irrigation reuse standards, achieving water resource recycling.

Mobility Design

• Modular Structure: The entire toilet adopts a modular design, with each functional unit independently detachable. It can be quickly relocated using standard transportation vehicles (such as trucks), adapting to seasonal adjustments in scenic area tourism routes.
• Detachable Treatment System: When a specific functional module (such as the biological treatment unit) requires maintenance or upgrading, it can be replaced individually without affecting the operation of other modules, reducing operational and maintenance costs and extending equipment lifespan.

Energy Supply and Thermal Management

• Hybrid Energy Supply Mode: Solar photovoltaic panels serve as the primary power source, meeting daily lighting and control system electricity needs; auxiliary configurations include small wind turbines or fuel cells to cope with continuous rainy weather, ensuring stable energy supply.
• Phase Change Material Heat Storage: The thermal management system utilizes phase change materials to store excess heat during the day and release it at night for insulation, maintaining the required temperature for the biological treatment unit and ensuring continuous treatment processes in low-temperature environments.

Typical Case

In June 2026, the nation's first high-altitude photovoltaic micro-flush resource-recycling ecological toilet was put into operation in Malayi Village, Maduo County, Guoluo Prefecture, Qinghai, and also covered Yangjiashan Village in Haidong City. This toilet achieves the goals of "using less water, generating electricity, and enabling recycling" through photovoltaic power supply, micro-flushing technology, and resource recycling, significantly reducing reliance on external energy sources and water consumption, and promoting green practices in waste emission and treatment processes.