Qinghai Dry Toilet Mobile Toilet

Mobile toilets have been widely applied in Qinghai's dry toilet renovation projects, meeting the special needs of high-altitude and water-scarce regions through technological innovation and service models. The main practices include ecological technology toilets, prefabricated mobile public toilets, and rental services.

1. Plateau Ecological Toilets: Photovoltaic Micro-Flush Technology Breaks Through Water Scarcity Challenges
State Grid Zhejiang Electric Power, in collaboration with the Tsinghua University Wuxi Applied Technology Research Institute team, developed the "Plateau Ecological Toilet" in Qinghai's high-altitude and water-scarce regions. This technology employs a photovoltaic micro-flush resource utilization system, using solar power to drive minimal water flushing and combining microbial degradation technology to convert excreta into organic fertilizer, achieving water resource recycling. This design breaks through the limitations of traditional dry toilets that rely heavily on flushing water and resolves the issue of water pipe freezing in high-altitude areas due to low temperatures, making it suitable for pastoral areas, remote villages, and other scenarios without centralized water supply networks. For example, in Yushu Prefecture, located at an altitude of over 4,000 meters, such toilets have been operating stably for more than three years, requiring no manual ice removal in winter and achieving a fecal treatment efficiency of over 90%.

2. Prefabricated Mobile Public Toilets: Modular Design Adapts to Diverse Scenarios
The factory-prefabricated mobile public toilets promoted in Qinghai are produced using standardized modules and can be used immediately after connecting to water and electricity upon installation. Their core advantages include:

• Comprehensive functional zoning: Equipped with separate male and female toilet stalls, barrier-free compartments, and management rooms, with some models featuring universal toilets to meet the special needs of families and individuals with disabilities;
• Enhanced environmental adaptability: The outer shell is made of cold-resistant and heat-insulating materials, with electric heating devices installed inside to withstand temperatures as low as -30°C;
• Rapid deployment capability: Taking Qinghai Lake Scenic Area as an example, a single public toilet can be transported and put into use in just 2 hours, supporting peak tourist flows during the tourist season.
  Such toilets have covered 4A-rated and above scenic spots, transportation hubs, and large construction sites across the province, serving over 50,000 people daily.

3. Mobile Toilet Rental Services: Flexibly Responding to Temporary Needs
For short-term events such as marathons and music festivals, Qinghai offers full-type mobile toilet rentals, covering epidemic prevention-specific models, portable single toilets, and large trailer-mounted toilet clusters. Technical features include:

• Waterless biological degradation: By adding bacterial strains to decompose feces and urine, a single toilet stall can be used continuously for 15 days without the need for removal;
• Packaged treatment: Using biodegradable films to encapsulate excreta, which are then transported and treated uniformly after the event, avoiding secondary pollution;
• Intelligent monitoring systems: Some high-end models are equipped with usage frequency statistics, odor monitoring, and other functions to enable dynamic management.
  During the 2023 Tour of Qinghai Lake International Road Cycling Race, rental services covered 12 race stages, with a cumulative deployment of over 200 toilets, ensuring the event's sanitation needs.

Technical Adaptability Summary: Qinghai's mobile toilets effectively address the challenges of fecal treatment, energy supply, and rapid deployment in high-altitude and water-scarce regions through three core technological paths: micro-flushing, biological degradation, and modularization, providing a replicable ecological solution for dry toilet renovation.