Guoluo Mobile Toilet Design

The design of mobile toilets in Guoluo needs to incorporate specialized technical solutions tailored to the unique environmental conditions of high altitude, severe cold, permafrost, and limited transportation access, while focusing on core requirements.

I. Current Applicable Types and Design Features

1. Steel Structure Insulated Type: The main body uses double-layer galvanized steel plates with polyurethane foam insulation (thickness ≥ 80mm), effectively withstanding temperatures as low as -35°C. It is equipped with electric tracing pipes, freeze-resistant handwashing basins, and solar power supply interfaces to ensure normal operation in extremely cold environments. The unit dimensions are 2.0×2.4×2.8m, suitable for long-term high-altitude驻点 (stationary) scenarios such as pastoral areas and border outposts.
2. FRP (Fiberglass Reinforced Plastic) Integrated Type: Weighing approximately 800kg, it is corrosion-resistant and requires no welding, but has weaker insulation performance, necessitating the addition of an independent heating module (such as electric heating film or air-source heat pump). Its lightweight design facilitates transportation on the plateau and is suitable for short-term festivals or temporary construction sites, such as Naadam festivals and road repair sites.
3. Vacuum Micro-Water Type: Utilizing vacuum negative pressure technology, it controls single-use water consumption to below 0.5L, paired with a biological agent treatment tank or vacuum sewage collection tank, enabling 7–15 days of maintenance-free operation. This type significantly reduces the frequency of sewage transportation and the risk of freezing blockages, making it particularly suitable for areas without sewer networks, such as remote pastoral areas or ecological reserves.

II. Core Directions for Procurement Design in 2026

1. Reliability in Severe Cold Conditions: It must pass low-temperature material tests (such as -40°C anti-brittle fracture tests) and incorporate redundant design for electric tracing systems to ensure fault-free continuous operation at -35°C.
2. Modularity and Transportation Efficiency: Adopt standardized modular design (such as detachable wall panels and integrated piping) to shorten on-site assembly time to within 4 hours and adapt to small plateau transportation vehicles (such as pickup trucks or animal-drawn carts).
3. Energy and Sewage Compatibility: Integrate photovoltaic + energy storage systems to support off-grid power supply; prioritize the use of biodegradable or vacuum toilet technologies to reduce reliance on traditional septic tanks and lower construction difficulty in permafrost layers.
4. Localized Service Capability: Establish an after-sales network covering six counties including Jiuzhi and Maqin, equipped with plateau-specific maintenance tools and spare parts inventories, ensuring a 48-hour response to faults and regular training on equipment anti-freezing maintenance.

III. Technical Adaptation Recommendations
Given the decentralized energy characteristics in Guoluo, it is recommended that steel structure insulated toilets adopt a "photovoltaic + diesel generator" dual backup power supply; vacuum micro-water toilets can be paired with rapid biological agent decomposition technology to shorten the replacement cycle of sewage collection tanks. Additionally, all types must pass wind pressure resistance tests (≥ Grade 12) and incorporate snow accumulation prevention designs to cope with extreme plateau weather conditions.