Lhasa Movable Environmental Protection Toilet

The Lhasa movable environmental protection toilet is an environmentally friendly facility designed for the unique geographical and climatic conditions of the plateau. It features efficient waste treatment, strong material weather resistance, water resource recycling, and self-sufficiency in energy, making it suitable for various scenarios.

1. Waste Treatment System
In Lhasa, with low air pressure and large temperature differences, conventional gravity sewage discharge is prone to flow rate changes or air blockages due to air pressure differences. Specialized movable toilets adopt pressure-assisted or vacuum suction systems, achieving rapid and directional collection of waste through active pressurization, avoiding retention and freezing risks. Sealing performance is crucial to prevent odor leakage caused by air pressure changes and ensure environmental hygiene.

2. Material Weather Resistance Design
The strong ultraviolet radiation and large temperature differences (up to 20℃ daily) on the plateau impose stringent requirements on materials:

• Polymer materials: High proportions of ultraviolet stabilizers need to be added to delay embrittlement and discoloration;
• Metal components: They need to match the coefficients of thermal expansion and contraction and adopt anti-corrosion coating processes (such as for hinges and locks) to ensure facility reliability.

3. Water Resource Utilization and Anti-Freezing Technology
Water resources are scarce in Lhasa, and winters are cold. Movable toilets reduce freshwater consumption through two approaches:

• Waterless/micro-water flushing: Using foam sealing or biodegradable film packaging technology;
• Water circulation system: Integrating small-scale water treatment units to filter and disinfect liquids for recycling in flushing.
  All water lines (water storage tanks and pipes) need to be equipped with electric tracing or low-temperature flexible materials and wrapped with insulation layers to prevent freezing.

4. Terminal Waste Treatment
In remote or ecologically sensitive areas, a transfer + treatment approach is adopted:

• Solid waste is concentrated and transferred to treatment stations or decomposed using on-board composting devices with mesophilic microorganisms to produce humus for greening (non-edible crops). Precise control of the carbon-nitrogen ratio, humidity, and temperature is required.

5. Energy Supply Solutions
Due to inconvenient power access on the plateau, solar photovoltaic panels have become the mainstream energy source, requiring optimized installation based on solar radiation angles. The energy storage system selects low-temperature-resistant batteries and is equipped with battery management modules to cope with the challenges of shortened winter daylight hours and ensure basic functions such as lighting and ventilation.

6. Market Supply and Customization Services
The Lhasa market offers two mainstream products:

• Outdoor finished movable public toilets: Priced at 1200 yuan per unit, with a 5-day delivery time, supporting customization of materials, specifications, and colors. They are equipped with squat toilets and washbasins and are suitable for various fields;
• Yibings Environmental Protection Temporary Public Toilets: Priced from 3260 yuan, available for purchase in quantities of one or more. They can be customized in color and size, are enclosed and odorless, and are suitable for temporary scenarios such as parks and construction sites.