Lanzhou Mobile Ecological Toilet
The Lanzhou mobile ecological toilet is a water-saving and environmentally friendly sanitation facility designed for dynamic urban areas, featuring rapid deployment, resource recycling, and adaptability to extreme environments.
Technical Principles and Resource Recycling
The core design philosophy of the Lanzhou mobile ecological toilet is to break away from traditional municipal water supply and drainage systems, achieving efficient resource recycling through technological means. Its flushing system employs negative pressure or vacuum technology, reducing water consumption per flush to less than 1/10 of traditional models, with some products even achieving waterless collection. Solid metabolic waste is converted into soil conditioners through high-temperature composting or biological fermentation, while the liquid portion is recycled after purification via membrane filtration, evaporation concentration, or constructed wetland treatment. For example, a mobile toilet customized by Lanzhou Tengxiang Environmental Protection Equipment Co., Ltd. for the Yellow River Wetland Birdwatching Point integrates solar power supply and graywater recycling functions, achieving a daily water-saving rate of 42% per toilet.
Extreme Environment Adaptability
Tailored to Lanzhou's arid and semi-arid climate, the mobile ecological toilet has been optimized in terms of materials and structure. The outer shell uses weather-resistant, highly recyclable building materials, such as double-layer sandwich insulation panels, minimizing environmental impact during construction and dismantling. Internally, it is equipped with an electric tracing system to ensure normal operation in temperatures as low as -25°C, meeting outdoor winter usage requirements. For instance, the TC-800 series by Lanzhou Tongchuang Transportation Facilities Engineering Co., Ltd. operated continuously for 28 days during the 2025 winter marathon support mission, demonstrating its adaptability to extreme environments.
Intelligence and Mobility
Some products integrate IoT terminals, enabling real-time transmission of data such as usage frequency and overflow status, supporting remote monitoring and management. For example, the KTC-IoT series by Lanzhou Jintongchuang Environmental Protection Technology Co., Ltd. has been connected to the Qilihe District Smart Public Toilet Supervision Platform, enhancing operational efficiency. Its mobile design allows facilities to be relocated according to demand, avoiding resource idleness caused by fixed toilet construction. Among the 12 new suburban parks and 4 urban greenway projects built in Lanzhou in 2025, 9 have incorporated mobile toilets into their basic facilities, with procurement standards requiring each toilet to serve over 300 people daily and have a sewage storage capacity of ≥180L.
Localized Application and Industrial Characteristics
The technological iteration and service upgrades of the Lanzhou mobile ecological toilet reflect regional characteristics. Local enterprises meet diverse scenario demands through customized designs, such as for scenic spots and transportation nodes. Their products not only comply with environmental protection requirements but also reduce construction costs through modular design, providing a replicable solution for public sanitation facility construction in arid regions.
