Circulating Water Mobile Toilet Information

A circulating water mobile toilet is an environmentally friendly mobile toilet that utilizes water circulation technology to achieve wastewater reuse through filtration and disinfection. It features water and energy conservation, convenience and hygiene, and flexible mobility. The following provides an introduction from three aspects: technical principles, application scenarios, and economic and social benefits:

Technical Types and Treatment Methods
The core of a circulating water mobile toilet lies in its water circulation system, which is mainly divided into two categories:

1. Preventive Pipe-Free Circulating Water Flushing Toilets: These toilets employ multiple technologies such as anaerobic treatment, aeration, membrane processes, ultraviolet and ozone sterilization to achieve permanent recycling of sewage. They boast a bacteria elimination rate of up to 99.9999% and can adapt to environments with temperatures ranging from 5 to 50°C, humidity levels from 20% to 100%, and atmospheric pressures from 76 to 101 kPa, meeting the international standard ISO:30500.
2. Intelligent Water-Saving Circulating Water Toilets: These toilets automatically collect hand-washing water and add a special agent to achieve a low water consumption of only 0.46 liters per use. The system is equipped with intermittent aerobic and anaerobic treatment devices, and biological strains are added to accelerate the decomposition of organic matter. The treated water is then recycled for flushing, forming a closed loop.

Application Scenarios and Cases
This technology has been widely applied in water-scarce or temporary locations both domestically and internationally:

• Domestic: Projects such as the toilet renovation project across Taizhou City, Jiangsu Hengtang People's Hospital, Yunnan Shangri-La Tourist Center, and Gansu Tianshui Expressway Service Area have all adopted such toilets. In the Lanzhou Yellow River Scenic Area, a significant proportion of the mobile toilets put into use in 2023 are of the circulating water flushing type.
• International: Scenarios such as Tholetshga Primary School in Johannesburg, South Africa, Xinfeng Golf Course in Malaysia, and Dubai Aviation Al Maktoum International Airport have all applied this technology, demonstrating its ability to adapt to different climates and usage requirements.

Economic and Social Benefits

1. Cost Advantages: The investment for a single set of equipment is approximately $30,000 to $60,000, and bulk deployment can further optimize costs. The annual operation and maintenance expenses are only RMB 5,000 to 7,000. Calculated over a 10-year period, it can save RMB 3.6 million in water fees, with the electricity cost for a single flush being only 2 to 5 cents. Deployment can be completed in 2 to 3 days, and it supports remote monitoring via mobile phones.
2. Additional Benefits: It provides public service advertising spaces, a health big data accumulation platform, and citizen interaction functions. In terms of epidemic prevention, it achieves a 99.99% local bacteria elimination rate, eliminating the risk of transmission. From an environmental perspective, it reduces emissions and energy consumption and decreases the land area required for civil engineering by 30%.

In addition, its main structure is welded with light steel keels, and the exterior walls can be made of materials such as color steel plates or metal carved plates. The standard configuration includes a toilet bowl, lighting, and an exhaust fan, and it supports optional configurations such as air conditioners and air purifiers, balancing practicality and comfort.