Marathon Foldable Mobile Toilet
The marathon foldable mobile toilet is a portable sanitation facility specifically designed for event scenarios. Its design integrates materials science, environmental engineering, and public health management, with the following core features:
1. Material and Structural Optimization
The outer shell is made of high-density polyethylene (HDPE) or fiberglass, offering weather resistance, impact resistance, and lightweight properties for easy and rapid transportation and on-site assembly. The interior layout is compact, integrating a toilet, waste liquid collection tank, ventilation system, lighting system, and storage area for disposable sanitary products. The standard model occupies approximately 1 square meter, with an interior height of no less than 2 meters. The side walls use light-colored reflective materials, and the door panel features a translucent frosted window to alleviate the sense of confinement in the narrow space. The barrier-free version is 50% larger in size, equipped with an L-shaped handrail and a ramp with a slope of ≤5° to ensure independent use by wheelchair users.
2. Ventilation and Odor Control
The ventilation system is based on the principle of negative pressure exhaust. A low-power exhaust fan is installed at the top for directional air extraction, and a filter screen fresh air inlet is provided at the bottom to form a stable airflow circulation. This design can reduce the concentration of harmful gases such as ammonia and hydrogen sulfide by more than 60% without the use of chemical deodorants. Some new models are equipped with photocatalytic oxidation devices that activate a titanium dioxide coating with ultraviolet light to decompose organic odor molecules, further improving air quality.
3. Waste Treatment and Environmental Design
A hierarchical isolation technology is used, with solids and liquids entering sealed chambers through independent pipes. The liquid chamber is added with microbial degradants that decompose urea into carbon dioxide and water within 8 hours. The solid chamber uses biodegradable plastic bags pre-mixed with plant ash and humus to inhibit the reproduction of pathogenic bacteria and facilitate subsequent composting. Cleaning and maintenance follow a hierarchical disinfection principle: high-frequency contact areas (such as door handles) are wiped with quaternary ammonium disinfectants every 2 hours; the floor and walls are treated with hydrogen peroxide spray before and after each race every day; and a slow-release antibacterial coating is applied around the waste liquid collection port to continuously release chlorhexidine for up to 74 hours.
4. Intelligent Scheduling and Dynamic Layout
The command center monitors the toilet usage frequency, waste liquid capacity, and air quality in real-time through sensors. When the regional usage rate reaches 75%, the system automatically prompts the scheduling of vehicles for replacement, reducing the waiting time by 30% compared to the traditional fixed schedule model. The layout applies a crowd dynamics model, dynamically adjusting the toilet density to 0.5-2 per 100 people based on the population density differences at the starting point, along-the-way supply stations, and the finish line. Toilets at along-the-way supply stations are usually located 50 meters downwind of the medical points, taking into account both convenience and pollution prevention and control.
5. Market Product Examples
For example, the Qichang temporary toilet foldable urinal (for three people) is made of HDPE, has a service life of 10 years, is suitable for large-scale events and sports competitions, and has a minimum order price of 3,300 yuan per unit.
