Yichang Mobile Flushing Toilet

The Yichang mobile flushing toilet is an important infrastructure designed in the Yichang area to meet the temporary toilet needs of large-scale events, construction sites, etc. It adopts a non-pipeline excreta treatment system and achieves independent operation through containerized storage and chemical-physical treatment.

Technical Composition and Core Principles

Its basic unit consists of three parts:

1. Box Structure: The materials used are high-density polyethylene or fiberglass-reinforced plastic. The former has strong resistance to temperature-induced deformation and is suitable for outdoor environments; the latter has better impact resistance and is applicable to construction sites and other scenarios prone to collisions.
2. Sewage Storage Container: As a closed storage space, it does not rely on biochemical degradation. Taking a standard single unit as an example, with a volume of 1.5 - 2 cubic meters, it can operate for 3 - 4 days without sewage removal when used by 150 people per day on average. It is equipped with a liquid level sensor inside. When the capacity reaches 80%, an alarm is triggered to dispatch a sewage suction truck for treatment.
3. Circulating Flushing System: It mixes clean water and disinfectant through a micro-pump and a separation device. Some adopt the "foam sealing" technology, with a water consumption of only 1/10 of that of traditional flushing, and a single flush of 0.1 - 0.2 liters. Others are of the "vacuum-assisted" type, which uses negative pressure to quickly suck up the liquid and reduce noise. The "gravity head" type relies on the natural flow due to height differences, with a simple structure but requiring high-pressure water storage. All designs must pass a tightness test to prevent leakage.

Climate Adaptability Design

In view of the characteristics of the subtropical monsoon climate in Yichang:

• Winter Anti-freezing: It is equipped with an electric tracing system. Self-limiting heating cables are wound around the pipes. When the temperature drops below 5℃, the cables are automatically powered on to maintain the pipe temperature above 10℃.
• Summer Odor Suppression: Two-stage measures are adopted. First, biological enzyme preparations are added to decompose organic matter and inhibit anaerobic gas production. Second, the exhaust gas is adsorbed and discharged through a top ventilation fan and an activated carbon filter device.

Rental Service Process

The service provider plans the number of equipment according to the site type and the flow of people. After transportation, it needs to be leveled and fixed (using expansion bolts or weighted sandbags). During the operation and maintenance phase, sewage is regularly sucked out, with the frequency determined by the container capacity and the intensity of use. After sewage suction, the inner walls of the container are flushed and vulnerable parts are inspected. The waste liquid is transported to a municipal sewage treatment plant or a self-built treatment station. The "solid-liquid separation + flocculation and sedimentation" technology is adopted. The solids are filter-pressed into mud cakes with a moisture content of less than 80%, and the liquid is discharged up to standard after microbial oxidation and disinfection, reducing the risk of secondary pollution.