Mobile Toilet Sewage Pipe Buried Underground

When burying the sewage pipe of a mobile toilet underground, it is necessary to standardize operations in terms of pipe material, pipe diameter and slope, connection to the municipal sewage network, and construction requirements, while also understanding the advantages and disadvantages of underground burial.

1. Pipe Material Selection: It is advisable to choose materials that are corrosion-resistant and have high strength, such as UPVC pipes or PE pipes. These types of pipes are lightweight, easy to install, and effectively prevent acid-base corrosion, making them suitable for temporary scenarios. Avoid using metal pipes that are prone to rusting, as metal pipes immersed in sewage for long periods are likely to rust, leading to leakage issues and affecting sewage discharge efficiency.
2. Pipe Diameter and Slope Design: Determine the pipe diameter based on the number of users. Generally, for a single set of toilets, it is recommended that the main pipe diameter be no less than 110mm and the branch pipe diameter be no less than 50mm. The pipe slope should be maintained between 3% and 5% to ensure smooth sewage flow. In low-lying areas, the slope can be appropriately increased or drainage wells can be installed to prevent water accumulation and pipe blockage.
3. Connection to the Municipal Sewage Network: Sewage pipes should be connected to the nearby municipal sewage network as much as possible. If connection is not possible, temporary septic tanks or collection wells need to be installed. The capacity of the septic tank should be calculated based on the number of users, generally designed at 0.1 cubic meters per person per day. The pipe connections must be sealed to prevent leakage that could contaminate the soil and affect the surrounding environment.
4. Construction Requirements: Before laying the pipes, conduct on-site surveys to avoid underground pipelines and obstacles. During construction, adopt open laying or buried methods, with a burial depth of no less than 30cm to prevent pipe freezing and cracking in winter.
5. Advantages and Disadvantages of Underground Burial:
   • Advantages: Underground buried sewage pipes can prevent sewage from being directly discharged into natural water bodies such as the ground surface or rivers, reducing the risk of water pollution and lowering the degree of environmental pollution. At the same time, they can effectively avoid affecting the aesthetics of the city, making it cleaner and more beautiful.
   • Disadvantages: The construction cost is high, requiring a series of tasks such as engineering design, construction, and material procurement. Maintenance is difficult, as problems require excavation of the ground for repair or replacement. There are also safety hazards, as high groundwater levels can lead to leakage, posing a threat to residents and the environment.