Production of Fecal Tanks for Mobile Toilets

The production of fecal tanks for mobile toilets requires comprehensive design that combines treatment technology, material properties, and usage scenarios, with the core goal of ensuring the safe collection and environmentally friendly treatment of excreta, as well as adapting to the flexible deployment needs of mobile toilets.

I. Material Selection and Structural Adaptation

The fecal tank needs to work in conjunction with the overall structure of the mobile toilet (such as light steel keels or aluminum alloy frames), and the materials should balance durability and environmental friendliness.

• Fiberglass Reinforced Plastic (FRP): It has strong corrosion resistance and can be molded as a whole, making it suitable for complex curved surfaces or highly corrosive environments (such as coastal areas).
• Metal Embossed Panels: Based on galvanized steel sheets, these panels have high strength and good fire resistance, making them suitable for scenarios with high structural stability requirements (such as high-altitude or strong wind areas).
• Plastic Bucket Modification: In simple cases, plastic buckets can be cut and fitted with pulleys, with the bottom raised and sealed with epoxy resin glue to balance mobility and sealing.

II. Technical Paths and Core Design

Different treatment methods have significantly different design requirements for fecal tanks:

• Packaging Type: It requires a biodegradable film packaging mechanism to store excreta in a collection tank through mechanical sealing. Key points include the degradation rate of the film and the reliability of the packaging mechanism. Subsequently, the packaged waste needs to be transported to a centralized treatment site.
• Microbial Degradation Type: The fecal tank serves as a reaction chamber, requiring the introduction of specific bacteria and the configuration of ventilation and insulation systems (such as temperature sensors and oxygen pumps) to maintain a microbial decomposition environment. The design should minimize residues and odors, but the operating cost is relatively high.
• Vacuum Suction Type: It uses a vacuum pump to generate negative pressure and sucks excreta into the fecal tank with a water volume of 0.5-1 liters per use. It is necessary to ensure the sealing of the pipeline and the stability of the negative pressure, making it suitable for water-scarce areas or places with strict discharge requirements (such as desert scenic spots).

III. Production and Installation Points

• Modular Design: The fecal tank needs to be compatible with the frame of the mobile toilet to ensure stability during lifting, transportation, and use, preventing deformation or leakage due to vibration.
• Corrosion Protection and Sealing Treatment: Metal materials should be hot-dip galvanized for rust prevention; connections should use multiple overlaps or be filled with epoxy resin glue to prevent leakage (such as at the interfaces between the tank body and pipelines).
• Drainage and Ventilation Systems: Configure drainage holes, tee joints, or ventilation pipes according to the treatment method. For example, the vacuum type requires drilling holes in the tank body and bottom to install water pipe joints, enabling multi-functional water supply for toilet flushing and showering.