Mobile Toilet Fecal Purification

There are various methods for purifying feces in mobile toilets, mainly including the following:

Water-flush and non-water-flush suction types: Water-flush mobile toilets are equipped with a water-flush device, with the water tank usually placed on the top and a sewage tank at the bottom. Non-water-flush types have no flushing device and directly receive excrement in the bottom sewage tank. Both types have limited sewage tank capacities and require regular suction for treatment, making them suitable for temporary or low-traffic locations.

Recirculating water-flush type: Through intermittent aerobic and anaerobic treatment devices, biological strains are added and biofilm technology is used to accelerate the fermentation and decomposition of fecal sewage. The treated sewage is filtered and then recirculated for flushing sanitary fixtures, achieving water reuse. This method is suitable for areas with water scarcity or high environmental protection requirements.

Dry-packing type: Degradable plastic bags are used to receive excrement, with a new bag automatically replaced after each use. After use, they are collected and transported to a treatment plant, avoiding sewage generation. This method is simple to operate and environmentally friendly, but requires regular cleaning of the plastic bags.

Foam-sealing type: A foaming liquid mixture is used to generate foam that covers the inside of the toilet bowl, isolating odors and reducing the amount of flushing water. The system only needs to collect hand-washing water to meet the foaming requirements, resulting in significant water savings. It is suitable for arid or water-scarce regions.

Microbial type: Microorganisms are used to decompose excrement, producing biogas (which can be used for energy) and fertilizer (which can be used for agriculture or horticulture). This method achieves resource utilization, but requires control of the microbial environmental conditions to ensure decomposition efficiency.

Chemical treatment: Chemical agents are added to control odors and promote the decomposition of excrement. The treated substances are further processed through specialized equipment or discharged into the sewage system. This method is fast and effective, but care must be taken in selecting the agents to avoid secondary pollution.

Mechanical treatment: Specialized equipment is used for solid-liquid separation, decomposition, and disinfection, reducing environmental impact and ensuring hygiene and safety. It is suitable for locations with high hygiene requirements, but the equipment and maintenance costs are relatively high.

Sewage suction and purification vehicle treatment: Through a sealed solid-liquid separation compression tank, the sewage is separated into solid and liquid components. The liquid is treated into clean water for discharge or discharged into the municipal sewage network, while the solid waste is compressed and packed into garbage bins, and the organic fertilizer is dried and bagged for recycling. This method is efficient and environmentally friendly, suitable for large-scale or mobile toilet fecal treatment.