Mobile Toilet Restroom - Feces Disposal
The methods for disposing of feces in mobile toilet restrooms vary depending on the type, with the following being the main approaches:
Water-flush and Non-water-flush Suction Mobile Toilets: Water-flush mobile toilets are equipped with a flushing device, usually with a water tank placed on top of the toilet. After a user defecates, the waste is flushed into a sewage tank located at the bottom of the toilet. Non-water-flush types, on the other hand, lack a flushing device, and the waste is directly collected in the sewage tank at the bottom of the toilet. For both types of mobile toilets, due to the relatively small capacity of the sewage tank, when the number of users reaches a specified limit, timely suction treatment is required to remove the waste from the sewage tank to ensure the normal use of the toilet.
Recirculating Water-flush Mobile Toilets: These toilets are equipped with intermittent aerobic and anaerobic treatment devices for fecal sewage. During the treatment process, biological strains are added, and biofilm technology is employed to accelerate the fermentation and decomposition of fecal sewage. After treatment, the fecal sewage is filtered through a filtration device and can then be recirculated for flushing the toilet, achieving water resource recycling and improving water utilization efficiency.
Dry-packing Mobile Toilets: This type of toilet does not have a flushing device. The waste is collected by biodegradable plastic bags placed below the sanitary fixtures. After each use, the system automatically replaces the plastic bag with a new one, ensuring hygiene and convenience. The used plastic bags are collected centrally and then transported to a specialized treatment plant for disposal, preventing direct pollution of the environment by the waste.
Foam-sealing Mobile Toilets: These toilets use foam generated from a foaming liquid mixture to replace traditional toilet flushing. The foam covers the inside of the toilet bowl, effectively blocking the emission of odors. Moreover, this system only requires collected hand-washing water to meet its foam-generating water needs, saving water resources.
Microbial Mobile Toilets: The waste enters a solid-liquid separation device through an automatically opening toilet bowl. The urine is filtered out, and the feces are separated and treated separately. After entering the fermentation tank, the feces are mixed with initial ingredients, sawdust, biological strains, etc., through the rotation of a screw propeller. Under the action of microbial bacteria, decomposition occurs, and the feces are ultimately separated in the form of carbon dioxide and water, with a degradation rate of over 99%. The filtered urine enters a comprehensive urine treatment system and undergoes treatment processes such as aeration, evaporation, and decolorization.
