How Mobile Toilets Dispose of Waste

The waste disposal methods of mobile toilets vary depending on their types, as detailed below:

Some mobile toilets have a simple design, featuring a squat toilet with two black ball devices installed beneath it. After a user finishes using the toilet, stepping on one of the black balls triggers an automatic flushing operation, which washes away the waste and keeps the interior of the toilet clean.

For water-flush and non-water-flush suction-type mobile toilets, the water-flush type is equipped with a water-flushing device inside, usually with a water tank placed at the top of the toilet and a sewage tank at the bottom to collect waste. During use, the waste is flushed into the sewage tank through the water-flushing device; the non-water-flush type lacks a flushing device, and waste directly falls into the bottom sewage tank. Since the sewage tanks of these two types are relatively small in capacity, when the number of users reaches a specified limit, timely suction treatment is required to pump out the waste from the sewage tank to ensure the normal use of the toilet.

Dry-packing mobile toilets do not have a water-flushing device. Instead, they use biodegradable plastic bags placed beneath the sanitary fixtures to collect waste. After each use, the system automatically replaces the plastic bag with a new one, ensuring cleanliness for every use. When the plastic bags are used up, they are collected and transported to a specialized treatment plant for disposal. This method is both environmentally friendly and convenient.

Foam-sealing mobile toilets use foam generated from a foaming liquid mixture to replace traditional toilet flushing. There is a foam channel on the side wall of the toilet fixture. After passing through this channel, the foam covers the inner side of the toilet bowl, forming a foam-sealing layer that prevents odors from escaping and also flushes away waste smoothly.

Microbial mobile public toilets employ advanced treatment technology. Waste enters a solid-liquid separation device through an automatically opening toilet bowl. This device filters the urine and separates the feces, then treats them separately. The feces enter a fermentation tank for decomposition, while the urine is treated and turned into reclaimed water, which is used to flush the urinal again, creating a water resource recycling loop. This approach not only saves water resources but also effectively treats waste.