A chemical toilet collects human excreta in a holding tank and uses chemicals to minimize odors. These toilets are usually, but not always, self-contained and movable. A chemical toilet is structured around a relatively small tank, which needs to be emptied frequently. It is not connected to a hole in the ground (like a pit latrine), nor to a septic tank, nor is it plumbed into a municipal system leading to a sewage treatment plant. When the tank is emptied, the contents are usually pumped into a sanitary sewer or directly to a treatment plant.
The portable toilets used on construction sites and at large gatherings such as music festivals are well-known types of chemical toilet. As they are usually used for short periods and because of their high prices, they are mostly rented rather than bought, often including servicing and cleaning.
Aircraft lavatories and passenger train toilets were in the past often designed as chemical toilets but are nowadays more likely to be vacuum toilets.
A simpler type of chemical toilet may be used in travel trailers (caravans) and on small boats.
Many chemical toilets use a blue dye in the bowl water. In the past, disinfection was generally carried out by mixing formaldehyde, bleach, or similar chemicals with the toilet water when flushed. Modern formulations are nitrate-based and work biologically. Since formaldehyde is very irritating to the eyes, ears, skin, nose, and throat, it is being replaced by other proprietary blends such as glutaraldehyde and quaternary ammonium compounds, with non-staining dyes and nature-identical perfume oils. Additionally, enzyme hybrids are sometimes used.
n. a toilet consisting of a seat above a container containing disinfectants and deodorizers
Usage examples of "chemical toilet".
It would only remind her that she was confined and could not go out there to walk through the fields, breathing fresh air that did not smell of a chemical toilet.
They brought him food, water, kept his chemical toilet in operation.
There was a single chemical toilet in a Portaloo on the patio outside the entrance, with another immense but patient queue, which Ted joined.
If you draw a proposal, then you have to go to the import beer festival this weekend and push over a guy in a chemical toilet.
When she'd finished, Lister got up, and strolled over to the cell's chemical toilet, wrenched it from the wall, and poured it over her head.
There's no power aboard the ship, so he uses a flashlight to get down the pitch-black passageways to shit outside, in a chemical toilet installed near the faded shuffleboard outlines on deck.
The crewmen got up at different times, used the chemical toilet, drank hot instant coffee or tea, and ate food saved from the grails, supplemented by acorn bread and dried fish.
The boy wheeled my chair to a bedroom with a single bed, a chemical toilet, and a deadbolt on the door that could only be unlocked from the outside.
There was enough food, water, chemicals for the chemical toilet, odds and ends, extra clothes, to last us a year.
The investigator had a cooler full of soft drinks, a large Thermos of coffee and a chemical toilet.
Norman awoke to see a brilliant shaft of light, streaming through the single porthole, shining down on the chemical toilet in the corner of the decompression chamber.