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A chemical toilet is a toilet which uses chemicals to deodorize the waste instead of storing it in a hole or piping it away to a sewage treatment plant.〔http://www.wisegeek.com/what-is-a-chemical-toilet.htm〕 Common types include an aircraft lavatory, some passenger train toilets and the portable toilets used on construction sites and at large gatherings. They can normally be identified with a blue-colored dye in the bowl water. Because chemical toilets are usually used for short term periods and because of their high purchase prices, they are mostly rented rather than bought, often including servicing and cleaning.〔http://portapottyrentalhouston.net/〕 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. Chemical toilets are often used on construction sites and at outdoor gatherings such as music festivals, and in caravans. Since formaldehyde is very irritating to the eyes, ears, skin, nose, and throat, it is being replaced by other proprietary blends such as glutaraldehyde〔(Australian government information on glutaraldehyde )〕 and quaternary ammonium compounds,〔(Quaternary ammonium compounds )〕 with non-staining dyes and nature-identical perfume oils. Additionally, enzyme hybrids are sometimes used. == See also == * Sanitation 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Chemical toilet」の詳細全文を読む スポンサード リンク
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