Use bacteria to deodorize the toilet

Chinese scientists recently introduced a stinky deodorant method in public toilets using a spray of bacteria.

Deodorant is an aerosol spray, made from 6 bacterial strains that can break down the structure of odor compounds. It can eliminate almost completely the stench of public toilets. After this step, the toilet will be sprayed with a scent from the orange peel to create a slight odor in the air.

A public toilet in China. Photo: Alamy

"We extract bacteria from all kinds of excrements, from human excreta to animal dung like pigs, chickens and ducks." Then we tested the compounds one by one, "the Telegraph quoted Dr. Yan Zhiying as saying. , a researcher at the Chengdu Institute of Biology at the Beijing Academy of Sciences.

The odor from public toilets, dirty water pits or garbage dumps, comes from over 160 different compounds. The beneficial strains of these compounds, such as cllactobacillus, saccharomycetes, and actinomycetes, can create an unfavorable environment for the development of rotten bacteria.

According to the research team, the method has no side effects and can be used to treat bad odors from many biodegradable processes. Each pound of medicine costs more than $ 8.

At public toilets or simple toilets in small cities or suburbs, the stifling odor comes from sulfur and ammonia in the urine and faeces. In the 1990s, one third of the complaints to the travel agency in Beijing were related to the design or the stench of public toilets.

To improve the standard of public toilets, China last February issued a regulation limiting the number of flies in these buildings. According to the draft Chinese Ministry of Health, there will be at most three flies per m ² of built toilets, and only one will be allowed in public toilets built in buildings. other.