A photo from open sources
To detect water pollution, today everywhere conductivity meters and thermometers however it is very expensive pleasure and at the same time not the most effective. Specialist from The United Kingdom found it much better to use female tampons and ultraviolet emitters.
David Lerner – Professor, University of Sheffield – organized an interesting project, in which the main role is assigned feminine hygiene products. Scientist has acquired several packs of tampons and lowered them into the sewer system of his city. It turned out, that absorbent cotton cylinders can act as cheap and An accurate tool for determining water quality.
The modern city has two sewage systems with different destination. The main sewage system collects waste from plumbing appliances, sending them for further processing. Also in any the metropolis has a storm collector that accepts rainfall and redirecting them to rivers and streams. Of course, sewage systems do not should be in contact with each other, however sometimes unforeseen circumstances and sewage spills out in clean water. In this case, it is necessary to quickly identify pollution and eliminate it.
Visually, the wastewater leak is almost invisible. Can use optical brighteners that are exposed to water ultraviolet rays begin to glow brightly. Standard the fiber optic cable running into the system costs thirteen dollars for examining one meter of the pipeline, which is prohibitively expensive method.
David Lerner’s idea saves millions of dollars on detecting wastewater leakage. Experts dripped on cotton bleach cylinders and fired them at sixteen ground Sheffield collectors. In place, tampons were held by special bamboo fishing rods. After three days, the hygiene products were removed and tested with ultraviolet light, which allowed to determine collectors contaminated with domestic water.
Interestingly, in Florida (USA) it is forbidden to talk about global warming.
Water
