For hundreds of years the only stormwater management that humans did was to make sure the water didn’t flood their homes or wash too much farmland away. This led to plenty of erosion of the land and lots of pollution in the rivers and streams. In addition to that, all of the land that was covered up by buildings, roads, and parking lots mostly drained directly to streams and rivers thus not allowing the water to reenter the aquifers below ground. This led to many of the aquifers in the world being drained and no longer available for drinking and irrigation. Nowadays the story has changed, with a strong emphasis on retaining water to allow it to soak in, and filtering the water of pollutants, debris, and garbage. Most municipalities have comprehensive stormwater management systems that are constantly being upgraded with more advanced equipment and technology as it’s being invented. Here are some details about stormwater debris separators.
It’s Important To Divide Up The Garbage And Debris
Researchers are constantly examining the debris that ends up in stormwater in order to find new ways to sort it out and eliminate it. They start by making sure the streets are cleaned with street cleaners, and the drains are covered by grates and screens. This prevents a lot of the plastic bottles, food packages, and other litter from entering the system.
There is also lots of chemicals from fertilizer and pesticide runoff that must also be dealt with as well. Plus, one of the more difficult problems is the large amount of petroleum byproducts like oil, tar, and grease that come from cars, trucks and buses. Each different type of pollutant has its own method of extraction from the system with most separators having a goal of up to 80% of available pollutants. Of course, this is in a perfect world when there is sufficient water passing through the system to make it operable in an optimal way.
Stormwater Debris Separator Units Do A Great Job
These units usually take advantage of the natural tendency of water to swirl as it goes through pipes of certain shapes. This causes some debris to be jettisoned, mostly floatable plastics, while other debris settles in the center, mostly heavy sediment. It takes advantage of gravity and swirling to separate out the garbage and debris without any moving parts whatsoever.
Included in the floatables is also the oils and greases since they are lighter than the surrounding water. That’s important since they are difficult to get rid of if the travel farther into the system or reach a lake or stream. All of the floating debris ends up in a storage container that is easily accessed below a manhole cover. Then, large vacuum trucks make the rounds on dry days and extract the pollutants for processing. Most debris separator units are able to handle several different types of pollutants all at the same time in order to pre-clean the storm water before it enters the system.
It is imperative that civilization cleans up their mess before Mother Nature dies a slow death buried in pollution. Each person, city, state and company must do its part all along the way. Failure to do so will result in mankind being up to their necks in garbage and no where to go.