Have you ever wondered how sewer systems work? Sewer systems are designed to transport wastewater and sewage away from buildings and communities, where it can be treated and released back into the environment. There are two main types of sewer systems: combined sewers and separate sewers.
Combined sewers are designed to carry both wastewater and stormwater in the same pipe. These systems are typically found in older urban areas and are more prone to flooding during heavy rain events. When it rains, the increased volume of stormwater can overwhelm the combined sewer system, leading to overflows and the release of untreated sewage into the environment.
Separate sewers, on the other hand, are designed to carry only wastewater and are typically found in newer developments. These systems are generally more efficient and less prone to flooding. Separate sewer systems have separate pipes for transporting wastewater and stormwater, which helps to prevent overflows and protect the environment.
Sewer systems consist of several key components, including pipes, manholes, catch basins, and pumping stations. Pipes are the main conduits for transporting wastewater and sewage, and they come in a variety of sizes and materials. Manholes are openings in the ground that allow maintenance workers to access the pipes for cleaning and repair. Catch basins are structures that collect stormwater runoff from streets and other surfaces, while pumping stations are used to lift wastewater to a higher elevation when necessary.
The process of treating sewage and wastewater begins at the treatment plant, where the water is screened to remove large debris and solids. The water is then subjected to a series of physical, chemical, and biological processes to remove contaminants and reduce the levels of harmful bacteria and other microorganisms. Once the water has been treated, it is released back into the environment, typically into a river or other natural waterway.
In summary, sewer systems work by collecting and transporting wastewater and sewage away from buildings and communities to a treatment plant, where it is cleaned and released back into the environment. The system consists of pipes, manholes, catch basins, and pumping stations, and is designed to prevent overflows and protect the environment.
Now you know how sewer systems work!