Sewerage is the dirty water and waste that goes down our drains when we shower, flush the toilet, or wash our hands. When we use water at home, all the dirty water and waste flows through pipes underground. These pipes connect to a larger pipe called a sewer. The sewer carries all the dirty water and waste to a treatment plant.
At the treatment plant, the dirty water goes through a process to make it clean again. First, big objects like sticks and plastic are taken out. Then, the water goes through filters to remove smaller things like dirt and tiny bugs. Finally, special chemicals or natural processes are used to make the water safe and clean.
After the water is clean, it can be released back into a river, lake, or ocean. Sometimes, the clean water is used to water plants in parks or crops on farms. The waste that's left behind after cleaning the water is called sludge. People at the treatment plant find ways to use or dispose of the sludge properly so that it doesn't harm the environment.
So, that's where sewerage goes! It goes from our homes to a treatment plant, where it's cleaned, and then it's released back into nature or used in other helpful ways.