To help keep water safe as it travels to homes and businesses, water treatment plants will make sure the water has low levels of the chemical disinfectant when it leaves the treatment plant. This remaining disinfectant kills germs living in the pipes between the water treatment plant and your tap.
What Does a Water Treatment Plant Do?
A water treatment plant is responsible for providing clean and safe drinking water to a community. It does this by removing impurities from water using a variety of physical, chemical, and biological processes.
The first step in water treatment is to screen out large debris such as sticks and leaves. The water then passes through a series of filters that remove smaller particles.
The most common type of filter is a sand filter. After filtration, the water undergoes a process called coagulation. In this step, chemicals are added to the water to neutralize charges and cause particles to clump together.
This makes it easier for the particles to be removed in the next step. The next step is sedimentation, in which the water is allowed to sit in large tanks for a period of time.
This allows the heavier particles to settle to the bottom, while the clean water remains on top. The water is then passed through a series of disinfection processes.
The most common method is chlorination, in which chlorine is added to the water. This kills bacteria and other microorganisms that can cause disease.
The final step in water treatment is to add a fluoride compound. This helps to prevent tooth decay. Water treatment plants