The world is mostly composed of water. Humans and all living things on Earth need it to nourish themselves and survive. But, like other natural resources that humans need, water is also affected by climate change. Waste products from households, industrial plants, and the general public are consumed by the Earth and are reflected slowly through climate change.
To reduce these negative effects and protect the environment, people have come up with methods of treating water before releasing it back to the environment. The method is known as wastewater treatment.
What is wastewater treatment?
Water used by people and industries daily is contaminated. The water you used to rinse your hair has chemicals from shampoo that might be harmful to the environment if it is released without undergoing treatment. This used water is known as wastewater, as it does not have other suitable function. Machines such as tanks with clarifier parts are necessary to get the job done. These machines help in cleaning out wastewater, removing solid objects and small particles before releasing the water back into the environment.
There are two types of wastewater treatment plants.
- The biological treatment uses natural organisms to treat wastewater. Wastewater from household, commercial, and public properties are generally processed through this method.
- The chemical treatment uses a variety of chemicals to removes toxins found in the water. Wastewater coming from industrial plants and factories are subject to this kind of treatment.
Wastewater treatment steps
The first step in wastewater treatment is screening. This is the part where huge objects are removed to prevent machine malfunction. Primary treatment is the next step. This is where solid objects are separated from the water by allowing them to sink down and form a sludge. The sludge is removed by the machine. The water undergoes second treatment through pumping air that breaks bacteria that were left from the primary treatment. Then it undergoes the final stage where it passes through the settlement tank and is screened for sludge. It is then transferred to a wall of a sand filter before being released to the river.
Humans are helping our planet through cleaning the water before releasing them. You might not have machines, but you can also do your part by being mindful of your use.