We use water on a daily basis, both to satisfy our needs and for our everyday activities. After use, water is evacuated into the sewer system. But what happens to our wastewater? Here’s everything you need to know about wastewater treatment.
Where does our wastewater go?
Wastewater infiltrates the ground. If it doesn’t, it’s sent to a treatment plant via a sewer system. Different types of treatment are used, depending on the type of water entering the plant and the quality requirements of the water leaving the plant.
Water self-purification
Wastewater can be discharged naturally or via industrial drainage channels. Most of the wastewater discharged consists of organic waste. These are absorbed by the soil, rivers and streams.
At the initial point of discharge, the water first flows by gravity through a network of drainage pipes. This water must then be conveyed to the treatment site. You’ll need to use Rs-pompes.com sewage lift pumps for work of this kind. However, natural sewage disposal requires an environmental certificate.
Water purification in sewage treatment plants
Wastewater is also evacuated via drainage networks. This water ends up in wastewater treatment plants. Here, purification takes place in depth, as human activities are more polluting. Often, the first steps in water treatment are purely physical. Solid particles are allowed to settle to the bottom of a retention tank. The sludge resulting from the various treatments is dewatered and then eliminated by oxidation.
The water is then filtered through sand or other fine particles. Filters are used to filter out large particles and, as a minimum, chlorine is added to kill harmful bacteria and micro-organisms. Some systems have additional water treatment that uses biological processes to remove organic matter, nitrogen and phosphorus. They have a membrane tank to remove bacteria and suspended solids.
Ultraviolet disinfection is used to inactivate viruses, and aeration to increase oxygen levels. All this is necessary for the survival of fish living in a river where treated wastewater is discharged after cleaning.
The lift pump to evacuate water
The sewage pump is used to clean up a plot of land by evacuating wastewater. It is used to drain wastewater to treatment plants. The lift pump is included in a lift station. It is made up of a motor, capable of delivering pressure into a station tube. Its use is particularly important in the context of sewage lifting.
It can be easily operated to discharge your wastewater into the environment or into the sewage system, from floor to floor. This is essential when a level or slope is raised.
