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Stages of Sewage Treatment Plant

Sewage treatment plants play an essential part in the society. It is also referred to as household wastewater treatment plants. The process in sewage treatment plants would be to clean up and treat the sewage that comes from home and commercial purposes. The treatment of wastewater is very important so it won't pollute the environment nor do harm by spreading illnesses which will be health hazard to the people. 

Design and construction of Sewage Treatment Plants : It is basically composed of 3 stages. 

Primary stage : the substances that are simple to eliminate are taken out from the wastewater. The floating solids like grease, oils, and fats are skimmed and also taken out from the surface area. The other solids such as rocks and grits are strained and other big items are raked out in order to prevent the destruction of sewage plants machines and facilities.

Secondary stage : the key goal would be to remove the biological contaminants in wastewater. In the secondary stage, the biggest technical treatment and removal of waste is going to occur. There are lots of methods utilized to lessen and eliminate the biological contaminants in the wastewater. Usually, microorganisms are employed to eliminate the unwanted elements. 

Tertiary stage : This is where the last treatment will happen, objective is to make the water as clean as it can be before it's discharged to the natural environment. This is accomplished by man-made or artificial systems of filtration. The treatments are also used to eliminate the nitrogen and phosphorous content of the liquid. The excess liquid is further disinfected by using chlorine as well as UV treatment.

The sludge or the solid wastes that are left from the treatment of wastewater is dealt individually and differently as compared to the liquid wastes. The treatment of sludge is yet another important function of the sewage plants. This is usually done through the process of anaerobic and aerobic procedures that uses bacteria for treatment. Another method is the use of composting to break down the biological contaminants of the wastes.

The water that comes out of the sewage treatment plants are actually clean and free from pollutants that has a level of acceptability when released to the environment specifically to the bodies of water. The water can also be utilized for irrigation purposes. The sewage treatment plants increase the speed of the treatment of wastewater and in a large extent. It will make certain that the liquid will not pollute the environment and because it is a continuous process, the function is extremely important because of the volume of wastewater that gets into the sewage treatment plants that requires to be processed is enormous.