A Sewage Treatment Plant (STP) treats the sewage produced from various establishments to make it safe for disposal. It performs physical, chemical, and biological processes to remove contaminants and produce treated wastewater that is safe enough to dispose of into the environment.

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It is essential to clean and treat the sewage wastewater before it enters the natural environment. If sewage is disposed into the water sources without treatment, it will contaminate them, kill living organisms, and produce diseases.

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Commercial and industrial establishments are required to treat their sewage based on set quality standards before discharging to the sewer. For this purpose, a sewage treatment plant is installed at the vicinity to eliminate harmful contaminants before disposing it into the environment.