Wastewater or sewage treatment is the process of removing contaminants from wastewater or sewage and converting it into an effluent that can be returned to the water cycle with minimum impact on the environment, or directly reused.
Sewage treatment works as a system that uses physical, chemical, and biological processes to remove contaminants from wastewater. Wastewater can only be released into the environment, after all harmful impurities have been removed.
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