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Sewage Treatment

Sewage treatment refers to the process of removing contaminants, micro-organisms and other types of pollutants from wastewater. Wastewater, or raw sewage, is water that drains from toilets, sinks, showers, baths, dishwashers, washing machines and also liquid industrial waste. Physical, chemical, and biological processes are used to remove contaminants and produce treated wastewater that is safe for release into the rivers and streams in local areas. The quality and cleanliness of the water is regulated by the Environment Agency to ensure it meets the necessary high standards.

Sewage Treatment Plant Operating Principle

In addition to anaerobic digestion taking place in the primary settlement chamber [2] the Ensign unit allows the clarified water to pass into a second ‘aeration’ chamber [3] where it is treated to remove the dissolved constituents. Here aerobic bacteria, supported by diffused air and mobile media, ensures full treatment is achieved before the treated effluent and ‘sloughed off’ bacteria flows to a final settlement chamber [10]. The final effluent is then discharged to the drainage field or watercourse via a Polylok filter.