Effluent Water Treatment Plant

Wastewater and sewage is treated in three phases: primary (solid removal), secondary (bacterial decomposition), and tertiary (extra filtration). Sewage is generated by residential and industrial establishments.Sewage treatment is a type of wastewater treatment which aims to remove contaminants from sewage to produce an effluent that is suitable to discharge to the surrounding environment or an intended reuse application, thereby preventing water pollution from raw sewage discharges.Britannica Dictionary definition of SEWAGE TREATMENT PLANT. [count] chiefly US. : a place where sewage is cleaned so that it is not harmful or dangerous to the environment.The basic principle of the working of a biological treatment plant is decomposition of the raw sewage. This process is done by aerating the sewage chamber with fresh air. The aerobic bacteria survive on this fresh air and decompose the raw sewage which can be disposed of in the sea.