Sewage Treatment Plant Primary Secondary Stages — a labelled NEET Biology diagram with a definitions lexicon.
Sewage Treatment Plant: Primary & Secondary Stages Labelled parts: Primary Treatment, Secondary Treatment, Screening, Grit Chamber, Primary Clarifier, Aeration Tank, Flocs, Secondary Clarifier, Anaerobic Sludge Digester, Biogas. A mass of aerated sewage containing aerobic microorganisms which helps to break down organic matter in sewage treatment. Masses of bacteria associated with fungal filaments to form mesh-like structures. A mixture of gases (mainly methane) produced by the breakdown of organic matter in the absence of oxygen.