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Manhole

Manhole

Manholes are masonry or RCC chambers constructed at suitable intervals along the sewer lines for providing access into them. They are used to carry out inspection, cleaning and removing obstruction in the sewer line.

Preliminary Treatment of Wastewater

Preliminary Treatment of Wastewater

It consists of removal of floating material (like dead animals, tree branches, papers, plastics, wood pieces, vegetables peels etc) and also the heavy settleable inorganic solids (grit etc). Preliminary treatment includes: Screening, Comminutors, Grit Removal, Skimming Tank etc

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