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How To Think Global & Act Local?

The process of sewage treatment involves various phases like Pre-treatment, Primary treatment, Secondary treatment and Territory treatment. In this blog, I will not go into much depth about the details of these processes. These three steps collectively remove nearly all contaminants from wastewater. Primary treatment removes cans, rags, sticks, plastic packets, sand, grit, stones, broken glass, fat and grease.

While in secondary treatment with the support of MBBR (Moving Bed Biofilm Reactor) technology sewage containing biodegradable soluble organic contaminants (e.g. sugars, fats, organic short-chain carbon molecules, etc.) are removed. Tertiary treatment which is also known as “effluent polishing” makes treated water fit for release in water bodies like sea, river, lake, wetlands, ground, etc. Tertiary treatment also mitigates Nitrogen, Phosphorus and biological contaminates which otherwise can cause algal blooms or Eutrophication in water bodies.

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