A Sewage Treatment Plant is a facility that cleans and processes sewage. It flows through screens and into settlement basins to sluice out the trash and debris that would otherwise cause a significant amount of damage to the equipment. This can cause excessive wear to the equipment and reduce its life. This process will ensure that wastewater is not contaminated with harmful bacteria, viruses, and other materials. Here are some things you need to know about STPs
Secondary treatment involves mixing raw and processed sewage, creating a homogenous solution. This mixture is mixed with oxygen to break down organic matter and remove pathogens.
How Sewage Treatment Plant STP Work?
Working of Sewage Treatment Plant is divided under three major Categories:
Primary Treatment / Preliminary Method
Secondary Treatment
Tertiary Treatment
1. Primary Treatment
In the initial process which is also known as preliminary treatment method, the most of the solid from the wastewater is removed. Process includes large filtering screens by which solid objects are removed.
60% of loose solid are settled in sink bottom, and water containing oil, grease and other harmful effluent (Chemical, Bacteria) remain floating.
2. Secondary Treatment
In the secondary phase of Sewage Treatment, the effluents are treated to remove the dissolve biological suspended. At his stage of separation process of treatment remove the micro-organisms.
3. Tertiary Treatment
This is the final stage of water treatment process; again water goes to filters to remove more waste if any found which is left during secondary treatment. Then the wastewater is disinfected chemically through micro-filtration which filters the water completely before releasing it to the natural sources of water like- seawater, lakes, ponds, or for reusability.
