Where Does Your Sewage Go? | BOD | Wastewater treatment process |process in STP| Explained in தமிழ்

Sewage treatment is the process of removing contaminants from domestic and municipal wastewater, containing mainly household sewage plus some industrial wastewater. Physical, chemical, and biological processes are used to remove contaminants and produce treated wastewater (or treated effluent) that is safe enough for release into the environment. A by-product of sewage treatment is a semi-solid waste or slurry, called sewage sludge. The sludge has to undergo further treatment before being suitable for disposal or application to land.
Sewage treatment may also be referred to as wastewater treatment. However, the latter is a broader term that can also refer to industrial wastewater. For most cities, the sewer system will also carry a proportion of industrial effluent to the sewage treatment plant that has usually received pre-treatment at the factories to reduce the pollutant load. If the sewer system is a combined sewer, then it will also carry urban runoff (storm water) to the sewage treatment plant. Sewage is conveyed in sewerage which comprises the drains, pipework and pumps to convey the sewage to the treatment works inlet.
BOD is a measure of the amount of oxygen required to remove waste organic matter from water in the process of decomposition by aerobic bacteria (those bacteria that live only in an environment containing oxygen). BOD is used, often in wastewater-treatment plants, as an index of the degree of organic pollution in water.
An oxidation ditch is a large circular basin equipped with aerators that i s used to remove organic matter and pollutants from sewage through the processes of adsorption, oxidation, and decomposition. Ensures stable, continuous dissolved oxygen measurement. Reduces operating costs.
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[@megavoice2013]

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[@TheDon9009]

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[@vigneshrajkgvicky]

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[@swaminathan5411]

Good explanation bro!!!

[@gopikrishnanchandrasekaran3013]

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[@syndicateengineer3146]

Glad you liked it :)