How wastewater water from my bathroom and kitchen is treated before it is discharged into the sea?

Question

I dunnoe anything u c....

Answer 1

Depends where you live.

If it goes into a main sewer then first the solids are remove by filters and settling tanks. Next the liquid is oxygenated to remove bacteria. At around 90% pure enough to drink it is discharged into the local water course to be used again further down or make its way into the sea

Answer 2

Wastewater(ww) enters the treatment plant from the interceptor (big sewer). It is first chlorinated (by adding sodium hypochlorite aka bleach) to reduce odors and corrosive substances. It then goes through a large grate (called bar screens) to remove large floating objects such as 2x4's and rags. From here it passes through a tank that has air bubbling up through the ww to reduce its density so that small heavy particles such as rocks, pebbles and seeds will sink. (this is called the aerated grit chamber or tank) From here it goes long and slow through long deep channels so that all the light floating material will rise and all the sludge will sink (this is called primary clarification). At this point the ww goes through various types of biological treatments (called secondary treatment) where it is reacted with microrganisms to remove any disolved organic material (sugars,oils, etc). The ww then passes through another tank called a secondary clarifier where all the microrganism used previously can settle out. At this point the ww is basicaly the final effluent, its chlorinated to kill pathogens dechlorinated and then discharged to the recievin waters.

Answer 3

If you are really interested, and want to know specifically how it is done in your town, try to get a trip through the sewerage treatment plant. They might be glad to help you