Having access to domestic dwellings is a basic human necessity and part of our right to have basic social services. In fact, we shower everyday and we see how the water drains away. Same thing when we are washing the dishes and watch as the kitchen sink slowly drains. Have you ever stopped and asked yourself where it goes and what people do to secure that we don’t run out of safe water? Well, this article just might provide you with the answer.
How does it work?
1. The water we see slowly passing down the drain heads towards the wastewater treatment plant (WWTP). If you are thinking about the size of the objects that can fit, to give you an idea, it is almost as big as the size of a car so even mattresses and huge trees can actually fit.Â
2. The first stage is the pre-treatment, where the water flows through a gravel chamber and gets immediately disposed at the dump. In order to screen unnecessary elements accompanied by the dirty water, it goes through bar screens. Don’t worry, these are not just a single screen. Wastewater actually goes through coarse screens and fine screens to remove even the smallest grain of rice.
3. After getting rid of unnecessary objects from the water, the grit should also be removed from it. Almost the same as the first chamber,Â grit is removed from the tank and disposed of at the dump. The grit is never used again because of the high level of contamination.
10. After a series of biological processes, settling methods, and wastewater checking, the final step is the deep inspection of the final product. Of course, you wouldn’t want to reuse water with sludge, right? At this point, the WWTF analyses and ensure that the treated water is safe for every purpose.