PDF chapter test TRY NOW
Differentiate the sentences:
Answer variants:
After the removal of large objects, the wastewater is sent to the grit and sand removal tank.
To remove the large objects like plastic bottles, napkins, rags, cans and sticks, the wastewater is first passed through the bar screens.
The water is then removed from the top by machines or sand drying beds as the activated sludge is 97% water.
Biogas is used as a fuel and to produce electricity.
The water is now sent to the tank which is sloped in the centre, known as clarifier.
This aerobic bacteria consumes the human wastes, food wastes, soaps and other unwanted matter that are still found in the clarified water.
Removal of solids:
Removal of suspended sludge:
Register for free to see more content