Question

Describe the various steps involved in getting clarified water from wastewater

Answer 1

Answer: The following steps are involved in clarifying wastewater:

●Insoluble waste is removed by filtration and sedimentation processes.
●Bacteria are allowed to grow through the process of aeration.
● Bacteria eat away human waste from the wastewater.
●Chlorination is used to kill the germs in clarified water.
●After this step, the water becomes fit even for human consumption.

Answer 2

Answer:

The wastewater treatment involves the removal of physical,chemical and biological pollutants from wastewater.

This is done in several steps :

• Passing through bar screens - To remove large objects.
• Removal of grot and sand by allowing the wastewater to stand in a tank.
• Sludge removal - It is done in large circular tanks. The sediment and the floating matter are removed.
• The clarified water is subjected to aeration. Herr aerobic bacteria decompose biodegradable pollutants.
• The clean water is either disposed off into river/sea , or disinfected with chlorine before distributing to the users.