Question
During _____ , sand and heavy dirt particles are allowed to settle down in a wastewater treatment plant.
Answer: Option B
:
B
Wastewater is a complex mixture of lather, oil, organic and inorganic impurities. It needs to be purified before it is discharged into the water bodies. The whole process is called wastewater treatment.
Sedimentation is the process in which the heavy dirt particles and sand is allowed to settle at the bottom of the tank under the influence of gravity.
Screening is the first step in wastewater treatment. In this wastewater is passed through screens and bars to remove large objects like plastic bag, sticks, and cans.
In aeration, air is pumped into the water to help aerobic bacteria to grow. Bacteria consume human waste, food waste, soaps and other unwanted matter still remaining in water.
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:
B
Wastewater is a complex mixture of lather, oil, organic and inorganic impurities. It needs to be purified before it is discharged into the water bodies. The whole process is called wastewater treatment.
Sedimentation is the process in which the heavy dirt particles and sand is allowed to settle at the bottom of the tank under the influence of gravity.
Screening is the first step in wastewater treatment. In this wastewater is passed through screens and bars to remove large objects like plastic bag, sticks, and cans.
In aeration, air is pumped into the water to help aerobic bacteria to grow. Bacteria consume human waste, food waste, soaps and other unwanted matter still remaining in water.
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