Why is wastewater passed through bar screens in a wastewater treatment plant?

Q.

Question 20

Given below is a jumbled sequence of the processes involved in a wastewater treatment plant. Arrange them in their correct sequence.
(a) Sludge is scraped out and skimmer removes floating grease.
(b) Water is made to settle in a large tank with a slope in the middle.
(c) Large objects like plastic bags are removed by passing wastewater through bar screens.
(d) Sand, grit and pebbles are made to settle by decreasing the speed of incoming wastewater.
(e) Wastewater enters a grit and sand removal tank.

Q. In the sewage treatment process _____A_____ are easy to remove from wastewater whereas _____B_____are difficult to remove.

Q. In a wastewater treatment plant, which of the following contaminants can be removed using a bar screen?

Q. Read the passage given below and answer the questions that follow.

The treatment of wastewater involves physical, chemical, and biological processes to remove physical, chemical, and biological matter that contaminates the wastewater. The treated water coming out of the wastewater treatment plant

Q.

The process of removing large objects such as plastic bags, clothes, diapers etc using grills and nets in a wastewater treatment plant is called________.