The bar screen machine in the wastewater treatment plant at Itarsi Madhya Pradesh suffered a mechanical breakdown. State how would it impact the process of cleansing the wastewater and affect the people of Itarsi. [3 MARKS]
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Solution
Machine usage: 1 Mark Impact: 2 Marks
A bar screen machine in a wastewater treatment plant is an essential equipment as it helps to remove large objects floating in the water like rags, sticks, cans, bottles, plastic packets and even sanitary napkins. This machine plays an important role in separating suspended aggregates from wastewater before commencing the treatment of water. The people of Itarsi will be impacted by all these floating debris in their water feed if they are not separated right at the outset. Further, bottles, rags, sanitary napkins become the breeding zone of many undesirable bacteria and pathogens.