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Question

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

A
Oil and grease
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B
Grit and pebbles
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C
Cans and rags
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D
Bacteria and faeces
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Solution

The correct option is C Cans and rags
In the process of wastewater treatment, bar screens are used in the first stage. It is used as a filter to remove large objects such a rags, sticks, cans, plastic packets etc.

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