Gujarat BoardEnglish MediumSTD 7ScienceWastewater Story1 Mark
MCQ
Bar screening is used to remove $........$
A
Sand
✓
Rags
C
Pebbles
D
All of the above
✓
Answer
Correct option: B.
Rags
Bar screening is a technique used to filter large products from the waste water.
A mechanical filter is formed in the way of waste water flow, so that the large solid wastes like rags, plastics, etc can be removed from the waste water.
It is used in the primary filtration level of the wastewater treatment plant.
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