What is added to the water treatment tank to settle the colloidal particles?
A) Alum
B) Alum and lime
C) Lime
D) Potash
Correct Answer:
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Q4: Foaming is caused by the formation of
Q5: The term 'Sullage' refers to:
A)Fresh wastewater
B)Septic wastewater
C)Wastewater
Q6: Wastewater can become septic by the loss
Q7: Which one of the below is not
Q8: The extent of water treatment depends on
Q10: Disinfection of water in our country is
Q11: Which minerals and in what form are
Q12: How many types of wastewater treatment plants
Q13: On how many conditions does the intervention
Q14: The surface water quality is affected by
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