The following process is used to purify water for drinking - HSC - SSCE Chemistry - Question 11 - 2009 - Paper 1
Question 11
The following process is used to purify water for drinking.
Step 1: Screening
Step 2: ?
Step 3: ?
Step 4: ?
Step 5: Chlorination
Which sequence represents the corr... show full transcript
Worked Solution & Example Answer:The following process is used to purify water for drinking - HSC - SSCE Chemistry - Question 11 - 2009 - Paper 1
Step 1
Step 2: Flocculation
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Answer
Flocculation is the process in which fine particulates are agglomerated into a floc. This is an essential step in water purification to enhance the removal of suspended solids.
Step 2
Step 3: Settling
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Following flocculation, settling is the stage where the agglomerated particles are allowed to settle to the bottom of the tank, resulting in clarified water above the sediment.
Step 3
Step 4: pH adjustment
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In this step, the pH of the water is adjusted to optimal levels to ensure the effectiveness of subsequent treatment methods, including chlorination.
