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Topic: Science
Number of pages / Number of words: 3 / 605
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[1]

The use of alum in flocculation may alter the pH value of the system to a more acidic condition. This is because alum consumes alkalinity and therefore addition of base is needed to neutralize the water so that the flocculation process works efficiently and the water can be consumed. [1, 2, 3] Other aluminum salts have advantage over alum for this aspect as they do not lower the pH as much compared to alum...


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[1, 2, 3] Other aluminum salts have advantage over alum for this aspect as they do not lower the pH as much compared to alum. As for organic flocculants, they do not consume alkalinity of the system at all. Hence addition of base is not required. [1, 3]

Alum is effective in removing unwanted materials in water and is widely available with a lower price compared to other flocculants...


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