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Title: Alum

Essay Details:

Subject: Science
Date: March 3, 2012
Level: University
Grade: A
Length: 3 / 605

Essay text:

This is due to the highly charged aluminum ion produced when alum dissolves in water. [3] Iron compound flocculants have similar floc characteristic to alum. However, residual iron in water gives an unpleasant taste and it may also cause staining and blockage of water lines. [2] On the other hand, organic flocculants is effective in forming flocs but do not produce large volume of flocs compared to alum which is useful in entrapping bacteria as they settle. Also, alum precipitates organic colour bodies whereas organic flocculants do not. [1] Both solution and dry alum are available as flocculant...

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