Comparison of chemical coagulation and

Lime and ferric are used as coagulants and polymer used as flocculant. Quantity used is Lime 1500-2000 ppm Ferric 750-1500 ppm Polymer 1-2 ppm Acid Depending on pH Hypochloride 50-100 ppm [Pg.108]

Huge volume of sludge is produced everyday due to the addition of lime and ferric. [Pg.108]

Sludge volume is very less since no chemicals are added in volumes [Pg.108]

6 The hardness of the water is increased in the chemicai coaguiation The hardness of the water remains same or decrease [Pg.109]

8 More iabour due to iime and ferric dosing Easy to operate iike a machine [Pg.109]

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