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Flocculants, such as polyacrylamides, are polymers employed to enhance the sedimentation of flocs formed by coagulants. They work by bridging the gaps between particles, leading to larger aggregates that settle more quickly. The use of flocculants significantly improves the efficiency of solids removal in the clarifier stage of sewage treatment. This chemical addition is especially vital when treating wastewater with low turbidity.
what are the chemicals used in stp plant
