A physicochemical treatment (coagulation–flocculation) was applied to a slaughterhouse wastewater, using anionic polyacrylamide as coagulant aid to improve the settling velocity of the flocs formed with the coagulants used: ferric sulphate, aluminium sulphate and polyaluminium chloride.
3.1.- Determination of the optimal coagulant aid dose. The experiments were performed with a fixed coagulant dose with respect to the metal ion (500 mg Me3+ l-1). Prior to the addition of the coagulant aid, experiments were carried out with different pHs in order to determine the optimal pH values for performing the experiments.
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A coagulant aid is a chemical or material, which is not a coagulant, used to assist or modify coagulation. Coagulant aids add density to slow-settling flocs and add toughness to the flocs so that they do not break up during the mixing and settling processes.
Anionic Polyacrylamide Polymer is used for water treatment, mining, paper mills and sugar production. Polyacrylamide (abbreviated as PAM) is a polymer (-CH 2 CHCONH 2-) formed from acrylamide subunits. It can be synthesized as a simple linear-chain structure or cross-linked. Benefits: High performance high molecular weight anionic polyacrylamide
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Anionic Polyacrylamide Chemicals Flocculant Water Treatment Polymer. 1. Product characteristics. Anionic polyacrylamide (APAM) series products are water-soluble linear polymers synthesized under high degree polymerization, easily soluble in water, almost insoluble in the benzene, the ether, the aliphatics, the acetone and other common organic solvents.
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Request PDF on ResearchGate | Improvement of coagulation-flocculation process using anionic polyacrylamide as coagulant aid | A physicochemical treatment (coagulation-flocculation) was applied to ...