polyelectrolyte in water treatment
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Another essential chemical in sewage treatment is alum, or aluminum sulfate. Alum is a coagulant used in the primary treatment phase to facilitate the removal of suspended solids and colloidal particles. By causing these particles to clump together, or coagulate, alum aids in their subsequent removal through sedimentation. This is particularly important in reducing the turbidity of wastewater, thus improving the efficiency of subsequent treatment processes. The addition of alum not only enhances removal rates but also aids in the stabilization of organic matter.
sewage treatment plant chemicals used...
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3. Fillers Fillers are used to improve the mechanical properties of plastics while also reducing production costs. Common fillers include calcium carbonate, talc, and clays. These additives can enhance strength, rigidity, and thermal stability, making the plastic more suitable for various applications. Fillers also reduce the amount of expensive resin needed in formulation, making plastics more cost-effective.
what additives are used in plastics...