purification of water using alum
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In addition to coagulation, cationic polymers are often employed in sludge dewatering processes. They improve the dewatering characteristics of sludge by altering the physical properties of the colloids present. By promoting the agglomeration of sludge particles, cationic polymers enable better water removal during mechanical dewatering processes, resulting in a drier and more manageable solid waste.
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In addition to cost-effectiveness, fillers can improve the mechanical properties of plastics. For instance, the addition of glass fibers or carbon black can enhance the tensile strength, impact resistance, and stiffness of polymer composites. This makes fillered plastics suitable for a wide range of applications, from automotive components to electronic housings. In particular, glass fiber-reinforced plastics (GFRP) are increasingly used in lightweight construction, as they combine low weight with high mechanical strength, thus offering improved fuel efficiency in transportation.
plastic fillers...