pqq 30
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Coagulants, such as alum (aluminum sulfate) and ferric chloride, are also employed in sewage treatment. These chemicals assist in the removal of suspended solids, colloidal particles, and turbidity from wastewater. When added to the treatment process, coagulants promote the aggregation of small particles into larger flocs, which can be more easily removed through sedimentation. This process is particularly important in primary treatment phases, where physical separation of solids occurs.
chemical used in sewage treatment plant...
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In recent years, issues surrounding the safety and environmental impact of water purifying chemicals have come to the forefront
. Chlorine, while effective, can form harmful disinfection byproducts when it reacts with organic matter in water. This has led to increased interest in alternative methods of disinfection that minimize these risks. Additionally, the use of biodegradable flocculants and coagulants is being pursued to reduce environmental impact....