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Meeting Tomorrow’s Challenges in Particle Separation with Coagulation
Summary
This water treatment review covers the use of chemical coagulation as a versatile method for removing both particulate and dissolved contaminants in water supply and wastewater treatment. The paper discusses advances in coagulant chemistry, process optimization, and applications in complex treatment trains. Coagulation is also one of the main approaches studied for microplastic removal from water.
Chemical coagulation is a robust and efficient method used in both water supply and wastewater treatment mainly for particle removal, but also for removal of dissolved components. The use of the coagulation process in various process combinations in modern treatment plants generates not only possibilities but also challenges, especially regarding the downstream processes of recovery and reuse of valuable material from waste streams. Potential process combinations together with efficient solutions to meet the above challenges are presented. The potential role of coagulation in managing emerging micropollutants and microplastics is also discussed.