antiscalants – chemicals – waste water treatment in netherlands

antiscalants – chemicals – waste water treatment in netherlands
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  • What types of antiscalants are used in water treatment?
  • Antiscalant Selection Three types of antiscalants based on the chemical composition are used in the water treatment practice: polyphosphates, organophosphonates and other polymeric compounds. Polyphosphates include some of the original scale inhibitors used to prevent calcium carbonate scales and are primarily used in once-through systems.
  • What is an antiscalant in water purification?
  • An antiscalant is a chemical or pre-treatment chemical that prevents the formation of scale, or crystallized mineral salts, commonly used in water purification systems, pipelines and cooling tower applications. Antiscalants are also known as scale inhibitor agents.
  • Can antiscalants be used in RO desalination systems?
  • Applications of antiscalants in RO desalination systems Various antiscalants have been developed and applied in water treatment industries, such as boiler water, cooling water, thermal desalination and membrane industries, to mitigate scaling ( Chaussemier et al., 2015; Darton, 2000; Hasson et al., 2011; Liu et al., 2019; Nowack, 2003 ).
  • Why are antiscalants added to boiler feedwater?
  • Antiscalants are added to boiler feedwater to prevent scale formation on heat transfer surfaces, piping, and other boiler components. Water treatment plants can use antiscalants to maintain filtration. Industrial cooling water systems are susceptible to scale formation due to high temperatures and concentrations of dissolved minerals.