Inhibition efficiency of scale formation by chemical additives

• Published in: Desalination Vol. 74; no. 1/3; pp. 355 - 361
• Main Authors: Linnikov, O D, Podbereznyi, V L, Belyshev, MA, Balakin, V M, Talankin, V S
• Format: Journal Article
• Language: English
• Published: 01.01.1989
• ISSN: 0011-9164
• DOI: 10.1016/0011-9164(89)85062-3

Laboratory tests were performed on a range of scale-preventing additives (phosphonates, polyelectrolytes) using a test rig which enabled the processes of scale deposition to be examined separately for calcium carbonate, calcium sulphate and magnesium hydroxide scales. The relative effectiveness of the various additives with respect to different types of scale was assessed for the pure component solutions to differentiate between their respective modes of action in a multi-component system such as sea water. While most inhibitors were capable of preventing the deposition of calcium carbonate and calcium sulphate, there was little or no effect on magnesium hydroxide scale formation.