| 摘要 |
<p>Processes for the desalination of saline water, especially seawater, which contains hardness ions (e.g. Ca<2><+> and Mg<2><+>) and transition metal corrosion ions (e.g. Fe<3><+>), and in which an organic polymer antiscalant (e.g. a low molecular weight maleic acid-acrylamide-styrene terpolymer) is being used to control alkaline earth hardness, have been improved by adding a cheating agent to the saline water before, or at the same time as, adding the antiscalant. Typical chelating agents which can be used are citric acid, gluconic acid and hydroxyethylidenediphosphonic acid.</p> |
