| 摘要 |
<p>Hardening of distilled water, partic. the distillate from desalination of sea water or brackish water, is effected by gasifying the distillate with CO2 produced by acidifying raw water and subsequently neutralising the CO2-contng. water with calcium and/or magnesium compounds, pref. to the stage where all aggressive CO2 is removed.</p> |
