海水淡化水矿化过程研究

利用硫酸溶解石灰石对淡化海水进行矿化处理,研究了pH值、石灰石颗粒粒径和装填高度、淡水流量及反应温度等因素对淡化水矿化效果的影响。试验发现pH值变化对矿化效果的影响最为明显。在一定的填料高度范围内,矿化效果随pH值降低增加显著,随填料高度的增加而增加,随淡水流量的增加而降低,随着温度的升高而升高。在pH值为2.00的实验条件下,矿化后钙离子含量大于300 mg/L。

Mineralization Processes of Desalinated Water by Limestone Dissolution

As a post-treatment process,desalinated water was rematerialized by sulfuric acid dissolution limestone.Influence of factors such as pH,limestone size and loading height,flowrate of desalinated water and reaction temperature on mineralization were studied.It is found that the change of pH affect the mineralization most obviously.In a certain range of packing height,the effect of mineralization decreased distinctly with increasing pH value,increased with the rising of packing height,decreased as the flowrate...