新型粉体材料(SPM)在饮用水处理中锌离子(Zn2+)浓度降低工艺

Technological Process of Zn^(2+) Ion Reduction from Drinking Water by Special Powder Material(SPM) Treatment

新型粉体材料(SPM)为新型净水材料,用作深度净化饮用水,但经过SPM处理后的饮用水中Zn2+浓度有时偏高。该文选取麦饭石原石、麦饭石陶粒、电气石原石、电气石陶粒、木鱼石陶粒等吸附材料对饮用水中Zn2+的吸附性能进行研究,考察了吸附时间、温度、投加量、pH值等条件对吸附效果的影响,并探讨各吸附材料吸附Zn2+的动力学和热力学性质。选取吸附效果比较好的电气石陶粒1#做动态试验,探讨床层高度和流速对穿透时间的影响。

As a new kind of water purified material, special powder material （SPM） is used to purify drinking water. After drinking water treated by SPM, the water quality may be improved but Zn2＋ concentration is a little higher. In order to remove Zn^2＋, medical stone, medical stone ceramsite, tourmaline, woody-fish stone and other adsorption materials were investigated. In this paper, the parameters which impact on the removal ratio, such as absorb time, temperature, dosage, pH value and so on were studied. Thermodynamic property and kinetic property of adsorption were also investigated. Finally, the most efficacious sorbent tourmaline 1# was selected to do the dynamic test. The influence of the velocity and bed height on the penetration times was discussed.