矿井水中硫酸根的去除实验研究  

Study on removal of sulfuric acid radical from mining water

作　　者：程芳琴[1] 霍磊霞[1] 崔莉[1] 杨凤玲[1] 

机构地区：[1]山西大学环境技术研究所,山西太原030006

出　　处：《无机盐工业》2009年第7期51-53,共3页Inorganic Chemicals Industry

摘　　要：采用石灰-聚合氯化铝混凝法、石灰-氯化铝化学沉淀法、电渗析法对矿井水中的硫酸根进行去除实验研究,结果表明:石灰-聚合氯化铝混凝法由于受石灰自身溶度积的影响对硫酸根的去除率不高;石灰-氯化铝化学沉淀法可使硫酸根的去除率达到95%以上,但是易引入杂质离子;采用电渗析法处理矿井水,工艺简单,处理效果好,且不引入杂质离子,是目前比较经济、可行的方法。Lime-polyaluminum chloride （ PAC ） coagulation process, lime-aluminum chloride chemical precipitation, and electrodialysis process were used to remove sulfuric acid radical （SO4^2- ） from mine water. Results showed that： SO4^2- removal rate is low with lime - PAC coagulation process due to the effect of solubility product of lime itself. Although SO4^2- removal rate can reach more than 95% with lime-aluminum chloride chemical precipitation,impurity ions are easily induced. Eleetrodialysis process for mine water treatment has advantage of simple process, better SO4^2- removal effect, and without the introduction of impurity ions. It is a more economical and feasible method presently.

关 键 词：混凝法 化学沉淀法 电渗析法 硫酸根 

分 类 号：TQ125.14[化学工程—无机化工]