用麦饭石净化重金属废水的研究

Application of Marfan Stone to Purification of Heavy Metals Containing Wastewater

研究了麦饭石对Cu^(2+)、Zn^(2+)和Cd^(2+) 3种重金属离子的吸附作用,及其在工业废水处理中应用的可行性。结果表明,麦饭石对含重金属废水具有较强净化作用。在中性弱碱性条件下(pH7～8),使用Ca型,灼烧0.5h的麦饭石颗粒作吸附剂,净化效果较好。通过动态吸附实验,为麦饭石在工业废水处理中应用提供了基础资料。

Adsorption of heavy metals such as Cu2+, Zn2+ and Cd2+ from aqueous solution and wastewater by Marfan stone has been studied. The result showed that Marfan stone possessed strong adsorbing properties to heavy metals, and the efficiency of purification was better under the condition of pH 7.0-8.0, using Ca-Marfan stone scorched for 0.5h. Dynamic experiment showed that the application of Marfan stone to purifying heavy metals from water was feasible.