常温铁氧体法处理电解锌厂废水试验研究

Experiment Study on Treatment of Wastewater from Zinc Electrolysis Plant by Ambient Temperature Ferrite Process

用常温铁氧体法对山西某电解锌厂废水进行了处理。经试验研究确定了处理该废水的工艺条件:Fe2+/M2+10,添加剂用量1.4g/L,M3+/M2+1.6,Zn2+/Cu2+33.3(废水初始Zn2+/Cu2+),所得磁性产物的饱和磁化率为45.9emu/g,回收率为85.0%。试验中还发现,金属离子的半径对铁氧体的生成有一定的影响。

The effluent of a zinc electrolysis plant in Shanxi Province was treated by ambient temperature ferrite process. Experimental results showed that the optimum condition of treating effluent was Fe2+/M2+ 10, dosage of additive 1.4g/L, M3+/M2+ 1.6, initial Zn2+/Cu2+ 33.3.The saturation magnetization of magnetic precipitate was 45.9 emu/g, and metal recovery was 85.0%. The experimental results also indicated that the radius of metal ion had quite an effect on formation of ferrite.