【摘要】 提出了采用含碳酸钙硅藻土处理废水中Cu2 + 、Cr3 + 、Pb2 + 和Zn2 + 4种重金属离子的新方法 ,试验结果表明 ,碳酸钙含量约为 35 %的硅藻土是处理含重金属废水的一种很好的吸附剂。在静态实验条件下 ,吸附容量为 3.5～4mmol/g。更多还原

【Abstract】 A new method of the waste water treatment that four heavy metal ions Cu 2+ ?Cr 3+ ?Pb 2+ and Zn 2+ are treated by diatomaceous earth containing calcium carbonate is introduced. The experiment shows that the diatomaceous earth with calcium carbonate content around 35% is an effective adsorbent for treating heavy metal ions in waste water. Under static condition in lab,the adsorption capacity is 3.5～4mmol/g.更多还原