【摘要】 工业废水中有许多重金属离子如Cu2+等,对环境和人体有巨大的危害,在这些废水排入河流、湖泊之前需要进行一系列的处理,使之不会污染环境和危害人体健康。本文研究了改性天然微孔材料——硅藻土吸附模拟废水中重金属离子Cu2+的吸附作用及影响因素。实验研究表明:吸附过程中硅藻土用量、吸附时间、溶液pH值,是影响硅藻土对重金属离子Cu2+吸附去除的主要因素。其中,pH值是影响吸附的最主要的因素。最佳吸附条件:时间60min,pH值4,用土量0.6g。更多还原

【Abstract】 In thesis,studied the natural micropore materials-diatomite’s ability to absorb the heavy metal ions Cu2+ and its related condition.From the experiments results we can conclude that the amount of diatomite,the absorption time and the pH value of the solution are the main conditions that can affect the heavy metal absorption ability of diatomite.Of all the conditions the pH value of the solution is most important of all in the heavy metal wastewater treatment.Optimize absorption condition:time 60min,pH 4,diatomite’s weight 0.6g.更多还原