利用废报纸合成树脂并提取废水中的铜离子

Synthesis of chelating resins from used newspaper and its application to absorb copper ion in waste water

以废旧报纸作为纤维素原料 ,合成螯合树脂 ,用以提取废水中的铜离子。为了提高螯合树脂对重金属离子的提取率 ,在螯合树脂上引入乙酰乙酸基 ,并对其吸附水溶液中铜离子的能力进行了研究。结果表明所合成的螯合树脂对铜离子有良好的吸附能力 ,可以重复利用多次 ,在同等条件下 ,重复使用的提取率均不低于 85 %

We choose the used mewspaper as cellulose raw material to synthesize chelating complex resin.This resin is employed to treat waste water, absorbing copper ion. In order to increase its extractability, we induct the group of acetoacetate to cellulose. Experiment demonstrates its promising copper ion absorbability. It is reusable for several times, with an absorption ratio no less than 85% under the same condition.