ZK-1树脂对对甲基苯胺工业废水的柱吸附研究

选择NDA-150与ZK-01树脂作为吸附剂,以工业对甲基苯胺废水为研究对象,进行了树脂柱吸附废水的研究.工业对甲基苯胺废水中,对甲基苯胺含量为5300mg/L,吸附过程中,流量为1BV/h,温度为303K,NDA-150与ZK-01树脂分别吸附处理废水12BV、19BV时,废水中对甲基苯胺去除率为约98%.实验结果表明,ZK-01树脂吸附处理对甲基苯胺废水能力强于NDA-150,这是由于ZK-01树脂骨架上键联的弱酸基团与氨基生成酸碱络合物的结果.通过分析ZK-1树脂吸附-脱附处理对甲基苯胺废水的稳定性试验与脱附所得回收物质鉴定,ZK-1树脂具有运行稳定与回收物质可利用的特点.

STUDY ON COLUMN ADSORPTION WASTEWATER CONTAINING p-METHYLANILINE ONTO ZK-1 SORBENT

In order to investigate the adsorption ability of resin NDA-150 and ZK-01,wastewater containing p-methylaniline (5300mg/L) was treated with these two adsorbents in column adsorption experiments. The adsorption process was performed with flux of 2BV/h at 303K. Experimental results showed removal efficiency of p-methylaniline in wastewater was 98% when the treated bed volume of NDA-150 and ZK-1 sorbents were 12BV and 19BV, respectively. ZK-1 resin exhibited better adsorption capacity than that of NDA-150 which owned to the formation of complex between polymer-bound acidic groups on ZK-1 resin and the target solutes. By analyzing the ZK-1 resin adsorption-desorption stable test and recovered substance identification, ZK-1 resin has a stable operation and recovery characteristics.