改性聚丙烯腈纤维对电镀废水中重金属离子吸附的研究

为了有效地处理含重金属离子的废水,制备了改性聚丙烯腈纤维吸附剂.在静态条件下,研究了改性聚丙烯腈纤维对重金属离子Cu2 ,Ni2 ,Zn2 的吸附效果及吸附条件.含Cu2 ,Ni2 ,Zn2 的电镀废水经改性聚丙烯腈纤维吸附后,废水中Cu2 ,Ni2 ,Zn2 的含量显著低于国家排放标准,获得了满意的结果.

Adsorption of Heavy Metallic Ions in Electroplating Wastewater by Modified Acrylic Fiber

Modified acrylic fiber adsorbent was prepared for the efficient treatment of the electroplating wastewater containing heavy metallic ions. Thus the adsorption effect and conditions of the heavy metallic ions such as Cu~(2+), Ni~(2+), and Zn~(2+) by the modified acrylic fiber at static state were studied. It was found that after adsorption by the modified acrylic fiber, the concentrations of the Cu~(2+), Ni~(2+), and Zn~(2+) in the electroplating wastewater were markedly lower than the corresponding national discharge standards, which indicates that the modified acrylic fiber could be used to realize satisfactory and efficient treatment of the electroplating wastewater containing heavy metallic ions.