三种固相吸附剂对水中双酚A的吸附解吸附比较

Comparing the adsorption and desorption ability for three kinds of solid adsorbent for bisphenol A in water

目的对活性炭、GDX-502、XAD-2三种固相吸附剂对水中双酚A的吸附解吸附进行比较。方法考察了吸附能力、解吸附回收率、吸附容量等因素。结果 GDX-502吸附容量较大,1.25g GDX-502对500 ml 0.4 mg/ml双酚A吸附量达到97.8%,解吸附回收率101.4%。结论 GDX-502对水中双酚A吸附解吸附能力较好,价格便宜,可以用于对水中双酚A的吸附富集和回收再利用。

Objective To compare the adsorption and desorption ability of activated carbon,GDX-502,XAD-2 for bisphenol A in water.Methods The adsorption and desorption ability,adsorption capacity and other factors were investigated.Results The adsorption capacity of GDX-502 is larger.The adsorption capacity of 1.25 g GDX502 is 97.8% for 500 ml 0.4 mg / ml BPA.The rate of recovery is 101.4%.Conclucion The adsorption and desorption ability of GDX-502 on bisphenol A in water is better,and the price is cheaper.It can be used for adsorption and recycling bisphenol A in water.