Experimental study on synergistic treatment of copper ion and methylene blue wastewater with attapulgite composite materials
A new type of chitosan-cellulose-attapulgite composite aerogel material was prepared,which has an ideal removal effect on copper containing wastewater,under the optimal condition,the removal ratio can reach up to 85%.The adsorbed copper ions were immobilized on the aerogel materials to obtain copper loaded attapulgite based composite catalytic materials,realizing the recycling and sequential utilization of materials.The catalytic material has an ideal effect on treating methylene blue,with a removal ratio of 99.6%under the optimal conditions,in addition,this material still maintains a high treatment capacity in the treatment of compound wastewater.The aerogel materials before and after adsorption were tested and analyzed by SEM,FTIR,XRD and TG.The results showed that the materials had stable properties,high porosity,and copper could be uniformly loaded on the aerogel materials after immobilization.This study can provide new ideas for the treatment of composite polluted wastewater containing heavy metals and re-calcitrant organic compounds.
attapulgitecellulosechitosanadsorptioncopper iondegradationmethylene blue
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