Study on the Adsorption Efficiency of Modified Polystyrene Resin for Heavy Metal Wastewater
The ultra-high crosslinked polystyrene resin JL was synthesized from chloromethylated polystyrene res-in(chlorine sphere)and modified with salicylic acid to obtain the modified polystyrene resin JL-BHA.The infra-red spectrum of JL-BHA was analyzed,and the adsorption efficiency of JL-BHA dosage,temperature,and initial concentration of heavy metal Cu2+on heavy metal wastewater was studied.The results showed that the synthesis of JL-BHA was successful.When the dosage of JL-BHA increased from 0.01 g to 0.1 g,the removal of Cu2+first increased and then stabilized,and the adsorption capacity of Cu2+gradually decreased.The highest removal rate of Cu2+was 84.58%.As the initial concentration of Cu2+increased,the adsorption capacity of JL-BHA for Cu2+also gradually increased,but the removal rate of Cu2+gradually decreased,and the effect of temperature on Cu2+re-moval was relatively small.
modified polystyrene resinheavy metal wastewaterCu2+adsorption
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