▎ 摘　　要

NOVELTY - Treating copper disodium ethylenediaminetetraacetate (Cu-EDTA) heavy metal complex wastewater involves preparing a barium titanate/graphene composite piezoelectric material, adjusting the pH of Cu-EDTA heavy metal complex wastewater to 3~6, adding the composite piezoelectric material to a concentration of 1~3 g/L. The solution is subjected to pressure electrochemical treatment in a trough ultrasonic method, the ultrasonic power is 50 to 100 W, the frequency is 20 to 50 kHz, and the ultrasonic time is 2 to 6 h. The solution after the reaction is placed in a shaker and shaken for adsorption, and the treatment time is 2 to 5 hours, that is, the treatment of the Cu-EDTA heavy metal complex wastewater is completed. USE - Method for treating copper disodium ethylenediaminetetraacetate heavy metal complex wastewater. ADVANTAGE - The method enables to treat copper disodium ethylenediaminetetraacetate heavy metal complex wastewater, which couples the piezoelectric effect with the chemical process, couples the functions of adsorption and electric desorption, which breaks the current situation that the traditional heavy metal wastewater treatment method has high cost, complicated process, serious secondary pollution, and needs secondary recovery treatment, provides effective removal of ethylenediaminetetraacetate and the efficient recovery of copper ions have solved the shortcomings of traditional technology, and is efficient processing technology, which provides a development direction for the development of water treatment technology.