Refractory wastewater discharged from industrial production activities,which is characterized by high concentration,high toxicity,and poor biodegradability,endangers human health and destroys the ecological environment.The three-dimensional(3D)electrode system is filled...MORE Refractory wastewater discharged from industrial production activities,which is characterized by high concentration,high toxicity,and poor biodegradability,endangers human health and destroys the ecological environment.The three-dimensional(3D)electrode system is filled with particle electrodes in a traditional two-dimen...