In-situ degradation device and method for high-concentration refractory pollutants

The in-situ degradation device comprises a degradation chamber, a cathode, an anode and a gas chamber, and the cathode and the anode are connected with a direct-current stabilized power supply; the cathode is a gas diffusion electrode, one side of the cathode is connected with the gas chamber, and the other side of the cathode is communicated with the degradation chamber; the anode is arranged in the degradation chamber, a sponge loaded with a catalyst is also placed in the degradation chamber, an outlet is formed in the upper part of the degradation chamber, and the air chamber is provided with an inlet. According to the in-situ degradation method and device, secondary pollution cannot be generated, the degradation efficiency is high, and the degradation capacity of high-concentration refractory pollutants within 25 min reaches 90% or above. 本发明公开了一种高浓度难降解污染物的原位降解装置，其包括降解室、阴极、阳极和气室，阴极和阳极连接直流稳压电源；所述阴极为气体扩散电极，阴极的一侧与气室连接，阴极另一侧与降解室相连通；所述阳极设于降解室内，所述降解室内还放置有负载催化剂的海绵，所述降解室上方设有出口，所述气室设有入口。本发明提出的原位降解方法和装置不会产生二次污染，并且降