The invention discloses a degradation device and method for landfill
leachate based on a
microbial fuel cell-Fenton
system, wherein the degradation device comprises: a left side chamber and a right side chamber, which are separated by a
proton exchange membrane, wherein the left side chamber is an
anode chamber of an electro-Fenton
system, the right side chamber is a
cathode chamber of the electro-Fenton
system, and the left side chamber is a
cathode chamber of the electro-Fenton system, a
microbial fuel cell is arranged in the left side chamber, and
voltage is provided for the electro-Fentonsystem under the action of microorganisms; an
anode electrode, which is arranged in the left side chamber; two groups of first
cathode electrodes and the one group of second cathode electrodes, whichare arranged in the right side cavity at intervals, wherein one group of first cathode electrodes is connected with the
anode electrodes through a first
external circuit, and the other group of firstcathode electrodes is connected with the second cathode electrodes through a second
external circuit; and afirst resistance box and a second resistance box. According to the invention, the
microbial fuel cell and the electro-Fenton system are coupled, and the method has the characteristics of efficient degradation, energy saving and no secondary
pollution.