Microbial electrolytic tank-anaerobic ammonia oxidation-Fenton combined treatment device and treatment method for treating kitchen wastewater

The invention discloses a microbial electrolysis cell anaerobic ammonia oxidation Fenton combined treatment device and treatment method for treating kitchen wastewater. The device is composed of a CSTR anaerobic zone, an anaerobic ammonia oxidation zone, a Fenton oxidation zone and a membrane advanced treatment zone. An anode electrode I is arranged in the CSTR anaerobic zone, the anaerobic ammonia oxidation zone is composed of a front aeration zone with a built-in aeration head and a main reaction zone with an anode electrode II, a cathode electrode III, an aeration head and additional Fe are arranged in the Fenton oxidation zone, and the anode electrode and the cathode electrode are connected with a stabilized voltage supply through an external circuit. Inlet water sequentially passes through the CSTR anaerobic zone, the anaerobic ammonia oxidation zone, the Fenton oxidation zone and the membrane advanced treatment zone to be treated and then is discharged after reaching the standard or recycled in a f