Easily-degradable high-concentration industrial wastewater treatment method and system

The invention relates to the field of industrial wastewater treatment, and particularly relates to an easily-degradable high-concentration industrial wastewater treatment method and system. The systemcomprises a pretreatment section, a high-concentration wastewater biochemical treatment device, a magnetic coagulation sedimentation tank and a disinfection tank, wherein magnetic iron powder and activated carbon powder are added into a biological contact oxidation tank of the high-concentration wastewater biochemical treatment device, an aerobic filler and an aeration system are installed, and the concentration of dissolved oxygen in the tank is controlled to be 2-4mg/L. The action of the magnetic iron powder and the activated carbon powder runs through a biological and chemical reaction system, an adsorption micro-electrolysis environment can be formed, a huge specific surface area can be provided for microorganism growth, the sedimentation rate of flocculent sludge is increased, sludgeloss and the occupied are