▎ 摘　　要

NOVELTY - Electrocatalytic oxidation coupled multi-media biological slow filter includes, from top to bottom, a three-dimensional mixed particle electrode electrocatalytic oxidation and biological slow filtration coupling area (4), volcanic rock filter area (11), modified zeolite filter material area (12), quartz sand filter material area (13) and clean water area (16). USE - Electrocatalytic oxidation coupled multi-media biological slow filter used for treating rural micro-polluted cellar water or micro-polluted water with the organic matters difficult to be biodegraded. ADVANTAGE - Electrocatalytic oxidation coupling multi-medium biological slow filter effectively solves the problems that the traditional biological slow filter effluent has poor water quality stability, easily causes pollutant penetration, is not effectively remove organic matters difficult to biodegrade, total phosphorus and the like through the synergistic effect of the electrocatalytic oxidation and biological slow filter coupling area, volcanic filter material area, modified zeolite filter material area and quartz sand filter material area of the three-dimensional mixed particle electrode, enhances the water quality safety and improves the effluent quality. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: (1) Water treatment system has high-level water tank connected in sequence by water paths, an electrocatalytic oxidation coupled multi-media biological slow filter tank and a membrane separation-ultraviolet disinfection tank. (2) Water treatment method involves adopting the electrocatalytic oxidation coupling multi-media biological slow filter, direct current power supply is used to supply power to the coupling region of electrocatalytic oxidation and biological slow filtration of the three-dimensional hybrid particle electrode, water to be treated passes through the three-dimensional mixed particle electrode electrocatalytic oxidation and biological slow filtration coupling area in turn, volcanic rock filter material area, modified zeolite filter material area, quartz sand filter material area and clean water area. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic diagram of the three-dimensional mixed particle electrode electrocatalytic oxidation coupled with multi-media biological slow filtration integrated water treatment system. Biological slow filter coupling area (4) Volcanic rock filter area (11) Modified zeolite filter material area (12) Quartz sand filter material area (13) Clean water area (16)