Method for purifying VOCs and co-producing organic nutrient soil through wet electro-catalysis

The invention discloses a method for purifying VOCs (volatile organic compounds) and co-producing organic nutrient soil by wet electro-catalysis, which is characterized in that organic waste gas containing VOCs is introduced into a low-pressure catalysis coupling biological purification device, an electro-catalysis plate is arranged in the low-pressure catalysis coupling biological purification device, and the electro-catalysis plate consists of a substrate layer, a catalysis layer and a microbial layer, the catalytic layer is arranged between the substrate layer and the microbial layer, a plurality of nozzles are arranged above the electro-catalysis plate, VOCs attached to the surface of the electro-catalysis plate can be subjected to electro-catalysis purification through low voltage, spraying liquid sprayed by the nozzles supplements moisture needed by survival of microorganisms on the electro-catalysis plate, the spraying liquid captures VOCs in gas and enables the VOCs to be attached to the electro-catal