Purification system and purification method for VOCs waste gas containing high-concentration aromatic hydrocarbons

The invention relates to the technical field of VOCs waste gas purification, and discloses a VOCs waste gas purification system containing high-concentration aromatic hydrocarbons and a purification method.The purification system comprises a washing tower, a first-stage biological deodorization device, a second-stage biological deodorization device, an advanced treatment device, a draught fan, an exhaust funnel and an activation energy generation device which are sequentially connected; the washing tower spray water circulation pipeline is connected with a pretreatment water tank and a first activation catalysis device, the first-stage biological deodorization device spray water circulation pipeline is connected with a first-stage water tank and a second activation catalysis device, and the second-stage biological deodorization device spray water circulation pipeline is connected with a second-stage water tank and a third activation catalysis device. The activation energy generating device is respectively con