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AssigneeShenzhen Polytechnic
InventorsLei WANG, Beidou XI, Shaofeng LI, Yangyang WANG, Xiaoshu WANG, Yan SHAO, Jiancong LIU, Jin LIU, Jinsheng WANG
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It discloses an apparatus and a method for treating oil-containing sludge, wherein, a pressurized chamber is the main structure, and a mixture of carbonic acid in water, iron-rich biochar and polyaspartic acid is sprayed in pulses by a nano-aeration device inside the pressurized chamber. The carbonic acid is decomposed into supercritical CO2 by the nano-aeration device, reducing the viscosity of petroleum hydrocarbons in the oil-containing sludge synergistically with the polyaspartic acid. The iron-rich biochar promotes dissolution of petroleum hydrocarbons from the oil-containing sludge, thus enhancing the drive-off ratio of oil phase, and improving the decomposition of residual oil organics. In the treatment of oil-containing sludge according to the present invention, high temperature retting of the separated sludge with bacterial bran increases the degree of humification of the sludge, the treated sludge contains petroleum hydrocarbon below 1%, and can be directly available to plants.
An apparatus for treating oil-containing sludge, characterized in that, the apparatus comprises pressurized chamber (3) in which electric field is connected, said electric field comprises cathodic electrode (7), anodic electrode (8) and external power supply (6), and said cathodic electrode (7) and said anodic electrode (8) are arranged inside said pressurized chamber (3), and are connected by external power supply (6) outside said pressurized chamber (3).
Dependencies are inferred from the claim text.