Deactivated sludge degradation hydraulic cavitation device

Abstract

The invention discloses a deactivated sludge degradation hydraulic cavitation device which comprises a stator and a rotating shaft, wherein a cavitation cavity is formed inside the stator; a water inlet tube and a water outlet tube are arranged on the stator; the rotating shaft is mounted in the stator; one end of the rotating shaft extends outside the stator; the extending end is connected with atransmission device; two wheel discs which are partitioned through a shaft sleeve are arranged on the rotating shaft; the wheel discs are positioned in the cavitation cavity of the stator; cavitationpores are distributed in sides opposite to the inner wall of the cavitation cavity, of the two wheel discs; and the cavitation pores are blind holes. Through a high temperature and high pressure resulted in hydraulic cavitation, chemical bonds among atoms of water molecules and dissolved oxygen molecules in sludge can be broken, then hydroxyl radicals of intense oxidation can be formed, and the purpose of degrading macromolecule organic matters can be achieved. When being adopted to degrade deactivated sludge, the deactivated sludge degradation hydraulic cavitation device is large in treatment capacity, feasible in continuous operation, high in efficiency, free of emission, free of pollution and good environment protection, and has the characteristics of being good in adaptability, easy to control, simple in structure and high in efficiency.

Description

technical field [0001] The invention relates to an environmental protection device for degrading inactivated sludge through hydraulic cavitation, and belongs to the technical field of inactivated sludge degradation. Background technique [0002] Municipal sewage treatment processes are still being applied, including primary treatment, secondary treatment, and advanced treatment, but the most commonly used secondary treatment is the traditional activated sludge method as the core. The activated sludge process mainly uses microorganisms to treat sewage. The air is introduced into the sewage to increase the oxygen content in the sewage, promote the mass reproduction of various microorganisms in the sludge, and effectively remove the macromolecular organic matter in the sludge. In addition, there are improvements to this method, such as the batch activated sludge method, which is highly targeted in treating a large amount of organic matter in wastewater, and reduces the content...

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Problems solved by technology

[0005] However, the current hydraulic cavitation sewage treatment devices on the market basically use Venturi tubes, and the structure of the cavitation nozzle achieves the purpose of cavitation. The above structures all have the problems of low cavitation efficiency, small sewage treatment volume, and low treatment efficiency, so they cannot be applied. In the actual sludge treatment process

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