Photo-catalytic synergistic magnetic separation sewage treatment device and method

Abstract

The invention discloses a photo-catalytic synergistic magnetic separation sewage treatment device and method. The photo-catalytic synergistic magnetic separation sewage treatment method comprises photo-catalytic reaction, micro-flocculation, disk magnetic separation, magnetic medium circulation and the like; an ultraviolet lamp group is arranged inside a photo-catalytic reactor; sewage enters froma water inlet pipe of the reactor; a magnetic photo-catalyst reacts with pollutants in the sewage under the irradiation of ultraviolet light and enters a micro-flocculation pool after photo-catalyticreaction, so that impurities in wastewater are attached to the surface of a magnetic medium and are removed by a fixed slag scraping device under the action of the magnetic force of a disk drive, andthe water purifying purpose is achieved. The photo-catalytic synergistic magnetic separation sewage treatment device and method disclosed by the invention have the benefits that the pollutants in thesewage are effectively removed under the actions of photo-catalysis, flocculation, a magnetic field and the like; the magnetic photo-catalyst can also be recovered and has a wide market application prospect; the magnetic medium, namely 'laterite', can achieve the purpose of treating wastes with wastes; the fixed slag scraping device is adopted for removing slag and has the advantages that the cost is low, a magnetic disk selects a permanent Rufe Boron magnet with extremely-high magnetic property, and the like compared with a traditional slag discharge device.

Description

technical field [0001] The invention relates to sewage treatment, in particular to a photocatalytic cooperative magnetic separation sewage treatment device and method. Background technique [0002] With the development of industry and economy, a large amount of discharged water continuously enters the environment, which contains toxic and harmful substances that are difficult to biodegrade, which brings great harm to industrial and agricultural production, people's life and human health. How to effectively dispose of these polluted water has become a hot spot in the field of environment. At present, adsorption, ultraviolet oxidation, ozone oxidation, chemical degradation, biodegradation and other technologies are usually used for treatment. However, in the conventional water treatment methods, the physicochemical method has the disadvantages of complex process flow, high cost, difficult regeneration of adsorbent, incomplete degradation, and easy generation of secondary poll...

AI Technical Summary

Problems solved by technology

However, in the conventional water treatment methods, the physicochemical method has the disadvantages of complex process flow, high cost, difficult regeneration of adsorbent, incomplete degradation, and easy to produce secondary pollution; The effect of screening high-efficiency strains for degradation is unstable and the production cycle is long; oxidation methods such as ozone and hydrogen peroxide are not efficient in removing these harmful substances, and easily produce more toxic intermediate products

Therefore, these technologies have not been widely used in the treatment of discharged water, especially industrial wastewater containing toxic and harmful substances that are difficult to biodegrade.

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