Radially combined multistage ozone air floatation device

Abstract

The invention relates to a radially combined multistage ozone air floatation device. The radially combined multistage ozone air floatation device comprises an inner barrel cylinder and an outer barrel cylinder which share the bottom surface, wherein an annular water collecting pipe is arranged at the bottom of the inner barrel cylinder and the outer barrel cylinder, water collecting holes formed in the annular water collecting pipe are distributed in the inner barrel cylinder and the outer barrel cylinder respectively, the inner barrel cylinder is sequentially a contact zone and a separation zone from the bottom to the top, the top of the inner barrel cylinder is open, the top of the outer barrel cylinder is closed, a slag scraping device is arranged in front of the top of the inner barrel cylinder and the outer barrel cylinder, an ozone oxidation zone is arranged between the inner barrel cylinder and the outer barrel cylinder, and an aeration disc is arranged at the bottom of the ozone oxidation zone. The radially combined multistage ozone air floatation device has the advantages that an ozone air floatation unit and an ozone oxidation unit are radially combined, treatment device is optimized, floor area of equipment is reduced, and low energy consumption deslagging is completed by virtue of rise and fall of liquid level; and by virtue of combination of a deslagging device and an overflow deslagging way, scum is thoroughly eliminated, and treatment efficiency of the multistage ozone air floatation device is improved.

Description

technical field [0001] The invention belongs to the technical field of sewage advanced treatment, in particular to a radially combined multi-stage ozone flotation device. Background technique [0002] As an advanced treatment process for urban sewage, the multi-stage ozone flotation process organically combines ozone flotation technology and ozone oxidation technology, and simultaneously completes solid-liquid separation, advanced oxidation, color removal, smelling, and disinfection in one operating unit. At the same time, it solves the problem of energy waste caused by the limited dissolved gas rate, and ensures that enough ozone is added. The traditional solution is to set up an independent ozone oxidation unit under the ozone flotation unit to realize the vertical organic combination of the two units. Because it is an upper and lower combination of two units and connected by an inverted U-shaped tube, the equipment is often very high and has a large radius. The equipmen...

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Problems solved by technology

[0003] In order to overcome the shortcomings of the above-mentioned prior art, the purpose of the present invention is to provide a radially combined multi-stage ozone flotation device, which can save the floor space of the device and effectively remove the scum at the top; not only can save the floor space, Simplifying process equipment can also solve problems such as scum adhesion and improve the treatment efficiency of multi-stage ozone air flotation process

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