RU89516U1 - OZONE CAMERA FOR SEWAGE TREATMENT FROM POLLUTION - Google Patents

Abstract

1. Ozonation chamber for wastewater treatment from pollution, containing a cylindrical body, nozzles for supplying contaminated and removal of treated water, nozzles for input and output of ozone-containing gas, a sparging device, characterized in that the sparging device is made in the form of a screw perforated bellows and is located coaxially to the cylindrical cylindrical body cameras with the possibility of rotation. ! 2. Ozonation chamber for wastewater treatment from pollution according to claim 1, characterized in that the screw perforated bellows is made with the possibility of axial movement.

Description

The utility model relates to wastewater treatment by ozonation and can be used for industrial wastewater treatment in the chemical, engineering, paint and varnish industries.

Known devices for treating wastewater with an ozone-air mixture, for example, a contact chamber for wastewater ozonation (D.A. Krivoshein, P.P. Kukin and others. Engineering protection of surface waters from industrial effluents, Textbook. M: Higher School, 2003 , 344 p., Fig. 54., P. 123). In this device, the contact of the treated water and the ozone-air mixture is ensured by feeding the mixture through perforated or porous tubes located at the bottom of the contact chamber. The disadvantage of such devices is the lack of intensive mixing of the ozone-air mixture and the treated water, which reduces the cleaning efficiency.

A device for the disposal of toxic liquids (AS No. 1100239, C02F 1/78, 1/48, bull. No. 24 dated 06/30/84), which contains a vertical tank with a bottom and a lid, a mechanical turbine injector with a drive, nozzles for the input and output of the treated fluid, ozone-air mixture and removal of sediment, a bubbling device located under the turbine injector, and a pipe in communication with the nozzles of the input and output of the treated fluid. It is equipped with an electromagnet with an adjustable magnitude of the magnetic field and a redox potential sensor installed on a pipeline that communicates the inlet and outlet ports of the fluid to be treated. This device is taken as a prototype.

The disadvantages of the prototype are as follows:

- the rotation of the injector creates intensive mixing of wastewater and the ozone-air mixture only in a limited volume, without covering the entire tank volume with turbulization;

- with significant vertical dimensions of the vessel, the turbulization carried out by the injector is rapidly weakened and in the upper part of the vessel the rise of ozone bubbles occurs only under the influence of Archimedes forces, without stirring, which reduces the cleaning efficiency.

The technical result, the achievement of which is directed by a utility model - improving the efficiency of cleaning.

The technical result is achieved by the fact that in the ozonation chamber containing a cylindrical body, pipes for supplying contaminated and removal of treated water, pipes for inputting and outputting an ozone-air mixture, a bubbling device, it is new that the bubbling device is made in the form of a screw perforated bellows and is located coaxially the cylindrical body of the camera is rotatable.

Screw perforated bellows made with the possibility of axial movement.

The essence of the claimed utility model is illustrated in figure 1.

Here: 1 - housing; 2 - sparging device; 3 - pipe outlet of the ozone-air mixture; 4 - pipe outlet of treated water; 5 - regulatory element; 6 - rear rotation unit; 7 - flushing pipe; 8 - pipe supply of contaminated water; 9 - front rotation unit; 10 - pipe supply ozone-air mixture.

The proposed device is a chamber 1 of a cylindrical shape, in the front bottom of which there is a pipe 8 for supplying contaminated water and a pipe 10 for supplying an ozone-air mixture. The chamber is equipped with a pipe 3 for the removal of ozone-air unreacted gas and a pipe 7 for washing the chamber from the sediment. A bubbler device coaxially installed inside the chamber 1 is made in the form of a screw bellows 2 having perforation over the entire surface, it is movable, rotatable in the front 9 and rear 6 rotation nodes. In addition, the sparging device 2 has the possibility of axial movement, compression or expansion, in the axial direction from the control element 5. The sparging device 2 is driven in rotation from a drive (not shown).

The proposed utility model works as follows. Contaminated water enters the ozonation chamber 1 through the pipe 8 and fills the chamber volume. After filling, the ozone-air mixture begins to be supplied through the pipe 10 with the simultaneous rotation of the screw bellows 2. The ozone-air mixture, passing through the perforation holes of the screw bellows 2, is bubbled into the thickness of the contaminated water and oxidation and decomposition reactions of pollutants occur. The rotation of the screw bellows 2 contributes to the intensification of mass transfer in the entire volume of liquid. The treated water is removed through pipe 4, and part of the unreacted ozone-air mixture is discharged through pipe 3 and returns to the ozone-air line.

Depending on the initial concentration of pollutants, the regulating element 5 can change the step of the screw bellows 2 (compress or expand), which leads to a change (increase or decrease) in the residence time of the liquid being cleaned in the ozonation chamber 1. After a certain time, the chamber is washed with water, which flows through pipe 8, and after washing the chamber and bellows is discharged through pipe 7.

Thus, the proposed utility model allows to increase the efficiency of treatment due to a more complete and intensive saturation of contaminated water with an ozone-air mixture and to regulate the ozonation process.

Claims (2)

1. Ozonation chamber for wastewater treatment from pollution, containing a cylindrical body, nozzles for supplying contaminated and removal of treated water, nozzles for input and output of ozone-containing gas, a sparging device, characterized in that the sparging device is made in the form of a screw perforated bellows and is located coaxially to the cylindrical cylindrical body cameras with the possibility of rotation. 2. Ozonation chamber for wastewater treatment from pollution according to claim 1, characterized in that the screw perforated bellows is made with the possibility of axial movement.