SU1191863A1 - Device for purifying natural and industrial sewage - Google Patents

Abstract

A DEVICE FOR CLEANING NATURAL AND INDUSTRIAL WASTE WATER, comprising a housing with a flotation chamber, inlet and branch pipes. The treated fluid and the inlet distribution chamber, which is different in that, in order to increase the degree of water purification and reduce the cost of its treatment, the inlet distribution chamber is made in the form of a truncated inverse truncated cone. - pre-air mixture with nozzles located radially, obliquely I upward and directed to the walls of the cylinder. (L

Description

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The invention relates to devices for the purification of natural and industrial wastewater and may find application in the field of drinking and drinking, industrial water supply and purification of industrial wastewater.

The aim of the invention is to increase the efficiency of water purification and reduce the cost of its treatment.

 FIG. 1 shows the device. in, longitudinal section; in FIG. 2, node A in FIG.

The device for the purification of natural and industrial wastewater consists of the housing G, the flotation chamber 2, the inlet pipes 3 and the outlet 4 for the cleaned and treated water,. the foam assembly 5 and the inlet distribution chamber, which is filled in the form of a vortex factor .6, the upper part of which is provided coaxially. an installed hollow cylinder 7 with a height equal to 1/3 of the height of the reactor, and in the lower part of the reactor 6 there is a pipe 8 for the supply of lime milk and a pipe 9 for soda supply. Nozzles 3, 8- and 9 are installed tangentially to the reactor casing 6. At the bottom of the cylinder 7 is placed the o-shaped distributor 10 of the air-air mixture with nozzles 11, directed obliquely upwards to the walls of the C1-busbar. The reactor 6 in the lower part is filled with a contact mass of 12. In addition, the device is equipped with discharge lines 13 and 14.

The device works as follows.

Clean, water, lime, soda, water / air mixture is fed through special nozzles 3.8 and 9 into a vortex reactor, which serves as the input chamber of the device. At the same time, on the suspended particles of the contact mass 12, the calcium carbonate is rapidly and sufficiently completely separated. as a solid rounded white grains. The enlarged contact mass with a size of 1.5-2.0 mm is periodically unloaded through the pipeline 13 of the vortex reactor 6.. The loading of a new portion of the contact mass 12 takes place from the top after turning off the device. In addition to calcium carbonate, magnesium hydroxide is also released from water. Magnesium hydroxide and suspended solids not detained by the contact mass together with air microbubbles impinging on them, rise to the upper part of the device at a speed of 2.5 mm / s in the vortex flow. The hollow cylinder 7 eliminates the vortex flows of the water-air mixture that are formed when it passes through the distributor nozzle and the water to be purified that is released from the vortex reactor. A foam layer is formed on the surface of the water, consisting mainly of magnesium hydroxide. Foam collection is carried out with the help of a rotating scraper of the suction tool - 5. Foam is collected in a pocket and taken to the dewatering facilities. It is lightened everywhere. It passes under the annular hanging wall 15 and enters the tray, from which the consumer is discharged through pipe 4.

. The proposed device can be used not only to soften low-content natural and waste waters, but also to purify water from oil products and lightly erupting suspended solids. In this case, the entrance chamber is released from the contact mass, as a result of which it performs the functions of the vortex mixer.

Depending on the performance required, the device may be equipped with several

entrance chambers.

Claims (1)

DEVICE FOR CLEANING NATURAL AND INDUSTRIAL WASTE A water containing a housing with a flotation chamber, nozzles for supplying and discharging the processed fluid and an inlet distribution chamber, characterized in that, with the aim of increasing the degree of water purification and reducing the cost of its treatment, the inlet distribution chamber is made in the form of a reverse truncated cone. to its upper edge of the cylinder, which has an annular, air-air mixture distributor with nozzles located radially, obliquely upward and directed towards the cylinder walls. >