SU1057435A1 - Apparatus for purifying effluents - Google Patents

Abstract

A DEVICE FOR CLEANING WASTE WATER, containing the inlet pipe of the initial fluid, the aerotank tank divided by partitions into an aeration chamber with a vertical channel and the aerator above it, a side chamber on the inlet side and a lower chamber communicating a settling tank through the overflow with the aerotank and a discharge pipe waste water, which is so that, in order to intensify the process of cleaning, aeration, circulation and its regulation, regardless of the cessation of water supply, it is equipped with an intermediate chamber, zmeschennoy between the aeration chamber and settling tank ,, vertical. the channel is located below the level of the treated liquid, the aerator is made of a cavitation rotor, to the lower outer surface of which the impeller of the axial pump is attached, and overflow windows with shut-off and control valves are made in the upper part of the separation walls. gd if.

Description

This invention relates to the biological treatment of wastewater in small settlements.

A device for wastewater treatment is known, in which a settling chamber is located on the side of the aero chamber behind the dividing wall, which determines the overflow height. On the other side of the aeration chamber, the side chamber is separated by a partition on the inlet side. A channel is expanded in the aeration chamber, the lower open end of which extends into the lower chamber, located under the aeration chamber and communicating with the lateral on the inlet side and the settling chamber. At the upper end of the vertical channel, a paddle wheel is installed, during rotation of which a water flow rising along the vertical channel is formed, entering from the bottom into the channel in the form of two streams coming from the side and settling chambers through the lower chamber. The water flowing down the vertical channel into the aeration chamber through the dividing walls flows back into the side chamber on the inlet side and the settling chamber TJ,

However, this device does not regulate the flow of water to the side and settling chambers. In addition, in small objects with a significant coefficient of daily irregularity and high amplitude of fluctuations of the water level in the aeration tank, the impeller does not provide optimal introduction of air into the liquid and the necessary circulation of water. In this case, the combined operation of the paddle aerator for circulating water in the aeration tank and supplying water to the sump reduces the amount of injected oxygen in the aeration tank. With this work, the circulation of water in the aeration tank is reduced.

The purpose of the invention is to intensify the cleaning process, providing aeration, circulation and its regulation regardless of the cessation of the water supply.

This goal is achieved. A wastewater treatment device containing a liquid inlet pipe, an aero tank reservoir divided by partitions into an aeration chamber with a vertical channel and an aerator above it, a side chamber on the inlet side and a lower chamber, as well as a sump and a discharge pipe wastewater, equipped with an intermediate chamber, located between the aeration chamber and the sump, - the vertical channel is located below the level of the treated liquid, the aerator is made of a cavitation rotor, An impeller of an axial pump is attached to the lower outer surface of which, and overflow windows with shut-off and control valves are made in the upper part of the dividing walls.

FIG. 1 shows a wastewater treatment device, longitudinal section; in fig. 2 - the same in terms of; on fig.Z - site installation of cavitation aerator at the upper open end of the vertical channel.

The device contains an aeration tank 1 with an aeration chamber 2 consisting of a lateral cylindrical surface 3 and a bottom 4, a settling tank 5, a junction b between the aero tank 1 and a settling tank 5, the inlet 7 of the source water, the bypass 8, the outlet 9 of the purified liquid with a combined stream 10 and a channel 11 return silt. Aerotank 1 has a side cylindrical surface 3 and a bottom 4 divided into aeration chamber 2, side chamber 12 on the inlet side 7, side chamber 13 located between aeration chamber 2 and sump 5, and lower chamber 14. Chambers 12, 13 and 14 are combined in outer zone of the aerotank 1. The inner aeration chamber 2 of the aerotank 1 has in the bottom 4 a vertical channel 15 in the form of a guide tube with upper and lower open ends 16 and 17. The lower end 17 goes into the lower chamber 14. At the upper open end 16, a cavitation aerator is installed 18, on the bottom surface 19 of rotor 20 which is attached an axial pump impeller 21. The aeration chamber 2 and 8 are provided with bypass windows 22 and 23 with the vanes 24. Aerator 18 is attached to horizontal channel bar 25.

The device works as follows.

Through inlet 7, the source water is supplied to the aeration tank 1, from where the sludge mixture bypass 8 enters the settling tank 5, where the purified water is removed through the outlet 9, and return sludge returns to the aeration tank 1. In aeration tank 1, a cavitation aerator 18 with paddle crease of the axial pump 21 is provided internal circulation of fluid between the aeration chamber 2 and the outer zone of the chamber 14. Shieber 24 regulates the circulation of water in the aeration tank 1 and the flow of water through the bypass 8 to the secondary clarifier 5.

The introduction of the side chamber 13, dispensed between the aeration chamber 2 and the sump 5, increases the introduction of air and the circulation of water between the internal aeration chamber and the outer zone of the aerogenic. This ensures the intensification of the wastewater treatment process. Device

the upper open end of the vertical channel in the middle water column of the aerotank with a cavitation aerator mounted at the top, equipped with an impeller of an axial pump, provide aeration of the fluid outside

depending on the progress of water supply to the building. To regulate the circulation of water in the aeration tank and the transfer of water, overflow windows with shut-off and regulator 5 are introduced into the sump; quad devices.

Claims (1)

DEVICE FOR WASTE WATER TREATMENT, comprising a source fluid inlet pipe, an aeration tank separated by partitions into an aeration chamber with a vertical channel and an aerator above it, a side chamber on the inlet side and a lower chamber communicating through the overflow with the aeration tank, the sludge and the exhaust pipe wastewater, characterized in that, in order to intensify the process of purification, aeration, circulation and its regulation, regardless of the cessation of water supply, it is equipped with an intermediate chamber placed between the aeration chamber and the sump, the vertical channel is located below the level of the liquid being treated, the aerator is made of a cavitation rotor, the impeller of the axial pump is attached to the lower outer surface, and overflow windows with shut-off and control valves are made in the upper part of the separation walls. figure 1