SU1392029A1 - Aerotank - Google Patents

Description

(21) 4164929 / 23-26

(22) 12.22.86

(46) 04/30/88. Bul No. 16. (75) N.G. Bazhenov, G.S.Kucherenko and I.M.Tavartkiladze

(53) 628.356 (088.8)

(56) USSR Author's Certificate No. 875768, cl. C 02 F 3/02, 1980.

I,

(54) AEROTENK

(57) The invention relates to the treatment of water, industrial or domestic wastewater. The purpose of the invention is to increase the efficiency of use of the aerotank. Aerotenk consists of a body, inclined partitions 2 with main visors 3, caps 4,

node 5 of the initial fluid supply, node 6, its aeration, node 7 removal of purified liquid and node 8 removal of excess sludge. Caps 4 are equipped with nodes 9 of the supply of gas-oil mixture, nodes IO of the gas outlet and nodes I1 of the liquid outlet. The effluent through node 5 is fed into the aeration chamber 14 by circulating it is distributed throughout the volume and mixed with sludge. In the cap 4, the gas-liquid mixture is separated. The gas is removed through the node 10, the liquid enters the clarification chamber. The clarified liquid is discharged through the node 7. The invention allows to intensify the process of mass transfer. 3 hp f-ly, 3 silt

(L

with

CD 1C

ABOUT

Yu

with

The invention relates to the biological treatment of water from industrial or domestic wastewater and can be used in sewage treatment plants of small and medium-sized cities and industrial enterprises.

The aim of the invention is to increase the efficiency of use of a15

roten due to the intensification of the mass part, and the chamber 15 of clarification, separation.

FIG. Aerotank is presented, cut; in FIG. 2, node I in FIG. 1; FIG. 3 shows an aerotank version with a zigzag arrangement of inclined partitions.

The aero tank of a round or rectangular shape (Fig.1,2) consists of a body 1, inclined partitions 2, one above the other, with main peaks 3, caps 4, units 5 for supplying the initial liquid, unit 6 for its aeration , node 7 removal of purified liquid and node 8 removal of excess sludge. Caps 4 are equipped with nodes 9 of the gas-liquid mixture, nodes 10 of the gas outlet and nodes 11 of the liquid. Caps 4 are formed by additional peaks J2, connected with inclined partitions 2 and (or) main peaks 3.

Inclined partitions 2 upper ends attached to the vertical partitions 13. The volume of aerotank times 25

thirty

Lena inclined partitions 2 on Russ.

Node 7 drainage of purified fluid is located under the upper end of the additional visor 12.

Aerotenk works as follows.

The waste liquid through the source liquid supply unit 5 is supplied to the aeration chamber aeration chamber 14, due to circulation it is distributed throughout the entire volume of the aeration chamber 14 and is displaced with the sludge.

With the help of aeration unit 6, into which oxygen-containing gas is supplied, the mixture of waste liquid and sludge is aerated and saturated with oxygen. At the level of each Russ of the chamber 15, the clarification liquid (silt mixture), saturated with oxygen, and the gas in the liquid in the form of bubbles, through the gas-liquid mixture supply unit 9 enters the cap 4, where the gas-liquid mixture separates into gas and liquid. The gas from the cap 4 through the gas exhaust unit 0 is removed to the aeration chamber 4, and the liquid enriched with oxygen is supplied to the clarification chamber 15 by means of the unit 11. The stream of sludge mixture entering the Rus of the clarification chamber 15 creates a sedimented layer of silt in it and returns to the aeration chamber 14.

It is divided by main peaks 3 and vertical partitions 13 into aeration chambers 14 connected hydraulically in the upper and lower, parts, and lightening chambers 15. The clarification chambers 15 are separated by inclined partitions Q 2 into Rus.

 Node 7 removal of precision liquid is located under the upper ends of each of the inclined pefegorodki 2.

In a round aeration tank, inclined baffles 2 are tapered.

In the variant with a zigzag arrangement of partitions (FIG. 3), the rectangular aeration tank consists of a body I, inclined partitions 2 arranged in a zigzag manner with the main visors 3, caps 4, unit 5 for supplying the initial fluid, unit 6 for its aeration, unit 7 for discharging the outlet 50

With the help of aeration unit 6, into which oxygen-containing gas is supplied, the mixture of waste liquid and sludge is aerated and saturated with oxygen. At the level of each Russ of the chamber 15, the clarification liquid (silt mixture), saturated with oxygen, and the gas in the liquid in the form of bubbles, through the gas-liquid mixture supply unit 9 enters the cap 4, where the gas-liquid mixture separates into gas and liquid. The gas from the cap 4 through the gas exhaust unit 0 is removed to the aeration chamber 4, and the liquid enriched with oxygen is supplied to the clarification chamber 15 by means of the unit 11. The stream of sludge mixture entering the Rus of the clarification chamber 15 creates a sedimented layer of silt in it and returns to the aeration chamber 14.

The cleaned fluid, which enters the chamber of the clarification chamber 15 together with the sludge mixture, passes the sedimented layer of sludge, separates from the sludge and rises up. The purified and clarified liquid is collected and discharged from the aerotank through the node 7 for draining the purified liquid.

Excessive sludge from the aerotank is discharged through node 8.

Supply of oxygenated sludge into each Russian chamber 15

liquid and node 8, over-discharge at its level and

accurate sludge. -Kolpak 4 equipped with a node-oxygen-depleted sludge mixture

mi 9 supply gas-liquid mixture, allows to intensify the process

nodes 10 of the gas outlet and nodes M from the mass transfer between the aeration chambers and

water fluid. Caps 4 are formed by additional peaks 12 connected to the main peaks 3 and located under the nodes 9 of the gas-liquid mixture.

The volume of the aerotank is divided by visors 3 into 14 azration chambers connected hydraulically in the upper and lower

five

parts, and the clarification chamber 15,

0

five

0

Q

,,

50

Lena inclined partitions 2 on Russ.

Node 7 drainage of purified fluid is located under the upper end of the additional visor 12.

Aerotenk works as follows.

The waste liquid through the source liquid supply unit 5 is supplied to the aeration chamber aeration chamber 14, due to circulation it is distributed throughout the entire volume of the aeration chamber 14 and is displaced with the sludge.

With the help of aeration unit 6, into which oxygen-containing gas is supplied, the mixture of waste liquid and sludge is aerated and saturated with oxygen. At the level of each Russ of the chamber 15, the clarification liquid (silt mixture), saturated with oxygen, and the gas in the liquid in the form of bubbles, through the gas-liquid mixture supply unit 9 enters the cap 4, where the gas-liquid mixture separates into gas and liquid. The gas from the cap 4 through the gas exhaust unit 0 is removed to the aeration chamber 4, and the liquid enriched with oxygen is supplied to the clarification chamber 15 by means of the unit 11. The stream of sludge mixture entering the Rus of the clarification chamber 15 creates a sedimented layer of silt in it and returns to the aeration chamber 14.

The cleaned fluid, which enters the chamber of the clarification chamber 15 together with the sludge mixture, passes the sedimented layer of sludge, separates from the sludge and rises up. The purified and clarified liquid is collected and discharged from the aerotank through the node 7 for draining the purified liquid.

Excessive sludge from the aerotank is discharged through node 8.

Supply of oxygenated sludge into each Russian chamber 15

55 lightening at his level and tap

clarification, increase the amount of oxygen supplied to the suspended sludge layer, which simultaneously processes oxidation of wastewater contamination and its clarification, intensifies mass transfer during the dissolution of oxygen in the aeration chamber and thereby increases the efficiency of the aerotank using without additional energy costs.

Claims (4)

Invention Formula I. Aerotank containing body, sloping partitions with basic visors, supply units for source liquid, its aeration, removal of purified liquid and excess sludge, characterized in that, in order to increase the efficiency of using aerotank due to the intensification of mass transfer, the aerotank is equipped with caps with supply units gas and oil mixture, gas and liquid outlet. 2. Aerotank according to claim 1, about t l and h a yu shch and the fact that it is equipped with additional visors connected with inclined partitions and (or) main peaks with the formation of caps. 3. Aerotank according to PP.1 and 2, .o t l in order that the inclined partitions are made cone-shaped. 4. Aerotank according to claims 1 and 2, which is based on the fact that the inclined partitions are located in a zigzag manner, and the additional visors are connected to the main visors and are located under the nodes of the gas-and-gas mixture. FIG. g Fig.d