CN111925045A

CN111925045A - Sewage treatment tank

Info

Publication number: CN111925045A
Application number: CN202010965749.5A
Authority: CN
Inventors: 高萌
Original assignee: Weifang Hongtu Environmental Protection Equipment Co ltd
Current assignee: Weifang Hongtu Environmental Protection Equipment Co ltd
Priority date: 2020-09-15
Filing date: 2020-09-15
Publication date: 2020-11-13
Anticipated expiration: 2040-09-15
Also published as: CN111925045B

Abstract

The invention provides a sewage treatment pool which comprises a primary reaction pool and a secondary disinfection pool, wherein the primary reaction pool and the secondary disinfection pool are pre-buried in the ground, the primary reaction pool and the secondary disinfection pool are connected through a pump body, the bottom ends of the primary reaction pool and the secondary disinfection pool are connected with a heating chamber through air pipes, one end of the heating chamber is connected with an air exchange chamber through a pipeline, the bottom ends of the air exchange chamber and the heating chamber are fixed on the ground, the air exchange chamber is connected with the secondary disinfection pool through a pipeline, a stirring assembly is arranged in the primary reaction pool, and the stirring assembly is connected with a feeding assembly through a power assembly. According to the invention, the primary reaction tank, the heating chamber, the power assembly, the stirring assembly and the feeding assembly are matched, so that the feeding box can be opened and closed according to actual requirements while the reactants and the sewage are stirred, and the reactants in the primary reaction tank are turned over, thereby fully mixing the reactants and the sewage.

Description

Sewage treatment tank

Technical Field

The invention mainly relates to the technical field of sewage treatment tanks, in particular to a sewage treatment tank.

Background

The treatment tank is an essential device in sewage treatment, and sewage enters the treatment tank after primary treatment during sewage treatment and carries out biochemical reaction through the treatment tank.

According to a sewage treatment tank provided by patent document with the application number of CN201710700068.4, the product comprises a secondary disinfection processor, an adjusting tank, a primary sludge disinfection machine, a sedimentation tank, a sludge disinfection machine, a disinfection detection controller, a water outlet, a disinfection tank, a high-efficiency inclined plate reaction tank, a biological contact oxidation reaction tank, a stirring rod, a water pump and a primary disinfection processor, wherein the primary disinfection processor is electrically connected with the adjusting tank, the stirring rod is arranged at the bottom of the adjusting tank, the adjusting tank is communicated with the sedimentation tank through the primary sludge disinfection machine, and the biological contact oxidation reaction tank is communicated with the disinfection tank through the high-efficiency inclined plate reaction tank.

However, the above-mentioned treatment tank has defects, for example, although the above-mentioned treatment tank has the condition of detecting the quality of the treated sewage, the conventional treatment tank usually adopts a stirrer to stir the sewage to achieve the purpose of fully reacting the reactant with the sewage, in this process, the staff often adopts manual or mechanical one-time addition of a large amount of adjustment materials, and then stir, resulting in slow dissolution rate of the adjustment materials and easy occurrence of precipitation.

Disclosure of Invention

The invention mainly provides a sewage treatment tank for solving the technical problems in the background technology.

The technical scheme adopted by the invention for solving the technical problems is as follows:

a sewage treatment pool comprises a primary reaction pool and a secondary disinfection pool, wherein the primary reaction pool and the secondary disinfection pool are pre-buried in the ground, the primary reaction pool and the secondary disinfection pool are connected through a pump body, the bottom ends of the primary reaction pool and the secondary disinfection pool are connected with a heating chamber through air pipes, one end of the heating chamber is connected with a ventilation chamber through a pipeline, the bottom ends of the ventilation chamber and the heating chamber are fixed on the ground, the ventilation chamber is connected with the secondary disinfection pool through a pipeline, a stirring assembly is arranged in the primary reaction pool and is connected with a feeding assembly through a power assembly, the stirring assembly comprises a fixed disc, the fixed disc is fixed at the top end of the primary reaction pool through bolts, the inside of the fixed disc is rotatably connected with a stirring shaft through a bearing, and a plurality of stirring blades are symmetrically fixed on two sides of the stirring shaft, the feeding assembly comprises a feeding box, the bottom end of the feeding box is fixed on the ground, a discharging box is fixed at the bottom of one end of the feeding box, the inner cavity of the discharging box is communicated with the inner cavity of the feeding box, a discharging pipe is fixed at one end of the feeding box, far away from the discharging box, and one end of the discharging pipe is rotatably connected with the top end of the stirring shaft through a bearing.

Further, go out the inside of magazine and be equipped with the rotation axis, the both ends of rotation axis all through the bearing with the inner wall of play magazine rotates and connects, the outer peripheral face of rotation axis is fixed with a plurality of and goes out the flitch, and is a plurality of it encircles to go out the flitch the radial planar axis of rotation axis equidistance sets up one by one.

Furthermore, the power assembly comprises a motor, the motor base is fixed on the top end surface of the primary reaction tank, a first bevel gear is fixed on the outer peripheral surface of an output shaft of the motor, a second bevel gear is meshed and connected to one side of the first bevel gear, the second bevel gear is fixed on the outer peripheral surface of one end of the stirring shaft, a first rotating gear is coaxially arranged on one side of the first bevel gear, which is close to the motor, a one-way driving mechanism is connected to one side of the first rotating gear, and the first rotating gear is connected with the rotating shaft through the one-way driving mechanism.

Furthermore, one-way actuating mechanism is including two rotary sleeve, two the outer peripheral face of rotation axis is all located to the cover of rotary sleeve and is rotated with the outer peripheral face of rotation axis through the bearing and be connected, every one side surface that the rotary sleeve is close to another rotary sleeve all is fixed with a plurality of guide arms, two be connected with the ring gear through the guide arm between the rotary sleeve, the ring gear through the chain with first swing pinion is connected.

Furthermore, the inner ring of the gear ring is rotatably connected with a pawl through a rotating shaft, the pawl is clamped with a ratchet, and the ratchet is fixed on the outer peripheral surface of the rotating shaft.

Furthermore, a spring is fixed on one side of the pawl, and the pawl is connected with the surface of the inner ring of the gear ring through the spring.

Furthermore, the top end of the stirring shaft is of a hollow structure, and a plurality of material scattering holes are formed in the shell at the top end of the stirring shaft.

Furthermore, the cross section of the inner cavity at the top end of the stirring shaft is oval.

Furthermore, one end of the air pipe extending into the primary reaction tank and one end of the secondary disinfection tank are both fixed with a gas one-way valve.

Furthermore, a plurality of heating copper pipes are fixed inside the heating chamber.

Compared with the prior art, the invention has the beneficial effects that:

firstly, the feeding box can be opened and closed according to actual requirements while the reactants and the sewage are stirred and added, so that the reactants and the sewage are fully mixed, specifically, when the power assembly drives the stirring shaft fixed in the primary reaction tank to rotate forwards through the cooperation of the primary reaction tank, the feeding assembly and the power assembly, the power assembly drives the rotating shaft in the feeding box to rotate through the gear ring in the one-way driving mechanism, so that the reactants such as flocculating agent and the like are pushed into the discharging pipe connected with the primary reaction by the aid of the plurality of discharging plates arranged around the outer peripheral surface of the rotating shaft while the stirring shaft is stirring, so that discharging is carried out.

Secondly, the invention can aerate the first-stage reaction tank and the second-stage disinfection tank and simultaneously prevent the reactant in the first-stage reaction tank from precipitating so as to fully mix the reactant and sewage, and particularly, the ventilation chamber is connected with the heating chamber, so that the ventilation chamber sends the air in the second-stage disinfection tank into the heating chamber through an induced draft fan in the ventilation chamber to heat the air, and the heating chamber is connected with the bottom ends of the first-stage reaction tank and the second-stage disinfection tank through an air pipe, so that the first-stage reaction tank and the second-stage disinfection tank are aerated by the heating chamber, and a large amount of high-temperature bubbles can be generated at the bottom ends of the first-stage reaction tank and the second-stage disinfection tank during aeration, and the high-temperature bubbles can rise to turn.

The present invention will be explained in detail below with reference to the drawings and specific embodiments.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic sectional view of a primary reaction tank according to the present invention;

FIG. 3 is a schematic structural diagram of a one-way driving mechanism according to the present invention;

FIG. 4 is a schematic structural view of a stirring assembly of the present invention;

FIG. 5 is an enlarged view of the structure of region A in FIG. 2;

fig. 6 is a schematic view of the internal structure of the ring gear of the present invention.

In the figure: 1. a first-stage reaction tank; 2. a secondary disinfection tank; 3. a heating chamber; 31. an air tube; 32. a gas check valve; 33. heating the copper pipe; 4. a ventilation chamber; 5. a feeding assembly; 51. a feeding box; 52. discharging the material box; 53. a rotating shaft; 54. a discharge plate; 55. a discharge pipe; 6. a stirring assembly; 61. fixing the disc; 62. a stirring shaft; 63. a stirring blade; 64. material scattering holes; 7. a power assembly; 71. a motor; 72. a one-way drive mechanism; 721. a rotating sleeve; 722. a guide bar; 723. a ring gear; 73. a second bevel gear; 74. a first bevel gear; 75. a first rotating gear.

Detailed Description

In order to facilitate an understanding of the invention, the invention will now be described more fully hereinafter with reference to the accompanying drawings, in which several embodiments of the invention are shown, but which may be embodied in different forms and not limited to the embodiments described herein, but which are provided so as to provide a more thorough and complete disclosure of the invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may be present, and when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present, as the terms "vertical", "horizontal", "left", "right" and the like are used herein for descriptive purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the knowledge of the terms used herein in the specification of the present invention is for the purpose of describing particular embodiments and is not intended to limit the present invention, and the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Referring to the attached drawings 1-4, a sewage treatment tank comprises a primary reaction tank 1 and a secondary disinfection tank 2, wherein the primary reaction tank 1 and the secondary disinfection tank 2 are pre-buried in the ground, the primary reaction tank 1 is connected with the secondary disinfection tank 2 through a pump body, the bottom ends of the primary reaction tank 1 and the secondary disinfection tank 2 are connected with a heating chamber 3 through an air pipe 31, one end of the heating chamber 3 is connected with an air exchange chamber 4 through a pipeline, the bottom ends of the air exchange chamber 4 and the heating chamber 3 are fixed on the ground, the air exchange chamber 4 is connected with the secondary disinfection tank 2 through a pipeline, a stirring component 6 is arranged in the primary reaction tank 1, the stirring component 6 is connected with a feeding component 5 through a power component 7, the stirring component 6 comprises a fixed disk 61, the fixed disk 61 is fixed at the top end of the primary reaction tank 1 through bolts, fixed disk 61's inside is rotated through the bearing and is connected with (mixing) shaft 62, the bilateral symmetry of (mixing) shaft 62 is fixed with a plurality of stirring vane 63, throw material subassembly 5 including throwing workbin 51, the bottom mounting of throwing workbin 51 is subaerial, the one end bottom of throwing workbin 51 is fixed with ejection of compact box 52, the inner chamber of play workbin 52 with the inner chamber of throwing workbin 51 is linked together, it keeps away from to go out workbin 52 the one end of throwing workbin 51 is fixed with discharging pipe 55, discharging pipe 55 is kept away from the one end of play workbin 52 pass through the bearing with the top of (mixing) shaft 62 is rotated and is connected.

In the embodiment, referring to fig. 1, a gas check valve 32 is fixed at one end of the gas pipe 31 extending into the primary reaction tank 1 and the secondary disinfection tank 2, so as to prevent the sewage in the primary reaction tank 1 and the secondary disinfection tank 2 from flowing back into the gas pipe 31 and affecting the use of the gas pipe 31.

In the embodiment, please refer to fig. 1 again, a plurality of heating copper pipes 33 are fixed inside the heating chamber 3, so that the heating chamber 3 heats the air delivered from the ventilating chamber 4 through the heating copper pipes 33 fixed inside.

In an embodiment, referring to fig. 2 and 5, the power assembly 7 includes a motor 71, a base of the motor 71 is fixed on a top end surface of the primary reaction tank 1, a first bevel gear 74 is fixed on an outer peripheral surface of an output shaft of the motor 71, a second bevel gear 73 is engaged with one side of the first bevel gear 74, the second bevel gear 73 is fixed on an outer peripheral surface of one end of the stirring shaft 62, so that when the output shaft of the motor 71 drives the first bevel gear 74 to rotate, as the first bevel gear 74 is engaged with the second bevel gear 73 sleeved on the top end of the stirring shaft 62, torque is transmitted to the second bevel gear 73 on the stirring shaft 62 and the stirring shaft 62 is rotated, a speed reducer can be added between the motor 71 and the stirring shaft 62, the first bevel gear 74 is fixed on an output shaft of the speed reducer, torque of the motor 71 is increased, a first rotating gear 75 is coaxially arranged on one side of the first, one side of the first rotating gear 75 is connected with a one-way driving mechanism 72, and the first rotating gear 75 is connected with the rotating shaft 53 through the one-way driving mechanism 72, so that the first rotating gear 75 on the output shaft of the motor 71 drives the one-way driving mechanism 72 connected with the first rotating gear through a chain.

In an embodiment, referring to fig. 3, a rotating shaft 53 is disposed inside the material outlet box 52, two ends of the rotating shaft 53 are rotatably connected to an inner wall of the material outlet box 52 through bearings, a plurality of discharging plates 54 are fixed on the outer peripheral surface of the rotating shaft 53, the discharging plates 54 are arranged around the central axis of the radial plane of the rotating shaft 53 at equal intervals one by one, so that when the rotating shaft 53 is driven by the power assembly 7 to rotate, since the outer circumferential surface of the rotating shaft 53 is provided with a plurality of discharging plates 54 arranged therearound, the rotating shaft 53 is revolved around by the discharging plates 54, so as to push the material received by the discharging plate 54 into the discharging pipe 55 at the end of the discharging box 52 far away from the charging box 51, when the rotating shaft 53 stops rotating, the rotating shaft 53 blocks the opening connected between the discharging box 52 and the discharging pipe 55 through the upper discharging plate 54, so that a large amount of adjusting materials such as flocculating agent and the like are prevented from being thrown into the primary reaction tank 1 at one time.

In an embodiment, please refer to fig. 3 and 6 again, the one-way driving mechanism 72 includes two rotating sleeves 721, the two rotating sleeves 721 are respectively sleeved on the outer circumferential surface of the rotating shaft 53 and rotatably connected to the outer circumferential surface of the rotating shaft 53 through bearings, a plurality of guide rods 722 are fixed on one side surface of each rotating sleeve 721 close to the other rotating sleeve 721, a ring gear 723 is connected between the two rotating sleeves 721 through the guide rods 722, the ring gear 723 is connected to the first rotating gear 75 through a chain, and the ring gear 723 is driven to rotate due to the connection of the ring gear 723 and the rotating sleeves 721 sleeved on the rotating shaft 53 through the guide rods 722, so that the ring gear 723 is not in contact with the rotating shaft 53 while providing support for the rotating sleeve via the guide rods 722.

In an embodiment, referring to fig. 3 and 6 again, the inner ring of the ring gear 723 is rotatably connected with a pawl 724 through a rotating shaft, the pawl 724 is clamped with a ratchet 531, the ratchet 531 is fixed on the outer circumferential surface of the rotating shaft 53, so that when the ring gear 723 rotates forward, the pawl 724 rotatably connected in the ring gear 723 is clamped with the ratchet 531 fixed on the rotating shaft 53, so that the rotating shaft 53 is driven to rotate by the ring gear 723, and a plurality of pawls 724 and ratchets 531 may be provided, so that the pawl 724 and the ratchet 531 abutted against each other provide support for the ring gear 723 on the pawl 724, and when the ring gear 723 rotates backward, the pawl 724 rotatably connected on the ring gear 723 continuously slides over the ratchet surface 531 fixed on the rotating shaft 53, so that the pawl 724 is prevented from driving the rotating shaft 53 to rotate, and the discharge plate on the rotating shaft.

In an embodiment, referring to fig. 4, the top end of the stirring shaft 62 is a hollow structure, and a plurality of material scattering holes 64 are formed on a top shell of the stirring shaft 62, so that a cavity formed at the top end of the stirring shaft 62 provides an insertion position for the material discharging pipe 55, and when stirring shaft 62 rotates, the inner cavity at the top end of stirring shaft 62 is communicated with the outside through material scattering holes 64, thereby driving the flocculating agent in the inner cavity of the stirring shaft 62 to be sprinkled out by utilizing the centrifugal force when the stirring shaft 62 rotates, wherein the cross section of the inner cavity at the top end of the stirring shaft 62 is elliptic, the central axis of the elliptical inner cavity at the top end of the stirring shaft 62 can be set in a state of not coinciding with the central axis of the radial plane of the stirring shaft 62, when the stirring shaft 62 rotates, the flocculant in the inner cavity at the top end of the stirring shaft 62 is unevenly distributed by gravity, so that the throwing-out area of the flocculant in the stirring shaft 62 is enlarged, and the flocculant is uniformly scattered.

In an embodiment, referring to fig. 6, a spring 725 is fixed to one side of the pawl 724, and the pawl 724 is connected to the inner circumferential surface of the ring gear 723 through the spring 725, so that when the pawl 724 continuously slides over the surface of the ratchet 531 fixed to the rotating shaft 53, the pawl 724 is connected to the inner circumferential surface of the ring gear 723 through the spring 725, and thus the pawl 724 is continuously returned to the original operating position by the energy stored in the spring 725.

The specific operation mode of the invention is as follows:

when the sewage treatment tank is used, sewage enters the tank through a water inlet of the primary reaction tank 1, meanwhile, the motor 71 in the power assembly 7 is started, so that the output shaft of the motor 71 drives the first bevel gear 74 to rotate forwardly, the first bevel gear 74 is meshed with the second bevel gear 73 sleeved at the top end of the stirring shaft 62, so as to drive the stirring shaft 62 to rotate, so that the stirring blades 63 on the stirring shaft 62 are utilized to stir the sewage in the primary reaction tank 1, the sewage is fully mixed with reactants such as flocculating agent in the tank, meanwhile, the first rotating gear 75 on the output shaft of the motor 71 drives the gear ring 723 in the one-way driving mechanism 72 to rotate through a chain, the pawl 724 rotationally connected with the gear ring 723 is clamped with the ratchet 531 fixed on the rotating shaft 53, so as to drive the rotating shaft 53 to rotate through the gear ring 723, and the outer peripheral surface of the rotating shaft 53 is provided with a plurality of, therefore, the discharge plate 54 revolves around the rotating shaft 53, the received materials are pushed into the discharge pipe 55, the discharge pipe 55 is connected with the top cavity of the stirring shaft 62, and the inner cavity at the top end of the stirring shaft 62 is communicated with the outside through the material scattering hole 64 formed in the stirring shaft 62, so that the flocculant in the inner cavity of the stirring shaft 62 is driven to be scattered by the centrifugal force generated when the stirring shaft 62 rotates, and the first-stage reaction tank 1 is enabled to add reactants while mixing the reactants with the sewage by the stirring shaft 62;

similarly, when the output shaft of the motor 71 rotates reversely, the pawl 724 rotatably connected to the gear ring 723 continuously slides over the surface of the ratchet 531 fixed on the rotating shaft 53, so that the pawl 724 is prevented from driving the rotating shaft 53 to rotate, the discharging plate on the rotating shaft 53 stops discharging, and excessive materials in the primary reaction tank 1 are avoided;

meanwhile, because the room 4 of taking a breath and heating chamber 3 interconnect, make the room 4 of taking a breath send into the inside air of second grade disinfection pond 2 into heating chamber 3 through its inside draught fan and heat, because heating chamber 3 is connected with the bottom of one-level reaction tank 1 and second grade disinfection pond 2 through trachea 31, thereby utilize heating chamber 3 to aerate one-level reaction tank 1 and second grade disinfection pond 2, and during the aeration, can produce a large amount of high temperature bubbles in the bottom of one-level reaction tank 1 and second grade disinfection pond 2, make the reactant in the one-level reaction tank 1 of high temperature bubble rising stirring.

The invention is described above with reference to the accompanying drawings, it is obvious that the invention is not limited to the above-described embodiments, and it is within the scope of the invention to adopt such insubstantial modifications of the inventive method concept and solution, or to apply the inventive concept and solution directly to other applications without modification.

Claims

1. A sewage treatment pool is characterized by comprising a primary reaction pool (1) and a secondary disinfection pool (2), wherein the primary reaction pool (1) and the secondary disinfection pool (2) are pre-buried in the ground, the primary reaction pool (1) is connected with the secondary disinfection pool (2) through a pump body, the bottom ends of the primary reaction pool (1) and the secondary disinfection pool (2) are connected with a heating chamber (3) through an air pipe (31), one end of the heating chamber (3) is connected with a ventilation chamber (4) through a pipeline, the bottom ends of the ventilation chamber (4) and the heating chamber (3) are fixed on the ground, and the ventilation chamber (4) is connected with the secondary disinfection pool (2) through a pipeline;

a stirring assembly (6) is arranged in the primary reaction tank (1), the stirring assembly (6) is connected with a feeding assembly (5) through a power assembly (7), the stirring assembly (6) comprises a fixed disc (61), the fixed disc (61) is fixed at the top end of the primary reaction tank (1) through bolts, a stirring shaft (62) is rotatably connected in the fixed disc (61) through a bearing, and a plurality of stirring blades (63) are symmetrically fixed on two sides of the stirring shaft (62);

throw material subassembly (5) including throwing workbin (51), the bottom mounting of throwing workbin (51) is subaerial, the one end bottom of throwing workbin (51) is fixed with out magazine (52), the inner chamber of going out magazine (52) with the inner chamber of throwing workbin (51) is linked together, it keeps away from to go out magazine (52) the one end of throwing workbin (51) is fixed with discharging pipe (55), discharging pipe (55) are kept away from the one end of going out magazine (52) pass through the bearing with the top of (mixing) shaft (62) is rotated and is connected.

2. The sewage treatment pool according to claim 1, wherein a rotating shaft (53) is arranged inside the material outlet box (52), two ends of the rotating shaft (53) are rotatably connected with the inner wall of the material outlet box (52) through bearings, a plurality of material outlet plates (54) are fixed on the outer circumferential surface of the rotating shaft (53), and the material outlet plates (54) are arranged around the central axis of the radial plane of the rotating shaft (53) at equal intervals one by one.

3. A sewage treatment pool according to claim 2, wherein the power assembly (7) comprises a motor (71), the base of the motor (71) is fixed on the top end surface of the primary reaction pool (1), a first bevel gear (74) is fixed on the outer peripheral surface of the output shaft of the motor (71), a second bevel gear (73) is engaged and connected to one side of the first bevel gear (74), and the second bevel gear (73) is fixed on the outer peripheral surface of one end of the stirring shaft (62);

one side of the first bevel gear (74) close to the motor (71) is coaxially provided with a first rotating gear (75), one side of the first rotating gear (75) is connected with a one-way driving mechanism (72), and the first rotating gear (75) is connected with the rotating shaft (53) through the one-way driving mechanism (72).

4. A sewage treatment pool according to claim 3, wherein the one-way driving mechanism (72) comprises two rotary sleeves (721), the two rotary sleeves (721) are respectively sleeved on the peripheral surface of the rotary shaft (53) and rotatably connected with the peripheral surface of the rotary shaft (53) through bearings, a plurality of guide rods (722) are respectively fixed on one side surface of each rotary sleeve (721) close to the other rotary sleeve (721), a gear ring (723) is connected between the two rotary sleeves (721) through the guide rods (722), and the gear ring (723) is connected with the first rotary gear (75) through a chain.

5. The sewage treatment pool according to claim 4, wherein a pawl (724) is rotatably connected to the inner ring of the gear ring (723) through a rotating shaft, the pawl (724) is clamped with a ratchet (531), and the ratchet (531) is fixed on the outer peripheral surface of the rotating shaft (53).

6. A sewage treatment pool according to claim 5, wherein a spring (725) is fixed to one side of the pawl (724), and the pawl (724) is connected with the inner ring surface of the ring gear (723) through the spring (725).

7. The sewage treatment pool according to claim 1, wherein the top end of the stirring shaft (62) is a hollow structure, and a plurality of material scattering holes (64) are formed in a top end shell of the stirring shaft (62).

8. A sewage treatment pond according to claim 7, characterized in that the cross section of the inner cavity at the top end of the stirring shaft (62) is oval.

9. A sewage treatment tank according to claim 1, characterized in that a gas check valve (32) is fixed at one end of the gas pipe (31) extending into the primary reaction tank (1) and the secondary disinfection tank (2).

10. A wastewater treatment basin according to claim 1, characterized in that a plurality of heating copper pipes (33) are fixed inside the heating chamber (3).