Movable sewage station for treating aquaculture wastewater

Abstract

The utility model discloses a movable sewage station for treating aquaculture wastewater, which comprises an air flotation machine, a biological reaction tank I, a biological reaction tank II, a biological reaction tank III, a biological reaction tank IV, a sedimentation tank I and a sedimentation tank II, a dissolved air generator is arranged on the air flotation machine, and the dissolved air generator is connected with a dissolved air releaser arranged in the air flotation machine; a plurality of stirring mechanisms B for anaerobic reaction of microorganisms are arranged in the first biological reaction tank, a plurality of microporous aeration devices are arranged at the bottom end in the first biological reaction tank, and the second biological reaction tank, the third biological reaction tank and the fourth biological reaction tank are the same as the first biological reaction tank in structure; a stirring mechanism C used for dosing and mixing is arranged on the second sedimentation tank, a sludge hopper and a second blow-off pipe are further arranged at the bottom of the second sedimentation tank, and the first sedimentation tank and the second sedimentation tank are the same in structure; the sewage treatment device has the advantages of being flexible and convenient to use and adjust, capable of treating sewage under different working conditions, capable of improving sewage treatment efficiency and effect and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to a movable sewage station for treating aquaculture wastewater. Background Art

[0002] When constructing a sewage treatment plant, a farm needs to analyze the amount and quality of sewage generated by the farm, select sewage treatment technology in a targeted manner, and ensure that the built sewage treatment plant can treat the wastewater up to standard; the existing sewage treatment systems of farms are mostly composed of a collection tank, a primary sedimentation tank, a regulating tank, an air flotation machine, an AO tank and a tertiary sedimentation tank, but they can only treat sewage under a single working condition, are inconvenient to use and adjust, and affect the efficiency and effect of sewage treatment. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the existing defects and provide a movable sewage station for treating aquaculture wastewater. The sewage station is flexible and convenient to use and adjust, can treat sewage under different working conditions, and improve the efficiency and effect of sewage treatment, which can effectively solve the problems in the background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a movable sewage station for treating aquaculture wastewater, comprising an air flotation machine, a bioreactor tank 1, a bioreactor tank 2, a bioreactor tank 3, a bioreactor tank 4, a sedimentation tank 1 and a sedimentation tank 2, wherein the air flotation machine is provided with a dissolved air generator, and the dissolved air generator is connected to a dissolved air releaser provided inside the air flotation machine; the bioreactor tank 1 is provided with a plurality of stirring mechanisms B for anaerobic reaction of microorganisms, the internal bottom end of the bioreactor tank 1 is provided with a plurality of microporous aeration devices, and the bioreactor tank 2, the bioreactor tank 3 and the bioreactor tank 4 have the same structure as the bioreactor tank 1; the sedimentation tank 2 is provided with a stirring mechanism C for adding medicine and mixing, the bottom of the sedimentation tank 2 is also provided with a sludge hopper and a sewage pipe 2, and the sedimentation tank 1 and the sedimentation tank 2 have the same structure;

[0005] The water inlets of the biological reaction tank 1 and the biological reaction tank 2 are connected to the water outlet of the air flotation machine through pipelines and electromagnetic three-way valve A, the water outlets of the biological reaction tank 1 and the biological reaction tank 2 are respectively connected to the water inlets of the biological reaction tank 3 and the biological reaction tank 4 through electromagnetic valve 1 and pipelines, the water outlets of the biological reaction tank 3 and the biological reaction tank 4 are mutually connected through pipelines and electromagnetic three-way valve B, the sedimentation tank 1 and the sedimentation tank 2 are connected to the redundant pipe openings of the electromagnetic three-way valve B through pipelines and electromagnetic three-way valve C; the pipeline connected to the water outlet end of the biological reaction tank 1 and the pipeline connected to the water inlet end of the biological reaction tank 2 are mutually connected through connecting branch pipe A and electromagnetic valve 2, the pipeline connected to the water outlet end of the biological reaction tank 3 and the pipeline connected to the water inlet end of the biological reaction tank 4 are mutually connected through connecting branch pipe B and electromagnetic valve 3, and the pipeline connected to the outlet end of the sedimentation tank 1 and the pipeline connected to the water inlet end of the sedimentation tank 2 are mutually connected through connecting branch pipe C and electromagnetic three-way valve D.

[0006] Furthermore, the flotation machine is provided with a dosing chamber 1 and an air flotation chamber which are interconnected, and the dosing chamber 1 is close to the water inlet of the air flotation machine, and the dosing chamber 1 is provided with a stirring mechanism A for dosing and mixing; a scraping mechanism is provided at the top of the air flotation chamber, and a slag discharge pipe is provided at the end of the scraping mechanism on the air flotation machine; a sewage discharge pipe A is provided at the bottom of the air flotation machine.

[0007] Furthermore, the second sedimentation tank is provided with a second dosing chamber and a sedimentation chamber which are interconnected, the second dosing chamber is close to the water inlet of the second sedimentation tank, and the stirring mechanism C is arranged in the second dosing chamber.

[0008] Furthermore, a water distribution pipe is horizontally provided in the sedimentation chamber at a position close to the second dosing chamber, and the setting direction of the water distribution pipe is perpendicular to the water flow direction in the sedimentation chamber. A connecting pipe is provided at the water inlet end of the water distribution pipe, and the connecting pipe is connected with the second dosing chamber. A plurality of water distribution holes are evenly spaced at the lower end of the water distribution pipe.

[0009] Compared with the prior art, the beneficial effects of the utility model are as follows: the movable sewage station for treating aquaculture wastewater is provided with microporous aeration devices and stirring mechanism B inside bioreactor tank 1, bioreactor tank 2, bioreactor tank 3 and bioreactor tank 4, so that bioreactor tank 1, bioreactor tank 2, bioreactor tank 3 and bioreactor tank 4 can be used as anaerobic tanks, anoxic tanks or aerobic tanks, and since dosing mixing chamber 2 and stirring mechanism C are provided inside sedimentation tank 1 and sedimentation tank 2, sedimentation tank 1 and sedimentation tank 2 can be used as secondary sedimentation tanks or tertiary sedimentation tanks, the sewage station is flexible and convenient to use and adjust, can treat sewage under different working conditions, and improve the efficiency and effect of sewage treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the structure of the utility model;

[0011] Figure 2 This is a schematic diagram of the structure of the air flotation machine of the utility model;

[0012] Figure 3 This is a schematic diagram of the structure of a biological reaction pool of the utility model;

[0013] Figure 4 This is a schematic diagram of the internal structure of a biological reaction pool of the utility model;

[0014] Figure 5 This is a schematic diagram of the structure of the second sedimentation tank of the utility model;

[0015] Figure 6 This is a schematic diagram of the internal structure of the second sedimentation tank of the utility model;

[0016] Figure 7 This is a schematic diagram of the water distribution pipe structure of the utility model;

[0017] Figure 8 This is a schematic diagram of the structure of the utility model when used in the first sewage working condition;

[0018] Fig. 9 This is a schematic diagram of the structure of the utility model when used under the second sewage working condition.

[0019] In the figure: 1, air flotation machine; 101, dosing chamber 1; 102, stirring mechanism A; 103, air flotation chamber; 104, scraping mechanism; 105, slag discharge pipe; 106, dissolved air generator; 107, sewage discharge pipe A; 2. Bioreactor tank 1; 21. Microporous aeration device; 22. Stirring mechanism B; 3. Bioreactor tank 2; 4. Bioreactor tank 3; 5. Bioreactor tank 4; 6. Sedimentation tank 1; 7. Sedimentation tank 2; 71. Dosing chamber 2; 72. Sedimentation chamber; 73. Stirring mechanism C; 74. Water distribution pipe; 741. Connecting pipe; 742. Water distribution hole; 75. Sludge hopper; 76. Drain pipe 2; 8. Solenoid three-way valve A; 9. Solenoid valve 1; 10. Solenoid three-way valve B; 11. Solenoid three-way valve C; 12. Connecting branch pipe A; 13. Solenoid valve 2; 14. Connecting branch pipe B; 15. Solenoid valve 3; 16. Connecting branch pipe C; 17. Solenoid three-way valve D. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example

[0021] See also Figure 1-9 The utility model provides a technical solution: a movable sewage station for treating aquaculture wastewater, comprising an air floatation machine 1, a biological reaction tank 1 2, a biological reaction tank 2 3, a biological reaction tank 3 4, a biological reaction tank 4 5, a sedimentation tank 1 6 and a sedimentation tank 2 7;

[0022] The flotation machine 1 is provided with a dissolved air generator 106, and the dissolved air generator 106 is connected to a dissolved air releaser provided inside the flotation machine 1; the flotation machine 1 is provided with a dosing chamber 101 and an air flotation chamber 103 which are interconnected, and the dosing chamber 101 is close to the water inlet of the flotation machine 1, and a stirring mechanism A102 for dosing and mixing is provided in the dosing chamber 101; a scraping mechanism 104 is provided at the top of the air flotation chamber 103, and a slag discharge pipe 105 is provided at the end of the scraping mechanism 104 on the flotation machine 1; a sewage discharge pipe A107 is provided at the bottom of the flotation machine 1;

[0023] The biological reaction tank 1 2 is provided with a plurality of stirring mechanisms B22 for anaerobic reaction of microorganisms, a plurality of microporous aeration devices 21 are provided at the inner bottom of the biological reaction tank 1 2, and the structures of the biological reaction tank 2 3, the biological reaction tank 3 4 and the biological reaction tank 4 5 are the same as those of the biological reaction tank 1 2;

[0024] The sedimentation tank 2 7 is provided with a dosing chamber 2 71 and a sedimentation chamber 72 which are interconnected. The dosing chamber 2 71 is close to the water inlet of the sedimentation tank 2 7, and a stirring mechanism C73 for dosing and mixing is provided in the dosing chamber 2 71. A sludge hopper 75 and a sewage pipe 2 76 are also provided at the bottom of the sedimentation tank 2 7, and the structures of the sedimentation tank 1 6 and the sedimentation tank 2 7 are the same;

[0025] The water inlets of the bioreactor tank 1 2 and the bioreactor tank 2 3 are connected to the water outlet of the flotation machine 1 through pipelines and electromagnetic three-way valve A8, and the water outlets of the bioreactor tank 1 2 and the bioreactor tank 2 3 are respectively connected to the water inlets of the bioreactor tank 3 4 and the bioreactor tank 4 5 through electromagnetic valve 1 9 and pipelines. The water outlets of the bioreactor tank 3 4 and the bioreactor tank 4 5 are connected to each other through pipelines and electromagnetic three-way valve B10. The sedimentation tank 1 6 and the sedimentation tank 2 7 are connected to the electromagnetic three-way valve B11 through pipelines and electromagnetic three-way valve C12. 0 redundant pipe connection; the pipe connected to the water outlet end of the bioreactor tank 2 and the pipe connected to the water inlet end of the bioreactor tank 2 3 are connected to each other through a connecting branch pipe A12 and an electromagnetic valve 2 13, the pipe connected to the water outlet end of the bioreactor tank 3 4 and the pipe connected to the water inlet end of the bioreactor tank 4 5 are connected to each other through a connecting branch pipe B14 and an electromagnetic valve 3 15, and the pipe connected to the outlet end of the sedimentation tank 6 and the pipe connected to the water inlet end of the sedimentation tank 2 7 are connected to each other through a connecting branch pipe C16 and an electromagnetic three-way valve D17.

[0026] Working principle:

[0027] Treatment of the first sewage condition: When the total phosphorus content in the wastewater is low or the effluent from the sewage station has a low phosphorus removal requirement, the water inlet of the flotation machine 1 is connected to an external regulating tank, and the solenoid valve 2 13 and the solenoid valve 3 15 are closed;

[0028] The sewage in the regulating tank is transported to the flotation machine 1 by a water pump, and a flocculating agent is added to the dosing chamber 101. The stirring mechanism A102 mixes the sewage and the agent and flows into the flotation chamber 103, and the dissolved air is generated by the dissolved air generator 106, and the dissolved air is released by the dissolved air releaser in the flotation chamber 103 to generate a large number of micro bubbles. The bubbles adsorb the dirt in the sewage and suspend it. The suspended matter is scraped off by the scraping mechanism 104 and discharged through the slag discharge pipe 105. The sediment in the flotation chamber 103 is discharged through the sewage discharge pipe A107; the sewage treated by the flotation machine 1 flows into the biological reaction tank 1 2 and the biological reaction tank 2 3 after passing through the electromagnetic three-way valve A8. At this time, the biological reaction tank 1 2 and the biological reaction tank 2 3 are used as anoxic tanks for denitrification or anaerobic tanks for removing organic matter. The stirring in the biological reaction tank 1 2 and the biological reaction tank 2 3 is turned on. Mechanism B22, and close the microporous aeration device 21 in the bioreactor tank 1 2 and the bioreactor tank 2 3, the sewage treated in the bioreactor tank 1 2 and the bioreactor tank 2 3 flows into the bioreactor tank 3 4 and the bioreactor tank 4 5 respectively, at this time, the bioreactor tank 3 4 and the bioreactor tank 4 5 are both used as aerobic tanks, the microporous aeration device 21 in the bioreactor tank 3 4 and the bioreactor tank 4 5 is opened, and the stirring mechanism B22 is closed, and the sewage treated in the bioreactor tank 3 4 and the bioreactor tank 4 5 flows into the sedimentation tank 1 6 and the sedimentation tank 2 7 after passing through the electromagnetic three-way valve B10 and the electromagnetic three-way valve C11. At this time, the sedimentation tank 1 6 and the sedimentation tank 2 7 are both used as secondary sedimentation tanks to settle the sewage, and the stirring mechanism C73 in the sedimentation tank 1 6 and the sedimentation tank 2 7 is closed, and the sludge in the sedimentation tank 1 6 and the sedimentation tank 2 7 settled in the sludge hopper 75 is discharged through the sewage discharge pipe 2 76.

[0029] Treatment of the second sewage condition: When the total phosphorus content in the wastewater is high or the effluent from the sewage station has high requirements for phosphorus removal, the water inlet of the flotation machine 1 is connected to the external regulating tank, the pipe port connected to the water inlet end of the biological reactor 2 3 is closed, the solenoid valve 1 9 connected to the water outlet end of the biological reactor 2 is closed, the pipe port connected to the water outlet end of the solenoid three-way valve B10 and the water outlet end of the biological reactor 3 4 is closed, the pipe port connected to the water inlet end of the solenoid three-way valve C11 and the sedimentation tank 2 7 is closed, the pipe port of the solenoid three-way valve D17 for the drainage port of the sedimentation tank 6 is closed, and the solenoid valve 2 13 and the solenoid valve 3 15 are opened;

[0030] The sewage in the regulating tank is transported to the flotation machine 1 through a water pump. The sewage treated by the flotation machine 1 flows into the bioreactor 2 after passing through the electromagnetic three-way valve A8. At this time, the bioreactor 2 is used as a hydrolysis tank, the microporous aeration device 21 in the bioreactor 2 is closed, and the stirring mechanism B22 is opened; the sewage treated in the bioreactor 2 flows into the bioreactor 3 through the connecting branch pipe A12 and the electromagnetic valve 213. At this time, the bioreactor 3 is used as an anaerobic tank, the microporous aeration device 21 in the bioreactor 3 is closed, and the stirring mechanism B22 is opened; the sewage treated in the bioreactor 3 flows into the bioreactor 3 4. At this time, the bioreactor 3 4 is used as an anoxic tank, the microporous aeration device 21 in the bioreactor 3 4 is closed, and the stirring mechanism B22 is opened; the sewage treated in the bioreactor 3 flows into the bioreactor 4 through the connecting branch pipe B14 and The solenoid valve three 15 flows into the biological reaction tank four 5. At this time, the biological reaction tank four 5 is used as an aerobic tank, the microporous aeration device 21 in the biological reaction tank four 5 is opened, and the stirring mechanism B22 is closed; the sewage treated in the biological reaction tank four 5 flows into the sedimentation tank one 6 after passing through the electromagnetic three-way valve B10 and the electromagnetic three-way valve C11. At this time, the sedimentation tank one 6 is used as the second sedimentation tank to sediment the sewage, and the stirring mechanism C73 in the sedimentation tank one 6 is closed; the sewage treated in the sedimentation tank one 6 flows into the sedimentation tank two 7 through the connecting branch pipe C16 and the electromagnetic three-way valve D17. At this time, the sedimentation tank two 7 is used as the third sedimentation tank to further treat the sewage, and the phosphorus removal agent is added into the dosing chamber two 71 in the sedimentation tank two 7, and the agent and the sewage are stirred and mixed by the stirring mechanism C73 in the sedimentation tank two 7, and finally the sewage is discharged through the outlet of the sedimentation tank two 7.

[0031] Furthermore, a water distribution pipe 74 is horizontally provided in the sedimentation chamber 72 at a position close to the dosing chamber 2 71, and the setting direction of the water distribution pipe 74 is perpendicular to the water flow direction in the sedimentation chamber 72. A connecting pipe 741 is provided at the water inlet end of the water distribution pipe 74, and the connecting pipe 741 is connected to the dosing chamber 2 71. A plurality of water distribution holes 742 are evenly spaced at the lower end of the water distribution pipe 74; through the water distribution pipe 74, the sewage in the dosing chamber 2 71 can flow into the sedimentation chamber 72 more evenly and smoothly, thereby improving the sedimentation effect of the sedimentation tank 1 6 and the sedimentation tank 2 7.

[0032] The movable sewage station for treating aquaculture wastewater disclosed in this embodiment has microporous aeration devices 21 and stirring mechanisms B22 arranged inside bioreactor tank 1 2, bioreactor tank 2 3, bioreactor tank 3 4 and bioreactor tank 4 5, so that bioreactor tank 1 2, bioreactor tank 2 3, bioreactor tank 3 4 and bioreactor tank 4 5 can all be used as anaerobic tanks, anoxic tanks or aerobic tanks, and since sedimentation tank 1 6 and sedimentation tank 2 7 are both provided with dosing mixing chamber 2 71 and stirring mechanism C73, sedimentation tank 1 6 and sedimentation tank 2 7 can both be used as secondary sedimentation tanks or tertiary sedimentation tanks. The sewage station is flexible and convenient to use and adjust, can treat sewage under different working conditions, and improve the efficiency and effect of sewage treatment.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A mobile sewage treatment plant for treating aquaculture wastewater, comprising an air flotation machine, a bioreactor tank 1, a bioreactor tank 2, a bioreactor tank 3, a bioreactor tank 4, a sedimentation tank 1 and a sedimentation tank 2, characterized in that: The air flotation machine is provided with a dissolved air generator, and the dissolved air generator is connected to a dissolved air releaser provided inside the air flotation machine; the biological reaction tank 1 is provided with a plurality of stirring mechanisms B for anaerobic reaction of microorganisms, the internal bottom end of the biological reaction tank 1 is provided with a plurality of microporous aeration devices, and the structure of the biological reaction tank 2, the biological reaction tank 3 and the biological reaction tank 4 is the same as that of the biological reaction tank 1; the sedimentation tank 2 is provided with a stirring mechanism C for adding medicine and mixing, and the bottom of the sedimentation tank 2 is also provided with a sludge hopper and a sewage discharge pipe 2, and the structures of the sedimentation tank 1 and the sedimentation tank 2 are the same; The water inlets of the biological reaction tank 1 and the biological reaction tank 2 are connected to the water outlet of the air flotation machine through pipelines and electromagnetic three-way valve A, the water outlets of the biological reaction tank 1 and the biological reaction tank 2 are respectively connected to the water inlets of the biological reaction tank 3 and the biological reaction tank 4 through electromagnetic valve 1 and pipelines, the water outlets of the biological reaction tank 3 and the biological reaction tank 4 are mutually connected through pipelines and electromagnetic three-way valve B, the sedimentation tank 1 and the sedimentation tank 2 are connected to the redundant pipe openings of the electromagnetic three-way valve B through pipelines and electromagnetic three-way valve C; the pipeline connected to the water outlet end of the biological reaction tank 1 and the pipeline connected to the water inlet end of the biological reaction tank 2 are mutually connected through connecting branch pipe A and electromagnetic valve 2, the pipeline connected to the water outlet end of the biological reaction tank 3 and the pipeline connected to the water inlet end of the biological reaction tank 4 are mutually connected through connecting branch pipe B and electromagnetic valve 3, and the pipeline connected to the outlet end of the sedimentation tank 1 and the pipeline connected to the water inlet end of the sedimentation tank 2 are mutually connected through connecting branch pipe C and electromagnetic three-way valve D.

2. A mobile sewage treatment plant for treating aquaculture wastewater according to claim 1, characterized in that: The flotation machine is provided with a dosing chamber 1 and an air flotation chamber which are interconnected, and the dosing chamber 1 is close to the water inlet of the flotation machine. The dosing chamber 1 is provided with a stirring mechanism A for dosing and mixing; a scraping mechanism is provided at the top of the air flotation chamber, and a slag discharge pipe is provided at the end of the scraping mechanism on the flotation machine; a sewage discharge pipe A is provided at the bottom of the air flotation machine.

3. A mobile sewage treatment plant for treating aquaculture wastewater according to claim 1, characterized in that: The second sedimentation tank is provided with a second dosing chamber and a sedimentation chamber which are interconnected. The second dosing chamber is close to the water inlet of the second sedimentation tank, and the stirring mechanism C is arranged in the second dosing chamber.

4. A mobile sewage treatment plant for treating aquaculture wastewater according to claim 1, characterized in that: A water distribution pipe is horizontally arranged in the sedimentation chamber at a position close to the second dosing chamber, and the arrangement direction of the water distribution pipe is perpendicular to the water flow direction in the sedimentation chamber. A connecting pipe is arranged at the water inlet end of the water distribution pipe, and the connecting pipe is connected with the second dosing chamber. A plurality of water distribution holes are evenly spaced at the lower end of the water distribution pipe.

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