CN218290638U - Breeding wastewater treatment system - Google Patents
Breeding wastewater treatment system Download PDFInfo
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- CN218290638U CN218290638U CN202221238870.9U CN202221238870U CN218290638U CN 218290638 U CN218290638 U CN 218290638U CN 202221238870 U CN202221238870 U CN 202221238870U CN 218290638 U CN218290638 U CN 218290638U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The utility model discloses a culture wastewater treatment system, which comprises a solid-liquid separator which is communicated in sequence, wherein a water inlet of the solid-liquid separator is provided with a grid layer; a biogas digester; a regulating reservoir; a fluidized bed crystallization reaction tank; an A/O biochemical pool; the aquaculture wastewater treatment system also comprises a sludge concentration tank, and a first sludge pipeline and a second sludge pipeline which are communicated with each other are respectively arranged between the sludge concentration tank and the solid-liquid separator and between the sludge concentration tank and the A/O biochemical tank. According to the utility model discloses a breed effluent disposal system, easy operation, it is effectual to breed waste water treatment, can realize the cyclic utilization of resource phosphorus resource.
Description
Technical Field
The utility model relates to a waste water treatment field especially relates to a breed effluent disposal system.
Background
The aquaculture wastewater mainly comprises livestock and poultry manure, urine and part of field rain sewage, which contains high-concentration organic matters, nitrogen and phosphorus nutrient salts, trace heavy metals and toxic organic matters, and if the wastewater is directly discharged without effective treatment or is discharged without reaching the standard, the surface water body is seriously polluted, and a black and odorous water body and a eutrophic water body are formed. And pathogenic microorganisms contained in the microbial inoculum can be diffused and spread through water bodies and life bodies in the water, so that the health of people and livestock is harmed.
Phosphorus is known to be a key factor causing eutrophication of water bodies, and is a pollutant to be removed urgently in wastewater. Meanwhile, phosphorus is a nutrient element for human beings and other life bodies to live on, and is a non-renewable scarce resource. The traditional culture wastewater treatment system mainly removes phosphorus in wastewater through a biological method, but the biological method cannot effectively treat culture wastewater with high pollutant concentration, the water quality of effluent has high phosphorus content, the phosphorus content entering natural water is higher, and black and odorous water and eutrophication water are easy to form.
Therefore, it is necessary to provide a cultivation wastewater treatment system capable of effectively recycling phosphorus in cultivation wastewater.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a breed effluent disposal system, easy operation, waste water treatment is effectual, can realize the cyclic utilization of phosphorus resource, reduces later stage mud load.
According to the utility model discloses a system for treating aquaculture wastewater, which comprises a solid-liquid separator, wherein the solid-liquid separator is provided with a water inlet and a water outlet, and the water inlet of the solid-liquid separator is provided with a grid layer;
the methane tank is communicated with a water outlet of the solid-liquid separator;
the adjusting tank is communicated with a water outlet of the methane tank;
the fluidized bed crystallization reaction tank is communicated with the water outlet of the regulating tank;
the A/O biochemical tank is communicated with a water outlet of the fluidized bed crystallization reaction tank;
the sewage treatment device comprises a sewage concentration tank, wherein a first sludge pipeline communicated with the solid-liquid separator is arranged between the sewage concentration tank and the A/O biochemical tank, and a second sludge pipeline communicated with the A/O biochemical tank is arranged between the sewage concentration tank and the solid-liquid separator.
According to the utility model discloses breed effluent disposal system has following beneficial effect at least: solid matters such as excrement and the like are separated from the wastewater to be treated through a solid-liquid separator, so that the subsequent wastewater treatment efficiency can be improved; by arranging the methane tank, the biodegradability of the wastewater is improved, and the subsequent treatment is facilitated; the fluidized bed crystallization reaction tank is combined with the A/O biochemical tank, so that the phosphorus removal effect is improved, and the quality of the effluent reaches the standard, wherein phosphorus in the wastewater is further recovered by the fluidized bed crystallization reaction tank, so that the phosphorus concentration of the wastewater entering the A/O biochemical tank is in a concentration range suitable for the treatment of the A/O biochemical tank, the phosphorus treatment load of the A/O biochemical tank is reduced, and the phosphorus treatment efficiency is increased; the sludge concentration tank is arranged, so that the sludge can be discharged in time, and the treatment efficiency of the solid-liquid separator and the A/O biochemical tank is improved.
According to some embodiments of the present invention, a biogas collecting device is provided in the biogas tank, the biogas collecting device having a biogas discharge port communicating with the outside of the biogas tank.
According to some embodiments of the present invention, a third sludge pipeline is provided between the A/O biochemical tank and the biogas digester.
According to some embodiments of the utility model, the fluidized bed crystallization reaction tank includes:
the medicine adding unit is provided with a first medicine adding port and a medicine outlet;
the reaction unit is provided with a second medicine adding port and a discharge port, a water inlet of the reaction unit is communicated with a water outlet of the regulating tank, a water outlet of the reaction unit is communicated with a water inlet of the A/O biochemical tank, and the second medicine adding port of the reaction unit is communicated with the medicine outlet of the medicine adding unit;
the recycling unit is provided with a feeding hole, and the feeding hole is communicated with the discharging hole of the reaction unit.
According to some embodiments of the present invention, the fluidized bed crystallization reaction tank further comprises an automatic control unit, the automatic control unit comprises:
the pH detection component is positioned in the reaction unit, can be contacted with the wastewater and is used for detecting the pH of the wastewater in the reaction unit;
and the control assembly is electrically connected with the dosing unit and the pH detection assembly respectively.
According to the utility model discloses a some embodiments, recovery unit is connected with drying device, is used for right recovery unit's content is dried.
According to the utility model discloses a some embodiments, the delivery port in the biochemical pond of AO is provided with nitrogen phosphorus detector and valve, nitrogen phosphorus detector is located the valve with between the biochemical pond of AO, can contact with rivers.
According to the utility model discloses a some embodiments, the delivery port of equalizing basin is provided with flow control device to control the rivers size of going out.
According to some embodiments of the utility model, still be equipped with the pump, the equalizing basin with the reaction unit passes through the pump communicates mutually, is used for the drive waste water in the equalizing basin gets into the reaction unit.
According to some embodiments of the utility model, the mud outlet of the sludge thickening tank is communicated with the mud inlet of the sludge dewatering equipment.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a connection diagram of a cultivation wastewater treatment system according to an embodiment of the present invention;
fig. 2 is a connection diagram of each unit of the fluidized bed crystallization reaction tank 105 according to an embodiment of the present invention.
Reference numerals:
a grid layer 101, a solid-liquid separator 102, a methane tank 103, a regulating tank 104, a fluidized bed crystallization reaction tank 105, an A/O biochemical tank 106 and a sludge concentration tank 107;
a dosing unit 111, a reaction unit 112, and a recovery unit 113.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it should be understood that the directional descriptions, such as the directions or positional relationships indicated by upper, lower, front, rear, left, right, etc., are based on the directions or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, but not for indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention.
In the description of the present invention, a plurality means two or more. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless there is an explicit limitation, the terms such as setting, installing, connecting, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meaning of the terms in the present invention by combining the specific contents of the technical solution.
Referring to fig. 1, according to the utility model discloses breed effluent disposal system, according to the rivers direction, include: the system comprises a solid-liquid separator 102, wherein the solid-liquid separator 102 is provided with a water inlet and a water outlet, a grid layer 101 is arranged at the water inlet of the solid-liquid separator 102, the solid-liquid separator 102 is used for separating cultivation wastewater into solid matters such as excrement and wastewater, the solid matters such as excrement and wastewater enter a sludge concentration tank 107, the wastewater enters a methane tank 103 for further treatment so as to reduce the subsequent wastewater treatment difficulty, and the grid layer 101 is used for intercepting large-volume suspended or floating pollutants in the wastewater, so that the generation of sludge is reduced, and the rear-end treatment pressure is further reduced; the methane tank 103 is communicated with a water outlet of the solid-liquid separator 102, part of organic pollutants in the wastewater are removed through anaerobic action in the methane tank 103, macromolecular degradation-resistant substances are converted into degradation-resistant substances, the polyphosphate in the wastewater is hydrolyzed into normal acid salt, and the biodegradability of the wastewater is improved; the adjusting tank 104 is communicated with the water outlet of the methane tank 103 and is used for balancing water quantity and water quality, improving the buffering capacity on sewage treatment load, preventing the load of a treatment system from changing rapidly and ensuring the stable proceeding of subsequent reaction; the fluidized bed crystallization reaction tank 105 is communicated with the water outlet of the regulating tank 104, and is used for removing and recovering nitrogen and phosphorus pollutants in the wastewater; the A/O biochemical tank 106 is communicated with the water outlet of the fluidized bed crystallization reaction tank 105, is used for a treatment tank for an A/O (aerobic/Oxic) process, namely an Anoxic and aerobic sewage treatment process, and is used for further removing nitrogen and phosphorus pollutants in wastewater; a sludge concentration tank 107, a first sludge pipeline communicated between the sludge concentration tank 107 and the solid-liquid separator 102, a second sludge pipeline communicated between the sludge concentration tank 107 and the A/O biochemical tank 106, wherein the sludge concentration tank 107 is used for concentrating and storing sludge discharged from the solid-liquid separator 102 and the A/O biochemical tank 106, and improving the working efficiency of the solid-liquid separator 102 and the A/O biochemical tank 106 by discharging the sludge in time. The treated wastewater reaching the standard can be discharged into natural water bodies such as an ecological pond and the like for field irrigation.
Specifically, the solid-liquid separator 102, the methane tank 103, the regulating tank 104, the fluidized bed crystallization reaction tank 105 and the A/O biochemical tank 106 are sequentially communicated through a pipeline. It is understood that the communication modes among the solid-liquid separator 102, the methane tank 103, the regulating tank 104, the fluidized bed crystallization reaction tank 105 and the A/O biochemical tank 106 include but are not limited to communication through pipelines, and overflow structures can be arranged.
Specifically, the solid-liquid separator 102 includes, but is not limited to, a box filter press, a stack filter press, a centrifuge. The present embodiment is not particularly limited, and those skilled in the art can select an appropriate solid-liquid separator 102 as needed.
Specifically, a pressure detection component and a pressure control component are arranged in the methane tank 103 and used for monitoring and controlling the pressure in the methane tank 103. When the waste water in the methane tank 103 is too much and cannot be discharged into the regulating tank 104 in time, the pressure detection part detects that the pressure in the methane tank 103 is too high, and the pressure control part can discharge part of the gas in the methane tank 103 so as to relieve the problem of the too high pressure in the methane tank 103.
Specifically, a biogas collecting device is arranged in the biogas tank 103, and the biogas collecting device is provided with a biogas discharge port communicated with the outside of the biogas tank 103. The marsh gas collecting device can comprise a marsh gas pressurizing fan, a marsh gas conveying pipeline and a dehydrating device, wherein the marsh gas pressurizing fan conveys collected marsh gas into the dehydrating device through the marsh gas conveying pipeline by pressurizing so as to remove moisture in the marsh gas, and finally the marsh gas is discharged through a marsh gas discharging port.
Referring to fig. 2, the fluidized-bed crystallization reaction tank 105 includes: the dosing unit 111, the dosing unit 111 has a first dosing port and a drug outlet port communicated with the dosing unit 111, and the first dosing port is used for adding drugs; a reaction unit 112, wherein the reaction unit 112 is provided with a second dosing port and a discharge port which are communicated with the reaction unit 112, a water inlet of the reaction unit 112 is communicated with a water outlet of the regulating tank 104, a water outlet of the reaction unit 112 is communicated with a water inlet of the A/O biochemical tank, the second dosing port of the reaction unit 112 is communicated with a dosing outlet of the dosing unit 111, and in the reaction unit 112, nitrogen and phosphorus pollutants, a magnesium source, a nitrogen source and the like are mutually collided and crystallized through fluidization to form a particle slow release fertilizer, so that phosphorus and nitrogen elements in the wastewater are effectively recovered; and the recovery unit 113, the recovery unit 113 having a feed inlet communicated with the recovery unit 113, the feed inlet being communicated with the discharge outlet of the reaction unit 112, for recovering the slow release fertilizer obtained in the reaction unit 112.
It can be understood that the number of the first dosing port and the number of the medicine outlets of the dosing unit 111 may be plural, and the present invention does not limit the number of the first dosing port and the number of the medicine outlets. Different medicines can be added into the medicine adding unit 111 through different medicine adding ports and added into the reaction unit 112 through different medicine outlet ports. Therefore, mixing of different medicines can be avoided, and the dosage of different medicines can be conveniently controlled, so that nitrogen and phosphorus pollutants in wastewater can be better removed. Such drugs include, but are not limited to, sources of phosphorus, magnesium, nitrogen, and bases.
Specifically, the medicine outlet of the medicine adding unit 111 is communicated with the second medicine adding port of the reaction unit 112 through a pump, and is used for conveying the medicine of the medicine adding unit 111 to the reaction system.
Specifically, the fluidized-bed crystallization reaction tank 105 further includes an automatic control unit including: a pH detecting assembly, which is located in the reaction unit 112, can contact with the wastewater, and is used for detecting the pH of the wastewater in the reaction unit 112; and the control assembly is electrically connected with the dosing unit 111 and the pH detection assembly respectively and is used for controlling the dosing speed of the dosing unit 111 according to the pH data detected by the pH detection assembly. It will be appreciated that the control assembly comprises a PLC controller. The PLC controller can automatically control whether the medicine adding unit 111 adds medicine according to the data through the detected pH condition of the wastewater in the reaction unit 112 and the medicine adding amount, the intelligent degree is high, and the wastewater treatment effect is further improved.
Specifically, the fluidized-bed crystallization reaction tank 105 is further provided with a circulation device which communicates the lower portion with the upper portion of the reaction unit 112 to circulate the water stream in the reaction unit 112 from the lower portion to the upper portion. The circulating device specifically comprises a power device and a water pipe, wherein the power device is used for providing power to circularly convey the wastewater in the reaction unit 112 from the lower part to the upper part of the reaction unit 112 through the water pipe.
Specifically, a pump is further provided, and the regulating reservoir 104 is communicated with the reaction unit 112 through the pump, and is used for driving the wastewater in the regulating reservoir 104 to enter the reaction unit 112. It is understood that the water outlet of the regulating reservoir 104 may also be provided with a flow regulating device. Used for controlling the flow of the wastewater entering the reaction tank of the fluidized crystallization bed. A stirring device can be arranged in the regulating tank 104 for stirring to balance the water quantity and the water quality. For example, the wastewater may also enter the reaction unit 112 from the regulating reservoir 104 by way of overflow, and the circulation of the wastewater is driven by arranging a pump, which is beneficial to controlling the circulation speed of the wastewater.
Specifically, the recovery unit 113 is connected with a drying device. The drying device may be selected from an air-energy heat pump drying device, an electric heating drying device, a solar drying device, a thermal radiation drying device, or a combination thereof. The skilled person can select the drying means as usual as long as it can dry the content in the recovery unit 113.
Referring to fig. 2, the reaction unit 112 is provided with an overflow weir, and the supernatant in the reaction unit 112 flows into the a/O biochemical pool 106 through the overflow weir.
Specifically, the a/O biochemical pool 106 includes an anoxic biochemical pool and an aerobic biochemical pool which are sequentially communicated. The wastewater entering the A/O biochemical tank 106 firstly enters the anoxic biochemical tank, and after anaerobic decomposition for a certain time, part of BOD is removed, and part of nitrogen-containing compounds are converted into N 2 Releasing and denitrifying; then, the treated wastewater enters an aerobic biochemical tank from the anoxic biochemical tank so as to further remove BOD, nitrify and absorb part of residual phosphorus and the like. It is understood that the a/O biochemical cells 106 may include a combination of sets of anoxic biochemical cells and aerobic biochemical cells. So as to improve the treatment efficiency of the waste water. Specifically, the number of the anoxic biochemical tanks and the aerobic biochemical tanks to be combined is selected by those skilled in the art as required.
It should be noted that a third sludge pipeline communicated with the methane tank 103 is arranged between the a/O biochemical tank 106 and the methane tank 103, and is used for returning part of the sludge to the methane tank 103, and the sludge is subjected to anaerobic fermentation in the methane tank to generate methane, which can be used as good energy.
Specifically, a nitrogen and phosphorus detector and a valve are arranged at a water outlet of the A/O biochemical pool 106, and the nitrogen and phosphorus detector is positioned between the valve and the A/O biochemical pool 106 and can be in contact with water flow. The nitrogen and phosphorus detector is used for monitoring whether the concentration of nitrogen and phosphorus in the treated wastewater reaches the standard and can be discharged. The valve is used for controlling the circulation of the waste water. It is understood that the valve may be a manual valve or an electric valve. The electrically operated valve may be operated by a control device to operate a solenoid valve or an electrically operated switch.
It can be understood that the water outlet of the aerobic tank can be connected with the water inlet of the anoxic tank through a return pipe. If the nitrogen and phosphorus detector detects that the concentration of nitrogen and phosphorus in the treated wastewater does not reach the standard, the wastewater can be refluxed into the anoxic tank through the reflux pipe for circular treatment.
Specifically, the number of the grid layers 101 is multiple, and the grid layers are used for removing large floating substances such as branches, hay, plastic bags and the like in the wastewater so as to avoid influencing subsequent solid-liquid separation. It should be noted that the grid layer 101 is detachable, so as to facilitate replacement of the grid layer 101. The grating layer 101 may include a filter screen and a motor, and the motor may drive the filter screen to rotate, so that each part of the filter screen can be used to filter the wastewater.
Specifically, the sludge outlet of the sludge concentration tank 107 is communicated with the sludge inlet of the sludge dewatering equipment. The sludge in the sludge concentration tank 107 can be used as a fertilizer for green plants after being treated by sludge dewatering equipment.
The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Claims (10)
1. A aquaculture wastewater treatment system comprising:
the water inlet of the solid-liquid separator (102) is provided with a grid layer (101);
the methane tank (103), the methane tank (103) is communicated with the water outlet of the solid-liquid separator (102);
the adjusting tank (104), the adjusting tank (104) is communicated with the water outlet of the methane tank (103);
the fluidized bed crystallization reaction tank (105), the fluidized bed crystallization reaction tank (105) is communicated with the water outlet of the regulating tank (104);
the A/O biochemical tank (106), the A/O biochemical tank (106) is communicated with the water outlet of the fluidized bed crystallization reaction tank (105);
the sewage treatment system comprises a sewage concentration tank (107), a first sewage pipeline communicated with the solid-liquid separator (102) is arranged between the sewage concentration tank (107), and a second sewage pipeline communicated with the A/O biochemical tank (106) is arranged between the sewage concentration tank (107).
2. The aquaculture wastewater treatment system according to claim 1, wherein a biogas collecting device is arranged in the biogas tank (103), and the biogas collecting device is provided with a biogas discharge port communicated with the outside of the biogas tank (103).
3. The aquaculture wastewater treatment system according to claim 1, wherein a third sludge pipeline is arranged between the A/O biochemical tank (106) and the biogas digester (103) for communication.
4. The aquaculture wastewater treatment system of claim 1, wherein the fluidized bed crystallization reaction tank (105) comprises:
the medicine adding unit (111), the medicine adding unit (111) is provided with a first medicine adding port and a medicine outlet;
the reaction unit (112) is provided with a second dosing port and a discharge port, a water inlet of the reaction unit (112) is communicated with a water outlet of the regulating tank (104), a water outlet of the reaction unit (112) is communicated with a water inlet of the A/O biochemical tank, and the second dosing port of the reaction unit (112) is communicated with the dosing port of the dosing unit (111);
a recovery unit (113), wherein the recovery unit (113) is provided with a feeding hole, and the feeding hole is communicated with the discharging hole of the reaction unit (112).
5. The aquaculture wastewater treatment system according to claim 4, wherein the fluidized bed crystallization reaction tank (105) further comprises an automatic control unit comprising:
a pH detection assembly, located within the reaction unit (112), capable of contacting the wastewater, for detecting the pH of the wastewater within the reaction unit (112);
and the control assembly is electrically connected with the dosing unit (111) and the pH detection assembly respectively.
6. The aquaculture wastewater treatment system of claim 4, wherein the recovery unit (113) is connected with a drying device for drying the content of the recovery unit (113).
7. The aquaculture wastewater treatment system of claim 1, wherein the water outlet of the A/O biochemical pond (106) is provided with a nitrogen and phosphorus detector and a valve, and the nitrogen and phosphorus detector is positioned between the valve and the A/O biochemical pond (106) and can be contacted with water flow.
8. The aquaculture wastewater treatment system of claim 1, wherein the outlet of the conditioning tank (104) is provided with a flow regulating device to control the magnitude of the outlet water flow.
9. The aquaculture wastewater treatment system of claim 4, further comprising a pump, wherein the conditioning tank (104) is in communication with the reaction unit (112) via the pump for driving wastewater in the conditioning tank (104) into the reaction unit (112).
10. The aquaculture wastewater treatment system according to claim 1, wherein the sludge outlet of the sludge concentration tank (107) is communicated with the sludge inlet of the sludge dewatering device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221238870.9U CN218290638U (en) | 2022-05-20 | 2022-05-20 | Breeding wastewater treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221238870.9U CN218290638U (en) | 2022-05-20 | 2022-05-20 | Breeding wastewater treatment system |
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| Publication Number | Publication Date |
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| CN218290638U true CN218290638U (en) | 2023-01-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202221238870.9U Active CN218290638U (en) | 2022-05-20 | 2022-05-20 | Breeding wastewater treatment system |
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| CN (1) | CN218290638U (en) |
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- 2022-05-20 CN CN202221238870.9U patent/CN218290638U/en active Active
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