CN216614173U - Sludge reduction reactor for aquaculture wastewater treatment - Google Patents
Sludge reduction reactor for aquaculture wastewater treatment Download PDFInfo
- Publication number
- CN216614173U CN216614173U CN202123141053.XU CN202123141053U CN216614173U CN 216614173 U CN216614173 U CN 216614173U CN 202123141053 U CN202123141053 U CN 202123141053U CN 216614173 U CN216614173 U CN 216614173U
- Authority
- CN
- China
- Prior art keywords
- sludge
- area
- zone
- granulation
- aquaculture wastewater
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Biological Treatment Of Waste Water (AREA)
Abstract
The utility model provides a sludge reduction reactor for treating aquaculture wastewater, which comprises a cyclone separation device, an anaerobic digestion area, an autotrophic nitrogen removal area and a sludge granulation area, wherein the anaerobic digestion area, the autotrophic nitrogen removal area and the sludge granulation area are sequentially communicated, the aquaculture wastewater treated by the anaerobic digestion area enters the anaerobic digestion area through a first overflow structure, and the aquaculture wastewater treated by the autotrophic nitrogen removal area enters the sludge granulation area through a second overflow structure; the sludge granulation area is divided into a sludge area and a granulation area by a partition plate, and the aquaculture wastewater to be treated enters the granulation area after being treated by the sludge area; the cyclone separation device is arranged in the granulation area and drives the aquaculture wastewater to be treated in the granulation area to carry out cyclone centrifugation so as to enable flocculent sludge in the aquaculture wastewater to be treated to be aggregated into crystal nuclei of granular sludge. The utility model efficiently converts common activated sludge into granular sludge, avoids the generation of a large amount of common activated sludge, thereby reducing the sludge treatment cost and further reducing the wastewater treatment cost.
Description
Technical Field
The embodiment of the utility model relates to the technical field of wastewater treatment, in particular to a sludge reduction reactor for aquaculture wastewater treatment.
Background
China is the first major country of global carbon emission at present, the emission accounts for more than 25% of the global emission, wherein the carbon emission accounts for 1% -2% of the total emission of the whole society in the wastewater treatment industry, and the emission of greenhouse gases generated in the wastewater treatment industry cannot be ignored. According to data investigation of wastewater treatment industry for three years, carbon emission of a wastewater treatment plant in a wastewater treatment unit accounts for 54% of the maximum, and sludge treatment accounts for 24% of the maximum, so that optimization of a wastewater biochemical treatment process and a sludge treatment process is a key way for realizing carbon neutralization of the wastewater treatment plant.
The excess sludge is a byproduct in the wastewater treatment process, a large amount of organic matters, pollutants and nutrient substances in the wastewater are enriched, and the excess sludge has dual attributes of pollution and resources, so that carbon emission reduction in the sludge treatment process has great significance for carbon neutralization in the wastewater treatment industry.
However, the existing wastewater treatment reactor can generate a large amount of common activated sludge (such as flocculent sludge) after treatment, and the treatment of the large amount of common activated sludge needs to invest a large amount of cost, so that the wastewater treatment cost is greatly increased, and the practicability of use is reduced.
SUMMERY OF THE UTILITY MODEL
Aiming at the problems that the conventional wastewater treatment reactor generates a large amount of common activated sludge, needs to invest large treatment cost, greatly increases the wastewater treatment cost, has low practicability and the like, the embodiment of the utility model provides a sludge reduction reactor for aquaculture wastewater treatment.
The technical scheme for solving the technical problems includes that the sludge reduction reactor for treating the aquaculture wastewater comprises a cyclone separation device, an anaerobic digestion area, an autotrophic nitrogen removal area and a sludge granulation area, wherein the anaerobic digestion area is used for providing an anaerobic environment for the aquaculture wastewater to be treated so as to remove COD, the autotrophic nitrogen removal area is used for removing organic matters in the aquaculture wastewater to be treated through an SNAD (selective non-catalytic reduction) process, the sludge granulation area is used for forming granular sludge, the anaerobic digestion area, the autotrophic nitrogen removal area and the sludge granulation area are sequentially communicated, a first overflow structure is arranged at the communication position of the anaerobic digestion area and the autotrophic nitrogen removal area, and the aquaculture wastewater treated by the anaerobic digestion area enters the anaerobic digestion area through the first overflow structure; a second overflow structure is arranged at the communication position of the autotrophic nitrogen removal area and the sludge granulation area, and the culture wastewater treated by the autotrophic nitrogen removal area enters the sludge granulation area through the second overflow structure;
the sludge granulation area is divided into a sludge area and a granulation area by a partition plate, and the culture wastewater from which the organic matters are removed by the autotrophic nitrogen removal area enters the granulation area after being treated by the sludge area; a first baffle plate is arranged in the sludge area, and the flowing state of the aquaculture wastewater to be treated entering the sludge area is adjusted through the first baffle plate; the cyclone separation device is arranged in the granulation zone and drives the to-be-treated aquaculture wastewater in the granulation zone to carry out cyclone centrifugation so as to enable flocculent sludge in the to-be-treated aquaculture wastewater to be gathered to form crystal nuclei of granular sludge.
Preferably, the sludge reduction reactor comprises a first aeration device arranged in the autotrophic nitrogen removal area and a second aeration device arranged in the sludge granulation area, and an anoxic environment is provided for the aquaculture wastewater to be treated in the autotrophic nitrogen removal area through the aeration of the first aeration device; at least one part of the second aeration device is positioned in the sludge area, and the aeration state of the aquaculture wastewater to be treated in the sludge area is adjusted through aeration.
Preferably, the second aeration device comprises an aeration fan, a plurality of aeration chains and a plurality of tubular aerators arranged on the aeration chains, the aeration chains are respectively connected with the aeration fan and uniformly distributed in the sludge area and the granulation area, each tubular aerator is respectively provided with a plurality of uniformly distributed air holes, and the aeration fan and the aeration chains supply air to adjust the dissolved oxygen concentration of the aquaculture wastewater to be treated in the sludge area and the granulation area.
Preferably, the first aeration device is installed at the bottom of the autotrophic nitrogen removal zone, the plurality of aeration chains of the second aeration device are respectively installed and fixed to the sludge granulation zone in a suspended manner, and the plurality of tubular aerators on each aeration chain are spaced from the bottom of the sludge granulation zone by a preset distance.
Preferably, the cyclone separation device comprises a cyclone separator and a lift pump, wherein the cyclone separator is arranged at the bottom of the granulation area, is connected with the lift pump, and drives the aquaculture wastewater to be treated in the granulation area to perform cyclone separation movement under the driving of the lift pump.
Preferably, the anaerobic digestion area comprises a baffle plate assembly for performing solid-liquid separation on the aquaculture wastewater to be treated, the baffle plate assembly comprises a plurality of baffle plate members arranged at the top and the bottom of the anaerobic digestion area, the baffle plate members are distributed at intervals, and at least one baffle plate member arranged at the bottom of the anaerobic digestion area is arranged between every two adjacent baffle plate members arranged at the top of the anaerobic digestion area.
Preferably, the autotrophic nitrogen removal zone comprises a driving motor, a stirrer and an opening for adding suspended biological fillers, wherein the stirrer is fixed at the top of the autotrophic nitrogen removal zone and is connected with the driving motor.
Preferably, the granulation zone comprises a first pumping pipeline for conveying part of the crystal nuclei to the sludge zone and the autotrophic nitrogen removal zone, and the first pumping pipeline is respectively communicated with the bottoms of the granulation zone, the sludge zone and the autotrophic nitrogen removal zone.
Preferably, the autotrophic denitrification zone comprises a second pumping line for conveying a portion of the sludge to the anaerobic digestion zone, and the second pumping line is respectively communicated with the bottom of the autotrophic denitrification zone and the bottom of the anaerobic digestion zone.
Preferably, the second overflow structure is lower than the first overflow structure, and the anaerobic digestion zone comprises a first baffling filter plate arranged in front of the first overflow structure, and the solids in the anaerobic digestion zone are prevented from flowing to the first overflow structure by the first baffling filter plate; the granulation zone comprises a water outlet and a second baffling filter plate arranged in front of the water outlet, and solid matters in the granulation zone are prevented from flowing to the water outlet by the second baffling filter plate;
the sludge reduction reactor comprises a pH value sensor for detecting the pH value of the to-be-treated aquaculture wastewater in the autotrophic nitrogen removal area and a dissolved oxygen sensor for monitoring the dissolved oxygen content of the to-be-treated aquaculture wastewater in the autotrophic nitrogen removal area, and the detection heads of the pH value sensor and the dissolved oxygen sensor are respectively positioned in the autotrophic nitrogen removal area.
The sludge reduction reactor for treating the aquaculture wastewater provided by the embodiment of the utility model has the following beneficial effects: by arranging the anaerobic digestion area and the autotrophic nitrogen removal area, the anaerobic digestion area provides an anaerobic environment to effectively remove COD in the culture wastewater, and the autotrophic nitrogen removal area provides a favorable environment for the SNAD process, so that the SNAD process is ensured to be reliably carried out, and efficient nitrogen removal is realized; in addition, the sludge reduction reactor is also provided with a sludge granulation area, and the sludge granulation area is divided into a sludge area and a granulation area by the partition plate, so that the flowing state of the aquaculture wastewater to be treated can be adjusted by the first baffle plate in the sludge area, the colony structure of the granular sludge is changed, and the sludge granulation process is accelerated; because be provided with cyclone separation device in the granulation district, consequently can be by the centrifugal centrifugation of the pending waste water whirl of breeding of cyclone separation device drive granulation district, thereby make the flocculent mud in the pending waste water of breeding gather the crystal nucleus that forms granular sludge high-efficiently, remaining flocculent mud can enrich fast to the crystal nucleus on, form granular sludge from this, realize the minimizing treatment of mud, with turn into granular sludge with ordinary activated sludge high efficiency, a large amount of ordinary activated sludge's production has been avoided, thereby reduce sludge treatment expense, and then reduce the waste water treatment cost, have higher practicality of use.
Drawings
FIG. 1 is a schematic structural diagram of a sludge reduction reactor for aquaculture wastewater treatment according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
Fig. 1 is a schematic structural diagram of a sludge reduction reactor for aquaculture wastewater treatment according to an embodiment of the present invention, and the sludge reduction reactor for aquaculture wastewater treatment can be applied to the technical field of wastewater treatment, in particular to the treatment of aquaculture wastewater.
The sludge reduction reactor for wastewater treatment of aquaculture in this embodiment includes a cyclone 34, an anaerobic digestion zone 1 for providing an anaerobic environment for wastewater to be treated to remove COD, an autotrophic nitrogen removal zone 2 for removing organic matters in wastewater to be treated by SNAD (Simultaneous nitrosation-anaerobic ammonia oxidation-Denitrification), and a sludge granulation zone 3 for forming granular sludge, i.e., COD of wastewater to be treated can be effectively removed in the anaerobic digestion zone 1.
The SNAD process is a novel denitrification process for treating sewage or wastewater based on an anaerobic ammonia oxidation technology. The outer layer structure of the SNAD granular sludge comprises nitrosobacteria groups, the inner layer structure comprises anaerobic ammonia oxidation bacteria groups and denitrifying bacteria groups, ammonia nitrogen can be oxidized into nitrite nitrogen by the nitrosobacteria groups in the treatment of sewage or wastewater, and then the ammonia oxidation bacteria groups autotrophic remove the ammonia nitrogen and the nitrite nitrogen at the same time. Due to the excellent autotrophic nitrogen removal effect of the SNAD process, the generation of sludge can be effectively reduced, so that the sludge amount is reduced, and the purpose of sludge reduction is achieved.
Furthermore, the anaerobic digestion area 1, the autotrophic nitrogen removal area 2 and the sludge granulation area 3 are sequentially communicated, a first overflow structure 11 is arranged at the communication position of the anaerobic digestion area 1 and the autotrophic nitrogen removal area 2, and the culture wastewater treated by the anaerobic digestion area 1 enters the anaerobic digestion area 1 through the first overflow structure 11, so that the culture wastewater to be treated in the autotrophic nitrogen removal area 2 can be prevented from flowing back to the anaerobic digestion area 1 through the first overflow structure 11, and meanwhile, the culture wastewater to be treated in the anaerobic digestion area 1 can be filtered through the first overflow structure 11, so that solid matters in the culture wastewater to be treated in the anaerobic digestion area 1 cannot easily enter the autotrophic nitrogen removal area 2. The anaerobic digestion zone 1 is subjected to sludge discharge treatment after a predetermined time to remove solids (e.g., sludge) deposited at the bottom of the anaerobic digestion zone 1.
Particularly, the communicating part of the autotrophic nitrogen removal region 2 and the sludge granulation region 3 is provided with the second overflow structure 21, and the aquaculture wastewater treated by the autotrophic nitrogen removal region 2 enters the sludge granulation region 3 through the second overflow structure 21, so that the second overflow structure 21 can prevent the aquaculture wastewater to be treated in the sludge granulation region 3 from flowing back to the autotrophic nitrogen removal region 2, and meanwhile, the aquaculture wastewater to be treated in the autotrophic nitrogen removal region 2 can be filtered by the second overflow structure 21, so that solid matters in the aquaculture wastewater to be treated in the autotrophic nitrogen removal region 2 are not easy to enter the sludge granulation region 3.
In order to ensure that the aquaculture wastewater to be treated flows through the anaerobic digestion zone 1, the autotrophic nitrogen removal zone 2 and the sludge granulation zone 3 in sequence, the second overflow structure 21 should be lower than the first overflow structure 11, so that the aquaculture wastewater to be treated in the autotrophic nitrogen removal zone 2 preferably flows into the sludge granulation zone 3 through the second overflow structure 21.
The sludge granulation area 3 of the present embodiment is divided into a sludge area 31 and a granulation area 32 by a partition, and the aquaculture wastewater from which the organic substances are removed by the autotrophic nitrogen removal area 2 enters the granulation area 32 after being treated by the sludge area 31. Moreover, the first baffle 311 is disposed in the sludge area 31, so that the flowing state of the aquaculture wastewater to be treated entering the sludge area 31 can be adjusted by the first baffle 311, the granulation process is accelerated, the structural strength of the granular sludge is improved, the impact resistance of the granular sludge is enhanced, and the expansion and dispersion caused by water flow impact are avoided.
The cyclone separation device 34 is installed in the granulation zone 32, and is used for driving the to-be-treated aquaculture wastewater in the granulation zone 32 to perform cyclone centrifugation, so that flocculent sludge in the to-be-treated aquaculture wastewater is gathered to form crystal nuclei of granular sludge, and the flocculent sludge can be enriched, thereby realizing the sludge reduction effect.
According to the sludge reduction reactor for treating the aquaculture wastewater, the anaerobic digestion area 1 and the autotrophic nitrogen removal area 2 are arranged, the anaerobic digestion area 1 provides an anaerobic environment to effectively remove COD in the aquaculture wastewater, the autotrophic nitrogen removal area 2 provides a favorable environment for the SNAD process, and the SNAD process is guaranteed to be reliably carried out, so that efficient nitrogen removal is realized.
In addition, the sludge reduction reactor is also provided with the sludge granulation area 3, and the sludge granulation area 3 is divided into the sludge area 31 and the granulation area 32 by the partition plate, so that the flowing state of the aquaculture wastewater to be treated can be adjusted by the first baffle plate 311 in the sludge area 31, thereby changing the colony structure of the granular sludge and accelerating the granulation process of the common activated sludge.
In addition, because the granulation district 32 is provided with cyclone separator 34, consequently can be by cyclone separator 34 drive pending breed waste water whirl centrifugation in the granulation district 32, thereby make the flocculent mud in the pending breed waste water high efficiency gather and form the crystal nucleus of granular sludge, remaining flocculent mud can enrich fast on the crystal nucleus like this, form granular sludge from this, realize the minimizing of mud and handle, in order to turn into granular sludge with ordinary activated sludge high efficiency, a large amount of ordinary activated sludge's production has been avoided, thereby reduce sludge treatment expense, and then reduce the waste water treatment cost, have higher practicality of use.
The sludge reduction reactor comprises a first aeration device 22 arranged in the autotrophic nitrogen removal area 2 and a second aeration device 33 arranged in the sludge granulation area 3, and provides an anoxic environment for the aquaculture wastewater to be treated in the autotrophic nitrogen removal area 2 through the aeration of the first aeration device 22, so that favorable conditions are created for the SNAD process to treat the aquaculture wastewater to be treated, and the SNAD process in the autotrophic nitrogen removal area 2 is ensured to be reliably carried out.
In addition, at least one part of the second aeration device 33 is positioned in the sludge area 31, and the aeration state of the aquaculture wastewater to be treated in the sludge area 31 is adjusted through aeration, so that the colony structure of the granular sludge in the aquaculture wastewater to be treated in the sludge area 31 is changed, the granular sludge can bear high organic load, the sedimentation performance is improved, and microorganisms (aerobic, facultative and anaerobic microorganisms) with different properties are integrated. The granulation of the activated sludge can achieve the effect of sludge reduction and can also enhance the sludge activity, thereby improving the wastewater treatment efficiency and reducing the dependence on a sedimentation system.
The second aeration device 33 comprises an aeration fan, a plurality of aeration chains and a plurality of tubular aerators arranged on the aeration chains, wherein the aeration chains are respectively connected with the aeration fan and are uniformly distributed in the sludge area 31 and the granulation area 32, each tubular aerator is respectively provided with a plurality of uniformly distributed air holes, and the aeration fan and the aeration chains supply air to adjust the dissolved oxygen concentration of the aquaculture wastewater to be treated in the sludge area 31 and the granulation area 32. Above-mentioned second aeration equipment 33 is through setting up tubular aerator to can make the aeration more even, and then the more efficient dissolved oxygen solubility of adjustment pending aquaculture wastewater.
The first aeration device 22 is installed at the bottom of the autotrophic nitrogen removal zone 2, the plurality of aeration chains of the second aeration device 33 are respectively installed and fixed to the sludge granulation zone 3 in a hanging manner, and the plurality of tubular aerators on each aeration chain are spaced from the bottom of the sludge granulation zone 3 by a preset distance. The unsettled mode setting that above-mentioned second aeration equipment 33 adopted can effectively solve the inhomogeneous problem of aeration, reduces the energy consumption simultaneously, and it is also comparatively convenient to maintain installation and maintenance, has higher practicality. Of course, in practical application, the preset distance between the plurality of tubular aerators on each aeration chain and the bottom of the sludge particles can be determined according to practical situations.
In an embodiment of the present invention, the cyclone separator 34 includes a cyclone separator and a lift pump, the cyclone separator is installed at the bottom of the granulation zone 32 and connected to the lift pump, and the lift pump drives the wastewater to be treated in the granulation zone 32 to perform a cyclone separation motion. Above-mentioned cyclone separator 34 can realize driving pending breed waste water and do whirl centrifugal motion through setting up cyclone to form granular sludge's crystal nucleus, can protect granular sludge again, avoid direct impact granular sludge and break up granular sludge.
Above-mentioned anaerobic digestion district 1 is including the baffling baffle subassembly 12 that is used for carrying out pending breed waste water's solid-liquid separation, baffling baffle subassembly 12 is including installing in a plurality of baffle components of the top of anaerobic digestion district 1 and bottom, a plurality of baffle component interval distribution, and install and have at least one between two adjacent baffle components at the top of anaerobic digestion district 1 and install in the baffle component of the bottom of anaerobic digestion district 1, can form wave runner in anaerobic digestion district 1 like this, thereby prolong pending breed waste water's flow distance, solve the problem of the short-term flow of water, increase water dwell time, can improve space utilization simultaneously, need not to set up great volumetric anaerobic digestion district 1 like this, effectively reduce the volume of mud minimizing reactor, make simple structure.
The above-mentioned autotrophic nitrogen removal zone 2 includes a driving motor 23, an agitator 24, and an opening for adding suspended biological fillers, i.e., through which materials (including suspended biological fillers) for performing the SNAD process can be added to the autotrophic nitrogen removal zone 2. Moreover, the stirrer 24 is fixed on the top of the autotrophic nitrogen removal region 2 and connected with the driving motor 23, so that the stirrer 24 can stir the aquaculture wastewater to be treated in the autotrophic nitrogen removal region 2 under the driving of the driving motor 23, thereby accelerating the nitrogen removal efficiency of the aquaculture wastewater to be treated and avoiding the influence of the sludge deposited on the bottom of the autotrophic nitrogen removal region 2 due to the reduction of contact.
The granulation zone 32 includes a first pumping line 321 for transferring a part of the nuclei to the sludge zone 31 and the autotrophic nitrogen removal zone 2, and the first pumping line 321 is in communication with the bottoms of the granulation zone 32, the sludge zone 31, and the autotrophic nitrogen removal zone 2, respectively, i.e., the nuclei of the granular sludge formed in the granulation zone 32 may be transferred to the sludge zone 31 and the autotrophic nitrogen removal zone 2 through the first pumping line 321, thereby accelerating the formation of the granular sludge in the sludge zone 31 and the autotrophic nitrogen removal zone 2.
Specifically, the autotrophic nitrogen removal zone 2 includes a second pumping pipe 25 for delivering a portion of the sludge to the anaerobic digestion zone 1, and the second pumping pipe 25 is respectively communicated with the bottom of the autotrophic nitrogen removal zone 2 and the bottom of the anaerobic digestion zone 1, i.e., a portion of the sludge in the autotrophic nitrogen removal zone 2 can be delivered to the anaerobic digestion zone 1 through the second pumping pipe 25, so as to collect microorganisms (aerobic, facultative and anaerobic microorganisms) with different properties on the granular sludge, and change the colony structure on the granular sludge, thereby enhancing the impact resistance of the granular sludge, enabling the granular sludge to bear high organic load, and improving the settling performance.
In particular, the anaerobic digestion zone 1 comprises a first baffling filter plate 13 arranged in front of the first overflow structure 11, and the solids in the anaerobic digestion zone 1 are prevented from flowing to the first overflow structure 11 by the first baffling filter plate 13, so that the solid-liquid separation effect can be effectively realized. In addition, the granulation zone 32 includes a water outlet and a second baffling filter plate 322 disposed in front of the water outlet, and the second baffling filter plate 322 prevents the solid in the granulation zone 32 from flowing to the water outlet, so as to prevent the granular sludge in the granulation zone 32 from flowing out.
In addition, the sludge reduction reactor comprises a pH value sensor for detecting the pH value of the aquaculture wastewater to be treated in the autotrophic nitrogen removal area 2 and a dissolved oxygen sensor for monitoring the dissolved oxygen content of the aquaculture wastewater to be treated in the autotrophic nitrogen removal area 2, and detection heads of the pH value sensor and the dissolved oxygen sensor are respectively positioned in the autotrophic nitrogen removal area 2. Therefore, the pH value and the dissolved oxygen content of the aquaculture wastewater to be treated in the autotrophic nitrogen removal area 2 can be monitored in real time, the pH value and the dissolved oxygen content can be conveniently and timely adjusted, a favorable environment is provided for the SNAD process, and the nitrogen removal efficiency is further accelerated.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A sludge reduction reactor for treating aquaculture wastewater is characterized by comprising a cyclone separation device, an anaerobic digestion area, an autotrophic denitrification area and a sludge granulation area, wherein the anaerobic digestion area is used for providing an anaerobic environment for the aquaculture wastewater to be treated so as to remove COD, the autotrophic denitrification area is used for removing organic matters in the aquaculture wastewater to be treated through an SNAD process, the sludge granulation area is used for forming granular sludge, the anaerobic digestion area, the autotrophic denitrification area and the sludge granulation area are sequentially communicated, a first overflow structure is arranged at the communication part of the anaerobic digestion area and the autotrophic denitrification area, and the aquaculture wastewater treated by the anaerobic digestion area enters the anaerobic digestion area through the first overflow structure; a second overflow structure is arranged at the communication position of the autotrophic nitrogen removal area and the sludge granulation area, and the culture wastewater treated by the autotrophic nitrogen removal area enters the sludge granulation area through the second overflow structure;
the sludge granulation area is divided into a sludge area and a granulation area by a partition plate, and the culture wastewater from which the organic matters are removed by the autotrophic nitrogen removal area enters the granulation area after being treated by the sludge area; a first baffle plate is arranged in the sludge area, and the flowing state of the aquaculture wastewater to be treated entering the sludge area is adjusted through the first baffle plate; the cyclone separation device is arranged in the granulation zone and drives the to-be-treated aquaculture wastewater in the granulation zone to carry out cyclone centrifugation so as to enable flocculent sludge in the to-be-treated aquaculture wastewater to be gathered to form crystal nuclei of granular sludge.
2. The sludge reduction reactor for aquaculture wastewater treatment according to claim 1, wherein the sludge reduction reactor comprises a first aeration device installed in the autotrophic nitrogen removal zone and a second aeration device installed in the sludge granulation zone, and an anoxic environment is provided for aquaculture wastewater to be treated in the autotrophic nitrogen removal zone by aeration of the first aeration device; at least one part of the second aeration device is positioned in the sludge area, and the aeration state of the aquaculture wastewater to be treated in the sludge area is adjusted through aeration.
3. The sludge reduction reactor for aquaculture wastewater treatment as claimed in claim 2, wherein said second aeration device comprises an aeration fan, a plurality of aeration chains and a plurality of tubular aerators disposed on said plurality of aeration chains, said plurality of aeration chains are respectively connected to said aeration fan and are uniformly distributed in said sludge zone and said granulation zone, and each of said tubular aerators is provided with a plurality of uniformly distributed pores, and the dissolved oxygen concentration of aquaculture wastewater to be treated in said sludge zone and said granulation zone is adjusted by air supply from said aeration fan and said aeration chains.
4. The sludge reduction reactor for aquaculture wastewater treatment as recited in claim 3, wherein said first aeration device is installed at the bottom of said autotrophic denitrification zone, said plurality of aeration chains of said second aeration device are installed and fixed to said sludge granulation zone in a suspended manner, respectively, and said plurality of tubular aerators on each of said aeration chains are spaced from the bottom of said sludge granulation zone by a predetermined distance.
5. The sludge reduction reactor for aquaculture wastewater treatment according to any one of claims 1 to 4, wherein the cyclone separation device comprises a cyclone separator and a lift pump, the cyclone separator is arranged at the bottom of the granulation zone and connected with the lift pump, and the lift pump drives the aquaculture wastewater to be treated in the granulation zone to perform cyclone separation movement.
6. The sludge reduction reactor for aquaculture wastewater treatment as claimed in any one of claims 1 to 4, wherein the anaerobic digestion zone comprises a baffle plate assembly for performing solid-liquid separation of the aquaculture wastewater to be treated, the baffle plate assembly comprises a plurality of baffle plate members installed at the top and bottom of the anaerobic digestion zone, the plurality of baffle plate members are distributed at intervals, and at least one baffle plate member installed at the bottom of the anaerobic digestion zone is arranged between two adjacent baffle plate members installed at the top of the anaerobic digestion zone.
7. The sludge reduction reactor for aquaculture wastewater treatment according to any one of claims 1 to 4, wherein the autotrophic nitrogen removal zone comprises a drive motor, an agitator, and an opening for adding suspended biological filler, wherein the agitator is fixed on top of the autotrophic nitrogen removal zone and connected with the drive motor.
8. The sludge reduction reactor for aquaculture wastewater treatment as claimed in any one of claims 1 to 4, wherein the granulation zone comprises a first pumping line for transferring part of the nuclei to the sludge zone and the autotrophic nitrogen removal zone, and the first pumping line is respectively communicated with the bottoms of the granulation zone, the sludge zone and the autotrophic nitrogen removal zone.
9. The sludge reduction reactor for aquaculture wastewater treatment of any of claims 1-4, wherein said autotrophic denitrification zone comprises a second pumping line for delivering a portion of sludge to said anaerobic digestion zone, and said second pumping line is in communication with the bottom of said autotrophic denitrification zone and said anaerobic digestion zone, respectively.
10. The sludge reduction reactor for aquaculture wastewater treatment as claimed in claim 1, wherein the second overflow structure is lower than the first overflow structure, and the anaerobic digestion zone comprises a first baffling filter plate arranged in front of the first overflow structure, and solid matters in the anaerobic digestion zone are prevented from flowing to the first overflow structure by the first baffling filter plate; the granulation zone comprises a water outlet and a second baffling filter plate arranged in front of the water outlet, and solid matters in the granulation zone are prevented from flowing to the water outlet by the second baffling filter plate;
the sludge reduction reactor comprises a pH value sensor for detecting the pH value of the to-be-treated aquaculture wastewater in the autotrophic nitrogen removal area and a dissolved oxygen sensor for monitoring the dissolved oxygen content of the to-be-treated aquaculture wastewater in the autotrophic nitrogen removal area, and the detection heads of the pH value sensor and the dissolved oxygen sensor are respectively positioned in the autotrophic nitrogen removal area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123141053.XU CN216614173U (en) | 2021-12-14 | 2021-12-14 | Sludge reduction reactor for aquaculture wastewater treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123141053.XU CN216614173U (en) | 2021-12-14 | 2021-12-14 | Sludge reduction reactor for aquaculture wastewater treatment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216614173U true CN216614173U (en) | 2022-05-27 |
Family
ID=81702712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123141053.XU Active CN216614173U (en) | 2021-12-14 | 2021-12-14 | Sludge reduction reactor for aquaculture wastewater treatment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216614173U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115536150A (en) * | 2022-11-04 | 2022-12-30 | 北京城市排水集团有限责任公司 | Granulation system and granulation method for anaerobic ammonium oxidation sludge in main flow area of sewage plant |
-
2021
- 2021-12-14 CN CN202123141053.XU patent/CN216614173U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115536150A (en) * | 2022-11-04 | 2022-12-30 | 北京城市排水集团有限责任公司 | Granulation system and granulation method for anaerobic ammonium oxidation sludge in main flow area of sewage plant |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9938173B2 (en) | Apparatus for water, wastewater, and waste treatment | |
| CN101525207A (en) | Integrated pre-denitrification and denitrogenation biological filter sewerage treatment process | |
| CN201952322U (en) | Anaerobic micropore aeration oxidation ditch reactor | |
| CN210915520U (en) | Sewage treatment device based on suspended filler biomembrane technology | |
| CN216614173U (en) | Sludge reduction reactor for aquaculture wastewater treatment | |
| CN112408588A (en) | Self-circulation sewage treatment reaction tank based on MBR sludge-water separation | |
| CN112299653A (en) | Efficient denitrification treatment method for kitchen wastewater | |
| CN202046974U (en) | Highly efficient treatment system for denitrification and dephosphorization of urban sewage | |
| CN213680293U (en) | Integrated biological fluidized bed sewage treatment device | |
| CN104671612A (en) | Sequence flow return type sewage treatment method and treatment device | |
| CN211470943U (en) | Biological carrier enhanced reaction device for high-concentration organic wastewater treatment | |
| CN210012704U (en) | Economical printing and dyeing wastewater denitrification treatment system | |
| CN109665632B (en) | Process for rapidly degrading high-concentration eutrophic sewage | |
| CN203866153U (en) | Improved reinforced A2/O denitrogenation and dephosphorization treating device for municipal sewage | |
| CN217103243U (en) | Autotrophic nitrogen removal wastewater treatment equipment | |
| CN202671346U (en) | Wastewater treatment system for waste paper making | |
| CN207792815U (en) | A kind of kitchen garbage, waste-water biochemical treatment system | |
| CN207792993U (en) | A kind of pretreatment system of kitchen garbage, waste-water | |
| CN112624500A (en) | Kitchen waste sewage treatment system and method | |
| CN220223818U (en) | Sewage treatment device for total nitrogen removal | |
| CN219689497U (en) | High-efficient reaction unit of granule AOB | |
| CN204529602U (en) | Sequence stream foldback formula waste disposal plant | |
| CN216614355U (en) | Small-sized treatment equipment for poultry and livestock manure liquid | |
| CN211111572U (en) | High-toxicity and degradation-resistant wastewater treatment system | |
| CN218089267U (en) | Domestic sewage efficient processing system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |