CN219384909U - Biochemical treatment system for coal chemical wastewater - Google Patents
Biochemical treatment system for coal chemical wastewater Download PDFInfo
- Publication number
- CN219384909U CN219384909U CN202320702275.4U CN202320702275U CN219384909U CN 219384909 U CN219384909 U CN 219384909U CN 202320702275 U CN202320702275 U CN 202320702275U CN 219384909 U CN219384909 U CN 219384909U
- Authority
- CN
- China
- Prior art keywords
- zone
- tank
- reaction
- treatment system
- coal chemical
- 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
Classifications
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The utility model discloses a biochemical treatment system for coal chemical wastewater, which comprises an anaerobic reactor and a composite reaction tank for degrading CODcr and ammonia nitrogen, wherein the anaerobic reactor and the composite reaction tank are sequentially arranged according to a treatment flow, a reaction zone, a sedimentation zone and a biological membrane zone are arranged in the composite reaction tank, the sedimentation zone is positioned at the outer side of the reaction zone, the biological membrane zone is positioned at the upper part of the reaction zone, the inlet of the reaction zone is communicated with the outlet of the sedimentation zone, and the outlet of the reaction zone is communicated with the inlet of the biological membrane zone; the utility model discloses a biochemical treatment system for coal chemical wastewater, which integrates a biological fluidized bed and a biological film pool into a composite reaction pool, so that the occupied area of the device is reduced; the arrangement of the membrane bioreactor ensures that the sludge concentration of the composite reaction tank is high, the influence of toxic substances on nitrifying bacteria can be weakened, the nitrifying bacteria concentration and the nitrifying efficiency are improved, meanwhile, a sedimentation tank and a flocculation sedimentation tank in a conventional device are removed, and the hydraulic retention time and the tank body volume are reduced.
Description
Technical Field
The utility model belongs to the technical field of wastewater treatment, and relates to a coal chemical wastewater treatment device.
Background
The components of the coal chemical wastewater are different according to different processing technologies, mainly comprise coal gas wastewater, coal oil wastewater, coal coke wastewater, coal methanol wastewater, olefin wastewater and the like, the sewage water quantity is large, but the wastewater contains aromatic compounds, heterocyclic compounds, ammonia nitrogen and the like, the wastewater has complex components and high pollutant concentration, phenolic toxic substances in the wastewater inhibit the activity of microorganisms, the construction of nitrification is influenced, the denitrification efficiency is low, and the effluent is unstable. The current biochemical treatment process generally adopts: the problems of long process flow, weak nitrification capability, low ammonia nitrogen treatment efficiency, long hydraulic retention time, large occupied area and the like exist in the coal chemical wastewater, hydrolysis acidification, anoxic-aerobic-precipitation-flocculation precipitation and water discharge.
In order to solve the problems, a wastewater treatment device is needed, and the problems of long process flow, large occupied area and the like of the traditional device can be solved.
Disclosure of Invention
Compared with the existing treatment device, the utility model integrates the biological fluidized bed and the biological film tank into a composite reaction tank, and the novel equipment simultaneously omits a sedimentation tank and a flocculation sedimentation tank, shortens the process flow and reduces the occupied area of the equipment.
The utility model provides a biochemical treatment system of coal industry waste water, includes the anaerobic reactor that sets gradually according to the treatment procedure and is used for degrading CODcr and ammonia nitrogen's compound reaction tank, be provided with reaction zone, sedimentation zone and biomembrane district in the compound reaction tank, the sedimentation zone is located the outside of reaction zone, and the biomembrane district is located the upper portion of reaction zone, and the entry of reaction zone is linked together with the export of sedimentation zone, and the export of reaction zone is linked together with the entry of biomembrane district. The reaction area and the sedimentation area are equivalent to biological fluidized beds, the biological film area is equivalent to a biological film pool, and the biological fluidized beds and the biological film pool are integrated into a whole to form a composite reaction pool, so that the whole occupied area of the device is reduced, and the process flow is correspondingly shortened.
Further, an adjusting tank for adjusting water quality and quantity is arranged in front of the anaerobic reactor, and an anoxic tank for removing total nitrogen and degrading CODcr is arranged behind the anaerobic reactor.
Further, the composite reaction tank is also provided with a water distribution device and an aeration device, one end of the water distribution device is connected with an outlet of the anoxic tank, and the other end of the water distribution device extends to the composite reaction tank and is communicated with an inlet of the reaction zone; the aeration device is provided with an aeration pipe, the aeration pipe at least comprises an aeration pipe I and an aeration pipe II, the aeration pipe I is arranged at the inlet position of the reaction zone and is communicated with the inlet of the reaction zone, and the aeration pipe II is arranged at the inlet position of the biological membrane zone and is communicated with the inlet of the biological membrane zone. The water distribution device is arranged to guide the effluent of the anoxic tank to the reaction zone in the composite reaction tank and uniformly distribute the effluent so as to facilitate the reaction, and the water distribution device can be a water pipe provided with a plurality of outlets or other devices capable of achieving the same purpose, which is understood by those skilled in the art and is not repeated herein; the aeration device can ensure that the oxygen amount is sufficient when the wastewater to be treated reacts in the reaction zone and enters the biomembrane zone for reaction.
Further, the biomembrane zone is provided with an on-line dissolved oxygen monitor and an on-line pH monitor. The dissolved oxygen on-line monitor and the pH on-line monitor are arranged so as to detect the oxygen content and the pH value of the biological film area in the wastewater treatment process, so that the operation parameters can be adjusted in time, and the wastewater treatment effect is better.
Further, the device also comprises a return pipe, one end of the return pipe is communicated with the composite reaction tank, the other end of the return pipe is communicated with the anoxic tank, and the return pipe is provided with a flow valve for controlling flow. The reflux pipe is arranged for allowing the mixed solution reacted in the middle mould reaction zone in the compound reaction tank to flow back to the anoxic tank for removing total nitrogen, and the flow of the reflux pipe is adjusted by arranging the flow valve, so that the reflux ratio reaches 200-500%, and the running requirement of the device is met.
Further, the anaerobic reactor has a high temperature operation mode in which the operation temperature of the anaerobic reactor is 50 to 55 ℃ and a medium temperature operation mode in which the operation temperature of the anaerobic reactor is 30 to 35 ℃.
Further, flocculent sludge or granular sludge is arranged in the anaerobic reactor.
Further, a plurality of flow pushing devices are arranged in the anoxic tank. The impeller is arranged in the anoxic tank to ensure uniform mixing of water in the tank.
Further, the biofilm zone is provided with a membrane bioreactor. The membrane bioreactor, namely the MBR membrane, is arranged, a membrane module is used for replacing a traditional biological treatment technology terminal secondary sedimentation tank, high activated sludge concentration is kept in the bioreactor, biological treatment organic load is improved, thus occupied area of sewage treatment facilities is reduced, activated sludge concentration in the membrane bioreactor is higher, sludge age is longer, further the sludge concentration in the composite reaction tank is high, the influence of toxic substances on nitrifying bacteria can be weakened, and nitrifying bacteria concentration and nitrifying efficiency are improved.
The utility model has the beneficial effects that:
the utility model discloses a biochemical treatment system for coal chemical wastewater, which integrates a biological fluidized bed and a biological film pool into a composite reaction pool, so that the occupied area of the device is reduced; the arrangement of the membrane bioreactor ensures that the sludge concentration of the composite reaction tank is high, the influence of toxic substances on nitrifying bacteria can be weakened, the nitrifying bacteria concentration and the nitrifying efficiency are improved, meanwhile, a sedimentation tank and a flocculation sedimentation tank in a conventional device are removed, and the hydraulic retention time and the tank body volume are reduced.
Drawings
FIG. 1 is a schematic diagram of a biochemical treatment system for coal chemical wastewater according to the present utility model;
FIG. 2 is a schematic diagram of the structure of the composite reaction tank.
Detailed Description
FIG. 1 is a schematic diagram of the structure of the practical coal chemical wastewater biochemical treatment system; FIG. 2 is a schematic diagram of the structure of the composite reaction tank of the utility model; the arrows in fig. 2 are directed to medium flow schematic representations, which are indicative of the overall flow of wastewater to be treated, but are not particularly limited. It should be understood that, if any, the terms "upper," "lower," "left," "right," "front," "rear," and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, only to facilitate description of the utility model and simplify the description, rather than to indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and thus the terms describing positional relationships in the drawings are merely for illustration and not to be construed as limiting the utility model, and that the specific meaning of the terms described above will be understood by those of ordinary skill in the art based on the specific circumstances.
As shown in the figure, the biochemical treatment system of the coal chemical wastewater comprises an anaerobic reactor and a composite reaction tank for degrading CODcr and ammonia nitrogen, wherein the anaerobic reactor and the composite reaction tank are sequentially arranged according to a treatment flow. Flocculent sludge or granular sludge is arranged in the anaerobic reactor to treat organic matters in the coal-containing wastewater. The composite reaction tank is internally provided with a reaction zone, a sedimentation zone and a biological film zone, wherein the sedimentation zone is positioned at the outer side of the reaction zone, the biological film zone is positioned at the upper part of the reaction zone, the inlet of the reaction zone is communicated with the outlet of the sedimentation zone, and the outlet of the reaction zone is communicated with the inlet of the biological film zone. The sedimentation zone is positioned at the outer side of the reaction zone, so that waste liquid entering the load reaction tank can enter the reaction zone and start subsequent reaction after being precipitated in the sedimentation zone, the reaction zone and the sedimentation zone are equivalent to a biological fluidized bed, the biological membrane zone is equivalent to a biological membrane tank, the biological fluidized bed and the biological membrane tank are integrated into a whole, a composite reaction tank is formed, the whole occupied area of the device is reduced, and the process flow is correspondingly shortened.
In the embodiment, an adjusting tank for adjusting water quality and water quantity is arranged in front of the anaerobic reactor, and an anoxic tank for removing total nitrogen and degrading CODcr is arranged behind the anaerobic reactor; the anaerobic reactor has a high-temperature operation mode and a medium-temperature operation mode, wherein the operation temperature of the anaerobic reactor in the high-temperature operation mode is 50-55 ℃, and the operation temperature of the anaerobic reactor in the medium-temperature operation mode is 30-35 ℃.
In this embodiment, the biofilm zone is provided with a membrane bioreactor. The membrane bioreactor, namely the MBR membrane, is arranged, a membrane module is used for replacing a traditional biological treatment technology terminal secondary sedimentation tank, high activated sludge concentration is kept in the bioreactor, biological treatment organic load is improved, thus occupied area of sewage treatment facilities is reduced, activated sludge concentration in the membrane bioreactor is higher, sludge age is longer, further the sludge concentration in the composite reaction tank is high, the influence of toxic substances on nitrifying bacteria can be weakened, and nitrifying bacteria concentration and nitrifying efficiency are improved.
In this embodiment, the composite reaction tank is further provided with a water distribution device 1 and an aeration device 6, one end of the water distribution device 1 is connected to the outlet of the anoxic tank, and the other end extends to the composite reaction tank and is communicated with the inlet of the reaction zone 3; the aeration device 6 is provided with an aeration pipe, the aeration pipe at least comprises an aeration pipe I9 and an aeration pipe II 8, the aeration pipe I9 is arranged at the inlet position of the reaction zone 3 and is communicated with the inlet of the reaction zone 3, and the aeration pipe II 8 is arranged at the inlet position of the biological film zone 4 and is communicated with the inlet of the biological film zone 4. The water distribution device 1 is arranged to guide the effluent of the anoxic tank to the reaction zone 3 in the composite reaction tank and uniformly distribute the effluent so as to facilitate the reaction, and the water distribution device 1 can be a water pipe provided with a plurality of outlets or other devices capable of achieving the same purpose, which are understood by those skilled in the art and are not repeated herein; the aeration device 6 can ensure that the oxygen content is sufficient when the wastewater to be treated reacts in the reaction zone 3 and enters the biological film zone 4 for reaction. In this embodiment, the water distribution pipe guides the effluent of the anoxic tank to the reaction zone 3 of the composite reaction tank, the wastewater to be treated flows to the outlet of the reaction zone 3 after the reaction in the reaction zone 3, the liquid enters the biomembrane zone 4 to continue the reaction, the heavier impurities after the reaction flow to the sedimentation zone 5 from the outlet of the reaction zone 3 to be sedimented, the biomembrane zone 4 is provided with the water outlet pipe 2, and the water outlet pipe 2 pumps the effluent after the reaction out through a pump or other equipment to obtain the final effluent.
In this embodiment, the biofilm area is provided with an on-line dissolved oxygen monitor and an on-line pH monitor. The dissolved oxygen on-line monitor and the pH on-line monitor are arranged so as to detect the oxygen content and the pH value of the biological film area in the wastewater treatment process, so that the operation parameters can be adjusted in time, and the wastewater treatment effect is better.
In this embodiment, still include the back flow that supplies liquid to flow back to the anoxic tank from compound reaction tank, back flow one end communicates in compound reaction tank, and the other end communicates in the anoxic tank, and the back flow is provided with the flow valve that is used for controlling the flow. The reflux pipe is arranged for allowing the mixed liquid after the reaction of the membrane area in the composite reaction tank to flow back to the anoxic tank for removing total nitrogen, and the flow valve is arranged for adjusting the flow of the reflux pipe so that the reflux ratio reaches 200 to 500 percent to meet the running requirement of the device.
Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the present utility model, which is intended to be covered by the claims of the present utility model.
Claims (9)
1. A biochemical treatment system for coal chemical wastewater is characterized in that: the method comprises an anaerobic reactor and a composite reaction tank for degrading CODcr and ammonia nitrogen, wherein the anaerobic reactor and the composite reaction tank are sequentially arranged according to a treatment flow, a reaction zone, a sedimentation zone and a biological membrane zone are arranged in the composite reaction tank, the sedimentation zone is positioned at the outer side of the reaction zone, the biological membrane zone is positioned at the upper part of the reaction zone, an inlet of the reaction zone is communicated with an outlet of the sedimentation zone, and an outlet of the reaction zone is communicated with an inlet of the biological membrane zone.
2. The biochemical treatment system for coal chemical wastewater according to claim 1, wherein: an adjusting tank for adjusting water quality and quantity is arranged in front of the anaerobic reactor, and an anoxic tank for removing total nitrogen and degrading CODcr is arranged behind the anaerobic reactor.
3. The biochemical treatment system for coal chemical wastewater according to claim 2, wherein: the composite reaction tank is also provided with a water distribution device and an aeration device, one end of the water distribution device is connected with the outlet of the anoxic tank, and the other end of the water distribution device extends to the composite reaction tank and is communicated with the inlet of the reaction zone; the aeration device is provided with an aeration pipe, the aeration pipe at least comprises an aeration pipe I and an aeration pipe II, the aeration pipe I is arranged at the inlet position of the reaction zone and is communicated with the inlet of the reaction zone, and the aeration pipe II is arranged at the inlet position of the biological membrane zone and is communicated with the inlet of the biological membrane zone.
4. The biochemical treatment system for coal chemical wastewater according to claim 1, wherein: the biomembrane zone is provided with an on-line dissolved oxygen monitor and an on-line pH monitor.
5. The biochemical treatment system for coal chemical wastewater according to claim 2, wherein: the anaerobic treatment device also comprises a return pipe, wherein one end of the return pipe is communicated with the biomembrane zone, the other end of the return pipe is communicated with the inlet of the anoxic tank, and a flow valve for controlling flow is arranged.
6. The biochemical treatment system for coal chemical wastewater according to claim 2, wherein: the anaerobic reactor is provided with a high-temperature operation mode and a medium-temperature operation mode, wherein the operation temperature of the anaerobic reactor in the high-temperature operation mode is 50-55 ℃, and the operation temperature of the anaerobic reactor in the medium-temperature operation mode is 30-35 ℃.
7. The biochemical treatment system for coal chemical wastewater according to claim 2, wherein: flocculent sludge or granular sludge is arranged in the anaerobic reactor.
8. The biochemical treatment system for coal chemical wastewater according to claim 2, wherein: a plurality of flow pushing devices are arranged in the anoxic tank.
9. The biochemical treatment system for coal chemical wastewater according to claim 1, wherein: the biofilm zone is provided with a membrane bioreactor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320702275.4U CN219384909U (en) | 2023-03-31 | 2023-03-31 | Biochemical treatment system for coal chemical wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320702275.4U CN219384909U (en) | 2023-03-31 | 2023-03-31 | Biochemical treatment system for coal chemical wastewater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219384909U true CN219384909U (en) | 2023-07-21 |
Family
ID=87191222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320702275.4U Active CN219384909U (en) | 2023-03-31 | 2023-03-31 | Biochemical treatment system for coal chemical wastewater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219384909U (en) |
-
2023
- 2023-03-31 CN CN202320702275.4U patent/CN219384909U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110015812B (en) | High-concentration livestock and poultry breeding wastewater treatment method | |
| CN108046518B (en) | Enhanced nitrogen and phosphorus removal device and method for low-carbon source sewage | |
| CN112479522B (en) | Method for promoting total nitrogen removal by utilizing carbon source generated by anaerobic hydrolysis and fermentation of sludge | |
| CN109205954A (en) | Light electrolysis catalysis oxidation, biochemical treatment high-concentration waste hydraulic art | |
| CN104118969A (en) | A2O(anaerobic-anoxic-oxic)-MBR (membrane bioreactor) sewage treatment device and method | |
| CN113233586A (en) | Multi-mode micro-aerobic aeration AAO-MBR high-efficiency energy-saving sewage treatment device and method | |
| CN212174718U (en) | Distributed sewage treatment integrated equipment | |
| CN219363441U (en) | Gasification wastewater treatment equipment | |
| CN109081509B (en) | Sewage treatment system and process suitable for low-carbon-nitrogen ratio and high-carbon-nitrogen ratio | |
| CN108569817A (en) | A kind of coal chemical industrial waste water biochemical system processing unit | |
| CN219384909U (en) | Biochemical treatment system for coal chemical wastewater | |
| CN116477776A (en) | Front-phosphorus-removal rear-endogenous denitrification coupling MBR sewage treatment system and technology | |
| CN115784439A (en) | Vertical flow type device for realizing synchronous nitrogen and phosphorus removal of domestic sewage of villages and towns through granular sludge at low temperature | |
| CN212246699U (en) | Neomycin sulfate waste water treatment device | |
| CN112174324A (en) | Leachate biochemical section treatment system and method for efficient denitrification | |
| CN108358314B (en) | Sludge near reflux bioreactor, combined facility and application thereof | |
| CN108178424B (en) | Double-reflux activated sludge bed sewage treatment method | |
| CN217398562U (en) | High-concentration nitrogen-containing wastewater treatment system | |
| CN220788309U (en) | micro-electrolysis-SRUSB-multistage anaerobic MBR-anoxic-aerobic system | |
| CN100345775C (en) | Urban sewage treatment of anaerobic biological-low voltage electric field oxidizing coupling system | |
| CN211226832U (en) | Pharmacy effluent disposal system | |
| CN111099795B (en) | Sewage treatment equipment | |
| CN212713182U (en) | Multistage combined type chemical industry high difficulty waste water zero release processing system | |
| CN214457453U (en) | Leachate biochemical section treatment system for efficient denitrification | |
| CN219792736U (en) | Small household garbage transfer station percolate treatment device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |