CN218811012U - Coal chemical wastewater treatment device - Google Patents
Coal chemical wastewater treatment device Download PDFInfo
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- CN218811012U CN218811012U CN202222233597.7U CN202222233597U CN218811012U CN 218811012 U CN218811012 U CN 218811012U CN 202222233597 U CN202222233597 U CN 202222233597U CN 218811012 U CN218811012 U CN 218811012U
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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
- 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
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Abstract
The utility model discloses a coal chemical industry effluent treatment plant, which comprises an adjusting tank, an internal circulation anaerobic reactor, a hydrolysis acidification reaction tank, a mud film composite reaction tank, a sedimentation tank and a denitrification filter tank which are arranged in sequence according to the treatment flow of coal chemical industry effluent, wherein the internal circulation anaerobic reactor is provided with a mud image recognition system for observing the reaction condition; the utility model discloses a coal chemical industry wastewater treatment device, wherein an internal circulation anaerobic reactor in the device is provided with a sludge image recognition system for analyzing the characteristic parameters of sludge, thereby effectively adjusting the process operation parameters in time and reminding the operation of matters needing attention in advance; the utility model discloses each reaction unit coupling linkage operation, the utility model provides a traditional coal gasification effluent treatment plant inefficiency, goes out unstable scheduling problem to can the energy recovery, energy saving consumes.
Description
Technical Field
The utility model belongs to the technical field of waste water treatment, a coal chemical industry effluent treatment plant is related to.
Background
With the increasing national environmental standards and the stricter environmental requirements, the importance of wastewater recycling is increasingly prominent. The components of the coal chemical industry wastewater are different according to different processing technologies, the coal gas wastewater, the coal oil wastewater, the coal coking wastewater, the coal methanol wastewater, the olefin wastewater and the like are mainly used, the wastewater has large water volume, but contains aromatic compounds and heterocyclic compounds, the wastewater has complex components and high pollutant concentration, phenol and cyanogen toxic substances in the wastewater inhibit the microbial activity, the biodegradability of the wastewater is poor, and the effluent is unstable. The biochemical treatment process generally adopts the following steps: the coal gas wastewater-hydrolytic acidification-AO-effluent has the problems of unstable system operation, low impact resistance, large occupied area, high operation cost and the like.
The coal gas wastewater belongs to high-organic matter and high-ammonia nitrogen wastewater, sludge is easy to run off, the conventional monitoring operation control is empirical and fuzzy, and when the indirect sludge index is found to be abnormal, the sludge is damaged, which seriously influences the normal operation of production. And whether the nitration system for removing ammonia nitrogen from the coal gas wastewater can normally operate is influenced by the front-end operation process unit, and the conventional treatment process cannot effectively degrade toxic substances for inhibiting nitrobacteria.
In order to solve the problems, the utility model discloses a coal chemical wastewater treatment device, the utility model discloses can solve operation monitoring lag in traditional device and the treatment process, the system operation is unstable, and shock resistance is low, and area is big, the scheduling problem of working costs.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model discloses a coal chemical industry effluent treatment plant, include the internal circulation anaerobic reactor, hydrolysis-acidification reaction tank and the compound reaction tank of mud membrane that set gradually according to the processing procedure of coal chemical industry waste water, internal circulation anaerobic reactor is provided with the mud image recognition system who is used for observing the reaction condition.
Further, the sludge image recognition system comprises a camera for collecting image information and a far-end server for receiving and processing signals fed back by the camera, the camera is arranged in the internal circulation anaerobic reactor, the far-end server is arranged outside the internal circulation anaerobic reactor, and the camera and the far-end server are connected in an electric connection mode. Since the working environment of the camera contains a large amount of liquid, the camera should use an underwater camera with real-time image transmission function or other products with equivalent functions, so as to observe the reflection condition in the internal circulation anaerobic reactor clearly in the environment.
Further, a regulating tank is arranged in front of the internal circulation anaerobic reactor, and a sedimentation tank and a denitrification filter tank are sequentially arranged behind the mud film composite reaction tank according to the treatment flow of the coal chemical industry wastewater; the adjusting tank is used for adjusting the quality and quantity of the coal chemical industry wastewater entering the internal circulation anaerobic reactor, and the denitrification filter tank is used for removing total nitrogen. The adjusting tank, the internal circulation anaerobic reactor, the hydrolysis acidification reaction tank, the multi-stage mud film composite reaction tank, the sedimentation tank and the denitrification filter tank are coupled and linked to run and have synergistic effect; the internal circulation anaerobic reactor is directly connected with the hydrolysis acidification reaction tank, and a sedimentation tank is not arranged in the middle; a combined filler or an elastic filler is arranged in the hydrolysis acidification reaction tank; the sedimentation tank adopts a radial flow sedimentation tank or a horizontal flow sedimentation tank, and the sludge part of the sedimentation tank reflows to the sludge film composite reaction tank.
Further, the compound reaction tank of mud membrane is multistage, and the compound reaction tank of mud membrane is arranged step by step according to the order by a plurality of reaction tanks and is formed promptly, and pending waste liquid then discharges again after each grade reaction tank reaction, the utility model discloses consider according to treatment effect and economic nature angle, be provided with 2-4 grades of reaction tanks, all be provided with dissolved oxygen, pH on-line detector in every grade of reaction tank and hang, float filler and aeration system.
Further, the internal circulation anaerobic reactor has a high-temperature operation mode and a medium-temperature operation mode, wherein the operation temperature of the internal circulation anaerobic reactor in the high-temperature operation mode is 50-55 ℃, and the operation temperature of the internal circulation anaerobic reactor in the medium-temperature operation mode is 30-35 ℃.
Further, the pH value of the effluent of the internal circulation anaerobic reactor is 6.8-8; in the step d, the pH value of the effluent of the composite reaction tank is 7-8.
Further, the operation temperature of the hydrolysis acidification reaction tank is between 25 and 30 ℃.
Further, the sludge obtained by precipitation flows back to the first-stage reaction tank of the sludge-membrane composite reaction tank, and the reflux ratio of the sludge is 50-200%.
Further, the denitrification hydraulic load of the denitrification filter tank is 2-3 m 3 /m 2 H, the denitrification filter is provided with filter tank flushing water and backwashing water, the filter tank flushing water adopts the effluent of the denitrification filter, and the backwashing water is discharged into the regulating tank.
The utility model has the advantages that:
the utility model discloses a coal chemical industry effluent treatment plant, an internal circulation anaerobic reactor in the plant is provided with a sludge image recognition system for analyzing the characteristic parameters of sludge, each operation parameter in the coal chemical industry effluent treatment process can be effectively adjusted in time, and the items needing attention in operation can be reminded in advance; each reaction unit coupling linkage operation, the utility model provides a traditional coal gasification effluent treatment plant inefficiency, go out unstable scheduling problem to can the energy recovery, the energy saving consumes.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
FIG. 1 is a schematic structural view of the present invention; COD is the chemical oxygen demand and ORP is the oxidation-reduction potential.
It is to be noted that the following description of the embodiments of the present invention is provided by specific examples, and other advantages and effects of the present invention can be easily understood by those skilled in the art from the disclosure of the present invention. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, and the features in the following embodiments and examples may be combined with each other without conflict.
Wherein the showings are for the purpose of illustrating the invention only and not for the purpose of limiting the same, and in which there is shown by way of illustration only and not in any way limiting the scope of the invention; for a better understanding of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "front", "back", etc., indicating directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for convenience of description and simplification of description, but it is not intended to indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore, the terms describing the positional relationships in the drawings are only used for illustrative purposes and are not to be construed as limiting the present invention, and those skilled in the art can understand the specific meanings of the terms according to specific situations.
As shown in the figure, the utility model discloses a coal chemical industry effluent treatment plant, include equalizing basin, inner loop anaerobic reactor, hydrolytic acidification reaction tank, mud membrane composite reaction pond, sedimentation tank and the denitrification filtering pond that sets gradually according to the processing procedure of coal chemical industry waste water, inner loop anaerobic reactor is provided with the mud image recognition system who is used for surveing the reaction condition. The adjusting tank is used for adjusting the quality and quantity of the coal chemical industry wastewater entering the internal circulation anaerobic reactor, and the denitrification filter tank is used for removing total nitrogen. The adjusting tank, the internal circulation anaerobic reactor, the hydrolysis acidification reaction tank, the multi-stage mud film composite reaction tank, the sedimentation tank and the denitrification filter tank are coupled and linked to run and have synergistic effect; the internal circulation anaerobic reactor is directly connected with the hydrolysis acidification reaction tank, and a sedimentation tank is not arranged in the middle; an elastic filler is arranged in the hydrolysis acidification reaction tank; the sedimentation tank adopts a radial flow sedimentation tank, sludge in the sedimentation tank partially flows back to the mud film composite reaction tank, the effluent of the sedimentation tank enters the denitrification filter tank, and the denitrification filter tank and the mud film composite reaction tank have synergistic effect, so that not only can a denitrification carbon source be ensured, but also the COD of the effluent is ensured to be less than or equal to 150mg/L.
In this embodiment, the sludge image recognition system includes a camera for acquiring image information and a remote server for receiving and processing a signal fed back by the camera, the camera is disposed in the internal circulation anaerobic reactor, the remote server is disposed outside the internal circulation anaerobic reactor, and the camera and the remote server are connected in an electrical connection manner. The camera adopts an underwater camera with an image real-time transmission function so as to clearly observe the reflection condition in the internal circulation anaerobic reactor in the environment, the underwater camera shoots the granular sludge image in the internal circulation anaerobic reactor in real time and transmits the image to the server, the server identifies the image and compares the image with a plurality of stored granular sludge images in optimal running to obtain a running conclusion of the sludge in the reactor, the sludge form and the internal structure change in the reactor are monitored in real time, and the running parameter change and the sludge flow rate of the reaction system are prevented in advance; the internal circulation anaerobic reactor has a high-temperature operation mode and a medium-temperature operation mode, the operation temperature of the internal circulation anaerobic reactor in the high-temperature operation mode is 50-55 ℃, the operation temperature of the internal circulation anaerobic reactor in the medium-temperature operation mode is 30-35 ℃, in the embodiment, a thermometer, a pH meter and an ORP online detector are further installed in the internal circulation anaerobic reactor for monitoring relevant data, which is a common technical means in the technical field and is not described herein again.
In this embodiment, the compound reaction tank of mud membrane is multistage, and the compound reaction tank of mud membrane is arranged step by step according to the order by a plurality of reaction tanks and is formed promptly, and pending waste liquid then discharges again after each grade reaction tank reaction, the embodiment of the utility model discloses a then according to treatment effect and economic nature angle consideration, set up 2 grades of reaction tanks, all be provided with dissolved oxygen, pH in every grade of reaction tank and hang, float filler and aeration system at the online detector.
The coal gas wastewater that follows to handle COD 6000 ~ 8000mg/L is the example, combines coal chemical wastewater treatment technology to further explain the utility model discloses a coal chemical wastewater treatment technology, this technology includes foretell coal chemical wastewater treatment device, and is specific including following step:
a. introducing the coal chemical wastewater into a regulating reservoir for water quality and water quantity regulation;
b. b, introducing the wastewater with the water quality and water quantity adjusted in the step a into an internal circulation anaerobic reactor, adding granular sludge into the internal circulation anaerobic reactor for reaction, wherein the sludge quantity SV30 (SV 30 refers to the volume percentage of sludge after an aeration tank mixed solution is static in a measuring cylinder and is settled for 30 min) is about 40%, the granular sludge is fluidized in the reactor under the action of internal backflow water and methane, the operation mode of the internal circulation anaerobic reactor is a medium-temperature operation mode, the temperature is controlled to be 34.5 ℃ (± 0.5 ℃), the pH value is 7, the ORP value is 450 (+/-100), an underwater camera shoots a granular sludge image in real time and transmits the image to a server, the server recognizes the image and compares the image with a large number of granular sludge images stored in the server, and the operation data is given after the server calculates to prompt whether the sludge is about to be lost or not; the effluent of the internal circulation anaerobic reactor obtained by the reaction enters a subsequent treatment step, and the byproduct methane obtained by the reaction is discharged from the top of the internal circulation anaerobic reactor and is collected;
c. b, introducing the effluent of the internal circulation anaerobic reactor in the step b into a hydrolysis acidification reaction tank for hydrolysis acidification treatment to improve the biodegradability of the effluent of the internal circulation anaerobic reactor, wherein the hydrolysis acidification reaction tank is hydraulically stayed for 14 hours and operates in an environment with water temperature of 29 ℃ (± 1.0 ℃), and elastic fillers are arranged in the reaction tank to keep the sludge amount in the tank; 4-6 submersible water impellers are arranged around the tank wall to ensure that water in the tank is uniformly mixed to obtain hydrolysis acidification effluent;
d. and c, introducing the hydrolysis acidification effluent in the step c into a mud film composite reaction tank, wherein the mud film composite reaction tank is provided with 2 stages, namely a first-stage mud film composite reaction tank and a second-stage mud film composite reaction tank, each stage of tank is internally provided with a suspended filler and an aeration system, and the adding amount of the suspended filler accounts for 20% of the volume of the tank body. The aeration quantity in the reaction tank is decreased gradually according to the decreasing of the water inlet concentration so as to ensure that the dissolved oxygen at the water outlet is 2-4 mg/L. Meanwhile, in order to meet the requirement of a carbon source required by a subsequent denitrification filter, a certain amount of organic matters are contained in the effluent water of the second-stage sludge-film composite reaction tank; the hydrolysis acidification effluent is subjected to multistage reaction in a mud membrane composite reaction tank to reduce the aeration rate, and then the composite reaction tank effluent is obtained;
e. d, introducing the effluent of the composite reaction tank in the step d into a sedimentation tank for sedimentation and solid-liquid separation, wherein the sedimentation tank adopts a radial flow type sedimentation tank, the effluent of the sedimentation tank obtained by sedimentation enters a next treatment device, the sludge obtained by sedimentation flows back to the sludge-membrane composite reaction tank, and the sludge in the sedimentation tank flows back to the first-stage sludge-membrane composite reaction tank according to the proportion of 100 percent;
f. and e, introducing the effluent of the sedimentation tank in the step e into a denitrification filter, carrying out denitrification reaction on the effluent of the sedimentation tank in the denitrification filter, and removing total nitrogen to obtain the effluent of the filter. And c, the denitrification filter is provided with filter tank flushing water and backwashing water, the filter tank flushing water adopts filter tank outlet water, and the backwashing water is discharged into the adjusting tank in the step a for retreatment.
Detect the denitrification filtering pond aquatic COD at last and be less than or equal to 150mg/L, the ammonia nitrogen is less than or equal to 1mg/L, and the SS is less than or equal to 10mg/L, show this to pass through the utility model discloses a device and technology can the effectual quality of water that improves coal gas.
Finally, the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the scope of the claims of the present invention.
Claims (9)
1. The utility model provides a coal chemical industry effluent treatment plant which characterized in that: the device comprises an adjusting tank, an internal circulation anaerobic reactor, a hydrolysis acidification reaction tank, a mud film composite reaction tank, a sedimentation tank and a denitrification filter which are sequentially arranged according to the treatment flow of the coal chemical industry wastewater, wherein the internal circulation anaerobic reactor is provided with a mud image recognition system for observing the reaction condition.
2. The coal chemical industry wastewater treatment device according to claim 1, characterized in that: the sludge image recognition system comprises a camera for collecting image information and a far-end server for receiving and processing signals fed back by the camera, the camera is arranged in the internal circulation anaerobic reactor, the far-end server is arranged outside the internal circulation anaerobic reactor, and the camera and the far-end server are connected in an electric connection mode.
3. The coal chemical industry wastewater treatment device according to claim 1, characterized in that: a regulating tank is arranged in front of the internal circulation anaerobic reactor, and a sedimentation tank and a denitrification filter tank are sequentially arranged behind the mud film composite reaction tank according to the treatment flow of the coal chemical industry wastewater; the adjusting tank is used for adjusting the quality and quantity of the coal chemical industry wastewater entering the internal circulation anaerobic reactor, and the denitrification filter tank is used for removing total nitrogen.
4. The coal chemical industry wastewater treatment device according to claim 1, characterized in that: the mud film composite reaction tank is multistage, and a dissolved oxygen and pH online detector suspension, a floating filler and an aeration system are arranged in each stage of reaction tank.
5. The coal chemical industry wastewater treatment device according to claim 1, characterized in that: the internal circulation anaerobic reactor has a high-temperature operation mode and a medium-temperature operation mode, wherein the operation temperature of the internal circulation anaerobic reactor in the high-temperature operation mode is 50-55 ℃, and the operation temperature of the internal circulation anaerobic reactor in the medium-temperature operation mode is 30-35 ℃.
6. The coal chemical industry wastewater treatment device according to claim 1, characterized in that: the pH value of the effluent of the internal circulation anaerobic reactor is 6.8-8; the pH value of the effluent of the mud film composite reaction tank is 7-8.
7. The coal chemical industry wastewater treatment device according to claim 1, characterized in that: the operation temperature of the hydrolysis acidification reaction tank is between 25 and 30 ℃.
8. The coal chemical industry wastewater treatment device according to claim 1, characterized in that: and the sludge obtained by sedimentation in the sedimentation tank flows back to the sludge film composite reaction tank, and the reflux ratio of the sludge is 50-200%.
9. The coal chemical industry wastewater treatment device according to claim 1, characterized in that: the denitrification hydraulic load of the denitrification filter tank is 2-3 m 3 /m 2 H, the denitrification filter is provided with filter tank flushing water and backwashing water, the filter tank flushing water adopts the effluent of the denitrification filter, and the backwashing water is discharged into the adjusting tank.
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| CN202222233597.7U CN218811012U (en) | 2022-08-24 | 2022-08-24 | Coal chemical wastewater treatment device |
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| CN202222233597.7U CN218811012U (en) | 2022-08-24 | 2022-08-24 | Coal chemical wastewater treatment device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115403218A (en) * | 2022-08-24 | 2022-11-29 | 中冶赛迪工程技术股份有限公司 | Coal chemical wastewater treatment device and treatment process |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115403218A (en) * | 2022-08-24 | 2022-11-29 | 中冶赛迪工程技术股份有限公司 | Coal chemical wastewater treatment device and treatment process |
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