CN217479219U - Active coke adsorption coupling coagulating sedimentation integrated system and sewage treatment device - Google Patents
Active coke adsorption coupling coagulating sedimentation integrated system and sewage treatment device Download PDFInfo
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- CN217479219U CN217479219U CN202220835693.6U CN202220835693U CN217479219U CN 217479219 U CN217479219 U CN 217479219U CN 202220835693 U CN202220835693 U CN 202220835693U CN 217479219 U CN217479219 U CN 217479219U
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Abstract
The utility model provides an active burnt absorption coupling coagulating sedimentation integration system and sewage treatment plant, include: the device comprises a mixing tank, a flocculation tank, a sedimentation tank and a sludge reflux pump; the mixing tank is communicated with a flocculation tank which is communicated with a sedimentation tank; the sludge reflux pump is communicated with the flocculation tank and the sedimentation tank; a flow guide device is arranged in the flocculation tank; the outer side of the flow guide device is provided with a peripheral annular adding point, and a conveying pipeline is communicated to the inner side of the flow guide device; an active coke feeding device and a flocculating agent feeding device are arranged in the flocculation tank, the active coke feeding device is arranged at the peripheral annular feeding point, and the flocculating agent feeding device is arranged on the inner side of the flow guide device. The system has the advantages of small occupied area, low operation cost and simple and convenient maintenance, and the active coke can be fully contacted with pollutants in the reinforced coagulating sedimentation system, so that the removal effect of organic pollutants with larger molecular weight is enhanced.
Description
Technical Field
The utility model relates to a sewage treatment technical field specifically, relates to active burnt absorption coupling coagulating sedimentation integration system and sewage treatment plant.
Background
The adsorption and the coagulating sedimentation are common water supply treatment and sewage advanced treatment processes, and can respectively have good removal effects on organic pollutants and particle pollutants. The two process units are generally arranged in series in the water supply and sewage treatment, the practical defects of long process flow, large occupied area and complex operation and maintenance exist, and the research and development of the adsorption and coagulation precipitation integrated coupling process can effectively shorten the process flow, reduce the occupied area and reduce the maintenance difficulty while ensuring the treatment effect. Meanwhile, with urgent needs of removing trace toxic pollutants in water supply, improving the standard of sewage recycling and the like, the original water supply plant and sewage plant are in need of upgrading and rebuilding, the increase of process units often face the limitation of land use and field implementation conditions, the treatment performance of the original process units is urgently needed to be improved under the condition of not increasing the occupied area, and the adsorption coupling coagulation sedimentation process can meet the needs.
The prior reinforced coagulating sedimentation process commonly used in the water supply and sewage treatment process can not effectively remove organic pollutants with large molecular weight, and has higher cost.
Patent document CN112624423A provides a multistage coagulating sedimentation device, belong to sewage treatment device technical field, this multistage coagulating sedimentation device has the box, the inside cavity of box forms the holding chamber, the holding intracavity is provided with a plurality of baffles, a plurality of baffles set up and separate the holding chamber for the coagulating basin that establishes ties in proper order along the length direction order interval in holding chamber, the flocculation basin, the sedimentation tank, the clarification tank, filtering ponds and backwash pond, the coagulating basin is connected with the inlet tube, the backwash pond is connected with the outlet pipe.
Patent document CN112174395A provides a multistage coagulating sedimentation device, comprising: the coagulation stirring tank is connected with the water inlet pipe and is provided with a coagulant adding pipe and a coagulation stirring device; the lower part of the side wall of the flocculation stirring tank is communicated with the coagulation stirring tank, and the flocculation stirring tank is provided with a flocculating agent adding pipe and a flocculation stirring device; the free sedimentation tank is arranged on one side of the flocculation stirring tank, which is far away from the coagulation stirring tank, and the upper part of the side wall of the free sedimentation tank is communicated with the flocculation stirring tank; the deep stirring pond sets up the one side of keeping away from the flocculation stirring pond at free sedimentation tank, and the lateral wall top and the free sedimentation tank intercommunication in deep stirring pond, deep stirring pond are provided with coagulant and mend and throw pipe, flocculating agent and mend and throw pipe and deep stirring device, and one side and outlet pipe connection of free sedimentation tank are kept away from in deep stirring pond.
The prior patents fail to solve the problems that organic pollutants with large molecular weight cannot be effectively removed and the cost is high.
SUMMERY OF THE UTILITY MODEL
To the defects in the prior art, the utility model aims at providing an active burnt absorption coupling coagulating sedimentation integrated system and sewage treatment plant.
According to the utility model provides a pair of active burnt absorption coupling coagulating sedimentation integration system, include: a mixing tank, a flocculation tank, a sedimentation tank and a sludge reflux pump;
the mixing tank is communicated with the flocculation tank through a conveying pipeline, and the flocculation tank is communicated with the sedimentation tank;
the sludge reflux pump is communicated with the flocculation tank and the sedimentation tank;
and an active coke feeding device is arranged in the flocculation tank.
Preferably, the mixing tank comprises: coagulant adding equipment and a first stirring device;
the first stirring device is arranged in the mixing tank;
the coagulant adding equipment is arranged in the mixing tank;
the hydraulic retention time of the mixing pool is 0.5-3 min.
Preferably, the flocculation basin further comprises: a flocculating agent adding device and a second stirring device;
the second stirring device is arranged in the flocculation tank;
the flocculating agent adding equipment is arranged in the flocculating tank;
the flocculating agent feeding device and the active coke feeding device are arranged separately and are fed continuously;
the hydraulic retention time of the flocculation tank is 5-20 min.
Preferably, an inclined plate is installed in the sedimentation tank.
Preferably, the mixing tank is provided with a liquid inlet.
Preferably, the sedimentation tank is provided with a liquid outlet.
Preferably, the sedimentation tank is provided with a sludge pump.
Preferably, the surface load of the precipitation zone is 10m 3 /(m 2 ·h)-20m 3 /(m 2 ·h)。
Preferably, the sludge reflux ratio set by the sludge reflux pump is 3-6%.
Preferably, a sewage treatment device adopts the active coke adsorption coupling coagulating sedimentation integrated system.
Preferably, active coke is arranged in the active coke feeding equipment, and the particle size of the active coke is 18-50 meshes.
Preferably, a flow guide device is arranged in the flocculation tank, a peripheral annular adding point is arranged on the outer side of the flow guide device, the conveying pipeline is communicated to the inner side of the flow guide device, active coke adding equipment and flocculating agent adding equipment are arranged in the flocculation tank, the active coke adding equipment is arranged at the peripheral annular adding point, and the flocculating agent adding equipment is arranged on the inner side of the flow guide device;
the active coke is thrown through active coke and is thrown the feeder apparatus and pass through the flocculating agent with throwing of equipment and put the position difference, the flocculating agent is thrown the feeder apparatus setting and is in the guiding device, active coke is thrown the feeder apparatus setting outside the guiding device, and the mixing tank goes out the liquid and carries to the guiding device inboard through pipeline, preferentially takes place to react with the flocculating agent and generate the floc granule, then takes place to react with the active coke in the guiding device outside again. The activated coke can be directly adsorbed to strengthen removal of pollutants in water, can be combined with flocs, and can be used for re-adsorption removal of pollutants released by extracellular polymers in the floc coagulation process, and in addition, the activated coke can also be used as a crystal nucleus to improve the formation effect and the subsequent precipitation effect of floc alum flocs in the flocculation process.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. the system has the advantages of small occupied area, low operation cost and simple and convenient maintenance, and the active coke can be fully contacted with pollutants in the reinforced coagulating sedimentation system.
2. The system has wide application range and meets the application scenes of water supply treatment, sewage recycling, river and lake strengthening treatment, industrial wastewater advanced treatment and the like.
3. In the system, the feed liquor of the flocculation tank is firstly contacted with a flocculating agent feeding device and then contacted with an active coke feeding device, so that the active coke fed by the active coke feeding device can directly adsorb organic pollutants and can also be combined with flocs to re-adsorb and remove pollutants released by extracellular polymers in the floc coagulation process.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a schematic diagram of the connection of an active coke adsorption coupling coagulating sedimentation integrated system;
shown in the figure:
Detailed Description
The present invention will be described in detail with reference to the following embodiments. The following examples will assist those skilled in the art in further understanding the present invention, but are not intended to limit the invention in any way. It should be noted that various changes and modifications can be made by one skilled in the art without departing from the spirit of the invention. These all belong to the protection scope of the present invention.
Example 1
As shown in fig. 1, an active coke adsorption coupling coagulating sedimentation integrated system, which can be used for a sewage treatment device, comprises: the system comprises a mixing tank 1, a flocculation tank 2, a sedimentation tank 3, a sludge reflux pump 4 and a sludge discharge pump 5; mixing tank 1 passes through pipeline 26 intercommunication flocculation basin 2, and flocculation basin 2 intercommunication sedimentation tank 3, and 4 intercommunication flocculation basins 2 and sedimentation tank 3 of mud backwash pump, 3 installations mud pump 5 in the sedimentation tank. The inside of flocculation basin 2 sets up guiding device 24, and the guiding device 24 outside sets up peripheral annular and throws with adding the point 25, and pipeline 26 communicates to the inside of guiding device 24, sets up active coke in flocculation basin 2 and throws with equipment 22 and flocculating agent and throw with equipment 21, and active coke is thrown with equipment 22 and is set up in peripheral annular and throws with adding point 25 department, and flocculating agent is thrown with equipment 21 and is set up in guiding device 24 inboard. The liquid discharged from the mixing tank 1 is conveyed to the inner side of the diversion device 24 through the conveying pipeline 26, and reacts with the flocculating agent preferentially to generate floc particles, and then reacts with the active coke on the outer side of the diversion device 24.
The mixing tank 1 includes: a coagulant adding device 12 and a first stirring device 13; a first stirring device 13 is arranged in the mixing tank 1, a coagulant adding device 12 is arranged in the mixing tank 1, the coagulant added by the coagulant adding device 12 is stirred with other solutions in the mixing tank 1 through the first stirring device 13, and the mixing tank 1 is provided with a liquid inlet 11. The flocculation tank 2 is also provided with a second stirring device 23, a flocculating agent adding device 21 is arranged in the flocculation tank 2, and a flocculating agent added by the flocculating agent adding device 21, active coke added by the active coke adding device 22 and other sewage solutions in the flocculation tank 2 are stirred by the second stirring device 23. An inclined plate 31 is arranged in the sedimentation tank 3, and a liquid outlet 32 is arranged in the sedimentation tank 3.
Example 2
Example 2 is a preferred example of example 1.
After sewage enters from the liquid inlet 11, a coagulant adding device 12 adds a coagulant into the mixing tank 1, and the mixture is uniformly stirred by a first stirring device 13 and undergoes coagulation reaction in the mixing tank 1. The liquid after coagulation reaction enters a flow guide device 24 of the flocculation tank 2, and a flocculating agent adding device 21 positioned on the inner side of the flow guide device 24 adds a flocculating agent to the flocculation tank 2. Active burnt feeder apparatus 22 is thrown active burnt and is thrown to flocculation basin 2 in the guiding device 24 outside, the flocculating agent stirs the mixing through second agitating unit 23 and carries out flocculation reaction in flocculation basin 2 and form the floc, then react with the active burnt emergence in the guiding device 24 outside again, active burnt not only can directly adsorb the enhancement and get rid of aquatic pollutant, simultaneously still can combine with the floc, the pollutant that extracellular polymeric substance released among the floc coagulation process carries out the desorption and gets rid of, in addition active burnt still can be the crystal nucleus, promote the formation effect and the follow-up precipitation effect of floc alum floc among the flocculation process. The floc sludge containing the active coke is subjected to solid-liquid separation in the sedimentation tank 3, and the supernatant is discharged from a liquid outlet 32; the sludge containing the active coke is precipitated at the bottom of the sedimentation tank 3, part of the sludge is refluxed to the flocculation tank 2 by the sludge reflux pump 4, and part of the sludge is directly discharged by the sludge discharge pump 5. An active coke recovery device is allowed to be arranged behind the sludge discharge system, and the discharged sludge containing the active coke selectively recovers and recycles the active coke according to the quality of the incoming water.
In the embodiment, the activated coke adding equipment 22 is added into the mixing tank 1, the activated coke adding equipment 22 is internally provided with the activated coke which can not be recycled, the activated coke is discharged out of the system along with the residual sludge through the sludge discharge pump 5 and is recycled after being separated from the sludge through the cyclone separator, or the sludge containing the activated coke directly flows back to the flocculation tank 2 through the sludge reflux pump 4, and the specific process selection needs to be determined according to the characteristics of adsorbed pollutants.
The adding amount of the active coke can be within 20g/m 3 -200g/m 3 The grain diameter of the active coke is preferably between 18 meshes and 50 meshes (1mm to 0.3mm), the hydraulic retention time of the mixing tank 1 is preferably 0.5 to 3min, the hydraulic retention time of the flocculation tank 2 is 5 to 20min, and the surface load of the sedimentation tank 3 is preferablyPreferably 10m 3 /(m 2 ·h)-20m 3 /(m 2 H) the sludge reflux ratio is 3-6%.
The adding amount of the active coke is determined according to the concentration of pollutants to be removed, the particle size of the active coke is proper, the active coke is too small and is easy to discharge with effluent, the active coke cannot strengthen the formation of floc alum flocs when being too large, and the particle size of the active coke can change in the circulating process, so the proper particle size range is determined by combining the factors and is 18-50 meshes.
The hydraulic retention time of the mixing tank 1 can ensure the mixing effect, the hydraulic retention time of the flocculation tank 2 can ensure the formation and growth of floc alum floc, and the surface load of the sedimentation tank 3 can be reduced as much as possible on the premise of ensuring the solid-liquid separation effect so as to reduce the occupied area.
Example 3
Active coke adsorption coupling coagulating sedimentation integrated system applied to feed water treatment, wherein the active coke adding amount is 20g/m 3 The grain diameter is 18 meshes (1mm), the hydraulic retention time of the mixing tank 1 is 0.5min, the hydraulic retention time of the flocculation tank 2 is 5min, and the surface load of the sedimentation tank 3 is 20m 3 /(m 2 H) the sludge reflux ratio was 6%. The concentration of soluble organic matters and suspended matters in the feed water treatment is low, larger particle size, smaller adding amount, shorter retention time and larger surface load can be selected, and an active coke recovery device is arranged at the rear end of a sludge discharge system to recycle the active coke contained in the discharged sludge.
Example 4
Active coke adding amount is measured and taken 50g/m 3 The particle size is 35 meshes (0.5mm), the hydraulic retention time of the mixing tank 1 is 2min, the hydraulic retention time of the flocculation tank 2 is 10min, and the surface load of the sedimentation tank 3 is 15m 3 /(m 2 H) sludge reflux ratio of 4%. The concentration of soluble organic matters and suspended matters in the sewage deep treatment is high, and medium particle size, large adding amount, long retention time and medium surface load need to be selected.
Example 5
Active coke adsorption coupling coagulating sedimentation integrated system and process applied to advanced treatment of coal gasification wastewater, wherein 200g/m of active coke is taken as an added quantity 3 The grain diameter is 50 meshes (0.3mm), the hydraulic retention time of the mixing tank 1 is 3min, the hydraulic retention time of the flocculation tank 2 is 20min, and the surface load of the sedimentation tank 3 is 10m 3 /(m 2 H) sludge reflux ratio of 3%. The content of soluble organic matters in the coal gasification wastewater advanced treatment is high, so that a smaller particle size, a larger adding amount and a sufficiently long retention time are required to be selected to ensure the adsorption removal effect, and meanwhile, a smaller surface load is required to ensure the solid-liquid separation effect because the particle size of the active coke is smaller.
In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore, are not to be construed as limiting the present application.
The foregoing description of the specific embodiments of the invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the essential spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.
Claims (8)
1. An active coke adsorption coupling coagulating sedimentation integrated system is characterized by comprising: a mixing tank (1), a flocculation tank (2), a sedimentation tank (3) and a sludge discharge pump (5);
the mixing tank (1) is communicated with the flocculation tank (2) through a conveying pipeline (26), and the flocculation tank (2) is communicated with the sedimentation tank (3);
a flow guide device (24) is arranged in the flocculation tank (2), a peripheral annular feeding point (25) is arranged on the outer side of the flow guide device (24), and the conveying pipeline (26) is communicated to the inner side of the flow guide device (24);
an active coke adding device (22) and a flocculant adding device (21) are arranged in the flocculation tank (2), the active coke adding device (22) is arranged at the peripheral annular adding point (25), and the flocculant adding device (21) is arranged at the inner side of the flow guide device (24);
and the sedimentation tank (3) is provided with a sludge pump (5).
2. The integrated active coke adsorption-coupled coagulative precipitation system according to claim 1, wherein the mixing tank (1) comprises: coagulant adding equipment (12) and a first stirring device (13);
the first stirring device (13) is arranged in the mixing pool (1);
and the coagulant adding equipment (12) is arranged in the mixing tank (1).
3. The active coke adsorption coupling coagulating sedimentation integrated system according to claim 1, wherein: and a second stirring device (23) is arranged in the flocculation tank (2).
4. The active coke adsorption coupling coagulating sedimentation integrated system according to claim 1, wherein: an inclined plate (31) is arranged in the sedimentation tank (3).
5. The active coke adsorption coupling coagulating sedimentation integrated system according to claim 1, characterized in that: the mixing tank (1) is provided with a liquid inlet (11).
6. The active coke adsorption coupling coagulating sedimentation integrated system according to claim 1, wherein: the sedimentation tank (3) is provided with a liquid outlet (32).
7. The active coke adsorption coupling coagulating sedimentation integrated system according to claim 1, wherein: a sludge reflux pump (4) is arranged on the sedimentation tank (3);
the sludge reflux pump (4) is communicated with the flocculation tank (2) and the sedimentation tank (3).
8. A sewage treatment device, characterized in that the sewage treatment device adopts the active coke adsorption coupling coagulating sedimentation integrated system according to any one of claims 1 to 7.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220835693.6U CN217479219U (en) | 2022-04-12 | 2022-04-12 | Active coke adsorption coupling coagulating sedimentation integrated system and sewage treatment device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220835693.6U CN217479219U (en) | 2022-04-12 | 2022-04-12 | Active coke adsorption coupling coagulating sedimentation integrated system and sewage treatment device |
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| CN217479219U true CN217479219U (en) | 2022-09-23 |
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| CN202220835693.6U Active CN217479219U (en) | 2022-04-12 | 2022-04-12 | Active coke adsorption coupling coagulating sedimentation integrated system and sewage treatment device |
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