CN211005015U - Breed pretreatment of water system that gives up - Google Patents
Breed pretreatment of water system that gives up Download PDFInfo
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- CN211005015U CN211005015U CN201921973698.XU CN201921973698U CN211005015U CN 211005015 U CN211005015 U CN 211005015U CN 201921973698 U CN201921973698 U CN 201921973698U CN 211005015 U CN211005015 U CN 211005015U
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Abstract
The utility model discloses a breeding wastewater pretreatment system, which comprises a first water collecting tank arranged in a first breeding area for collecting liquid excrement in the first breeding area, a slag collecting tank arranged in the first breeding area for collecting solid excrement in the first breeding area, a second water collecting tank arranged in a second breeding area for collecting waste liquid in the second breeding area, an anaerobic reaction tank, a sedimentation tank, an oxidation pond, a secondary dry-wet separation tank and a treatment regulating tank, wherein the first water collecting tank is communicated with the sedimentation tank, the second water collecting tank is communicated with the sedimentation tank, the sedimentation tank is communicated with the oxidation pond, the oxidation pond is communicated with the treatment regulating tank, and the slag collecting tank is communicated with the anaerobic reaction tank, the utility model relates to a high-concentration breeding wastewater pretreatment system, the first breeding area is a high COD breeding area in the system, the second breeding area is a low COD breeding area, and the liquids in the two breeding areas are mixed with each other, can reduce the COD content of the sewage during the discharge to the maximum extent, and is convenient for the treatment in the later period.
Description
Technical Field
The utility model belongs to the technical field of waste water treatment, specifically a breed waste water pretreatment systems.
Background
The wastewater treatment is to treat the wastewater by physical, chemical and biological methods, so that the wastewater is purified, the pollution is reduced, the wastewater is recycled and reused, and water resources are fully utilized. A process of separating each pollutant in the wastewater or converting the pollutant into harmless substances;
and breed waste water pretreatment system is to carrying out the system of preliminary treatment to waste water in the plant, current plant is when waste water discharge, the waste liquid independent processing of high COD culture area and low COD culture area discharges, the solid waste residue in high COD culture area only carries out simple anaerobic treatment and does wet separation and just directly discharges the natural pond liquid that produces, the content of COD is high in the natural pond liquid like this, the later stage sewage treatment degree of difficulty is very big, the liquid waste water in high COD culture area directly discharges after simple deposit and oxidation reaction, it is more to lead to the suspension in the liquid of discharging, it increases to lead to the post treatment degree of difficulty equally, and the waste water in low COD culture area is most cleaner, do not do the processing generally or only carry out simple filtration back and directly discharge, the wasting of resources.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's defect, provide a breed waste water pretreatment systems.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a breeding wastewater pretreatment system comprises a first water collecting tank arranged in a first breeding area and used for collecting liquid excrement in the first breeding area, a slag collecting tank arranged in the first breeding area and used for collecting solid excrement in the first breeding area, a second water collecting tank arranged in a second breeding area and used for collecting waste liquid in the second breeding area, an anaerobic reaction tank, a sedimentation tank, an oxidation pond, a secondary dry-wet separation tank and a treatment regulating tank, wherein,
the first water collecting tank is communicated with the sedimentation tank, so that liquid excrement collected in the first water collecting tank is conveyed into the sedimentation tank;
the second water collecting tank is communicated with the sedimentation tank, so that flushing liquid collected in the second water collecting tank is conveyed into the sedimentation tank;
the sedimentation tank is communicated with the oxidation pond, so that the mixed liquid precipitated by the sedimentation tank is conveyed into the oxidation pond;
the oxidation pond is communicated with the treatment regulating pond, so that the oxidation mixed liquor in the oxidation pond is conveyed into the treatment regulating pond;
the slag collecting groove is communicated with the anaerobic reaction tank, so that solid excrement collected in the slag collecting groove is conveyed into the anaerobic reaction tank;
the anaerobic reaction tank is communicated with the secondary dry-wet separation tank, so that the mixed biogas slurry in the anaerobic reaction tank is conveyed into the secondary dry-wet separation tank;
and the secondary dry-wet separation tank is communicated with the treatment regulating tank, so that the biogas slurry in the secondary dry-wet separation tank is conveyed into the treatment regulating tank.
Preferably, the ground of the first culture area is of an inclined structure, the first water collecting tank is arranged at the lower end of the ground of the first culture area, the slag collecting tank is arranged at the high end of the ground of the first culture area, and a dung scraping plate for scraping solid excrement in the first culture area from the lower end to the high-end slag collecting tank is further arranged on the ground of the first culture area.
Preferably, the first culture area ground with be provided with the primary filter screen between the first water catch bowl, the first water catch bowl with be provided with the secondary filter screen between the sedimentation tank, the mesh number of secondary filter screen is higher than the mesh number of primary filter screen.
Preferably, an inclined screen is arranged between the second water collecting tank and the sedimentation tank.
Preferably, the sedimentation tank adopts tertiary sedimentation tank, including first sedimentation tank, second sedimentation tank and third sedimentation tank, the height of first sedimentation tank, second sedimentation tank and third sedimentation tank is progressively reduced gradually, makes the inside mixed liquid of first sedimentation tank, second sedimentation tank and third sedimentation tank can flow through the overflow mode.
Preferably, first water catch bowl with be provided with first pipeline network between the first sedimentation tank, be provided with the valve No. one on the first pipeline network, No. one the valve can be controlled mixed liquid gets into first sedimentation tank or second sedimentation tank, first sedimentation tank with be provided with the valve No. two between the second sedimentation tank, through No. two the valve can be controlled by the mixed liquid that flows in the first sedimentation tank and get into second sedimentation tank or third sedimentation tank, the second sedimentation tank with all be equipped with the output pipeline who is used for discharging the precipitation in the third sedimentation tank.
Preferably, the first valve and the second valve both adopt three-way valves.
The utility model relates to a breed pretreatment of waste water system, first breed district is high COD breed district among this system, its inside mixed excrement COD content is higher, the second breed district is low COD breed district, its inside waste liquid COD content is lower, mix the liquid in these two breed districts each other, utilize the clean degree of low COD breed district waste water COD higher and the characteristic that COD content is lower to dilute high COD breed district waste water, can reduce the COD content of sewage when discharging to the maximum extent, facilitate the later stage's processing, and low COD breed district waste water has also accomplished the effect of reutilization like this;
waste liquid in the first breed district gets into the sedimentation tank after the filtration of one-level filter screen and second grade filter screen in this system and deposits, the second filter screen gets into the sedimentation tank after the inclined screen filters and deposits, and the sedimentation tank adopts tertiary sedimentation tank, make the mixed liquid suspended solid content after the sedimentation treatment lower, suspended solid content when the waste liquid discharge after can greatly reducing at last and natural pond liquid mixes like this, and this kind of tertiary sedimentation tank can clear up corresponding sedimentation tank under the normal operating condition that does not influence entire system.
Drawings
FIG. 1 is a block diagram of a wastewater treatment process of a pretreatment system for aquaculture wastewater;
figure 2 is the utility model discloses a sedimentation tank connection diagram among breed waste water pretreatment system.
Detailed Description
The following will further describe a specific embodiment of the pretreatment system for aquaculture wastewater according to the present invention with reference to the accompanying drawings 1-2. The utility model relates to a pretreatment of water system is not restricted to the description of following embodiment to breed.
Example 1:
the embodiment provides a concrete structure of a breeding wastewater pretreatment system, which comprises a first water collecting tank arranged in a first breeding area for collecting liquid excrement in the first breeding area, a slag collecting tank arranged in the first breeding area for collecting solid excrement in the first breeding area, a second water collecting tank arranged in a second breeding area for collecting waste liquid in the second breeding area, an anaerobic reaction tank, a sedimentation tank, an oxidation pond, a secondary dry-wet separation tank and a treatment regulation tank, as shown in fig. 1, wherein,
the first water collecting tank is communicated with the sedimentation tank, so that liquid excrement collected in the first water collecting tank is conveyed into the sedimentation tank;
the second water collecting tank is communicated with the sedimentation tank, so that flushing liquid collected in the second water collecting tank is conveyed into the sedimentation tank;
the sedimentation tank is communicated with the oxidation pond, so that the mixed liquid precipitated by the sedimentation tank is conveyed into the oxidation pond;
the oxidation pond is communicated with the treatment regulating pond, so that the oxidation mixed liquor in the oxidation pond is conveyed into the treatment regulating pond;
the slag collecting groove is communicated with the anaerobic reaction tank, so that solid excrement collected in the slag collecting groove is conveyed into the anaerobic reaction tank;
the anaerobic reaction tank is communicated with the secondary dry-wet separation tank, so that the mixed biogas slurry in the anaerobic reaction tank is conveyed into the secondary dry-wet separation tank;
the secondary dry-wet separation tank is communicated with the treatment adjusting tank, so that biogas slurry in the secondary dry-wet separation tank is conveyed into the treatment adjusting tank.
The ground of first breed district adopts the slope structure, and first water catch bowl sets up in the low side on first breed district ground, and the collection cinder groove sets up in the high-end on first breed district ground, and first breed district still is provided with on the ground to be used for scraping the solid excrement in the first breed district to the dung scraping plate in the high-end collection cinder groove by the low side.
A first-stage filter screen is arranged between the ground of the first culture area and the first water collecting tank, a second-stage filter screen is arranged between the first water collecting tank and the sedimentation tank, and the mesh number of the second-stage filter screen is higher than that of the first-stage filter screen.
An inclined screen is arranged between the second water collecting tank and the sedimentation tank.
By adopting the technical scheme:
the first culture area is a culture area with high COD content, such as a cowshed, the second culture area is a culture area with low COD content, such as a milking platform, mixed excrement in the first culture area is firstly divided into solid excrement and liquid excrement under the action of a dung scraping plate, wherein the solid excrement is scraped into a residue collecting groove at the high end of the first culture area through the dung scraping plate, then the solid excrement passes through an anaerobic reaction tank for anaerobic reaction, biogas and mixed biogas slurry are generated after the anaerobic reaction, the biogas is recovered through a gas collecting pipeline, the mixed biogas slurry enters a secondary dry-wet separation tank for dry-wet separation, finally the separated biogas slurry enters a treatment regulating tank, the liquid excrement flows to the lower end of the first culture area, enters a first water collecting groove after being filtered by a primary filter screen, then enters a sedimentation tank after being filtered by a secondary filter screen through the first water collecting tank, and flushing liquid of the second culture area flows into a second water collecting tank, the mixed liquid after sedimentation enters an oxidation pond to be oxidized and flows into a treatment adjusting tank, and the mixed liquid is mixed with the biogas slurry after dry-wet separation and is discharged, so that the content of suspended matters and COD in the biogas slurry can be greatly reduced, and the standard discharge can be realized.
Example 2:
this embodiment provides a concrete structure of breeding pretreatment of waste water system, as shown in fig. 2, the sedimentation tank adopts tertiary sedimentation tank, including first sedimentation tank, second sedimentation tank and third sedimentation tank, the height of first sedimentation tank, second sedimentation tank and third sedimentation tank is degressive step by step, makes the inside mixed liquid of first sedimentation tank, second sedimentation tank and third sedimentation tank flow through overflow pipeline's mode.
Be provided with first pipeline network between first water catch bowl and the first sedimentation tank, be provided with the valve No. one on the first pipeline network, the mixed liquid that can control through the valve No. one gets into first sedimentation tank or second sedimentation tank, be provided with the valve No. two between first sedimentation tank and the second sedimentation tank, can control by the mixed liquid that flows in the first sedimentation tank and get into second sedimentation tank or third sedimentation tank through the valve No. two, all be equipped with the output pipeline that is used for discharging the precipitation in second sedimentation tank and the third sedimentation tank.
The first valve and the second valve are all three-way valves.
By adopting the technical scheme:
because the sedimentation tank adopts the three-stage sedimentation tank, the mixed liquid in the culture area can be more thoroughly sedimentated, and the corresponding sedimentation tank can be cleared under the normal use without influencing the system by opening and closing the corresponding valve when the sedimentation tank is cleared, namely when the first sedimentation tank needs to be cleared, the mixed liquid in the culture area is controlled by a valve I to directly flow to the second sedimentation tank, then flow to the third sedimentation tank from the second sedimentation tank, and finally be discharged from an output pipeline of the third sedimentation tank, when the second sedimentation tank needs to be cleared, the mixed liquid in the culture area entering the first sedimentation tank is controlled by a valve II to directly flow to the third sedimentation tank and then be discharged from an output pipeline of the third sedimentation tank, when the third sedimentation tank needs to be cleared, the output pipeline of the second sedimentation tank is opened, the mixed liquid in the culture area enters the first sedimentation tank, enters the second sedimentation tank, is secondarily sedimented and then is directly discharged from the output pipeline on the second sedimentation tank, the sedimentation tank can be cleaned one by one without affecting the normal operation of the whole system.
Example 3:
the embodiment provides a concrete structure of a breeding wastewater pretreatment system, in the utility model, a first breeding area and a second breeding area are both arranged above the ground, the second breeding area adopts an inclined structure, a second water collecting tank is arranged at the lower end of the inclined structure, and the liquid in the first breeding area and the liquid in the second breeding area can flow into the first water collecting tank and the second water collecting tank respectively through gravity reasons;
the utility model discloses well anaerobic reaction pond, wet separation tank is done to the second grade, handle the equalizing basin, sedimentation tank and oxidation pond all set up in the below ground, can realize the frostproofing effect of pipeline like this, and anaerobic reaction pond, wet separation tank is done to the second grade, the level of handling the equalizing basin steadilys decrease in proper order, can directly realize anaerobic reaction pond through gravity like this, wet separation tank is done to the second grade, handle the circulation between the equalizing basin, the sedimentation tank, the oxidation pond, the level of handling the equalizing basin steadilys decrease in proper order, can directly realize the sedimentation tank through gravity like this, the oxidation pond, handle the circulation between the equalizing basin.
The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.
Claims (7)
1. The utility model provides a breed pretreatment of water system that gives up which characterized in that: comprises a first water collecting tank arranged in a first breeding area and used for collecting liquid excrement in the first breeding area, a slag collecting tank arranged in the first breeding area and used for collecting solid excrement in the first breeding area, a second water collecting tank arranged in a second breeding area and used for collecting waste liquid in the second breeding area, an anaerobic reaction tank, a sedimentation tank, an oxidation pond, a secondary dry-wet separation pond and a treatment regulating pond, wherein,
the first water collecting tank is communicated with the sedimentation tank, so that liquid excrement collected in the first water collecting tank is conveyed into the sedimentation tank;
the second water collecting tank is communicated with the sedimentation tank, so that flushing liquid collected in the second water collecting tank is conveyed into the sedimentation tank;
the sedimentation tank is communicated with the oxidation pond, so that the mixed liquid precipitated by the sedimentation tank is conveyed into the oxidation pond;
the oxidation pond is communicated with the treatment regulating pond, so that the oxidation mixed liquor in the oxidation pond is conveyed into the treatment regulating pond;
the slag collecting groove is communicated with the anaerobic reaction tank, so that solid excrement collected in the slag collecting groove is conveyed into the anaerobic reaction tank;
the anaerobic reaction tank is communicated with the secondary dry-wet separation tank, so that the mixed biogas slurry in the anaerobic reaction tank is conveyed into the secondary dry-wet separation tank;
and the secondary dry-wet separation tank is communicated with the treatment regulating tank, so that the biogas slurry in the secondary dry-wet separation tank is conveyed into the treatment regulating tank.
2. The pretreatment system for aquaculture wastewater of claim 1, wherein: the ground of the first breeding area is of an inclined structure, the first water collecting tank is arranged at the low end of the ground of the first breeding area, the slag collecting tank is arranged at the high end of the ground of the first breeding area, and the ground of the first breeding area is also provided with a dung scraping plate which is used for scraping solid excrement in the first breeding area into the slag collecting tank at the high end from the low end.
3. The pretreatment system for aquaculture wastewater of claim 1, wherein: first breed district ground with be provided with the one-level filter screen between the first water catch bowl, the first water catch bowl with be provided with the second grade filter screen between the sedimentation tank, the mesh number of second grade filter screen is higher than the mesh number of one-level filter screen.
4. The pretreatment system for aquaculture wastewater of claim 1, wherein: an inclined screen is arranged between the second water collecting tank and the sedimentation tank.
5. The pretreatment system for aquaculture wastewater of claim 1, wherein: the sedimentation tank adopts tertiary sedimentation tank, including first sedimentation tank, second sedimentation tank and third sedimentation tank, the height of first sedimentation tank, second sedimentation tank and third sedimentation tank diminishes progressively step by step, makes the inside mixed liquid of first sedimentation tank, second sedimentation tank and third sedimentation tank can flow through the overflow mode.
6. The pretreatment system for aquaculture wastewater of claim 5, wherein: first water catch bowl with be provided with first pipeline network between the first sedimentation tank, be provided with the valve No. one on the first pipeline network, the valve can be controlled No. one the mixed liquid gets into first sedimentation tank or second sedimentation tank, first sedimentation tank with be provided with the valve No. two between the second sedimentation tank, through No. two the valve can be controlled and get into second sedimentation tank or third sedimentation tank by the mixed liquid that flows in the first sedimentation tank, the second sedimentation tank with all be equipped with the output pipeline who is used for discharging the precipitation in the third sedimentation tank.
7. The pretreatment system for aquaculture wastewater of claim 6, wherein: the first valve and the second valve are all three-way valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921973698.XU CN211005015U (en) | 2019-11-15 | 2019-11-15 | Breed pretreatment of water system that gives up |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921973698.XU CN211005015U (en) | 2019-11-15 | 2019-11-15 | Breed pretreatment of water system that gives up |
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| CN211005015U true CN211005015U (en) | 2020-07-14 |
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| CN201921973698.XU Active CN211005015U (en) | 2019-11-15 | 2019-11-15 | Breed pretreatment of water system that gives up |
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