CN215403293U - System for get rid of kitchen garbage natural pond liquid - Google Patents
System for get rid of kitchen garbage natural pond liquid Download PDFInfo
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- CN215403293U CN215403293U CN202122206419.0U CN202122206419U CN215403293U CN 215403293 U CN215403293 U CN 215403293U CN 202122206419 U CN202122206419 U CN 202122206419U CN 215403293 U CN215403293 U CN 215403293U
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- 239000007788 liquid Substances 0.000 title claims abstract description 125
- 239000010813 municipal solid waste Substances 0.000 title description 2
- 238000000926 separation method Methods 0.000 claims abstract description 76
- 239000002002 slurry Substances 0.000 claims abstract description 71
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 45
- 238000005345 coagulation Methods 0.000 claims abstract description 30
- 230000015271 coagulation Effects 0.000 claims abstract description 30
- 238000005276 aerator Methods 0.000 claims abstract description 29
- 239000002699 waste material Substances 0.000 claims abstract description 15
- 239000010806 kitchen waste Substances 0.000 claims abstract description 14
- 239000013049 sediment Substances 0.000 claims abstract description 9
- 238000005192 partition Methods 0.000 claims abstract description 4
- 230000005540 biological transmission Effects 0.000 claims description 15
- 239000007787 solid Substances 0.000 claims description 11
- 238000001514 detection method Methods 0.000 claims description 9
- 239000011148 porous material Substances 0.000 claims description 8
- 238000007599 discharging Methods 0.000 claims description 3
- 229940037003 alum Drugs 0.000 abstract description 17
- 239000008394 flocculating agent Substances 0.000 abstract description 7
- 230000001112 coagulating effect Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 6
- 239000000725 suspension Substances 0.000 description 6
- 238000005273 aeration Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 3
- 239000000443 aerosol Substances 0.000 description 2
- 125000002091 cationic group Chemical group 0.000 description 2
- 150000001768 cations Chemical class 0.000 description 2
- 239000000084 colloidal system Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000010006 flight Effects 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 238000005189 flocculation Methods 0.000 description 2
- 230000016615 flocculation Effects 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000149 chemical water pollutant Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 238000005188 flotation Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910017053 inorganic salt Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000479 mixture part Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
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Abstract
A system for removing kitchen waste biogas slurry comprises a waste liquid treatment tank, wherein the waste liquid treatment tank is divided into a biogas slurry coagulation area, a mixed liquid separation area and a suspended matter discharge area by a partition plate; the biogas slurry coagulation zone is communicated with the mixed liquid separation zone, and the mixed liquid separation zone is communicated with the suspended matter discharge zone; the biogas slurry and the PAM flocculant flow into a biogas slurry coagulation area through a mixed liquid inlet; the mixed liquid separation zone comprises a tubular microporous aerator and a suspended matter discharge device; the mixed liquid separation zone is also provided with a sediment discharge port and a clear water discharge port; the suspended matter discharge area is provided with a suspended matter discharge port. This application is through setting up natural pond liquid coagulating zone for PAM flocculating agent and natural pond liquid intensive mixing have reduced the input of dose, the cost is reduced. More preferably, the tubular microporous aerator is arranged, so that all alum floc floats at the top of the mixed liquid separation zone or sinks at the bottom of the mixed liquid separation zone under the condition of no dosage of the added alum floc, and then the alum floc is discharged out of the waste liquid treatment tank, thereby efficiently removing suspended matters in the biogas slurry.
Description
Technical Field
The utility model relates to the technical field of wastewater treatment, in particular to a system for removing kitchen waste biogas slurry.
Background
At present, the method for removing suspended matters in the landfill leachate is mature, but the oily kitchen waste biogas slurry is still relatively weak. Especially in a full-pulp anaerobic fermentation system, the suspended matters in anaerobic effluent can reach 20000mg/L, and the conventional treatment is that a large amount of inorganic salt is added and then high-pressure plate frame treatment is carried out, so that the sludge production is large and the economical efficiency is poor; or the organic flocculant is used for desliming in a centrifuge, but the removal effect is not ideal. Further analyzing the devices developed in the current market, the whole set of equipment has long flow and large occupied area, and the economy is slightly poor, or the integrated equipment can not be highly matched with the floating and sinking characteristics of the flocculation mixture part of the anaerobic biogas slurry.
SUMMERY OF THE UTILITY MODEL
Aiming at the problems brought forward by the background technology, the utility model aims to provide a system for removing kitchen waste biogas slurry, and solves the problem that the biogas slurry removing effect is low in the prior art.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a system for removing kitchen waste biogas slurry comprises a waste liquid treatment tank, wherein the waste liquid treatment tank is divided into a biogas slurry coagulation area, a mixed liquid separation area and a suspended matter discharge area by a partition plate; the biogas slurry coagulation zone is communicated with the mixed liquid separation zone, and the top of the mixed liquid separation zone is communicated with the suspended matter discharge zone; the biogas slurry coagulation area is provided with a mixed liquid inlet, biogas slurry and PAM flocculant flow into the biogas slurry coagulation area through the mixed liquid inlet, and the biogas slurry and the PAM flocculant are mixed and react in the biogas slurry coagulation area to form mixed liquid; the mixed liquid separation zone comprises a tubular microporous aerator and a suspended matter discharge device; the tubular microporous aerator is used for separating the mixed liquid in the mixed liquid separation zone; the suspended matter discharge device is used for discharging the suspended matter at the top of the mixed liquid separation zone into the suspended matter discharge zone; the mixed liquid separation zone is also provided with a sediment discharge port and a clear water discharge port, the sediment discharge port is arranged at the bottom of the mixed liquid separation zone, and the clear water discharge port is arranged in the middle of the mixed liquid separation zone; the suspended matter discharge area is provided with a suspended matter discharge port.
Preferably, the biogas slurry coagulation area is also provided with a mixing stirrer.
Preferably, the suspended matter discharge device comprises a belt transmission structure, and the belt transmission structure is arranged above the mixed liquid separation zone and the suspended matter discharge zone; a plurality of uniformly spaced scrapers are arranged outside the belt transmission structure; the belt transmission structure can drive the scraper blade to be in the top removal in mixed liquid separation zone with the suspended solid discharge zone makes the scraper blade can promote the suspended solid of mixed liquid separation zone to in the suspended solid discharge zone.
Preferably, the mixed liquid separation zone is further provided with a turbidity detection control device, and the turbidity detection control device comprises a turbidity detector and a control water valve; the turbidity detector is used for detecting the turbidity of the clear water in the mixed liquid separation zone; the control water valve is used for controlling the opening or closing of the clean water outlet; the control water valve is connected with the turbidity detector.
Preferably, the air-conditioning system further comprises an air compressor air supply device, and the air compressor air supply device is connected with the tubular microporous aerator.
Preferably, the tubular microporous aerator adopts a self-closing pore structure.
Preferably, the pore size of the tubular microporous aerator is equal to or less than 2 mm.
Compared with the prior art, the utility model has the following beneficial effects:
this application is through setting up natural pond liquid coagulating zone for PAM flocculating agent and natural pond liquid intensive mixing have reduced the input of dose, the cost is reduced. More preferably, the tubular microporous aerator is arranged, so that all alum floc floats at the top of the mixed liquid separation zone or sinks at the bottom of the mixed liquid separation zone under the condition of no dosage of the added alum floc, and then the alum floc is discharged out of the waste liquid treatment tank, thereby efficiently removing suspended matters in the biogas slurry.
Drawings
The drawings are further illustrative of the utility model and the content of the drawings does not constitute any limitation of the utility model.
FIG. 1 is a front view of a waste liquid treatment tank according to an embodiment of the present invention;
FIG. 2 is a side view of a waste treatment tank according to an embodiment of the present invention;
FIG. 3 is an enlarged partial view of the dashed circle A in FIG. 2;
FIG. 4 is a schematic diagram of the construction of a tubular microporous aerator according to one embodiment of the utility model;
the device comprises a waste liquid treatment tank 100, a biogas slurry coagulation zone 10, a mixed liquid inlet 11, a mixing stirrer 12, a mixed liquid separation zone 20, a tubular microporous aerator 21, a suspended matter discharge device 22, a belt transmission structure 221, a scraper 222, a clear water discharge port 23, a sediment discharge port 24, a turbidity detector 25, a suspended matter discharge zone 30 and a suspended matter discharge port 31.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to a number of technical features being indicated. Thus, features defined as "first", "second" and "third" may explicitly or implicitly include one or more of the features.
In a preferred embodiment of the present application, as shown in fig. 1 to 4, a system for removing kitchen waste biogas slurry comprises a waste liquid treatment tank 100, wherein the waste liquid treatment tank 100 is divided into a biogas slurry coagulation zone 10, a mixed liquid separation zone 20 and a suspended matter discharge zone 30 by partition plates; the biogas slurry coagulation zone 10 is communicated with the mixed liquid separation zone 20, and the top of the mixed liquid separation zone 20 is communicated with the suspended matter discharge zone 30; the biogas slurry coagulation area 10 is provided with a mixed liquid inlet 11, biogas slurry and PAM flocculating agent flow into the biogas slurry coagulation area 10 through the mixed liquid inlet 11, and the biogas slurry and the PAM flocculating agent are mixed and react in the biogas slurry coagulation area 10 to form mixed liquid; the mixed liquid separation zone 20 comprises a tubular microporous aerator 21 and a suspended matter discharge device 22; the tubular micro-porous aerator 21 is used to separate the mixed liquor in the mixed liquor separation zone 20; said suspension removal means 22 for removing suspension from the top of said mixed liquor separation zone 20 into said suspension removal zone 30; the mixed liquid separation zone 20 is further provided with a sediment outlet 24 and a clear water outlet 23, the sediment outlet 24 is arranged at the bottom of the mixed liquid separation zone 20, and the clear water outlet 23 is arranged at the middle part of the mixed liquid separation zone 20; the aerosol discharge zone 30 is provided with an aerosol discharge opening 31.
In this embodiment, the PAM flocculant and the kitchen waste biogas slurry flow into the biogas slurry coagulation zone 10 through the mixed liquid inlet 11, and the PAM flocculant and the biogas slurry are mixed and reacted in the biogas slurry coagulation zone 10 to promote solid-liquid separation of the biogas slurry, so that suspended matters in the biogas slurry form alum flocs. It is worth noting that in the present embodiment, the PAM flocculant is preferably cationic PAM with an ionic degree of 60, since ionic degree 60 is the most excellent flocculant among cationic PAM flocculants; the cation PAM is selected because the biogas slurry contains a large amount of negative charge colloids, and the cation PAM can neutralize the negative charges of the colloids in the biogas slurry to play a role in adsorbing and bridging, so that the solid-liquid separation of the biogas slurry is more obvious. Further, the concentration range of the PAM flocculant flowing into the biogas slurry coagulation zone 10 needs to be controlled within 2-2.5%, and the ratio of the biogas slurry and the PAM flocculant flowing into the biogas slurry coagulation zone 10 is preferably 6-8: 1. When the concentration of the PAM flocculant is higher than 2.5 per mill, the PAM flocculant is not easy to dissolve, and a flocculant floating block is generated in the biogas slurry coagulation zone 10, so that the solid-liquid separation effect is not obvious. When the concentration of the PAM flocculant is lower than 2 per mill, a large amount of water is needed to mix the PAM flocculant and the biogas slurry, so that the cost is increased. The ratio of the biogas slurry to the PAM flocculant flowing into the biogas slurry coagulation zone 10 is controlled within the range of 6-8:1, so that the biogas slurry has high viscosity and poor biodegradability, and when the input ratio is less than the ratio range, the biogas slurry cannot play a flocculation effect, so that the solid-liquid separation effect is poor; when the ratio is higher than the range of the ratio, the mixed liquid has poor fluidity and is easy to form into a layer paste, and the biogas slurry treatment efficiency is reduced.
When the mixed liquid fills the biogas slurry coagulation zone 10, the mixed liquid overflows from the biogas slurry coagulation zone 10 and flows into the mixed liquid separation zone 20. After the mixed liquid flows into the mixed liquid separation zone 20, under the action of a large number of micro bubbles generated by the aeration pipe, large-particle alum flocs and small alum flocs in the mixed liquid are separated, and the large-particle alum flocs are precipitated in the mixed liquid separation zone 20 under the action of gravity and then discharged out of the mixed liquid separation zone 20 through the precipitate discharge port 24; the fine alum flocs float on the top surface of the mixed liquid under the action of the air bubbles, and then flow into the suspended matter discharge area 30 under the action of the suspended matter discharge device 22, and are discharged out of the waste liquid treatment tank 100 from the suspended matter discharge area 30. Since alum blossom in the biogas slurry is precipitated at the bottom of the mixed liquid separation zone 20 or floats on the top of the mixed liquid separation zone 20, and a clear water zone is formed in the middle of the mixed liquid separation zone 20, an air flotation zone is formed in the top of the mixed liquid separation zone 20, and a clear water zone and a sediment zone at the bottom are formed in the middle of the mixed liquid separation zone. This application is through setting up natural pond liquid coagulating zone 10 for PAM flocculating agent with natural pond liquid intensive mixing has reduced the input of dose, the cost is reduced. More preferably, the tubular microporous aerator 21 is disposed in the mixed liquid separation zone 20, so that all alum flocs float at the top of the mixed liquid separation zone 20 or sink at the bottom of the mixed liquid separation zone 20 without the need of adding an amount of medicine, and then are discharged from the waste liquid treatment tank 100, thereby efficiently removing suspended matters in the biogas slurry.
Preferably, the biogas slurry coagulation zone 10 is further provided with a mixing stirrer 12. Through the sufficient mixing of the natural pond liquid and PAM flocculating agent in the coagulating zone 10 of natural pond liquid is thoughtlessly distinguished to mixing agitator 12 for natural pond liquid solid-liquid separation guarantees to let the suspended particle in the natural pond liquid all turn into alum blossom, thereby guarantees that this system can get rid of the suspended solid in the natural pond liquid effectively.
Specifically, the suspended matter discharge device 22 includes a belt transmission structure 221, and the belt transmission structure 221 is disposed above the mixed liquid separation zone 20 and the suspended matter discharge zone 30; a plurality of scrapers 222 with uniform intervals are arranged outside the belt transmission structure 221; the belt drive 221 can drive the flights 222 to move above the mixed liquor separation zone 20 and the suspension discharge zone 30 so that the flights 222 can push the suspension from the mixed liquor separation zone 20 into the suspension discharge zone 30. In this embodiment, the belt transmission structure 221 is located the mixed liquid separation zone 20 and the top of suspended solid discharge area 30, and the rotation direction of the belt transmission structure 221 is anticlockwise outward, that is, the scraper 222 at the bottom of the belt transmission structure 221 moves from left to right in the mixed liquid separation zone 20 and the top of the suspended solid discharge area 30, so as to float on the fine alum blossom in the mixed liquid separation zone 20 and push to the suspended solid discharge area 30, thereby achieving the effect of removing the fine alum blossom of the biogas slurry, and the suspended solid discharge device 22 has a simple structure, and reduces the cost of system construction in the application.
Specifically, the mixed liquid separation zone 20 is further provided with a turbidity detection control device, and the turbidity detection control device comprises a turbidity detector 25 and a control water valve; the turbidity detector 25 is used for detecting the turbidity of the clear water in the mixed liquid separation zone 20; the control water valve is used for controlling the opening or closing of the clean water outlet 23; the control water valve is connected with the turbidity detector 25. In this embodiment, the turbidity detection control device is disposed in the clear water region of mixed liquid separation zone 20 for more accurately detecting the turbidity of the clear water in mixed liquid separation zone 20. The turbidity detection control device continuously detects the turbidity of the clear water in the mixed liquid separation zone 20 through the turbidity detector 25. When the turbidity of the clear water area detected by the turbidity detector 25 is lower than the preset value of the turbidity detector 25, the turbidity of the clear water representing the clear water area meets the discharge standard, so the clear water discharge port 23 is in an open state, and the clear water is discharged out of the mixed liquid separation zone 20. When the turbidity detector 25 detects that the turbidity of the clear water area is higher than a preset value, the turbidity of the clear water does not meet the discharge standard, the turbidity detector 25 outputs detection information to the control water valve, and the control water valve closes the clear water discharge port 23 after receiving feedback to stop discharging the clear water. At this time, after the aerator is required to separate the suspended matters in the mixed liquid into liquid, the control water valve opens the clean water outlet 23 again when the turbidity of the clean water is against the preset value. Consequently, this application passes through turbidity detects controlling means, the drainage in the middle part of accurate control to avoid the clear water discharge of turbidity low, the polluted environment. It is to be noted that the turbidity detecting instrument and the control water valve are commercially available functional components.
Preferably, the device further comprises an air compressor air supply device, wherein the air compressor air supply device is connected with the tubular microporous aerator 21. The system also supplies air to the tubular microporous aerator 21 through the air supply device of the air compressor, and ensures that the aerator can continuously generate bubbles, thereby ensuring that alum blossom in the mixed liquid can be discharged from the liquid and ensuring that the system can effectively remove suspended matters. It is worth to say that, the air compressor machine air feeder is the functional components and parts of purchasing on the market.
Further, the tubular microporous aerator 21 adopts a self-closing pore structure. The tubular microporous aerator 21 adopts a self-closing pore structure because micropores on the aerator are not easy to block, the pore diameter of the bubbles is small, the contact reaction area of the bubbles and the mixed liquid is increased, and the precious gas efficiency is improved. And the aerator can perform annular aeration, can perform aeration in all directions without dead angles, and is easy to promote layering.
Further, the pore size of the tubular microporous aerator 21 is equal to or less than 2 mm. When the aperture of the tubular microporous aerator 21 is equal to or smaller than 2mm, the tubular microporous aerator 21 can form 0.2-2mm bubbles, so that the contact area of the bubbles and the mixed liquid is ensured, the aeration efficiency is improved, and suspended matters in the biogas slurry are removed more efficiently.
The technical principle of the present invention is described above in connection with specific embodiments. The description is made for the purpose of illustrating the principles of the utility model and should not be construed in any way as limiting the scope of the utility model. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without inventive effort, which would fall within the scope of the present invention.
Claims (7)
1. A system for removing kitchen waste biogas slurry is characterized by comprising a waste liquid treatment tank, wherein the waste liquid treatment tank is divided into a biogas slurry coagulation area, a mixed liquid separation area and a suspended matter discharge area by a partition plate;
the biogas slurry coagulation zone is communicated with the mixed liquid separation zone, and the top of the mixed liquid separation zone is communicated with the suspended matter discharge zone;
the biogas slurry coagulation area is provided with a mixed liquid inlet, biogas slurry and PAM flocculant flow into the biogas slurry coagulation area through the mixed liquid inlet, and the biogas slurry and the PAM flocculant are mixed and react in the biogas slurry coagulation area to form mixed liquid;
the mixed liquid separation zone comprises a tubular microporous aerator and a suspended matter discharge device;
the tubular microporous aerator is used for separating the mixed liquid in the mixed liquid separation zone;
the suspended matter discharge device is used for discharging the suspended matter at the top of the mixed liquid separation zone into the suspended matter discharge zone;
the mixed liquid separation zone is also provided with a sediment discharge port and a clear water discharge port, the sediment discharge port is arranged at the bottom of the mixed liquid separation zone, and the clear water discharge port is arranged in the middle of the mixed liquid separation zone;
the suspended matter discharge area is provided with a suspended matter discharge port.
2. The system for removing kitchen waste biogas slurry as claimed in claim 1, wherein the biogas slurry coagulation zone is further provided with a mixing agitator.
3. The system for removing kitchen waste biogas slurry as recited in claim 1, wherein the suspended matter discharge device comprises a belt transmission structure, and the belt transmission structure is arranged above the mixed liquid separation zone and the suspended matter discharge zone;
a plurality of uniformly spaced scrapers are arranged outside the belt transmission structure;
the belt transmission structure can drive the scraper blade to be in the top removal in mixed liquid separation zone with the suspended solid discharge zone makes the scraper blade can promote the suspended solid of mixed liquid separation zone to in the suspended solid discharge zone.
4. The system for removing kitchen waste biogas slurry as claimed in claim 1, wherein the mixed liquid separation zone is further provided with a turbidity detection control device, and the turbidity detection control device comprises a turbidity detector and a control water valve;
the turbidity detector is used for detecting the turbidity of the clear water in the mixed liquid separation zone;
the control water valve is used for controlling the opening or closing of the clean water outlet;
the control water valve is connected with the turbidity detector.
5. The system for removing kitchen waste biogas slurry as claimed in claim 1, further comprising an air compressor air supply device, wherein the air compressor air supply device is connected with the tubular microporous aerator.
6. The system for removing kitchen waste biogas slurry as recited in claim 1, wherein the tubular microporous aerator is of a self-closing pore structure.
7. The system for removing biogas slurry from kitchen waste according to claim 1, wherein the pore size of the tubular microporous aerator is equal to or less than 2 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122206419.0U CN215403293U (en) | 2021-09-13 | 2021-09-13 | System for get rid of kitchen garbage natural pond liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122206419.0U CN215403293U (en) | 2021-09-13 | 2021-09-13 | System for get rid of kitchen garbage natural pond liquid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215403293U true CN215403293U (en) | 2022-01-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122206419.0U Active CN215403293U (en) | 2021-09-13 | 2021-09-13 | System for get rid of kitchen garbage natural pond liquid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215403293U (en) |
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2021
- 2021-09-13 CN CN202122206419.0U patent/CN215403293U/en active Active
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