CN212315845U - Mobile garbage transfer station leachate treatment device - Google Patents
Mobile garbage transfer station leachate treatment device Download PDFInfo
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- CN212315845U CN212315845U CN202020462971.9U CN202020462971U CN212315845U CN 212315845 U CN212315845 U CN 212315845U CN 202020462971 U CN202020462971 U CN 202020462971U CN 212315845 U CN212315845 U CN 212315845U
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Abstract
The utility model discloses a portable rubbish transfer station filtration liquid processing apparatus. Comprises an ozone air-flotation pretreatment unit consisting of an ozone air-flotation pretreatment device (2), a biochemical treatment unit consisting of a denitrification tank (14) and a nitrification tank (16), and an ozone air-flotation advanced treatment unit consisting of an ozone air-flotation advanced treatment device (21). The utility model discloses can reduce COD load and suspended solid by a wide margin, effectively replace the anaerobism link of traditional biochemical treatment technology, avoid the production of stench toxic gases such as methane, hydrogen sulfide when reducing biochemical treatment unit area. The ozone air floatation advanced treatment unit can generate various active substances with strong oxidizing property, and the persistent organic pollutants can be effectively removed. The utility model discloses an automatically controlled ozone air supporting control of head and the tail two-stage, discharge to reach standard can be stabilized to the play water, and compact structure, area are little, easily realize the automation, and the sled dress is convenient, is fit for directly placing and carries out filtration liquid in situ treatment in rubbish transfer station and garbage truck.
Description
Technical Field
The utility model relates to a refuse treatment device specifically is a portable rubbish transfer station filtration liquid processing apparatus.
Background
10% -25% of leachate can be generated in the compression process of the municipal domestic waste in the transfer station, the leachate has small yield, complex components and strong variability, and the living environment of surrounding residents can be seriously influenced if the leachate is not properly treated. The conventional landfill leachate treatment process comprises pretreatment, regulation, anaerobism, denitrification, nitrification and membrane treatment, wherein the anaerobic process has long retention time, so that the required reaction device has large volume, and simultaneously, a large amount of stink toxic gases such as methane, hydrogen sulfide and the like can be generated, and the process is not beneficial to the use of the process in the municipal refuse transfer station.
Disclosure of Invention
To the problem that above-mentioned prior art exists, the utility model provides a portable rubbish transfer station filtration liquid processing apparatus collects ozone air supporting preprocessing unit, biochemical treatment unit and the ozone air supporting advanced treatment unit of filtration liquid in same box. After the pretreatment unit degrades partial organic matters, the effluent directly enters the nitrification and denitrification treatment of the biochemical treatment unit, so that the anaerobic treatment link in the original leachate process is reduced, and the effluent can be stably discharged up to the standard through head-tail two-stage electric control ozone air flotation control.
In order to realize the aim, the mobile garbage transfer station percolate treatment device comprises an ozone air-flotation pretreatment unit consisting of an ozone air-flotation pretreatment device, a biochemical treatment unit consisting of a denitrification tank and a nitrification tank, and an ozone air-flotation advanced treatment unit consisting of an ozone air-flotation advanced treatment device.
Further, an ozone air-flotation pretreatment electric control electrode is arranged inside the ozone air-flotation pretreatment device, a dosing box is communicated with the outside of the ozone air-flotation pretreatment device, and a sludge discharge pipe is arranged below the ozone air-flotation pretreatment device.
Further, the ozone air-flotation pretreatment device is communicated with a denitrification tank in the biochemical treatment unit through a first sewage lifting pump, the denitrification tank is communicated with the bottom of the nitrification tank, and the nitrification tank realizes backflow with the denitrification tank through a backflow pump.
Further, a stirring device is arranged in the denitrification tank.
Further, an MBR membrane module is arranged inside the nitrification tank.
Further, an MBR membrane module in the nitrification tank is communicated with the ozone air floatation advanced treatment device through a second sewage lifting pump.
Furthermore, an ozone air-flotation advanced treatment electric control electrode is arranged in the ozone air-flotation advanced treatment device.
Further, the ozone required in the ozone air-flotation pretreatment device and the ozone air-flotation advanced treatment device is generated by an ozone generator communicated with the Roots blower and is provided by uniform aeration through a titanium aeration head, and the titanium aeration head is respectively arranged in the ozone air-flotation pretreatment device and the ozone air-flotation advanced treatment device.
Further, the dissolved oxygen required in the nitrification tank is generated by an ozone generator communicated with a Roots blower; and the Roots blower is communicated with an aeration device arranged in the nitrification tank through a gas flowmeter.
Compared with the prior art, the mobile garbage transfer station leachate treatment device has the advantages that the conventional garbage leachate treatment process is long, the occupied area is large and the like, the iron/aluminum hydroxyl complex generated by electrolysis in the ozone air floatation pretreatment unit is used as a catalyst to catalyze ozone, COD load and suspended matters are greatly reduced, the anaerobic link of the traditional biochemical treatment process is effectively replaced, the occupied area of the biochemical treatment unit is reduced, and meanwhile, the production of odor toxic gases such as methane, hydrogen sulfide and the like is avoided. In the ozone air-floatation advanced treatment unit, a dimensionally stable anode and a carbonaceous air cathode are utilized to catalyze ozone to generate a plurality of active substances with strong oxidizing property, so that the organic pollutants which are difficult to degrade are removed strongly. The device is controlled by the head and the tail two-stage electric control ozone air flotation, the discharged water can be stably discharged up to the standard, the structure is compact, the occupied area is small, the automation is easy to realize, the skid-mounted device is convenient to skid-mount, and the device is suitable for being directly placed in a garbage transfer station and a garbage truck to carry out the in-situ treatment of the percolate.
Drawings
Fig. 1 is a schematic view of the main structure of the present invention;
in the figure: 1. a box body; 2. an ozone air flotation pretreatment device; 3. a water inlet; 4. an electric control electrode is pretreated by ozone air flotation; 5. a titanium aeration head; 6. a sludge discharge pipe; 7. a dosing box; 8. an ozone air flotation pretreatment water outlet; 9. a first sewage lifting pump; 10. a direct current power supply; 11. an ozone generator; 12. a Roots blower; 13. a water inlet of the biochemical treatment unit; 14. a denitrification tank; 15. a stirring device; 16. a nitrification tank; 17. a reflux pump; 18. an MBR membrane module; 19. an aeration device; 20. a sewage lifting pump II; 21, an ozone air floatation advanced treatment device; 22. an electric control electrode for ozone air floatation depth treatment; 23. a water outlet pipe; 24. a gas flow meter.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in figure 1, the mobile garbage transfer station leachate treatment device comprises an ozone air-flotation pretreatment unit consisting of an ozone air-flotation pretreatment device 2, a biochemical treatment unit consisting of a denitrification tank 14 and a nitrification tank 16, and an ozone air-flotation advanced treatment unit consisting of an ozone air-flotation advanced treatment device 21.
The leachate in the ozone pretreatment unit finishes the processes of suspended matter removal, COD load reduction, biodegradability improvement, small amount of ammonia nitrogen removal and defoaming, and effectively replaces the anaerobic link of the traditional biochemical treatment process. In the biochemical treatment unit, the leachate treated by the nitrification treatment section, the denitrification treatment section and the MBR treatment section finishes the degradation of organic matters and the efficient removal of ammonia nitrogen and total phosphorus. In the ozone air floatation advanced treatment unit, the leachate completes the advanced removal of refractory organic matters and other toxic and harmful pollutants in the leachate, and the final treatment of the leachate of the transfer station is realized.
Leachate is sent into an ozone air-flotation pretreatment device 2 through a water inlet 3 to be subjected to pre-ozonation, generated sludge is discharged through a sludge discharge pipe 6, treated wastewater is sent into a denitrification tank 14 of a biochemical treatment unit through a sewage lifting pump 9 to be subjected to denitrification treatment, the bottom of the denitrification tank 14 is communicated with a nitrification tank 16, the denitrified wastewater automatically flows into the nitrification tank 16 to be subjected to nitrification treatment, the treated wastewater enters an ozone air-flotation advanced treatment device 21 through an MBR (membrane bioreactor) membrane module 18 under the lifting action of a vacuum pump 20, and the wastewater reaching the standard after the advanced treatment is discharged through a water outlet 23.
Further, an ozone air-flotation pretreatment electric control electrode 4 is arranged inside the ozone air-flotation pretreatment device 2, a dosing tank 7 is communicated outside the ozone air-flotation pretreatment device 2, and a sludge discharge pipe 6 is arranged below the ozone air-flotation pretreatment device 2.
Further, the ozone air-flotation pretreatment device 2 is communicated with a denitrification tank 14 in the biochemical treatment unit through a first sewage lifting pump 9, the denitrification tank 14 is communicated with the bottom of a nitrification tank 16, and the nitrification tank 16 is communicated with the denitrification tank 14 through a return pump 17 to realize return flow.
Further, a stirring device 15 is arranged inside the denitrification tank 14 and used for stirring the sewage in the denitrification tank 14.
Further, an MBR membrane module 18 is provided inside the nitrification tank 16, so that solid-liquid separation can be efficiently performed, and suspended substances in the wastewater can be filtered.
Further, an MBR membrane module 18 in the nitrification tank 16 is communicated with an ozone floatation advanced treatment device 21 through a second sewage lift pump 20.
Further, an ozone air-flotation advanced treatment electric control electrode 22 is arranged inside the ozone air-flotation advanced treatment device 21.
Further, the ozone required in the ozone air-flotation pretreatment device 2 and the ozone air-flotation advanced treatment device 21 is generated by an ozone generator 11 communicated with a Roots blower 12 and is provided by uniform aeration through a titanium aeration head 5, and the titanium aeration head 5 is respectively arranged in the ozone air-flotation pretreatment device 2 and the ozone air-flotation advanced treatment device 21. The ozone generator 11 is powered by a dc power supply 10.
Further, the dissolved oxygen required in the nitrification tank 16 is generated by an ozone generator 11 communicated with a Roots blower 12; the Roots blower 12 is communicated with an aeration device 19 arranged in the nitrification tank 16 through a gas flowmeter 24. The aeration quantity is adjusted through the flowmeter 24, so that the dosage of the Roots blower is reduced, and the occupied area is saved.
The ozone adding amount in the ozone air-flotation pretreatment device 2 is 0.5-1 mg/mgCOD, the ozone air-flotation pretreatment electric control electrode 4 is an iron/aluminum electrode, the ozone is catalyzed by using an iron/aluminum hydroxyl ligand generated by electric control as a catalyst, and the current density is controlled to be 5-15 mA/cm2The total residence time of the ozone air floatation pretreatment unit is 30-40 min, 0.5-1 g/L PAC and 3-5 mg/L PAM are added into the ozone air floatation pretreatment unit through a medicine adding box 7, the suspended matter and COD concentration are greatly reduced, the anaerobic link of the traditional biochemical treatment process is effectively replaced, the floor area of the biochemical treatment unit is reduced, and meanwhile, the generation of foul and toxic gases such as methane, hydrogen sulfide and the like is avoided.
The biochemical treatment unit has the advantages that the hydraulic retention time is 6-10 days, the sludge concentration is 20-40 g/L, the reflux ratio is 250-300%, the dissolved oxygen concentration of the denitrification tank 14 is less than 0.1mg/L, the dissolved oxygen concentration of the nitrification tank 16 is 1.5-2 mg/L, the MBR membrane module 18 adopts a flat plate membrane with high sludge concentration resistance and small volume, the biochemical treatment condition is strictly controlled in the operation process, and the effluent index is stabilized.
The ozone adding amount in the ozone air floatation advanced treatment device 21 is controlled to be 2-4 mg/mgCOD, the total retention time is controlled to be 30-40 min, and an ozone advanced treatment electric control electrode 23 is distributed, the electric control anode is a titanium plate ruthenium-iridium plating electrode, the electric control cathode is a carbonaceous air cathode, and the current density is controlled to be 10-20 mA/cm2And various active substances are generated through electric control, so that various pollutants such as refractory organic matters and the like are effectively removed.
All the equipment related to the ozone air-floatation pretreatment unit, the biochemical treatment unit and the ozone air-floatation advanced treatment unit are carried in the same box body 1 and can be arranged in a garbage truck for matching use. Compact structure, area are little, easily realize the automation, and the sled dress is convenient, is fit for directly placing in rubbish transfer station and garbage truck and carries out the normal position processing of filtration liquid.
It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (9)
1. A mobile garbage transfer station percolate treatment device, which is characterized in that,
comprises an ozone air-flotation pretreatment unit consisting of an ozone air-flotation pretreatment device (2), a biochemical treatment unit consisting of a denitrification tank (14) and a nitrification tank (16), and an ozone air-flotation advanced treatment unit consisting of an ozone air-flotation advanced treatment device (21).
2. The leachate treatment plant of a mobile garbage transfer station according to claim 1,
an ozone air-flotation pretreatment electric control electrode (4) is arranged inside the ozone air-flotation pretreatment device (2), a dosing box (7) is communicated outside the ozone air-flotation pretreatment device (2), and a sludge discharge pipe (6) is arranged below the ozone air-flotation pretreatment device (2).
3. The mobile garbage transfer station leachate treatment plant of claim 1 or 2,
the ozone air flotation pretreatment device (2) is communicated with a denitrification tank (14) in the biochemical treatment unit through a sewage lifting pump I (9), the denitrification tank (14) is communicated with the bottom of a nitrification tank (16), and the nitrification tank (16) is communicated with the denitrification tank (14) through a reflux pump (17) to realize reflux.
4. The mobile garbage transfer station leachate treatment plant of claim 3, wherein,
and a stirring device (15) is arranged in the denitrification tank (14).
5. The mobile garbage transfer station leachate treatment plant of claim 3, wherein,
an MBR membrane module (18) is arranged in the nitrification tank (16).
6. The mobile garbage transfer station leachate treatment plant of claim 5, wherein,
an MBR membrane module (18) in the nitrification tank (16) is communicated with an ozone air floatation advanced treatment device (21) through a second sewage lift pump (20).
7. The mobile garbage transfer station leachate treatment plant of claim 6, wherein,
an ozone air-floatation advanced treatment electric control electrode (22) is arranged in the ozone air-floatation advanced treatment device (21).
8. The leachate treatment plant of a mobile garbage transfer station according to claim 1,
ozone required in the ozone air-flotation pretreatment device (2) and the ozone air-flotation advanced treatment device (21) is generated by an ozone generator (11) communicated with a Roots blower (12) and is provided by uniform aeration through a titanium aeration head (5), and the titanium aeration head (5) is respectively arranged in the ozone air-flotation pretreatment device (2) and the ozone air-flotation advanced treatment device (21).
9. The mobile garbage transfer station leachate treatment plant of claim 3, wherein,
the dissolved oxygen required in the nitrification tank (16) is generated by an ozone generator (11) communicated with a Roots blower (12); the Roots blower (12) is communicated with an aeration device (19) arranged in the nitrification tank (16) through a gas flowmeter (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020462971.9U CN212315845U (en) | 2020-04-02 | 2020-04-02 | Mobile garbage transfer station leachate treatment device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020462971.9U CN212315845U (en) | 2020-04-02 | 2020-04-02 | Mobile garbage transfer station leachate treatment device |
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| CN212315845U true CN212315845U (en) | 2021-01-08 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111484192A (en) * | 2020-04-02 | 2020-08-04 | 江苏永冠给排水设备有限公司 | Mobile garbage transfer station leachate treatment device |
| CN115626747A (en) * | 2022-11-18 | 2023-01-20 | 北京科净源科技股份有限公司 | System and method for deeply treating leather wastewater |
-
2020
- 2020-04-02 CN CN202020462971.9U patent/CN212315845U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111484192A (en) * | 2020-04-02 | 2020-08-04 | 江苏永冠给排水设备有限公司 | Mobile garbage transfer station leachate treatment device |
| CN115626747A (en) * | 2022-11-18 | 2023-01-20 | 北京科净源科技股份有限公司 | System and method for deeply treating leather wastewater |
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