CN113955876A - Landfill leachate treatment facility - Google Patents
Landfill leachate treatment facility Download PDFInfo
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- CN113955876A CN113955876A CN202111265595.XA CN202111265595A CN113955876A CN 113955876 A CN113955876 A CN 113955876A CN 202111265595 A CN202111265595 A CN 202111265595A CN 113955876 A CN113955876 A CN 113955876A
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- landfill leachate
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- 239000000149 chemical water pollutant Substances 0.000 title claims abstract description 26
- 239000002351 wastewater Substances 0.000 claims abstract description 97
- 238000006243 chemical reaction Methods 0.000 claims abstract description 30
- 238000005189 flocculation Methods 0.000 claims abstract description 25
- 230000016615 flocculation Effects 0.000 claims abstract description 25
- 150000002505 iron Chemical class 0.000 claims abstract description 16
- 239000002253 acid Substances 0.000 claims abstract description 10
- 230000002378 acidificating effect Effects 0.000 claims abstract description 6
- 238000004065 wastewater treatment Methods 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 40
- 238000005273 aeration Methods 0.000 claims description 23
- 238000001914 filtration Methods 0.000 claims description 23
- 239000010865 sewage Substances 0.000 claims description 23
- 238000003756 stirring Methods 0.000 claims description 11
- 230000003014 reinforcing effect Effects 0.000 claims description 8
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 claims description 7
- 150000003839 salts Chemical class 0.000 claims description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 239000000945 filler Substances 0.000 claims description 6
- 238000004062 sedimentation Methods 0.000 claims description 6
- 239000010802 sludge Substances 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- 238000004090 dissolution Methods 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000005192 partition Methods 0.000 abstract description 59
- 239000008394 flocculating agent Substances 0.000 abstract description 4
- 230000007935 neutral effect Effects 0.000 abstract description 4
- 230000002349 favourable effect Effects 0.000 abstract description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 238000010979 pH adjustment Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 239000006228 supernatant Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 239000010791 domestic waste Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 229920002401 polyacrylamide Polymers 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- CKUAXEQHGKSLHN-UHFFFAOYSA-N [C].[N] Chemical compound [C].[N] CKUAXEQHGKSLHN-UHFFFAOYSA-N 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 210000005056 cell body Anatomy 0.000 description 1
- 238000012668 chain scission Methods 0.000 description 1
- 230000001112 coagulating effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- RUTXIHLAWFEWGM-UHFFFAOYSA-H iron(3+) sulfate Chemical compound [Fe+3].[Fe+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O RUTXIHLAWFEWGM-UHFFFAOYSA-H 0.000 description 1
- 229910000360 iron(III) sulfate Inorganic materials 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5209—Regulation methods for flocculation or precipitation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/58—Treatment of water, waste water, or sewage by removing specified dissolved compounds
- C02F1/62—Heavy metal compounds
- C02F1/64—Heavy metal compounds of iron or manganese
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The invention relates to the technical field of wastewater treatment, in particular to garbage leachate treatment equipment which comprises a main tower, wherein the main tower adopts a barrel body structure, the barrel body is divided into a plurality of areas by utilizing a stand column, a first partition plate, a second partition plate, a third partition plate, a fourth partition plate and a fifth partition plate, and a wastewater inlet pipe, an acid adjusting area, an iron salt dissolving area, a Fenton reaction area, a pH adjusting area, a flocculation area and a wastewater outlet pipe are sequentially communicated along the treatment direction of wastewater so as to facilitate the treatment of the wastewater in each area; when the device is used, wastewater enters an acidic adjusting zone along a wastewater inlet pipe to adjust the pH value of the wastewater to 2-4, then enters an iron salt dissolving zone to be dissolved by adding iron salt, and then enters a Fenton reaction zone to be added with H2O2And a Fenton reaction is carried out, then the wastewater enters a pH adjusting region to adjust the pH to be neutral, enters a flocculation region, is added with a flocculating agent, and then is discharged from a wastewater outlet pipe; the landfill leachate treatment equipment is convenient to carry and transport, and is more favorable for emergency treatment and temporary treatment of landfill leachate.
Description
Technical Field
The invention relates to the technical field of wastewater treatment, in particular to garbage leachate treatment equipment.
Background
Current waste water treatment equipment when handling the high concentration waste water of domestic waste filtration liquid class, adopts to concentrate to collect again and handles by great sewage treatment plant most, and sewage treatment plant's treatment facility is mostly the cell body, is difficult to realize transportation and emergency treatment.
Disclosure of Invention
In order to overcome the defects and shortcomings in the prior art, the invention aims to provide a landfill leachate treatment device.
The purpose of the invention is realized by the following technical scheme: a garbage leachate treatment device comprises a main tower, wherein the main tower comprises a barrel body, and a stand column, a first partition plate, a second partition plate, a third partition plate, a fourth partition plate and a fifth partition plate which are all arranged in the barrel body, the stand column is fixedly connected with the bottom of the barrel body, the first partition plate, the second partition plate, the third partition plate, the fourth partition plate and the fifth partition plate are sequentially distributed between the stand column and the barrel body, an acid adjusting area, an iron salt dissolving area, a fenton reaction area, a pH adjusting area and a flocculation area are respectively formed between the first partition plate and the second partition plate, between the second partition plate and the third partition plate, between the third partition plate and the fourth partition plate, between the fourth partition plate and the fifth partition plate, the barrel body is provided with a wastewater inlet pipe and a wastewater outlet pipe, through holes are respectively formed in the second partition plate, the third partition plate, the fourth partition plate and the fifth partition plate, the wastewater inlet pipe, the acidic adjusting area, the ferric salt dissolving area, the Fenton reaction area, the pH adjusting back area, the flocculation area and the wastewater outlet pipe are sequentially communicated along the treatment direction of wastewater.
Preferably, the main tower further comprises a first aeration pipe and a second aeration pipe which both penetrate through the barrel body, an aeration port of the first aeration pipe extends into the bottom of the acidity adjusting area, and an aeration port of the second aeration pipe extends into the bottom of the pH adjusting area.
Preferably, the main tower still including all with first mixer, second mixer and the third mixer that the staving is connected, first mixer is used for stirring the waste water in molysite dissolving zone, the second mixer is used for stirring the waste water in fenton reaction zone, the third mixer is used for stirring the waste water in flocculation district.
Preferably, the barrel body is an iron barrel, and the upright post is a steel pipe column; a first reinforcing rib is sleeved on the outer wall of the barrel body; the outer wall coating of staving has the anticorrosive coating, the inner wall in molysite dissolving zone and the inner wall in fenton reaction zone all adhere to and have two three oily anticorrosion structures of cloth.
Preferably, the barrel body is further provided with a first sewage discharge pipe communicated with the acidic adjusting area, a second sewage discharge pipe communicated with the ferric salt dissolving area, a third sewage discharge pipe communicated with the Fenton reaction area, a fourth sewage discharge pipe communicated with the pH adjusting back area and a fifth sewage discharge pipe communicated with the flocculation area.
Preferably, the landfill leachate treatment facility also includes with the settling tower of waste water outlet pipe intercommunication.
Preferably, the settling tower includes the casing, holds the filter equipment who locates the casing, stretches into the input water pipe in the casing and link up the output water pipe of casing, the play water end of input water pipe runs through one side that filter equipment to filter equipment are close to the casing bottom, the end of intaking of output water pipe sets up in one side that filter equipment is close to the casing top, waste water outlet pipe, input water pipe, filter equipment and output water pipe communicate in proper order along the treatment direction of waste water.
Preferably, the filter device includes with the support piece that the inner wall of casing is connected, support the grid plate that leans on in support piece and set up the pipe chute filler in the top of grid plate, input water pipe, grid plate, pipe chute filler and output water pipe communicate in proper order along the treatment direction of waste water.
Preferably, the settling tower is further provided with an overflow tooth groove body arranged on the shell, the overflow tooth groove body is arranged on one side of the filtering device close to the top of the shell, and the filtering device, the overflow tooth groove body and the output water pipe are sequentially communicated along the treatment direction of the wastewater.
Preferably, the bottom of the shell is provided with a sixth sewage discharge pipe for discharging settled sludge, and the outer wall of the shell is sleeved with a second reinforcing rib.
The invention has the beneficial effects that: the main tower of the garbage leachate treatment equipment adopts a barrel body structure, the barrel body is divided into an acid adjusting area, an iron salt dissolving area, a Fenton reaction area, a pH readjusting area and a flocculation area by using the upright column, the first partition plate, the second partition plate, the third partition plate, the fourth partition plate and the fifth partition plate, and a wastewater inlet pipe, the acid adjusting area, the iron salt dissolving area, the Fenton reaction area, the pH readjusting area, the flocculation area and a wastewater outlet pipe are sequentially communicated along the treatment direction of wastewater so as to facilitate the treatment of the wastewater in each area; when in use, the wastewater enters an acid adjusting zone along a wastewater inlet pipe to adjust the pH value of the wastewater to 2-4, then enters an iron salt dissolving zone to add iron salt to be dissolved in the wastewater, and then enters the wastewaterFeeding H into Fenton reaction zone2O2And the wastewater are subjected to Fenton advanced oxidation reaction, then the wastewater enters a pH adjusting region to adjust the pH value of the wastewater to be neutral, then enters a flocculation region, is added with a flocculating agent to be mixed with the wastewater, then the wastewater is discharged from a wastewater outlet pipe, and the quality of the wastewater can be improved after sedimentation and separation; the landfill leachate treatment equipment is convenient to carry and transport, and is more favorable for emergency treatment and temporary treatment of landfill leachate.
Drawings
FIG. 1 is a schematic flow diagram of the present invention;
FIG. 2 is a schematic structural view of the main column of the present invention;
FIG. 3 is a top view of the main tower of the present invention;
FIG. 4 is a schematic structural view of a settling tower according to the present invention;
figure 5 is a top view of a settling tower according to the present invention.
The reference signs are: 1. a barrel body; 2. a column; 3. a first separator; 4. a second separator; 5. a third partition plate; 6. a fourth separator; 7. a fifth partition plate; 8. an acidity conditioning zone; 9. a ferric salt dissolving zone; 10. a Fenton reaction zone; 11. a pH adjusting region; 12. a flocculation zone; 13. a wastewater inlet pipe; 14. a waste water outlet pipe; 15. a first aeration pipe; 16. a second aeration pipe; 17. a first mixer; 18. a second mixer; 19. a third stirrer; 20. a first reinforcing rib; 21. a first drain pipe; 22. a second sewage draining pipe; 23. a third blow-off pipe; 24. a fourth blow-off pipe; 25. a fifth sewage draining pipe; 26. a housing; 27. an input water pipe; 28. an output water pipe; 29. filling the inclined tube; 30. an overflow tooth trough body; 31. a sixth sewage draining pipe; 32. a second reinforcing rib; 33. a biological filter tower.
Detailed Description
For the understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention.
As shown in fig. 1-5, a landfill leachate treatment device comprises a main tower, the main tower comprises a barrel body 1, and a column 2, a first partition plate 3, a second partition plate 4, a third partition plate 5, a fourth partition plate 6 and a fifth partition plate 7 which are all accommodated in the barrel body 1, the column 2 is fixedly connected with the bottom of the barrel body 1, the first partition plate 3, the second partition plate 4, the third partition plate 5, the fourth partition plate 6 and the fifth partition plate 7 are sequentially distributed between the column 2 and the barrel body 1, an acid adjusting area 8, an iron salt dissolving area 9, a fenton reaction area 10, a pH adjusting area 11 and a flocculation area 12 are respectively formed between the first partition plate 3 and the second partition plate 4, between the second partition plate 4 and the third partition plate 5, between the third partition plate 5 and the fourth partition plate 6, between the fourth partition plate 6 and the fifth partition plate 7, and between the fifth partition plate 7 and the first partition plate 3, the barrel body 1 is provided with a wastewater inlet pipe 13 and a wastewater outlet pipe 14, the through-holes have all been seted up to second baffle 4, third baffle 5, fourth baffle 6 and fifth baffle 7, waste water inlet tube 13, acidity regulation district 8, molysite dissolve district 9, fenton reaction zone 10, pH back-off district 11, flocculation district 12 and waste water outlet pipe 14 communicate in proper order along the direction of treatment of waste water.
The garbage leachate treatment equipment is characterized in that a main tower adopts a barrel body 1 structure, the barrel body 1 is divided into an acid adjusting area 8, an iron salt dissolving area 9, a Fenton reaction area 10, a pH adjusting area 11 and a flocculation area 12 by utilizing a stand column 2, a first partition plate 3, a second partition plate 4, a third partition plate 5, a fourth partition plate 6 and a fifth partition plate 7, and a wastewater inlet pipe 13, the acid adjusting area 8, the iron salt dissolving area 9, the Fenton reaction area 10, the pH adjusting area 11, the flocculation area 12 and a wastewater outlet pipe 14 are sequentially communicated along the treatment direction of wastewater so as to facilitate the treatment of the wastewater in each area; when the device is used, wastewater enters an acidic adjusting zone 8 along a wastewater inlet pipe 13 to adjust the pH value of the wastewater to 2-4, then enters an iron salt dissolving zone 9 to add iron salt to be dissolved in the wastewater, and then enters a Fenton reaction zone 10 to add H2O2And the wastewater are subjected to Fenton advanced oxidation reaction, then the wastewater enters a pH adjusting region 11 to adjust the pH value of the wastewater to be neutral, then enters a flocculation region 12, is added with a flocculating agent to be mixed with the wastewater, then is discharged from a wastewater outlet pipe 14, and is subjected to sedimentation separation to improve the quality of the wastewater; the landfill leachate treatment equipment is convenient to carry and transport, and is more favorable for emergency treatment and temporary treatment of landfill leachate. Wherein the pH value of the wastewater is adjusted to 2-4 by adding sulfuric acid in the acidic adjusting zone 8, the subsequent Fenton reaction is prepared by adding ferric sulfate in the ferric salt dissolving zone 9, and H is added in the Fenton reaction zone 102O2And the wastewater are subjected to Fenton advanced oxidation reaction to remove the refractory organic pollutants, and the reaction mechanism is as follows:
H2O2+Fe2+→Fe3++HO-+HO·
RH+HO·→R·+H2O
R·+Fe3+→Fe2++ products
H2O2+HO·→HO2·+H2O
Fe2++HO·→Fe3++HO-
Fe3++H2O2→Fe2++H++HO2·
Fe3++HO2·→Fe2++H++O2；
The pH adjustment zone 11 is adjusted to neutral pH by adding base to remove excess H2O2The flocculation zone 12 provides a coagulating sedimentation effect by adding Polyacrylamide (PAM).
In this embodiment, the main tower further includes a first aeration pipe 15 and a second aeration pipe 16 both penetrating through the barrel 1, an aeration port of the first aeration pipe 15 extends into the bottom of the acidity adjusting zone 8, and an aeration port of the second aeration pipe 16 extends into the bottom of the pH adjustment zone 11.
By adopting the technical scheme, the first aeration pipe 15 is adopted to carry out aeration treatment on the wastewater in the acid adjusting area 8, so that the mixing of sulfuric acid and the wastewater is promoted; the wastewater in the pH adjustment back region 11 is aerated by the second aeration pipe 16 to promote the alkali to be mixed with the wastewater to react the excessive H2O2And is also beneficial to pH adjustment.
In this embodiment, the main tower further comprises a first stirrer 17, a second stirrer 18 and a third stirrer 19 which are connected to the barrel 1, wherein the first stirrer 17 is used for stirring the wastewater in the iron salt dissolution zone 9, the second stirrer 18 is used for stirring the wastewater in the fenton reaction zone 10, and the third stirrer 19 is used for stirring the wastewater in the flocculation zone 12.
By adopting the technical scheme, the wastewater in the ferric salt dissolving zone 9 is stirred by adopting the first stirrer 17 to promote the ferric salt to be dissolved in the wastewater; stirring the wastewater in the Fenton reaction zone 10 by using a second stirrer 18 to promote the dissolution of H2O2 in the wastewater and accelerate the Fenton reaction; and stirring the wastewater in the flocculation area 12 by using a third stirrer 19 to promote uniform mixing of the flocculating agent and the wastewater.
In this embodiment, the barrel body 1 is an iron barrel, and the upright post 2 is a steel pipe column; the outer wall of the barrel body 1 is sleeved with a first reinforcing rib 20.
By adopting the technical scheme, the enough strength of the barrel body 1 is ensured to ensure the operation of the main tower. Further, the outer wall coating of staving 1 has the anticorrosive coating, the inner wall in molysite dissolving zone 9 and the inner wall in fenton reaction zone 10 all adhere to there is three oily anticorrosion structures of two cloth to improve the anticorrosive nature of this main tower.
In this embodiment, the barrel body 1 is further provided with a first sewage discharge pipe 21 communicated with the acidity adjusting zone 8, a second sewage discharge pipe 22 communicated with the iron salt dissolving zone 9, a third sewage discharge pipe 23 communicated with the fenton reaction zone 10, a fourth sewage discharge pipe 24 communicated with the pH adjusting zone 11, and a fifth sewage discharge pipe 25 communicated with the flocculation zone 12.
By adopting the technical scheme, the sludge deposited in each area can be discharged regularly, and the increase of the workload of the main tower due to excessive deposition is avoided.
In this embodiment, the landfill leachate treatment facility further comprises a settling tower communicated with the wastewater outlet pipe 14.
By adopting the technical scheme, the flocculation wastewater is subjected to sedimentation treatment by adopting the sedimentation tower so as to separate out supernate for recycling, thereby achieving the purpose of improving the quality of the wastewater.
In this embodiment, the settling tower includes a housing 26, a filtering device accommodated in the housing 26, an input water pipe 27 extending into the housing 26, and an output water pipe 28 penetrating through the housing 26, wherein a water outlet end of the input water pipe 27 penetrates through the filtering device to a side of the filtering device near the bottom of the housing 26, a water inlet end of the output water pipe 28 is disposed at a side of the filtering device near the top of the housing 26, and the wastewater outlet pipe 14, the input water pipe 27, the filtering device, and the output water pipe 28 are sequentially communicated along a wastewater treatment direction.
By adopting the technical scheme, the wastewater in the flocculation area 12 enters the bottom of the filtering device through the wastewater outlet pipe 14 and the input water pipe 27, is filtered and intercepted by the filtering device, rises to the top of the filtering device, and is output by the output water pipe 28 to be recycled, so that the purpose of improving the quality of the wastewater is achieved.
In this embodiment, the filtering device includes a supporting member connected to the inner wall of the housing 26, a grating plate abutting against the supporting member, and a pipe chute filler 29 disposed on the top of the grating plate, and the input water pipe 27, the grating plate, the pipe chute filler 29, and the output water pipe 28 are sequentially communicated along the treatment direction of the wastewater.
Adopt above-mentioned technical scheme to it intercepts mud to filter to prevent that mud from passing filter equipment and influencing supernatant quality of water.
In this embodiment, the settling tower further comprises an overflow tooth groove 30 arranged on the shell 26, the overflow tooth groove 30 is arranged on one side of the filtering device close to the top of the shell 26, and the filtering device, the overflow tooth groove 30 and the output water pipe 28 are sequentially communicated along the treatment direction of the wastewater.
By adopting the technical scheme, the supernatant filtered and intercepted by the filtering device overflows into the overflow tooth groove body 30 and then is output by the output water pipe 28 for recycling, so that the aim of improving the quality of the wastewater is fulfilled, and the quality of the supernatant is further improved.
In this embodiment, a sixth drainage pipe 31 for discharging settled sludge is opened at the bottom of the housing 26, and a second reinforcing rib 32 is sleeved on the outer wall of the housing 26.
By adopting the technical scheme, the shell 26 discharges settled sludge in the shell 26 periodically through the sixth sewage discharge pipe 31, so that the phenomenon that the work load of the settling tower is increased due to excessive deposition is avoided. Further, the landfill leachate treatment facility also comprises a biological filter tower 33 communicated with the output water pipe 27 and used for nitrogen and phosphorus removal of wastewater. This landfill leachate treatment facility is used for handling domestic waste leachate high concentration waste water, is in order to reduce the COD in the filtration liquid, also can be directed against the project that the conductivity is not high, carbon nitrogen ratio is unbalanced, can also carry out secondary open loop chain scission biochemical once more, also can make filtration liquid quality of water become clear simultaneously.
The above-described embodiments are preferred implementations of the present invention, and the present invention may be implemented in other ways without departing from the spirit of the present invention.
Claims (10)
1. The utility model provides a landfill leachate treatment facility which characterized in that: including the main tower, the main tower includes the staving and all holds stand, first baffle, second baffle, third baffle, fourth baffle and the fifth baffle of locating in the staving, the bottom fixed connection of stand and staving, first baffle, second baffle, third baffle, fourth baffle and fifth baffle distribute in proper order between stand and staving, form acidity regulation district, molysite dissolving area, fenton reaction zone, pH back district and flocculation district between first baffle and the second baffle, between second baffle and the third baffle, between third baffle and the fourth baffle, between fourth baffle and the fifth baffle, between fifth baffle and the first baffle respectively, the staving is provided with waste water inlet tube and waste water outlet pipe, the through-hole has all been seted up to second baffle, third baffle, fourth baffle and fifth baffle, waste water inlet tube, acidity regulation district, The iron salt dissolving zone, the Fenton reaction zone, the pH adjusting zone, the flocculation zone and the wastewater outlet pipe are communicated in sequence along the wastewater treatment direction.
2. The landfill leachate treatment plant of claim 1, wherein: the main tower further comprises a first aeration pipe and a second aeration pipe which penetrate through the barrel body, an aeration opening of the first aeration pipe extends into the bottom of the acid adjusting area, and an aeration opening of the second aeration pipe extends into the bottom of the pH adjusting area.
3. The landfill leachate treatment plant of claim 1, wherein: the main tower still including all with first mixer, second mixer and the third mixer that the staving is connected, first mixer is used for stirring the waste water in molysite dissolution district, the second mixer is used for stirring the waste water in fenton reaction district, the third mixer is used for stirring the waste water in flocculation district.
4. The landfill leachate treatment plant of claim 1, wherein: the barrel body is an iron barrel, and the upright post is a steel pipe column; a first reinforcing rib is sleeved on the outer wall of the barrel body; the outer wall coating of staving has the anticorrosive coating, the inner wall in molysite dissolving zone and the inner wall in fenton reaction zone all adhere to and have two three oily anticorrosion structures of cloth.
5. The landfill leachate treatment plant of claim 1, wherein: the barrel body is further provided with a first sewage discharge pipe communicated with the acidic adjusting area, a second sewage discharge pipe communicated with the ferric salt dissolving area, a third sewage discharge pipe communicated with the Fenton reaction area, a fourth sewage discharge pipe communicated with the pH adjusting back area and a fifth sewage discharge pipe communicated with the flocculation area.
6. The landfill leachate treatment plant of claim 1, wherein: the landfill leachate treatment facility still includes with the settling column of waste water outlet pipe intercommunication.
7. The landfill leachate treatment plant of claim 6, wherein: the settling tower comprises a shell, a filtering device arranged in the shell in a containing mode, an input water pipe extending into the shell and an output water pipe penetrating through the shell, wherein the water outlet end of the input water pipe runs through one side, close to the bottom of the shell, of the filtering device, the water inlet end of the output water pipe is arranged on one side, close to the top of the shell, of the filtering device, and the wastewater outlet pipe, the input water pipe, the filtering device and the output water pipe are sequentially communicated along the treatment direction of wastewater.
8. The landfill leachate treatment plant of claim 7, wherein: the filter device comprises a support piece connected with the inner wall of the shell, a grating plate abutted against the support piece and an inclined tube filler arranged at the top of the grating plate, wherein the input water pipe, the grating plate, the inclined tube filler and the output water pipe are sequentially communicated along the treatment direction of wastewater.
9. The landfill leachate treatment plant of claim 7, wherein: the sedimentation tower also comprises an overflow tooth groove body accommodated in the shell, the overflow tooth groove body is arranged on one side of the filtering device close to the top of the shell, and the filtering device, the overflow tooth groove body and the output water pipe are sequentially communicated along the wastewater treatment direction; the bottom of the shell is provided with a sixth sewage discharge pipe used for discharging settled sludge, and the outer wall of the shell is sleeved with a second reinforcing rib.
10. The landfill leachate treatment plant of claim 7, wherein: the landfill leachate treatment facility still includes with the biological filter tower of delivery pipe intercommunication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111265595.XA CN113955876A (en) | 2021-10-28 | 2021-10-28 | Landfill leachate treatment facility |
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