CN113860632A - Pretreatment system and method for landfill leachate wastewater - Google Patents
Pretreatment system and method for landfill leachate wastewater Download PDFInfo
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- CN113860632A CN113860632A CN202111073051.3A CN202111073051A CN113860632A CN 113860632 A CN113860632 A CN 113860632A CN 202111073051 A CN202111073051 A CN 202111073051A CN 113860632 A CN113860632 A CN 113860632A
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- 239000002351 wastewater Substances 0.000 title claims abstract description 21
- 239000000149 chemical water pollutant Substances 0.000 title claims description 23
- 238000000034 method Methods 0.000 title claims description 13
- 238000004062 sedimentation Methods 0.000 claims abstract description 101
- 239000010802 sludge Substances 0.000 claims abstract description 49
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 46
- 238000005345 coagulation Methods 0.000 claims abstract description 27
- 230000015271 coagulation Effects 0.000 claims abstract description 27
- 239000000701 coagulant Substances 0.000 claims abstract description 26
- 238000003756 stirring Methods 0.000 claims abstract description 23
- 238000006243 chemical reaction Methods 0.000 claims abstract description 18
- 238000002203 pretreatment Methods 0.000 claims abstract description 11
- 238000004659 sterilization and disinfection Methods 0.000 claims description 21
- 230000003647 oxidation Effects 0.000 claims description 17
- 238000007254 oxidation reaction Methods 0.000 claims description 17
- 238000001914 filtration Methods 0.000 claims description 14
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims description 13
- 230000002378 acidificating effect Effects 0.000 claims description 11
- 230000001105 regulatory effect Effects 0.000 claims description 8
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 5
- 230000000249 desinfective effect Effects 0.000 claims description 3
- 238000000746 purification Methods 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 3
- 239000002253 acid Substances 0.000 claims 3
- 230000018044 dehydration Effects 0.000 claims 2
- 238000006297 dehydration reaction Methods 0.000 claims 2
- 238000002156 mixing Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 5
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 4
- 238000001556 precipitation Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 238000001704 evaporation Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 239000012153 distilled water Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- 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
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
-
- 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
-
- 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
- C02F1/722—Oxidation by peroxides
-
- 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
- C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/06—Contaminated groundwater or leachate
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
Abstract
The invention relates to the technical field of garbage treatment, in particular to a pretreatment system and a pretreatment method for garbage leachate wastewater, which comprises an adjusting tank, wherein the adjusting tank is connected with a coagulation reactor, the output end of the coagulation reactor is connected with a first sedimentation tank, the output end of the first sedimentation tank is connected with a Fenton reaction tower, the Fenton reaction tower is connected with a second sedimentation tank, the second sedimentation tank is connected with a biological treatment tank, the output end of the biological treatment tank is connected with a secondary sedimentation, the leachate is guided into the adjusting tank for sedimentation so that the leachate obtains balanced water quality, after the equalization is finished, the leachate is guided into the coagulation reactor, then a coagulant and a coagulant aid are injected, and a stirring motor is started to stir and mix the leachate, the mixing efficiency of the coagulant and the coagulant aid is improved, the leachate can be quickly precipitated in the first sedimentation tank so that sludge is separated from the water quality, then removing high-concentration organic matters in the percolate through a reaction tower.
Description
Technical Field
The invention relates to the technical field of garbage treatment, in particular to a pretreatment system and a pretreatment method for garbage leachate wastewater.
Background
With the rapid development of cities, the yield of municipal waste is increasing day by day. At present, the main treatment modes of municipal waste are a landfill method and a burning method, and the use of the two modes is accompanied with the generation of landfill leachate. The landfill leachate is high-concentration organic wastewater with complex components. The water quality and water quantity change greatly, the treatment is difficult, and the water quality and water quantity can cause serious harm to the environment and human bodies. Therefore, it is essential and crucial for the control and treatment of landfill leachate.
For example, the patent publication "CN 201520415167.4" is named as: the patent of ' a sewage treatment system for landfill leachate ' discloses ' a sewage treatment system comprising a pretreatment system, an evaporation system and a biochemical system, wherein the pretreatment system is communicated with the evaporation system through an intermediate tank, and the evaporation system comprises a filter, a distilled water plate type heat exchanger, a concentrated solution heat exchanger, an exhaust gas heat exchanger, a concentrated solution filter, a hot well, an MVR evaporator and a steam compressor; and the inlet of the filter is communicated with the middle tank, and the outlet of the filter is respectively communicated with the distilled water plate type heat exchanger and the concentrated solution heat exchanger.
The existing method for treating the landfill leachate has the technical defect that the landfill leachate is difficult to discharge after reaching the standard by a single process, and is directly discharged into the natural environment or flowing water, so that the peripheral environment is more and more seriously affected.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a pretreatment system and a pretreatment method for landfill leachate wastewater, which have good treatment effect.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: a pretreatment system and a method for landfill leachate wastewater comprise an adjusting tank, a coagulation reactor, a first sedimentation tank, a Fenton reaction tower, a second sedimentation tank, a biological treatment tank, a secondary sedimentation, an acidic filter tank, an alkaline filter tank, an ozone oxidation tank, a disinfection water tank, a clean water tank, a sludge tank and a sludge dewatering tank, the regulating tank is connected with the coagulation reactor, the output end of the coagulation reactor is connected with the first sedimentation tank, the output end of the first sedimentation tank is connected with a Fenton reaction tower, the Fenton reaction tower is connected with a second sedimentation tank, the second sedimentation tank is connected with a biological treatment tank, the output end of the biological treatment tank is connected with a secondary sedimentation tank, the second grade deposits and connects acidic filter tank, and acidic filter tank connects alkaline filter tank, alkaline filter tank connects the ozone oxidation pond, the disinfection pond is connected to ozone oxidation pond output, the clean water basin is connected to the disinfection pond.
In order to facilitate the treatment of the sludge, the invention has the improvement that the first sedimentation tank, the second sedimentation tank and the secondary sedimentation tank are communicated with a sludge tank, and the sludge tank is connected with a sludge dewatering tank.
In order to improve the conveying effect of the sludge, the invention has the improvement that pump bodies are arranged among the first sedimentation tank, the second sedimentation tank and the secondary sedimentation and sludge tank, and the pump bodies are variable-frequency water pumps.
In order to improve the treatment efficiency of the leachate, the invention improves that a stirring device is arranged in the coagulation reactor, a stirring motor is arranged at the top end of the coagulation reactor, and the stirring motor is connected with the stirring device.
In order to improve the treatment effect of the percolate, the invention improves that a coagulant injection pipe and a coagulant aid injection pipe are respectively arranged at two sides of the top end of the coagulation reactor.
In order to improve the disinfection effect of the equipment, the invention improves that an ultraviolet disinfection device is arranged in the disinfection water tank.
A pretreatment method for landfill leachate wastewater comprises the following steps:
step 1: step 1: and (4) introducing the percolate into a regulating reservoir for balancing the water quality and the water quantity, wherein the balancing time is 2 h.
Step 2: and (3) after the step (1) is finished, introducing the percolate into a coagulation reactor, injecting a coagulant and a coagulant aid into the coagulation reactor, and simultaneously starting a stirring motor to drive a stirring device to stir and mix the percolate for 5 hours.
And step 3: and 2, after the completion of the step 2, guiding the percolate into a first sedimentation tank for preliminary sedimentation, so that part of sludge in the percolate is separated from water, wherein the sedimentation time of the first sedimentation tank is 4h, the percolate sequentially enters a Fenton reaction tower for preliminary treatment after the sedimentation is completed, and after the treatment is completed, the percolate enters a second sedimentation tank for secondary sedimentation, so that the sludge in the percolate is subjected to secondary sedimentation separation, and the sedimentation tank time of the second sedimentation tank is 2 h.
And 4, step 4: and (3) after the step 3 is finished, the obtained leachate enters a biological treatment tank for biochemical treatment, after the treatment is finished, the leachate is guided into secondary sedimentation, the residual sludge in the leachate is subjected to final sedimentation treatment for 4 hours, and after the sedimentation is finished, the leachate sequentially enters an acidic filter tank and an alkaline filter tank for treatment.
And 5: and 4, after the step 4 is finished, guiding the percolate into an ozone oxidation tank for purification and oxidation treatment, then disinfecting the percolate in a disinfection water tank, and finally draining the percolate in a clear water tank.
In order to facilitate the treatment of the sludge, the invention improves the method that the sludge precipitated in the first sedimentation tank, the second sedimentation tank and the second sedimentation tank is guided into the sludge tank through the pump body and is dewatered by the sludge dewatering tank.
(III) advantageous effects
Compared with the prior art, the invention provides a pretreatment system and a pretreatment method for landfill leachate wastewater, which have the following beneficial effects:
the pretreatment system and the pretreatment method for the garbage leachate wastewater are characterized in that firstly, leachate is guided into a regulating reservoir to be precipitated, so that the leachate obtains balanced water quality, after the equalization is completed, the leachate is guided into a coagulation reactor, then coagulant and coagulant aid are injected, and a stirring motor is started to stir and mix the leachate, the coagulant and coagulant aid, so that the mixing efficiency of the leachate, the coagulant and the coagulant aid is improved, the leachate can be rapidly precipitated in a first precipitation tank, sludge and water quality are separated, then high-concentration organic matters in the leachate are removed through a reaction tower, and then the leachate is comprehensively treated through a biological treatment tank, an acidic filtration tank and an alkaline filtration tank, so that residual organic matters, COD (chemical oxygen demand) and other substances in the leachate are fully decomposed.
Drawings
FIG. 1 is a process flow diagram of the structure of the present invention;
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, a pretreatment system and method for landfill leachate wastewater comprises a regulating tank, a coagulation reactor, a first sedimentation tank, a fenton reaction tower, a second sedimentation tank, a biological treatment tank, a secondary sedimentation, an acidic filtration tank, an alkaline filtration tank, an ozone oxidation tank, a disinfection water tank, a clean water tank, a sludge tank and a sludge dewatering tank, wherein the regulating tank is connected with the coagulation reactor, the output end of the coagulation reactor is connected with the first sedimentation tank, the output end of the first sedimentation tank is connected with the fenton reaction tower, the fenton reaction tower is connected with the second sedimentation tank, the second sedimentation tank is connected with the biological treatment tank, the output end of the biological treatment tank is connected with the secondary sedimentation, the secondary sedimentation is connected with the acidic filtration tank, the acidic filtration tank is connected with the alkaline filtration tank, the alkaline filtration tank is connected with the ozone oxidation tank, and the output end of the ozone oxidation tank is connected with the disinfection water tank, the disinfection water tank is connected with the clean water tank.
Furthermore, the first sedimentation tank, the second sedimentation tank and the secondary sedimentation tank are communicated with a sludge tank, and the sludge tank is connected with a sludge dewatering tank, so that the sludge can be conveniently subjected to centralized treatment.
Further, be provided with the pump body between first sedimentation tank, second sedimentation tank and the second grade deposit and the sludge impoundment, the pump body is the frequency conversion water pump, improves the treatment effeciency of mud.
Further, be provided with agitating unit in the reactor that thoughtlessly congeals, the reactor top of thoughtlessly congealing is provided with agitator motor, agitator motor and agitating unit are connected, can improve the mixing efficiency of filtration liquid.
Furthermore, a coagulant injection pipe and a coagulant aid injection pipe are respectively arranged on two sides of the top end of the coagulation reactor.
Further, an ultraviolet disinfection device is arranged in the disinfection water tank.
A pretreatment method for landfill leachate wastewater comprises the following steps:
step 1: step 1: and (4) introducing the percolate into a regulating reservoir for balancing the water quality and the water quantity, wherein the balancing time is 2 h.
Step 2: and (3) after the step (1) is finished, introducing the percolate into a coagulation reactor, injecting a coagulant and a coagulant aid into the coagulation reactor, and simultaneously starting a stirring motor to drive a stirring device to stir and mix the percolate for 5 hours.
And step 3: and 2, after the completion of the step 2, guiding the percolate into a first sedimentation tank for preliminary sedimentation, so that part of sludge in the percolate is separated from water, wherein the sedimentation time of the first sedimentation tank is 4h, the percolate sequentially enters a Fenton reaction tower for preliminary treatment after the sedimentation is completed, and after the treatment is completed, the percolate enters a second sedimentation tank for secondary sedimentation, so that the sludge in the percolate is subjected to secondary sedimentation separation, and the sedimentation tank time of the second sedimentation tank is 2 h.
And 4, step 4: after the step 3 is finished, the obtained leachate enters a biological treatment tank for biochemical treatment, after the treatment is finished, the leachate is guided into secondary sedimentation, the residual sludge in the leachate is subjected to final sedimentation treatment, the sedimentation time is 4h, after the sedimentation is finished, the leachate sequentially enters an acidic filter tank and an alkaline filter tank for treatment, and the content of ammonia nitrogen in the leachate is reduced
And 5: and 4, after the step 4 is finished, guiding the percolate into an ozone oxidation tank for purification and oxidation treatment, then disinfecting the percolate in a disinfection water tank, and finally draining the percolate in a clear water tank.
Furthermore, the sludge precipitated in the first sedimentation tank, the second sedimentation tank and the second sedimentation tank is guided into the sludge tank through the pump body, and then is dewatered by the sludge dewatering tank.
In summary, the working principle and the working process of the pretreatment system and the method for landfill leachate wastewater are that when in use, firstly, leachate is guided into a regulating reservoir for sedimentation, so that the leachate obtains balanced water quality, after the equalization is completed, the leachate is guided into a coagulation reactor, then a coagulant and a coagulant aid are injected, simultaneously, a stirring motor is started to stir and mix the leachate, the mixing efficiency of the leachate, the coagulant and the coagulant aid is improved, the leachate can be quickly precipitated in a first precipitation tank, sludge is separated from the water quality, then high-concentration organic matters and ammonia nitrogen in the leachate are removed through a Fenton reaction tower, then the leachate is precipitated again through a second precipitation tank, so that the sludge is further separated, the treatment efficiency and the quality of the leachate are improved, and then after the precipitation is completed, substances such as COD and the like in the leachate are decomposed through a biological treatment tank, after the treatment is finished, the leachate enters the secondary sedimentation again for final sedimentation, so that the sludge remained in the leachate is highly separated, then the leachate is sequentially led into an acidic filtering tank and an alkaline filtering tank, organic matters and ammonia nitrogen in the leachate are treated, the content of the ammonia nitrogen in the leachate is reduced, after the treatment is finished, the leachate sequentially enters an ozone oxidation tank and a disinfection water tank for oxidation and disinfection treatment, so that the leachate reaches the discharge standard, finally the leachate enters a clean water tank after the treatment is finished, the sludge separated in the first sedimentation tank, the second sedimentation tank and the secondary sedimentation is led into a sludge tank through a pump body, and then the sludge is dewatered by a sludge dewatering tank, so that the sludge is discharged and transported, and the convenience is improved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a pretreatment systems for landfill leachate waste water which characterized in that: including equalizing basin, coagulation reactor, first sedimentation tank, fenton reaction tower, second sedimentation tank, biological treatment pond, second grade deposit, acid filtration pond, alkaline filter tank, ozone oxidation pond, disinfection pond, clean water basin, sludge impoundment and mud dehydration pond, the equalizing basin is connected coagulation reactor, first sedimentation tank is connected to the coagulation reactor output, the fenton reaction tower is connected to first sedimentation tank output, the second sedimentation tank is connected to the fenton reaction tower output, biological treatment pond is connected to the second sedimentation tank, the second grade is deposited to biological treatment pond output connection, acid filtration pond is connected to the second grade deposit, and alkaline filter tank is connected to the acid filtration pond, ozone oxidation pond is connected to the alkaline filter tank, disinfection pond is connected to the ozone oxidation pond output, clean water basin is connected to the disinfection pond.
2. The pretreatment system for landfill leachate wastewater of claim 1, wherein: the first sedimentation tank, the second sedimentation tank and the secondary sedimentation tank are communicated with a sludge tank, and the sludge tank is connected with a sludge dewatering tank.
3. The pretreatment system for landfill leachate wastewater of claim 2, wherein: and pump bodies are arranged among the first sedimentation tank, the second-stage sedimentation tank and the sludge tank, and are variable-frequency water pumps.
4. The pretreatment system for landfill leachate wastewater of claim 1, wherein: the device is characterized in that a stirring device is arranged in the coagulation reactor, a stirring motor is arranged at the top end of the coagulation reactor, and the stirring motor is connected with the stirring device.
5. The pretreatment system for landfill leachate wastewater of claim 1, wherein: and a coagulant injection pipe and a coagulant aid injection pipe are respectively arranged on two sides of the top end of the coagulation reactor.
6. The pretreatment system for landfill leachate wastewater of claim 1, wherein: an ultraviolet disinfection device is arranged in the disinfection water tank.
7. The pretreatment method for landfill leachate wastewater according to claim 1, wherein the pretreatment method comprises the following steps: the method comprises the following steps:
step 1: and (4) introducing the percolate into a regulating reservoir for balancing the water quality and the water quantity, wherein the balancing time is 2 h.
Step 2: and (3) after the step (1) is finished, introducing the percolate into a coagulation reactor, injecting a coagulant and a coagulant aid into the coagulation reactor, and simultaneously starting a stirring motor to drive a stirring device to stir and mix the percolate for 5 hours.
And step 3: and 2, after the completion of the step 2, guiding the percolate into a first sedimentation tank for preliminary sedimentation, so that part of sludge in the percolate is separated from water, wherein the sedimentation time of the first sedimentation tank is 4h, the percolate sequentially enters a Fenton reaction tower for preliminary treatment after the sedimentation is completed, and after the treatment is completed, the percolate enters a second sedimentation tank for secondary sedimentation, so that the sludge in the percolate is subjected to secondary sedimentation separation, and the sedimentation tank time of the second sedimentation tank is 2 h.
And 4, step 4: and (3) after the step 3 is finished, the obtained leachate enters a biological treatment tank for biochemical treatment, after the treatment is finished, the leachate is guided into secondary sedimentation, the residual sludge in the leachate is subjected to final sedimentation treatment for 4 hours, and after the sedimentation is finished, the leachate sequentially enters an acidic filter tank and an alkaline filter tank for treatment.
And 5: and 4, after the step 4 is finished, guiding the percolate into an ozone oxidation tank for purification and oxidation treatment, then disinfecting the percolate in a disinfection water tank, and finally draining the percolate in a clear water tank.
8. The pretreatment method for landfill leachate wastewater according to claim 7, wherein the pretreatment method comprises the following steps: the sludge precipitated in the first sedimentation tank, the second sedimentation tank and the second sedimentation tank is guided into the sludge tank through the pump body, and then is dehydrated through the sludge dehydration tank.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115583742A (en) * | 2022-09-23 | 2023-01-10 | 江西盖亚环保科技有限公司 | Landfill leachate concentrated solution treatment method |
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2021
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115583742A (en) * | 2022-09-23 | 2023-01-10 | 江西盖亚环保科技有限公司 | Landfill leachate concentrated solution treatment method |
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Application publication date: 20211231 |