CN114275977A - Landfill leachate treatment device and method - Google Patents
Landfill leachate treatment device and method Download PDFInfo
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- CN114275977A CN114275977A CN202111681310.0A CN202111681310A CN114275977A CN 114275977 A CN114275977 A CN 114275977A CN 202111681310 A CN202111681310 A CN 202111681310A CN 114275977 A CN114275977 A CN 114275977A
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- filtrate
- device assembly
- filter
- input port
- landfill leachate
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- 238000000034 method Methods 0.000 title claims abstract description 21
- 239000000149 chemical water pollutant Substances 0.000 title claims abstract description 18
- 238000001914 filtration Methods 0.000 claims abstract description 53
- 238000001704 evaporation Methods 0.000 claims abstract description 21
- 230000008020 evaporation Effects 0.000 claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 230000018044 dehydration Effects 0.000 claims abstract description 15
- 238000006297 dehydration reaction Methods 0.000 claims abstract description 15
- 239000010865 sewage Substances 0.000 claims abstract description 15
- 239000000706 filtrate Substances 0.000 claims description 67
- 239000007787 solid Substances 0.000 claims description 17
- 239000007788 liquid Substances 0.000 claims description 15
- 230000015556 catabolic process Effects 0.000 claims description 7
- 238000006731 degradation reaction Methods 0.000 claims description 7
- 239000012510 hollow fiber Substances 0.000 claims description 7
- 239000012528 membrane Substances 0.000 claims description 7
- 230000000813 microbial effect Effects 0.000 claims description 7
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 241000108664 Nitrobacteria Species 0.000 claims description 3
- 238000005273 aeration Methods 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- 239000013049 sediment Substances 0.000 claims description 3
- 239000010802 sludge Substances 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 2
- 239000012153 distilled water Substances 0.000 abstract description 3
- 229910001385 heavy metal Inorganic materials 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 3
- 238000000926 separation method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 241000255925 Diptera Species 0.000 description 1
- 241000257303 Hymenoptera Species 0.000 description 1
- 241000700159 Rattus Species 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000012065 filter cake Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000005541 medical transmission Effects 0.000 description 1
- 230000001546 nitrifying effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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- Treatment Of Sludge (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Abstract
The invention discloses a landfill leachate treatment device and a method, which comprises a base, and a leachate coarse filtering device assembly, a plate-and-frame filter press filtering device assembly, an evaporation dehydration barrel device assembly and an MBR module filtering device assembly which are arranged above the base; the percolate coarse filtering device assembly, the plate-and-frame filter press filtering device assembly, the evaporation dehydration barrel device assembly and the MBR module filtering device assembly are sequentially connected and conducted; according to the invention, leachate sequentially passes through a leachate coarse filtration device assembly, a plate-and-frame filter press filtration device assembly, an evaporation dehydration barrel device assembly and an MBR module filtration device assembly, sewage is filtered, biochemical and chemical methods are difficult to meet the discharge requirements, a low-temperature evaporation method is adopted to evaporate water in the sewage and condense the water into distilled water, the produced water can remove harmful components and heavy metals in the sewage, and biochemical treatment and standard improvement are carried out to realize a reduced treatment process; meanwhile, low-temperature heat pumps are adopted for evaporation, so that energy is saved.
Description
Technical Field
The invention relates to the technical field of garbage treatment, in particular to a garbage leachate treatment device and method.
Background
Along with the increasing living standard of people, the treatment amount of household garbage is gradually increased in daily life. The traditional manual garbage collection method is that garbage cans are arranged at elevator rooms or fire paths of each floor for residents to throw garbage, and the garbage is temporarily stored in the garbage cans until cleaners are used for collecting and transporting the garbage. In old cities or streets, garbage carts or large garbage cans are used for containing garbage, and the surrounding of the garbage carts or the large garbage cans are all emitted with thick smell to pollute air. Because the garbage cannot be stored in a sealed manner in the collection process, odor, mosquitoes, rats and ants and potential disease transmission risks exist at any time, and the living quality of residents is seriously influenced;
the existing garbage is generally treated by incineration, but a lot of garbage has a large amount of moisture, the direct incineration effect is not good, and the existing garbage treatment device has complicated structure and troublesome operation or has poor solid-liquid separation effect when the solid-liquid separation is carried out on the garbage.
Disclosure of Invention
The invention aims to provide a device and a method for treating landfill leachate, so as to solve the technical problems mentioned in the background technology.
The garbage leachate treatment device is realized by the following technical scheme: comprises a base, a percolate coarse filtering device assembly, a plate-and-frame filter press filtering device assembly, an evaporation dehydration barrel device assembly and an MBR module filtering device assembly, wherein the percolate coarse filtering device assembly, the plate-and-frame filter press filtering device assembly, the evaporation dehydration barrel device assembly and the MBR module filtering device assembly are arranged above the base;
the filtration liquid coarse filtration device assembly, the plate-and-frame filter press filtration device assembly, the evaporation dehydration barrel device assembly and the MBR module filtration device assembly are sequentially connected and conducted.
As the preferred technical scheme, the percolate coarse filtering device component comprises a first filtering box and a centrifugal pump; a detachable filter screen is arranged in the first filter tank, a percolate input port and a fifth filtrate discharge port are arranged on the side surface of the first filter tank, and a sewage discharge port is arranged at the bottom of the first filter tank; the other end of the percolate input port is arranged above the filter screen; the other end of the fifth filtrate outlet is connected with a centrifugal pump;
the filter device component of the plate-and-frame filter press comprises a filter device main body; a first filtrate inlet is formed in one side of the filter pressing device main body, and a first filtrate outlet is formed in the other side of the filter pressing device main body; the first filtrate input port is connected with a centrifugal pump;
the evaporation dehydration barrel device component comprises a barrel body; a second filtrate output port and a second filtrate input port are respectively arranged on two opposite sides of the cylinder body; a rotating shaft and a heating device are arranged in the cylinder body; the second filtrate input port is connected with the first filtrate discharge port;
the MBR module filtering device component comprises a second filtering box; a third filtrate input port is arranged at the upper end of the second filter box; more than one hollow fiber membrane device is arranged in the second filter box; the third filtrate input port is connected with the second filtrate output port and is arranged opposite to more than one hollow fiber membrane device up and down;
an aeration pipeline is arranged at the bottom in the second filter tank, and an activated sludge inlet pipeline and a cleaning/sediment discharge pipeline are respectively arranged at two opposite sides.
As the preferred technical scheme, the bottom of the cylinder body is provided with a solid residue discharge outlet; more than one bracket is arranged on the surface of the rotating shaft, and blades are obliquely arranged at the other end of each bracket; a motor is arranged on the side surface of the cylinder body; the motor is movably connected with the rotating shaft.
Preferably, the filter press device body comprises more than one filter plate, and a filter chamber is arranged between adjacent filter plates.
The method for treating the landfill leachate is realized by the following technical scheme: the method specifically comprises the following steps:
s1, separating solid and liquid of the landfill leachate entering from the leachate input port;
s2, dehydrating and discharging the filtrate entering from the first filtrate input port;
s3, separating water vapor from solid residues by the filtrate entering from the second filtrate input port;
s4, performing microbial degradation and odor removal on the filtrate entering from the third filtrate input port, and separating solid from liquid.
As a preferable technical scheme, a microbial degradation agent and nitrobacteria are added into the filtrate entering from the third filtrate input port.
The invention has the beneficial effects that:
the leachate is sequentially filtered by a leachate coarse filtering device assembly, a plate-and-frame filter press filtering device assembly, an evaporation dehydration barrel device assembly and an MBR module filtering device assembly, the sewage is filtered, biochemical and chemical methods are difficult to meet the discharge requirement, a low-temperature evaporation method is adopted to evaporate water in the sewage and condense the water into distilled water, the produced water can remove harmful components and heavy metals in the sewage, and the reduction of the treatment flow is realized by biochemical treatment and upgrading; meanwhile, low-temperature heat pumps are adopted for evaporation, so that energy is saved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of the landfill leachate treatment apparatus and method of the present invention;
fig. 2 is an internal structure diagram of the landfill leachate treatment device and method of the present invention.
Detailed Description
All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.
As shown in fig. 1 and fig. 2, the landfill leachate treatment device of the present invention comprises a base 101, and a leachate coarse filtration device assembly, a plate-and-frame filter press filtration device assembly, an evaporation dehydration barrel device assembly and an MBR module filtration device assembly which are installed above the base 101;
the filtration liquid coarse filtration device assembly, the plate-and-frame filter press filtration device assembly, the evaporation dehydration barrel device assembly and the MBR module filtration device assembly are sequentially connected and conducted.
In the embodiment, the percolate coarse filtering device component comprises a first filtering box 1 and a centrifugal pump 2; a detachable filter screen 3 is arranged in the first filter tank 1, a percolate input port 4 and a fifth percolate output port 5 are arranged on the side surface of the first filter tank 1, and a sewage discharge port 6 is arranged at the bottom; the other end of the percolate input port 4 is arranged above the filter screen 3; the other end of the fifth filtrate outlet 5 is connected with the centrifugal pump 2;
the filter device component of the plate-and-frame filter press comprises a filter pressing device main body 7; a first filtrate inlet 8 is formed in one side of the filter pressing device main body 7, and a first filtrate outlet 9 is formed in the other side of the filter pressing device main body; the first filtrate input port 8 is connected with the centrifugal pump 2;
the evaporation dehydration barrel device component comprises a barrel body 10; a second filtrate output port 11 and a second filtrate input port 12 are respectively arranged on two opposite sides of the cylinder body 10; a rotating shaft 13 and a heating device 14 are arranged in the cylinder 10; the second filtrate input port 12 is connected with the first filtrate discharge port 9;
the MBR module filtering device assembly comprises a second filtering box 15; a third filtrate input port 100 is arranged at the upper end of the second filter box 15; more than one hollow fiber membrane device 16 is arranged in the second filter box 15; the third filtrate input port 100 is connected with the second filtrate output port 11 and is arranged opposite to more than one hollow fiber membrane device 16 up and down;
the second filtering tank 15 is provided with an aeration pipe 17 at the bottom and an activated sludge inlet pipe 18 and a washing/settling matter discharge pipe 19 at opposite sides, respectively.
In this embodiment, the bottom of the cylinder 10 is provided with a solid residue discharge outlet 20; more than one bracket 21 is arranged on the surface of the rotating shaft 13, and the other end of the bracket 21 is obliquely provided with a blade 22; the motor 23 is arranged on the side surface of the cylinder 10; the motor 23 is movably connected with the rotating shaft 13.
In this embodiment, the filter press device main body 7 includes more than one filter plate 24, and a filter chamber is provided between adjacent filter plates 24; the main body 7 of the filter pressing device is a common technical means in the parallel field.
As shown in fig. 1 and fig. 2, the method for treating landfill leachate of the present invention specifically includes the following steps:
s1, separating solid and liquid of the landfill leachate entering from the leachate input port; the garbage percolate passes through a filter screen 3 to separate large-particle solid impurities, and a drain outlet 6 drains sediments in the garbage percolate; the centrifugal pump 2 conveys the filtrate from the fifth filtrate outlet 5 into the first filtrate inlet 8;
s2, dehydrating and discharging the filtrate entering from the first filtrate input port; the filter material is sent into the filter chamber under the strong positive pressure of the main body of the filter pressing device, the solid part of the filter material entering the filter chamber is intercepted by the filter cloth to form a filter cake, and the liquid part permeates through the filter medium and is discharged out of the filter chamber, thereby achieving the purpose of solid-liquid separation; the first filtrate outlet 9 conveys the filter chamber to the second filtrate inlet 12;
s3, separating water vapor from solid residues by the filtrate entering from the second filtrate input port; the heating device 14 in the cylinder 10 reciprocates and fully stirs the filtrate to accelerate the separation of water vapor and solid residues, the inclined blades convey the solid residues to the solid residue discharge port 20, and the third filtrate input port 100 is connected with the second filtrate output port 11;
s4, performing microbial degradation and odor removal on the filtrate entering from the third filtrate inlet, and separating solid from liquid; adding a microbial degradation agent and nitrobacteria into the filtrate to degrade organic pollutants in the sewage and convert ammonia nitrogen in the sewage so as to remove peculiar smell generated in the sewage, and finally performing efficient solid-liquid separation on water through a hollow fiber membrane.
In this embodiment, a microbial degradation agent and nitrifying bacteria are added to the filtrate entering from the third filtrate inlet.
The leachate is sequentially filtered by a leachate coarse filtering device assembly, a plate-and-frame filter press filtering device assembly, an evaporation dehydration barrel device assembly and an MBR module filtering device assembly, the sewage is filtered, biochemical and chemical methods are difficult to meet the discharge requirement, a low-temperature evaporation method is adopted to evaporate water in the sewage and condense the water into distilled water, the produced water can remove harmful components and heavy metals in the sewage, and the reduction of the treatment flow is realized by biochemical treatment and upgrading; meanwhile, low-temperature heat pumps are adopted for evaporation, so that energy is saved.
The above is only a specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims.
Claims (6)
1. A landfill leachate treatment device comprises a base (101), and a leachate coarse filtration device assembly, a plate-and-frame filter press filtration device assembly, an evaporation dehydration barrel device assembly and an MBR module filtration device assembly which are arranged above the base (101);
the method is characterized in that: the filtration liquid coarse filtration device assembly, the plate-and-frame filter press filtration device assembly, the evaporation dehydration barrel device assembly and the MBR module filtration device assembly are sequentially connected and conducted.
2. The landfill leachate treatment plant of claim 1, wherein: the percolate coarse filtering device component comprises a first filtering box (1) and a centrifugal pump (2); a detachable filter screen (3) is arranged in the first filter tank (1), a percolate input port (4) and a fifth filtrate discharge port (5) are arranged on the side surface of the first filter tank (1), and a sewage discharge port (6) is arranged at the bottom; the other end of the percolate input port (4) is arranged above the filter screen (3); the other end of the fifth liquid outlet (5) is connected with the centrifugal pump (2);
the filter device component of the plate-and-frame filter press comprises a filter pressing device main body (7); a first filtrate inlet (8) is arranged on one side of the filter pressing device main body (7), and a first filtrate outlet (9) is arranged on the other side; the first filtrate inlet (8) is connected with the centrifugal pump (2);
the evaporation dehydration barrel device component comprises a barrel body (10); a second filtrate output port (11) and a second filtrate input port (12) are respectively arranged on two opposite sides of the cylinder body (10); a rotating shaft (13) and a heating device (14) are arranged in the cylinder body (10); the second filtrate input port (12) is connected with the first filtrate discharge port (9);
the MBR module filtering device component comprises a second filtering box (15); a third filtrate input port (100) is arranged at the upper end of the second filtering box (15); more than one hollow fiber membrane device (16) is arranged in the second filter box (15); the third filtrate input port (100) is connected with the second filtrate output port (11) and is arranged opposite to more than one hollow fiber membrane device (16) up and down;
an aeration pipeline (17) is arranged at the bottom in the second filter tank (15), and an activated sludge inlet pipeline (18) and a cleaning/sediment discharge pipeline (19) are respectively arranged at two opposite sides.
3. The landfill leachate treatment plant of claim 2, wherein: a solid residue discharge outlet (20) is arranged at the bottom of the cylinder body (10); more than one bracket (21) is arranged on the surface of the rotating shaft (13), and the other end of the bracket (21) is obliquely provided with a blade (22); a motor (23) is arranged on the side surface of the cylinder body (10); the motor (23) is movably connected with the rotating shaft (13).
4. The landfill leachate treatment plant of claim 2, wherein: the filter pressing device main body (7) comprises more than one filter plate (24), and a filter chamber is arranged between the adjacent filter plates (24).
5. A landfill leachate treatment method specifically comprises the following steps:
s1, separating solid and liquid of the landfill leachate entering from the leachate input port;
s2, dehydrating and discharging the filtrate entering from the first filtrate input port;
s3, separating water vapor from solid residues by the filtrate entering from the second filtrate input port;
s4, performing microbial degradation and odor removal on the filtrate entering from the third filtrate input port, and separating solid from liquid.
6. The landfill leachate treatment method according to claim 5, characterized in that: and a microbial degradation agent and nitrobacteria are added into the filtrate entering from the third filtrate inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111681310.0A CN114275977A (en) | 2021-12-30 | 2021-12-30 | Landfill leachate treatment device and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111681310.0A CN114275977A (en) | 2021-12-30 | 2021-12-30 | Landfill leachate treatment device and method |
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| CN114275977A true CN114275977A (en) | 2022-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111681310.0A Pending CN114275977A (en) | 2021-12-30 | 2021-12-30 | Landfill leachate treatment device and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114661074A (en) * | 2022-05-24 | 2022-06-24 | 深圳市家家分类科技有限公司 | Liquid level control method and device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205170588U (en) * | 2015-10-27 | 2016-04-20 | 大连广泰源环保科技有限公司 | Landfill leachate's concentrated processing system |
| US20200102233A1 (en) * | 2018-09-28 | 2020-04-02 | Oregon State University | Wastewater treatment system and method |
-
2021
- 2021-12-30 CN CN202111681310.0A patent/CN114275977A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205170588U (en) * | 2015-10-27 | 2016-04-20 | 大连广泰源环保科技有限公司 | Landfill leachate's concentrated processing system |
| US20200102233A1 (en) * | 2018-09-28 | 2020-04-02 | Oregon State University | Wastewater treatment system and method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114661074A (en) * | 2022-05-24 | 2022-06-24 | 深圳市家家分类科技有限公司 | Liquid level control method and device |
| CN114661074B (en) * | 2022-05-24 | 2022-09-20 | 深圳市家家分类科技有限公司 | Liquid level control method and device |
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Application publication date: 20220405 |