CN210340616U - Landfill leachate treatment facility - Google Patents
Landfill leachate treatment facility Download PDFInfo
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- CN210340616U CN210340616U CN201920831803.XU CN201920831803U CN210340616U CN 210340616 U CN210340616 U CN 210340616U CN 201920831803 U CN201920831803 U CN 201920831803U CN 210340616 U CN210340616 U CN 210340616U
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Abstract
The utility model relates to the technical field of garbage treatment, in particular to garbage leachate treatment equipment, which comprises an underground collecting tank, a coarse filtration tank, a biochemical tank, a fine filtration tank and a reverse osmosis tank, wherein the underground collecting tank is communicated with a pipeline of the coarse filtration tank through a liquid extracting pump G; the coarse filter tank is arranged in the biochemical tank, and the biochemical tank is communicated with the fine filter tank through a liquid extraction pump H; a flat membrane is arranged in the fine filtration tank, the fine filtration tank is communicated with a reverse osmosis tank pipeline through a solenoid valve I and a fine filtration pump in sequence, and the fine filtration tank is connected with a reverse-blowing pump through a solenoid valve J; the reverse osmosis tank comprises a tank body and a reverse osmosis device, a reverse osmosis membrane is arranged in the reverse osmosis device, the tank body is communicated with a reverse osmosis device pipeline, and an external water source is communicated with the reverse osmosis device pipeline. The utility model can treat percolate without concentrated solution discharge in the whole course, the operation cost is as low as 10-20 yuan, and the win-win of economy and benefit can be realized.
Description
Technical Field
The utility model relates to a refuse treatment technical field, concretely relates to landfill leachate treatment facility that operating cost is low and do not produce the concentrate.
Background
Municipal landfill leachate treatment has been a difficult problem that plagues governments and sewage treatment enterprises. At present, the domestic landfill leachate treatment process usually adopts the processes of dosing biochemistry, ultrafiltration and reverse osmosis, and the medicament generally selects polychlorinatedAluminum, ferrous sulfate, or polyacrylamide. This method has a long treatment cycle and high cost, and also produces a large amount of concentrated solution containing various heavy metals. COD in landfill leachateCrHigh, generally up to thousands or even tens of thousands, and the COD of the concentrated solutionCrUp to 3-4 ten thousand, which causes greater secondary pollution for further processing. And the concentrated solution has nondegradable property and high treatment price, and hundreds of yuan of cost is needed for treating one ton of percolate by some treatment plants.
Therefore, the garbage leachate treatment equipment which is low in operation cost and does not generate concentrated solution has very important significance.
SUMMERY OF THE UTILITY MODEL
Aiming at the problems of secondary pollution and high treatment cost caused by the generation of concentrated solution in the treatment process of the landfill leachate in the prior art, the utility model provides a landfill leachate treatment device which has low operation cost and does not generate concentrated solution, the device has small volume and light structure, avoids the cost of transporting sewage by special vehicle and special person for each transfer station, and does not generate gas harm to each street along the way; the device can treat the percolate without discharging concentrated solution in the whole process, the operating cost is as low as 10-20 yuan, and the win-win of economy and benefit can be realized.
The utility model provides a garbage leachate treatment device, which comprises an underground collecting tank, a coarse filtration tank, a biochemical tank, a fine filtration tank and a reverse osmosis tank,
a floating ball switch A is arranged in the underground collecting tank, the underground collecting tank is communicated with a rough filtering tank pipeline through a liquid extracting pump G, and the floating ball switch A is electrically connected with the liquid extracting pump G;
the coarse filtration tank is arranged in the biochemical tank, a float switch B is also arranged in the biochemical tank, the biochemical tank is communicated with the fine filtration tank through a liquid extracting pump H, the float switch B is electrically connected with a time relay, and the time relay is electrically connected with the liquid extracting pump G and the liquid extracting pump H;
a flat membrane, a float switch C and a float switch D are arranged in the fine filtration tank, the fine filtration tank is communicated with a reverse osmosis tank pipeline sequentially through an electromagnetic valve I and a fine filtration pump, the fine filtration tank is connected with a reverse blow pump through an electromagnetic valve J, the float switch C is electrically connected with the electromagnetic valve I and the electromagnetic valve J, and the float switch D is electrically connected with the electromagnetic valve I and the electromagnetic valve J;
the reverse osmosis tank comprises a tank body and a reverse osmosis device, a float switch E and a float switch F are arranged in the tank body, a reverse osmosis membrane is arranged in the reverse osmosis device, the tank body is communicated with a reverse osmosis device pipeline sequentially through an electromagnetic valve K, a booster pump O, a high-pressure pump P, an electromagnetic valve L, an external water source is communicated with the reverse osmosis device pipeline through the electromagnetic valve M, the float switch E is electrically connected with the electromagnetic valve K, the electromagnetic valve L, the electromagnetic valve M, the booster pump O and the high-pressure pump P, and the float switch F is electrically connected with the electromagnetic valve K, the electromagnetic valve L, the electromagnetic valve M, the.
Further, the coarse filter tank is a filter cloth bag with the aperture of 20 mu m.
The filtering cloth bag can remove macromolecular impurities larger than 20 mu m in the landfill leachate.
Furthermore, biochemical groove is equipped with the heating cabinet, be equipped with the heating rod in the heating cabinet, biochemical groove passes through circulating pump and heating cabinet pipeline intercommunication, heating cabinet and circulating pump are connected with float switch B electricity.
A heating box is arranged to heat the coarse filtrate, so that the temperature of the coarse filtrate is controlled at 20 ℃ to provide proper conditions for biochemical reaction; the circulation pump can realize the repeated circulation heating of the coarse filtrate, and the uniformity of the whole biochemical system is ensured.
Further, the biochemical tank is provided with an aeration pump, and the aeration pump is electrically connected with the float switch B.
The aeration pump aerates, which is beneficial to the acceleration of aerobic reaction of the microorganism strains.
Furthermore, a nanometer filler ball is arranged in the biochemical tank, and the nanometer filler in the nanometer filler ball is attached with microorganism bacteria.
The nano-scale filler balls have the advantages of high porosity, large specific surface area, wear resistance, good hydrophilicity and high microorganism attachment rate, and can ensure that microorganism bacteria attached to the nano-scale filler balls are fully contacted with oxygen and coarse filtrate, greatly improve the mass transfer efficiency of a biochemical tank and improve the degradation activity of the microorganism bacteria on impurities in the coarse filtrate.
Furthermore, still be equipped with the greasy dirt remover in the biochemical groove, the greasy dirt remover communicates with coarse filter tank pipeline, and the greasy dirt remover is connected with float switch B electricity.
The oil stain remover can carry out oil and stain removing operation on the upper part of the water surface of the biochemical tank.
Furthermore, the flat membrane in the fine filtration tank is an MBR flat membrane with the pore diameter of 0.1-0.2 μm.
The MBR flat membrane has good chemical stability, contamination resistance and mechanical strength, and can remove impurities larger than 0.1-0.2 mu m in the landfill leachate.
Furthermore, the fine filtration tank is connected with a metering pump through a pipeline, and the metering pump is electrically connected with a float switch C and a float switch D.
While the fine filter pump filters the water, the metering pump also works synchronously, and the scale inhibitor is added into the fine filter liquid to adjust the pH value of the fine filter liquid; when the fine filter pump stops working, the metering pump also stops working at the same time.
Furthermore, the reverse osmosis tank is provided with a purified water outlet and a concentrated water outlet, the purified water outlet is provided with a meter, and the concentrated water outlet is communicated with the biochemical tank pipeline.
The purified water generated after reverse osmosis treatment can be metered by a meter and then discharged from a purified water outlet, and the discharged water meets the first-class A standard of wastewater discharge standard of urban wastewater treatment plants; the concentrated water flows back to the biochemical tank through the pipeline for biochemical treatment again.
The working principle of the utility model is that,
a large amount of landfill leachate is collected in the underground collection pool, and when the liquid level of the landfill leachate in the underground collection pool is higher than the liquid level set by the float switch A, the liquid extracting pump G starts to work and sends the landfill leachate from the underground collection pool to the rough filtering tank;
the coarse filter tank performs coarse filtration on the garbage percolate to obtain coarse filtrate, the coarse filtrate enters a biochemical tank to perform biochemical reaction, when the liquid level of the coarse filtrate in the biochemical tank reaches the liquid level set by a float switch B, a liquid extracting pump G stops working, a time relay starts timing, after 6-12 hours, a circuit of the liquid extracting pump G supplies power, and meanwhile, a liquid extracting pump H starts working and sends the biochemical liquid to a fine filter tank;
when the biochemical liquid level in the fine filtration tank reaches the liquid level set by the float switch C, the electromagnetic valve I and the electromagnetic valve J are opened, the fine filtration pump and the back-flushing pump start to work, the biochemical liquid is filtered by the flat membrane to obtain fine filtration liquid which is sent into the back-flushing tank by the fine filtration pump, fine impurities in the biochemical liquid are intercepted by the flat membrane, and the back-flushing pump back-flushes the impurities attached to the flat membrane; when the liquid level of the biochemical liquid in the fine filtering tank is lower than the liquid level set by the float switch D, the fine filtering pump and the back flushing pump stop working;
the refined liquid enters a reverse osmosis groove for accumulation, when the liquid level of the refined liquid in the reverse osmosis groove reaches the liquid level set by a float switch E, a solenoid valve K and a solenoid valve L are opened, a booster pump O and a high-pressure pump P start to work to pump the refined liquid in the reverse osmosis groove into a reverse osmosis membrane, and the purified water generated by reverse osmosis is discharged; when the liquid level of the refined filtrate in the reverse osmosis tank is lower than the lowest liquid level set by the float switch F, the high-pressure pump P stops working, the electromagnetic valve M is opened, and tap water is pressed into the reverse osmosis membrane to flush the reverse osmosis membrane.
The utility model has the advantages that,
the utility model provides a garbage leachate treatment device with low operation cost and no generation of concentrated solution, which has small volume and light structure, can be installed on a leachate collecting tank of each garbage transfer station, has a special matched house, avoids the cost of sewage transportation by special vehicle special persons for each transfer station, and does not generate gas harm to each street along the way;
the good water generated by the leachate of the utility model after rough filtration, biochemistry, fine filtration and reverse osmosis is discharged after measurement and monitoring, the concentrated water enters the biochemical tank again for biochemistry and repeatedly, and the discharged water conforms to the first-level A standard of the discharge Standard of Sewage from urban sewage treatment plants;
the device can treat the percolate without discharging concentrated solution in the whole process, the operating cost is as low as 10-20 yuan, and the win-win of economy and benefit can be realized.
Furthermore, the effect contrast of the present invention with the prior art is shown in the following table.
Table 1 comparison table of technical effects
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, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic structural diagram of the underground collecting tank, the coarse filtration tank and the biochemical tank of the present invention;
fig. 3 is a schematic structural view of the fine filtration tank and the reverse osmosis tank of the present invention.
In the figure, 1-underground collecting tank, 2-coarse filter tank, 3-biochemical tank, 4-fine filter tank, 5-reverse osmosis tank,
101-a float switch A, 102-a liquid extracting pump G,
301-float switch B, 302-liquid extracting pump H, 303-heating box, 304-circulating pump, 305-aeration pump, 306-nano-grade filler ball, 307-oil stain remover,
401-flat membrane, 402-float switch C, 403-float switch D, 404-electromagnetic valve I, 405-fine filtration pump, 406-electromagnetic valve J, 407-back flushing pump, 408-metering pump,
501-a trough body, 502-a reverse osmosis device, 503-a float switch E, 504-a float switch F, 505-an electromagnetic valve K, 506-a booster pump O, 507-a high-pressure pump P, 508-an electromagnetic valve L, 509-an electromagnetic valve M, 510-a purified water outlet, 511-a concentrated water outlet and 512-a meter.
Detailed Description
In order to make the technical solutions in the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.
Example 1
As shown in the figure, the garbage percolate treatment equipment comprises an underground collecting tank 1, a rough filtering tank 2, a biochemical tank 3, a fine filtering tank 4 and a reverse osmosis tank 5,
a float switch A101 is arranged in the underground collecting tank 1, the underground collecting tank 1 is communicated with a rough filter tank 2 through a liquid extracting pump G102, and the float switch A101 is electrically connected with the liquid extracting pump G102;
the coarse filtration tank 2 is arranged in the biochemical tank 3, a float switch B301 is also arranged in the biochemical tank 3, the biochemical tank 3 is communicated with the fine filtration tank 4 through a liquid extracting pump H302, the float switch B301 is electrically connected with a time relay, and the time relay is electrically connected with the liquid extracting pump G102 and the liquid extracting pump H302;
a flat membrane 401, a float switch C402 and a float switch D403 are arranged in the fine filtration tank 4, the fine filtration tank 4 is communicated with a reverse osmosis tank 5 through a pipeline sequentially through an electromagnetic valve I404 and a fine filtration pump 405, the fine filtration tank 4 is connected with a reverse blow pump 407 through an electromagnetic valve J406, the float switch C402 is electrically connected with the electromagnetic valve I404 and the electromagnetic valve J406, and the float switch D403 is electrically connected with the electromagnetic valve I404 and the electromagnetic valve J406;
the reverse osmosis tank 5 comprises a tank body 501 and a reverse osmosis device 502, a float switch E503 and a float switch F504 are arranged in the tank body 501, a reverse osmosis membrane is arranged in the reverse osmosis device 502, the tank body 5 is communicated with the reverse osmosis device 502 through a pipeline sequentially through an electromagnetic valve K505, a booster pump O506, a high-pressure pump P507 and an electromagnetic valve L508, an external water source is communicated with the reverse osmosis device 502 through an electromagnetic valve M509, the float switch E503 is electrically connected with the electromagnetic valve K505, the booster pump O506, the high-pressure pump P507, the electromagnetic valve L508 and the electromagnetic valve M509, and the float switch F504 is electrically connected with the electromagnetic valve K505, the booster pump O506, the high.
Working principle of example 1:
a large amount of landfill leachate is collected in the underground collecting tank 1, and when the liquid level of the landfill leachate in the underground collecting tank 1 is higher than the liquid level set by the float switch A101, the liquid extracting pump G102 starts to work and sends the landfill leachate from the underground collecting tank 1 to the rough filtering tank 2;
the coarse filter tank 2 performs coarse filtration on the garbage percolate to obtain coarse filtrate, the coarse filtrate enters the biochemical tank 3 for biochemical reaction, when the liquid level of the coarse filtrate in the biochemical tank 3 reaches the liquid level set by the float switch B301, the liquid extracting pump G102 stops working, a time relay starts timing, after 6-12 hours, the circuit of the liquid extracting pump G102 supplies power, and meanwhile, the liquid extracting pump H302 starts working and sends the biochemical liquid to the fine filter tank 4;
when the biochemical liquid level in the fine filtration tank 4 reaches the liquid level set by the float switch C402, the electromagnetic valve I404 and the electromagnetic valve J406 are opened, the fine filtration pump 405 and the back-flushing pump 407 start to work, the biochemical liquid is filtered by the flat membrane 401 to obtain fine filtration liquid, the fine filtration liquid is sent into the back-flushing tank 5 by the fine filtration pump 405, fine impurities in the biochemical liquid are intercepted by the flat membrane 401, and the back-flushing pump 407 back-flushes the impurities attached to the flat membrane 401; when the biochemical liquid level in the fine filtration tank 4 is lower than the liquid level set by the float switch D403, the fine filtration pump 405 and the back flushing pump 407 stop working;
the refined liquid is accumulated in the tank body 501 of the reverse osmosis tank 5, when the liquid level of the refined liquid in the tank body 501 reaches the liquid level set by the float switch E503, the electromagnetic valve K505 and the electromagnetic valve L508 are opened, the booster pump O506 and the high-pressure pump P507 start to work to pump the refined liquid in the tank body 501 into the reverse osmosis device 502, and the purified water generated by reverse osmosis is discharged; when the liquid level of the fine filtrate in the tank body 501 is lower than the liquid level set by the float switch F504, the high-pressure pump P507 stops working, the electromagnetic valve M509 is opened, and the working is started to press tap water into the reverse osmosis device 502 to flush the reverse osmosis membrane.
Example 2
As shown in the figure, on the basis of the embodiment 1, the coarse filter tank 2 is a filter cloth bag with the aperture of 20 μm;
the biochemical tank 3 is provided with a heating box 303 and an aeration pump 304, a heating rod is arranged in the heating box 303, the biochemical tank 3 is communicated with the heating box 303 through a circulating pump 304, a nano-scale filler ball 306 is arranged in the biochemical tank 3, a microorganism bacterium is attached to a nano-scale filler in the nano-scale filler ball 306, an oil stain remover 307 is also arranged in the biochemical tank 3, the oil stain remover 307 is communicated with the rough filtering tank 2 through a pipeline, and the heating box 303, the circulating pump 304, the aeration pump 305 and the oil stain remover 307 are electrically connected with a float switch B301;
the flat membrane 404 in the fine filtration tank 4 is an MBR flat membrane with the aperture of 0.1-0.2 μm, the fine filtration tank 4 is connected with a metering pump 408 through a pipeline, and the metering pump 408 is electrically connected with a float switch C402 and a float switch D403;
the reverse osmosis tank 5 is provided with a purified water outlet 510 and a concentrated water outlet 511, the purified water outlet 510 is provided with a meter 512, and the concentrated water outlet 511 is communicated with the biochemical tank 3 through a pipeline.
Although the present invention has been described in detail by referring to the drawings in conjunction with the preferred embodiments, the present invention is not limited thereto. Various equivalent modifications or substitutions can be made on the embodiments of the present invention by those skilled in the art without departing from the spirit and substance of the present invention, and these modifications or substitutions are intended to be within the scope of the present invention/any person skilled in the art can easily conceive of changes or substitutions within the technical scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (9)
1. A landfill leachate treatment device is characterized by comprising an underground collecting tank (1), a rough filtering tank (2), a biochemical tank (3), a fine filtering tank (4) and a reverse osmosis tank (5),
a float switch A (101) is arranged in the underground collecting tank (1), the underground collecting tank (1) is communicated with a rough filtering tank (2) through a liquid extracting pump G (102) by a pipeline, and the float switch A (101) is electrically connected with the liquid extracting pump G (102);
the coarse filtration tank (2) is arranged in the biochemical tank (3), a float switch B (301) is further arranged in the biochemical tank (3), the biochemical tank (3) is communicated with the fine filtration tank (4) through a liquid extracting pump H (302), the float switch B (301) is electrically connected with a time relay, and the time relay is electrically connected with the liquid extracting pump G (102) and the liquid extracting pump H (302);
a flat membrane (401), a float switch C (402) and a float switch D (403) are arranged in the fine filtration tank (4), the fine filtration tank (4) is communicated with the reverse osmosis tank (5) through a pipeline sequentially through an electromagnetic valve I (404) and a fine filtration pump (405), the fine filtration tank (4) is connected with a reverse blow pump (407) through an electromagnetic valve J (406), the float switch C (402) is electrically connected with the electromagnetic valve I (404) and the electromagnetic valve J (406), and the float switch D (403) is electrically connected with the electromagnetic valve I (404) and the electromagnetic valve J (406);
the reverse osmosis tank (5) comprises a tank body (501) and a reverse osmosis device (502), a float switch E (503) and a float switch F (504) are arranged in the tank body (501), a reverse osmosis membrane is arranged in the reverse osmosis device (502), the tank body (501) is communicated with the reverse osmosis device (502) through a pipeline by an electromagnetic valve K (505), a booster pump O (506), a high-pressure pump P (507) and an electromagnetic valve L (508) in sequence, an external water source is communicated with the reverse osmosis device (502) through a pipeline by an electromagnetic valve M (509), the float switch E (503) is electrically connected with the electromagnetic valve K (505), the electromagnetic valve L (508), the electromagnetic valve M (509), the booster pump O (506) and the high-pressure pump P (507), the float switch F (504) is electrically connected with the electromagnetic valve K (505), the electromagnetic valve L (508), the electromagnetic valve M (509), the booster pump O (506) and the high-pressure pump P (507).
2. The landfill leachate treatment plant of claim 1, wherein the coarse filtration tank (2) is a filter cloth bag with a pore size of 20 μm.
3. The landfill leachate treatment facility of claim 1, wherein the biochemical tank (3) is provided with a heating tank (303), a heating rod is arranged in the heating tank (303), the biochemical tank (3) is communicated with the heating tank (303) through a circulating pump (304), and the heating tank (303) and the circulating pump (304) are electrically connected with a float switch B (301).
4. The landfill leachate treatment plant of claim 1, wherein the biochemical tank (3) is provided with an aeration pump (305), and the aeration pump (305) is electrically connected with a float switch B (301).
5. The landfill leachate treatment facility of claim 1, wherein the biochemical tank (3) is filled with nanoscale filler balls (306), and the nanoscale filler balls (306) are filled with microorganisms.
6. The landfill leachate treatment facility of claim 1, wherein the biochemical tank (3) is further provided with an oil stain remover (307), the oil stain remover (307) is in pipeline communication with the coarse filtration tank (2), and the oil stain remover (307) is electrically connected with the float switch B (301).
7. The landfill leachate treatment plant of claim 1, wherein the flat membrane (401) in the fine filtration tank (4) is an MBR flat membrane with a pore size of 0.1-0.2 μm.
8. The landfill leachate treatment plant of claim 1, wherein the fine filtration tank (4) is connected with a metering pump (408) through a pipeline, and the metering pump (408) is electrically connected with a float switch C (402) and a float switch D (403).
9. The landfill leachate treatment plant of claim 1, wherein the reverse osmosis tank (5) is provided with a purified water outlet (510) and a concentrated water outlet (511), the purified water outlet (510) is provided with a meter (512), and the concentrated water outlet (511) is in pipe communication with the biochemical tank (3).
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CN201920831803.XU CN210340616U (en) | 2019-06-04 | 2019-06-04 | Landfill leachate treatment facility |
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CN201920831803.XU CN210340616U (en) | 2019-06-04 | 2019-06-04 | Landfill leachate treatment facility |
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CN210340616U true CN210340616U (en) | 2020-04-17 |
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CN201920831803.XU Expired - Fee Related CN210340616U (en) | 2019-06-04 | 2019-06-04 | Landfill leachate treatment facility |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113929264A (en) * | 2021-10-20 | 2022-01-14 | 沈赵兵 | Automatic treatment equipment for garbage leachate sewage |
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2019
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113929264A (en) * | 2021-10-20 | 2022-01-14 | 沈赵兵 | Automatic treatment equipment for garbage leachate sewage |
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