CN213327194U - Landfill leachate integrates processing apparatus - Google Patents
Landfill leachate integrates processing apparatus Download PDFInfo
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- CN213327194U CN213327194U CN202021615894.2U CN202021615894U CN213327194U CN 213327194 U CN213327194 U CN 213327194U CN 202021615894 U CN202021615894 U CN 202021615894U CN 213327194 U CN213327194 U CN 213327194U
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Abstract
The utility model discloses an integrated treatment device for landfill leachate, which comprises a biochemical treatment component, a forward osmosis treatment component and a sludge treatment component; the anaerobic tank, the denitrification tank, the nitrification tank, the biochemical water production pump, the forward osmosis device and the drawing liquid regeneration device are sequentially connected to form a main treatment pipeline; a sludge outlet of the nitrification tank is connected with a sludge concentration tank, a sludge delivery pump and a sludge dewatering machine, and the sludge dewatering machine is connected to the anaerobic tank to form a sludge dewatering branch; the forward osmosis device is reversely connected to the biochemical water production tank to form a clear liquid circulation branch; the second output end of the forward osmosis device is connected with the concentrated solution tank and the concentrated solution pump to form a concentrated solution discharge branch; the draw solution regeneration device is reversely connected to the forward osmosis device to form a draw solution reflux branch; the drawing liquid regenerating device is connected with a water production tank and a water production pump to form a water production branch. The utility model discloses a landfill leachate is handled to the mode that biological method and materialization method combined together, and the product water rate of recovery is high, and process flow is short.
Description
Technical Field
The utility model relates to a waste water treatment equipment especially relates to a landfill leachate integrates processing apparatus.
Background
With the rapid development of urbanization, the improvement of the living standard of residents and the richness of catering structures and quantity in China, the yield of domestic garbage is increased day by day, and in the garbage treatment process, the generation of percolate can not be avoided no matter sanitary landfill or incineration treatment is carried out. The landfill leachate is sewage seeped from garbage due to fermentation, rain wash, surface water and underground water immersion in the garbage stacking and landfill processes, is generally blackish brown liquid with foul smell, and is very difficult to treat due to the fact that the landfill leachate contains a large amount of various toxic and harmful substances such as suspended matters, organic matters, inorganic salts, metal ions and the like and the concentration of partial pollutants is high, a special and large-scale landfill leachate treatment mechanism needs to be built, but the cost of civil engineering and treatment processes is high, the process flow is long, and the landfill leachate is not suitable for medium and small sized leachate treatment.
Disclosure of Invention
An object of the utility model is to provide a landfill leachate integrates processing apparatus, through the mode that biological method and materialization method combined together to handle landfill leachate, the product water rate of recovery is high, and process flow is short.
The utility model discloses a realize like this:
an integrated treatment device for landfill leachate comprises a biochemical treatment component, a forward osmosis treatment component and a sludge treatment component; the biochemical treatment component comprises an anaerobic tank, a denitrification tank, a nitrification tank and a biochemical water production tank, the forward osmosis treatment component comprises a biochemical water production pump, a forward osmosis device, a drawing liquid regeneration device, a concentrated liquid tank, a concentrated liquid pump, a water production tank and a water production pump, and the sludge treatment component comprises a sludge concentration tank, a sludge delivery pump and a sludge dewatering machine; the anaerobic tank, the denitrification tank, the nitrification tank, the biochemical water production pump, the forward osmosis device and the drawing liquid regeneration device are sequentially connected to form a main treatment pipeline; a sludge outlet of the nitrification tank is sequentially connected with a sludge concentration tank, a sludge delivery pump and a sludge dewatering machine, and a liquid output end of the sludge dewatering machine is connected to the anaerobic tank to form a sludge dewatering branch; the first output end of the forward osmosis device is reversely connected to the biochemical water production tank to form a clear liquid circulation branch; the second output end of the forward osmosis device is sequentially connected with the concentrated solution tank and the concentrated solution pump to form a concentrated solution discharge branch; the first output end of the draw solution regeneration device is reversely connected to the forward osmosis device to form a draw solution backflow branch; the second output end of the drawing liquid regenerating device is sequentially connected with a water production tank and a water production pump to form a water production branch.
The nitrification tank is internally provided with an ultrafiltration device, and the output end of the ultrafiltration device is connected to the input end of the biochemical water production tank.
The ultrafiltration device is immersed ultrafiltration or tubular ultrafiltration.
The biochemical water production tank is provided with an acid adding inlet.
The sludge dewatering machine is provided with a flocculating agent inlet.
The sludge dewatering machine is a centrifugal dewatering machine or a stacked screw dewatering machine.
The forward osmosis device comprises a filter, a circulating pump and a forward osmosis membrane, the filter, the circulating pump and the forward osmosis membrane are sequentially connected, and an inlet of the filter is connected to an outlet of the biochemical water production pump.
The liquid absorption and regeneration device comprises a reverse osmosis membrane, an intersegmental booster pump, a high-pressure pump and a water inlet filter, wherein the water inlet filter, the high-pressure pump, the intersegmental booster pump and the reverse osmosis membrane are sequentially connected, and an inlet of the water inlet filter is connected to an outlet of a forward osmosis membrane of the forward osmosis device.
The reverse osmosis membrane is a sea fresh membrane element, and the forward osmosis membrane is a polyamide membrane element.
The biochemical treatment component, the forward osmosis treatment component and the sludge treatment component are integrated in the container.
Compared with the prior art, the utility model, following beneficial effect has:
1. the utility model discloses owing to adopted just permeating treatment process, can assign the treatment effect under the operating condition of low energy consumption, economic nature is good.
2. The utility model discloses an integrate the design of container formula, the collection can reduce the civil engineering cost, reduces to take up an area of, has good mobility simultaneously, uses in a flexible way.
The utility model discloses a biochemical treatment subassembly realizes biochemical method treatment landfill leachate to combine just permeating treatment subassembly and sludge treatment subassembly to realize physicochemical method treatment landfill leachate, just permeating device's the product water rate of recovery can be up to more than 80%, improve the product water rate of recovery of whole device greatly, can compare prior art's sewage treatment mode and improve 10-15%, the short and low cost of process flow is applicable to middle-size and small-size filtration liquid and handles.
Drawings
Fig. 1 is the utility model discloses landfill leachate integrates processing apparatus's schematic structure diagram.
In the figure, 1 an anaerobic tank, 2 a denitrification tank, 3 a nitrification tank, 4 an ultrafiltration device, 5 a biochemical water production tank, 6 a biochemical water production pump, 7 a forward osmosis device, 8 a drawing liquid regeneration device, 9 a sludge concentration tank, 10 a sludge delivery pump, 11 a sludge dewatering machine, 12 a concentrated liquid pump, 13 a concentrated liquid tank, 14 a water production tank and 15 a water production pump.
Detailed Description
The invention will be further explained with reference to the drawings and the specific embodiments.
Referring to fig. 1, the direction of the arrow indicates the flowing direction of the sewage, sludge and other materials in the pipeline. An integrated treatment device for landfill leachate comprises a biochemical treatment component, a forward osmosis treatment component and a sludge treatment component; the biochemical treatment component comprises an anaerobic tank 1, a denitrification tank 2, a nitrification tank 3 and a biochemical water production tank 5, the forward osmosis treatment component comprises a biochemical water production pump 6, a forward osmosis device 7, a drawing liquid regeneration device 8, a concentrated liquid tank 12, a concentrated liquid pump 13, a water production tank 14 and a water production pump 15, and the sludge treatment component comprises a sludge concentration tank 9, a sludge delivery pump 10 and a sludge dewatering machine 11; the anaerobic tank 1, the denitrification tank 2, the nitrification tank 3, the biochemical water production tank 5, the biochemical water production pump 6, the forward osmosis device 7 and the drawn liquid regeneration device 8 are sequentially connected through pipelines to form a main treatment pipeline, and the garbage percolate flows through the main treatment pipeline; a sludge outlet of the nitrification tank 3 is sequentially connected with a sludge concentration tank 9, a sludge delivery pump 10 and a sludge dewatering machine 11 through pipelines, a liquid output end of the sludge dewatering machine 11 is connected to the anaerobic tank 1 through a pipeline to form a sludge dewatering branch, sludge in the nitrification tank 3 is input into the sludge dewatering branch for concentration and dewatering, and discharged sludge and supernatant liquid returned to the anaerobic tank 1 are formed after concentration and dewatering; a first output end of the forward osmosis device 7 is reversely connected to the biochemical water production tank 5 through a pipeline to form a clear liquid circulating branch, and clear liquid filtered by the forward osmosis device 7 can be returned to the biochemical water production tank 5 for recycling; a second output end of the forward osmosis device 7 is sequentially connected with a concentrated solution tank 12 and a concentrated solution pump 13 through pipelines to form a concentrated solution discharge branch for periodically discharging concentrated solution; a first output end of the draw solution regeneration device 8 is reversely connected to the forward osmosis device 7 through a pipeline to form a draw solution backflow branch, and the draw solution concentrated and regenerated by the draw solution regeneration device 8 flows back to the forward osmosis device 7 to be reused; the second output end of the drawing liquid regenerating device 8 is sequentially connected with a water production tank 14 and a water production pump 15 through a pipeline to form a water production branch, and clear liquid generated after the concentration and regeneration of the drawing liquid regenerating device 8 can be collected and discharged through the water production tank 14.
The nitrification tank 3 is internally provided with an ultrafiltration device 4, the output end of the ultrafiltration device 4 is connected to the input end of the biochemical water production tank 5 through a pipeline, and preferably, the ultrafiltration device 4 is immersed ultrafiltration or tubular ultrafiltration for improving the treatment capacity of the nitrification tank 3.
The biochemical water production tank 5 is provided with an acid adding inlet, and the pH value of leachate in the biochemical water production tank 5 can be adjusted by adding acid according to the treatment requirement of actual landfill leachate.
The sludge dewatering machine 11 is provided with a flocculating agent inlet, and the shape of dewatered sludge particles is increased by adding a flocculating agent. Preferably, the sludge dewatering machine 11 may be a centrifugal dewatering machine or a stacked screw dewatering machine of the prior art.
Just osmotic device 7 include the filter, circulating pump and forward osmosis membrane, the filter, circulating pump and forward osmosis membrane connect gradually, the entry linkage of filter is to the export of biochemical product water pump 6, be used for filtering the impurity in the 6 output sewage of biochemical product water pump, the rethread circulating pump improves the velocity of flow of sewage, then get into the forward osmosis membrane subassembly, utilize the forward osmosis membrane under the drive of semipermeable membrane both sides osmotic pressure difference, water is by the natural phenomenon of the high one side of one side flow direction that osmotic pressure is low, water gets into one side of the high absorption liquid of osmotic pressure, reach the sewage condensation.
Draw liquid regenerating unit 8 include reverse osmosis membrane, intersegmental booster pump, high-pressure pump, the filter of intaking, the high-pressure pump, intersegmental booster pump and reverse osmosis membrane connect gradually, the entry linkage of the filter of intaking to the export of the positive osmotic membrane of positive osmotic device 7, the liquid of drawing of positive osmotic device 7 output filters impurity through the filter of intaking, then get into reverse osmosis membrane after drawing liquid pressure through high-pressure pump and intersegmental booster pump increase, utilize the high pressure to press water backward to the side of producing water, thereby reach the concentrated liquid effect of drawing, accomplish the regeneration of the liquid of drawing.
Preferably, the reverse osmosis membrane can adopt a sea fresh membrane element in the prior art, and the forward osmosis membrane can adopt a polyamide membrane element.
The biochemical treatment component, the forward osmosis treatment component and the sludge treatment component are integrated in the container, and can also be integrated in a special carriage, so that the civil engineering cost can be reduced, the occupied area can be reduced, the mobile treatment capacity is realized, the flexibility is high, and the treatment requirement of medium and small sized landfill leachate can be met.
The utility model discloses a theory of operation is: garbage leachate enters an anaerobic tank 1 to complete anaerobic reaction through anaerobic microorganisms to remove organic matters in water, aged sludge generated after treatment is periodically discharged to a sludge dewatering machine 11 for dewatering, sewage enters a denitrification tank 2 for denitrification, nitrite generated by nitrification is converted into nitrogen to be removed from ammonia nitrogen in the leachate, aged sludge generated after treatment is periodically discharged, sewage enters a nitrification tank 3 for nitrification to convert the ammonia nitrogen in the leachate into nitrite, the sewage is filtered by an immersed ultrafiltration device 4, and clear liquid is sent to a biochemical product water tank 5 for temporary storage; then, clear liquid in the biochemical water production tank 5 enters a forward osmosis device 7 through a biochemical water production pump 6, the sewage concentration effect is achieved through the osmosis effect of the forward osmosis membrane and the drawing liquid, the concentrated liquid is periodically discharged to a concentrated liquid tank 12, and the drawing liquid enters a drawing liquid regeneration device 8. The penetrating fluid enters a drawing fluid regeneration device 8 for concentration and regeneration after being filtered by a forward osmosis membrane of the forward osmosis device 7, the drawing fluid concentrated and regenerated by the drawing fluid regeneration device 8 flows back to the forward osmosis device 7 to continue to participate in production, and the produced water of the drawing fluid regeneration device 8 enters a produced water tank 14 and is sent out by a produced water pump 15; concentrated solution in the nitrification tank 3 is periodically discharged into a sludge concentration tank 9, enters a sludge dewatering machine 11 through a sludge delivery pump 10 for dewatering to form sludge and supernatant, the supernatant flows back to the anaerobic tank 1, and the sludge is discharged to a designated place; the clear liquid in the forward osmosis device 7 circulates to the biochemical water production tank 5 and enters the forward osmosis device 7 again through the biochemical water production pump 6; the concentrate in the forward osmosis device 7 is periodically discharged into a concentrate tank 12 and is sent to a designated place through a concentrate pump 13.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the present invention, therefore, any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention should be included in the scope of the present invention.
Claims (10)
1. The utility model provides a landfill leachate integrates processing apparatus which characterized by: comprises a biochemical treatment component, a forward osmosis treatment component and a sludge treatment component; the biochemical treatment component comprises an anaerobic tank (1), a denitrification tank (2), a nitrification tank (3) and a biochemical water production tank (5), the forward osmosis treatment component comprises a biochemical water production pump (6), a forward osmosis device (7), a drawing liquid regeneration device (8), a concentrated liquid tank (12), a concentrated liquid pump (13), a water production tank (14) and a water production pump (15), and the sludge treatment component comprises a sludge concentration tank (9), a sludge delivery pump (10) and a sludge dewatering machine (11); the anaerobic tank (1), the denitrification tank (2), the nitrification tank (3), the biochemical water production tank (5), the biochemical water production pump (6), the forward osmosis device (7) and the drawing liquid regeneration device (8) are sequentially connected to form a main treatment pipeline; a sludge outlet of the nitrification tank (3) is sequentially connected with a sludge concentration tank (9), a sludge delivery pump (10) and a sludge dewatering machine (11), and a liquid output end of the sludge dewatering machine (11) is connected to the anaerobic tank (1) to form a sludge dewatering branch; a first output end of the forward osmosis device (7) is reversely connected to the biochemical water production tank (5) to form a clear liquid circulation branch; the second output end of the forward osmosis device (7) is sequentially connected with a concentrated solution tank (12) and a concentrated solution pump (13) to form a concentrated solution discharge branch; a first output end of the draw solution regeneration device (8) is reversely connected to the forward osmosis device (7) to form a draw solution reflux branch; the second output end of the drawing liquid regeneration device (8) is sequentially connected with a water production tank (14) and a water production pump (15) to form a water production branch.
2. The integrated landfill leachate treatment device of claim 1, wherein: an ultrafiltration device (4) is arranged in the nitrification tank (3), and the output end of the ultrafiltration device (4) is connected to the input end of the biochemical water production tank (5).
3. The integrated landfill leachate treatment device according to claim 2, wherein: the ultrafiltration device (4) is immersed ultrafiltration or tubular ultrafiltration.
4. The integrated landfill leachate treatment device of claim 1, wherein: an acid adding inlet is arranged on the biochemical water production tank (5).
5. The integrated landfill leachate treatment device of claim 1, wherein: and a flocculating agent inlet is arranged on the sludge dewatering machine (11).
6. The integrated landfill leachate treatment device according to claim 1 or 5, wherein: the sludge dewatering machine (11) is a centrifugal dewatering machine or a stacked screw dewatering machine.
7. The integrated landfill leachate treatment device of claim 1, wherein: the forward osmosis device (7) comprises a filter, a circulating pump and a forward osmosis membrane, the filter, the circulating pump and the forward osmosis membrane are sequentially connected, and an inlet of the filter is connected to an outlet of the biochemical water production pump (6).
8. The integrated landfill leachate treatment device of claim 1, wherein: the absorption liquid regeneration device (8) comprises a reverse osmosis membrane, an intersegmental booster pump, a high-pressure pump and a water inlet filter, wherein the water inlet filter, the high-pressure pump, the intersegmental booster pump and the reverse osmosis membrane are sequentially connected, and an inlet of the water inlet filter is connected to an outlet of a forward osmosis membrane of the forward osmosis device (7).
9. The integrated landfill leachate treatment device according to claim 8, wherein: the reverse osmosis membrane is a sea fresh membrane element, and the forward osmosis membrane is a polyamide membrane element.
10. The integrated landfill leachate treatment device of claim 1, wherein: the biochemical treatment component, the forward osmosis treatment component and the sludge treatment component are integrated in the container.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021615894.2U CN213327194U (en) | 2020-08-06 | 2020-08-06 | Landfill leachate integrates processing apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021615894.2U CN213327194U (en) | 2020-08-06 | 2020-08-06 | Landfill leachate integrates processing apparatus |
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| Publication Number | Publication Date |
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| CN213327194U true CN213327194U (en) | 2021-06-01 |
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| CN202021615894.2U Active CN213327194U (en) | 2020-08-06 | 2020-08-06 | Landfill leachate integrates processing apparatus |
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