CN218089273U

CN218089273U - System for treating landfill leachate

Info

Publication number: CN218089273U
Application number: CN202222399860.XU
Authority: CN
Inventors: 张淑媚
Original assignee: Guangdong Sanchuan Environmental Engineering Co ltd
Current assignee: Guangdong Sanchuan Environmental Engineering Co ltd
Priority date: 2022-09-09
Filing date: 2022-09-09
Publication date: 2022-12-20
Anticipated expiration: 2032-09-09

Abstract

The utility model discloses a system for handle landfill leachate, include the preliminary sedimentation pond through the pipe connection, flocculation reaction tank and biomembrane reaction tank, the bottom in preliminary sedimentation pond is equipped with the underframe, the bottom of underframe is equipped with a plurality of evenly distributed's filtration pore, the fixed polymer filtration membrane that is equipped with on the inner wall of underframe, elevating gear is connected to the periphery of underframe, flocculation reaction tank connects water pipe three, water pump two is connected to the other end of water pipe three, the bottom of flocculating agent storage jar is connected to the other end of water pump two, be equipped with agitating unit in the flocculation reaction tank, flocculation reaction tank's bottom is equipped with the impurity export, the fixed solenoid valve that is equipped with in impurity exit, be equipped with a plurality of detachable filter membrane subassemblies in the biomembrane reaction tank, the both sides of filter membrane subassembly are equipped with washing unit. The utility model discloses can carry out a lot of to landfill leachate and handle the purification, make its steady operation, discharge up to standard, be convenient for clear away filterable impurity moreover, simple structure, area is little.

Description

System for treating landfill leachate

Technical Field

The utility model relates to a refuse treatment technical field specifically is a system for handle landfill leachate.

Background

The landfill leachate is high-concentration organic wastewater which is formed by deducting the saturated water holding capacity of garbage and a soil covering layer from water contained in the garbage in a garbage landfill, rain, snow and water entering the landfill and other water and passing through the garbage layer and the soil covering layer. Landfill leachate has the characteristics different from general municipal sewage: high BOD5 and COD concentration, high metal content, large water quality and water quantity change, high ammonia nitrogen content, imbalance of microorganism nutrient element proportion and the like, and can cause serious environmental pollution if directly discharged into the environment without treatment. For the purpose of protecting the environment, it is essential to treat the leachate.

The treatment method of the landfill leachate comprises a physical chemical method and a biological method. Materialization treatment does not receive the influence of water quality water yield change, and it is more stable to go out water quality, and treatment cost is higher, is not suitable for the processing of large water volume landfill leachate, and the water quality of leaving of landfill leachate also can not be guaranteed completely to solitary biological method, consequently the utility model provides a system for processing landfill leachate.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome above technical defect, provide a system for handle landfill leachate.

In order to solve the above problem, the technical scheme of the utility model is that: the utility model provides a system for refuse disposal filtration liquid, includes through pipe connection's preliminary sedimentation pond, flocculation reaction tank and biomembrane reaction tank, the bottom in preliminary sedimentation pond is equipped with the underframe, the bottom of underframe is equipped with a plurality of evenly distributed's filtration pore, the fixed polymeric filter that is equipped with on the inner wall of underframe, elevating gear is connected to the periphery of underframe, flocculation reaction tank connects water pipe three, water pump two is connected to the other end of water pipe three, the bottom of flocculating agent storage jar is connected to the other end of water pump two, be equipped with agitating unit in the flocculation reaction tank, flocculation reaction tank's bottom is equipped with the impurity export, the fixed solenoid valve that is equipped with in impurity export, be equipped with a plurality of detachable filter membrane subassemblies in the biomembrane reaction tank, the both sides of filter membrane subassembly are equipped with washing unit.

As an improvement, elevating gear includes four elevator motor, four the setting of elevator motor two bisymmetry is in the both sides on preliminary sedimentation pond top, with two of one side be equipped with an axis of rotation between the elevator motor, the fixed runner that is equipped with a plurality of evenly distributed in middle part of axis of rotation, the middle part winding of runner is connected with the chain, the side of underframe is connected to the other end of chain, can mention the underframe to be convenient for clear away the rubbish that preliminary sedimentation pond bottom settled.

As an improvement, a first water pump is arranged between the pre-settling tank and the flocculation reaction tank, two ends of the first water pump are respectively connected with a first water pipe and a second water pipe, the other end of the first water pipe is located in the middle of the pre-settling tank, the other end of the second water pipe is connected with the flocculation reaction tank, and the landfill leachate in the pre-settling tank can be pumped into the flocculation reaction tank.

As an improvement, agitating unit includes agitator motor, agitator motor is fixed to be set up at the top middle part of flocculation retort, agitator motor's bottom is equipped with the (mixing) shaft, the bottom of (mixing) shaft extends to flocculation retort's bottom, fixed a plurality of stirring vane that is equipped with on the (mixing) shaft in the flocculation retort can stir landfill leachate and flocculating solution in the flocculation retort for the mixing speed of the two makes the impurity in the landfill leachate flocculate fast.

As an improvement, the middle lower part of the flocculation reaction tank is connected with a water pipe four, the other end of the water pipe four is connected with one end of the biological membrane reaction tank in an inclined and downward mode, and an electric control valve is fixedly arranged at one end, close to the flocculation reaction tank, of the water pipe four, so that whether leachate in the flocculation reaction tank enters the biological membrane reaction tank or not can be controlled.

As an improvement, the flushing device comprises a plurality of flushing heads, each two of the flushing heads are in a group and correspond to the number of the filter membrane assemblies, the flushing heads are fixedly arranged above the side of the filter membrane assemblies, the bottom of the flushing head is inclined towards the top of the filter membrane component, namely the opening end, and the top end of the flushing head is connected with a plurality of uniformly distributed flushing pipes, so that the filter membrane component can be flushed, the filter membrane component is prevented from being blocked, and the service life of the filter membrane component is prolonged.

Compared with the prior art, the utility model the advantage lie in: the bottom frame and the lifting device are arranged, so that garbage precipitated at the bottom end of the pre-settling tank can be conveniently removed; by arranging the stirring device, the garbage leachate and the flocculating solution in the flocculation reaction tank can be stirred, the mixing speed of the garbage leachate and the flocculating solution is increased, and impurities in the garbage leachate are quickly flocculated; through setting up washing unit, can wash the filter membrane subassembly, prevent that the filter membrane subassembly from blockking up, prolong its live time. The utility model discloses can carry out a lot of to landfill leachate and handle the purification, make its steady operation, discharge up to standard, be convenient for clear away filterable impurity moreover, simple structure, area is little.

Drawings

Fig. 1 is a structural view of the present invention.

Fig. 2 is a top view structural diagram of the lifting device of the present invention.

As shown in the figure: 1. a preliminary sedimentation tank; 2. a flocculation reaction tank; 3. a biofilm reaction tank; 4. a bottom frame; 5. a lifting motor; 6. a rotating shaft; 7. a rotating wheel; 8. chain locking; 9. a first water pump; 10. a first water pipe; 11. a water pipe II; 12. a water pipe III; 13. a second water pump; 14. a flocculating agent storage tank; 15. a stirring motor; 16. a stirring shaft; 17. a stirring blade; 18. an impurity outlet; 19. an electromagnetic valve; 20. a fourth water pipe; 21. an electrically controlled valve; 22. a filter membrane assembly; 23. a water flushing head; 24. a flush tube.

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 some embodiments of the present invention, not all embodiments; based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Combine attached figure 1 and 2, a system for handle landfill leachate, include through pipe connection's preliminary sedimentation tank 1, flocculation reaction tank 2 and biomembrane reaction tank 3, the bottom of preliminary sedimentation tank 1 is equipped with underframe 4, the bottom of underframe 4 is equipped with a plurality of evenly distributed's filtration pore, the fixed polymer filtration membrane that is equipped with on the inner wall of underframe 4, elevating gear is connected to the periphery of underframe 4, flocculation reaction tank 2 connects water pipe three 12, water pump two 13 is connected to the other end of water pipe three 12, the bottom of flocculating agent storage jar 14 is connected to the other end of water pump two 13, be equipped with agitating unit in the flocculation reaction tank 2, the bottom of flocculation reaction tank 2 is equipped with impurity export 18, the fixed solenoid valve 19 that is equipped with in impurity export 18 department, be equipped with a plurality of detachable filter membrane subassembly 22 of group in the biomembrane reaction tank 3, the both sides of filter membrane subassembly 22 are equipped with washing unit.

Combine accompanying drawings 1 and 2, elevating gear includes four elevator motor 5, four the setting of elevator motor 5 two bisymmetry is in the both sides on 1 top in preliminary sedimentation tank, with two of one side be equipped with an axis of rotation 6 between the elevator motor 5, the fixed runner 7 that is equipped with a plurality of evenly distributed in middle part of axis of rotation 6, the middle part winding of runner 7 is connected with the chain 8, the side of underframe 4 is connected to the other end of chain 8.

With reference to the attached drawing 1, a first water pump 9 is arranged between the preliminary sedimentation tank 1 and the flocculation reaction tank 2, two ends of the first water pump 9 are respectively connected with a first water pipe 10 and a second water pipe 11, the other end of the first water pipe 10 is located in the middle of the preliminary sedimentation tank 1, and the other end of the second water pipe 11 is connected with the flocculation reaction tank 2.

With reference to the attached drawing 1, the stirring device comprises a stirring motor 15, the stirring motor 15 is fixedly arranged in the middle of the top end of the flocculation reaction tank 2, a stirring shaft 16 is arranged at the bottom end of the stirring motor 15, the bottom end of the stirring shaft 16 extends to the bottom of the flocculation reaction tank 2, and a plurality of stirring blades 17 are fixedly arranged on the stirring shaft 16 in the flocculation reaction tank 2.

With reference to fig. 1, the middle lower part of the flocculation reaction tank 2 is connected with a water pipe four 20, the other end of the water pipe four 20 is connected with one end of the biological membrane reaction tank 3 in an inclined and downward manner, and an electric control valve 21 is fixedly arranged at one end of the water pipe four 20 close to the flocculation reaction tank 2.

With reference to fig. 1, the flushing device comprises a plurality of flushing heads 23, wherein every two flushing heads 23 are in a group and correspond to the number of the filter membrane assemblies 22, the flushing heads 23 are fixedly arranged above the sides of the filter membrane assemblies 22, the bottom ends of the flushing heads 23 are inclined towards the tops of the filter membrane assemblies 22, and the top ends of the flushing heads 23 are connected with a plurality of flushing pipes 24 which are uniformly distributed.

In specific use, firstly, the landfill leachate is placed in the pre-settling tank 1 for a period of time and gradually precipitated to the bottom end of the pre-settling tank 1, namely the top end of the bottom frame 4 and the top end of the polymeric membrane, after impurities insoluble in water in the landfill leachate are basically precipitated, a first water pump 9 is started, and the clear landfill leachate at the upper middle part of the pre-settling tank 1 is pumped into the flocculation reaction tank 2 through a first water pipe 10 and a second water pipe 11; meanwhile, the second water pump 13 is automatically started, a proper amount of flocculant in the flocculant storage tank 14 is pumped into the flocculation reaction tank 2, then the first water pump 9 and the second water pump 13 automatically stop running, the first water pump 9 and the second water pump 13 can be self-locked, and then the stirring motor 15 is started, so that the stirring shaft 16 drives a plurality of stirring blades 17 to rotate at a constant speed in the flocculation reaction tank 2, the mixing speed of the landfill leachate and the flocculant is accelerated, and impurities in the landfill leachate are quickly flocculated and precipitated; after the landfill leachate in the flocculation reaction tank 2 is flocculated and precipitated, the electric control valve 21 is opened, so that the landfill leachate in the flocculation reaction tank 2 enters the biological membrane reaction tank 3 from the middle lower part of the tank through the water pipe four 20, and water with qualified quality is obtained after passing through the plurality of filter membrane assemblies 22. After the precipitated impurities in the pre-settling tank 1 are accumulated to a certain amount, starting the four lifting motors 5 to enable the two rotating shafts 6 to rotate reversely at the same time, winding a plurality of chains 8 on the rotating wheels 7, so that the bottom frame 4 moves upwards to the top end of the pre-settling tank 1, enabling the lifting motors 5 to be self-locked, enabling water in the bottom frame 4 to return to the pre-settling tank 1 through a polymer filter membrane, blocking the impurities by the polymer filter membrane, cleaning the impurities, starting the lifting motors 5 again to enable the two rotating shafts 6 to rotate reversely, loosening the chains 8 wound on the rotating wheels 7, and enabling the bottom frame 4 to fall back to the bottom end of the pre-settling tank 1; after the impurities in the flocculation reaction tank 2 are accumulated to a certain amount, opening the electromagnetic valve 19 to discharge the impurities through the impurity discharge port 18; when the biomembrane of the filter membrane component 22 blocks the filter membrane component 22 due to excessive impurities, the flushing pipe 24 and the high-pressure water source are connected, so that the high-pressure water flows through the flushing head 23 to flush the filter membrane component 22 from the top of the filter membrane component 22, and the service time of the filter membrane component 22 is prolonged.

It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various 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.

The present invention and the embodiments thereof have been described above, but the description is not limited thereto, and the embodiment shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should understand that they should not be limited to the embodiments described above, and that they can design the similar structure and embodiments without departing from the spirit of the invention.

Claims

1. A system for treating landfill leachate, which is characterized in that: including preliminary sedimentation tank (1), flocculation reaction tank (2) and biomembrane reaction tank (3) through the pipe connection, the bottom of preliminary sedimentation tank (1) is equipped with underframe (4), the bottom of underframe (4) is equipped with a plurality of evenly distributed's filtration pore, the fixed polymer filtration membrane that is equipped with on the inner wall of underframe (4), elevating gear is connected to the periphery of underframe (4), flocculation reaction tank (2) are connected three (12) of water pipe, two (13) of water pump are connected to the other end of three (12) of water pipe, the bottom of flocculating agent storage jar (14) is connected to the other end of two (13) of water pump, be equipped with agitating unit in flocculation reaction tank (2), the bottom of flocculation reaction tank (2) is equipped with impurity export (18), impurity export (18) department is fixed and is equipped with solenoid valve (19), be equipped with a plurality of detachable filter membrane subassembly (22) of group in biomembrane reaction tank (3), the both sides of filter membrane subassembly (22) are equipped with washing unit.

2. The system for treating landfill leachate of claim 1, wherein: elevating gear includes four elevator motor (5), four elevator motor (5) two bisymmetry's setting is in the both sides on preliminary sedimentation pond (1) top, with two of one side be equipped with an axis of rotation (6) between elevator motor (5), the fixed runner (7) that are equipped with a plurality of evenly distributed in middle part of axis of rotation (6), the middle part winding of runner (7) is connected with chain (8), the side of underframe (4) is connected to the other end of chain (8).

3. The system for treating landfill leachate of claim 1, wherein: be equipped with water pump (9) between preliminary sedimentation tank (1) and flocculation retort (2), water pipe (10) and water pipe two (11) are connected respectively to the both ends of water pump (9), the other end of water pipe one (10) is located the middle part of preliminary sedimentation tank (1), flocculation retort (2) are connected to the other end of water pipe two (11).

4. The system for treating landfill leachate of claim 1, wherein: agitating unit includes agitator motor (15), agitator motor (15) are fixed to be set up at the top middle part of flocculation retort (2), the bottom of agitator motor (15) is equipped with (mixing) shaft (16), the bottom of (mixing) shaft (16) extends to the bottom of flocculation retort (2), fixed a plurality of stirring vane (17) that is equipped with on (mixing) shaft (16) in flocculation retort (2).

5. The system for treating landfill leachate of claim 1, wherein: the middle lower part of the flocculation reaction tank (2) is connected with a water pipe four (20), the other end of the water pipe four (20) is obliquely and downwards connected with one end of the biological membrane reaction tank (3), and one end of the water pipe four (20) close to the flocculation reaction tank (2) is fixedly provided with an electric control valve (21).

6. The system for treating landfill leachate according to claim 1, wherein: the flushing device comprises a plurality of flushing heads (23) and a plurality of flushing heads (23), wherein every two flushing heads (23) are in a group and correspond to the number of the filter membrane assemblies (22), the flushing heads (23) are fixedly arranged above the sides of the filter membrane assemblies (22), the bottom ends of the flushing heads (23) are inclined towards the tops of the filter membrane assemblies (22) through openings, and the top ends of the flushing heads (23) are connected with a plurality of uniformly distributed flushing pipes (24).