CN216039157U

CN216039157U - Landfill leachate super-concentrated liquid curing equipment

Info

Publication number: CN216039157U
Application number: CN202122204603.1U
Authority: CN
Inventors: 吴学钦; 周茂钟
Original assignee: Fuzhou Kehuang Ecological Environmental Protection Technology Co ltd
Current assignee: Fuzhou Kehuang Ecological Environmental Protection Technology Co ltd
Priority date: 2021-09-13
Filing date: 2021-09-13
Publication date: 2022-03-15
Anticipated expiration: 2031-09-13

Abstract

The utility model discloses a landfill leachate super-concentrated liquid curing device which comprises a coagulation tank, an adjusting tank, a denitrification tank, a nitrification tank, a sedimentation tank, an ultrafiltration reactor, a reverse osmosis water treatment device, a dryer and a carbonization furnace, wherein the coagulation tank, the adjusting tank, the denitrification tank, the nitrification tank, the sedimentation tank, the ultrafiltration reactor and the reverse osmosis water treatment device are sequentially connected through a water pipe, a backflow system is arranged between the denitrification tank and the nitrification tank, an aeration device is arranged in the nitrification tank, the coagulation tank and the sedimentation tank are connected with the dryer, and the dryer is connected with the carbonization furnace.

Description

Landfill leachate super-concentrated liquid curing equipment

Technical Field

The utility model relates to the technical field of garbage treatment, in particular to a device for solidifying super-concentrated liquid of garbage leachate.

Background

The garbage percolation concentrated solution is a product obtained by concentrating garbage fermentation liquor in a garbage pool after membrane filtration. The concentrated solution accounts for about 30% of the total weight of the stock solution. The method concentrate backward flow landfill yard of handling at present mixes repeated treatment with the landfill leachate of new production, and along with the increase of time, landfill leachate's concentration can be higher and higher in fact, and membrane filtration can be more and more difficult, and discharge water yield up to standard can constantly reduce, and treatment cost can constantly increase. The current method for deeply treating the concentrated solution at home comprises the following steps: the method can be used for treating the landfill leachate for concentration, but the investment equipment of fixed assets is complex, repeated treatment is carried out, the energy consumption is high, no additional value is provided, and governments and enterprises can not bear the treatment. In view of the current situation of the concentration treatment of the landfill leachate at present, by using the experience of other industries for reference, different production processes are adopted, the investment is low, the effect is fast, the landfill leachate concentrated solution can be thoroughly solved and reasonably utilized, the waste is changed into the valuable, and the waste is turned into the benefit.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a device for solidifying a super-concentrated liquid of landfill leachate so as to solve the technical problem.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a landfill leachate hyperconcentration liquid curing equipment, is including coagulating basin, equalizing basin, denitrification pond, nitration pond, sedimentation tank, ultrafiltration reactor, reverse osmosis water treatment ware, drying-machine, retort, fertilizer collecting box, coagulating basin, equalizing basin, denitrification pond, nitration pond, sedimentation tank, ultrafiltration reactor, reverse osmosis water treatment ware have connected gradually water pipe one, water pipe two, water pipe three, water pipe four, water pipe five, water pipe six on the coagulating basin lateral wall, are equipped with the drain pipe on the reverse osmosis water treatment ware lateral wall, and coagulating basin and sedimentation tank are connected with water pipe seven with the drying-machine respectively, and drying-machine and retort are connected with the pay-off area, and retort and fertilizer collecting box are connected with the conveying pipe.

Preferably, the denitrification tank and the nitrification tank are provided with return pipes, the return pipes are provided with return pumps, and the bottom of the nitrification tank is provided with an aeration device.

Preferably, a water pump is arranged on the fifth water pipe, and a pressure pump is arranged on the sixth water pipe.

Preferably, a throttle valve is arranged on the water pipe seven.

Preferably, a stirrer is arranged in the dryer.

Compared with the prior art, the utility model has the beneficial effects that: a reflux pipe is arranged between the denitrification tank and the nitrification tank, a reflux pump is arranged on the reflux pipe to realize the reflux of the nitrification tank, the content of nitrate nitrogen in the nitrification tank can be reduced, nitrate nitrogen is provided for the denitrification in the denitrification tank, nitrogen is better removed, an aeration device is added in the nitrification tank, the dissolved oxygen in the nitrification tank is kept under the condition that oxygen is consumed by the continuous oxidation of microorganisms, so that the nitrification tank can better remove BOD, a pressure pump is added on a water pipe six to provide pressure for percolate so that a reverse osmosis water processor can work to enable the percolate to be filtered to reach the discharge standard, a throttle valve is arranged on a water pipe seven to control the amount of the sludge entering a dryer, a stirrer is arranged in the dryer to stir up the dried sludge to be beneficial to carbonization, and the sludge is finally changed into organic fertilizer after the carbonization of the carbonization furnace and can be reused, the landfill leachate is solidified into the organic fertilizer, the treatment problem of the landfill leachate is solved, the landfill leachate can be reused, and the method is green and environment-friendly.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, 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 embodiment.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a water inlet pipe; 2. a coagulation tank; 3. a first water pipe; 4. a regulating tank; 5. a water pipe II; 6. a denitrification tank; 7. a return pipe; 8. a reflux pump; 9. a water pipe III; 10. a nitrification tank; 11. an aeration device; 12. a fourth water pipe; 13. a sedimentation tank; 14. a water pump; 15. a fifth water pipe; 16. an ultrafiltration reactor; 17. a pressure pump; 18. a sixth water pipe; 19. a reverse osmosis water treatment device; 20. a drain pipe; 21. a water pipe seven; 22. a throttle valve; 23. a dryer; 24. a stirrer; 25. a feed belt; 26. a carbonization furnace; 27. a feed pipe; 28. organic fertilizer collecting box.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, the present invention provides a technical solution: the utility model provides a landfill leachate super concentrated liquid solidification equipment, including coagulating basin 2, equalizing basin 4, denitrification tank 6, nitrify pond 10, sedimentation tank 13, ultrafiltration reactor 16, reverse osmosis water treatment ware 19, drying-machine 23, retort 26, fertilizer collecting box 28, coagulating basin 2, equalizing basin 4, denitrification tank 6, nitrification tank 10, sedimentation tank 13, ultrafiltration reactor 16, reverse osmosis water treatment ware 19 connects gradually water pipe 3, water pipe two 5, water pipe three 9, water pipe four 12, water pipe five 15, water pipe six 18, be equipped with inlet tube 1 on the coagulating basin 2 lateral wall, be equipped with drain pipe 20 on the reverse osmosis water treatment ware 19 lateral wall, coagulating basin 2 and sedimentation tank 13 are connected with water pipe seven 21 with drying-machine 23 respectively, drying-machine 23 and retort 26 are connected with pay-off area 25, retort 26 is connected with pay-off pipe 27 with fertilizer collecting box 28.

Specifically, denitrification pond 6 and nitrification pond 10 are equipped with back flow pipe 7, be equipped with backwash pump 8 on the back flow pipe 7, realize the backward flow of nitrification pond 10, can reduce the nitrate nitrogen content in the nitrification pond 10, can provide nitrate nitrogen for the denitrification in the denitrification pond 6 again, better removal nitrogen, nitrification pond 10 bottom is equipped with aeration equipment 11, keep the dissolved oxygen volume in the nitrification pond 10 under the condition that the continuous oxidation of microorganism consumes oxygen, make nitrification pond 10 can be better get rid of BOD.

Specifically, a water pump 14 is arranged on the fifth water pipe 15, so that percolate can enter an ultrafiltration reactor 16 for filtration, and a pressure pump 17 is arranged on the sixth water pipe 18, so that pressure is provided for the percolate, and a reverse osmosis water treatment device 19 can work to complete filtration of the percolate so that the percolate reaches the discharge standard.

Specifically, the water pipe seven 21 is provided with a throttle valve 22 which can control the amount of sludge flowing into the dryer 23 so as to keep the amount of sludge in the dryer 23 at a certain level.

Specifically, a stirrer 24 is provided in the dryer 23 to crush the dewatered sludge and to facilitate the sludge to enter the carbonization furnace 26 for carbonization.

One specific application example of this embodiment is:

when the device is used, leachate enters a coagulation tank 2 from a water inlet pipe 1, a coagulant is added into the coagulation tank 2 to enable the leachate to generate precipitation, precipitated sludge flows into a dryer 23 through a water pipe seven 21 under the control of a throttle valve 22, the leachate enters an adjusting tank 4 through a water pipe one 3 to enable the pH of the leachate to be reduced, the leachate enters a denitrification tank 6 through a water pipe two 5 to remove partial BOD and nitrogen, the leachate enters a nitrification tank 10 through a water pipe three 9, an aeration device 11 at the bottom of the nitrification tank 10 enables the nitrification tank 10 to keep the dissolved oxygen amount and remove BOD, the nitrification tank 10 returns to the denitrification tank 6 under the action of a reflux pump 8 through a reflux pipe 7 to reduce the nitrate nitrogen in the nitrification tank 10 and increase the nitrate nitrogen in the denitrification tank 6, the denitrification tank 6 is further denitrified, the leachate flows into a sedimentation tank 13 through a water pipe four 12, the sludge precipitated at the bottom of the sedimentation tank 13 flows into the dryer 23 through the water pipe seven 21 under the control of the throttle valve 22, percolate five 15 gets into ultrafiltration reactor 16 under the effect of water pump 14 and filters, percolate six 18 passes through the pressure of water pipe under the effect of force (forcing) pump 17 and gets into reverse osmosis water treatment ware 19 and filters, discharge the percolate that purifies through drain pipe 20 at last, stir the bits of broken glass through agitator 24 after the mud in the drying-machine 23 is dried and send retort 26 in through pay-off area 25, carry fertilizer collecting box 28 through pay-off pipe 27 after the mud carbonization, the fertilizer can also be retrieved and recycled, accomplish landfill leachate's solidification, green.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referred device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "disposed," "connected," "secured," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it would be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the claims and their equivalents.

Claims

1. The utility model provides a landfill leachate hyperconcentration liquid curing equipment, includes coagulating basin (2), equalizing basin (4), denitrification pond (6), nitrifies pond (10), sedimentation tank (13), ultrafiltration reactor (16), reverse osmosis water treatment ware (19), drying-machine (23), retort (26), fertilizer collecting box (28), its characterized in that: coagulating basin (2), equalizing basin (4), denitrification pond (6), nitrification pond (10), sedimentation tank (13), ultrafiltration reactor (16), reverse osmosis water treatment ware (19) have connected gradually water pipe one (3), water pipe two (5), water pipe three (9), water pipe four (12), water pipe five (15), water pipe six (18), be equipped with inlet tube (1) on coagulating basin (2) lateral wall, be equipped with drain pipe (20) on reverse osmosis water treatment ware (19) lateral wall, coagulating basin (2) and sedimentation tank (13) are connected with water pipe seven (21) with drying-machine (23) respectively, drying-machine (23) and retort (26) are connected with pay-off area (25), retort (26) are connected with pay-off pipe (27) with fertilizer collecting box (28).

2. The landfill leachate super concentrated solution solidification equipment according to claim 1, wherein: the denitrification tank (6) and the nitrification tank (10) are provided with return pipes (7), the return pipes (7) are provided with return pumps (8), and the bottom of the nitrification tank (10) is provided with an aeration device (11).

3. The landfill leachate super concentrated solution solidification equipment according to claim 1, wherein: and a water pump (14) is arranged on the fifth water pipe (15), and a pressure pump (17) is arranged on the sixth water pipe (18).

4. The landfill leachate super concentrated solution solidification equipment according to claim 1, wherein: and a throttle valve (22) is arranged on the water pipe seven (21).

5. The landfill leachate super concentrated solution solidification equipment according to claim 1, wherein: a stirrer (24) is arranged in the dryer (23).