CN111115759A - Landfill leachate concentrate processing apparatus - Google Patents

Abstract

The invention relates to the technical field of sewage treatment equipment, and discloses a landfill leachate concentrated solution treatment device which comprises a stock solution tank, a first nanofiltration component, a first reverse osmosis component, a second nanofiltration component, a second reverse osmosis component, a third reverse osmosis component, a first recovery tank and a second recovery tank, wherein the stock solution tank is connected with the first nanofiltration component; the invention has the characteristics of good treatment effect and low cost.

Description

Landfill leachate concentrate processing apparatus

Technical Field

The invention relates to the technical field of sewage treatment equipment, in particular to a landfill leachate concentrated solution treatment device.

Background

With the increase of the number of cities and population in China, the urban garbage also increases sharply, and the situation of the garbage enclosed city is very severe. At present, the garbage treatment mainly comprises landfill and incineration, compared with a landfill method, an incineration method can effectively reduce the garbage capacity, has the advantages of land saving and difficult generation of pollution such as sewage infiltration, and the generated heat value can be used for heat supply, power generation and the like for reutilization. However, the treatment of the landfill leachate is a technical problem in both landfill and incineration. The landfill leachate belongs to high-concentration organic wastewater difficult to degrade, is formed by deducting the saturated water holding capacity of garbage and a soil covering layer from the moisture and other moisture contained in the garbage in a landfill and passing through the garbage layer and the soil covering layer, and has the characteristics of complex components, high pollutant concentration, unbalanced biological nutrition proportion, high chromaticity, large odor and poor biodegradability, so the treatment of the landfill leachate always faces the technical problems of poor treatment effect and high cost.

Disclosure of Invention

In view of the above, the present invention provides a landfill leachate concentrate treatment apparatus.

In order to solve the technical problems, the technical scheme of the invention is as follows: the utility model provides a landfill leachate concentrate processing apparatus, includes the stoste pond, its characterized in that: the device comprises a raw liquid pool, a first nanofiltration component, a second reverse osmosis component, a third reverse osmosis component, a first recovery tank and a second recovery tank, wherein a first three-way ball valve, a first conveying pump and a first high-pressure pump are arranged between the raw liquid pool and the first nanofiltration component; a second high-pressure pump is arranged between the first nanofiltration component and the first reverse osmosis component, the input end of the second high-pressure pump is connected with the first nanofiltration component, and the output end of the second high-pressure pump is connected with the first reverse osmosis component; a third high-pressure pump is arranged between the first nanofiltration component and the second nanofiltration component, the input end of the third high-pressure pump is connected with the first nanofiltration component, and the output end of the third high-pressure pump is connected with the second nanofiltration component; a fourth high-pressure pump is arranged between the first reverse osmosis component and the second reverse osmosis component, the input end of the fourth high-pressure pump is connected with the first reverse osmosis component, and the output end of the fourth high-pressure pump is connected with the second reverse osmosis component; a fifth high-pressure pump is arranged between the second nanofiltration assembly and the second reverse osmosis assembly, the input end of the fifth high-pressure pump is connected with the second nanofiltration assembly, and the output end of the fifth high-pressure pump is connected with the second reverse osmosis assembly; a sixth high-pressure pump is arranged between the second nanofiltration assembly and the third reverse osmosis assembly, the input end of the sixth high-pressure pump is connected with the second nanofiltration assembly, and the output end of the sixth high-pressure pump is connected with the third reverse osmosis assembly; a seventh high-pressure pump is arranged between the second reverse osmosis component and the third reverse osmosis component, the input end of the seventh high-pressure pump is connected with the second reverse osmosis component, and the output end of the seventh high-pressure pump is connected with the third reverse osmosis component; a second three-way ball valve is arranged between the third reverse osmosis component and the first recovery tank, one port of the second three-way ball valve is connected with the third reverse osmosis component, and the other port of the second three-way ball valve is connected with the first recovery tank; a second delivery pump is arranged between the second three-way ball valve and the first three-way ball valve, the port of the second three-way ball valve, which is not connected with the third reverse osmosis assembly and the first recovery tank, is connected with the input end of the second delivery pump, and the port of the first three-way ball valve, which is not connected with the stock solution tank and the first nanofiltration assembly, is connected with the output end of the second delivery pump; the second recovery tank is respectively connected with the first reverse osmosis component, the second reverse osmosis component and the third reverse osmosis component.

Preferably, the first nanofiltration assembly comprises a first nanofiltration box body, a first nanofiltration membrane is arranged in the middle of the first nanofiltration box body, the first nanofiltration membrane divides the first nanofiltration box body into a first sewage part and a first water purification part, a first water inlet is formed in the side wall of the first nanofiltration box body close to the first sewage part, the first water inlet is connected with the output end of a first high-pressure pump, a first water outlet is formed in the side wall of the first nanofiltration box body close to the first water purification part, the first water outlet is connected with the input end of a second high-pressure pump, a first motor is arranged on the outer wall of the top of the first nanofiltration box body close to the first sewage part, a first stirring shaft vertically penetrating into the first nanofiltration box body downwards is connected to a main shaft of the first motor, a first stirring rod is arranged on the shaft wall of the first stirring shaft, a first sewage draining pump is arranged on the inner wall of the bottom of the first box body close to the first sewage part, a first sewage draining port is arranged on the outer wall, the blowdown end of first sewage disposal pump is connected with first drain outlet, and first drain outlet is connected with the input of third high-pressure pump, leans on the first water purification portion side to be equipped with first drainage pump on the bottom inner wall of straining the box, and first drainage pump is connected with first delivery port.

Preferably, still be equipped with first medicine storage tank on the first top outer wall of straining the box of straining, be equipped with first medicine pump in the first medicine storage tank, all be equipped with first installation piece on the first top inner wall of straining the box and the bottom inner wall of straining, first installation piece is the symmetry and sets up in the both sides of first nanofiltration membrane, all is equipped with first shower nozzle on the first installation piece, and first shower nozzle is the slope of spraying portion and sets up towards the direction of pressing close to first nanofiltration membrane, and the end of intaking of first shower nozzle all is connected with first medicine pump.

Preferably, the first reverse osmosis component comprises a first reverse osmosis box body, a first reverse osmosis membrane is arranged in the middle of the first reverse osmosis box body, the first reverse osmosis membrane divides the first reverse osmosis box body into a second sewage part and a second water purifying part, a second water inlet is formed in the side wall of the first reverse osmosis box body close to the second sewage part, the second water inlet is connected with the output end of the second high-pressure pump, a second water outlet is formed in the side wall of the first reverse osmosis box body close to the second water purifying part, the second water outlet is connected with the second recovery box, a second sewage discharge pump is arranged on the inner wall of the bottom of the first reverse osmosis box body close to the second sewage part, a second sewage discharge outlet is formed in the outer wall of the bottom, the sewage discharge end of the second sewage discharge pump is connected with the second sewage discharge outlet, the second sewage discharge outlet is connected with the input end of the fourth high-pressure pump, and a second reverse osmosis water discharge pump is arranged on the, the second drain pump is connected with the second delivery port, be equipped with second medicine storage tank on the top outer wall of first reverse osmosis box, be equipped with the second in the second medicine storage tank and go out the medicine pump, all be equipped with second installation piece on the top inner wall of first reverse osmosis box and the bottom inner wall, second installation piece is the symmetry and sets up in the both sides of first reverse osmosis membrane, all be equipped with the second shower nozzle on the second installation piece, the second shower nozzle is the slope of spraying portion and sets up towards the direction of pressing close to first reverse osmosis membrane, the end of intaking of second shower nozzle all is connected with the second medicine pump.

Preferably, the second nanofiltration component comprises a second nanofiltration box body, a second nanofiltration membrane is arranged in the middle of the second nanofiltration box body, the second nanofiltration membrane divides the second nanofiltration box body into a third sewage part and a third water purification part, a third water inlet is formed in the side wall of the second nanofiltration box body close to the third sewage part, the third water inlet is connected with the output end of a third high-pressure pump, a third water outlet is formed in the side wall of the second nanofiltration box body close to the third water purification part, the third water outlet is connected with the input end of a fifth high-pressure pump, a second motor is arranged on the outer wall of the top of the second nanofiltration box body close to the third sewage part, a second stirring shaft vertically penetrating into the second nanofiltration box body downwards is connected to a main shaft of the second motor, a second stirring rod is arranged on the shaft wall of the second stirring shaft, a third sewage pump is arranged on the inner wall of the bottom of the second nanofiltration box body close to the third sewage part, a third sewage outlet is arranged on the outer wall of the bottom, the blowdown end of the third dredge pump is connected with a third blowdown port, the third blowdown port is connected with the input end of the sixth high-pressure pump, a third draining pump is arranged on the inner wall of the bottom of the second nanofiltration box body close to the third water purifying portion side, and the third draining pump is connected with a third water outlet.

Preferably, the second is strained and still is equipped with the third medicine storage tank on the top outer wall of box is strained to the second, is equipped with the third in the third medicine storage tank and goes out the medicine pump, and the second is strained and all is equipped with the third installation piece on the top inner wall of box and the bottom inner wall of box is strained to the second, and the third installation piece is the symmetry and sets up in the both sides that the second was received the filter membrane, all is equipped with the third shower nozzle on the third installation piece, and the third shower nozzle is the slope of spraying portion and sets up towards the direction of pressing close to the second and receiving the filter membrane, and the end of intaking of third shower nozzle.

Preferably, the second reverse osmosis component comprises a second reverse osmosis box body, a second reverse osmosis membrane is arranged in the middle of the second reverse osmosis box body, the second reverse osmosis membrane divides the second reverse osmosis box body into a fourth sewage portion and a fourth water purification portion, a fourth water inlet and a fifth water inlet are formed in the side wall of the second reverse osmosis box body close to the fourth sewage portion, the fourth water inlet is connected with the output end of a fourth high-pressure pump, the fifth water inlet is connected with the output end of a fifth high-pressure pump, a fourth water outlet is formed in the side wall of the second reverse osmosis box body close to the fourth water purification portion, the fourth water outlet is connected with a second recovery box, a fourth sewage discharge pump is arranged on the inner wall of the bottom of the second reverse osmosis box body close to the fourth sewage portion, a fourth sewage discharge port is formed in the outer wall of the bottom, the sewage discharge end of the fourth sewage discharge pump is connected with the fourth sewage discharge port, and the fourth sewage discharge port is, be equipped with the fourth drain pump on the bottom inner wall of the second reverse osmosis box by fourth water purification portion side, the fourth drain pump is connected with the fourth delivery port, be equipped with fourth medicine storage tank on the top outer wall of second reverse osmosis box, be equipped with fourth play medicine pump in the fourth medicine storage tank, all be equipped with fourth installation piece on the top inner wall of second reverse osmosis box and the bottom inner wall, fourth installation piece is the symmetry and sets up in the both sides of second reverse osmosis membrane, all be equipped with the fourth shower nozzle on the fourth installation piece, the fourth shower nozzle is the slope of spraying portion and sets up towards the direction of pressing close to second reverse osmosis membrane, the end of intaking of fourth shower nozzle all is connected with fourth play medicine pump.

Preferably, the third reverse osmosis component comprises a third reverse osmosis box body, a third reverse osmosis membrane is arranged in the middle of the third reverse osmosis box body, the third reverse osmosis membrane divides the third reverse osmosis box body into a fifth sewage part and a fifth water purification part, a sixth water inlet and a seventh water inlet are formed in the side wall of the third reverse osmosis box body close to the fifth sewage part, the sixth water inlet is connected with the output end of a sixth high-pressure pump, the seventh water inlet is connected with the output end of a seventh high-pressure pump, a fifth water outlet is formed in the side wall of the third reverse osmosis box body close to the fifth water purification part, the fifth water outlet is connected with a second recovery box, a fifth sewage discharge pump is arranged on the inner wall of the bottom of the third reverse osmosis box body close to the fifth sewage part, a fifth sewage discharge port is formed in the outer wall of the bottom, the sewage discharge end of the fifth sewage discharge pump is connected with the fifth sewage discharge port, and the fifth sewage discharge port is, be equipped with the fifth drain pump on the bottom inner wall of the third reverse osmosis box that leans on fifth water purification portion side, the fifth drain pump is connected with the fifth delivery port, be equipped with fifth medicine storage tank on the top outer wall of third reverse osmosis box, be equipped with the fifth medicine pump in the fifth medicine storage tank, all be equipped with the fifth installation piece on the top inner wall of third reverse osmosis box and the bottom inner wall, the fifth installation piece is the symmetry and sets up in the both sides of third reverse osmosis membrane, all be equipped with the fifth shower nozzle on the fifth installation piece, the fifth shower nozzle is the slope of spraying portion and sets up towards the direction of pressing close to third reverse osmosis membrane, the end of intaking of fifth shower nozzle all is connected with the fifth medicine pump.

Compared with the prior art, the invention has the advantages that:

according to the invention, a multistage filtering frame is constructed by arranging a first nanofiltration component, a first reverse osmosis component, a second nanofiltration component, a second reverse osmosis component and a third reverse osmosis component, concentrated garbage percolate introduced from a stock solution pool is filtered, so that the liquid finally entering a first recovery tank is concentrated liquid with the organic matter content of more than 99 percent, the concentrated liquid can be made into products such as fertilizer, industrial ammonium salt and the like through treatment modes such as membrane treatment, precipitation and the like, and is recycled, and the liquid finally entering a second recovery tank is fresh water without organic matters or with extremely low organic matter content, so that the treatment effect is good; meanwhile, the arranged first three-way ball valve and the second three-way ball valve enable the garbage leachate concentrated solution to be subjected to multiple circulating filtration in the first nanofiltration component, the first reverse osmosis component, the second nanofiltration component, the second reverse osmosis component and the third reverse osmosis component, so that the final treatment effect is ensured, and the cost is reduced without adding chemicals such as flocculating agents in the treatment process.

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 composition diagram of the present invention;

fig. 2 is a schematic view of the structure of a first nanofiltration module according to the present invention;

FIG. 3 is a schematic diagram of a first reverse osmosis module according to the present invention;

fig. 4 is a schematic view of the structure of a second nanofiltration assembly according to the present invention;

FIG. 5 is a schematic diagram of a second reverse osmosis module according to the present invention;

fig. 6 is a schematic structural view of a third reverse osmosis module according to the present invention.

Reference numerals: 1. a stock solution tank; 2. a first nanofiltration assembly; 200. a first nanofiltration tank body; 201. a first nanofiltration membrane; 202. a first wastewater portion; 203. a first water purification section; 204. a first water inlet; 205. a first water outlet; 206. a first motor; 207. a first stirring shaft; 208. a first stirring rod; 209. a first sewage discharge pump; 210. a first drain port; 211. a first drainage pump; 212. a first drug storage tank; 213. a first medicine discharging pump; 214. a first mounting block; 215. a first nozzle; 3. a first reverse osmosis module; 300. a first reverse osmosis tank body; 301. a first reverse osmosis membrane; 302. a first wastewater portion; 303. a first water purification section; 304. a second water inlet; 305. a second water outlet; 306. a second dredge pump; 307. a second sewage draining outlet; 308. a second drain pump; 309. a second drug storage tank; 310. a second medicine discharging pump; 311. a second mounting block; 312. a second nozzle; 4. a second nanofiltration assembly; 400. a second nanofiltration tank body; 401. a second nanofiltration membrane; 402. a third wastewater portion; 403. a third water purification part; 404. a third water inlet; 405. a third water outlet; 406. a second motor; 407. a second stirring shaft; 408. a second stirring rod; 409. a third dredge pump; 410. a third sewage draining outlet; 411. a third drain pump; 412. a third drug storage tank; 413. a third medicine discharging pump; 414. a third mounting block; 415. a third spray head; 5. a second reverse osmosis module; 500. a second reverse osmosis tank body; 501. a second reverse osmosis membrane; 502. a fourth wastewater portion; 503. a fourth water purification part; 504. a fourth water inlet; 505. a fifth water inlet; 506. a fourth water outlet; 507. a fourth dredge pump; 508. a fourth sewage draining outlet; 509. a fourth drain pump; 510. a fourth medicine storage tank; 511. a fourth medicine discharging pump; 512. a fourth mounting block; 513. a fourth nozzle; 6. a third reverse osmosis module; 600. a third reverse osmosis tank body; 601. a third reverse osmosis membrane; 602. a fifth wastewater portion; 603. a fifth water purification part; 604. a sixth water inlet; 605. a seventh water inlet; 606. a fifth water outlet; 607. a fifth dredge pump; 608. a fifth sewage draining outlet; 609. a fifth drain pump; 610. a fifth medicine storage tank; 611. a fifth medicine discharging pump; 612. a fifth mounting block; 613. a fifth spray head; 7. a first recovery tank; 8. a second recovery tank; 9. a first three-way ball valve; 10. a first delivery pump; 11. a first high pressure pump; 12. a second high pressure pump; 13. a third high pressure pump; 14. a fourth high pressure pump; 15. a fifth high pressure pump; 16. a sixth high pressure pump; 17. a seventh high pressure pump; 18. a second three-way ball valve; 19. a second delivery pump.

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 to 6, the present invention provides a landfill leachate concentrated solution treatment apparatus, including a raw solution tank 1, a first nanofiltration assembly 2, a first reverse osmosis assembly 3, a second nanofiltration assembly 4, a second reverse osmosis assembly 5, a third reverse osmosis assembly 6, a first recovery tank 7 and a second recovery tank 8, wherein the landfill leachate concentrated solution to be treated is stored in the raw solution tank 1, the first nanofiltration assembly 2 includes a first nanofiltration tank 200, a first nanofiltration membrane 201 is disposed in the middle of the first nanofiltration tank 200, two ends of the first nanofiltration membrane 201 are respectively and fixedly connected to the top inner wall and the bottom inner wall of the first nanofiltration tank 200, the first nanofiltration membrane 201 can intercept 50 to 60% of organic dissolved salts in the landfill leachate concentrated solution, the first nanofiltration membrane 201 divides the first tank 200 into a first sewage portion 302202 and a first purified water portion 303203, a first water inlet 204 is disposed on the side wall of the first nanofiltration tank 200 near a first sewage portion 302202, a first drain pump 211 is arranged on the inner wall of the bottom of the first nanofiltration tank body 200 close to the first water purification part 303203, the first drain pump 211 is connected with the first water outlet 205, the first drain pump 211 can drain the liquid in the first water purification part 303203 outwards from the first water outlet 205, the inner wall of the bottom of the first nanofiltration tank body 200 close to the first sewage part 302202 is provided with a first drain pump 209, the outer wall of the bottom is provided with a first drain outlet 210, the drain end of the first drain pump 209 is connected with the first drain outlet 210, the first drain pump 209 can drain the liquid in the first sewage part 302202 outwards from the first drain outlet 210, the outer wall of the top of the first nanofiltration tank body 200 close to the first sewage part 302202 is provided with a first motor 206, the main shaft of the first motor 206 is connected with a first stirring shaft 207 vertically penetrating into the first nanofiltration tank body 200 downwards, the shaft wall of the first stirring shaft 207 is provided with a first stirring rod 208, the first motor 206 drives the first stirring shaft 207 to rotate after starting to work, the first stirring rod 208 is operated to stir, so that the concentrated landfill leachate in the first sewage portion 302202 can be better filtered by the first nanofiltration membrane 201; a first medicine storage tank 212 is further arranged on the outer wall of the top of the first nanofiltration tank body 200, a cleaning agent for cleaning the first nanofiltration membrane 201 is filled in the first medicine storage tank 212, and an alkaline cleaning agent is selected as the cleaning agent because the first nanofiltration membrane 201 mainly filters organic salt ions; be equipped with first medicine pump 213 in first medicine storage tank 212, all be equipped with first installation piece 214 on the top inner wall of first nanofiltration box 200 and the bottom inner wall, first installation piece 214 is the symmetry and sets up in the both sides of first nanofiltration membrane 201, all be equipped with first shower nozzle 215 on first installation piece 214, first shower nozzle 215 is the slope of spraying portion and sets up towards the direction of pressing close to first nanofiltration membrane 201, first shower nozzle 215's the end of intaking all is connected with first medicine pump 213, first medicine pump 213 can pour into first shower nozzle 215 into the cleaner in the first medicine storage tank 212 into, first shower nozzle 215 sprays the cleaner of pouring into on first nanofiltration membrane 201, carry out the washing to first nanofiltration membrane 201 with this, guarantee first nanofiltration membrane 201's life and treatment effect.

A first three-way ball valve 9, a first delivery pump 10 and a first high-pressure pump 11 are arranged between the raw liquid pool 1 and the first nanofiltration component 2, one port of the first three-way ball valve 9 is connected with the raw liquid pool 1, the other port of the first three-way ball valve is connected with the input end of the first delivery pump 10, the output end of the first delivery pump 10 is connected with the input end of the first high-pressure pump 11, and the output end of the first high-pressure pump 11 is connected with the first water inlet 204.

The first reverse osmosis module 3 comprises a first reverse osmosis box 300, a first reverse osmosis membrane 301 is arranged in the middle of the first reverse osmosis box 300, two ends of the first reverse osmosis membrane 301 are respectively and fixedly connected to the inner wall of the top and the inner wall of the bottom wall of the first reverse osmosis box 300, the first reverse osmosis membrane 301 can intercept up to 99% of organic dissolved salts in the garbage permeate concentrate, the liquid treated by the first reverse osmosis membrane 301 is pure water or fresh water and can be directly used, the first reverse osmosis box 300 is divided into a second sewage part 402 and a second water purifying part by the first reverse osmosis membrane 301, a second water inlet 304 is arranged on the side wall of the first reverse osmosis box 300 close to the second sewage part 402, a second water outlet 305 is arranged on the side wall of the first reverse osmosis box 300 close to the second water purifying part, and a second drainage pump 308 is arranged on the inner wall of the bottom of the first reverse osmosis box 300 close to the second water purifying part, the second water discharge pump 308 is connected with the second water outlet 305, the second water discharge pump 308 can discharge the liquid in the second water purification part from the second water outlet 305 to the outside, the inner wall of the bottom of the first reverse osmosis box 300 close to the second sewage part 402 is provided with a second sewage discharge pump 306, the outer wall of the bottom is provided with a second sewage discharge outlet 307, the sewage discharge end of the second sewage discharge pump 306 is connected with the second sewage discharge outlet 307, the second sewage discharge pump 306 can discharge the liquid in the second sewage part 402 from the second sewage discharge outlet 307 to the outside, the outer wall of the top of the first reverse osmosis box 300 is provided with a second medicine storage tank 309, the second medicine storage tank 309 is internally provided with a cleaning agent for cleaning the first reverse osmosis membrane 301, and the first reverse osmosis membrane 301 mainly filters organic salt ions, so that 0.2% NaCLO + 0.1% NaOH is selected as the cleaning agent; be equipped with second out medicine pump 310 in second medicine storage tank 309, all be equipped with second installation piece 311 on the top inner wall of first reverse osmosis box 300 and the bottom inner wall, second installation piece 311 is the symmetry and sets up in the both sides of first reverse osmosis membrane 301, all be equipped with second shower nozzle 312 on the second installation piece 311, second shower nozzle 312 is the slope of spraying portion and sets up towards the direction of pressing close to first reverse osmosis membrane 301, the end of intaking of second shower nozzle 312 all is connected with second out medicine pump 310, second out medicine pump 310 can pour into the cleaner in the second medicine storage tank 309 into in second shower nozzle 312, second shower nozzle 312 sprays the cleaner of pouring into on first reverse osmosis membrane 301, with this washing to first reverse osmosis membrane 301 carries out, guarantee first reverse osmosis membrane 301's life and treatment effect.

A second high-pressure pump 12 is arranged between the first nanofiltration component 2 and the first reverse osmosis component 3, the input end of the second high-pressure pump 12 is connected with the first water outlet 205, and the output end is connected with the second water inlet 304.

The second nanofiltration assembly 4 comprises a second nanofiltration tank body 400, a second nanofiltration membrane 401 is arranged in the middle of the second nanofiltration tank body 400, two ends of the second nanofiltration membrane 401 are respectively and fixedly connected to the top inner wall and the bottom inner wall of the second nanofiltration tank body 400, and the second nanofiltration membrane 401 can intercept 70-80% of organic dissolved salts in the concentrated solution of the garbage permeate; the second nanofiltration membrane 401 divides the second nanofiltration tank 400 into a third sewage part and a third water purification part 403, a third water inlet 404 is arranged on the side wall of the second nanofiltration tank 400 close to the third sewage part, a third water outlet 405 is arranged on the side wall of the second nanofiltration tank 400 close to the third water purification part 403, a third drainage pump 411 is arranged on the inner wall of the bottom of the second nanofiltration tank 400 close to the third water purification part 403, the third drainage pump 411 is connected with the third water outlet 405, the third drainage pump 411 can drain the liquid in the third water purification part 403 from the third water outlet 405 to the outside, a third sewage pump 409 is arranged on the inner wall of the bottom of the second nanofiltration tank 400 close to the third sewage part, a third sewage outlet 410 is arranged on the outer wall of the bottom, the sewage discharge end of the third sewage pump 409 is connected with the third sewage outlet 410, the third sewage pump 409 can discharge the liquid in the third sewage part from the third sewage outlet 410 to the outside, a second motor 406 is arranged on the outer wall of the top of the second nanofiltration tank body 400 close to the third sewage part, a second stirring shaft 407 vertically penetrating into the second nanofiltration tank body 400 downwards is connected to a main shaft of the second motor 406, a second stirring rod 408 is arranged on the shaft wall of the second stirring shaft 407, and the second motor 406 drives the second stirring shaft 407 to rotate after starting to work, so that the second stirring rod 408 is stirred, and the garbage percolate concentrated solution in the third sewage part can be better filtered by the second nanofiltration membrane 401; a third medicine storage tank 412 is further arranged on the outer wall of the top of the second nanofiltration tank body 400, a cleaning agent for cleaning the second nanofiltration membrane 401 is filled in the third medicine storage tank 412, and an alkaline cleaning agent is selected as the cleaning agent because the second nanofiltration membrane 401 mainly filters organic salt ions; be equipped with third out medicine pump 413 in third storage tank 412, all be equipped with third installation piece 414 on the top inner wall of third nanofiltration box and the bottom inner wall, third installation piece 414 is the symmetry and sets up in the both sides of third nanofiltration membrane, all be equipped with third shower nozzle 415 on third installation piece 414, third shower nozzle 415 is the slope of spraying portion and sets up towards the direction of pressing close to the third nanofiltration membrane, the end of intaking of third shower nozzle 415 all is connected with third out medicine pump 413, third play medicine pump 413 can pour into the cleaner in third storage tank 412 into third shower nozzle 415 into, third shower nozzle 415 sprays the cleaner of pouring into on the third nanofiltration membrane, with this washing to the third nanofiltration membrane, guarantee the life and the treatment effect of third nanofiltration membrane.

A third high-pressure pump 13 is arranged between the first nanofiltration assembly 2 and the second nanofiltration assembly 4, the input end of the third high-pressure pump 13 is connected with the first sewage outlet 210, and the output end is connected with the third water inlet 404.

The second reverse osmosis module 5 comprises a second reverse osmosis box 500, a second reverse osmosis membrane 501 is arranged in the middle of the second reverse osmosis box 500, two ends of the second reverse osmosis membrane 501 are respectively and fixedly connected to the inner wall of the top and the inner wall of the bottom wall of the second reverse osmosis box 500, the second reverse osmosis membrane 501 can intercept up to 99% of organic dissolved salts in the garbage permeate concentrate, the liquid processed by the second reverse osmosis membrane 501 is pure water or fresh water and can be directly used, the second reverse osmosis box 500 is divided into a fourth sewage part 502 and a fourth water purifying part 503 by the second reverse osmosis membrane 501, a fourth water inlet 504 and a fifth water inlet 505 are arranged on the side wall of the second reverse osmosis box 500 close to the fourth sewage part 502, a fourth water outlet 503 is arranged on the side wall of the second reverse osmosis box 500 close to the fourth water purifying part 503, a fourth drainage pump 509 is arranged on the inner wall of the bottom of the second reverse osmosis box 500 close to the fourth water purifying part 503, the fourth drainage pump 509 is connected with the fourth water outlet 506, the fourth drainage pump 509 can discharge the liquid in the fourth water purification part 503 outwards from the fourth water outlet 506, a fourth sewage pump 507 is arranged on the inner wall of the bottom of the second reverse osmosis box 500 close to the fourth sewage part 502, a fourth sewage outlet 508 is arranged on the outer wall of the bottom, the sewage discharging end of the fourth sewage pump 507 is connected with the fourth sewage outlet 508, and the fourth sewage pump 507 can discharge the liquid in the fourth sewage part 502 outwards from the fourth sewage outlet 508; a fourth medicine storage tank 510 is arranged on the outer wall of the top of the second reverse osmosis box body 500, a cleaning agent for cleaning the second reverse osmosis membrane 501 is filled in the fourth medicine storage tank 510, and the second reverse osmosis membrane 501 mainly filters organic salt ions, so that 0.2% NaCLO + 0.1% NaOH is selected as the cleaning agent; be equipped with fourth medicine pump 511 in fourth medicine storage tank 510, all be equipped with fourth installation piece 512 on the top inner wall of second reverse osmosis box 500 and the bottom inner wall, fourth installation piece 512 is the symmetry and sets up in second reverse osmosis membrane 501's both sides, all be equipped with fourth shower nozzle 513 on the fourth installation piece 512, fourth shower nozzle 513 is the slope of spraying portion and sets up towards the direction of pressing close to second reverse osmosis membrane 501, the end of intaking of fourth shower nozzle 513 all is connected with fourth medicine pump 511, fourth medicine pump 511 can pour into the cleaner in fourth medicine storage tank 510 into in fourth shower nozzle 513, fourth shower nozzle 513 sprays the cleaner of pouring into on second reverse osmosis membrane 501, with this washing to second reverse osmosis membrane 501 carries out, guarantee second reverse osmosis membrane 501's life and treatment effect.

A fourth high-pressure pump 14 is arranged between the first reverse osmosis component 3 and the second reverse osmosis component 5, the input end of the fourth high-pressure pump 14 is connected with a second sewage draining outlet 307, the output end of the fourth high-pressure pump is connected with a fourth water inlet 504, a fifth high-pressure pump 15 is arranged between the second nanofiltration component 4 and the second reverse osmosis component 5, the input end of the fifth high-pressure pump 15 is connected with a third water outlet 405, and the output end of the fifth high-pressure pump is connected with a fifth water inlet 505.

The third reverse osmosis module 6 comprises a third reverse osmosis box 600, a third reverse osmosis membrane 601 is arranged in the middle of the third reverse osmosis box 600, two ends of the third reverse osmosis membrane 601 are respectively and fixedly connected to the inner wall of the top and the inner wall of the bottom wall of the third reverse osmosis box 600, the third reverse osmosis membrane 601 can intercept up to 99% of organic dissolved salts in the garbage permeate concentrate, the liquid treated by the third reverse osmosis membrane 601 is pure water or fresh water, the third reverse osmosis box 600 can be directly divided into a fifth sewage portion 602 and a fifth water purification portion 603 by using the third reverse osmosis membrane 601, a sixth water inlet 604 and a seventh water inlet 605 are arranged on the side wall of the third reverse osmosis box 600 close to the fifth sewage portion 602, a fifth water outlet 606 is arranged on the side wall of the third reverse osmosis box 600 close to the fifth water purification portion 603, a fifth drainage pump 609 is arranged on the inner wall of the bottom of the third reverse osmosis box 600 close to the fifth water purification portion 603, the fifth drainage pump 609 is connected with the fifth water outlet 606, the fifth drainage pump 609 can discharge the liquid in the fifth water purification part 603 outwards from the fifth water outlet 606, a fifth sewage pump 607 is arranged on the inner wall of the bottom of the third reverse osmosis box body 600 close to the fifth sewage part 602, a fifth sewage outlet 608 is arranged on the outer wall of the bottom, the sewage discharging end of the fifth sewage pump 607 is connected with the fifth sewage outlet 608, and the fifth sewage pump 607 can discharge the liquid in the fifth sewage part 602 outwards from the fifth sewage outlet 608; a fifth medicine storage tank 610 is arranged on the outer wall of the top of the third reverse osmosis box 600, a cleaning agent for cleaning the third reverse osmosis membrane 601 is filled in the fifth medicine storage tank 610, because the third reverse osmosis membrane 601 mainly filters organic salt ions, 0.2% NaCLO + 0.1% NaOH is selected as the cleaning agent, a fifth medicine outlet pump 611 is arranged in the fifth medicine storage tank 610, fifth installation blocks 612 are arranged on the inner wall of the top and the inner wall of the bottom of the third reverse osmosis box 600, the fifth installation blocks 612 are symmetrically arranged on both sides of the third reverse osmosis membrane 601, fifth spray nozzles 613 are arranged on the fifth installation blocks 612, the spray parts of the fifth spray nozzles 613 are arranged in a direction approaching the third reverse osmosis membrane 601 in an inclined manner, the water inlet ends of the fifth spray nozzles 613 are connected with the fifth medicine outlet pump 611, the fifth medicine outlet pump 611 can inject the cleaning agent in the fifth medicine storage tank 610 into the fifth spray nozzles 613, and spray the injected cleaning agent on the third reverse osmosis membrane 601 by the fifth spray nozzles 613, therefore, the third reverse osmosis membrane 601 is cleaned, and the service life and the treatment effect of the third reverse osmosis membrane 601 are ensured.

A sixth high-pressure pump 16 is arranged between the second nanofiltration component 4 and the third reverse osmosis component 6, the input end of the sixth high-pressure pump 16 is connected with a third sewage outlet 410, the output end of the sixth high-pressure pump is connected with a sixth water inlet 604, a seventh high-pressure pump 17 is arranged between the second reverse osmosis component 5 and the third reverse osmosis component 6, the input end of the seventh high-pressure pump 17 is connected with a fourth sewage outlet 508, and the output end of the seventh high-pressure pump is connected with a seventh water inlet 605.

A second three-way ball valve 18 is arranged between the third reverse osmosis component 6 and the first recovery tank 7, one port of the second three-way ball valve 18 is connected with a fifth sewage draining outlet 608, the other port of the second three-way ball valve 18 is connected with the first recovery tank 7, a second conveying pump 19 is arranged between the second three-way ball valve 18 and the first three-way ball valve 9, the port of the second three-way ball valve 18, which is not connected with the third reverse osmosis component 6 and the first recovery tank 7, is connected with the input end of the second conveying pump 19, and the port of the first three-way ball valve 9, which is not connected with the stock solution tank 1 and the first nanofiltration component 2, is connected with the output end of the second conveying pump; the second recovery tank 8 is connected to the second water outlet 305, the fourth water outlet 506, and the fifth water outlet 606, respectively.

Example (b): the working process of the invention is as follows:

in the first step, the first three-way ball valve 9 is controlled to make the port of the first three-way ball valve 9 connected with the stock solution tank 1 and the first delivery pump 10 in a conducting state, the port connected with the second delivery pump 19 in a blocking state, the second three-way ball valve 18 is controlled to make the port of the second three-way ball valve 18 connected with the fifth sewage draining outlet 608 and the second delivery pump 19 in a conducting state, and the port connected with the first recovery tank 7 in a blocking state.

And secondly, controlling the first conveying pump 10 to pump a certain amount of the landfill leachate concentrated solution into the stock solution tank 1, injecting the pumped landfill leachate concentrated solution into the first high-pressure pump 11 by the first conveying pump 10, injecting the landfill leachate concentrated solution into the first nanofiltration tank 200 through the first water inlet 204 by the first high-pressure pump 11, providing pressure, and making the pressure of the first sewage part 302202 greater than that of the first water purifying part 303203, so that the landfill leachate concentrated solution is filtered by the first nanofiltration membrane 201, and simultaneously controlling the first motor 206 to start working, and making the first stirring rod 208 start stirring operation, so that the landfill leachate concentrated solution can be fully filtered by the first nanofiltration membrane 201.

Third, the percolate concentrate in the first water purification part 303203 filtered by the first nanofiltration membrane 201 is discharged from the first water outlet 205 by the first water discharge pump 211, injected into the second high pressure pump 12, injected into the first reverse osmosis chamber 300 by the second high pressure pump 12, and pressurized such that the pressure of the second sewage part 402 is higher than that of the second water purification part, thereby allowing the liquid to be filtered by the first reverse osmosis membrane 301, the percolate concentrate in the first sewage part 302202 filtered by the first nanofiltration membrane 201 is discharged from the first sewage outlet 210 by the first sewage pump 209, and injected into the third high pressure pump 13, and the liquid is injected into the second nanofiltration chamber 400 by the third water inlet 404 by the third high pressure pump 13, and pressurized such that the pressure of the third sewage part is higher than that of the third water purification part 403, thereby allowing the liquid to be filtered by the second nanofiltration membrane 401, and meanwhile, the second motor 406 is controlled to start working, the second stirring rod 408 starts stirring operation, and the liquid in the third sewage part can be fully filtered by the second nanofiltration membrane 401.

Fourthly, the liquid in the second water purification part filtered by the first reverse osmosis membrane 301 is discharged from the second water outlet 305 by the second drain pump 308, and is injected into the second recovery tank 8 for recovery, at this time, the liquid is pure water or fresh water, the garbage leachate concentrated solution in the second sewage part 402 filtered by the first reverse osmosis membrane 301 is discharged from the second sewage outlet 307 by the second sewage pump 306 and is injected into the fourth high-pressure pump 14, the fourth high-pressure pump 14 injects the liquid into the second reverse osmosis tank 500 by the fourth water inlet 504 and provides pressure, and the pressure of the fourth sewage part 502 is greater than the pressure of the fourth water purification part 503, so that the liquid is filtered by the second reverse osmosis membrane 501; the liquid in the third water purification part 403 filtered by the second nanofiltration membrane 401 is discharged from the third water outlet 405 by the third drain pump 411, and is injected into the fifth high-pressure pump 15, the fifth high-pressure pump 15 injects the liquid into the second reverse osmosis box 500 through the fifth water inlet 505, and provides pressure, making the pressure of the fourth sewage portion 502 greater than that of the fourth water purification portion 503, so that the liquid is filtered by the second reverse osmosis membrane 501, the liquid in the third sewage part filtered by the second nanofiltration membrane 401 is discharged from the third sewage outlet 410 by the third sewage pump 409 and is injected into the sixth high-pressure pump 16, the liquid is injected into the third reverse osmosis tank 600 by the sixth high-pressure pump 16 through the sixth water inlet 604, and provides a pressure to make the pressure of the fifth sewage portion 602 greater than the pressure of the fifth water purification portion 603, so that the liquid is filtered by the third reverse osmosis membrane 601.

Fifthly, discharging the liquid in the fourth water purification part 503 filtered by the second reverse osmosis membrane 501 from the fourth water outlet 506 by the fourth water discharge pump 509, injecting the liquid into the second recovery tank 8 for recovery, wherein the liquid is pure water or fresh water, discharging the liquid in the fourth sewage part 502 filtered by the second reverse osmosis membrane 501 from the fourth sewage discharge outlet 508 by the fourth sewage discharge pump 507, injecting the liquid into the seventh high-pressure pump 17, injecting the liquid into the third reverse osmosis tank 600 by the seventh high-pressure pump 17 from the seventh water inlet 605, and providing pressure to make the pressure of the fifth sewage part 602 greater than the pressure of the fifth water purification part 603, so that the liquid is filtered by the third reverse osmosis membrane 601; the liquid in the fifth water purification portion 603 filtered by the third reverse osmosis membrane 601 is discharged from the fifth water discharge port by the fifth water discharge pump 609, and is poured into the second recovery tank 8 for recovery, at this time, the liquid is pure water or fresh water, and the liquid in the fifth sewage portion 602 filtered by the third reverse osmosis membrane 601 is discharged from the fifth sewage discharge port 608 by the fifth sewage discharge pump 607, and is poured into the second three-way ball valve 18.

And sixthly, after the first delivery pump 10 pumps a certain amount of landfill leachate concentrated solution, controlling the first three-way ball valve 9 to enable the port, connected with the stock solution tank 1, of the first three-way ball valve 9 to be in a blocking state, and enabling the port, connected with the second delivery pump 19, of the first three-way ball valve 9 to be in a conducting state.

And step seven, controlling a second delivery pump 19 to work, injecting the landfill leachate concentrated solution entering the second three-way ball valve 18 into the first three-way ball valve 9, and then repeating the steps from the step two to the step five to perform a filtering cycle.

And eighthly, controlling the second three-way ball valve 18 to enable the port, connected with the fifth sewage discharge port 608 and the first recovery tank 7, of the second three-way ball valve 18 to be in a conduction state, and enabling the port, connected with the second delivery pump 19, of the second three-way ball valve 18 to be in a conduction state, and injecting the garbage percolate concentrated solution entering the second three-way ball valve 18 into the first recovery tank 7 for recycling, wherein at the moment, the liquid is concentrated solution with the organic matter content of more than 99 percent.

And a ninth step of controlling the first three-way ball valve 9, enabling the port of the first three-way ball valve 9 connected with the stock solution tank 1 and the first delivery pump 10 to be in a conducting state, enabling the port connected with the second delivery pump 19 to be in a blocking state, controlling the second three-way ball valve 18, enabling the port of the second three-way ball valve 18 connected with the fifth sewage draining outlet 608 and the second delivery pump 19 to be in a conducting state, enabling the port connected with the first recovery tank 7 to be in a blocking state, and then continuing to work.

The number of cycles of the present embodiment in actual use and the amount of the concentrate of landfill leachate in the raw liquid pool 1 pumped by the first transfer pump 10 may be selected according to actual circumstances.

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 those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to 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.

The above are only typical examples of the present invention, and besides, the present invention may have other embodiments, and all technical solutions formed by equivalent substitutions or equivalent transformations fall within the scope of the present invention as claimed.

Claims (8)

1. A landfill leachate concentrate processing apparatus, includes former liquid pond (1), its characterized in that: the device comprises a raw liquid pool (1), a first nanofiltration component (2), a first reverse osmosis component (3), a second nanofiltration component (4), a second reverse osmosis component (5), a third reverse osmosis component (6), a first recovery tank (7) and a second recovery tank (8), wherein a first three-way ball valve (9), a first conveying pump (10) and a first high-pressure pump (11) are arranged between the raw liquid pool (1) and the first nanofiltration component (2), one port of the first three-way ball valve (9) is connected with the raw liquid pool (1), the other port of the first three-way ball valve is connected with the input end of the first conveying pump (10), the output end of the first conveying pump (10) is connected with the input end of the first high-pressure pump (11), and the output end of the first high-pressure pump (11) is connected with the first nanofiltration component (2);

a second high-pressure pump (12) is arranged between the first nanofiltration component (2) and the first reverse osmosis component (3), the input end of the second high-pressure pump (12) is connected with the first nanofiltration component (2), and the output end is connected with the first reverse osmosis component (3);

a third high-pressure pump (13) is arranged between the first nanofiltration component (2) and the second nanofiltration component (4), the input end of the third high-pressure pump (13) is connected with the first nanofiltration component (2), and the output end is connected with the second nanofiltration component (4);

a fourth high-pressure pump (14) is arranged between the first reverse osmosis component (3) and the second reverse osmosis component (5), the input end of the fourth high-pressure pump (14) is connected with the first reverse osmosis component (3), and the output end of the fourth high-pressure pump is connected with the second reverse osmosis component (5);

a fifth high-pressure pump (15) is arranged between the second nanofiltration component (4) and the second reverse osmosis component (5), the input end of the fifth high-pressure pump (15) is connected with the second nanofiltration component (4), and the output end is connected with the second reverse osmosis component (5);

a sixth high-pressure pump (16) is arranged between the second nanofiltration component (4) and the third reverse osmosis component (6), the input end of the sixth high-pressure pump (16) is connected with the second nanofiltration component (4), and the output end is connected with the third reverse osmosis component (6);

a seventh high-pressure pump (17) is arranged between the second reverse osmosis component (5) and the third reverse osmosis component (6), the input end of the seventh high-pressure pump (17) is connected with the second reverse osmosis component (5), and the output end of the seventh high-pressure pump is connected with the third reverse osmosis component (6);

a second three-way ball valve (18) is arranged between the third reverse osmosis component (6) and the first recovery tank (7), one port of the second three-way ball valve (18) is connected with the third reverse osmosis component (6), and the other port is connected with the first recovery tank (7);

a second delivery pump (19) is arranged between the second three-way ball valve (18) and the first three-way ball valve (9), the port of the second three-way ball valve (18) which is not connected with the third reverse osmosis component (6) and the first recovery tank (7) is connected with the input end of the second delivery pump (19), and the port of the first three-way ball valve (9) which is not connected with the stock solution tank (1) and the first nanofiltration component (2) is connected with the output end of the second delivery pump (19); the second recovery box (8) is respectively connected with the first reverse osmosis component (3), the second reverse osmosis component (5) and the third reverse osmosis component (6).

2. A landfill leachate concentrate treatment plant according to claim 1, wherein: the first nanofiltration assembly (2) comprises a first nanofiltration box body (200), a first nanofiltration membrane (201) is arranged in the middle of the first nanofiltration box body (200), the first nanofiltration membrane (201) divides the first nanofiltration box body (200) into a first sewage part (302) (202) and a first water purification part (303) (203), a first water inlet (204) is formed in the side wall of the first nanofiltration box body (200) close to the first sewage part (302) (202), the first water inlet (204) is connected with the output end of a first high-pressure pump (11), a first water outlet (205) is formed in the side wall of the first nanofiltration box body (200) close to the first water purification part (303) (203), the first water outlet (205) is connected with the input end of a second high-pressure pump (12), a first motor (206) is arranged on the outer wall of the top of the first nanofiltration box body (200) close to the first sewage part (302) (202), and a vertical downward penetrating first nanofiltration box body (200) is connected to the main shaft of the first motor (206) Stirring axle (207), be equipped with first puddler (208) on the axle wall of first (207) stirring shaft, be equipped with first sewage pump (209) on the bottom inner wall of first nanofiltration box (200) by first sewage portion (302) (202), be equipped with first drain outlet (210) on the bottom outer wall, the blowdown end of first sewage pump (209) is connected with first drain outlet (210), first drain outlet (210) are connected with the input of third high-pressure pump (13), be equipped with first drain pump (211) on the bottom inner wall of first nanofiltration box (200) by first water purification portion (303) (203) side, first drain pump (211) are connected with first delivery port (205).

3. A landfill leachate concentrate treatment plant according to claim 2, wherein: still be equipped with first medicine storage tank (212) on the top outer wall of first case (200) of receiving nanofiltration, be equipped with first play medicine pump (213) in first medicine storage tank (212), all be equipped with first installation piece (214) on the top inner wall of first case (200) of receiving nanofiltration and the bottom inner wall, first installation piece (214) are the symmetry and set up in the both sides of first nanofiltration membrane (201), all be equipped with first shower nozzle (215) on first installation piece (214), first shower nozzle (215) are the slope of spraying portion and set up towards the direction of pressing close to first nanofiltration membrane (201), the end of intaking of first shower nozzle (215) all is connected with first play medicine pump (213).

4. A landfill leachate concentrate treatment plant according to claim 1, wherein: the first reverse osmosis component (3) comprises a first reverse osmosis box body (300), a first reverse osmosis membrane (301) is arranged in the middle of the first reverse osmosis box body (300), the first reverse osmosis membrane (301) divides the first reverse osmosis box body (300) into a second sewage part (402) and a second water purification part, a second water inlet (304) is formed in the side wall of the first reverse osmosis box body (300) close to the second sewage part (402), the second water inlet (304) is connected with the output end of a second high-pressure pump (12), a second water outlet (305) is formed in the side wall of the first reverse osmosis box body (300) close to the second water purification part, the second water outlet (305) is connected with a second recovery box (8), a second sewage discharge pump (306) is arranged on the inner bottom wall of the first reverse osmosis box body (300) close to the second sewage part (402), and a second sewage discharge outlet (307) is formed in the outer bottom wall, the sewage discharging end of the second sewage discharging pump (306) is connected with a second sewage discharging port (307), the second sewage discharging port (307) is connected with the input end of the fourth high-pressure pump (14), a second water discharging pump (308) is arranged on the inner wall of the bottom of the first reverse osmosis box body (300) close to the second water purifying part side, the second water discharging pump (308) is connected with a second water outlet (305), a second medicine storing tank (309) is arranged on the outer wall of the top of the first reverse osmosis box body (300), a second medicine discharging pump (310) is arranged in the second medicine storing tank (309), second mounting blocks (311) are arranged on the inner wall of the top and the inner wall of the bottom of the first reverse osmosis box body (300), the second mounting blocks (311) are symmetrically arranged on two sides of the first reverse osmosis membrane (301), second spray nozzles (312) are arranged on the second mounting blocks (311), and the second spray nozzles (312) are arranged towards the direction of the first reverse osmosis membrane (301) in an inclined mode, the water inlet ends of the second spray heads (312) are connected with a second medicine outlet pump (310).

5. A landfill leachate concentrate treatment plant according to claim 1, wherein: the second nanofiltration component (4) comprises a second nanofiltration box body (400), a second nanofiltration membrane (401) is arranged in the middle of the second nanofiltration box body (400), the second nanofiltration membrane (401) divides the second nanofiltration box body (400) into a third sewage part and a third water purification part (403), a third water inlet (404) is formed in the side wall of the second nanofiltration box body (400) close to the third sewage part, the third water inlet (404) is connected with the output end of a third high-pressure pump (13), a third water outlet (405) is formed in the side wall of the second nanofiltration box body (400) close to the third water purification part (403), the third water outlet (405) is connected with the input end of a fifth high-pressure pump (15), a second motor (406) is arranged on the outer wall of the top of the second box body (400) close to the third sewage part, a second nanofiltration shaft (407) is connected to a main shaft of the second motor (406) and vertically penetrates into the second nanofiltration box body (400) downwards, be equipped with second puddler (408) on the shaft wall of second (407) puddler, be equipped with third dredge pump (409) on the bottom inner wall of the second nanofiltration box (400) that leans on third sewage portion, be equipped with third drain (410) on the bottom outer wall, the blowdown end of third dredge pump (409) is connected with third drain (410), third drain (410) are connected with the input of sixth high-pressure pump (16), lean on the bottom inner wall of the second nanofiltration box (400) of third water purification portion (403) side to be equipped with third drain pump (411), third drain pump (411) are connected with third delivery port (405).

6. A landfill leachate concentrate treatment plant according to claim 5, wherein: still be equipped with third medicine storage tank (412) on the top outer wall of second nanofiltration box (400), be equipped with third out medicine pump (413) in third medicine storage tank (412), all be equipped with third installation piece (414) on the top inner wall of second nanofiltration box (400) and the bottom inner wall, third installation piece (414) are the symmetry and set up in the both sides of second nanofiltration membrane (401), all be equipped with third shower nozzle (415) on third installation piece (414), third shower nozzle (415) are the slope of spraying portion and set up towards the direction of pressing close to second nanofiltration membrane (401), the end of intaking of third shower nozzle (415) all is connected with third out medicine pump (413).

7. A landfill leachate concentrate treatment plant according to claim 1, wherein: the second reverse osmosis assembly (5) comprises a second reverse osmosis box body (500), a second reverse osmosis membrane (501) is arranged in the middle of the second reverse osmosis box body (500), the second reverse osmosis membrane (501) divides the second reverse osmosis box body (500) into a fourth sewage part (502) and a fourth water purifying part (503), a fourth water inlet (504) and a fifth water inlet (505) are formed in the side wall of the second reverse osmosis box body (500) close to the fourth sewage part (502), the fourth water inlet (504) is connected with the output end of a fourth high-pressure pump (14), the fifth water inlet (505) is connected with the output end of a fifth high-pressure pump (15), a fourth water outlet (506) is formed in the side wall of the second reverse osmosis box body (500) close to the fourth water purifying part (503), the fourth water outlet (506) is connected with a second recovery box (8), and a fourth sewage pump (507) is arranged on the inner wall of the bottom of the second reverse osmosis box body (500) close to the fourth sewage part (502), A fourth sewage draining outlet (508) is arranged on the outer wall of the bottom, the sewage draining end of a fourth sewage draining pump (507) is connected with the fourth sewage draining outlet (508), the fourth sewage draining outlet (508) is connected with the input end of a seventh high-pressure pump (17), a fourth draining pump (509) is arranged on the inner wall of the bottom of a second reverse osmosis box body (500) close to the fourth water purifying part (503), the fourth draining pump (509) is connected with a fourth water outlet (506), a fourth medicine storage tank (510) is arranged on the outer wall of the top of the second reverse osmosis box body (500), a fourth medicine outlet pump (511) is arranged in the fourth medicine storage tank (510), fourth mounting blocks (512) are arranged on the inner wall of the top and the inner wall of the bottom of the second reverse osmosis box body (500), the fourth mounting blocks (512) are symmetrically arranged on two sides of the second reverse osmosis box body (501), fourth spray heads (513) are arranged on the fourth mounting blocks (512), and the spray part inclines towards the direction of the second reverse osmosis membrane (501), the water inlet end of the fourth spray head (513) is connected with a fourth medicine outlet pump (511).

8. A landfill leachate concentrate treatment plant according to claim 1, wherein: the third reverse osmosis component (6) comprises a third reverse osmosis box body (600), a third reverse osmosis membrane (601) is arranged in the middle of the third reverse osmosis box body (600), the third reverse osmosis box body (600) is divided into a fifth sewage part (602) and a fifth water purifying part (603) by the third reverse osmosis membrane (601), a sixth water inlet (604) and a seventh water inlet (605) are formed in the side wall of the third reverse osmosis box body (600) close to the fifth sewage part (602), the sixth water inlet (604) is connected with the output end of a sixth high-pressure pump (16), the seventh water inlet (605) is connected with the output end of a seventh high-pressure pump (17), a fifth water outlet (606) is formed in the side wall of the third reverse osmosis box body (600) close to the fifth water purifying part (603), the fifth water outlet (606) is connected with a second recovery box (8), and a fifth sewage pump (607) are arranged on the inner wall of the bottom of the third reverse osmosis box body (600) close to the fifth sewage part (602), A fifth sewage draining outlet (608) is formed in the outer wall of the bottom of the reverse osmosis membrane, the sewage draining end of a fifth sewage draining pump (607) is connected with the fifth sewage draining outlet (608), the fifth sewage draining outlet (608) is connected with one port of a second three-way ball valve (18), a fifth water draining pump (609) is arranged on the inner wall of the bottom of a third reverse osmosis box body (600) close to the fifth water purifying part (603), the fifth water draining pump (609) is connected with a fifth water outlet (606), a fifth medicine storing tank (610) is arranged on the outer wall of the top of the third reverse osmosis box body (600), a fifth medicine discharging pump (611) is arranged in the fifth medicine storing tank (610), fifth mounting blocks (612) are arranged on the inner wall of the top and the inner wall of the bottom of the third reverse osmosis box body (600), the fifth mounting blocks (612) are symmetrically arranged on two sides of the third reverse osmosis membrane (601), fifth spray nozzles (613) are arranged on the fifth mounting blocks (612), and a spray part is obliquely close to the direction of the third reverse osmosis membrane (601, the water inlet end of the fifth spray head (613) is connected with a fifth medicine outlet pump (611).

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