CN211311236U

CN211311236U - Integrated treatment device for garbage leachate

Info

Publication number: CN211311236U
Application number: CN201922090108.5U
Authority: CN
Inventors: 张文荟; 钟诚; 张威; 邓文颖; 屠海南; 雷燕
Original assignee: Nanjing Guolong Biological Technology Co ltd
Current assignee: Shanghai Global Biotechnology Group Co ltd
Priority date: 2019-11-28
Filing date: 2019-11-28
Publication date: 2020-08-21
Anticipated expiration: 2029-11-28

Abstract

The utility model relates to the field of garbage treatment, in particular to an integrated garbage leachate treatment device, which comprises a UASB anaerobic reactor, an anaerobic tank, an aerobic biological contact oxidation tank, an MBR membrane reaction tank and a disinfection effluent tank which are arranged in sequence; a total sewage inlet pipe is arranged at the water inlet of the UASB anaerobic reactor, a return pipe is connected to one side of the anaerobic tank, an aerobic tank aeration pipe and an aerobic tank water outlet collecting pipe are arranged in the aerobic biological contact oxidation tank, an MBR tank aeration pipe is arranged in the MBR membrane reaction tank, and a total water outlet pipe is arranged at the outlet of the disinfection water outlet tank; the device comprises a machine room control room, wherein an MBR suction water pump and an MBR backwashing water pump are arranged in the machine room control room; an MBR suction water production pipe is arranged in the aeration pipe of the MBR tank and is connected with the inlet end of an MBR suction water pump; the outlet end of the MBR suction water pump is connected with an MBR suction pump water outlet pipe, and the outlet of the MBR suction pump water outlet pipe is communicated with a disinfection water outlet tank; the MBR backwash water pump links to each other with MBR backwash pump inlet tube, and the entry and the disinfection of MBR backwash pump inlet tube go out the pond and be linked together.

Description

Integrated treatment device for garbage leachate

Technical Field

The utility model relates to a refuse treatment technical field, concretely relates to landfill leachate processing apparatus.

Background

The landfill leachate is secondary pollution generated by a landfill site, has high ammonia nitrogen and organic matter content, imbalance carbon-nitrogen ratio and various pollutants, and generates great harm to the surrounding environment. The sanitary landfill of the Chinese garbage is developed later, and in the middle and later periods of the 80 th 20 th century, governments at all levels begin to plan and build relatively standard garbage landfill sites.

The prior art generally adopts physicochemical treatment and membrane treatment technologies, and the physicochemical treatment technology has low removal rate for high-concentration wastewater and high operation cost; membrane separation techniques can treat wastewater to discharge standards and even reuse water labeling, but can produce more difficult to treat concentrates.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a landfill leachate integrated treatment device.

In order to achieve the above object, the utility model provides a following technical scheme:

an integrated treatment device for landfill leachate comprises a UASB anaerobic reactor, an anaerobic tank, an aerobic biological contact oxidation tank, an MBR membrane reaction tank and a disinfection effluent tank which are arranged in sequence; a total sewage inlet pipe is arranged at the water inlet of the UASB anaerobic reactor, a return pipe is connected to one side of the anaerobic tank, an aerobic tank aeration pipe and an aerobic tank water outlet collecting pipe are arranged in the aerobic biological contact oxidation tank, an MBR tank aeration pipe is arranged in the MBR membrane reaction tank, and a total water outlet pipe is arranged at the outlet of the disinfection water outlet tank;

the device also comprises a machine room control room, wherein an MBR suction water pump and an MBR backwashing water pump are arranged in the machine room control room;

an MBR suction water production pipe is arranged in the aeration pipe of the MBR tank and is connected with the inlet end of an MBR suction water pump; the outlet end of the MBR suction water pump is connected with an MBR suction pump water outlet pipe, and the outlet of the MBR suction pump water outlet pipe is communicated with a disinfection water outlet tank;

the MBR backwash water pump links to each other with MBR backwash pump inlet tube, the entry and the disinfection play pond of MBR backwash pump inlet tube are linked together.

The MBR backwashing water pump is connected with a backwashing pump water outlet pipe, and the backwashing pump water outlet pipe is connected to a cartridge filter.

The aerobic biological contact oxidation pond is also internally provided with a temporary unqualified drain pipe, and the temporary unqualified drain pipe is plugged when not in use.

Wherein, a plurality of rectangular holes are arranged below the pipeline of the aerobic tank water outlet collecting pipe, and the rectangular holes are uniformly distributed in three rows.

And a disinfection liquid mixer is arranged on the water outlet pipe of the MBR suction pump.

Wherein, all be equipped with blow-down pipe in UASB anaerobic reactor, anaerobism pond, aerobic biological contact oxidation pond and the MBR membrane reaction tank.

Wherein, UASB anaerobic reactor is equipped with the microorganism charge door for add microorganism and synergist, and most organic matters in the leachate are got rid of in anaerobic reaction.

Wherein, the anaerobic tank and the aerobic biological contact oxidation tank are filled with filler and strains, and are provided with a water distributor to homogenize a tank body liquid system, so that the degradation effect is improved, and organic matters and ammonia nitrogen in percolate are further removed. The arrangement mode of the fillers is related to the species of the strains; when Pseudomonas spp is adopted, the filler is arranged in a net shape; when the Pichia sp. strain is adopted, the filler is arranged in a honeycomb shape; when Rhodococcus sp. The actual arrangement is changed according to the water quality.

Wherein, the total sewage inlet pipe is provided with a flowmeter for controlling water quantity, and the return pipe is used for increasing the strain concentration.

Compared with the prior art, the beneficial effects of the utility model are that:

the device contains UASB and A/O (anaerobic/aerobic) process devices, can effectively reduce organic matters in the percolate, and has great advantages for treating high-concentration percolate with good biodegradability; is suitable for treating high-concentration percolate with good biochemical performance and high carbon-nitrogen ratio. The treatment device adopts an integrated facility, and the construction is simple and the period is short.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, 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.

Referring to fig. 1, an integrated treatment device for landfill leachate includes a UASB anaerobic reactor 1, an anaerobic tank 2, an aerobic biological contact oxidation tank 3, an MBR membrane reaction tank 4, and a disinfection effluent tank 5, which are sequentially arranged; a total sewage inlet pipe 11 is arranged at the water inlet of the UASB anaerobic reactor 1, a return pipe 21 is connected with one side of the anaerobic tank 2, an aerobic tank aeration pipe 31 and an aerobic tank water outlet collecting pipe 33 are arranged in the aerobic biological contact oxidation tank 3, an MBR tank aeration pipe 41 is arranged in the MBR membrane reaction tank 4, and a total water outlet pipe 51 is arranged at the outlet of the disinfection water outlet tank 5;

the device also comprises a machine room control room 6, wherein an MBR suction water pump 63 and an MBR backwashing water pump 64 are arranged in the machine room control room 6;

an MBR suction water production pipe 42 is arranged in the aeration pipe 41 of the MBR tank, and the MBR suction water production pipe 42 is connected with the inlet end of an MBR suction water pump 63; the outlet end of the MBR suction water pump 63 is connected with an MBR suction pump water outlet pipe 52, and the outlet of the MBR suction pump water outlet pipe 52 is communicated with the disinfection water outlet pool 5;

the MBR backwashing water pump 64 is connected with the MBR backwashing pump water inlet pipe 53, and the inlet of the MBR backwashing pump water inlet pipe 53 is communicated with the disinfection water outlet tank 5.

The MBR backwash water pump 64 is connected with a backwash pump outlet pipe 62, and the backwash pump outlet pipe 62 is connected to a cartridge filter.

A temporary unqualified drain pipe 34 is also arranged in the aerobic biological contact oxidation pond 3, and the temporary unqualified drain pipe 34 is plugged when not in use. A plurality of rectangular holes are arranged below the pipeline of the aerobic tank effluent collecting pipe 33, and the rectangular holes are uniformly distributed in three rows.

And a disinfectant mixer 61 is arranged on the water outlet pipe 52 of the MBR suction pump.

And emptying pipes, namely a first emptying pipe 12, a second emptying pipe 22, a third emptying pipe 32 and a fourth emptying pipe 43 are respectively arranged in the UASB anaerobic reactor 1, the anaerobic tank 2, the aerobic biological contact oxidation tank 3 and the MBR membrane reaction tank 4.

The UASB anaerobic reactor 1 is provided with a microorganism feed inlet for adding microorganisms and a synergist. The anaerobic tank 2 and the aerobic biological contact oxidation tank 3 are filled with fillers and strains and are provided with water distributors. The arrangement mode of the fillers is related to the species of the strains; when Pseudomonas spp is adopted, the filler is arranged in a net shape; when a Pichia spp strain is adopted, the filler is arranged in a honeycomb manner; when Rhodococcus sp. The actual arrangement is changed according to the water quality.

The total sewage inlet pipe 11 is provided with a flowmeter for controlling water quantity, and the return pipe 21 is used for increasing the strain concentration.

Aiming at the water quality characteristics of the landfill leachate, the device establishes a two-stage UASB-A/O + MBR combined process:

when the anaerobic treatment device is used, garbage leachate firstly enters the UASB anaerobic reactor, microorganisms and a synergist are added into the UASB anaerobic reactor through a microorganism charging opening, and most organic matters in the leachate are removed in an anaerobic reaction. Anaerobic effluent enters an A/O system, different fillers and strains are added into the A/O system and the tank body, and meanwhile, the water distributor homogenizes the liquid system of the tank body, so that the degradation effect is improved. Further removing organic matters and ammonia nitrogen in the leachate. The effluent of the system enters a reverse osmosis system (MBR membrane reaction tank) after being subjected to flocculation and precipitation to remove suspended matters in water, and colloid and dissolved matters in the water are removed by utilizing the strong separation capacity of the MBR membrane reaction tank. The effluent is finally discharged after reaching the standard after being treated in the stage.

Application example:

the integrated treatment project of the percolate of the west-ampere garbage transfer station is characterized in that the device is applied to the west-ampere garbage transfer station with the treatment capacity of 5 tons/day, and the effluent reaches the A-level standard in the Water quality Standard for Sewage discharge into urban sewers (GB-T31962-2015).

TABLE 1 Water quality Standard of wastewater discharged into urban sewer

The quality of the leachate inlet water of the west ampere refuse transfer station is shown in the following table 2 according to the water sample provided by the owner:

TABLE 2 Water quality index of influent

The quality of the effluent water after the device is used is as follows:

the stable effluent quality is measured after debugging for two weeks, and the stable effluent indexes are as shown in the following table and reach the A-grade standard in the Standard for wastewater discharge to urban sewer Water quality (GB-T31962-2015).

TABLE 3 project effluent quality index

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

Claims

1. The utility model provides a landfill leachate integrated processing apparatus which characterized in that: comprises a UASB anaerobic reactor (1), an anaerobic tank (2), an aerobic biological contact oxidation tank (3), an MBR membrane reaction tank (4) and a disinfection effluent tank (5) which are arranged in sequence; a total sewage inlet pipe (11) is arranged at the water inlet of the UASB anaerobic reactor (1), a return pipe (21) is connected to one side of the anaerobic tank (2), an aerobic tank aeration pipe (31) and an aerobic tank water outlet collecting pipe (33) are arranged in the aerobic biological contact oxidation tank (3), an MBR aeration tank aeration pipe (41) is arranged in the MBR membrane reaction tank (4), and a total water outlet pipe (51) is arranged at the outlet of the disinfection water outlet tank (5);

the device is characterized by also comprising a machine room control room (6), wherein an MBR suction water pump (63) and an MBR backwashing water pump (64) are arranged in the machine room control room (6);

an MBR suction water production pipe (42) is arranged in the aeration pipe (41) of the MBR tank, and the MBR suction water production pipe (42) is connected with the inlet end of an MBR suction water pump (63); the outlet end of the MBR suction water pump (63) is connected with an MBR suction pump water outlet pipe (52), and the outlet of the MBR suction pump water outlet pipe (52) is communicated with a disinfection water outlet pool (5);

the MBR backwashing water pump (64) is connected with an MBR backwashing pump water inlet pipe (53), and the inlet of the MBR backwashing pump water inlet pipe (53) is communicated with the disinfection water outlet tank (5).

2. The integrated landfill leachate treatment device according to claim 1, wherein: the MBR backwashing water pump (64) is connected with a backwashing pump water outlet pipe (62), and the backwashing pump water outlet pipe (62) is connected to a cartridge filter.

3. The integrated landfill leachate treatment device according to claim 1, wherein: a temporary unqualified drain pipe (34) is also arranged in the aerobic biological contact oxidation pond (3), and the temporary unqualified drain pipe (34) is plugged when not in use.

4. The integrated landfill leachate treatment device according to claim 1, wherein: a plurality of rectangular holes are formed below the pipeline of the aerobic tank effluent collecting pipe (33), and the rectangular holes are uniformly distributed in three rows.

5. The integrated landfill leachate treatment device according to claim 1, wherein: and a disinfection liquid mixer (61) is arranged on a water outlet pipe (52) of the MBR suction pump.

6. The integrated landfill leachate treatment device according to claim 1, wherein: and emptying pipes are arranged in the UASB anaerobic reactor (1), the anaerobic tank (2), the aerobic biological contact oxidation tank (3) and the MBR membrane reaction tank (4).

7. The integrated landfill leachate treatment device according to claim 1, wherein: the UASB anaerobic reactor (1) is provided with a microorganism feed inlet for adding microorganisms and a synergist.

8. The integrated landfill leachate treatment device according to claim 1, wherein: the anaerobic tank (2) and the aerobic biological contact oxidation tank (3) are filled with fillers and strains and are provided with water distributors.

9. The integrated landfill leachate treatment device according to claim 8, wherein: the arrangement mode of the fillers is related to the species of the strains; when Pseudomonas spp is adopted, the filler is arranged in a net shape; when the Pichia sp. strain is adopted, the filler is arranged in a honeycomb shape; when Rhodococcus sp. The actual arrangement is changed according to the water quality.

10. The integrated landfill leachate treatment device according to claim 9, wherein: the total sewage inlet pipe (11) is provided with a flowmeter for controlling water quantity, and the return pipe (21) is used for increasing the concentration of strains.