CN211367265U

CN211367265U - Device for removing suspended matters and microorganisms in landfill leachate treatment

Info

Publication number: CN211367265U
Application number: CN201921260643.4U
Authority: CN
Inventors: 高新; 周俊; 蔡斌; 简世玉
Original assignee: Hunan Junxin Environmental Co ltd
Current assignee: Hunan Junxin Environmental Co ltd
Priority date: 2019-08-05
Filing date: 2019-08-05
Publication date: 2020-08-28
Anticipated expiration: 2029-08-05

Abstract

The utility model discloses a remove device of suspended solid, microorganism in landfill leachate handles, including the former water tank of ultrafiltration, ultrafiltration storage water tank and the first pipeline of connecting the former water tank of ultrafiltration and ultrafiltration storage water tank, be equipped with on the first pipeline in proper order and be equipped with first ooff valve, suction pump and first filter, first ooff valve and suction pump are located the upper reaches of first filter, and the play water end of first pipeline is equipped with submergence formula UV ultraviolet lamp. The utility model discloses an install simple first filter and submergence formula UV ultraviolet lamp and continuously shine behind the former water tank of ultrafiltration, through suspended solid and the biological slime in the filtration aquatic of first filter, kill the microorganism through shining of ultraviolet lamp to make the booster pump steady operation of subsequent membrane module, avoid leading to the fact the booster pump to last the damage because of the suspended solid of intaking too much.

Description

Device for removing suspended matters and microorganisms in landfill leachate treatment

Technical Field

The utility model relates to a landfill leachate treatment process especially relates to a remove device of suspended solid, microorganism in landfill leachate handles.

Background

In the project of treating the landfill leachate by adopting the external MBR (membrane bioreactor) process, the water quality balance allocation is an extremely important control link. The water quality blending is to mix the high-concentration percolate and the low-concentration percolate according to a certain proportion so as to achieve the C/N ratio required by a biochemical system. The general high-concentration percolate has high B/C ratio, complex organic matter components and COD/BOD₅The concentration is extremely high, the percolate after balanced blending is subjected to biological denitrification through two-stage nitrification/denitrification reaction, then is subjected to mud-water separation through an external ultrafiltration membrane system, the produced water of the ultrafiltration membrane enters a water production tank, and the activated sludge flows back to the biochemical reaction tank, so that the sludge loss is avoided.

The ultrafiltration water production tank is used as an intermediate water tank for temporarily storing the ultrafiltration membrane and is used as a water inlet source of subsequent NF and RO membranes, however, the temperature of the water body rises again in spring and summer each year, microorganisms are rapidly propagated, and biological mucosa is easily formed in the running process of the ultrafiltration membrane system with long service time, so that biological pollution is formed. Biological mucosa is a self-supporting complex network structure that can adsorb organic and inorganic substances in treated water and become a nutrient source for next generation cell proliferation. The structure of microorganism dirt, the composition is relatively more complicated, wherein the biological slime has become main pollution source, therefore can appear the suspended solid in the ultrafiltration product water tank, the colloid, the biological slime, the ultrafiltration water tank is the iron material, inside scribbles anticorrosive material, need add hydrochloric acid in the product water tank because of the ultrafiltration, adjust pH, guarantee that pH reaches RO in the jar, NF membrane's requirement of intaking, jar live time overlength, anticorrosive material part drops, when causing jar interior iron ion to exist in a large number, because the hydrolysis of iron, form the colloid, a large amount of suspended solids will appear in the jar.

If no effective measures are taken to remove suspended matters and microorganism slime in the tank body, the suspended matters and the slime enter a booster pump (plunger pump) of the RO membrane unit and a subsequent RO membrane element, so that the physical blockage of the RO membrane element is caused, the pressure rises, the water yield is reduced, the booster pump is abraded frequently, the maintenance cost is increased, and the water treatment capacity of the landfill leachate is reduced. In the project of treating landfill leachate by external MBR, when suspended solids and microorganism slime appear in the ultrafiltration water production tank, the commonly adopted technical means comprise adding non-oxidative bactericide, stopping production and cleaning the ultrafiltration water production tank, cleaning the inlet pipeline of the subsequent RO and NF membrane unit, and adjusting the aperture of the filter bag in the subsequent RO and NF membrane cartridge filter.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome the not enough of prior art, provide a simple structure's among landfill leachate handles remove device of suspended solid, microorganism.

In order to solve the technical problem, the utility model discloses a following technical scheme:

the utility model provides a remove device of suspended solid, microorganism in landfill leachate handles, includes the former water tank of ultrafiltration, ultrafiltration storage water tank and connects the former water tank of ultrafiltration and the first pipeline of ultrafiltration storage water tank, be equipped with on the first pipeline and be equipped with first ooff valve, suction pump and first filter in proper order, first ooff valve and suction pump are located the upper reaches of first filter, the play water end of first pipeline is equipped with submergence formula UV ultraviolet lamp.

As a further improvement of the above technical solution:

a second pipeline is connected between the water suction pump and the immersed UV ultraviolet lamp in parallel on the first pipeline, and a second filter is arranged on the second pipeline.

And a PH detector is arranged on the first pipeline and is positioned at the downstream of the first filter and the second filter.

And at least two hydrochloric acid feeding pipelines are arranged at the top of the ultrafiltration raw water tank.

And pressure gauges are arranged on the first filter and the second filter.

And the inlet end and the outlet end of the first filter are respectively provided with a second switch valve and a third switch valve.

And the inlet end and the outlet end of the second filter are respectively provided with a fourth switch valve and a fifth switch valve.

The first switch valve, the second switch valve, the third switch valve, the fourth switch valve and the fifth switch valve are all manual butterfly valves.

Compared with the prior art, the utility model has the advantages of:

the utility model discloses a suspended solid among landfill leachate handles, the remove device of microorganism, continue to shine through simple first filter of installation and submergence formula UV ultraviolet lamp behind the former water tank of ultrafiltration, filtration through first filter gets rid of suspended solid and biological clay in the water, kill the microorganism through shining of ultraviolet lamp, thereby make the booster pump (plunger pump) steady operation of follow-up membrane module, avoid causing the booster pump to last to damage because of the suspended solid of intaking is too much, this remove device equipment is simple, the operation is easy, area is little, only install one set of filter equipment and an ultraviolet lamp on the outlet conduit (first pipeline) of the former water tank of ultrafiltration, just can easily realize getting into the suspended solid and the microorganism at water source in the ultrafiltration storage water tank and get rid of.

Further, the utility model discloses in, parallelly connected a second pipeline between suction pump and submergence formula UV ultraviolet lamp on first pipeline, be equipped with the second filter on the second pipeline. The second filter is used as a standby filter, and when the filter bag of the first filter needs to be replaced, the second filter is started, so that the whole treatment process can be ensured to be uninterrupted, and the working efficiency is greatly improved.

Drawings

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

The reference numerals in the figures denote:

1. an ultrafiltration raw water tank; 2. a first on-off valve; 3. a water pump; 4. a second on-off valve; 5. a fourth switching valve; 6. a first filter; 7. a second filter; 8. a fifth on-off valve; 9. a third on-off valve; 10. a pH detector; 11. an immersed UV lamp; 12. an ultrafiltration water storage tank; 13. a hydrochloric acid feeding pipeline; 14. a first pipeline; 15. a second pipeline; 16. and a pressure gauge.

Detailed Description

The invention is described in further detail below with reference to the drawings and specific examples.

As shown in fig. 1, the device for removing suspended matters and microorganisms in landfill leachate treatment of the present embodiment includes an ultrafiltration raw water tank 1, an ultrafiltration water storage tank 12 and a first pipeline 14 connecting the ultrafiltration raw water tank 1 and the ultrafiltration water storage tank 12, the first pipeline 14 is provided with a first switch valve 2, a water pump 3 and a first filter 6 in sequence, the first switch valve 2 and the water pump 3 are located at the upstream of the first filter 6, and the water outlet end of the first pipeline 14 is provided with an immersion UV ultraviolet lamp 11. The water source in the ultrafiltration raw water tank 1 is pumped by the water pumping pipe 3, suspended matters are filtered by the first filter 6, microorganisms in water are killed by the immersed UV ultraviolet lamp 11, and the finally treated water source flows into the ultrafiltration water storage tank 12. The water pumping pipe 3 is specifically a circulating pump.

Through installing simple first filter 6 and submergence formula UV ultraviolet lamp 11 behind the former water tank 1 of ultrafiltration and continuously shining, through suspended solid and the biological slime in the filtration gets rid of water of first filter 6, through shining of ultraviolet lamp and kill the microorganism to make the booster pump (plunger pump) steady operation of follow-up membrane module, avoid leading to the fact the booster pump to last damage because of the suspended solid of intaking too much. The removing device has the advantages of simple equipment, easy operation and small occupied area, and can easily remove suspended matters and microorganisms entering a water source in the ultrafiltration water storage tank 12 only by installing a set of filtering device and an ultraviolet lamp on the water outlet pipeline (the first pipeline 14) of the ultrafiltration raw water tank 1.

In this embodiment, a second pipeline 15 is connected in parallel between the water pump 3 and the immersed UV lamp 11 on the first pipeline 14, and a second filter 7 is disposed on the second pipeline 15. The second filter 7 is used as a standby filter, and when the filter bag of the first filter 6 needs to be replaced, the second filter 7 is started, so that the whole treatment process can be ensured to be uninterrupted, and the working efficiency is greatly improved.

In this embodiment, the PH detector 10 is disposed on the first pipeline 14, and the PH detector 10 is located downstream of the first filter 6 and the second filter 7. Two hydrochloric acid feeding pipelines 13 are arranged at the top of the ultrafiltration raw water tank 1. The hydrochloric acid feeding pipeline 13 is made of PE, and is fed to the ultrafiltration raw water tank 1 on line from a hydrochloric acid storage tank through a diaphragm acid feeding pump. Two hydrochloric acid adding pipelines 13 are used for one standby

In this embodiment, the first filter 6 and the second filter 7 are both provided with a pressure gauge 16. Whether the filter is blocked or not and whether the filter bag needs to be replaced or not is detected through the pressure gauge 16.

In this embodiment, the inlet end and the outlet end of the first filter 6 are provided with a second on-off valve 4 and a third on-off valve 9, respectively. The inlet end and the outlet end of the second filter 7 are respectively provided with a fourth switching valve 5 and a fifth switching valve 8. The first switch valve 2, the second switch valve 4, the third switch valve 9, the fourth switch valve 5 and the fifth switch valve 8 are all manual butterfly valves. Valves are provided at both ends of the first filter 6 and the second filter 7, and can be independently controlled when either filter is replaced.

The working principle is as follows:

the play water of MBR milipore filter gets into ultrafiltration raw water tank 1, with manual butterfly valve 2, 4, 9 in the open mode, manual valve 5, 8 are the closed condition, start suction pump 3, the water source of ultrafiltration raw water tank 1 is filtered through first filter 6 through the 24h operation of circulating pump, first filter 6 carries out the physics to be held back to the water source, thereby get rid of the suspended solid in the aquatic continuously, go out water end installation submergence formula UV ultraviolet lamp 11 at first pipeline 14, rivers are lasted by submergence formula UV ultraviolet lamp 11 and are disinfected in the process, thereby kill the microorganism in the waste water, rivers after holding back through first filter 6 and the rivers that kill the microorganism through submergence formula UV ultraviolet lamp 11 flow into ultrafiltration storage water tank 12 at last, and as the water source of intaking of follow-up nanofiltration/reverse osmosis membrane.

When the pressure that first filter 6 top manometer 16 shows differs 1bar around (data transmission to the central control room of first filter 6 top manometer 16, can look over at the control chamber, and change the filter bag in the first filter 6 according to the pressure value), open manual butterfly valve 5, 8 this moment, close manual butterfly valve 4 and 9, the water source in the raw water tank of ultrafiltration 1 then filters through reserve second filter 7, open first filter 6 this moment, change the filter bag in the filter, when waiting that the manometer 16 of second filter 7 shows vertical fore-and-aft differential pressure reaches 1bar, switch over again to first filter 6, recycle.

Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention. The technical solution of the present invention can be used by anyone skilled in the art to make many possible variations and modifications, or to modify equivalent embodiments, without departing from the scope of the technical solution of the present invention, using the technical content disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments by the technical entity of the present invention should fall within the protection scope of the technical solution of the present invention.

Claims

1. The utility model provides a remove device of suspended solid, microorganism in landfill leachate handles which characterized in that: including first pipeline (14) of ultrafiltration raw water tank (1), ultrafiltration storage water tank (12) and connection ultrafiltration raw water tank (1) and ultrafiltration storage water tank (12), be equipped with on first pipeline (14) and be equipped with first ooff valve (2), suction pump (3) and first filter (6) in proper order, first ooff valve (2) and suction pump (3) are located the upper reaches of first filter (6), the play water end of first pipeline (14) is equipped with submergence formula UV ultraviolet lamp (11), first pipeline (14) are gone up and are parallelly connected a second pipeline (15) between suction pump (3) and submergence formula UV ultraviolet lamp (11), be equipped with second filter (7) on second pipeline (15).

2. The device for removing suspended substances and microorganisms in landfill leachate treatment according to claim 1, wherein: and a PH detector (10) is arranged on the first pipeline (14), and the PH detector (10) is positioned at the downstream of the first filter (6) and the second filter (7).

3. The device for removing suspended substances and microorganisms in landfill leachate treatment according to claim 2, wherein: the top of the ultrafiltration raw water tank (1) is provided with at least two hydrochloric acid adding pipelines (13).

4. The device for removing suspended substances and microorganisms in the landfill leachate treatment according to any one of claims 1 to 3, wherein: and pressure gauges (16) are arranged on the first filter (6) and the second filter (7).

5. The device for removing suspended substances and microorganisms in the landfill leachate treatment according to any one of claims 1 to 3, wherein: and the inlet end and the outlet end of the first filter (6) are respectively provided with a second switch valve (4) and a third switch valve (9).

6. The device for removing suspended substances and microorganisms in landfill leachate treatment according to claim 5, wherein: and the inlet end and the outlet end of the second filter (7) are respectively provided with a fourth switch valve (5) and a fifth switch valve (8).

7. The device for removing suspended substances and microorganisms in landfill leachate treatment according to claim 6, wherein: the first switch valve (2), the second switch valve (4), the third switch valve (9), the fourth switch valve (5) and the fifth switch valve (8) are all manual butterfly valves.