CN215049473U - Garbage leachate treatment system IC anaerobic tank drainage device - Google Patents
Garbage leachate treatment system IC anaerobic tank drainage device Download PDFInfo
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- CN215049473U CN215049473U CN202120209725.7U CN202120209725U CN215049473U CN 215049473 U CN215049473 U CN 215049473U CN 202120209725 U CN202120209725 U CN 202120209725U CN 215049473 U CN215049473 U CN 215049473U
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- liquid separation
- anaerobic tank
- tank body
- biogas
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- 239000007788 liquid Substances 0.000 claims abstract description 70
- 238000000926 separation method Methods 0.000 claims abstract description 66
- 239000000203 mixture Substances 0.000 claims abstract description 11
- 239000002002 slurry Substances 0.000 claims abstract description 11
- 230000001174 ascending effect Effects 0.000 claims abstract description 9
- 239000000149 chemical water pollutant Substances 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 45
- 230000000630 rising effect Effects 0.000 abstract description 3
- 230000003111 delayed effect Effects 0.000 abstract description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 38
- 239000010802 sludge Substances 0.000 description 12
- 238000000034 method Methods 0.000 description 4
- 239000002351 wastewater Substances 0.000 description 4
- 241000894006 Bacteria Species 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000002957 persistent organic pollutant Substances 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 230000002053 acidogenic effect Effects 0.000 description 1
- 230000004071 biological effect Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000012554 master batch record Methods 0.000 description 1
- 230000000696 methanogenic effect Effects 0.000 description 1
- 238000001728 nano-filtration Methods 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000002407 reforming Methods 0.000 description 1
- 238000001223 reverse osmosis Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 238000009280 upflow anaerobic sludge blanket technology Methods 0.000 description 1
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Abstract
A drainage device of an IC anaerobic tank of a garbage leachate treatment system comprises a gas-liquid separation tank body, an ascending pipe, a descending pipe and a biogas collecting pipe, wherein the gas-liquid separation tank body is arranged at the top of the IC type anaerobic tank, and a gas-liquid mixture in a gas-liquid separation zone at the uppermost layer of the IC type anaerobic tank enters the gas-liquid separation tank body along the ascending pipe. Because the side wall of the gas-liquid separation tank body is additionally provided with the drain pipeline, one end of the drain pipeline is connected to the bottom of the gas-liquid separation tank body, the other end of the drain pipeline is connected into the IC type anaerobic tank, and biogas slurry in the gas-liquid separation tank body is drained and dredged to the gas-liquid separation zone at the uppermost layer of the IC type anaerobic tank. The problems of water carrying of the biogas, a large amount of accumulated water in the gas-liquid separation tank body, continuous rising of the internal pressure of the IC type anaerobic tank and the like caused by scaling and blockage of the biogas collecting pipe and the downcomer are effectively avoided, the scaling speed of the biogas water seal is further delayed, and the normal operation of the IC type anaerobic tank is ensured.
Description
Technical Field
The utility model relates to a landfill leachate processing system especially relates to a landfill leachate processing system IC anaerobic jar hydrophobic means.
Background
The landfill leachate refers to high-concentration organic wastewater generated in the process of stacking and burying the garbage. The domestic mainstream treatment process of the landfill leachate at the present stage is pretreatment, anaerobism, external MBR, nanofiltration and reverse osmosis, wherein the landfill leachate enters an anaerobic reactor after being pretreated, hydrolytic bacteria, acidogenic bacteria and methanogenic bacteria in the reactor perform biological activities by utilizing organic pollutants in water under a medium-temperature environment, and indissolvable organic pollutants in the water are firstly decomposed into soluble macromolecular substances, then are decomposed into micromolecular organic acids and finally are decomposed into micromolecular substances such as carbon dioxide, methane, water and the like, so that the pollutants are removed.
The IC anaerobic tank is mainly formed by connecting 2 layers of UASB reactors in series, and is divided into 5 zones from bottom to top according to functions: a mixing zone, a1 st anaerobic zone, a2 nd anaerobic zone, a settling zone and a gas-liquid separation zone.
A mixing area: the water entering the bottom of the reactor, the granular sludge and the mud-water mixture returned from the gas-liquid separation zone are effectively mixed in the zone.
A first anaerobic zone: the mud-water mixture formed in the mixing area enters the area, and most organic matters are converted into methane under the action of high-concentration sludge. The rising flow of the mixed liquid and the violent disturbance of the methane enable the sludge in the reaction area to be in an expanded and fluidized state, the contact of the surface of the sludge and the water is enhanced, and the sludge keeps high activity. Along with the increase of the output of the biogas, a part of the mud-water mixture is lifted to the gas-liquid separation area at the top by the biogas.
A2 nd anaerobic zone: and (3) the waste water treated in the anaerobic zone (1) is partially lifted by the methane, and the rest of the waste water enters the anaerobic zone (2) through a three-phase separator. The sludge concentration in the area is low, and most organic matters in the wastewater are degraded in the No. 1 anaerobic zone, so the methane generation amount is low. The marsh gas is introduced into the gas-liquid separation zone through the marsh gas pipe, the disturbance to the anaerobic zone 2 is small, and favorable conditions are provided for the retention of the sludge.
A precipitation zone: and (3) performing solid-liquid separation on the sludge-water mixture in the anaerobic zone 2 in the settling zone, discharging supernatant liquid through a water outlet pipe, and returning the settled granular sludge to a sludge bed in the anaerobic zone 2.
A gas-liquid separation zone: the lifted mixture enters a sludge-water separator, wherein the methane and the sludge-water are separated and enter a methane collecting system, and the sludge-water mixture returns to a mixing area at the lower end along a return pipe and is fully mixed with the sludge and the inlet water at the bottom of the reactor, so that the internal circulation of the mixed liquid is realized.
The IC reactor realizes mud-water separation through a 2-layer three-phase separator to obtain high sludge concentration; the mud and water are fully contacted through the violent disturbance of a large amount of methane and internal circulation, and a good mass transfer effect is obtained.
The IC anaerobic tank is provided with a mud-water separation tank body on the top of the tank for collecting a biogas slurry and a biogas mixture at the position of the gas-liquid separation zone, the biogas slurry carries biogas to enter the mud-water separation tank body, the biogas enters a biogas gas cabinet through a biogas collecting pipe, and the biogas slurry flows into the bottom of the anaerobic tank along a downcomer.
The biogas slurry in the anaerobic tank has serious scaling tendency, so that the scaling phenomenon of a collecting pipe and a downcomer of a mud-water separation tank body of a common IC anaerobic tank is extremely serious, the pipe diameter of a biogas collecting pipeline is reduced due to scaling, the ascending flow speed is increased, and the steam water is splashed into a biogas collecting system; on the other hand, the sludge-water backflow pipe is seriously scaled to cause unsmooth sludge-water backflow, sludge water in the sludge-water separation tank body enters the methane water seal through the methane collection pipeline, and the combined action of the two points causes the problems of water carrying of the methane, large amount of accumulated water in the gas-liquid separation tank body, continuous rise of the internal pressure of the IC type anaerobic tank and the like until an alarm value is reached, the safety water seal is triggered, and the normal operation of the IC type anaerobic tank is influenced.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems in the prior art, the situation that water is carried in the methane is reduced by reforming the IC type anaerobic tank. The integrated anaerobic tank sludge-water separator is characterized in that biogas slurry in the IC type anaerobic tank sludge-water separator is led away, so that the liquid level in the sludge-water separator is reduced, the water carrying condition of the biogas can be greatly improved, the anaerobic tank can be ensured to normally operate, and the problems in the prior art are effectively solved.
The utility model provides a technical scheme that its technical problem adopted is: a garbage leachate treatment system IC anaerobic tank drainage device comprises a gas-liquid separation tank body, an ascending pipe, a descending pipe and a biogas collecting pipe, wherein the gas-liquid separation tank body is arranged at the top of an IC type anaerobic tank, a gas-liquid mixture in a gas-liquid separation zone at the uppermost layer of the IC type anaerobic tank enters the gas-liquid separation tank body along the ascending pipe, biogas enters a biogas cabinet through the biogas collecting pipe, and biogas slurry flows into the bottom of the IC type anaerobic tank along the descending pipe.
The utility model discloses preferred scheme, the gas-liquid separation jar body is two jar body structures, the drain line is T type tee bend structure, and two horizontal ports above it insert respectively in the gas-liquid separation jar body of left and right both sides and the downside port inserts in the gas-liquid separation district of IC type anaerobic jar the superiors.
The utility model discloses preferred scheme the entrance of two horizontal ports of drain pipe still sets up the pipeline valve respectively.
The utility model has the advantages that: a drainage device of an IC anaerobic tank of a garbage leachate treatment system is characterized in that a drainage pipeline is additionally arranged on the side wall of a gas-liquid separation tank body, one end of the drainage pipeline is connected to the bottom of the gas-liquid separation tank body, the other end of the drainage pipeline is connected into the IC anaerobic tank, and biogas slurry in the gas-liquid separation tank body is drained and drained to a gas-liquid separation area at the uppermost layer of the IC anaerobic tank. The problems of water carrying of the biogas, a large amount of accumulated water in the gas-liquid separation tank body, continuous rising of the internal pressure of the IC type anaerobic tank and the like caused by scaling and blockage of the biogas collecting pipe and the downcomer are effectively avoided, the scaling speed of the biogas water seal is further delayed, and the normal operation of the IC type anaerobic tank is ensured.
Description of the drawings:
fig. 1 and 2 are partial structural schematic diagrams of a conventional IC anaerobic tank sludge-water separation device. Wherein fig. 1 is a front view (i.e., a cross-sectional view at a1-a1 of fig. 2) and fig. 2 is a top view.
Fig. 3 and 4 are schematic partial structural views of a first embodiment of the present invention. Wherein fig. 3 is a front view (i.e., a cross-sectional view at a2-a2 of fig. 4) and fig. 4 is a top view.
An IC type anaerobic tank, a gas-liquid separation zone 1A;
2. a gas-liquid separation tank body;
3. a down pipe;
4. a drain pipe; 4.1A, 4.1B horizontal port, 4.2 lower side port;
5. a biogas collecting pipe;
6. a riser pipe.
Detailed Description
Fig. 1 and 2 are partial structural schematic diagrams of a conventional IC anaerobic tank sludge-water separation device. The figure shows that, in the prior art, the drainage device of the IC anaerobic tank of the garbage leachate treatment system comprises a gas-liquid separation tank body 2, an ascending pipe, a descending pipe 3 and a methane collection pipe 5, wherein the gas-liquid separation tank body 2 is arranged at the top of the IC type anaerobic tank 1, a gas-liquid mixture in a gas-liquid separation area 1A at the uppermost layer of the IC type anaerobic tank 1 enters the gas-liquid separation tank body 2 along the ascending pipe 6, methane enters a methane gas cabinet through the methane collection pipe 5, and methane liquid flows into the bottom of the IC type anaerobic tank 1 along the descending pipe 3.
In the prior art, the condition of water carrying of the biogas is serious, and meanwhile, the downcomer 3 is easy to scale and block, so that a large amount of water is accumulated in the operation process of the gas-liquid separation tank body 2, and the internal pressure of the IC type anaerobic tank is continuously increased due to the fact that the liquid level in the gas-liquid separation tank body 2 rises until an alarm value is reached, so that a safety water seal is triggered, and the normal operation of the IC type anaerobic tank is influenced. On the other hand, when the descending pipe 3 is scaled and blocked, the dredging and cleaning process needs a large amount of work, usually the whole pipe needs to be replaced, the work amount is large, and the operation of the whole system is troublesome.
Fig. 3 and 4 are schematic partial structural views of a first embodiment of the present invention. In the figure, a drainage pipeline 4 is additionally arranged on the side wall of the gas-liquid separation tank body 2, one end of the drainage pipeline 4 is connected to the bottom of the gas-liquid separation tank body 2, the other end of the drainage pipeline 4 is connected to the gas-liquid separation area at the uppermost layer of the IC type anaerobic tank 1, and biogas slurry accumulated in the gas-liquid separation tank body 2 is guided to the gas-liquid separation area at the uppermost layer of the IC type anaerobic tank 1. Because the drain pipe 4 can effectively empty the biogas slurry accumulated in the gas-liquid separation tank body 2, the liquid level in the gas-liquid separation tank body 2 can be guaranteed to be limited in a safe range, so that the internal balance of the gas-liquid separation tank body 2 is maintained, the phenomenon that the biogas carries water is avoided, the pressure balance in the IC type anaerobic tank 1 is guaranteed, and the normal operation of the system is guaranteed.
In this embodiment, the gas-liquid separation tank has a double-tank structure, the drain pipe 4 has a T-shaped three-way structure, two horizontal ports 4A and 4B on the top are respectively connected to the left and right gas-liquid separation tanks, and the lower port is connected to the uppermost gas-liquid separation zone of the IC-type anaerobic tank 1.
The utility model discloses suggestion, the two jar body structures of gas-liquid separation jar body are applicable to medium-sized IC type anaerobic jar, can adopt single gas-liquid separation jar body structure to small-size IC type anaerobic jar, and then can adopt three gas-liquid separation jar body structure to large-scale IC type anaerobic jar.
The utility model discloses the suggestion in other embodiments the entrance of two horizontal ports of drain pipe still sets up the pipeline valve respectively. The inlet of two horizontal ports of drain pipe sets up the effect of pipeline valve respectively is, when needs clear up drain pipe 4, closes the pipeline valve, need not to dismantle the gas-liquid separation jar body, also need not the bring to rest. This can greatly shorten the maintenance period and reduce the workload.
Claims (3)
1. A garbage leachate treatment system IC anaerobic tank drainage device comprises a gas-liquid separation tank body, an ascending pipe, a descending pipe and a biogas collecting pipe, wherein the gas-liquid separation tank body is arranged at the top of an IC type anaerobic tank, a gas-liquid mixture in a gas-liquid separation zone at the uppermost layer of the IC type anaerobic tank enters the gas-liquid separation tank body along the ascending pipe, biogas enters a biogas cabinet through the biogas collecting pipe, and biogas slurry flows into the bottom of the IC type anaerobic tank along the descending pipe.
2. The drainage device of the IC anaerobic tank of the landfill leachate treatment system as claimed in claim 1, wherein the gas-liquid separation tank body is of a double-tank body structure, the drainage pipeline is of a T-shaped three-way structure, two horizontal ports on the drainage pipeline are respectively connected into the gas-liquid separation tank bodies on the left side and the right side, and a lower port is connected into the gas-liquid separation zone on the uppermost layer of the IC anaerobic tank.
3. The landfill leachate treatment system IC anaerobic tank drainage device of claim 1, wherein pipeline valves are further respectively arranged at inlets of two horizontal ports of the drainage pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120209725.7U CN215049473U (en) | 2021-01-26 | 2021-01-26 | Garbage leachate treatment system IC anaerobic tank drainage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120209725.7U CN215049473U (en) | 2021-01-26 | 2021-01-26 | Garbage leachate treatment system IC anaerobic tank drainage device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215049473U true CN215049473U (en) | 2021-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120209725.7U Active CN215049473U (en) | 2021-01-26 | 2021-01-26 | Garbage leachate treatment system IC anaerobic tank drainage device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215049473U (en) |
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2021
- 2021-01-26 CN CN202120209725.7U patent/CN215049473U/en active Active
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Address after: 13 / F, Times financial center, 4001 Shennan Avenue, Futian District, Shenzhen, Guangdong 518000 Patentee after: Shenzhen Energy and environmental protection Co.,Ltd. Patentee after: WUHAN SHENNENG ENVIRONMENTAL PROTECTION NEW DITCH WASTE POWER GENERATION Co.,Ltd. Patentee after: Guilin Shenneng environmental protection Co.,Ltd. Patentee after: Shanxian Shenneng environmental protection Co.,Ltd. Patentee after: Shenzhen Shenneng environmental protection East Co.,Ltd. Patentee after: Chaozhou Shenneng environmental protection Co.,Ltd. Patentee after: Shenzhen Shenneng Environmental Protection City Environmental Service Co.,Ltd. Address before: 13 / F, Times financial center, 4001 Shennan Avenue, Futian District, Shenzhen, Guangdong 518000 Patentee before: SHENZHEN ENERGY ENVIRONMENTAL ENGINEERING Co.,Ltd. Patentee before: WUHAN SHENNENG ENVIRONMENTAL PROTECTION NEW DITCH WASTE POWER GENERATION Co.,Ltd. Patentee before: Guilin Shenneng environmental protection Co.,Ltd. Patentee before: Shanxian Shenneng environmental protection Co.,Ltd. Patentee before: Shenzhen Shenneng environmental protection East Co.,Ltd. Patentee before: Chaozhou Shenneng environmental protection Co.,Ltd. Patentee before: Shenzhen Shenneng Environmental Protection City Environmental Service Co.,Ltd. |