CN212222717U - Glycerol-containing wastewater treatment integrated device - Google Patents
Glycerol-containing wastewater treatment integrated device Download PDFInfo
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- CN212222717U CN212222717U CN201921802474.2U CN201921802474U CN212222717U CN 212222717 U CN212222717 U CN 212222717U CN 201921802474 U CN201921802474 U CN 201921802474U CN 212222717 U CN212222717 U CN 212222717U
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Abstract
The utility model discloses a glycerin-containing wastewater treatment integrated device, which comprises a sewage source, an anoxic tank, an aerobic tank, a membrane filtration tank, a water production tank, an external reflux pipeline, a reflux pump A, a mud valve A, a reflux pump B, a mud valve B, a biochemical fan and a membrane scrubbing fan; the integrated device is suitable for industrial enterprises to treat the glycerol-containing wastewater, is convenient to assemble, saves occupied land, is convenient to transport, is simple to connect on site, and is flexible and changeable in arrangement; and the treatment effect on the glycerol wastewater is good.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to a glycerol-containing wastewater treatment integrated device.
Background
Glycerol, commonly known as glycerol, is miscible with water in any proportion. The wastewater containing glycerol often has a higher COD value (tens of thousands to hundreds of thousands), aquatic organisms can be harmed by direct discharge, and related industrial enterprises need to discharge the wastewater containing glycerol after carrying out high-efficiency treatment when discharging the wastewater containing glycerol so as to avoid polluting the environment.
Disclosure of Invention
In view of the above-mentioned drawbacks or deficiencies of the prior art, it would be desirable to provide an integrated glycerol-containing wastewater treatment device.
According to the technical scheme provided by the embodiment of the invention, the glycerol-containing wastewater treatment integrated device comprises a sewage source, an anoxic tank, an aerobic tank, a membrane filter tank, a water production tank, an external backflow pipeline, a backflow pump A, a sludge discharge valve A, a backflow pump B, a sludge discharge valve B, a biochemical fan and a membrane scrubbing fan;
the sewage source is connected with a water inlet of the anoxic tank through a pipeline, and a filter screen is arranged at the water inlet of the anoxic tank;
the aerobic tank is arranged close to the anoxic tank, a circulation port is formed between the anoxic tank and the aerobic tank, the reflux pump A is arranged at the bottom of the aerobic tank, and the reflux pump A is arranged on the inner reflux pipe A and is used for guiding the glycerol-containing wastewater in the aerobic tank back to the anoxic tank for secondary treatment; and the other end of the inner return pipe A, namely the water outlet, is positioned in the anoxic pond; the sludge discharge valve A is arranged at the bottom of the anoxic pond and used for discharging sludge regularly.
The air outlet of the biochemical fan is connected with an air pipe, and the air outlet end of the air pipe extends into the anoxic tank and the aerobic tank; the biochemical fan guides the air into the anoxic tank and the aerobic tank, so that the air continuously shakes and stirs the water in the stirring tank, and the contact between the sewage and the bacteria cultured in the tank in advance is accelerated.
The membrane filtering tank is arranged close to the aerobic tank, a flow port is formed between the aerobic tank and the membrane filtering tank, and a PVDF curtain type ultrafiltration membrane is arranged inside the membrane filtering tank and used for filtering bacteria and solid impurities; the reflux pump B is arranged at the bottom of the membrane filtration tank, the reflux pump B is arranged on an inner reflux pipe B, the other end of the inner reflux pipe B, namely a water outlet, is positioned in the aerobic tank, and the reflux pump B can guide the glycerol-containing wastewater in the membrane filtration tank back to the aerobic tank for secondary treatment; and the bottom of the aerobic tank is provided with the sludge discharge valve B for discharging sludge regularly. The air outlet of the membrane scrubbing fan is connected with an air pipe, the air outlet end of the air pipe extends into the membrane filtering tank, the membrane scrubbing fan is used for aerating to generate air bubbles, liquid in the membrane filtering tank is disturbed, and membrane filaments are cleaned.
The membrane filter tank is connected with the water production tank through a drainage pipeline; the outer return pipeline is connected between the water production tank and the sewage source. And the sewage treatment device is used for guiding the primarily treated water back to a sewage source and then carrying out secondary repeated treatment work.
In the invention, a water production pump is arranged on a drainage pipeline between the membrane filter tank and the water production tank and is used for conveying treated water.
In the invention, a water inlet pump is arranged on a pipeline between the sewage source and the anoxic tank and is used for quickly conveying sewage at the sewage source into the anoxic tank and simultaneously promoting treated water in the water tank to flow back to the sewage source for repeated secondary treatment.
In the invention, the aeration rate of the anoxic pond is 1-2 m3/h。
In the invention, the aeration rate of the aerobic tank is 8m3/h。
In the invention, the circulation port between the membrane filter tank and the aerobic tank is arranged in the middle of the partition wall between the aerobic tank and the membrane filter tank, and the ball valve is arranged on the circulation port.
In the invention, the flow opening between the anoxic tank and the aerobic tank is arranged at the bottom of the partition wall between the anoxic tank and the aerobic tank.
In the invention, the aerobic tank is positioned between the anoxic tank and the membrane filtration tank.
In conclusion, the invention has the beneficial effects that: the integrated device is suitable for industrial enterprises to treat the glycerol-containing wastewater, is convenient to assemble, saves occupied land, is convenient to transport, is simple to connect on site, and is flexible and changeable in arrangement; and the treatment effect on the glycerol wastewater is good.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments made with reference to the following drawings:
FIG. 1 is a schematic view of the flow structure of the present invention.
Reference numbers in the figures: 1. the sewage treatment system comprises a sewage source, 2 an anoxic tank, 3 an aerobic tank, 4 a membrane filter tank, 5 a water production tank, 6 an outer return pipeline, 7 a return pump A, 8 a mud discharge valve A, 9 a return pump B, 10 a mud discharge valve B, 11 a biochemical fan, 12 a membrane scrubbing fan, 13 PVDF curtain type ultrafiltration membrane 13, 14 a filter screen.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in fig. 1, the glycerol-containing wastewater treatment integrated device comprises a wastewater source 1, an anoxic tank 2, an aerobic tank 3, a membrane filtration tank 4, a water production tank 5, an external reflux pipeline 6, a reflux pump a7, a mud valve A8, a reflux pump B9, a mud valve B10, a biochemical fan 11 and a membrane scrubbing fan 12; the aerobic tank 3 is positioned between the anoxic tank 2 and the membrane filtration tank 4.
The sewage source 1 is connected with the water inlet of the anoxic tank 2 through a pipeline, and a water inlet pump is arranged on the pipeline between the sewage source 1 and the anoxic tank 2 and used for conveying water at the sewage source 1 and promoting water in the water tank 5 to flow back to the sewage source 1. A filter screen 14 is arranged at the water inlet of the anoxic pond 2; used for filtering large particles.
The aerobic tank 3 is close to the anoxic tank 2, a circulation port is formed between the anoxic tank 2 and the aerobic tank 3, and a circulation port between the anoxic tank 2 and the aerobic tank 3 is formed in the bottom of a partition wall between the anoxic tank 2 and the aerobic tank 3. The bottom of the aerobic tank 3 is provided with the reflux pump A7, the reflux pump A7 is arranged on an inner reflux pipe A, and the other end of the inner reflux pipe A, namely a water outlet, is positioned in the anoxic tank 2; the sludge discharge valve A8 is arranged at the bottom of the anoxic pond 2;
the air outlet of the biochemical fan 11 is connected with an air pipe, and the air outlet end of the air pipe extends into the anoxic pond 2 and the aerobic pond 3;
The membrane filtration tank 4 is connected with the water production tank 5 through a drainage pipeline, a water production pump is installed on the drainage pipeline between the membrane filtration tank 4 and the water production tank 5 to rapidly convey treated water to the water production tank 5, an outer backflow pipeline 6 is connected between the water production tank 5 and the sewage source 1, and treated sewage flows back to the sewage source 1 and is subjected to secondary repeated treatment.
Example (b): as shown in fig. 1, a sewage source 1 is glycerol-containing waste water from a distribution well of an oxidation ditch in a plant area, the glycerol-containing waste water is conveyed into an anoxic pond 2 through a pipeline and a water pump, and large particles and impurities are filtered by a filter screen 14 at a water inlet of the anoxic pond 2; the glycerol-containing wastewater enters the anoxic tank 2 after passing through the filter screen 14, and the aeration rate in the anoxic tank 2 is 1-2 m3The wastewater is contacted with the bacteria cultured in advance to carry out biochemical reaction under the condition that the wastewater is continuously shaken and stirred by air brought by the biochemical fan 11, and sodium acetate is used as a carbon source; the wastewater treated by the anoxic tank 2 flows into the aerobic tank 3 through a flow opening between the anoxic tank 2 and the aerobic tank 3, and the aeration rate of the aerobic tank is 8m3Putting polyaluminium chloride into the aerobic tank 3, and polymerizing the aluminum oxide to generate phosphate precipitate, wherein the glycerol-containing wastewater is subjected to nitration reaction and phosphate absorption in the aerobic tank 3, so that the content of phosphate in the glycerol-containing wastewater is reduced; adding a proper amount of polyaluminium chloride to generate phosphate precipitate, and further reducing the content of phosphate in the glycerol-containing wastewater; the wastewater treated by the aerobic tank 3 enters the membrane filtration tank 4 through a flow port between the aerobic tank 3 and the membrane filtration tank 4, and bacteria and solid impurities in the wastewater can be filtered by a PVDF curtain type ultrafiltration membrane arranged in the membrane filtration tank 4; the wastewater treated by the membrane filtration tank 4 is discharged from the membrane filtration tank 4, then enters the water tank 5 through a drainage pipeline under the action of a water production pump, the water tank 5 guides the treated water back to the sewage source 1 through an external reflux pipeline 6 and a water inlet pump, and then enters the anoxic tank 2 from the sewage source 1 to be repeatedly subjected to secondary treatment of the steps, and meanwhile, the wastewater can be repeatedly retreated between the aerobic tank 3 and the anoxic tank 2 and between the membrane filtration tank 4 and the aerobic tank 3, so that the glycerol in the wastewater can be thoroughly removed.
After the step of the water production pump, a sodium hypochlorite disinfectant can be added for killing bacteria attached to the membrane surface of the PVDF curtain type ultrafiltration membrane 13 during repeated treatment, and the number of the PVDF curtain type ultrafiltration membrane 13 in the device is set according to actual requirements.
The foregoing description is only exemplary of the preferred embodiments of the invention and is illustrative of the principles and techniques that may be employed. Meanwhile, the scope of the present invention is not limited to the specific combinations of the above-described features, and other embodiments in which the above-described features or their equivalents are arbitrarily combined without departing from the spirit of the present invention are also encompassed. For example, the above features and (but not limited to) features having similar functions disclosed in the present invention are mutually replaced to form the technical solution.
Claims (8)
1. An integrated glycerol-containing wastewater treatment device is characterized by comprising a sewage source (1), an anoxic tank (2), an aerobic tank (3), a membrane filtration tank (4), a water production tank (5), an external reflux pipeline (6), a reflux pump A (7), a mud valve A (8), a reflux pump B (9), a mud valve B (10), a biochemical fan (11) and a membrane scrubbing fan (12);
the sewage source (1) is connected with a water inlet of the anoxic tank (2) through a pipeline, and a filter screen (14) is arranged at the water inlet of the anoxic tank (2);
the aerobic tank (3) is arranged close to the anoxic tank (2), a circulation port is formed between the anoxic tank (2) and the aerobic tank (3), the reflux pump A (7) is installed at the bottom of the aerobic tank (3), the reflux pump A (7) is installed on an inner reflux pipe A, and the other end of the inner reflux pipe A, namely a water outlet, is positioned inside the anoxic tank (2); the sludge discharge valve A (8) is arranged at the bottom of the anoxic pond (2);
an air outlet of the biochemical fan (11) is connected with an air pipe, and the air outlet end of the air pipe extends into the anoxic tank (2) and the aerobic tank (3);
the membrane filtering tank (4) is arranged close to the aerobic tank (3), a circulation port is formed between the aerobic tank (3) and the membrane filtering tank (4), and a PVDF curtain type ultrafiltration membrane (13) is arranged in the membrane filtering tank (4); the reflux pump B (9) is arranged at the bottom of the membrane filtration tank (4), the reflux pump B (9) is arranged on the inner reflux pipe B, and the other end of the inner reflux pipe B, namely the water outlet, is positioned in the aerobic tank (3); the bottom of the aerobic tank (3) is provided with the mud valve B (10); an air outlet of the membrane scrubbing fan (12) is connected with an air pipe, and the air outlet end of the air pipe extends into the membrane filtering tank (4);
the membrane filtering tank (4) is connected with the water production tank (5) through a drainage pipeline; the outer return pipeline (6) is connected between the water production tank (5) and the sewage source (1).
2. The glycerol-containing wastewater treatment integrated device as set forth in claim 1, wherein: a water production pump is arranged on a drainage pipeline between the membrane filter tank (4) and the water production tank (5).
3. The glycerol-containing wastewater treatment integrated device as set forth in claim 1, wherein: and a water inlet pump is arranged on a pipeline between the sewage source (1) and the anoxic tank (2).
4. The glycerol-containing wastewater treatment integrated device as set forth in claim 1, wherein: the aeration rate of the anoxic tank (2) is 1-2 m3/h。
5. The glycerol-containing wastewater treatment integrated device as set forth in claim 1, wherein: the aeration rate of the aerobic tank (3) is 8m3/h。
6. The glycerol-containing wastewater treatment integrated device as set forth in claim 1, wherein: the circulation opening between the membrane filtering tank (4) and the aerobic tank (3) is formed in the middle of the partition wall between the aerobic tank (3) and the membrane filtering tank (4), and the circulation opening is provided with a ball valve.
7. The glycerol-containing wastewater treatment integrated device as set forth in claim 1, wherein: the circulation opening between the anoxic tank (2) and the aerobic tank (3) is arranged at the bottom of the partition wall between the anoxic tank (2) and the aerobic tank (3).
8. The glycerol-containing wastewater treatment integrated device as set forth in claim 1, wherein: the aerobic tank (3) is positioned between the anoxic tank (2) and the membrane filtration tank (4).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921802474.2U CN212222717U (en) | 2019-10-25 | 2019-10-25 | Glycerol-containing wastewater treatment integrated device |
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| CN201921802474.2U CN212222717U (en) | 2019-10-25 | 2019-10-25 | Glycerol-containing wastewater treatment integrated device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110776197A (en) * | 2019-10-25 | 2020-02-11 | 华电水务膜分离科技（天津）有限公司 | Glycerol-containing wastewater treatment integrated device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110776197A (en) * | 2019-10-25 | 2020-02-11 | 华电水务膜分离科技（天津）有限公司 | Glycerol-containing wastewater treatment integrated device |
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Address after: 518-17, 18 Fuyuan Road, development zone, Wuqing District, Tianjin Patentee after: Huadian water equipment (Tianjin) Co.,Ltd. Address before: 518-17, 18 Fuyuan Road, development zone, Wuqing District, Tianjin Patentee before: HUADIAN WATER MEMBRANE SEPARATION TECHNOLOGY (TIANJIN) Co.,Ltd. |
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