CN212246414U - Contact oxidation device between gravels for purifying black and odorous water body - Google Patents
Contact oxidation device between gravels for purifying black and odorous water body Download PDFInfo
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- CN212246414U CN212246414U CN202020519126.0U CN202020519126U CN212246414U CN 212246414 U CN212246414 U CN 212246414U CN 202020519126 U CN202020519126 U CN 202020519126U CN 212246414 U CN212246414 U CN 212246414U
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Abstract
The utility model provides a purify black and odorous water's gravel inter-contact oxidation unit, including the district of intaking that sets gradually, gravel filler district I, gravel filler district II, settling zone, the upper portion in district of intaking is passed through filler district I water inlet intercommunication with the upper portion in gravel filler district I, and the lower part in gravel filler district I and the lower part in gravel filler district II are passed through filler district II water inlet intercommunication, and the upper portion in gravel filler district II and the upper portion in settling zone pass through settling zone water inlet intercommunication, the gravel packing layer has all been laid in gravel filler district I, gravel filler district II, and the bottom in gravel filler district I, gravel filler district II all is connected with the aeration subassembly. Contact oxidation unit between gravel mainly is applied to the quality of water purification after carrying out preliminary treatment (getting rid of rubbish and large-scale particulate matter) to black and odorous water, strong adaptability to water quality, processing load height, treatment effeciency height, last effectual, and the treatment cost is low.
Description
Technical Field
The utility model belongs to black and odorous water body administers the field, especially relates to a purify black and odorous water body's gravel contact oxidation unit.
Background
In the course of rapid urbanization and industrialization, the rapid rise of industry and the proliferation of urban population, a large amount of industrial wastewater and domestic sewage are generated. Because the water pollution control and treatment measures are lagged behind, some urban water bodies, especially water bodies in medium and small cities, directly become main discharge channels and places of industrial and domestic wastewater, so that the concentration of organic pollutants in the water bodies is increased, the eutrophication of the water bodies is caused, and black and odorous water bodies are formed.
The treatment method of black and odorous water generally comprises four types: physical, chemical, biological, and natural methods. The biological method is widely applied in practice because the method does not produce secondary pollution after treatment and does not produce adverse effect on water ecology. Biological methods generally include three types: and (4) feeding bacteria, biomembrane and aeration oxygenation. The fungus feeding method is generally suitable for water bodies with poor water flow state, and the medicament cost is high; the aeration and oxygenation are troublesome in the actual operation management; the biomembrane method is widely adopted in engineering, and the contact oxidation method of the ecological gravel bed is one of the biomembrane methods. The contact between gravel is an important process of a contact oxidation method, and related research and application are gradually widened in recent years due to the advantages of low cost, strong adaptability to water quality, good lasting effect, small occupied area and the like.
However, the application and research of the process in river treatment in China are still in the starting stage, and the existing contact oxidation device between gravels in China has low treatment efficiency, high cost and poor practicability to water quality.
Disclosure of Invention
In view of this, the utility model aims at providing a purify black and odorous water's gravel contact oxidation unit mainly is applied to the water purification after carrying out the preliminary treatment (getting rid of rubbish and large-scale particulate matter) to black and odorous water, to water quality strong adaptability, processing load height, treatment effeciency height, last effectual, and the treatment cost is low.
In order to achieve the above purpose, the technical scheme of the utility model is realized like this:
the utility model provides a purify black and odorous water's gravel inter-contact oxidation unit, is including the district of intaking that sets gradually, gravel filler district I, gravel filler district II, settling zone, the upper portion in district of intaking is passed through I water inlet intercommunication in filler district with the upper portion in gravel filler district I, and the lower part in gravel filler district I passes through II water inlets in filler district with the lower part in gravel filler district II and communicates, and the upper portion in gravel filler district II passes through settling zone water inlet intercommunication with the upper portion in settling zone, the gravel packing layer has all been laid in gravel filler district I, gravel filler district II, and the bottom in gravel filler district I, gravel filler district II all is connected with the aeration subassembly.
Furthermore, the vertical distance from the bottom of the water inlet of the packing area I to the bottom of the gravel packing area I is greater than the vertical distance from the top of the water inlet of the packing area II to the bottom of the gravel packing area I.
Furthermore, the gravel packing layer comprises a first gravel packing layer, a second gravel packing layer and a third gravel packing layer which are sequentially paved at the bottoms of the gravel packing region I and the gravel packing region II from bottom to top.
Further, the diameter of the gravel in the first gravel packing layer is 16-32mm, the diameter of the gravel in the second gravel packing layer is 8-16mm, and the diameter of the gravel in the third gravel packing layer is 4-8 mm.
Furthermore, the aeration component comprises an air compressor, a flow meter and an aeration pipe which are connected in sequence, and the aeration pipe is arranged at the bottoms of the gravel packing area I and the gravel packing area II.
Further, the aerator pipe is positioned below the first gravel packing layer.
Furthermore, the bottom of the settling zone is connected with a sludge storage pool, and the upper part of the settling zone is also connected with a water outlet.
Furthermore, a water inlet of the water inlet area is arranged at the top of the water inlet area.
Further, the flow meter is preferably a glass rotameter.
Further, the water inlet area is communicated with a water outlet of the pretreatment area, and the pretreatment area is used for placing black and odorous water bodies needing to be purified.
Further, the gravel packing layer has a porosity of 30-40%.
Compared with the prior art, the gravel contact oxidation device has the following advantages:
(1) contact oxidation unit between gravel mainly is applied to the quality of water purification after carrying out preliminary treatment (getting rid of rubbish and large-scale particulate matter) to black and odorous water, strong adaptability to water quality, processing load height, treatment effeciency height, last effectual, and the treatment cost is low.
(2) Contact oxidation unit between gravel, the height that highly is greater than II water inlets in filler district of I water inlet in filler district can utilize the system liquid level difference to make sewage flow in the device like this, controls sewage at purifier's water conservancy dwell time through the speed of controlling intaking.
(3) Contact oxidation unit between gravel, included the gravel filler district I of aeration simultaneously and the gravel filler district II of not aeration, make black and odorous water through the decomposition and the metabolism of good oxygen fungus and anaerobe, can degrade multiple type pollutant.
(4) Contact oxidation unit between gravel, according to the particle size that the gravel packed, take the form of layering to lay, improved black and odorous water's purification efficiency effectively.
(5) The gravel indirect contact oxidation device of the utility model has the advantages that the aeration intensity and the hydraulic retention time of the gravel packing area I can be determined according to the pollution degree of the black and odorous water body.
Drawings
The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:
FIG. 1 is a schematic view of a contact oxidation apparatus between gravels according to an embodiment of the present invention.
Description of reference numerals:
1-a water inlet area; 11-water inlet of water inlet area; 2-gravel packing zone I; 21-a water inlet of the filling area I; 3-gravel packing zone II; 31-a water inlet of the filling area II; 4-a precipitation zone; 41-water inlet of the settling zone; 5-water outlet; 6-gravel packing layer; 61-a first gravel packing layer; 62-a second gravel packing layer; 63-a third gravel packing layer; 7-a mud storage pool; 8-an aeration component; 81-air compressor; 82-a flow meter; 83-an aerator pipe; 9-a valve; 10-water pump.
Detailed Description
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
As shown in figure 1, the contact oxidation device between the gravels for purifying the black and odorous water body comprises a water inlet area 1, a gravel packing area I2, a gravel packing area II 3 and a settling area 4 which are sequentially arranged, wherein the upper part of the water inlet area 1 is communicated with the upper part of the gravel packing area I2 through a water inlet 21 of the packing area I, the lower part of the gravel packing area I2 is communicated with the lower part of the gravel packing area II 3 through a water inlet 31 of the packing area II, the upper part of the gravel packing area II 3 is communicated with the upper part of the settling area 4 through a water inlet 4 of the settling area, gravel packing layers 6 are respectively paved in the gravel packing area I2 and the gravel packing area II 3, and the bottoms of the gravel packing area I2 and the gravel packing area II 3 are respectively connected with an aeration assembly.
The device is mainly applied to water purification after pretreatment (removal of garbage and large particulate matters) of black and odorous water, and has the advantages of strong water quality adaptability, high treatment load, high treatment efficiency, good continuous effect and low treatment cost.
The aeration intensity and the hydraulic retention time of the gravel packing area I2 can be determined according to the pollution degree of the black and odorous water body.
The vertical distance from the bottom of the water inlet 21 of the packing area I to the bottom of the gravel packing area I2 is larger than the vertical distance from the top of the water inlet 31 of the packing area II to the bottom of the gravel packing area I2.
The height of the water inlet 21 of the filling area I is greater than that of the water inlet 31 of the filling area II, so that sewage can flow in the device by utilizing the liquid level difference of the system, and the hydraulic retention time of the sewage in the purification device is controlled by controlling the water inlet speed.
The gravel packing layer 6 comprises a first gravel packing layer 61, a second gravel packing layer 62 and a third gravel packing layer 63 which are sequentially paved at the bottoms of the gravel packing region I2 and the gravel packing region II 3 from bottom to top.
The diameter of the gravel in the first gravel packing layer 61 is 16-32mm, the diameter of the gravel in the second gravel packing layer 62 is 8-16mm, and the diameter of the gravel in the third gravel packing layer 63 is 4-8 mm.
According to the particle size of the gravel filler, the gravel filler is paved in a layered mode, so that the purification efficiency of the black and odorous water body is effectively improved.
Gravels with smooth shapes and uniform particle sizes are filled in the gravel filling area I2 and the gravel filling area II 3, and because a plurality of pores with different sizes exist among the gravels, the porosity is generally kept between 30 and 40 percent, and a continuous water flow channel can be formed.
When the sewage flows through the pores, the flow velocity is slowed down due to the blockage of the gravels, and suspended substances in the water contact with the gravels and settle within a short distance of the pores; meanwhile, the rough surface of the gravel also serves as a carrier for the attachment and growth of a biological membrane, the biological membrane contains a plurality of hydrophilic substances, and a water layer is often attached to the surface of the biological membrane, namely an attached water layer (water film). The outer side of the attached aqueous layer is covered with a flowing aqueous layer, and the two aqueous layers can exchange materials. The attachment layer is very thin, so that the adsorption of the biological membrane on organic matters is not influenced, and the organic matters are not limited to enter the biological membrane.
Along with the degradation of organic matters, cells are continuously synthesized, and the biological membrane is continuously thickened. When a certain thickness is reached, the diffusion of nutrient substances and oxygen to the deep part is blocked, aerobic microorganisms in the deep part die, the biomembrane is aged due to the appearance of an anaerobic layer, the adhesive force of the aged biomembrane is reduced, and the biomembrane falls off under the hydraulic scouring to complete a growth cycle. The growth cycle of "adsorption-growth-shedding" is continuously and alternately circulated on the gravel, thus maintaining its organic removal capacity at a high level. The sludge subjected to solid-liquid separation by sedimentation, adsorption and biological oxidation is retained in the gravel for biological decomposition, and the system design usually endows the sludge with a longer self-degradation time.
The aeration assembly 8 comprises an air compressor 81, a flow meter 82 and an aeration pipe 83 which are sequentially connected, and the aeration pipe 83 is arranged at the bottoms of the gravel packing area I2 and the gravel packing area II 3.
The aeration pipe 83 is located below the first gravel packing layer 61.
When in use, oxygen is introduced to the bottom of the gravel packing area I2 through the aeration component 8 to form an oxygen-enriched environment; oxygen does not need to be introduced into the gravel packing area II 3, so that the device simultaneously comprises the aerated gravel packing area I2 and the non-aerated gravel packing area II 3, and the black and odorous water body can degrade various pollutants through the decomposition and metabolism of aerobic bacteria and anaerobic bacteria.
The bottom of the settling zone 4 is connected with a sludge storage tank 7, and the upper part of the settling zone 4 is also connected with a water outlet 5.
The top of the water inlet area 1 is provided with a water inlet 11 of the water inlet area.
The specific operation process comprises the following steps:
before use, the membrane is hung, the device is started by adopting a mode of seed mud feeding, stuffy aeration and continuous water feeding culture, the gravel packing area I2 and the gravel packing area II 3 are not aerated, after one-end culture, a layer of gray and brown biological membrane attached to the surface of the packing and the inner wall of the device can be observed, and the completion of the membrane hanging is indicated when the quality of the discharged water is stable.
When the device is used, the gravel packing area I2 is aerated, the gravel packing area II 3 is not aerated, water in the water inlet area 1 flows into the gravel packing area I2 from the upper part, passes through the three gravel packing layers 6 with different particle sizes, flows into the lower part of the gravel packing area II 3 from the lower part of the gravel packing area I2, and then flows into the settling area 4 from the upper part of the gravel packing area II 3.
In order to ensure the effective operation of the device and avoid the blockage of the device, the sludge needs to be discharged regularly. When the sludge is discharged, the device normally feeds water, the aeration device is started in the gravel packing area II 3 in the non-aeration area, the deposited sludge is stirred up and discharged along with the fed water, and at the moment, the discharged water is switched to a sludge storage tank for storage and natural sedimentation.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a purify black smelly water's inter-gravel contact oxidation unit which characterized in that: including the district (1) of intaking that sets gradually, gravel packing district I (2), gravel packing district II (3), settling zone (4), the upper portion of intaking district (1) and the upper portion of gravel packing district I (2) are passed through I water inlet (21) intercommunication in packing district, and II water inlets (31) intercommunication in packing district are passed through with the lower part of gravel packing district II (3) in the lower part of gravel packing district I (2), and settling zone water inlet (41) intercommunication is passed through with the upper portion of settling zone (4) in the upper portion of gravel packing district II (3), gravel packing layer (6) have all been laid in I (2) of gravel packing district, gravel packing district II (3), and the bottom of gravel packing district I (2), gravel packing district II (3) all is connected with aeration subassembly (8).
2. The device for purifying a black and odorous water body by contact with pebbles according to claim 1, wherein: the vertical distance from the bottom of the water inlet (21) of the packing area I to the bottom of the gravel packing area I (2) is greater than the vertical distance from the top of the water inlet (31) of the packing area II to the bottom of the gravel packing area I (2).
3. The device for purifying a black and odorous water body by contact with pebbles according to claim 1, wherein: the gravel packing layer (6) comprises a first gravel packing layer (61), a second gravel packing layer (62) and a third gravel packing layer (63) which are sequentially paved at the bottoms of the gravel packing region I (2) and the gravel packing region II (3) from bottom to top.
4. The device for purifying a black and odorous water body by contact with pebbles according to claim 3, wherein: the diameter of the gravel in the first gravel packing layer (61) is 16-32mm, the diameter of the gravel in the second gravel packing layer (62) is 8-16mm, and the diameter of the gravel in the third gravel packing layer (63) is 4-8 mm.
5. The device for purifying a black and odorous water body by contact with pebbles according to claim 3, wherein: the aeration component (8) comprises an air compressor (81), a flow meter (82) and an aeration pipe (83) which are sequentially connected, wherein the aeration pipe (83) is arranged at the bottoms of the gravel packing area I (2) and the gravel packing area II (3).
6. The device for purifying a black and odorous water body by contact with pebbles according to claim 5, wherein: the aerator pipe (83) is positioned below the first gravel packing layer (61).
7. The device for purifying a black and odorous water body by contact with pebbles according to claim 1, wherein: the bottom of the settling zone (4) is connected with a sludge storage tank (7), and the upper part of the settling zone (4) is also connected with a water outlet (5).
8. The device for purifying a black and odorous water body by contact with pebbles according to claim 1, wherein: the top of the water inlet area (1) is provided with a water inlet (11) of the water inlet area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020519126.0U CN212246414U (en) | 2020-04-10 | 2020-04-10 | Contact oxidation device between gravels for purifying black and odorous water body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020519126.0U CN212246414U (en) | 2020-04-10 | 2020-04-10 | Contact oxidation device between gravels for purifying black and odorous water body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212246414U true CN212246414U (en) | 2020-12-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020519126.0U Expired - Fee Related CN212246414U (en) | 2020-04-10 | 2020-04-10 | Contact oxidation device between gravels for purifying black and odorous water body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212246414U (en) |
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2020
- 2020-04-10 CN CN202020519126.0U patent/CN212246414U/en not_active Expired - Fee Related
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Granted publication date: 20201229 |