CN105645552A - Sewage aeration treatment tower - Google Patents
Sewage aeration treatment tower Download PDFInfo
- Publication number
- CN105645552A CN105645552A CN201410645983.4A CN201410645983A CN105645552A CN 105645552 A CN105645552 A CN 105645552A CN 201410645983 A CN201410645983 A CN 201410645983A CN 105645552 A CN105645552 A CN 105645552A
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- Prior art keywords
- pipe
- tower body
- descending branch
- lifting section
- sewage
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- 239000010865 sewage Substances 0.000 title claims abstract description 70
- 238000005273 aeration Methods 0.000 title claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
- 230000008676 import Effects 0.000 claims abstract description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 20
- 239000000377 silicon dioxide Substances 0.000 claims description 10
- 230000002776 aggregation Effects 0.000 description 24
- 238000004220 aggregation Methods 0.000 description 24
- 239000007788 liquid Substances 0.000 description 6
- 238000005276 aerator Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000006479 redox reaction Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Landscapes
- Activated Sludge Processes (AREA)
Abstract
The invention provides a sewage aeration treatment tower, comprising: tower body (10), the top of tower body (10) is provided with sewage and advances mouth of pipe (11) and overflow pipe mouth (15), the bottom of tower body (10) is connected with drain pipe and intake pipe, the drain pipe includes first horizontal segment (121), first lift section (122) and first drop leg (123), the one end setting of first horizontal segment (121) is in tower body (10) and forms the import of drain pipe, first lift section (122) are connected and upwards extend with first horizontal segment (121), first drop leg (123) are connected and downwardly extending forms the export of drain pipe with first lift section (122), wherein, the junction of first lift section (122) and first drop leg (123) is less than overflow pipe mouth (15). The technical scheme of the invention effectively solves the problem that the water level control difficulty of the valve in the prior art is higher.
Description
Technical field
The present invention relates to technical field of sewage, in particular to a kind of sewage aeration treating column.
Background technology
Oilfield chemistry drives sewage frequently with Air Exposure ingredients sewage, and the main purpose of above-mentioned processing mode is to reduce the Fe in water2+��HS-And S2-Degraded to polymer.
As it is shown in figure 1, oilfield sewage of the prior art is except Fe2+��HS-And S2-Aerating oxidation tower by aeration tower body 10 ', sewage inlet pipe 11 ', air inlet pipe, drain pipe 12 ', receive the parts such as water coil, collection tank, gas-solid-liquid isolating construction, oil exit pipe and constitute.
In said structure, sewage inlet pipe is arranged on the top of aeration tower body, the parts such as drain pipe are arranged on the bottom of aeration tower body, sewage from top to bottom flows, gas flows from the bottom to top, sewage and gas are mutually mixed, react, and then are removed Fe2+, HS-and S2-in sewage by redox reaction, reach can again with target.
As it is shown in figure 1, the water level in Air Exposure tower is controlled by the valve of water outlet. Owing to outlet is positioned at bottom, pressure can be relatively larger, when the water level in Air Exposure tower is higher, relatively big by Valve controlling water level difficulty, controls bad sewage easily from overflow pipe overflow. So it is difficult to ensure that keep high liquid level and not easily from overflow pipe overflow during aerating oxidation tower normal operation.
Summary of the invention
It is desirable to provide a kind of sewage aeration treating column, to solve the problem that in prior art, Valve controlling water level difficulty is bigger.
To achieve these goals, the invention provides a kind of sewage aeration treating column, including: tower body, the top of tower body is provided with sewage inlet pipe mouth and the overflow mouth of pipe, the bottom of tower body is connected to drain pipe and air inlet pipe, drain pipe includes the first horizontal segment, first lifting section and the first descending branch, one end of first horizontal segment is arranged in tower body and forms the import of drain pipe, first lifting section is connected with the first horizontal segment and upwardly extends, first descending branch lifts section with first and is connected and is downwardly extending the outlet of drain pipe, wherein, the junction of the first lifting section and the first descending branch is lower than the overflow mouth of pipe.
Further, it is provided with the first linkage section between the first lifting section and the first descending branch.
Further, it is provided with water level adjustable plate in the first linkage section.
Further, water level adjustable plate in the vertical direction is movably disposed in the first linkage section.
Further, the first lifting section is parallel with the longitudinal axis of tower body with the first descending branch.
Further, the top of tower body is also associated with row's scum silica frost mouth of pipe, and the junction of the first lifting section and the first descending branch is between the overflow mouth of pipe and row's scum silica frost mouth of pipe.
Further, air inlet pipe includes the second horizontal segment, the second lifting section and the second descending branch, second lifting section upwardly extends, the import of the second lifting section forms the import of air inlet pipe, one end of second horizontal segment is arranged in tower body and forms the outlet of air inlet pipe, second descending branch is connected between the second horizontal segment and the second lifting section, and wherein, the junction of the second lifting section and the second descending branch is higher than the junction of the second lifting section and the second descending branch.
Further, the junction of the second lifting section and the second descending branch is higher than the overflow mouth of pipe.
Further, it is provided with the second linkage section between the second lifting section and the second descending branch.
Further, the second lifting section is parallel with the longitudinal axis of tower body with the second descending branch.
Application technical scheme, drain pipe, except including the first horizontal segment, also includes upwardly extending first lifting section and the first descending branch downwardly extended. According to law of connected vessels, when injecting sewage in tower body, the water level in tower body and the level in the first lifting section are in identical height. As shown in the above, the extreme higher position of the first lifting section determines the height of sewage in tower body. So, by first lift section height set just can well by the water lev el control of pending sewage on required height. In the present invention, the junction of the first lifting section and the first descending branch is lower than the overflow mouth of pipe. That is the extreme higher position of the section of lifting is lower than the overflow mouth of pipe. This makes it possible to ensure that sewage is not easily from overflow pipe overflow under normal operation. Can from lifting the first descending branch discharge that section is connected with first after sewage reaches the extreme higher position of the first lifting section. As shown in the above, the sewage aeration treating column of the present invention can carry out water lev el control simply, and ensure that stable level.
Accompanying drawing explanation
The Figure of description constituting the part of the application is used for providing a further understanding of the present invention, and the schematic description and description of the present invention is used for explaining the present invention, is not intended that inappropriate limitation of the present invention. In the accompanying drawings:
Fig. 1 illustrates the structural representation of sewage aeration treating column of the prior art;
Fig. 2 illustrates the structural representation of the embodiment of the sewage aeration treating column according to the present invention; And
Fig. 3 illustrates the A place enlarged diagram of the sewage aeration treating column of Fig. 2.
Above-mentioned accompanying drawing includes the following drawings labelling:
10 ', aeration tower body; 11 ', sewage inlet pipe; 12 ', drain pipe; 10, tower body; 11, sewage inlet pipe mouth; 121, the first horizontal segment; 122, the first lifting section; 123, the first descending branch; 124, the first linkage section; 125, water level adjustable plate; 131, the second horizontal segment; 132, the second lifting section; 133, the second descending branch; 134, the second linkage section; 14, blow-off pipe; 15, the overflow mouth of pipe; 16, row's scum silica frost mouth of pipe; 20, aggregation apparatus;30, blender; 40, circulating barrel.
Detailed description of the invention
It should be noted that when not conflicting, the embodiment in the application and the feature in embodiment can be mutually combined. Describe the present invention below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
It it is noted that described further below is all exemplary, it is intended to provide further instruction to the application. Unless otherwise, all technology used herein and scientific terminology have the identical meanings being generally understood that with the application person of an ordinary skill in the technical field.
It should be noted that term used herein above merely to describe detailed description of the invention, and be not intended to the restricted root illustrative embodiments according to the application. As used herein, unless the context clearly indicates otherwise, otherwise singulative is also intended to include plural form, in addition, it is to be further understood that, when use belongs to " comprising " and/or " including " in this manual, it indicates existing characteristics, step, operation, device, assembly and/or their combination.
It should be noted that term " first " in the description and claims of this application and above-mentioned accompanying drawing, " second " etc. are for distinguishing similar object, without being used for describing specific order or precedence. Should be appreciated that the data of so use can be exchanged in the appropriate case, in order to presently filed embodiment described herein such as can with except here diagram or describe those except order implement. In addition, term " includes " and " having " and their any deformation, it is intended to cover non-exclusive comprising, such as, contain series of steps or the process of unit, method, system, product or equipment be not necessarily limited to those steps or the unit clearly listed, but can include clearly not listing or for intrinsic other step of these processes, method, product or equipment or unit.
For the ease of describing, here can use space relative terms, as " ... on ", " in ... top ", " at ... upper surface ", " above " etc., be used for describing the spatial relation of a device or feature and other devices or feature as shown in the figure. It should be appreciated that space relative terms is intended to the different azimuth in use or operation comprised except the orientation that device is described in the drawings. Such as, " in other devices or structure lower section " or " under other devices or structure " will be positioned as after if the device in accompanying drawing is squeezed, being then described as the device of " above other devices or structure " or " on other devices or structure ". Thus, exemplary term " in ... top " can include " in ... top " and " in ... lower section " two kinds of orientation. This device can also other different modes location (90-degree rotation or be in other orientation), and space used herein above described relatively make respective explanations.
As in figure 2 it is shown, the sewage aeration treating column of the present embodiment includes tower body 10. The top of this tower body 10 is provided with sewage inlet pipe mouth 11 and the overflow mouth of pipe 15. This sewage inlet pipe mouth 11 enters in tower body 10 for treatment sewage. This overflow mouth of pipe 15 is used for connecting overflow pipe, and this overflow pipe is for controlling the peak level of the sewage in tower body 10, and when wastewater level reaches the position of this overflow mouth of pipe 15, sewage can flow out from the overflow mouth of pipe 15.The bottom of tower body 10 is connected to drain pipe and air inlet pipe. Drain pipe is discharged outside tower body 10 for the sewage that will have processed. Air inlet pipe is for passing into the gas mixed with treatment sewage to tower body 10, in order to carry out redox reaction with sewage.
In the present embodiment, drain pipe includes first horizontal segment the 121, first lifting section 122 and the first descending branch 123. In above-mentioned parts, one end of the first horizontal segment 121 is arranged in tower body 10 and forms the import of drain pipe. First lifting section 122 is connected with the first horizontal segment 121 and upwardly extends. First descending branch 123 lifts section 122 with first and is connected and is downwardly extending the outlet of drain pipe. Wherein, the junction of the first lifting section 122 and the first descending branch 123 is lower than the overflow mouth of pipe 15.
The technical scheme of application the present embodiment, drain pipe, except including the first horizontal segment 121, also includes upwardly extending first lifting section 122 and the first descending branch 123 downwardly extended. According to law of connected vessels, when injecting sewage in tower body 10, the water level in tower body 10 and the level in the first lifting section 122 are in identical height. As shown in the above, the extreme higher position of the first lifting section 122 determines the height of sewage in tower body 10. So, by first lift section 122 height set just can well by the water lev el control of pending sewage on required height.
In the present embodiment, the junction of the first lifting section 122 and the first descending branch 123 is lower than the overflow mouth of pipe 15. That is the extreme higher position of the first lifting section 122 is lower than the overflow mouth of pipe 15. This makes it possible to ensure that sewage is not easily from overflow pipe overflow under normal operation. Can discharge from the first descending branch 123 being connected with the first lifting section 122 after sewage reaches the extreme higher position of the first lifting section 122. As shown in the above, the sewage aeration treating column of the present embodiment can carry out water lev el control simply, and ensure that stable level.
As shown in Figure 2 to Figure 3, in the present embodiment, it is provided with the first linkage section 124 between the first lifting section 122 and the first descending branch 123. The setting of the first linkage section 124 makes to be easier between the first lifting section 122 and the first descending branch 123 connect.
For the ease of the water level of tower body 10 is adjusted, as it is shown on figure 3, in the present embodiment, in the first linkage section 124, it is provided with water level adjustable plate 125. Just can discharge from the first descending branch 123 when water level is higher than water level adjustable plate 125.
In order to carry out water level adjustment more easily, water level adjustable plate 125 in the vertical direction is movably disposed in the first linkage section 124. In the present embodiment, being provided with two installing plates being oppositely arranged in the first linkage section 124, water level adjustable plate 125 is movably disposed between two installing plates. The movement of water level adjustable plate 125 in the vertical direction is realized by regulating water level adjustable plate 125 position on a mounting board. Certainly, the mode installing water level adjustable plate 125 is not limited to aforesaid way.
As in figure 2 it is shown, in the present embodiment, for simple installation, the first lifting section 122 is parallel with the longitudinal axis of tower body 10 with the first descending branch 123.
As in figure 2 it is shown, in the present embodiment, the top of tower body 10 is also associated with row's scum silica frost mouth of pipe 16, and the junction of the first lifting section 122 and the first descending branch 123 is between the overflow mouth of pipe 15 and row's scum silica frost mouth of pipe 16. So can make water lev el control position between the overflow mouth of pipe 15 and row's scum silica frost mouth of pipe 16, it is simple to the scum silica frost in sewage is discharged from row's scum silica frost mouth of pipe 16.
In the prior art, admission line is arranged on the top of drain pipe, prevents sewage from carrying out to admission line by check valve. And the problem that sewage can be occurred to flow backwards when check valve seals not good in prior art. If sewage flows backward in aerator, aerator can be caused to damage.
The technical scheme of the present embodiment solves the problems referred to above well. Specifically, as in figure 2 it is shown, in the present embodiment, air inlet pipe includes the second horizontal segment 131, second and lifts section 132 and the second descending branch 133. Second lifting section 132 upwardly extends, the import of the second lifting section 132 forms the import of air inlet pipe, one end of second horizontal segment 131 is arranged in tower body 10 and forms the outlet of air inlet pipe, and the second descending branch 133 is connected between the second horizontal segment 131 and the second lifting section 132. Wherein, the junction of the second lifting section 132 and the second descending branch 133 is higher than the junction of the second lifting section 132 and the second descending branch 133.
In the present embodiment, the junction of the second lifting section 132 and the second descending branch 133 is higher than the junction of the second lifting section 132 and the second descending branch 133. That is the junction of the second lifting section 132 and the second descending branch 133 can be higher than the water level in tower body 10. Such that when making check valve seal not good sewage entrance air inlet pipe, flow backward to aerator without along along air inlet pipe, only can rest in the second descending branch 133.
In order to further ensure that sewage will not flow backward to aerator, the junction of the second lifting section 132 and the second descending branch 133 is higher than the overflow mouth of pipe 15. Water level in tower body 10 will not the overflow mouth of pipe 15, and then aerator will not be flowed backward to.
As in figure 2 it is shown, in the present embodiment, it is provided with the second linkage section 134 between the second lifting section 132 and the second descending branch 133. The setting of the second linkage section 134 makes to be easier between the second lifting section 132 and the second descending branch 133 connect.
As in figure 2 it is shown, in the present embodiment, for simple installation, the second lifting section 132 is parallel with the longitudinal axis of tower body 10 with the second descending branch 133.
As in figure 2 it is shown, the sewage aeration treating column of the present embodiment also includes: aggregation apparatus 20 and blender 30. Aggregation apparatus 20 is fixedly installed on the middle part of tower body 10, and the two ends of aggregation apparatus 20 are hatch frame, and aggregation apparatus 20 extends with gradually tapering up from bottom to top. The aggregation apparatus 20 of said structure can make up air accumulation, can make upper shed place concentrating on aggregation apparatus 20 that descending sewage is relative simultaneously, and then be conducive to both to mix, and then prevent inclined exposure. Blender 30 is arranged in aggregation apparatus 20. Blender 30 is for being sufficiently mixed gas and liquid further.
Aggregation apparatus 20 and blender 30 it is provided with at the middle part of tower body 10. Aggregation apparatus 20 can make up air accumulation, can make upper shed place concentrating on aggregation apparatus 20 that descending sewage is relative simultaneously, and then be conducive to both to mix, and gas-liquid counter current is fully contacted, and then prevents inclined exposure. Blender 30 is arranged in aggregation apparatus 20. Blender 30 is for being sufficiently mixed gas and liquid further. So, the technical scheme of the present embodiment can efficiently solve and mix uneven in prior art between sewage and gas, contacts insufficient problem.
As in figure 2 it is shown, in the present embodiment, drain pipe be further arranged below blow-off pipe 14. In order to further improve the treatment effect of sewage, in the present embodiment, sewage aeration treating column also includes circulating barrel 40, and this circulating barrel 40 is fixedly installed in tower body 10 also and forms circulation canal between the inwall of tower body 10, and circulating barrel 40 is positioned at the top of aggregation apparatus 20.Owing to being provided with this circulating barrel 40, gas can drive sewage internal up in circulating barrel 40 after being advanced into circulating barrel 40 inside on aggregation apparatus, flow in the circulation canal of inwall of circulating barrel 40 and tower body 10 after flowing out from the top exit of circulating barrel 40, constantly circulation, makes the long-time repeated action of gas-liquid.
Above-mentioned aggregation apparatus 20 and the synergism of circulating barrel 40, it is possible to make obvious processing effect improve. By foregoing it can be seen that sewage is assembling and being fully contacted with air in cyclic process, react, remove the Fe in sewage2+��HS-And S2-, treatment effect increases substantially.
In the present embodiment, circulating barrel 40 is straight-tube shape. This circulating barrel 40 is thin wall cylinder, and its diameter is between the diameter of two openings of aggregation apparatus 20. In the present embodiment, the diameter of circulating barrel 40, slightly larger than the diameter of the open top end of aggregation apparatus 20, so can ensure that the gas after being aggregated is directly entered to circulating barrel 40 from aggregation apparatus 20, reduces the risk of exposure partially.
As in figure 2 it is shown, aggregation apparatus 20 is in frustum. Aggregation apparatus 20 is preferably revolving meber, and in the present embodiment, the revolution bus of aggregation apparatus 20 is straight line. Certainly, in unshowned in the drawings embodiment, the revolution bus of aggregation apparatus 20 can also be camber line. In the present embodiment, aggregation apparatus 20 includes three sections from the bottom to top, is big footpath direct tube section, conical cylinder section and path direct tube section respectively. Wherein conical cylinder section plays certain aggregation, big footpath direct tube section and path direct tube section and plays certain guide effect.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations. All within the spirit and principles in the present invention, any amendment of making, equivalent replacement, improvement etc., should be included within protection scope of the present invention.
Claims (10)
1. a sewage aeration treating column, including:
Tower body (10), the top of described tower body (10) is provided with sewage inlet pipe mouth (11) and the overflow mouth of pipe (15), and the bottom of described tower body (10) is connected to drain pipe and air inlet pipe,
It is characterized in that,
Described drain pipe includes the first horizontal segment (121), the first lifting section (122) and the first descending branch (123), one end of described first horizontal segment (121) is arranged in described tower body (10) and forms the import of described drain pipe, described first lifting section (122) is connected with described first horizontal segment (121) and upwardly extends, described first descending branch (123) lifts section (122) with described first and is connected and is downwardly extending the outlet of described drain pipe
Wherein, the junction of described first lifting section (122) and described first descending branch (123) is lower than the described overflow mouth of pipe (15).
2. sewage aeration treating column according to claim 1, it is characterised in that be provided with the first linkage section (124) between described first lifting section (122) and described first descending branch (123).
3. sewage aeration treating column according to claim 2, it is characterised in that be provided with water level adjustable plate (125) in described first linkage section (124).
4. sewage aeration treating column according to claim 3, it is characterised in that described water level adjustable plate (125) in the vertical direction is movably disposed in described first linkage section (124).
5. the sewage aeration treating column according to Claims 2 or 3 or 4, it is characterised in that described first lifting section (122) is parallel with the longitudinal axis of described tower body (10) with described first descending branch (123).
6. sewage aeration treating column according to claim 1, it is characterized in that, the top of described tower body (10) is also associated with row's scum silica frost mouth of pipe (16), and the junction of described first lifting section (122) and described first descending branch (123) is positioned between the described overflow mouth of pipe (15) and described row's scum silica frost mouth of pipe (16).
7. sewage aeration treating column according to claim 1, it is characterized in that, described air inlet pipe includes the second horizontal segment (131), second lifting section (132) and the second descending branch (133), described second lifting section (132) upwardly extends, the import of described second lifting section (132) forms the import of described air inlet pipe, one end of described second horizontal segment (131) is arranged in described tower body (10) and forms the outlet of described air inlet pipe, described second descending branch (133) is connected between described second horizontal segment (131) and described second lifting section (132), wherein, the junction of described second lifting section (132) and described second descending branch (133) is higher than the junction of described second lifting section (132) and described second descending branch (133).
8. sewage aeration treating column according to claim 7, it is characterised in that the junction of described second lifting section (132) and described second descending branch (133) is higher than the described overflow mouth of pipe (15).
9. sewage aeration treating column according to claim 7, it is characterised in that be provided with the second linkage section (134) between described second lifting section (132) and described second descending branch (133).
10. sewage aeration treating column according to claim 7, it is characterised in that described second lifting section (132) is parallel with the longitudinal axis of described tower body (10) with described second descending branch (133).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410645983.4A CN105645552A (en) | 2014-11-12 | 2014-11-12 | Sewage aeration treatment tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410645983.4A CN105645552A (en) | 2014-11-12 | 2014-11-12 | Sewage aeration treatment tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105645552A true CN105645552A (en) | 2016-06-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410645983.4A Pending CN105645552A (en) | 2014-11-12 | 2014-11-12 | Sewage aeration treatment tower |
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| Country | Link |
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| CN (1) | CN105645552A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1110190A (en) * | 1997-06-25 | 1999-01-19 | Hitachi Plant Eng & Constr Co Ltd | Upward flow anaerobic treatment device |
| CN101172696A (en) * | 2007-11-02 | 2008-05-07 | 中国农业大学 | Air-water combined siphonage bidirectional backwash technique and device |
| CN201686517U (en) * | 2010-05-11 | 2010-12-29 | 北京三益生态环境工程有限公司 | Integrated and efficient air flotation device |
| CN202415213U (en) * | 2011-12-22 | 2012-09-05 | 湖州德翔环境科技有限公司 | Backflow preventing structure of tower body for water treatment |
| CN202880987U (en) * | 2012-11-23 | 2013-04-17 | 南京格洛特环境工程有限公司 | Catalytic oxidation tower for treating rare earth wastewater |
-
2014
- 2014-11-12 CN CN201410645983.4A patent/CN105645552A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1110190A (en) * | 1997-06-25 | 1999-01-19 | Hitachi Plant Eng & Constr Co Ltd | Upward flow anaerobic treatment device |
| CN101172696A (en) * | 2007-11-02 | 2008-05-07 | 中国农业大学 | Air-water combined siphonage bidirectional backwash technique and device |
| CN201686517U (en) * | 2010-05-11 | 2010-12-29 | 北京三益生态环境工程有限公司 | Integrated and efficient air flotation device |
| CN202415213U (en) * | 2011-12-22 | 2012-09-05 | 湖州德翔环境科技有限公司 | Backflow preventing structure of tower body for water treatment |
| CN202880987U (en) * | 2012-11-23 | 2013-04-17 | 南京格洛特环境工程有限公司 | Catalytic oxidation tower for treating rare earth wastewater |
Non-Patent Citations (2)
| Title |
|---|
| 张宝军等: "《建筑给水排水工程》", 29 February 2008, 武汉理工大学出版社 * |
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Application publication date: 20160608 |