CN108025936B - Device for biologically cleaning liquids with a loop reactor - Google Patents
Device for biologically cleaning liquids with a loop reactor Download PDFInfo
- Publication number
- CN108025936B CN108025936B CN201680051285.9A CN201680051285A CN108025936B CN 108025936 B CN108025936 B CN 108025936B CN 201680051285 A CN201680051285 A CN 201680051285A CN 108025936 B CN108025936 B CN 108025936B
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- liquid
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/22—Activated sludge processes using circulation pipes
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2203/00—Apparatus and plants for the biological treatment of water, waste water or sewage
- C02F2203/006—Apparatus and plants for the biological treatment of water, waste water or sewage details of construction, e.g. specially adapted seals, modules, connections
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/22—Activated sludge processes using circulation pipes
- C02F3/223—Activated sludge processes using circulation pipes using "air-lift"
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Abstract
The invention relates to a device for biologically cleaning a liquid by adding a gas, comprising: a reactor vessel (1) for containing a liquid (2), the reactor vessel having a venting zone (3) in a lower section of the vessel and a reaction zone (4) in an upper section of the vessel; a liquid input port; a liquid discharge port (12); a gas inlet opening into the aeration region (3); a tube (8) extending in the vertical direction in the reaction zone (4) and being provided for separating opposing liquid flows on the one hand on its outer side and on the other hand on its inner side from one another, wherein the reaction zone (4) has a liquid calming zone (10) above the upper end of the tube (8). According to the invention, a plurality of modules (5) each having a tube (8) and a gas inlet are arranged in the reactor vessel (1).
Description
Technical Field
The invention relates to a device for biologically cleaning a liquid by adding a gas, comprising: a reactor vessel for containing a liquid, the reactor vessel having a material transport region in a lower section of the vessel and a reaction region in an upper section of the vessel; a liquid input port; a liquid discharge port; a gas inlet opening into the material transport region and a tube extending in the vertical direction in the reaction region, which is provided for separating opposing liquid flows on the one hand on its outer side and on the other hand on its inner side from one another, wherein the reaction region has a liquid calming zone above the upper end of the tube.
Background
The apparatus is preferably a reactor arranged for cleaning waste water with bacteria. The apparatus may accordingly also be referred to as a bioreactor or a detoxification reactor.
In terms of basic mode of action and apparatus construction, the invention relates in particular to the design of what is known as a jet zone loop reactor (SZR reactor).
The device according to the invention in the form of a bioreactor is provided in practice for the conversion and thus for the decomposition of different harmful substances. The bioreactor can, for example, be operated with aerobic bacteria, for which purpose the liquid to be cleaned, in particular the waste water, must be mixed as well as possible with air or other oxygen-containing gas.
Such a device is known from DE 19842332 a 1. The device for biological waste water cleaning has a material transport region for introducing a gaseous oxidizing agent, in particular air, into the liquid to be cleaned. Particularly intimate mixing of the gas and the liquid can be achieved by means of a turbulent circulation, wherein the liquid to be cleaned, including bacteria and gas, is conveyed to the two-substance nozzle. The liquid is guided in such a way that a turbulent flow occurs, which achieves intimate mixing.
The mixture of air, contaminated wastewater and bacteria present in the reactor rises after intimate mixing outside the vertically extending tubes in the reaction zone. When the mixture reaches the surface, the gas (e.g. air) contained in the mixture in the form of small bubbles is at least partially re-released, whereby the density of the mixture becomes greater. After the gas has been released, the mixture with the greater density can fall back again through the inner cross section of the pipe in the direction of the two-substance nozzle, whereby a circulating flow is generated. This circulating flow is also called a circulating flow. The concept of inserting tubes and collars is also common in the art due to the arrangement and function of the tubes.
The device is preferably designed such that the residence time of the liquid to be cleaned in the material transport region is relatively short, and the gas/air mixture, which is subsequently intimately mixed, rises in the reaction region over a relatively long period of time, as a result of which the biological decomposition of the harmful substances by means of bacteria takes place during the rising of the mixture.
The device can be used not only for cleaning domestic waste water, but also, if the process is suitable, for biologically cleaning highly contaminated industrial waste water, such as coking plant waste water, which is contaminated with nitrogen compounds, cyanides, phenols and sulfides.
Corresponding processes are known from WO 2012/139917A 2. Coking plant waste water is a particularly problematic industrial waste water due to the high content of toxic contents which hinder nitrification. In the treatment using the conventional biological method, a bioreactor of a concrete pool construction type, which is light in load and thus large in volume, is required. Sensitive biological processes, such as nitration, are always endangered by the impact loading of harmful substances, such as cyanides and phenols. By dividing the treatment into a first and a second biological stage, sensitive, slow growing autotrophic bacteria are protected from damage from cyanide, phenols and other foreign substances. The first biological stage serves to eliminate toxins, where substances which hinder nitrification, such as cyanide, are decomposed. Then membrane filtration is performed, which separates the bacteria of the first stage from the bacteria of the second stage, which may constitute different bacterial types. In the second stage, nitrogen is decomposed by nitrification, denitrification and subsequent aeration.
Known SZR bioreactors have a cylindrical shell, which is typically made of steel. The narrow technical boundary conditions are to be taken into account when designing a specific flow volume on the basis of the described operating mode of the SZR bioreactor, since the range specified for the ratio between the shell diameter and the height must be adhered to. Accordingly, correspondingly large reactor heights occur at large flow volumes, wherein a plurality of individual SZR bioreactors may alternatively be arranged separately from one another.
Disclosure of Invention
Against this background, the object of the invention is to provide a compact construction of a device for biologically cleaning liquids by means of gas introduction, wherein a flexible adaptation to different volume flows and available construction spaces is also to be achieved during the design.
The solution of the subject and object of the invention is a device according to claim 1.
Starting from a device of this type having the features described at the outset, it is provided according to the invention that a plurality of modules each having a tube, a two-substance nozzle and a gas inlet are arranged in the reactor vessel. The individual modules can be dimensioned in such a way that optimum operation is achieved. Within the framework of the invention, a plurality of modules which are arranged together in a reactor vessel are arranged next to one another, which makes it possible to achieve a particularly efficient design compared to a plurality of individual bioreactors separated from one another. The modules arranged side by side form a bundle of reactor spaces.
The modules are preferably separated by a partition wall at the level of the tubes in the material transport region and the reaction region, wherein the reactor vessel forms a cocurrent section common to all modules in the liquid calming zone above the partition wall, to which a liquid discharge is connected. The function of the modules separated from one another by the partition walls (if there are only two modules, only one partition wall is sufficient) is no different from the devices known from the prior art for biological purification of liquids by gas introduction. However, these modules share a common reactor vessel, wherein the partition wall only has to prevent overflow of liquid in the lower region of the reactor vessel and can be implemented to be correspondingly thin. A simple iron plate can also be provided as a partition wall according to different embodiments.
According to the preferred embodiment described, the modules open upwards, wherein the liquid ballast zone above the partition wall forms a common flow section for all modules. That is to say that the liquid rising above the partition wall can flow freely and be divided into different liquid streams as desired. The cleaned liquid corresponding to the amount of waste water added through the liquid inlet is usually continuously withdrawn through the liquid discharge.
As mentioned at the outset, the majority of the liquid is recirculated from the liquid ballast region back through the tubes of the module and is thus conducted in a circulating manner.
In order to achieve particularly intimate mixing in the material transport region, it is also advantageous if the liquid is extracted from the liquid calming region and then conveyed under pressure together with the gas to a two-component nozzle which opens into the material transport region and in this case ejects the mixture downward and to the side, as a result of which the mixture can rise in the manner described outside the tube.
According to a preferred embodiment of the invention, three fluid fractions, namely the liquid which has fallen back into the tube, the liquid which has been withdrawn for the pressurized transport together with the gas to the two-substance nozzle and the cleaned liquid which has been withdrawn via the liquid outlet, are present from the liquid ballast region.
Within the framework of the invention, the extracted fraction can be led off together with the fraction fed to the two-component nozzle and then separated or from the beginning through separate channels, the latter being preferred.
The partition wall also enables only a part of the modules to be operated, although the modules are arranged in a common reactor vessel. Some modules may be temporarily shut down for maintenance purposes or when the liquid flow is small. The gas inlet and, if necessary, the inlet for the liquid-bacteria mixture to the two-substance nozzle need to be closed off by suitable valves, with the use of regulating valves, regulating valves and/or adjustable pumps connected to a central process control being preferred for flexible process operation.
Within the framework of the invention, the modules can be arranged in different ways. For example, two or more modules may be arranged in a line alongside one another. A dense and substantially symmetrical packing arrangement of the modules may result in a particularly space-saving and efficient arrangement.
Against this background, a preferred embodiment of the invention provides that the modules bounded by the partition wall and possibly the outer wall of the reactor vessel each have the shape of a regular polygon in horizontal cross section. The modules may for example have a symmetrical hexagonal shape, wherein for example six modules form a ring. In the middle of such a ring, a plane with the same cross section is maintained, so that additional modules or center spillways can be optionally arranged here. The construction of the centre spillway is naturally also possible when more or less than six modules are grouped in a uniform arrangement in a ring.
The central overflow can be provided both as a liquid discharge for the cleaned liquid to be discharged and for the circulation of the liquid transported to the two-substance nozzle.
Irrespective of the specific configuration chosen, for example three to 12 modules can be arranged in the reactor vessel.
According to a preferred embodiment of the invention, it is additionally provided that the gas supply openings are each guided from above through the corresponding tube of the respective module, as a result of which no side connections can be provided in the reactor vessel. The gas entry port can thus be designed in the form of a lance.
As already explained, if the gas inlet opening of the module opens into a two-substance nozzle in the substance transport region, the corresponding lance structure can also have separate cross sections for the liquid to be cleaned or the circularly conducted liquid and the gas, wherein the liquid to be cleaned, including bacteria, is also conveyed to this two-substance nozzle outside the gas removal system.
According to a preferred embodiment of the invention, the reactor vessel is at least partially made of concrete, and the outer wall and the partition wall are both made of concrete, wherein concrete is generally locally available and relatively inexpensive when constructing the plant compared to steel. No high demands are made on the production of reactor vessels which are at least partly made of concrete, so that a suitable construction can be built up by means of simple enclosing plates.
The previously described introduction of gas and, if necessary, of a liquid guided in a circulating manner from above via the lance structure is particularly advantageous, in particular when the reactor vessel is at least partially made of concrete, because then no or at least only a small number of connections need to be provided at least in the lower region of the reactor vessel, which leads to high costs and potential weak points in the concrete design.
During operation of the device, a plurality of harmful substances are preferably transformed by bacteria. For example, the cyanide component and the hydrocarbon component can be converted in a first stage into ammonium ions (NH)4 +). In a second stage, the ammonium ions formed and those which were initially present in the waste water are converted into Nitrates (NO)3). In principle, however, other biological and/or chemical reactions can also be provided in the device.
By using a plurality of modules according to the invention, not only space savings are achieved but in particular a limitation of the height necessary for the device is achieved. Furthermore, a simplification in terms of piping is also possible in comparison with a plurality of devices separated from one another, wherein it has already been stated previously that a central overflow can be provided in the annular arrangement of the modules. Furthermore, the inlet duct and the outlet duct can be branched relatively short. Furthermore, it is also possible to operate all modules with a common pump, compressor or the like.
According to another aspect of its inventive significance and which brings about an improvement in this known apparatus, an equalization chamber is connected to the reactor vessel by a liquid connection, wherein the liquid connection is arranged above the liquid discharge opening and wherein the equalization chamber has a permeate introduction opening and a permeate flow outlet above the liquid connection. The permeate (filtrate) of the membrane filtration, which is arranged after the cleaning of the waste water in the device according to the invention, can for example be collected in the balancing chamber. For example, ultrafiltration may be used.
The technical expenditure for controlling the level in the device and for controlling the excess permeate can be greatly reduced by the balancing chamber. In conjunction with bioreactors, membrane filtration may be used in biological wastewater treatment to recover bacteria. However, the throughput of the membrane filtration cannot be adjusted at will, since a specific excess flow rate is always required, so that the membrane does not become clogged. It is possible that excessive permeate may accumulate when filtration is performed at a minimum excess flow rate when the process is unstable. If the permeate produced in excess is sent entirely to the next process step, no continuous overflow can be produced in the former apparatus in the form of a bioreactor. Then too much water may be supplied to a post-treatment step which may result in a full flow or overflow. In addition, an unstable reactor overflow can also lead to a malfunction of the filtration apparatus, since a minimum excess flow rate can no longer be guaranteed.
By connecting the equilibration chamber to the reactor vessel via a liquid connection according to this further aspect of the invention, the liquid level in the reactor vessel is level with the liquid level in the permeate collection chamber. Whereby the liquid level in the reactor cannot drop. A uniform overflow is thus obtained and no excess water is transported to the next treatment step. Here the permeate may be refluxed to the reactor vessel.
The permeate inlet and the permeate outlet are arranged on the balancing chamber in such a way that an inflow of uncleaned liquid into the balancing chamber and the permeate outlet is avoided.
Drawings
The invention will be explained below with the aid of a drawing which shows only one embodiment. In the figure:
figure 1 shows a vertical cross-section of an apparatus for biologically cleaning a liquid by adding a gas according to the invention,
figure 2 shows a horizontal section of the device according to figure 1,
figure 3 shows a vertical section through an alternative design of the device according to the invention,
fig. 4 shows a horizontal cross-section of the device according to fig. 1 along line AA of fig. 3.
Detailed Description
Fig. 1 and 2 show a first embodiment of the device according to the invention in the form of a bioreactor for biologically cleaning waste water by adding gas, in particular air. Depending on the mode of operation, this apparatus is also referred to as an SZR bioreactor (jet zone loop reactor), since, as will be explained in more detail below, a circular circulation of fluid is produced in the apparatus.
The plant has a reactor vessel 1 for receiving a liquid 2, wherein a material transport region 3 is provided in the lower section of the vessel and a reaction region 4 is provided in the upper section of the vessel.
As can be seen from a comparison of fig. 1 and 2, 3 modules 5 of uniform construction are arranged inside the reactor vessel 1, wherein each module 5 has an air and water inlet line 6 in the form of a lance which opens into a two-substance nozzle 7.
The combined air and water inlet duct 6 leads through a tube 8, which is an insert tube, extending in the vertical direction in the reaction zone 4, which tube is provided for separating the opposing liquid flows on its outside on the one hand and on its inside on the other hand from each other.
Below the two-substance nozzle 7, each module 5 has a short mixing tube 9 in the substance conveying region 3. The liquid fed through the air and water lines 6 in addition to the compressed air can be newly added waste water to be cleaned, recirculated guided waste water or preferably a mixture of both. The air and the waste water are ejected under pressure at the two-substance nozzle 7, thus creating a turbulent flow, wherein a first circulating flow can be generated in the substance transport zone 3 around the mixing pipe 9 before the air-water mixture rises on the outside of its respective pipe 8 due to its lower density, wherein bacteria arranged in the reactor vessel 1 can decompose harmful substances, such as cyanides and phenols.
The air-water mixture rises to a liquid calming zone 10 at the surface of the liquid, wherein the air bubbles contained in the air-water mixture can be released in a certain amount, so that the density of the mixture increases again and a portion of the waste water, which still contains only a small amount of air, falls back again through the interior of the pipe 8 in the direction of the two-substance nozzle 7, whereby a circulating flow is also generated in the reaction zone 4.
As can be seen from fig. 1, the modules 5 are separated in the material transport region 3 and the reaction region 4 at the level of the tubes 8 by a partition wall 11, wherein the reactor vessel 1 forms a common flow section common to all modules 5 in a liquid calming zone 10 above the partition wall 11, to which a plurality of liquid discharge openings 13 are connected, from which the at least to some extent cleaned waste water is conveyed to the subsequent treatment steps.
Further liquid connections 12 are provided below the liquid outlet 13, according to fig. 1, around the circumference, at which the waste water is extracted from the reactor vessel and fed under pressure to the air and water inlet line 6. The pump provided for delivery is not shown for reasons of clarity.
Within the framework of the invention, it is advantageous that the optimum ratio of diameter and height can be set for each individual module 5, while the construction expenditure and in particular the overall height of the installation remain relatively small.
Furthermore, it can be seen from fig. 2 that an equalization chamber 15 is connected to the reactor vessel 1 via a liquid connection 14, wherein the liquid connection 14 is arranged above the liquid connection 12. The equilibrium chamber 15 further has a permeate inlet 16 and a permeate outlet 17. The equalization chamber 15 is provided for receiving excess permeate of a membrane separation device, not shown, and for returning it to the reactor vessel 1, if necessary. This simplifies the process operation, since for the operation of the membrane separation device, a flow rate below a certain value is generally not permitted in order to avoid membrane fouling. In the event of operating conditions in which too little waste water is fed into the reactor vessel 1, it is possible to guide the liquid in a circulating manner through the equalization chamber 15 between the reactor vessel 1 and the downstream membrane separation device in order to ensure the necessary minimum flow.
Within the framework of the invention, the reactor vessel 1 and the partition wall 11 can be produced from concrete, whereby particularly low production costs result. It is particularly contemplated that concrete is generally locally available and that the reactor vessel 1 or the dividing wall 11 may be constructed by a simple shroud.
The air and water intake duct 6 is placed into the module 5 from above, which enables particularly simple maintenance. By constructing a plurality of modules 5, which are divided in the lower region of the reactor vessel 1, it is possible to operate the plant with only a part of the modules 5, for example by shutting down the individual modules 5 when the throughput is low or maintenance is required.
The modules 5 defined by the outer walls of the reactor vessel 1 and the partition walls 11 have a regular polygonal shape in horizontal cross-section, i.e. a hexagonal shape, which results in a geometrically simple structure.
Fig. 3 shows an alternative design of a device for biologically cleaning liquids by adding gas, wherein the modules 5 are not arranged in a row as in the embodiment according to fig. 1 and 2, but in a ring-shaped bundle. Each individual module 5 has a hexagonal shape and forms a ring, wherein an overflow 18 is provided in the middle of the ring, which overflow is provided instead of the fluid connection 13 for circulating the waste water, in contrast to the design of fig. 1 and 2. A particularly compact and space-saving arrangement is achieved by the described arrangement of the modules 5, wherein the basic mode of operation of the individual modules 5 does not differ from the design according to fig. 1 and 2.
The apparatus according to fig. 3 and 4 is also provided with a balancing chamber 15 as described previously.
Claims (6)
1. Apparatus for biologically cleaning a liquid by adding a gas, comprising: a reactor vessel (1) for containing a liquid (2), said reactor vessel having a material transport region (3) in a lower vessel section and a reaction region (4) in an upper vessel section; a liquid input port; a liquid discharge port (12); a gas inlet opening into the material transport region (3); a tube (8) extending in the vertical direction in the reaction zone (4) and provided for separating opposing liquid flows from one another on the one hand on its outer side and on the other hand on its inner side, wherein the reaction zone (4) has a liquid calming zone (10) above the upper end of the tube (8), characterized in that a plurality of modules (5) each having a tube (8), a two-substance nozzle (7) and a gas inlet are arranged in the reactor vessel (1), wherein each module (5) has an air and water inlet line (6) in the form of a lance which merges into the two-substance nozzle (7), wherein the modules (5) are separated in the material transport zone (3) and the reaction zone (4) at the level of the tube (8) by a partition wall (11), wherein the reactor vessel (1) forms a homoflow section common to all modules (5) in the liquid calming zone (10) above the partition wall (11), a liquid outlet (12) is connected to the cocurrent section, wherein the separating wall prevents overflow of the liquid in the lower region of the reactor vessel, so that the juxtaposed modules form a reactor space bundle, wherein below the two-substance nozzle (7) each module (5) has a short mixing tube (9) in the substance transport region, and a balance chamber (15) is connected to the reactor vessel (1) through a liquid communication part (14), the liquid connection (14) being arranged above the liquid outlet (12), the balancing chamber (15) furthermore having a permeate inlet (16) and a permeate outlet (17), too little waste water being fed into the reactor vessel (1), the liquid is guided in a circulating manner through an equalization chamber (15) between the reactor vessel (1) and the downstream membrane separation device in order to ensure the necessary minimum flow.
2. The plant according to claim 1, characterized in that at least three modules (5) are arranged in the reactor vessel (1).
3. The apparatus according to claim 1 or 2, characterized in that the modules (5) are arranged annularly around a central spillway (18).
4. The apparatus according to claim 1, characterized in that the modules bounded by the partition wall (11) and the outer wall of the reactor vessel (1) each have the shape of a regular polygon in horizontal cross section.
5. The apparatus as claimed in claim 1, characterized in that the modules (5) each have a lance structure which is introduced from above and by means of which the liquid to be cleaned and the gas containing the bacteria can be conveyed separately from one another.
6. The plant according to claim 1, characterized in that the reactor vessel (1) is constructed at least partially of concrete.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102015114888.9A DE102015114888A1 (en) | 2015-09-04 | 2015-09-04 | Plant for biological fluid purification |
| DE102015114888.9 | 2015-09-04 | ||
| PCT/EP2016/070606 WO2017037168A1 (en) | 2015-09-04 | 2016-09-01 | Apparatus for biological liquid purification with a loop reactor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108025936A CN108025936A (en) | 2018-05-11 |
| CN108025936B true CN108025936B (en) | 2022-02-25 |
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ID=56855453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201680051285.9A Active CN108025936B (en) | 2015-09-04 | 2016-09-01 | Device for biologically cleaning liquids with a loop reactor |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN108025936B (en) |
| DE (1) | DE102015114888A1 (en) |
| WO (1) | WO2017037168A1 (en) |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4012300A1 (en) * | 1990-04-18 | 1991-10-24 | Palo Umwelttechnologien Gmbh & | METHOD FOR BIOLOGICALLY CLEANING WASTEWATER AND SYSTEM FOR CARRYING OUT THE METHOD |
| PL316520A1 (en) * | 1995-10-26 | 1997-04-28 | Tecon Gmbh | Method of biologically treating sewages |
| DE19631796A1 (en) * | 1996-08-07 | 1998-02-26 | Otto Oeko Tech | Biological purification for treating sewage |
| DE19842332B4 (en) | 1998-09-16 | 2011-08-11 | A.S.T. Abwassersysteme Systemtechnologie GmbH, 28359 | Device for the biological purification of wastewater |
| JP2004526572A (en) * | 2001-05-29 | 2004-09-02 | アクワイズ−ワイズ ウォーター テクノロジーズ リミティド | Method, apparatus and biomass support element for biological wastewater treatment |
| CN1171990C (en) * | 2002-08-23 | 2004-10-20 | 清华大学 | Gas-lifting recirculating reactor with more concentric guide barrels |
| CN201021442Y (en) * | 2007-03-29 | 2008-02-13 | 上海大学 | Biological reaction device for water ejection loop film |
| CN101591126A (en) * | 2009-03-27 | 2009-12-02 | 哈尔滨工业大学 | Novel jet loop membrane bioreaction system sewage treatment technology and device thereof |
| DE102011001962A1 (en) | 2011-04-11 | 2012-10-11 | Thyssenkrupp Uhde Gmbh | Process and plant for biological treatment of coking plant wastewater |
| JP2014533606A (en) * | 2011-12-02 | 2014-12-15 | インター アクア アドバンス アクティエセルスカブ | Container, bunch of containers, and method for processing liquid |
| CN204079584U (en) * | 2014-09-28 | 2015-01-07 | 武汉兴天宇环境工程有限公司 | A kind of oxygen enrichment sprays circulation reaction unit |
-
2015
- 2015-09-04 DE DE102015114888.9A patent/DE102015114888A1/en active Pending
-
2016
- 2016-09-01 WO PCT/EP2016/070606 patent/WO2017037168A1/en active Application Filing
- 2016-09-01 CN CN201680051285.9A patent/CN108025936B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| DE102015114888A1 (en) | 2017-03-09 |
| CN108025936A (en) | 2018-05-11 |
| WO2017037168A1 (en) | 2017-03-09 |
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