CN210367146U - Integrated short-cut nitrification-anaerobic ammonia oxidation sewage treatment domestication device - Google Patents
Integrated short-cut nitrification-anaerobic ammonia oxidation sewage treatment domestication device Download PDFInfo
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- CN210367146U CN210367146U CN201920519997.XU CN201920519997U CN210367146U CN 210367146 U CN210367146 U CN 210367146U CN 201920519997 U CN201920519997 U CN 201920519997U CN 210367146 U CN210367146 U CN 210367146U
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Abstract
The utility model discloses an integrated shortcut nitrification-anaerobic ammonia oxidation sewage treatment domestication device, which comprises a reactor and an aeration device; the aeration device is used for oxygenating the reactor in an aerobic stage of the reaction, the aeration device adopts an intermittent stepped aeration operation mode so as to enable the reactor to realize a reaction mode of multi-stage aerobic/anoxic alternate operation, and the duration of the next stage of aerobic stage is longer than that of the previous stage of aerobic stage. In this way, the utility model discloses sewage treatment domesticates device can realize and the integrated shortcut nitrification-anaerobic ammonia oxidation technology of steady operation, reaches autotrophy denitrogenation purpose, and the domestication process need not the external source and adds organic carbon, and the aeration volume is low, and the system total nitrogen gets rid of the gauge height.
Description
Technical Field
The utility model relates to the technical field of sewage treatment, concretely relates to integration shortcut nitrification-anaerobic ammonia oxidation sewage treatment domesticates device.
Background
The water body pollution problem is increasingly serious, a large amount of pollutants contained in the sewage can cause harm to the environment, meanwhile, pathogenic microorganisms can propagate to cause disease transmission, and the human health is influenced. Generally, pollutants such as organic carbon, nitrogen, phosphorus and the like contained in the sewage can be removed by an activated sludge or a biological membrane process. 2014 is 100 years since the birth of the activated sludge process, and related researchers begin to think again about the future development direction of sewage treatment. The organic carbon, nitrogen and phosphorus in the sewage can be recycled as resources instead of being treated as waste. For example, organic carbon in sewage can be converted into methane through the action of microorganisms, so that energy recovery is realized; the nitrogen-containing compounds in the wastewater can be removed by adopting a biological treatment process under low energy consumption.
The traditional biological denitrification is mainly realized by a nitrification and denitrification process, and the autotrophic denitrification process is realized by connecting a short-cut nitrification process with an anaerobic ammonia oxidation process. Generally, in the nitration reaction, oxygen is used as an electron donor, ammonia oxidizing bacteria oxidize ammonia nitrogen into nitrite, and nitrite oxidizing bacteria oxidize nitrite into nitrate. The short-cut nitrification (or nitrosation) process occurs only in the first step of the nitrification reaction by ammonia-oxidizing bacteria, while the second step by nitrite-oxidizing bacteria is inhibited. The denitrification reaction is that the denitrifying bacteria take organic carbon as an electron donor, reduce nitrate generated in the nitration process into nitrogen and discharge the nitrogen out of a water body, so as to achieve the aim of sewage denitrification.
The anaerobic ammonia oxidation process can convert ammonia nitrogen and nitrite in the sewage into nitrogen under anaerobic conditions. Compared with the traditional nitrification and denitrification process, the anaerobic ammonia oxidation process has the advantages of no additional carbon source, aeration energy consumption saving, low sludge yield and the like, and is the most economical and efficient sewage denitrification process at present. The integrated shortcut nitrification-anaerobic ammonia oxidation process combines a shortcut nitrification process and an anaerobic ammonia oxidation process. The anammox bacteria can utilize nitrite generated by the shortcut nitrification reaction and ammonia nitrogen which is not completely oxidized to perform the anammox reaction, thereby realizing autotrophic nitrogen removal.
The integrated shortcut nitrification-anaerobic ammonia oxidation process has many advantages, but the practical application of the integrated shortcut nitrification-anaerobic ammonia oxidation process still has the following two difficulties. First, anammox bacteria are density-dependent bacteria, and the activity is exhibited only when the density of the bacterial population is high. The proliferation rate of the anaerobic ammonium oxidation bacteria is slow, and the epoch period can reach 11 days. The problems that the bacteria are difficult to enrich and the activity is low can occur in the process operation. Secondly, nitrite substrate competition phenomenon exists in the integrated system, and mainly occurs between nitrite oxidizing bacteria and anaerobic ammonium oxidation bacteria. Therefore, the sludge loss and the activity enhancement of nitrite oxidizing bacteria can both cause that the integrated shortcut nitrification-anaerobic ammonia oxidation process is difficult to realize.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides an integrated shortcut nitrification-anaerobic ammonia oxidation sewage treatment domestication device.
The utility model adopts the technical proposal that: an integrated shortcut nitrification-anaerobic ammonia oxidation sewage treatment domestication device comprises a reactor and an aeration device; the aeration device is used for oxygenating the reactor in an aerobic stage of the reaction, and adopts an intermittent stepped aeration operation mode so as to realize a reaction mode of multi-stage aerobic/anoxic alternate operation of the reactor, and the time length of the next stage aerobic stage is longer than that of the previous stage aerobic stage.
The operation cycle of the reactor generally comprises a water inlet stage, a reaction stage, a standing stage and a water drainage stage; the reaction stage is alternately carried out according to multi-stage aerobic/anoxic, and the multi-stage aerobic/anoxic alternation means that the aerobic stage and/or the anoxic stage occur more than twice and alternately occur in time. The switching between the aerobic reaction stage and the anoxic reaction stage is realized by an aeration device, the aeration device aerates and oxygenizes the oxygen in the reactor in the aerobic stage, and the aeration device stops aerating in the reactor in the anoxic stage. The aeration device adopts an intermittent stepped aeration operation mode, namely under the alternate aeration-non-aeration operation mode, the aeration load is increased in steps in different domestication stages, so that the reactor realizes a multi-stage aerobic/anoxic alternate operation reaction mode, and the duration of the next stage aerobic stage is longer than that of the previous stage aerobic stage. Each stage of reaction is generally operated alternately by aerobic and anoxic times. The aeration load can be increased by increasing the aeration amount per unit time under the same aeration duration, by increasing the aeration time under the premise that the aeration amount per unit time is the same, or by increasing the aeration amount per unit time and the aeration duration simultaneously; it is preferable to extend the aeration time on the premise that the aeration amount per unit time is the same.
Preferably, anaerobic ammonia oxidation biomembrane filler is filled in the reactor. By filling and inoculating the anaerobic ammonium oxidation biomembrane filler in the reactor, the enrichment time of anaerobic ammonium oxidation bacteria in the reactor can be shortened, the activity of the anaerobic ammonium oxidation bacteria at the initial acclimation stage is improved, and the integrated shortcut nitrification-anaerobic ammonium oxidation process can be quickly started. The anaerobic ammonium oxidation biomembrane filler can be specifically selected from anaerobic ammonium oxidation biomembrane fillers cultured in a continuous flow mode in a sequencing batch biomembrane reactor in a laboratory.
Preferably, the integrated shortcut nitrification-anaerobic ammonia oxidation sewage treatment domestication device further comprises a timer, wherein the timer is used for controlling the opening and closing of the aeration device in a timing mode so that the aeration device realizes an intermittent stepped aeration operation mode.
Preferably, the reactor further comprises a stirrer, wherein the stirrer is used for stirring the materials in the reactor in an aerobic stage and/or an anoxic stage of the reaction. Through the setting of agitator, can improve the interior nutrient mass transfer efficiency of reactor. Further preferably, a timer may be further provided for controlling the timing of the turning on and off of the agitator.
Preferably, a temperature control device is arranged in the reactor. The reaction temperature in the reactor can be flexibly controlled by the temperature control device, and the temperature in the reactor is usually controlled to be 25-30 ℃, preferably 26 ℃.
Preferably, the reactor is provided with a water inlet and a water outlet, the water inlet pump is communicated with the water inlet of the reactor, and the water outlet pump is communicated with the water outlet of the reactor. Further preferably, a timer is also included; the timer is used for controlling the opening and closing of the water inlet pump, the water discharge pump and the aeration device in a timing mode.
Preferably, the reactor is cylindrical. Specifically, a cylindrical reactor having a height of 50cm, an inner diameter of 15cm and an effective volume of 6L can be used.
Preferably, the operation cycle of the reactor comprises a water inlet stage, a reaction stage, a standing stage and a water drainage stage; the reactor has water inlet of 1.5L, water outlet of 1.5L and hydraulic retention time of 24h in each operation period.
Further preferably, the operation cycle of the reactor is 6 hours, and the reactor comprises a 10min water inlet stage, a 320min reaction stage, a 20min standing stage and a 10min water drainage stage; the reactor realizes a three-stage aerobic/anoxic alternate operation reaction mode through the aeration device, wherein the first-stage reaction stage is alternately carried out according to 1min aerobic/9 min anoxic, and the total operation time is 15 d; the second-stage reaction stage is alternately carried out according to 3min aerobic/9 min anoxic, and the total operation time is 32 d; the third stage reaction stage is alternately carried out according to the aerobic condition of 7 min/the anoxic condition of 5min, and the total operation time is 43 d.
The utility model has the beneficial technical effects that: the utility model provides an integration shortcut nitrification-anaerobic ammonia oxidation sewage treatment domestication device, aeration equipment adopts the operational mode of intermittent type formula step aeration among this integration shortcut nitrification-anaerobic ammonia oxidation sewage treatment domestication device, promptly under aeration-non-aeration alternative operational mode, improves aeration load at different domestication stage steps. The aeration load in the reactor at the initial stage of acclimatization is low, so that the reaction system can maintain a low dissolved oxygen environment, the activity of the anammox bacteria is ensured to enrich the ammonia oxidizing bacteria, and simultaneously, the activity of nitrite oxidizing bacteria is inhibited, so that the anammox bacteria and the ammonia oxidizing bacteria coexist in the same system; after ammonia oxidizing bacteria are gradually enriched, the oxygen demand in the short-cut nitrification process is increased, and based on the microbial activity and the oxygen demand, the aeration load of the aeration device is gradually increased according to steps, so that the aerobic section time of the reactor can be prolonged, the short-cut nitrification performance is improved, and simultaneously more substrates are provided for the anaerobic ammonia oxidizing bacteria, and the efficient autotrophic nitrogen removal is realized. In conclusion, the utility model discloses sewage treatment domesticates device adopts the operational mode of intermittent type formula step aeration through aeration equipment, improves the aeration load with the step under aeration-non-aeration alternative operational mode, can realize and the steady operation integration shortcut nitrification-anaerobic ammonia oxidation technology, reaches autotrophic denitrogenation purpose, and the domestication process need not the external source and adds organic carbon, and the aeration rate is low, and the total nitrogen removal volume of system is high.
Drawings
In order to more clearly illustrate the technical solution in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below.
FIG. 1 is a schematic structural diagram of an embodiment of the integrated shortcut nitrification-anammox sewage treatment domestication device;
FIG. 2 is a graph showing the variation of the concentration of nitrogen-containing compounds in the integrated shortcut nitrification-anaerobic ammonia oxidation system in application example 1.
Detailed Description
The present invention will be further described with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes and modifications of the present invention may be made by those skilled in the art after reading the teachings of the present invention, and these equivalents also fall within the scope of the appended claims.
Referring to fig. 1, fig. 1 is a schematic structural diagram of an embodiment of the integrated shortcut nitrification-anammox sewage treatment domestication device of the present invention. As shown in FIG. 1, the integrated shortcut nitrification-anaerobic ammonia oxidation sewage treatment domestication device of the embodiment comprises a reactor 1 and an aeration device 2.
The reactor 1 is used as a acclimatization device for sewage treatment, and is filled with an anaerobic ammonia oxidation biofilm filler 5. The reactor 1 is specifically a cylindrical organic glass reactor, the height of which is 50cm, the inner diameter of which is 15cm, and the effective volume of which is 6L. The reactor 1 is provided with a water inlet and a water outlet, and the water outlet is higher than the water inlet. The sewage treatment device also comprises a water inlet pump 6 and a water outlet pump 7, wherein the water inlet pump 6 is communicated with the water inlet of the reactor 1, and the water outlet pump 7 is communicated with the water outlet of the reactor 1 so as to respectively control water inlet and water outlet; in this embodiment, the water inlet pump 6 and the water outlet pump 7 both use peristaltic pumps. The operating cycle of the reactor generally comprises a water inlet phase, a reaction phase, a standing phase and a water discharge phase. In this embodiment, the operation cycle of the reactor 1 is 6 hours, and includes a water inlet stage of 10min, a reaction stage of 320min, a standing stage of 20min, and a water discharge stage of 10 min. The water inlet of each operation period of the reactor 1 is 1.5L, the water outlet is 1.5L, and the hydraulic retention time is 24 h.
In order to facilitate the control of water inlet and outlet, the sewage treatment device of the embodiment further comprises a timer for controlling the opening and closing of the water inlet pump 6 and the water outlet pump 7 in a timing manner. Specifically, the timer can control the opening and closing of the water inlet pump 6 and the water discharge pump 7 at regular time according to the operation period of the reactor 1, and further control the water inlet and outlet of the reactor 1. In actual production and sewage treatment, the shape, size, operation period, etc. of the reactor 1 can also be adjusted according to actual conditions.
The aeration device 2 is used for oxygenating the reactor 1 in the aerobic stage of the reaction, and a microporous aerator can be specifically adopted. The aeration device 2 adopts an intermittent step aeration operation mode, namely aeration-non-aeration alternate operation, and improves aeration load step by step in different domestication stages. The aeration load can be increased by increasing the aeration amount per unit time under the same aeration duration, by increasing the aeration time under the premise that the aeration amount per unit time is the same, or by increasing the aeration amount per unit time and the aeration duration simultaneously; in this example, the aeration time is extended on the premise that the aeration amount per unit time is the same. The aeration device 2 aerates the reactor 1 according to an intermittent stepped aeration operation mode, a reaction mode of multi-stage aerobic/anoxic alternate operation can be realized in the reactor 1, and the duration of the next stage aerobic stage is longer than that of the previous stage aerobic stage. The aeration device 2 adopts an intermittent stepped aeration operation mode, the aeration load in the reactor 1 at the initial acclimation stage is low, the reaction system can maintain a low dissolved oxygen environment, the activity of anammox bacteria is ensured to enrich ammonia oxidizing bacteria, meanwhile, the activity of nitrite oxidizing bacteria is inhibited, and the anammox bacteria and the ammonia oxidizing bacteria coexist in the same system; after ammonia oxidizing bacteria are gradually enriched, the oxygen demand in the short-cut nitrification process is increased, and based on the microbial activity and the oxygen demand, the aeration load of the aeration device 2 is gradually increased according to steps, so that the aerobic section time of the reactor 1 can be prolonged, the short-cut nitrification performance is improved, and simultaneously more substrates are provided for the anaerobic ammonia oxidizing bacteria, and the efficient autotrophic nitrogen removal is realized. In order to facilitate the control operation, a control device may be further provided for controlling the aeration device 2 to perform intermittent step aeration. Specifically, the control means may employ a timer for timing the opening and closing of the controlled release aeration apparatus 2. Alternatively, it is also possible to design the aeration device 2 itself with an automatic control system for controlling the aeration device 2 to perform intermittent step aeration.
In the actual production operation process, the specific intermittent stepped aeration operation mode (including the aeration and non-aeration time length in each stage, the time and times for increasing the aeration load and the like) of the aeration device 2 can be set according to the actual condition (including ammonia nitrogen concentration and the like) of the sewage to be treated so as to control the reaction mode of the reactor 1. The reactor 1 can realize a multi-stage aerobic/anoxic alternate operation reaction mode through the aeration device 2, wherein the multi-stage is generally more than two stages, such as two stages, three stages, five stages and the like, and the specific stages can be controlled by the times of increasing the aeration load through the aeration device 2. In the embodiment, the reactor 1 realizes a three-stage aerobic/anoxic alternate operation reaction mode through the aeration device 2, wherein the first-stage reaction stage is alternately performed according to 1min aerobic/9 min anoxic, and the total operation time is 15 d; the second-stage reaction stage is alternately carried out according to 3min aerobic/9 min anoxic, and the total operation time is 32 d; the third stage reaction stage is alternately carried out according to the aerobic condition of 7 min/the anoxic condition of 5min, and the total operation time is 43 d.
This embodiment sewage treatment plant still includes agitator 3, and agitator 3 specifically includes stirring rake, connecting rod and drive arrangement, and inside the reactor was located to the stirring rake, drive arrangement passed through the connecting rod and was connected with the stirring rake for the material in the motion of drive stirring rake in order to stir reactor 1. By the arrangement of the stirrer 3, the nutrient mass transfer efficiency in the sewage can be promoted by mechanical stirring during the operation of the reactor 1. In some embodiments, a timer may also be provided for timed control of the stirrer on and off, or for timed control of the water inlet pump 6, the water discharge pump 7 and the stirrer 3 on and off.
In addition, the sewage treatment device of the embodiment further comprises a temperature control device 4, which is specifically a heating rod, and the temperature in the reactor can be flexibly controlled through the temperature control device 4, so that the activity of the genus of bacteria can be maintained, and the reaction can be smoothly and efficiently carried out. The temperature in the reactor 1 is generally controlled to be 25 to 30 ℃, preferably 26 ℃.
In other embodiments, the general control system can also be arranged to control the operation of the whole sewage treatment acclimatization device, including water inlet, water outlet and aeration of the aeration device, and the arrangement of the general control system can lead the integrated shortcut nitrification-anaerobic ammonia oxidation sewage treatment acclimatization device to operate flexibly and save manpower.
The sewage treatment domestication device adopts an intermittent step aeration operation mode by filling the anaerobic ammonia oxidation biomembrane filler 5 in the reactor 1 and the aeration device 2, improves aeration load in steps under an aeration-non-aeration alternative operation mode, can realize and stably operate an integrated shortcut nitrification-anaerobic ammonia oxidation process, achieves the aim of autotrophic nitrogen removal, does not need to add organic carbon from an external source in the domestication process, and has low aeration amount and high total nitrogen removal amount of a system.
When the sewage treatment domestication device is applied to sewage treatment, a continuous flow or sequencing batch operation mode can be specifically adopted. When a continuous flow operation mode is adopted, sewage to be treated is pumped into a reactor 1 filled with anaerobic ammonia oxidation biomembrane fillers 5 through a water inlet pump 6, an aeration device 2 carries out aeration operation on the reactor 1 through an aeration-non-aeration intermittent gradient aeration operation mode, and in order to promote the nutrient mass transfer efficiency in the operation process of the reactor 1, a stirrer 3 can be started to mechanically stir materials in the reactor 1; the effluent exits the reactor 1 in a gravity flow mode. When the sequencing batch mode of operation is used, the operating cycle of reactor 1 comprises: firstly, pumping self-prepared sewage (or actual sewage) containing ammonia nitrogen and nutrient elements required by microorganism growth by a water inlet pump 6, carrying out aeration operation on a reactor 1 by an aeration device 2 in an aeration-non-aeration intermittent gradient aeration operation mode, and starting a stirrer 3 to mechanically stir materials in the reactor in order to promote the nutrient mass transfer efficiency in the operation process; stopping stirring when the reaction stage time is over; the treated sewage is discharged by a drainage pump 7 after standing; then, a new sewage is pumped in by adopting the water inlet pump 6, and a new sewage denitrification process is started.
Application example 1
The integrated short-cut nitrification-anaerobic ammonia oxidation sewage treatment domestication device shown in figure 1 is adopted for sewage treatment, specifically, the ammonia nitrogen concentration in the sewage to be treated is about 100mg/L, and in addition, the integrated short-cut nitrification-anaerobic ammonia oxidation sewage treatment domestication device also comprises KHCO31g/L、NaHCO31g/L、MgSO444.8mg/L、CaCl2134mg/L and trace elements. Specifically, a sequencing batch operation mode is adopted, sewage to be treated is pumped into a reactor 1 filled with anaerobic ammonia oxidation biomembrane fillers 5 through a water inlet pump 6, a stirrer 3 is started to stir materials in the reactor 1, the temperature in the reactor 1 is maintained at room temperature (generally about 26 ℃) through a temperature control device 4, and the opening and closing of an aeration device 2 are controlled at regular time through a timer, so that the aeration device 2 carries out aeration-non-aeration intermittent gradient aeration, and further the sewage treatment in the reactor 1 realizes a reaction mode of multi-stage aerobic/anoxic alternate operation. Wherein, the operation period of the reactor 1 in each stage is 6h and comprises a water inlet stage of 10min, a reaction stage of 320min, a standing stage of 20min and a water drainage stage of 10min according to the difference of the time (or the difference of aeration load) of the aerobic stage and the anoxic stage. Specifically, the total operation time of the stage I (i.e. the stage I) is 15d, and the reaction stages are alternately carried out according to 1min aerobic/9 min anoxic (or 1min aeration/9 min non-aeration); stage II (i.e. stage II), the total operation time is 32d, and the reaction stages are alternately carried out according to 3min aerobic/9 min anoxic (or 3min aeration/9 min non-aeration); stage III (i.e. stage III)) The total operation time is 43d, and the reaction stages are alternately carried out according to 7min aerobic/5 min anoxic (or 7min aeration/5 min non-aeration). Specifically, a timer can be set through the operation period of each stage, so that the opening and closing of the water inlet pump 6, the aeration device 2 and the drainage pump 7 are controlled when the timer is timed 6, and the reactor 1 is subjected to multistage aerobic/anoxic alternate operation according to the operation period.
In addition, the concentration of the inlet ammonia nitrogen, the outlet nitrite and the outlet nitrate of each batch of sewage are respectively detected in the domestication treatment process, and the total nitrogen removal rate is calculated; wherein, the total nitrogen removal rate is (total nitrogen concentration of inlet water-total nitrogen concentration of outlet water)/total nitrogen concentration of inlet water x 100%, and the total nitrogen concentration is ammonia nitrogen concentration + nitrite concentration + nitrate concentration. The results of the detection are shown in FIG. 2, in which NH is present4-Ninf、NH4-Neff、NO2-Neff、NO3-NeffAnd TN respectively represents the ammonia nitrogen of inlet water, the ammonia nitrogen of outlet water, nitrite of outlet water, nitrate of outlet water and total nitrogen concentration of outlet water.
As can be seen from FIG. 2, the above stage I adopts the low dissolved oxygen condition with a short aerobic period, the total nitrogen removal rate gradually rises to 38.3%, the concentrations of nitrite and nitrate in the effluent are respectively 0.95mg/L and 0.01mg/L, which shows that under the low dissolved oxygen condition with a short aerobic period, the activity of ammonia oxidizing bacteria in the integrated shortcut nitrification-anaerobic ammonia oxidation system in the reactor 1 is gradually enhanced, and the activity of nitrite oxidizing bacteria is successfully inhibited; in addition, the inoculation of the anaerobic ammonium oxidation biomembrane filler 5 ensures that the anaerobic ammonium oxidation bacteria at the initial acclimation stage show higher activity and good denitrification effect. Stage II, the aerobic aeration time is increased to 3min, the dissolved oxygen content is increased, the total nitrogen removal rate is gradually increased from 38.3 percent to 56.9 percent, and the concentrations of nitrite and nitrate are only 0.97mg/L and 0.32 mg/L at most; it is known that the activities of the ammonia oxidizing bacteria and the anaerobic ammonia oxidizing bacteria are gradually enhanced in the stage, the denitrogenation functional bacteria are continuously enriched, and the denitrogenation performance is improved. After the system tends to be stable in the stage II, the duration of the aerobic period is increased to 7min in the stage III, the total nitrogen removal rate in the integrated system is increased to 87%, and efficient autotrophic nitrogen removal is realized. The results show that the aeration device 2 can realize the inhibition of nitrite oxidizing bacteria in the acclimatization process by adopting an intermittent stepped aeration operation mode, and is beneficial to the growth of ammonia oxidizing bacteria and anaerobic ammonia oxidizing bacteria in the integrated shortcut nitrification-anaerobic ammonia oxidation system.
While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (9)
1. The integrated short-cut nitrification-anaerobic ammonia oxidation sewage treatment domestication device is characterized by comprising a reactor and an aeration device; the aeration device is used for oxygenating the reactor in an aerobic stage of the reaction, and adopts an intermittent stepped aeration operation mode so as to realize a reaction mode of multi-stage aerobic/anoxic alternate operation of the reactor, and the time length of the next stage aerobic stage is longer than that of the previous stage aerobic stage.
2. The integrated shortcut nitrification-anaerobic ammonia oxidation sewage treatment domestication device of claim 1, wherein anaerobic ammonia oxidation biomembrane filler is filled in the reactor.
3. The integrated shortcut nitrification-anaerobic ammonia oxidation sewage treatment domestication device of claim 1, characterized in that, a timer is further included; the timer is used for controlling the opening and closing of the aeration device in a timing mode so as to enable the aeration device to realize an intermittent step aeration operation mode.
4. The integrated shortcut nitrification-anaerobic ammonia oxidation sewage treatment domestication device of claim 1, further comprising a stirrer for stirring materials in the reactor during an aerobic stage and/or an anoxic stage of a reaction.
5. The integrated shortcut nitrification-anaerobic ammonia oxidation sewage treatment domestication device of claim 1, wherein a temperature control device is arranged in the reactor.
6. The integrated shortcut nitrification-anaerobic ammonia oxidation sewage treatment domestication device of claim 1, further comprising a water inlet pump and a water outlet pump, wherein the reactor is provided with a water inlet and a water outlet, the water inlet pump is communicated with the water inlet of the reactor, and the water outlet pump is communicated with the water outlet of the reactor.
7. The integrated shortcut nitrification-anaerobic ammonia oxidation sewage treatment domestication device of claim 6, characterized in that, a timer is further included; the timer is used for controlling the opening and closing of the water inlet pump, the water discharge pump and the aeration device in a timing mode.
8. The integrated shortcut nitrification-anaerobic ammonia oxidation sewage treatment domestication device of any one of claims 1-7, wherein the reactor is cylindrical.
9. The integrated shortcut nitrification-anaerobic ammonia oxidation sewage treatment domestication device of claim 8, wherein the height of the reactor is 50cm, the inner diameter is 15cm, and the effective volume is 6L.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109987703A (en) * | 2019-04-16 | 2019-07-09 | 清华大学深圳研究生院 | Integrated short distance nitration-anaerobic ammoxidation sewage treatment acclimation method and device |
| CN111547851A (en) * | 2020-05-22 | 2020-08-18 | 广西春晖环保工程有限责任公司 | Starting method of integrated shortcut nitrification-anaerobic ammonia oxidation denitrification process |
| CN113735263A (en) * | 2021-08-27 | 2021-12-03 | 清华大学 | Wastewater denitrification process and device based on synchronous nitrification and denitrification bacteria |
| CN115504574A (en) * | 2022-10-13 | 2022-12-23 | 宁夏大学 | Method for realizing stable nitrosation-anaerobic ammonia oxidation denitrification under medium DO concentration condition |
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2019
- 2019-04-16 CN CN201920519997.XU patent/CN210367146U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109987703A (en) * | 2019-04-16 | 2019-07-09 | 清华大学深圳研究生院 | Integrated short distance nitration-anaerobic ammoxidation sewage treatment acclimation method and device |
| CN111547851A (en) * | 2020-05-22 | 2020-08-18 | 广西春晖环保工程有限责任公司 | Starting method of integrated shortcut nitrification-anaerobic ammonia oxidation denitrification process |
| CN111547851B (en) * | 2020-05-22 | 2021-04-20 | 广西春晖环保工程有限责任公司 | Starting method of integrated shortcut nitrification-anaerobic ammonia oxidation denitrification process |
| CN113735263A (en) * | 2021-08-27 | 2021-12-03 | 清华大学 | Wastewater denitrification process and device based on synchronous nitrification and denitrification bacteria |
| CN113735263B (en) * | 2021-08-27 | 2023-03-14 | 清华大学 | Wastewater denitrification process and device based on synchronous nitrification and denitrification bacteria |
| CN115504574A (en) * | 2022-10-13 | 2022-12-23 | 宁夏大学 | Method for realizing stable nitrosation-anaerobic ammonia oxidation denitrification under medium DO concentration condition |
| CN115504574B (en) * | 2022-10-13 | 2023-08-22 | 宁夏大学 | Method for realizing stable nitrosation-anaerobic ammonia oxidation denitrification under medium DO concentration condition |
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