CN214457466U - Device for treating high ammonia nitrogen wastewater by anaerobic ammonia oxidation and A/O combined biological method - Google Patents
Device for treating high ammonia nitrogen wastewater by anaerobic ammonia oxidation and A/O combined biological method Download PDFInfo
- Publication number
- CN214457466U CN214457466U CN202022824149.5U CN202022824149U CN214457466U CN 214457466 U CN214457466 U CN 214457466U CN 202022824149 U CN202022824149 U CN 202022824149U CN 214457466 U CN214457466 U CN 214457466U
- Authority
- CN
- China
- Prior art keywords
- tank
- ammonia oxidation
- anaerobic ammonia
- wastewater
- anaerobic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The utility model relates to the technical field of power plant wastewater treatment, in particular to a device for treating high ammonia nitrogen wastewater by an anaerobic ammonia oxidation and A/O combined biological method, which comprises an aeration regulating reservoir, a water distribution tank, an anaerobic ammonia oxidation reactor, an A/O reactor module and a clean water tank, wherein the water distribution tank is respectively connected with the aeration regulating reservoir and the anaerobic ammonia oxidation reactor, and the aeration regulating reservoir and the water distribution tank are both connected with a sodium hydroxide dosing device; the anaerobic ammonia oxidation reactor is internally provided with a first microporous aerator and is connected with a nutrient salt dosing device, the A/O reactor module comprises an anoxic tank, an aerobic tank and an inclined plate clarifier, the anoxic tank is connected with a glucose dosing device, and the aerobic tank is connected with a Roots blower; the clean water tank is connected with the inclined plate clarifier. The utility model provides a problem that power plant high ammonia nitrogen waste water is difficult to handle, the water after handling can the retrieval and utilization as desulfurization process water, has solved the foam problem that rich nutrition caused, has also alleviateed the pressure of the external drainage of power plant.
Description
Technical Field
The utility model relates to a power plant waste water treatment technical field, in particular to anaerobic ammonium oxidation and AO combine biological method to handle high ammonia-nitrogen wastewater device.
Background
The salt content of the wastewater generated by finely treating the regenerated wastewater by the condensed water in the power plant is about 12000mg/L, and the ammonia nitrogen content is about 500-800 mg/L, and the wastewater belongs to the category of medium-high concentration. At present, the treatment of the regenerated wastewater of the condensate fine treatment of the power plant is a difficult problem, most of the regenerated wastewater is recycled or discharged after being treated by simple neutralization, aeration or addition of a high-concentration oxidant, but the air can be polluted, the water quality after the treatment basically cannot meet the requirement of the first-level A discharge standard in GB 18918-2002 pollutant discharge Standard of urban Sewage treatment plant, and even if the wastewater is recycled to the industrial water of the desulfurization process, a large amount of foam can be generated in the effluent, thereby causing certain influence on the operation of a desulfurization system.
SUMMERY OF THE UTILITY MODEL
The utility model provides a difficult problem of power plant regeneration waste water treatment among the correlation technique, a high ammonia nitrogen wastewater device is handled to anaerobic ammonium oxidation and AO combined biological method is proposed, the problem of the high ammonia nitrogen wastewater of smart processing regeneration of power plant extremely difficult to handle is solved, water after handling through this device can the retrieval and utilization as desulfurization process water, the foam scheduling problem that eutrophication caused has been solved, the pressure of the external drainage of power plant has also been alleviateed simultaneously, the environmental protection problem that this type of waste water ammonia nitrogen exceeds standard has thoroughly been solved.
In order to solve the technical problem, the utility model discloses a realize through following technical scheme: a device for treating high ammonia nitrogen wastewater by anaerobic ammonia oxidation and A/O combined biological method comprises:
the aeration adjusting tank is connected with a sodium hydroxide dosing device;
the water distribution tank is connected with the aeration regulating tank through a pump and is connected with a sodium hydroxide dosing device;
an anaerobic ammonia oxidation reactor, wherein the anaerobic ammonia oxidation reactor is connected with a water distribution tank, a first microporous aerator is arranged in the anaerobic ammonia oxidation reactor and is connected with a nutritive salt dosing device,
the A/O reactor module comprises an anoxic tank, an aerobic tank and an inclined plate clarifier, wherein the anoxic tank is connected with a glucose dosing device, and the aerobic tank is connected with a Roots blower;
and the clean water tank is connected with the inclined plate clarifier.
As a preferred scheme, the aeration adjusting tank is connected with the Roots blower, perforated aeration pipes are arranged at the bottom of the aeration adjusting tank in a loop mode, and the perforated aeration pipes are made of UPVC.
As a preferred scheme, a pH meter is installed in the water distribution tank, and the water distribution tank is connected with a steam pipeline through a steam ejector and is provided with an online thermometer.
As a preferred scheme, an online pH meter, an online dissolved oxygen meter, an online ammonia nitrogen tester and an online nitrite nitrogen tester are arranged in the anaerobic ammonia oxidation reactor, and a sludge circulating pump is further arranged on the anaerobic ammonia oxidation reactor.
Preferably, the anoxic pond is provided with a stirring device.
As a preferred scheme, a second microporous aerator is arranged at the bottom of the aerobic tank, a nitrifying liquid reflux pump is arranged on a pipeline between the anoxic tank and the aerobic tank, and a sludge reflux pump is arranged on a pipeline between the inclined plate clarifier and the anoxic tank.
Preferably, the clean water tank conveys the treated wastewater to the wastewater storage tank through a clean water pump.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses an aeration equalizing basin will come from the high ammonia nitrogen waste water of power plant and keep in the aeration, then, pass through anaerobic ammonium oxidation reactor again, will be with the ammonia nitrogen in the former waste water from more than 500mg/L reduce to below 100mg/L, then pass through AO reactor module, reduce the ammonia nitrogen of remaining 100mg/L in the waste water to below 5mg/L, control total nitrogen below 15mg/L simultaneously, the utility model provides a problem of the high ammonia nitrogen waste water of fine processing regeneration that power plant is extremely difficult to handle, water after handling through this device can be recycled as desulfurization process water, has solved the foam scheduling problem that the eutrophication caused, has also alleviateed the external drainage's of power plant pressure simultaneously, has thoroughly solved the environmental protection problem that this type of waste water ammonia nitrogen exceeds standard; in addition, the equipment can adopt a container type integrated design, so that the construction is simple, the installation is convenient, the whole system is simple, the running power consumption is low, the fault points are few, the maintenance is convenient, and the investment cost and the running cost are low.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a process flow diagram of the present invention.
In the figure:
1. aeration regulating reservoir, 2, water distribution tank, 3, anaerobic ammonia oxidation reactor, 301, first micropore aerator, 4, oxygen deficiency pond, 5, good oxygen pond, 501, second micropore aerator, 6, inclined plate clarifier, 7, clean water pond, 8, sodium hydroxide charge device, 9, nutritive salt charge device, 10, glucose charge device, 11, roots's fan, 12, steam ejector, 13, sludge circulating pump, 14, agitating unit, 15, nitrifying liquid reflux pump, 16, sludge reflux pump, 17, clean water pump.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
Unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be interpreted as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and if not stated otherwise, the terms have no special meaning, and therefore, the scope of the present invention should not be construed as being limited.
As shown in fig. 1 to 2, the device for treating high ammonia nitrogen wastewater by anaerobic ammonia oxidation and A/O combined biological method comprises an aeration adjusting tank 1, a water distribution tank 2, an anaerobic ammonia oxidation reactor 3, an A/O reactor module and a clean water tank 7, wherein the aeration adjusting tank 1 is connected with a sodium hydroxide dosing device 8 for adjusting the pH value in the aeration adjusting tank 1, and the aeration adjusting tank 1 is used for temporarily storing and aerating the high ammonia nitrogen wastewater from a power plant; the water distribution tank 2 is connected with the aeration adjusting tank 1 through a pump, and the water distribution tank 2 is connected with a sodium hydroxide dosing device 8 for adjusting the pH value in the water distribution tank 2; the anaerobic ammonia oxidation reactor 3 is connected with the water distribution tank 2, a first microporous aerator 301 is arranged in the anaerobic ammonia oxidation reactor 3 and is connected with a nutrient salt dosing device 9, wherein the connection point of an aeration pipe of the first microporous aerator 301 and an air inlet pipe is above the water surface of the anaerobic ammonia oxidation reactor 3, the air inlet pipe can automatically adjust the air volume, and the maintenance is convenient; the A/O reactor module body is made of carbon steel lining FRP, biochemical hydraulic retention time in the A/O reactor is not less than 15 hours, and efficient microorganism fixing filler is additionally arranged in the A/O reactor to maintain the concentration of microorganisms with higher concentration; the A/O reactor module comprises an anoxic tank 4, an aerobic tank 5 and an inclined plate clarifier 6, wherein the anoxic tank 4 is connected with a glucose dosing device 10, the aerobic tank 5 is connected with a Roots blower 11, and the Roots blower 11 is used for supplementing sufficient oxygen to the aerobic tank 5; the surface load range of the inclined plate clarifier 6 is 0.5-1.5 m3/m2H, the retention time of the wastewater in the inclined plate clarifier 6 is not less than 3 h; the clean water tank 7 is connected with the inclined plate clarifier 6.
WhereinEach charge device all includes two batch meters and two dosing pumps, and the dosing pump adopts the measuring pump, and the volume of individual batch meter should not be less than the dosage round clock, for example: the volume of a single trace nutrient salt metering box is not less than 0.5m3The volume of a single carbon source metering box is not less than 0.5m3The volume of a single alkali metering box is not less than 1.5m3(ii) a In addition, the material of batch meter should be acid and alkali-resistance, the corruption of carbon source medicament and micronutrient salt, except the batch meter of micronutrient salt, all batch meters join in marriage one set of magnetic flap level gauge of taking far away transmission function, and the measuring pump adopts mechanical diaphragm formula, and various pumps and fan are all controlled through the switch board on ground.
In one embodiment, the aeration adjusting tank 1 is connected with a roots blower 11 and used for supplying sufficient oxygen to the aeration adjusting tank 1, perforated aeration pipes are arranged at the bottom of the aeration adjusting tank 1 and are arranged in a loop, and the perforated aeration pipes are made of UPVC.
In one embodiment, if the amount of wastewater to be treated is small, the aeration adjusting tank 1 can be a steel-structured water tank, and if the amount of wastewater to be treated is large, the aeration adjusting tank 1 is of a reinforced concrete structure, the aeration adjusting tank 1 is divided into at least two adjusting tank units by a partition plate, and the effective volume of each adjusting tank unit is not less than 500m3In addition, each grid of regulating reservoir should be respectively provided with a DN125 industrial water pipe interface and an automatic valve, the automatic valve is linked with the online conductivity meter at the upper part of each grid of regulating reservoir, and the purpose of adopting industrial water is to regulate the salt content of the incoming water so as to meet the water inlet requirement of the whole set of equipment.
In one embodiment, a pH meter is installed in the water distribution tank 2, the water distribution tank 2 is connected with a steam pipeline through a steam ejector 12, and an online temperature meter is installed, the retention time of the wastewater in the water distribution tank 2 is 15-20 min, the temperature of the online temperature meter is controlled to be 35-38 ℃, and then the wastewater enters the anaerobic ammonia oxidation reactor 3 through overflow.
In one embodiment, the anaerobic ammoxidation reactor 3 adopts a plug flow water inlet mode, the body is made of carbon steel lining FRP, a solid-liquid separation module is arranged inside the anaerobic ammoxidation reactor
3, the biochemical hydraulic retention time in the device is not less than 15 hours; an online pH meter, an online dissolved oxygen meter, an online ammonia nitrogen tester and an online nitrite nitrogen tester are arranged in the anaerobic ammonia oxidation reactor 3, a sludge circulating pump 13 is also arranged on the anaerobic ammonia oxidation reactor 3, and the sludge circulating pump 13 is used for sludge backflow and can discharge redundant granular sludge.
In one embodiment, the stirring device 14 is installed on the anoxic tank 4, and the material of the stirring device 14 is carbon steel, so that corrosion can be prevented.
In one embodiment, the bottom of the aerobic tank 5 is provided with a second microporous aerator 501, the connection point of an aeration pipe and an air inlet pipe is above the water surface of the aerobic tank 5, the air inlet pipe can adjust the air volume and is convenient to maintain, and in addition, an online dissolved oxygen meter is also arranged in the aerobic tank 5; a nitrifying liquid reflux pump 15 is arranged on a pipeline between the anoxic tank 4 and the aerobic tank 5, so that nitrifying liquid in the aerobic tank 5 is refluxed into the anoxic tank 3; install mud backwash pump 16 on the pipeline between swash plate clarifier 6 and the oxygen deficiency pond 4, can be with the partial mud backward flow in the swash plate clarifier 6 to the oxygen deficiency pond 4 in, in addition, 4 bottoms in the oxygen deficiency pond still are equipped with the mud valve, discharge the mud of 4 bottoms in the oxygen deficiency pond into the mud collecting pit.
In one embodiment, the clean water tank 7 conveys the treated wastewater to a wastewater storage tank through a clean water pump 17, and then the treated wastewater is treated by an industrial wastewater treatment system and is discharged or recycled after reaching the standard.
In addition, the equipment can adopt a container type integrated design, so that the construction is simple, the installation is convenient, the whole system is simple, the operation power consumption is low, the fault points are few, the maintenance is convenient, and the investment cost and the operation cost are low.
In addition, the aeration adjusting tank 1 and the A/O reactor module are respectively provided with two Roots blowers 11 (one for one), the output power and the air pressure of the Roots blower 11 meet the system requirements, the whole device comprises a blower, a silencer, a blower inlet filter, a sound-proof cover, pipelines, accessories, instruments, valves and the like, and the two Roots blowers can be started simultaneously.
An air filter is arranged at a suction inlet of the Roots blower 11, a silencer is arranged at an inlet and an outlet of the Roots blower 11, a pressure gauge and a check valve are arranged at an outlet of the Roots blower 11, and a blower starting automatic exhaust valve is arranged on a main pipe at the outlet of the Roots blower 11.
The air inlet pipeline for each aeration regulating tank 1 is provided with a pneumatic butterfly valve, and the opening degree of the valve is interlocked with the liquid phase.
The roots blower 11 for the a/O reactor module should be controlled by frequency conversion, which is interlocked with the aerobic reactor dissolved oxygen signal.
The specific working principle is as follows:
high ammonia nitrogen wastewater from a power plant enters an aeration regulating tank 1 through a water inlet pump, the high ammonia nitrogen wastewater from the power plant is temporarily stored and aerated in the aeration regulating tank 1, then enters a water distribution tank 2 to regulate the pH value, the wastewater is heated through a steam ejector 12, the temperature range is controlled to be 35-38 ℃, then the wastewater enters an anaerobic ammonia oxidation reactor 3 through overflow, and most NH (ammonia-nitrogen) is firstly carried out4 +Oxidizing the ammonia nitrogen into nitrogen, reducing the ammonia nitrogen in the original wastewater from more than 500mg/L to less than 100mg/L, saving the carbon source required in the traditional biological denitrification process by taking the ammonia as an electron donor, then entering an anoxic tank 4(A tank) to be stirred by a stirring device 14, supplementing the carbon source to the anoxic tank 4(A tank) by a glucose dosing device 10, blowing air into an aerobic tank 5(O tank) by a Roots blower 11 to supplement oxygen, reducing the residual ammonia nitrogen of 100mg/L in the wastewater to less than 5mg/L, simultaneously controlling the total nitrogen to be less than 15mg/L, entering the treated wastewater into a clean water tank 7, returning part of sludge from an inclined plate clarifier 6 to the anoxic tank 4(A tank) by a sludge return pump 15, entering the residual sludge collection tank by a sludge discharge valve, and conveying the sludge collection tank into an industrial wastewater treatment system by the pump, then the wastewater is treated by an industrial wastewater treatment system and is discharged or recycled after reaching the standard; the treated wastewater enters a clean water tank 7 through an inclined plate clarifier 6, the treated wastewater is conveyed to a wastewater storage tank through a clean water pump 17, then the wastewater is treated by an industrial wastewater treatment system, and the wastewater is discharged or recycled after reaching the standard.
The above is the preferred embodiment of the present invention, and the technical personnel in the field of the present invention can also change and modify the above embodiment, therefore, the present invention is not limited to the above specific embodiment, and any obvious improvement, replacement or modification made by the technical personnel in the field on the basis of the present invention all belong to the protection scope of the present invention.
Claims (7)
1. The utility model provides a high ammonia-nitrogen wastewater device is handled to anaerobic ammonium oxidation and A/O combined biological method which characterized in that includes:
the device comprises an aeration adjusting tank (1), wherein the aeration adjusting tank (1) is connected with a sodium hydroxide dosing device (8);
the water distribution tank (2) is connected with the aeration adjusting tank (1) through a pump, and the water distribution tank (2) is connected with a sodium hydroxide dosing device (8);
an anaerobic ammonia oxidation reactor (3), wherein the anaerobic ammonia oxidation reactor (3) is connected with a water distribution tank (2), a first microporous aerator (301) is arranged in the anaerobic ammonia oxidation reactor (3) and is connected with a nutritive salt dosing device (9),
the device comprises an A/O reactor module, wherein the A/O reactor module comprises an anoxic tank (4), an aerobic tank (5) and an inclined plate clarifier (6), a glucose dosing device (10) is connected to the anoxic tank (4), and a Roots blower (11) is connected to the aerobic tank (5);
the clean water tank (7), the clean water tank (7) is connected with the inclined plate clarifier (6).
2. The device for treating high ammonia nitrogen wastewater by the anaerobic ammonia oxidation and A/O combined biological method according to claim 1, characterized in that: the aeration adjusting tank (1) is connected with the Roots blower (11), perforated aeration pipes are arranged at the bottom of the aeration adjusting tank (1) and are arranged in a loop, and the perforated aeration pipes are made of UPVC.
3. The device for treating high ammonia nitrogen wastewater by the anaerobic ammonia oxidation and A/O combined biological method according to claim 1, characterized in that: a pH meter is installed in the water distribution tank (2), and the water distribution tank (2) is connected with a steam pipeline through a steam ejector (12) and is provided with an online thermometer.
4. The device for treating high ammonia nitrogen wastewater by the anaerobic ammonia oxidation and A/O combined biological method according to claim 1, characterized in that: an online pH meter, an online dissolved oxygen meter, an online ammonia nitrogen tester and an online nitrite nitrogen tester are arranged in the anaerobic ammonia oxidation reactor (3), and a sludge circulating pump (13) is further installed on the anaerobic ammonia oxidation reactor (3).
5. The device for treating high ammonia nitrogen wastewater by the anaerobic ammonia oxidation and A/O combined biological method according to claim 1, characterized in that: and a stirring device (14) is arranged on the anoxic tank (4).
6. The device for treating high ammonia nitrogen wastewater by the anaerobic ammonia oxidation and A/O combined biological method according to claim 1, characterized in that: the bottom of the aerobic tank (5) is provided with a second microporous aerator (501), a nitrifying liquid reflux pump (15) is arranged on a pipeline between the anoxic tank (4) and the aerobic tank (5), and a sludge reflux pump (16) is arranged on a pipeline between the inclined plate clarifier (6) and the anoxic tank (4).
7. The device for treating high ammonia nitrogen wastewater by the anaerobic ammonia oxidation and A/O combined biological method according to claim 1, characterized in that: the clean water tank (7) conveys the treated wastewater to a wastewater storage tank through a clean water pump (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022824149.5U CN214457466U (en) | 2020-11-30 | 2020-11-30 | Device for treating high ammonia nitrogen wastewater by anaerobic ammonia oxidation and A/O combined biological method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022824149.5U CN214457466U (en) | 2020-11-30 | 2020-11-30 | Device for treating high ammonia nitrogen wastewater by anaerobic ammonia oxidation and A/O combined biological method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214457466U true CN214457466U (en) | 2021-10-22 |
Family
ID=78185113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022824149.5U Active CN214457466U (en) | 2020-11-30 | 2020-11-30 | Device for treating high ammonia nitrogen wastewater by anaerobic ammonia oxidation and A/O combined biological method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214457466U (en) |
-
2020
- 2020-11-30 CN CN202022824149.5U patent/CN214457466U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101723510A (en) | Preliminary dexidation-anaerobism-oxygen deficit-multistage aerobic/anaerobic biological N and P removing method and device | |
| CN108046518B (en) | Enhanced nitrogen and phosphorus removal device and method for low-carbon source sewage | |
| CN103936229A (en) | Municipal sewage improved A2/O enhanced denitrification and dephosphorization treatment device and process | |
| CN201842731U (en) | Enhanced nitrogen and phosphorus removal sewage treatment system | |
| CN114291964B (en) | Sewage treatment system and method for denitrification and phosphorus recovery | |
| CN112811719B (en) | Autotrophic denitrification treatment system and method for urban sewage | |
| CN111099726A (en) | Synchronous denitrification and dephosphorization double-sludge sewage treatment system and treatment process thereof | |
| CN205328703U (en) | High ammonia -nitrogen concentration waste water high -efficiency biological processing apparatus | |
| CN104591392A (en) | Slow-released carbon source biochemical-denitrifying treatment device for swine wastewater with high ammonia nitrogen and low carbon nitrogen ratio as well as method for treating swine wastewater | |
| CN210683343U (en) | Rural domestic sewage MBR integration processing apparatus | |
| CN102381763B (en) | Device and method for treating ammonia nitrogen wastewater by using dioxygen biological filler | |
| CN201395543Y (en) | Aeration and sedimentation type sewage treatment system | |
| CN103880241A (en) | Sewage treatment equipment and sewage treatment method | |
| CN106830325A (en) | Using the A of fermented sludge2/ O BCO improved technologies | |
| CN201261748Y (en) | Chemical dephosphorization apparatus based on anoxic-anaerobic-oxidation ditch | |
| CN214457466U (en) | Device for treating high ammonia nitrogen wastewater by anaerobic ammonia oxidation and A/O combined biological method | |
| CN213771494U (en) | Upflow type sewage enhanced biological phosphorus removal coupled anaerobic ammonia oxidation denitrification integrated system | |
| CN101279795A (en) | Chemical phosphorus removal method and apparatus based on anoxic-anaerobic-oxidation ditch | |
| CN203866153U (en) | Improved reinforced A2/O denitrogenation and dephosphorization treating device for municipal sewage | |
| CN210974077U (en) | Sequencing batch activated sludge process variant equipment applied to small-sized sewage treatment | |
| CN208700689U (en) | A kind of up-flow AO sewage-treatment plant | |
| CN208500513U (en) | Intelligent water chemical treatment integrated system | |
| CN209367927U (en) | A kind of high concentration organic nitrogen waste water dis posal equipment | |
| CN208038125U (en) | The device of total nitrogen in a kind of removal sewage | |
| CN203048739U (en) | Urban wastewater partial nitrification and anaerobic ammonia oxidation denitrification device strengthening energy recovery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |