CN112897835A - Preparation device and domestication method for domesticating anaerobic digestion sludge into Feammox functional sludge - Google Patents
Preparation device and domestication method for domesticating anaerobic digestion sludge into Feammox functional sludge Download PDFInfo
- Publication number
- CN112897835A CN112897835A CN202110202408.7A CN202110202408A CN112897835A CN 112897835 A CN112897835 A CN 112897835A CN 202110202408 A CN202110202408 A CN 202110202408A CN 112897835 A CN112897835 A CN 112897835A
- Authority
- CN
- China
- Prior art keywords
- water
- sludge
- inlet
- concentration
- feammox
- 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.)
- Granted
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/02—Biological treatment
- C02F11/04—Anaerobic treatment; Production of methane by such processes
-
- 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
- C02F3/28—Anaerobic digestion processes
-
- 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
- C02F3/30—Aerobic and anaerobic processes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
- C02F2101/166—Nitrites
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/14—NH3-N
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/15—N03-N
Abstract
The invention provides a preparation device and a domestication method for domesticating anaerobic digestion sludge into Feammox functional sludge; the reaction device of the anaerobic iron ammoxidation process consists of a water inlet aeration unit, an activated sludge reaction unit and a temperature control unit; the water inlet aeration unit can keep the anaerobic condition of water inlet required by the process for a long time; the activated sludge reaction unit is provided with a stirring device and a three-phase separator, so that the activated sludge can be fully mixed with inlet water, the sludge, water and gas of outlet water can be separated, the activated sludge is prevented from flowing out along with the outlet water, and the sludge is effectively retained; the water bath interlayer arranged on the temperature control unit and the super constant temperature water bath can meet the reaction temperature condition. Meanwhile, in the reaction process, the mature and stable Feammox functional sludge can be cultured by continuously changing the concentration of the iron ions in the inlet water when the fed water is acclimated for about 70 days, and the seed sludge is taken from an anaerobic pool of a sewage plant, so that the cost is low and the materials are easy to obtain. The sludge source of the invention has higher cost advantage, and the acclimation time is not much different from that of the traditional process.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to a preparation device and a training method for acclimatizing anaerobic digestion sludge into Feammox functional sludge.
Background
China is in the development stage of industrialization and urbanization, and environmental problems caused by huge incremental pressure of pollutant emission are difficult to ignore. After the 'source control and emission reduction' is implemented nationwide, the organic pollution of the wastewater is effectively treated, the nitrogen and phosphorus pollution is increased to be a main environmental problem, the caused water eutrophication is the most typical and basically irreversible water environmental pollution problem, the health and the safety of human beings and other living bodies are seriously threatened, and the problem of water resource shortage caused by the pollution becomes one of important factors which seriously influence and restrict the high-speed development of the economy of China. The traditional biological denitrification process with high energy consumption and low efficiency can not meet the actual requirements, and the development of a sewage autotrophic biological denitrification treatment technology with low energy consumption, high efficiency and stable sustainable development is urgently needed.
Anaerobic Ammonium Oxidation (Feammox) is a microorganism-mediated anaerobic Ammonium Oxidation under iron reduction conditions, and is a newly discovered nitrogen circulation mode in recent years, which is a combination of earth nitrogen circulation and iron circulation and is commonly found in river banks, wetlands, paddy fields and other environments. The anaerobic iron ammoxidation process is used as an autotrophic biological denitrification process, accords with the future development direction of sewage treatment, and has a relatively high application prospect. At present, the application of an anaerobic iron ammoxidation process in sewage treatment is still in an incomplete test stage, anaerobic ammoxidation (Anammox) sludge is generally adopted in the selection of sludge, the anaerobic ammoxidation process is easily influenced by environmental factors, and the defect of long multiplication time of Anammox bacteria exists, so that the defects of high acclimation cost, long preparation period and the like of Anammox sludge are caused, and the method is not suitable for being used as the optimal selection of the Feammox sludge; meanwhile, the UASB reactor which is commonly adopted in the selection of the reaction device has the problems of insufficient mixing of muddy water, easy blockage of a three-phase separator and incapability of keeping the water inlet anaerobic condition for a long time, and causes unsatisfactory starting and running processes of the process.
Disclosure of Invention
In order to solve the technical problems, the invention aims to provide a preparation device and a training method for acclimating anaerobic digestion sludge into Feammox functional sludge; the specific technical scheme is as follows:
a preparation device for acclimatizing anaerobic digestion sludge into Feammox functional sludge comprises a water inlet aeration unit, an activated sludge reaction unit and a temperature control unit;
the water inlet aeration unit consists of a nitrogen cylinder, a gas flowmeter, an aeration disc, a water inlet barrel, a gas collecting bag, a gas washing bottle and a water inlet pump;
the nitrogen cylinder is connected with the gas flowmeter, then enters the water inlet barrel through the small hole through the pneumatic PU pipe, and is connected with the aeration disc;
the air collecting bag and the air washing bottle are connected with the water inlet barrel through a three-way ball valve and are respectively arranged at two ends of the three-way ball valve;
one end of the water inlet pump is connected with the water inlet barrel, and the other end of the water inlet pump is connected with the activated sludge reaction unit.
The preparation device for acclimating anaerobic digestion sludge into Feammox functional sludge has the preferred scheme that the active sludge reaction unit consists of a CSTR reactor, a three-phase separator, a speed regulator and a water outlet pool;
the CSTR reactor comprises a top cover, a bottom cover, a motor and a stirring paddle, and the main material is organic glass;
the top cover, the bottom cover and the motor are all connected by flanges, and the stirring paddle is connected to the lower end of the motor by a stainless steel coupler;
a water inlet and a sludge discharge port are arranged below the CSTR reactor, 3 sampling ports are arranged in the middle effective reaction area, a water outlet is arranged at the middle upper part, an exhaust port is arranged above the middle upper part, a check valve is arranged at the water inlet, and ball valves are arranged at the sludge discharge port, the sampling ports and the water outlet; the ball valve on the water outlet is connected with the PVC hose, and the outlet water flows into the water outlet pool through the PVC hose;
the motor drives the stirring paddle to stir the muddy water, and the speed regulator is connected with the motor and used for controlling the stirring speed;
the three-phase separator is bonded to the bottom of the CSTR cover.
The preparation device for acclimatizing anaerobic digestion sludge into Feammox functional sludge has the preferable scheme that the temperature control unit comprises a water bath interlayer and a super constant-temperature water bath;
the water bath interlayer wraps the outer side of an effective reaction area of the CSTR reactor, two ball valves are arranged at the upper part and the lower part and are connected with the super constant temperature water bath through PVC hoses, warm water enters the water bath interlayer from the lower ball valve from the super constant temperature water bath, then flows back through the upper ball valve, and the temperature is controlled through circulating flow.
The preferable scheme of the preparation device for acclimatizing anaerobic digestion sludge into Feammox functional sludge is that the three-phase separator is cylindrical, is made of organic glass and has an inner diameter of 170 mm.
The preferable scheme of the preparation device for acclimatizing the anaerobic digestion sludge into the Feammox functional sludge is that the CSTR reactor is mainly made of organic glass, the effective volume is about 5L, the inner diameter is 140mm, the effective height-diameter ratio is about 2.3: 1, and a water passing mode of downward entering and upward exiting is adopted.
A domestication method for domesticating anaerobic digestion sludge into Feammox functional sludge mainly comprises the operation process of a reaction device and the changing and adding process of the concentration of iron ions in inlet water;
the operation process of the reaction device is mainly divided into four main steps:
(1) selecting seed sludge: the inoculated sludge of the reactor is taken from anaerobic digested sludge treated by Fenton process in a sewage plant of a marine city. 1.5L-2L of sludge is inoculated into a reactor, and the hydraulic retention time is initially set to 8 h.
(2) Water inflow and aeration: firstly, placing the wastewater in a water inlet barrel, adding an iron ion solution, opening a nitrogen cylinder, adjusting a gas flow meter to control the nitrogen flow rate to be about 600L/h, leading a three-way ball valve to a gas washing cylinder, leading nitrogen into the water inlet barrel, removing dissolved oxygen in water, and discharging gas through the gas washing cylinder; after aerating for about 15min, measuring that the dissolved oxygen in the water reaches about 0.1mg/L, adjusting the pH value of the inlet water, then adjusting a three-way ball valve to lead the inlet water to an air collecting bag, and continuing aerating; when the gas collection bag is fully aerated, the aeration is stopped, and the three-way ball valve stays in the direction leading to the gas collection bag; the water inlet pump is closed before water distribution.
(3) The reaction mode is as follows: the continuous flow mode is adopted for operation, the water inlet pump is started to feed water, the water flows through the lower water inlet and the upper water outlet, and flows out of the upper water outlet ball valve and flows into the water outlet pool. In the reaction process, the liquid level in the water inlet bucket is reduced, and the nitrogen in the gas collection bag replenishes the space of the water inlet bucket and keeps the anaerobic condition for a long time; the stirring device is not closed after long-term operation.
(4) A temperature control mode: the temperature of the super constant temperature water bath is set at about 32 ℃, a submersible pump is arranged in the super constant temperature water bath, warm water enters a water bath interlayer from a lower ball valve from the super constant temperature water bath and then flows back by an upper ball valve, the temperature of an effective reaction area of the reactor is controlled by circulating flow, and the reactor is not closed after long-term operation.
The change of the concentration of the iron ions in the inlet water is mainly divided into five main stages:
(6) stage one: 1-15 days, NH in the inlet water4 +The concentration of N is controlled between 30 and 50mg/L, and the concentration of Fe (III) is controlled to be about 10 mg/L;
(7) and a second stage: controlling the concentration of Fe (III) in inlet water to be about 20mg/L and keeping the concentration of other elements unchanged within 16-26 days;
(8) and a third stage: controlling the concentration of Fe (III) in inlet water to be about 50mg/L and keeping the concentration of other elements unchanged within 27-31 days;
(9) and a fourth stage: controlling the concentration of Fe (III) in the inlet water to be about 70-80mg/L and keeping the concentration of other elements unchanged for 32-123 days;
(10) and a fifth stage: and the concentration of the Fe (III) of the inlet water is controlled to be about 40mg/L after 130 days, and the concentrations of other elements are unchanged.
The invention has the beneficial effects that: the gas collecting bag arranged in the water inlet aeration unit in the reactor device can store nitrogen, can feed water at the beginning of the process, and can perform nitrogen back-supplement on the space in the water inlet barrel in the reaction process, so that the anaerobic condition of water inlet required by the process can be maintained for a longer time; the selected CSTR reactor can fully mix the activated sludge and the inlet water, and the added cylindrical three-phase separator can realize the separation of the sludge, water and gas of the outlet water, prevent the activated sludge from flowing out along with the outlet water and effectively retain the sludge; the water bath interlayer arranged on the temperature control unit and the super constant temperature water bath can meet the reaction temperature condition. Meanwhile, in the reaction process, the mature and stable Feammox functional sludge can be cultured by continuously changing the concentration of the iron ions in the inlet water when the fed water is acclimated for about 70 days, and the seed sludge is taken from an anaerobic pool of a sewage plant, so that the cost is low and the materials are easy to obtain. Compared with the traditional Anammox reactor sludge as a seed sludge source, the sludge source has higher cost advantage, and the acclimation time is not much different from that of the traditional process.
Drawings
FIG. 1 is a schematic structural diagram of a reaction device for an anaerobic iron ammoxidation process;
FIG. 2 is a graph of the change in trinitrogen content of a Feammox reactor;
FIG. 3 is a graph showing the change in iron ion content in the Feammox reactor.
In the figure: 1. a nitrogen gas cylinder; 2. a gas flow meter; 3. a water inlet barrel; 4. an aeration disc; 5. an air collecting bag; 6. a gas washing bottle; 7. a water inlet pump; 8. a stirring paddle; 9. a three-phase separator; 10. a motor; 11. a speed regulator; 12. a water outlet pool; 13. water bath interlayer; 14. super constant temperature water bath; 15. A CSTR reactor; 16. a water inlet; 17. a sludge discharge port; 18. a sampling port; 19. a water outlet; 20. an exhaust port; 21. an effective reaction zone; 22. a top cover; 23. a bottom cover.
Detailed Description
The present invention will be further described with reference to the accompanying drawings, but it should not be construed that the scope of the present invention as defined above is limited to the following examples. Various alterations and modifications can be made without departing from the spirit of the invention as described above, and all such alterations and modifications are intended to be included within the scope of the invention, as determined by the knowledge of the skilled person and the routine practice.
As shown in FIGS. 1-3, the invention aims to provide a preparation device for acclimatizing anaerobic digestion sludge into Feammox functional sludge, which comprises a water inlet aeration unit, an activated sludge reaction unit and a temperature control unit;
the water inlet aeration unit consists of a nitrogen cylinder 1, a gas flowmeter 2, an aeration disc 4, a water inlet barrel 3, a gas collecting bag 5, a gas washing bottle 6 and a water inlet pump 7;
the nitrogen cylinder 1 is connected with the gas flowmeter 2, then enters the water inlet barrel 3 through the small hole by a pneumatic PU pipe, and is connected with the aeration disc 4;
the gas collecting bag 5 and the gas washing bottle 6 are connected with the water inlet barrel 3 through a three-way ball valve and are respectively arranged at two ends of the three-way ball valve;
one end of the water inlet pump 7 is connected with the water inlet barrel 3, and the other end is connected with the activated sludge reaction unit.
The activated sludge reaction unit consists of a CSTR reactor 15, a three-phase separator 9, a speed regulator 11 and a water outlet pool 12;
the CSTR reactor 15 comprises a top cover 22, a bottom cover 23, a motor 10 and a stirring paddle 8, and the main material is organic glass;
the top cover 22, the bottom cover 23 and the motor 10 are all connected by flanges, and the stirring paddle 8 is connected to the lower end of the motor 10 by a stainless steel coupler;
a water inlet 16 and a sludge discharge port 17 are arranged below the CSTR reactor 15, 3 sampling ports 18 are arranged in a middle effective reaction area 21, a water outlet 19 is arranged at the middle upper part, an exhaust port 20 is arranged above the middle effective reaction area, a check valve is arranged at the water inlet 16, and ball valves are arranged at the sludge discharge port 17, the sampling ports 18 and the water outlet 19; the ball valve on the water outlet 19 is connected with a PVC hose, and the outlet water flows into the water outlet pool 12 through the PVC hose;
the motor 10 drives the stirring paddle 8 to stir the muddy water, and the speed regulator 11 is connected with the motor 10 and used for controlling the stirring speed;
the three-phase separator 9 is bonded to the underside of the CSTR header.
The temperature control unit comprises a water bath interlayer 13 and a super constant temperature water bath 14;
the water bath interlayer 13 is wrapped outside an effective reaction area of the CSTR reactor, two ball valves are respectively arranged at the upper part and the lower part and are connected with the super constant temperature water bath 14 through PVC hoses, warm water enters the water bath interlayer 13 from the lower ball valve from the super constant temperature water bath 14 and then flows back through the upper ball valve, and the temperature is controlled through circulating flow.
The three-phase separator 9 is cylindrical, made of organic glass and has an inner diameter of 170 mm.
The CSTR reactor main material is organic glass, and effective volume is about 5L, and internal diameter 140mm, effective height-diameter ratio are about 2.3: 1, adopt the water mode of crossing of going into down going up and going out.
A domestication method for domesticating anaerobic digestion sludge into Feammox functional sludge mainly comprises the operation process of a reaction device and the changing and adding process of the concentration of iron ions in inlet water;
the operation process of the reaction device is mainly divided into four main steps:
(5) selecting seed sludge: the inoculated sludge of the reactor is taken from anaerobic digested sludge treated by Fenton process in a sewage plant of a marine city. 1.5L-2L of sludge is inoculated into a reactor, and the hydraulic retention time is initially set to 8 h.
(6) Water inflow and aeration: firstly, placing the wastewater in a water inlet barrel, adding an iron ion solution, opening a nitrogen cylinder, adjusting a gas flow meter to control the nitrogen flow rate to be about 600L/h, leading a three-way ball valve to a gas washing cylinder, leading nitrogen into the water inlet barrel, removing dissolved oxygen in water, and discharging gas through the gas washing cylinder; after aerating for about 15min, measuring that the dissolved oxygen in the water reaches about 0.1mg/L, adjusting the pH value of the inlet water, then adjusting a three-way ball valve to lead the inlet water to an air collecting bag, and continuing aerating; when the gas collection bag is fully aerated, the aeration is stopped, and the three-way ball valve stays in the direction leading to the gas collection bag; the water inlet pump is closed before water distribution.
(7) The reaction mode is as follows: the continuous flow mode is adopted for operation, the water inlet pump is started to feed water, the water flows through the lower water inlet and the upper water outlet, and flows out of the upper water outlet ball valve and flows into the water outlet pool. In the reaction process, the liquid level in the water inlet bucket is reduced, and the nitrogen in the gas collection bag replenishes the space of the water inlet bucket and keeps the anaerobic condition for a long time; the stirring device is not closed after long-term operation.
(8) A temperature control mode: the temperature of the super constant temperature water bath is set at about 32 ℃, a submersible pump is arranged in the super constant temperature water bath, warm water enters a water bath interlayer from a lower ball valve from the super constant temperature water bath and then flows back by an upper ball valve, the temperature of an effective reaction area of the reactor is controlled by circulating flow, and the reactor is not closed after long-term operation.
The change of the concentration of the iron ions in the inlet water is mainly divided into five main stages:
(11) stage one: 1-15 days, NH in the inlet water4 +The concentration of N is controlled between 30 and 50mg/L, and the concentration of Fe (III) is controlled to be about 10 mg/L;
(12) and a second stage: controlling the concentration of Fe (III) in inlet water to be about 20mg/L and keeping the concentration of other elements unchanged within 16-26 days;
(13) and a third stage: controlling the concentration of Fe (III) in inlet water to be about 50mg/L and keeping the concentration of other elements unchanged within 27-31 days;
(14) and a fourth stage: controlling the concentration of Fe (III) in the inlet water to be about 70-80mg/L and keeping the concentration of other elements unchanged for 32-123 days;
(15) and a fifth stage: and the concentration of the Fe (III) of the inlet water is controlled to be about 40mg/L after 130 days, and the concentrations of other elements are unchanged.
Example 1
In the embodiment, the change of the trinitrogen content of the Feammox reactor is shown in FIG. 2, in the operation process of 130 days, the ammonia nitrogen removal rate can reach as high as 24.76%, and the ammonia nitrogen removal rate is as high as 0.057 kgN/(m) at most3D), the nitrite nitrogen content of the effluent at the later stage is almost 0mg/L, and the effluent products are mainly nitrate nitrogen and nitrogen, which shows that the process successfully acclimates anaerobic digested sludge into Feammox functional sludge.
The change of the iron ion content of the Feammox reactor in this example is shown in FIG. 3, with the different stages of the reactor operating, Fe in the fourth stage3+The ion concentration is increased to 70-80mg/L, and Fe in the system2+The ion concentration is also increasing, Fe2+The highest generation amount can reach 22mg/L, which indicates that the reaction is addedFe of device3+Part of the iron is involved in the ammoxidation reaction of the iron and is converted into Fe2+Successful acclimation of the Feammox functional sludge in the reactor of the present invention is also illustrated.
Claims (6)
1. A preparation device for acclimatizing anaerobic digestion sludge into Feammox functional sludge is characterized in that: comprises a water inlet aeration unit, an activated sludge reaction unit and a temperature control unit;
the water inlet aeration unit consists of a nitrogen cylinder, a gas flowmeter, an aeration disc, a water inlet barrel, a gas collecting bag, a gas washing bottle and a water inlet pump;
the nitrogen cylinder is connected with the gas flowmeter, then enters the water inlet barrel through the small hole through the pneumatic PU pipe, and is connected with the aeration disc;
the air collecting bag and the air washing bottle are connected with the water inlet barrel through a three-way ball valve and are respectively arranged at two ends of the three-way ball valve;
one end of the water inlet pump is connected with the water inlet barrel, and the other end of the water inlet pump is connected with the activated sludge reaction unit.
2. The apparatus for producing sludge for acclimatization of anaerobically digested sludge into Feammox function sludge according to claim 1, wherein: the activated sludge reaction unit consists of a CSTR reactor, a three-phase separator, a speed regulator and a water outlet pool;
the CSTR reactor comprises a top cover, a bottom cover, a motor and a stirring paddle, and the main material is organic glass;
the top cover, the bottom cover and the motor are all connected by flanges, and the stirring paddle is connected to the lower end of the motor by a stainless steel coupler;
a water inlet and a sludge discharge port are arranged below the CSTR reactor, 3 sampling ports are arranged in the middle effective reaction area, a water outlet is arranged at the middle upper part, an exhaust port is arranged above the middle upper part, a check valve is arranged at the water inlet, and ball valves are arranged at the sludge discharge port, the sampling ports and the water outlet; the ball valve on the water outlet is connected with the PVC hose, and the outlet water flows into the water outlet pool through the PVC hose;
the motor drives the stirring paddle to stir the muddy water, and the speed regulator is connected with the motor and used for controlling the stirring speed;
the three-phase separator is bonded to the bottom of the CSTR cover.
3. The apparatus for producing sludge for acclimatization of anaerobically digested sludge into Feammox function sludge according to claim 1, wherein: the temperature control unit comprises a water bath interlayer and a super constant-temperature water bath;
the water bath interlayer wraps the outer side of an effective reaction area of the CSTR reactor, two ball valves are arranged at the upper part and the lower part and are connected with the super constant temperature water bath through PVC hoses, warm water enters the water bath interlayer from the lower ball valve from the super constant temperature water bath, then flows back through the upper ball valve, and the temperature is controlled through circulating flow.
4. The apparatus for producing sludge for acclimatization of anaerobically digested sludge into Feammox function sludge according to claim 2, wherein: the three-phase separator is cylindrical, is made of organic glass and has an inner diameter of 170 mm.
5. The apparatus for producing sludge for acclimatization of anaerobically digested sludge into Feammox function sludge according to claim 2, wherein: the CSTR reactor main material is organic glass, and effective volume is about 5L, and internal diameter 140mm, effective height-diameter ratio are about 2.3: 1, adopt the water mode of crossing of going into down going up and going out.
6. The acclimatization method for acclimatizing anaerobically digested sludge into Feammox functional sludge according to claim 1, characterized in that: mainly comprises the operation process of a reaction device and the changing and adding process of the concentration of the iron ions in the inlet water;
the operation process of the reaction device is mainly divided into four main steps:
(1) selecting seed mud; (2) water inflow aeration; (3) a reaction mode; (4) and (4) controlling the temperature.
The change of the concentration of the iron ions in the inlet water is mainly divided into five main stages:
(1) stage one: 1-15 days, NH in the inlet water4 +The concentration of N is controlled between 30 and 50mg/L, and the concentration of Fe (III) is controlled to be about 10mg/LRight;
(2) and a second stage: controlling the concentration of Fe (III) in inlet water to be about 20mg/L and keeping the concentration of other elements unchanged within 16-26 days;
(3) and a third stage: controlling the concentration of Fe (III) in inlet water to be about 50mg/L and keeping the concentration of other elements unchanged within 27-31 days;
(4) and a fourth stage: controlling the concentration of Fe (III) in the inlet water to be about 70-80mg/L and keeping the concentration of other elements unchanged for 32-123 days;
(5) and a fifth stage: and the concentration of the Fe (III) of the inlet water is controlled to be about 40mg/L after 130 days, and the concentrations of other elements are unchanged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110202408.7A CN112897835B (en) | 2021-02-23 | 2021-02-23 | Preparation device and domestication method for domesticating anaerobic digested sludge into Feamox functional sludge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110202408.7A CN112897835B (en) | 2021-02-23 | 2021-02-23 | Preparation device and domestication method for domesticating anaerobic digested sludge into Feamox functional sludge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112897835A true CN112897835A (en) | 2021-06-04 |
| CN112897835B CN112897835B (en) | 2023-08-25 |
Family
ID=76124572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110202408.7A Active CN112897835B (en) | 2021-02-23 | 2021-02-23 | Preparation device and domestication method for domesticating anaerobic digested sludge into Feamox functional sludge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112897835B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113687043A (en) * | 2021-08-23 | 2021-11-23 | 重庆长寿中法水务有限公司 | Industrial wastewater toxicity monitoring device and working method thereof |
| CN113912179A (en) * | 2021-10-15 | 2022-01-11 | 北京工业大学 | Rapid culture method for anaerobic ferric salt oxidized ammonia nitrogen and synchronous denitrification sludge |
| CN116218640A (en) * | 2023-02-28 | 2023-06-06 | 乐山师范学院 | Device for domesticating concentrated sludge into Feamox flora |
| CN117003386A (en) * | 2023-10-07 | 2023-11-07 | 深圳市盘古环保科技有限公司 | Starting method of iron ammonia oxidation coupling ferrous autotrophic denitrification system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150321933A1 (en) * | 2014-05-08 | 2015-11-12 | The Trustees Of Princeton University | Methods and compositions for nitrogen removal using feammox microorganisms |
| CN105271514A (en) * | 2015-11-13 | 2016-01-27 | 重庆大学 | Biological nitrogen removal method based on anaerobic Feammox and application thereof |
| CN106405052A (en) * | 2016-10-10 | 2017-02-15 | 南京大学 | Device for simulating iron-ammonia oxidation process of in-situ riparian zone soil and use method and application of device |
| CN109650536A (en) * | 2019-01-03 | 2019-04-19 | 大连理工大学 | The device and method of ammonia nitrogen anaerobism in-situ treatment based on ferrikinetics driving |
| CN111422993A (en) * | 2020-03-12 | 2020-07-17 | 广东工业大学 | Method for rapidly starting autotrophic ammonia oxidation by using heterotrophic denitrification granular sludge |
-
2021
- 2021-02-23 CN CN202110202408.7A patent/CN112897835B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150321933A1 (en) * | 2014-05-08 | 2015-11-12 | The Trustees Of Princeton University | Methods and compositions for nitrogen removal using feammox microorganisms |
| CN105271514A (en) * | 2015-11-13 | 2016-01-27 | 重庆大学 | Biological nitrogen removal method based on anaerobic Feammox and application thereof |
| CN106405052A (en) * | 2016-10-10 | 2017-02-15 | 南京大学 | Device for simulating iron-ammonia oxidation process of in-situ riparian zone soil and use method and application of device |
| CN109650536A (en) * | 2019-01-03 | 2019-04-19 | 大连理工大学 | The device and method of ammonia nitrogen anaerobism in-situ treatment based on ferrikinetics driving |
| CN111422993A (en) * | 2020-03-12 | 2020-07-17 | 广东工业大学 | Method for rapidly starting autotrophic ammonia oxidation by using heterotrophic denitrification granular sludge |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113687043A (en) * | 2021-08-23 | 2021-11-23 | 重庆长寿中法水务有限公司 | Industrial wastewater toxicity monitoring device and working method thereof |
| CN113912179A (en) * | 2021-10-15 | 2022-01-11 | 北京工业大学 | Rapid culture method for anaerobic ferric salt oxidized ammonia nitrogen and synchronous denitrification sludge |
| CN113912179B (en) * | 2021-10-15 | 2023-09-29 | 北京工业大学 | Rapid culture method for anaerobic ferric salt oxidized ammonia nitrogen and synchronous denitrification sludge |
| CN116218640A (en) * | 2023-02-28 | 2023-06-06 | 乐山师范学院 | Device for domesticating concentrated sludge into Feamox flora |
| CN117003386A (en) * | 2023-10-07 | 2023-11-07 | 深圳市盘古环保科技有限公司 | Starting method of iron ammonia oxidation coupling ferrous autotrophic denitrification system |
| CN117003386B (en) * | 2023-10-07 | 2023-12-22 | 深圳市盘古环保科技有限公司 | Starting method of iron ammonia oxidation coupling ferrous autotrophic denitrification system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112897835B (en) | 2023-08-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112897835B (en) | Preparation device and domestication method for domesticating anaerobic digested sludge into Feamox functional sludge | |
| WO2020119217A1 (en) | Anaerobic ammoxidation synergistic nitrogen removal process device of municipal sewage main and side streams and application method thereof | |
| CN107032506A (en) | It is segmented the apparatus and method that water outlet short distance nitration Anammox/ denitrifications handle sanitary sewage | |
| CN106186308B (en) | Integrated anaerobic ammonia oxidation granular sludge denitrification device and control method thereof | |
| CN106830324A (en) | A kind of subsection water inflow A2The apparatus and method of/O process strengthening biological carbon and phosphorous removals | |
| CN105217786B (en) | Based on DEAMOX reinforcing improvement subsection water inflow As2The apparatus and method of/O technique biological carbon and phosphorous removals | |
| CN104350012A (en) | Internal-circulation aeration anammox-membrane bioreactor | |
| CN103588352A (en) | Two-stage backflow simultaneous nitrogen and phosphorus removal device and technology for denitrification phosphorus removal, shortcut nitrification and anaerobic ammonia oxidation of municipal sewage | |
| CN109721156A (en) | Intermittent aerating integration/short-cut denitrification-Anammox processing treatment of advanced stage landfill leachate apparatus and method | |
| CN104860475B (en) | District drainage formula short distance nitration connects denitrification anaerobic ammoxidation and carries out the apparatus and method of sewage deep denitrogenation | |
| CN103663876B (en) | The apparatus and method of anoxic/aerobic SBR+ Anammox+aerobic SBR art breading low C/N domestic sewage advanced denitrogenation | |
| CN107399811A (en) | Integral two-part Anammox coupling denitrification removal of carbon and nitrogen device and its control operation method | |
| CN110240273B (en) | Device for inducing short-cut nitrification and denitrification by alternate starvation culture and control method thereof | |
| CN106966557A (en) | The apparatus and method that reinforcing nitrification DEAMOX biomembrane process handles city domestic sewage | |
| CN102531290B (en) | Method and device for sludge digestive fluid two-level biological denitrification | |
| CN109574218A (en) | Short distance nitration-fermentation/denitrification-anaerobic ammonia oxidation process processing treatment of advanced stage landfill leachate apparatus and method | |
| CN112811719A (en) | Autotrophic denitrification treatment system and method for urban sewage | |
| CN108862581A (en) | A kind of device and method that AO biomembrane+sludge fermentation coupling denitrification realizes sewage deep denitrogenation synchronous sludge decrement | |
| CN105712584A (en) | Denitrification method and device for synchronously treating livestock farm biogas liquid wastewater and municipal sewage through combination of segmented partial nitrification and anaerobic ammonia oxidation | |
| CN106430575A (en) | Method for realizing shortcut nitrification and denitrification nitrogen removal by oxidation ditch segmental water-feeding process | |
| CN109095727B (en) | Denitrification and carbon removal device and method for high-ammonia-nitrogen low-carbon-nitrogen-ratio sewage | |
| CN104355515B (en) | A kind of method of ferment based on sludge anaerobic enhanced biological nitrogen removal and mud decrement | |
| CN106045030B (en) | A2The apparatus and method of/O-UASB continuous flow city domestic sewage advanced nitrogen dephosphorization | |
| CN214528643U (en) | Preparation device for acclimatizing anaerobic digestion sludge into Feammox functional sludge | |
| CN203653325U (en) | Device for realizing partial nitrification by synergistic inhibition of activity of nitrifying bacteria by free ammonia and free nitrous acid |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |