CN112919630A - Method and device for denitrifying microalgae coupled anaerobic ammonium oxidation autotroph - Google Patents
Method and device for denitrifying microalgae coupled anaerobic ammonium oxidation autotroph Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
- C02F3/302—Nitrification and denitrification treatment
- C02F3/307—Nitrification and denitrification treatment characterised by direct conversion of nitrite to molecular nitrogen, e.g. by using the Anammox process
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
- C02F3/322—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae use of algae
- C02F3/325—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae use of algae as symbiotic combination of algae and bacteria
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/06—Controlling or monitoring parameters in water treatment pH
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/22—O2
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
Abstract
The invention discloses a method and a device for denitrifying microalgae coupled anaerobic ammonium oxidation autotroph, which comprise a reactor, a water inlet device and a water outlet device; the water inlet device and the water outlet device are communicated with the reactor; the reactor comprises a reaction barrel, a monitor, a stirring device and a filling frame; the reaction barrel comprises a barrel cover and a barrel body which are detachably connected; the top surface of the filler frame is fixedly arranged at the top of the inner wall of the barrel body, short-cut nitrification and anaerobic ammonia oxidation reaction are synchronously realized in the reactor, the occupied area of the process can be reduced, high-efficiency denitrification is realized, oxygen is generated by microalgae to replace the traditional aeration mode, the aeration energy consumption can be reduced, and the cost of sewage treatment is obviously reduced.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to a method and a device for denitrifying microalgae coupled anaerobic ammonium oxidation autotrophic organisms.
Background
In recent years, with the increasing population quantity of China and the increasing industrialization process of cities and towns, the increasing discharge amount of nitrogen-containing wastewater leads to the increase of the concentration of nitrogen in water, thereby bringing about serious water eutrophication. With the continuous improvement of the sewage discharge standard in China, ammonia nitrogen and total nitrogen become one of the restrictive indexes which definitely require emission reduction in the water pollutant discharge standard in China, and the high attention of the masses of people is also aroused.
Biological denitrification processes are commonly used to treat nitrogen-containing wastewater, such as anaerobically digested wastewater, aquaculture wastewater, and landfill leachate. However, about 45% -75% of the total energy consumption of municipal sewage treatment plants is due to the mechanized aeration process, especially denitrification in conventional activated sludge systems requires higher aeration energy input, and photosynthetic aeration, which is a possibility to replace mechanical aeration, has become a research hotspot in order to achieve self-sufficiency of energy for wastewater treatment.
Short-cut nitrification/anaerobic ammonia oxidation (PN/A) is a high-efficiency and low-consumption biological denitrification combined process and is widely concerned by researchers in recent years. The PN/A denitrification process does not need organic carbon sources to participate, the aeration requirement is reduced by 60%, however, additional aeration is still needed to provide dissolved oxygen, meanwhile, the temperature required by the anaerobic ammonia oxidation reaction is high, and the system heating can increase part of the treatment cost. The microalgae can generate oxygen under the illumination condition, dissolved oxygen required by short-range nitrification can be provided instead of mechanical aeration, and the illumination can provide certain reaction temperature for microorganisms through the photothermal effect, so that the reaction activity of the microorganisms is improved. Therefore, microalgae and an anaerobic ammonia oxidation autotrophic denitrification process are coupled to form a novel photobioreactor denitrification technology, and a new thought is provided for reducing the aeration and energy cost of a sewage treatment system.
Disclosure of Invention
The invention aims to provide a method and a device for denitrifying microalgae coupled anaerobic ammonium oxidation autotroph, which are used for solving the problems in the prior art and can realize sewage treatment with reduced energy consumption, high-efficiency denitrification and environmental friendliness and no pollution.
In order to achieve the purpose, the invention provides the following scheme:
the invention provides a device for denitrifying microalgae coupled with anaerobic ammonium oxidation autotrophs, which comprises a reactor, a water inlet device, a lighting device and a water outlet device, wherein the reactor is provided with a water inlet pipe and a water outlet pipe; the water inlet device and the water outlet device are communicated with the reactor; the lighting device is arranged on the periphery of the reactor;
the reactor comprises a reaction barrel, a monitor, a stirring device and a filling frame; the reaction barrel comprises a barrel cover and a barrel body; the barrel cover and the barrel body are detachably connected; the top end of the filler frame is detachably connected with the top of the inner wall of the barrel body, and the side wall of the filler frame is filled with carbon cloth; the monitor and the stirring device are respectively arranged on the top surface of the barrel cover; the bottom of the side wall of the barrel body is provided with a water inlet, and the middle part of the side wall of the barrel body is provided with a water outlet; the water inlet device is communicated with the barrel body through the water inlet hole; the water outlet device is communicated with the barrel body through the water outlet hole.
Preferably, the side surface of the filler frame is filled with carbon cloth, so that an attached bed is provided for later growth of fungi and algae.
Preferably, the barrel body is made of transparent materials, so that external sunlight and artificial light can be fully utilized, and energy is provided for algae.
Preferably, the interior of the barrel body is used for containing sewage to be purified and placing anaerobic ammonia oxidizing bacteria, and a reaction basis is provided for a subsequent purification process through the filler frame.
The packing frame comprises a fixed column, a fixed ring and a fixed cross beam; the two fixing rings are arranged and horizontally and fixedly arranged on the side walls of the four fixing columns respectively; two fixed cross beams are arranged; one ends of the two fixing columns are respectively fixedly connected with the middle part of one fixing cross beam, and one ends of the other two fixing columns are fixedly connected with the middle part of the other fixing cross beam; the other ends of the four fixing columns are respectively fixedly connected with one fixing ring; the other fixing ring is fixedly connected to the tops of the four fixing columns; two fixed cross beam both ends respectively with staving inner wall top can dismantle the connection, the carbon cloth series connection is installed in two between the solid fixed ring.
Preferably, the fixed columns, the fixed cross beams and the fixed rings form a framework of an attached bed of the fungi and the algae, and support of the carbon cloth is completed.
Preferably, the fixed cross beam avoids the center of the fixed ring, so that the interference with a transmission shaft is avoided, and the internal structure is optimized.
The monitor comprises a pH meter and a DO meter; the pH meter and the DO meter are respectively and fixedly arranged on the top surface of the barrel cover; the detection end of the pH meter and the detection end of the DO meter penetrate through the top surface of the barrel cover respectively and are arranged in the middle of the inner cavity of the barrel body.
Preferably, the pH meter and the DO meter can monitor the pH value of the sewage and the dissolved oxygen amount in the water during treatment, so that the pH value and the dissolved oxygen amount can be conveniently adjusted at any time during the treatment process.
The stirring device comprises a stirring motor, a transmission shaft and stirring blades; one end of the transmission shaft penetrates through the center of the barrel cover and is in transmission connection with an output shaft of the stirring motor, and the other end of the transmission shaft penetrates through the center of the fixed ring and is fixedly connected with the center of the stirring blade; the stirring motor is fixedly arranged on the top surface of the barrel cover; the stirring blades are arranged below the fixing rings and between the bottom surfaces of the inner cavities of the barrel bodies.
Preferably, the stirring device is arranged to stir the sewage in the treatment process, so that the convection of the sewage is accelerated, namely, the treatment efficiency of the sewage is accelerated.
The water inlet device comprises a water inlet tank, a water inlet pipe and a water inlet pump; one end of the water inlet pipe is arranged on the bottom surface inside the water inlet tank, and the other end of the water inlet pipe is communicated with the barrel body through the water inlet hole; the water inlet pump is arranged on the water inlet pipe.
The water outlet device comprises a water outlet tank, a water outlet pipe and a water outlet pump; one end of the water outlet pipe is arranged on the bottom surface inside the water outlet tank, and the other end of the water outlet pipe is communicated with the barrel body through the water outlet hole; the water outlet pump is arranged on the water outlet pipe.
The lighting device comprises a plurality of lamp groups; the lamp group is arranged on the side face of the barrel body, and the lamp of the lamp group illuminates towards the side face of the barrel body.
Preferably, the light supplementing to the reactor can be completed under the condition that the reactor has no natural illumination by arranging the lamp group, so that the fungi and the algae in the reactor can continuously react, and the purification efficiency is improved.
The DO meter also has a temperature detection function.
The barrel body is made of transparent materials.
A denitrification method of a microalgae coupling anaerobic ammonium oxidation autotrophic organism denitrification device comprises the following specific steps:
s1, introducing the nitrogen-containing wastewater into the reaction barrel through the water inlet device, adding anaerobic ammonium oxidation bacteria, starting the stirring device, and finally forming a biofilm with a dissolved oxygen gradient, wherein the biofilm is composed of anaerobic ammonium oxidation autotrophic organisms, ammonium oxidation bacteria and microalgae;
s2, the nitrogen-containing wastewater is fully contacted with microorganisms attached to the carbon cloth under the stirring action, wherein ammonia oxidizing bacteria in an anoxic environment convert part of ammonia nitrogen into nitrite nitrogen, anaerobic ammonia oxidizing bacteria in an anaerobic environment can convert the rest ammonia nitrogen and nitrite nitrogen into nitrogen to be removed, and a small amount of nitrogen is left in water in the form of nitrate nitrogen;
s3, microalgae can be naturally generated and attached to the carbon cloth; turning on the lighting device, illuminating microalgae on the outermost layer of the biomembrane to generate oxygen and promoting ammonia oxidizing bacteria to convert ammonia nitrogen in the wastewater into nitrite nitrogen; meanwhile, if the reaction temperature of the reaction barrel is insufficient, the photo-thermal effect of the lighting device can be utilized for temperature compensation;
s4, when the monitor detects that the pH value will drop first and then slowly rise to be stable or slightly drop after being stable, the lighting device is turned off and the stirring is stopped, the water is drained by the water outlet device after the monitor is placed for half an hour, and then the steps S1-S4 are repeated.
The invention discloses the following technical effects:
(1) the invention couples microalgae with autotrophic denitrification microorganisms such as AnOB, AOB and the like, generates oxygen through the microalgae, synchronously realizes short-cut nitrification and anaerobic ammoxidation reaction in a reactor, can reduce the occupied area of the process and realize high-efficiency denitrification.
(2) The lamp set is adopted to provide a light source for the microalgae, the traditional aeration mode is replaced by the oxygen generation of the microalgae, oxygen is provided for the subsequent ammonia oxidizing bacteria, the aeration energy consumption can be reduced, and the treatment cost of the sewage denitrification treatment system is obviously reduced.
(3) When the biological membrane is illuminated, the invention provides proper reaction temperature for the microorganisms by utilizing the photothermal effect, thereby not only improving the reaction activity of the microorganisms, but also reducing the energy consumption required by heating and further reducing the treatment cost.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
Fig. 1 is a schematic front view of the present invention.
FIG. 2 is a schematic front view of the reactor.
Fig. 3 is a schematic top view of a stuffing frame.
FIG. 4 is a schematic view of the structure of microcolonies on a carbon cloth.
The device comprises a reaction barrel-1, a barrel cover-11, a barrel body-12, a monitor-2, a pH meter-21, a DO instrument-22, a stirring device-3, a stirring motor-31, a transmission shaft-32, a stirring blade-33, a filling frame-4, a fixing column-41, a fixing ring-42, a carbon cloth-43, a fixing beam-44, a water inlet tank-51, a water inlet pipe-52, a water inlet pump-53, a water outlet tank-61, a water outlet pipe-62, a water outlet pump-63 and a lamp group-7.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
The invention provides a device for denitrifying microalgae coupled with anaerobic ammonium oxidation autotrophs, which is characterized by comprising a reactor, a water inlet device, a lighting device and a water outlet device; the water inlet device and the water outlet device are communicated with the reactor; the lighting device is arranged on the periphery of the reactor;
the reactor comprises a reaction barrel 1, a monitor 2, a stirring device 3 and a filling frame 4; the reaction barrel 1 comprises a barrel cover 11 and a barrel body 12; the barrel cover 11 and the barrel body 12 are detachably connected; the top end of the filler frame 4 is detachably connected with the top of the inner wall of the barrel body 12, and the side wall of the filler frame 4 is filled with carbon cloth 43; the monitor 2 and the stirring device 3 are respectively arranged on the top surface of the barrel cover 11; a water inlet hole is formed at the bottom of the side wall of the barrel body 12, and a water outlet hole is formed in the middle of the side wall of the barrel body 12; the water inlet device is communicated with the barrel body 12 through a water inlet hole; the water outlet device is communicated with the barrel body 12 through a water outlet hole.
The stuffing frame 4 comprises a fixed column 41, a fixed ring 42 and a fixed cross beam 44; two fixing rings 42 are arranged and horizontally and fixedly mounted on the side walls of the four fixing columns 41 respectively; two fixed cross beams 44 are provided; one end of each of the two fixing columns 41 is fixedly connected with the middle of one of the fixed cross beams 44, and one end of each of the other two fixing columns 41 is fixedly connected with the middle of the other fixed cross beam 44; the other ends of the four fixing columns 41 are respectively fixedly connected with a fixing ring 42; another fixing ring 42 is fixedly connected to the tops of the four fixing columns 41; two ends of the two fixed beams 44 are detachably connected with the top of the inner wall of the barrel body 12, and the carbon cloth 43 is installed between the two fixed rings 42 in series.
The monitor 2 comprises a pH meter 21 and a DO meter 22; the pH meter 21 and the DO meter 22 are respectively fixedly arranged on the top surface of the barrel cover 11; the detection end of the pH meter 21 and the detection end of the DO instrument 22 respectively penetrate through the top surface of the barrel cover 11 and are arranged in the middle of the inner cavity of the barrel body 12.
The stirring device 3 comprises a stirring motor 31, a transmission shaft 32 and a stirring blade 33; one end of the transmission shaft 32 penetrates through the center of the barrel cover 11 and is in transmission connection with an output shaft of the stirring motor 31, and the other end of the transmission shaft penetrates through the center of the fixing ring 42 and is fixedly connected with the center of the stirring blade 33; the stirring motor 31 is fixedly arranged on the top surface of the barrel cover 11; the stirring blade 33 is arranged between the lower fixing ring 42 and the bottom surface of the inner cavity of the barrel body 12.
The water inlet device comprises a water inlet tank 51, a water inlet pipe 52 and a water inlet pump 53; one end of the water inlet pipe 52 is arranged on the bottom surface inside the water inlet tank 51, and the other end is communicated with the barrel body 12 through a water inlet hole; the water inlet pump 53 is provided on the water inlet pipe 52.
The water outlet device comprises a water outlet tank 61, a water outlet pipe 62 and a water outlet pump 63; one end of the water outlet pipe 62 is arranged on the bottom surface inside the water outlet tank 61, and the other end is communicated with the barrel body 12 through a water outlet hole; the water outlet pump 63 is arranged on the water outlet pipe 62.
The lighting device comprises a plurality of lamp groups 71; the lamp set 71 is disposed on the side of the barrel 12, and the lamp set 71 illuminates the side of the barrel 12.
The DO meter 22 also has a temperature sensing function.
The barrel body 12 is made of transparent material.
A denitrification method of a microalgae coupling anaerobic ammonium oxidation autotrophic organism denitrification device is characterized by comprising the following specific steps:
s1, introducing the nitrogen-containing wastewater into the reaction barrel 1 through a water inlet device, adding anammox bacteria, starting a stirring device, and finally forming a biofilm with a dissolved oxygen gradient, wherein the biofilm is composed of anammox autotrophs, ammonia oxidizing bacteria and microalgae, and the anaerobic ammonium oxidation autotrophs are contained in the reaction barrel 1;
s2, the nitrogen-containing wastewater is fully contacted with microorganisms attached to the carbon cloth 43 under the stirring effect, wherein ammonia oxidizing bacteria in an anoxic environment convert part of ammonia nitrogen into nitrite nitrogen, anaerobic ammonia oxidizing bacteria in an anaerobic environment can convert the rest ammonia nitrogen and nitrite nitrogen into nitrogen to be removed, and a small amount of nitrogen is left in water in the form of nitrate nitrogen;
s3, microalgae can be naturally generated and attached to the carbon cloth 43; turning on a lighting device, illuminating microalgae on the outermost layer of the biomembrane to generate oxygen and promoting ammonia oxidizing bacteria to convert ammonia nitrogen in the wastewater into nitrite nitrogen; meanwhile, if the reaction temperature of the reaction barrel 1 is insufficient, the photo-thermal effect of the lighting device can be utilized for temperature compensation;
s4, when the monitor 2 detects that the pH value is decreased first and then slowly increased to be stable or slightly decreased after being stable, the lighting device is turned off and the stirring is stopped, the water is drained by the water draining device after the device is placed for half an hour, and then the steps S1-S4 are repeated.
In one embodiment of the invention, the effective volume of the reactor is 3.5L, and the packing holder 4 is filled with packing consisting of carbon cloth 43 as a carrier in an amount of about 0.3m3/m3(ii) a The process comprises the following operation processes: NH being present in the inlet tank 514 +The simulated nitrogen-containing wastewater with the N concentration of about 100mg/L enters the reactor under the power of a water inlet pump 53. The pH value of the wastewater in the reactor is adjusted to about 8.0 before the reaction starts, the power of each group of lamps in the lamp group 7 is 50W, the distance from the outer wall of the reactor is 10cm-20cm, and when the ambient temperature is about 25 ℃, the illumination can not only maintain the water temperature at about 30 ℃, but also assist the microalgae to produce oxygen. Detecting dissolved oxygen and temperature in the wastewater by using a DO instrument 22 with temperature detection, wherein DO is controlled to be 0.5-4 mg/L during illumination, the temperature is maintained to be about 30 +/-5 ℃, and a pH meter 21 is used for detecting and recording the reaction condition in the reactor; when the pH value changes smoothly, the illumination and the stirring are closed, and the reactor is drained after standing and settling for half an hour; the determination shows that the total nitrogen removal rate is about 58% after continuous illumination for 8 hours, and the total nitrogen removal rate of the reactor only reaches about 45% after the reactor is subjected to dark reaction for 2 hours after illumination for 6 hours under the same condition.
The invention discloses the following technical effects:
(1) the invention couples microalgae with autotrophic denitrification microorganisms such as AnOB, AOB and the like, generates oxygen through the microalgae, synchronously realizes short-cut nitrification and anaerobic ammoxidation reaction in a reactor, can reduce the occupied area of the process and realize high-efficiency denitrification.
(2) The lamp set is adopted to provide a light source for the microalgae, the traditional aeration mode is replaced by the oxygen generation of the microalgae, oxygen is provided for the subsequent ammonia oxidizing bacteria, the aeration energy consumption can be reduced, and the treatment cost of the sewage denitrification treatment system is obviously reduced.
(3) When the biological membrane is illuminated, the invention provides proper reaction temperature for the microorganisms by utilizing the photothermal effect, thereby not only improving the reaction activity of the microorganisms, but also reducing the energy consumption required by heating and further reducing the treatment cost.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.
Claims (10)
1. A device for denitrifying microalgae coupled with anaerobic ammonium oxidation autotrophs is characterized by comprising a reactor, a water inlet device, a lighting device and a water outlet device; the water inlet device and the water outlet device are communicated with the reactor; the lighting device is arranged on the periphery of the reactor;
the reactor comprises a reaction barrel (1), a monitor (2), a stirring device (3) and a filling frame (4); the reaction barrel (1) comprises a barrel cover (11) and a barrel body (12); the barrel cover (11) is detachably connected with the barrel body (12); the top end of the filler frame (4) is detachably connected with the top of the inner wall of the barrel body (12), and the side wall of the filler frame (4) is filled with carbon cloth (43); the monitor (2) and the stirring device (3) are respectively arranged on the top surface of the barrel cover (11); a water inlet hole is formed in the bottom of the side wall of the barrel body (12), and a water outlet hole is formed in the middle of the side wall of the barrel body (12); the water inlet device is communicated with the barrel body (12) through the water inlet hole; the water outlet device is communicated with the barrel body (12) through the water outlet hole.
2. The device for denitrification of microalgae coupled with anammox autotroph according to claim 1, wherein: the packing frame (4) comprises a fixing column (41), a fixing ring (42) and a fixing cross beam (44); the two fixing rings (42) are arranged and horizontally and fixedly mounted on the side walls of the four fixing columns (41) respectively; two fixed cross beams (44) are arranged; one ends of the two fixing columns (41) are respectively fixedly connected with the middle part of one fixing cross beam (44), and one ends of the other two fixing columns (41) are fixedly connected with the middle part of the other fixing cross beam (44); the other ends of the four fixing columns (41) are respectively fixedly connected with one fixing ring (42); the other fixing ring (42) is fixedly connected to the tops of the four fixing columns (41); two ends of the fixed cross beam (44) are detachably connected with the top of the inner wall of the barrel body (12) respectively, and the carbon cloth (43) is installed between the two fixed rings (42) in series.
3. The device for denitrification of microalgae coupled with anammox autotroph according to claim 1, wherein: the monitor (2) comprises a pH meter (21) and a DO meter (22); the pH meter (21) and the DO meter (22) are respectively and fixedly arranged on the top surface of the barrel cover (11); the detection end of the pH meter (21) and the detection end of the DO instrument (22) respectively penetrate through the top surface of the barrel cover (11) and are arranged in the middle of the inner cavity of the barrel body (12).
4. The device for denitrification of microalgae coupled with anammox autotroph according to claim 2, wherein: the stirring device (3) comprises a stirring motor (31), a transmission shaft (32) and a stirring blade (33); one end of the transmission shaft (32) penetrates through the center of the barrel cover (11) and is in transmission connection with an output shaft of the stirring motor (31), and the other end of the transmission shaft penetrates through the center of the fixing ring (42) and is fixedly connected with the center of the stirring blade (33); the stirring motor (31) is fixedly arranged on the top surface of the barrel cover (11); the stirring blade (33) is arranged below the fixing ring (42) and between the bottom surface of the inner cavity of the barrel body (12).
5. The device for denitrification of microalgae coupled with anammox autotroph according to claim 1, wherein: the water inlet device comprises a water inlet tank (51), a water inlet pipe (52) and a water inlet pump (53); one end of the water inlet pipe (52) is arranged on the bottom surface inside the water inlet tank (51), and the other end of the water inlet pipe is communicated with the barrel body (12) through the water inlet hole; the water inlet pump (53) is arranged on the water inlet pipe (52).
6. The device for denitrification of microalgae coupled with anammox autotroph according to claim 1, wherein: the water outlet device comprises a water outlet tank (61), a water outlet pipe (62) and a water outlet pump (63); one end of the water outlet pipe (62) is arranged on the bottom surface inside the water outlet tank (61), and the other end of the water outlet pipe is communicated with the barrel body (12) through the water outlet hole; the water outlet pump (63) is arranged on the water outlet pipe (62).
7. The device for denitrification of microalgae coupled with anammox autotroph according to claim 1, wherein: the lighting device comprises a number of lamp groups (71); the lamp group (71) is arranged on the side surface of the barrel body (12), and the lamp group (71) illuminates the side surface of the barrel body (12).
8. The device for denitrification of microalgae coupled with anammox autotroph according to claim 3, wherein: the DO meter (22) also has a temperature detection function.
9. The device for denitrification of microalgae coupled with anammox autotroph according to claim 1, wherein: the barrel body (12) is made of transparent materials.
10. A denitrification method of a microalgae-coupled anammox autotrophic denitrification apparatus according to claims 1-9, characterized in that the method comprises the following steps:
s1, introducing the nitrogen-containing wastewater into the reaction barrel (1) through the water inlet device, adding anammox bacteria, starting the stirring device, and finally forming a biofilm with a dissolved oxygen gradient, wherein the biofilm is composed of anammox autotrophs, ammonia oxidizing bacteria and microalgae, in the reaction barrel (1);
s2, the nitrogen-containing wastewater is fully contacted with microorganisms attached to the carbon cloth (43) under the stirring action, wherein part of ammonia nitrogen is converted into nitrite nitrogen by ammonia oxidizing bacteria in an anoxic environment, the rest ammonia nitrogen and nitrite nitrogen can be converted into nitrogen to be removed by anaerobic ammonia oxidizing bacteria in an anaerobic environment, and a small amount of nitrogen is left in water in the form of nitrate nitrogen;
s3, microalgae can be naturally generated and attached to the carbon cloth (43); turning on the lighting device, illuminating microalgae on the outermost layer of the biomembrane to generate oxygen and promoting ammonia oxidizing bacteria to convert ammonia nitrogen in the wastewater into nitrite nitrogen; meanwhile, if the reaction temperature of the reaction barrel (1) is insufficient, the photo-thermal effect of the lighting device can be utilized for temperature compensation;
s4, when the monitor (2) detects that the pH value is reduced firstly, then slowly rises to be stable or is slightly reduced after being stable, the lighting device is turned off and the stirring is stopped, the water is drained by the water draining device after the device is kept still for half an hour for 50 percent, and then the steps S1-S4 are repeated.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110087219.XA CN112919630B (en) | 2021-01-22 | 2021-01-22 | Method and device for denitrifying microalgae coupled anaerobic ammonium oxidation autotroph |
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| CN202110087219.XA CN112919630B (en) | 2021-01-22 | 2021-01-22 | Method and device for denitrifying microalgae coupled anaerobic ammonium oxidation autotroph |
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| CN112919630A true CN112919630A (en) | 2021-06-08 |
| CN112919630B CN112919630B (en) | 2022-07-05 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114506929A (en) * | 2022-02-18 | 2022-05-17 | 江苏环保产业技术研究院股份公司 | River water pollution treatment device and method |
| CN114873837A (en) * | 2022-04-13 | 2022-08-09 | 北京工业大学 | Method and device for realizing deep nitrogen and phosphorus removal by PD/A in-situ coupling algae |
| CN114890551A (en) * | 2022-06-08 | 2022-08-12 | 华中科技大学 | Tandem type biological denitrification method based on bacterial-algae symbiosis |
| CN114906937A (en) * | 2022-05-27 | 2022-08-16 | 华南理工大学 | Low-energy-consumption full-automatic denitrification process |
| CN115028321A (en) * | 2022-06-24 | 2022-09-09 | 华中科技大学 | Process for purifying high ammonia nitrogen wastewater by using microalgae coupled short-cut nitrification activated sludge |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106966499A (en) * | 2017-04-17 | 2017-07-21 | 武汉理工大学 | A kind of illuminated reaction unit and its operation method for handling low C/N sewage |
| CN108298762A (en) * | 2018-01-15 | 2018-07-20 | 大连理工大学 | A kind of combination SNAD techniques and bioreactor expose oneself the method for gas denitrogenation dephosphorizing |
| CN108455786A (en) * | 2018-01-15 | 2018-08-28 | 大连理工大学 | A kind of method of sludge-digestion liquid microalgae Anammox coupling production capacity |
| CN108975609A (en) * | 2018-07-26 | 2018-12-11 | 大连海川博创环保科技有限公司 | A kind of method of combination bioreactor and SNAD technique from Air Exposure sludge-digestion liquid |
-
2021
- 2021-01-22 CN CN202110087219.XA patent/CN112919630B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106966499A (en) * | 2017-04-17 | 2017-07-21 | 武汉理工大学 | A kind of illuminated reaction unit and its operation method for handling low C/N sewage |
| CN108298762A (en) * | 2018-01-15 | 2018-07-20 | 大连理工大学 | A kind of combination SNAD techniques and bioreactor expose oneself the method for gas denitrogenation dephosphorizing |
| CN108455786A (en) * | 2018-01-15 | 2018-08-28 | 大连理工大学 | A kind of method of sludge-digestion liquid microalgae Anammox coupling production capacity |
| CN108975609A (en) * | 2018-07-26 | 2018-12-11 | 大连海川博创环保科技有限公司 | A kind of method of combination bioreactor and SNAD technique from Air Exposure sludge-digestion liquid |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114506929A (en) * | 2022-02-18 | 2022-05-17 | 江苏环保产业技术研究院股份公司 | River water pollution treatment device and method |
| CN114506929B (en) * | 2022-02-18 | 2022-11-25 | 江苏环保产业技术研究院股份公司 | River water pollution treatment device and method |
| CN114873837A (en) * | 2022-04-13 | 2022-08-09 | 北京工业大学 | Method and device for realizing deep nitrogen and phosphorus removal by PD/A in-situ coupling algae |
| CN114906937A (en) * | 2022-05-27 | 2022-08-16 | 华南理工大学 | Low-energy-consumption full-automatic denitrification process |
| CN114890551A (en) * | 2022-06-08 | 2022-08-12 | 华中科技大学 | Tandem type biological denitrification method based on bacterial-algae symbiosis |
| CN115028321A (en) * | 2022-06-24 | 2022-09-09 | 华中科技大学 | Process for purifying high ammonia nitrogen wastewater by using microalgae coupled short-cut nitrification activated sludge |
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