CN111115821B - Autotrophic nitrogen removal integrated system based on MBBR and quick starting method - Google Patents
Autotrophic nitrogen removal integrated system based on MBBR and quick starting method Download PDFInfo
- Publication number
- CN111115821B CN111115821B CN202010065069.8A CN202010065069A CN111115821B CN 111115821 B CN111115821 B CN 111115821B CN 202010065069 A CN202010065069 A CN 202010065069A CN 111115821 B CN111115821 B CN 111115821B
- Authority
- CN
- China
- Prior art keywords
- reaction tank
- water
- reaction
- aeration
- water outlet
- 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
Classifications
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Abstract
The invention discloses an autotrophic nitrogen removal integrated system based on MBBR and a quick starting method, and belongs to the technical field of biological nitrogen removal of wastewater. The method solves the problems of large system occupation area, complex process control and the like caused by the fact that a short-cut nitrification reactor and an anaerobic ammonia oxidation reactor in the prior art are required to be placed separately. The device comprises a reaction tank, a stirring device, an aeration device, a total water inlet pipeline, a total water outlet pipeline and an exhaust pipeline, wherein the reaction tank comprises a reaction tank main body, a first reaction tank and a second reaction tank are arranged in an inner cavity of the reaction tank main body, the first reaction tank is located above, the second reaction tank is located below, and a separation plate is arranged between the first reaction tank and the second reaction tank. The invention combines short-cut nitrification and anaerobic ammoxidation or CANON coupling into an integrated device, and can aerate an anaerobic ammoxidation zone according to the running condition of the system to realize the CANON function of the zone.
Description
Technical Field
The invention relates to the technical field of biological denitrification of wastewater, in particular to an autotrophic denitrification integrated system based on MBBR and a quick starting method.
Background
At present, with the deep knowledge of nitrogen conversion, the applicability of biological denitrification is increased, researchers propose new biological denitrification modes, such as partial short-cut nitrification-anaerobic ammonia oxidation (PN/A), and compared with the traditional biological denitrification technology, the method has the advantages that ammonia nitrogen is oxidized into nitrous by short-cut nitrification, the oxygen demand is saved by about 60%, and the energy consumption and investment cost are effectively reduced; the anaerobic ammoxidation process uses ammonium salt as an electron donor and nitrite as an electron acceptor, so that ammonia nitrogen and nitrous are combined to form nitrogen, an additional carbon source is not needed, and the treatment cost is saved. The method has the advantages of high-efficiency treatment effect, energy consumption saving, cost reduction, sludge yield reduction and no need of additional carbon source, thereby being more and more favored,
the existing PN/A biological denitrification method is mainly divided into 2 sections of processes, namely, two reactions are arranged in 2 reactors to run in series, and the method has the advantages of simplicity in operation, convenience in running, easiness in controlling process parameters and the like, but the 2 sections of treatment processes occupy large space due to the fact that the two reactors run separately, and the process flow is complex.
The related research reports of the prior art mainly include:
CN110436631a discloses a combined denitrification-nitrosation-anaerobic ammoxidation apparatus and a wastewater treatment method, which comprises a raw water tank, a denitrification reactor, a denitrification water outlet tank, a nitrosation reactor, a water outlet sedimentation tank, an anaerobic ammoxidation reactor, an anaerobic ammoxidation water outlet tank and a reflux tank which are sequentially connected in series. The device is connected in series by a plurality of reactors, and each reactor is provided with a water outlet tank, so that the defects of complex process flow and large occupied area are caused in practical engineering application.
CN110563271a discloses a device and a method for realizing deep denitrification of urban domestic sewage by coupling short-cut nitrification-anaerobic ammonia oxidation and denitrification, which comprise a raw water tank, a denitrification dephosphorization-short-cut nitrification biomembrane reactor, a first intermediate water tank and an anaerobic ammonia oxidation reactor which are sequentially connected in series. The method is provided with the denitrification dephosphorization-shortcut nitrification biomembrane reactor and the anaerobic ammoxidation reactor which are connected in series, so that the occupied area is large.
CN110436704a discloses an urban sewage treatment upgrading and reforming process based on anaerobic ammonia oxidation, the device comprises a water inlet tank, a plug-flow reactor and a sedimentation tank which are sequentially connected in series, wherein the plug-flow reactor is composed of an aerobic zone i, a built-in sedimentation tank, an aerobic zone ii, a selective aeration tank, an anoxic tank and an aerobic zone iii which are connected in series. The bottom of the aerobic zone of the plug-flow reactor is provided with a fan, and the anoxic zone and the selective aeration tank are provided with stirring devices, so that the defects of complex process flow, large occupied area, hierarchical control and the like are caused in practical engineering application.
CN110104903a describes an integrated short-cut nitrification anaerobic ammonia oxidation device and a treatment process thereof, the device comprises a reactor main body, an aeration device, a gas/liquid separation tank, a three-phase separation device, a gas stripping reflux device and other components, the reactor main body comprises an aerobic zone, an anoxic zone, an anaerobic ammonia oxidation zone and a sedimentation zone which are connected in series in anticlockwise order, sewage is subjected to denitrification through a whole-course autotrophic denitrification functional zone, and sludge is precipitated and then enters the reactor again through gas stripping reflux. The device is an integrated denitrification device, and although the occupied area is saved, autotrophic denitrification reaction is carried out by utilizing activated sludge and fixed bed filler, the sludge is required to flow back, and the fixed bed filler is also required to be backwashed regularly.
The research of the prior art method shows that: in the prior art, the short-cut nitrification reactor and the anaerobic ammoxidation reaction have the defect of large occupied area, and an activated sludge system is mostly adopted, and effluent water is required to pass through a secondary sedimentation tank and has the defect of large occupied area or back flushing, so that an autotrophic denitrification integrated system which is simple and convenient to operate and occupies space and saves water and is based on MBBR is urgently needed.
Disclosure of Invention
The invention aims to provide an autotrophic nitrogen removal integrated system based on MBBR and a quick starting method, which realize the quick starting of the autotrophic nitrogen removal system by starting short-range nitrification and then inoculating anaerobic ammonia oxidation or CANON, and have the advantages of small occupied area, quick starting and high nitrogen removal load.
One of the tasks of the invention is to provide an autotrophic nitrogen removal integrated system based on MBBR, which adopts the following technical scheme:
an autotrophic nitrogen removal integrated system based on MBBR comprises a reaction tank, a stirring device, an aeration device, a total water inlet pipeline, a total water outlet pipeline and an exhaust pipeline, wherein the reaction tank comprises a reaction tank main body, a first reaction tank and a second reaction tank are arranged in an inner cavity of the reaction tank main body, the first reaction tank is positioned above, the second reaction tank is positioned below, the bottom surfaces of the first reaction tank and the second reaction tank are identical in shape and bottom area, and a separation plate is arranged between the first reaction tank and the second reaction tank;
the pool wall of the first reaction pool, the pool wall of the second reaction pool and the outer wall of the reaction pool main body respectively reserve certain distances to be used as a water channel, and a water channel air outlet hole is formed in the upper part of the water channel;
the upper part of the first reaction tank and the upper part of the reaction tank main body are reserved with a certain distance to be used as a first reaction tank water outlet channel, and the lower part of the first reaction tank is provided with a first reaction tank water inlet;
the lower part and the upper part of the second reaction tank are respectively provided with a second reaction tank water inlet and a second reaction tank water outlet.
As a preferable scheme of the invention, interception screens are respectively arranged at the water outlet channel of the first reaction tank, the water inlet of the second reaction tank and the water outlet of the second reaction tank.
As another preferable scheme of the invention, the stirring device refers to a submersible stirrer positioned in the second reaction tank, and the aeration device refers to aeration pipes positioned at the bottom of the first reaction tank and the bottom of the second reaction tank.
Further, the water inlet of the first reaction tank is connected with a total water inlet pipeline penetrating through the water channel, the water outlet of the second reaction tank is connected with a total water outlet pipeline penetrating through the water channel, and the water outlet of the second reaction tank is also connected with a second reaction tank exhaust pipeline leading into the water channel.
The invention further aims to provide a quick starting method of the autotrophic nitrogen removal integrated system based on MBBR, which sequentially comprises the following steps:
a. starting preparation, namely adding a suspension carrier into the first reaction tank and the second reaction tank, wherein the filling rate is 20% -67%; the first reaction tank and the second reaction tank are respectively inoculated with common activated sludge, and the concentration of the sludge in the first reaction tank and the second reaction tank after inoculation is 3-5g/L;
b. nitrosation is started, water is continuously fed, an aeration device in a first reaction tank is started, a stirring device in a second reaction tank is started, and DO of the first reaction tank is controlled to be 2.0-3.0mg/L, and the aeration intensity is controlled>4m 3 /(m 2 H); controlling the rotating speed of the stirring device in the second reaction tank to be 20-30r/min, and running the stirring device to the sludge concentration in the first reaction tank and the second reaction tank<0.5g/L; continuously feeding water, and running until the ammoxidation volume in the first reaction tank is negativeLotus seed>1.0kgN/(m 3 D), entering the next step;
c. anaerobic ammonia oxidation is started, mature anaerobic ammonia oxidation suspension carriers are inoculated into the second reaction tank, the inoculation rate is 3-5%, and water is continuously fed into the first reaction tank; the DO of the first reaction tank is controlled to be 1.0-2.5mg/L, and the aeration intensity is controlled>2.0m 3 /(m 2 H); the rotation speed of the stirring device is controlled to be 20-30r/min by the second reaction tank; operating until TN of the second reaction tank removes the volume load>1.0kgN/(m 3 D), entering the next step;
d. autotrophic denitrification stably runs, continuously feeds water, and controls DO (DO) at 2.0-3.0mg/L and aeration intensity in a first reaction tank>4m 3 /(m 2 H), controlling the rotating speed of the stirring device to be 30-45r/min by the second reaction tank, and discharging the effluent through a total water outlet pipeline; when the nitrous nitrogen/ammonia nitrogen in the effluent of the first reaction tank is less than or equal to 1.2, the DO of the first reaction tank is controlled to be 2.0-3.0mg/L, and the aeration degree is controlled>4m 3 /(m 2 H), opening the aeration device of the second reaction tank, controlling DO to be 0.5-1.0 mg/L and aeration intensity>2m 3 /(m 2 H), controlling the rotating speed of the stirring device to be 30-45r/min, and discharging the effluent through a total water outlet pipeline.
The invention relates to an autotrophic nitrogen removal integrated system based on MBBR, which has the working principle that:
the autotrophic denitrification integrated system can effectively save occupied area and is simple to operate; the autotrophic nitrogen removal process is loaded by using a pure membrane MBBR process, high-load treatment of total nitrogen can be realized without a carbon source, so that functional microorganisms are enriched in an MBBR suspension carrier, a secondary sedimentation tank and a membrane separation technology are not needed, the occupied area is saved, and secondary cleaning is avoided; the stirring rate and the aeration intensity of a first reaction tank DO at the upper part of the integrated system and a second reaction tank DO at the lower part of the integrated system are controlled, so that the total effluent ammonia nitrogen is ensured to reach the standard; when the fluctuation appears in the inflow, the first reaction tank on the upper part of the integrated system can not meet the expected requirement, and the perforation aeration at the bottom of the second reaction tank on the lower part of the integrated system can be started to carry out CANON reaction, so that the ammonia nitrogen of the total outflow is ensured to reach the standard stably.
Compared with the prior art, the invention has the following beneficial technical effects:
1) The autotrophic nitrogen removal integrated system based on the MBBR integrates the short-cut nitrification and the anaerobic ammonia oxidation or the CANON into an integrated device, so that the occupied area is effectively saved, and the investment operation cost is reduced.
2) The method has the advantages that the energy is saved, the consumption is reduced, the main denitrification process is changed from the traditional nitrification and denitrification into the autotrophic denitrification technology, the aeration cost can be saved by 60 percent, the external carbon source can be added by 100 percent, the denitrification is not limited by the C/N of the inlet water, and the method is suitable for the treatment of high ammonia nitrogen sewage.
3) The operation is flexible, compared with the activated sludge process, the sludge reflux and secondary sedimentation tank are not required, and compared with the fixed bed process, the back flushing is not required, so that the operation is simpler.
4) The impact resistance is strong, and the suspension carrier strengthens and enriches functional microorganisms, so that the system has stronger impact resistance.
Drawings
The invention is further described below with reference to the accompanying drawings:
FIG. 1 is a schematic diagram of an autotrophic nitrogen removal integrated system based on MBBR of the present invention;
in the figure: l1, a total water inlet pipeline; l2, a total water outlet pipeline; l3, a second reaction tank exhaust pipeline; p, an aeration device; m, a stirring device; s, intercepting a screen; q, the water channel air outlet hole.
Detailed Description
The invention provides an autotrophic nitrogen removal integrated system based on MBBR and a quick starting method, and in order to make the advantages and the technical scheme of the invention clearer and more definite, the invention is described in detail below with reference to specific embodiments.
First, related art terms related to the present invention are explained as follows:
1) PN/A: short-cut nitrification/anaerobic ammoxidation (partial nitritation/anammox PN/A), the short-cut nitrification process consumes 57% of the ammonia nitrogen to nitrous, and the anaerobic ammoxidation process combines the remaining 43% of the ammonia nitrogen with 57% of the nitrous to produce N 2 。
2) Short-cut nitrification: namely, ammonium radical (NH) in sewage 4 + -N) oxidation to Nitrite (NO) by AOB (nitrobacteria) 2 - -N) a process.
3) Anaerobic ammoxidation: under anaerobic/anoxic conditions, the reaction of Anammox bacteria (Anammox bacteria) with ammonium (NH) 4 + -N) is an electron donor, nitrite (NO 2 - -N) is an electron acceptor, yielding N 2 Is a process of (2).
4) CANON: the whole autotrophic nitrogen removal (Completely autotrophic nitrogen removal over nitrite, CANON) utilizes short-cut nitrification/anaerobic ammonia oxidation by nitrifying bacteria (AOB) and anaerobic ammonia oxidizing bacteria (Anammox) in the same reactor.
5) MBBR: moving bed biofilm reactor MBBR (Moving Bed Biofilm Reactor) the method increases biomass and biological species in the reactor by adding a certain amount of suspension carriers into the reactor, thereby increasing the treatment efficiency of the reactor;
6) Filling rate: the filling rate of the suspension carrier, namely the ratio of the volume of the suspension carrier to the cell capacity of a filling area, wherein the volume of the suspension carrier is the total volume under natural accumulation; such as 100m 3 Suspending carrier, filling to 400m 3 Pool volume, filling rate is 25%;
7) TN removes volumetric load: TN mass removed per unit volume of reaction tank per day, kgN/(m) 3 D) a step of; if the PN/A reaction tank TN is removed, the volume load= (PN/A reaction tank inflow TN-PN/A reaction tank outflow TN)/(PN/A reaction tank total Chi Rong PN/A reaction tank daily inflow.
8) Ammonia oxidation volumetric load: the total amount of oxidized ammonia nitrogen in the inflow water after aerobic conditions accounts for the ratio of the total amount of ammonia nitrogen in the inflow water,%; for example, the ammonia nitrogen oxidation rate of the first reaction tank= (ammonia nitrogen in water of the first reaction tank-ammonia nitrogen out of water of the first reaction tank)/(the daily water inflow of the first reaction tank Rong).
The stirring device, such as a submersible stirrer, disclosed by the invention can be realized by referring to the prior art in terms of specific structure and working mode.
The aeration device, such as an aeration pipe, is described in the present invention. The specific structure and the aeration mode can be realized by referring to the prior art.
As shown in fig. 1, the autotrophic nitrogen removal integrated system based on the MBBR comprises a reaction tank, a stirring device M, an aeration device P, a total water inlet pipeline L1, a total water outlet pipeline L2 and a second reaction tank exhaust pipeline L3, wherein the reaction tank comprises a reaction tank main body, a first reaction tank and a second reaction tank are arranged in the inner cavity of the reaction tank main body, the first reaction tank is arranged above, the second reaction tank is arranged below, the bottom surfaces and the bottom areas of the first reaction tank and the second reaction tank are the same, a separation plate is arranged between the first reaction tank and the second reaction tank, and separates the first reaction tank from the second reaction tank.
The pool wall of first reaction tank, the pool wall of second reaction tank and the outer wall of reaction tank main part remain certain distance respectively and are regarded as the water channel, and water channel upper portion is provided with water channel venthole Q, and the setting aim at of water channel is crossed: (1) The water in the first reaction tank flows out and is contained by the water channel, and then enters the second reaction tank from the bottom of the second reaction tank; (2) Because the effluent of the first reaction tank carries dissolved oxygen, the water channel also has the function of degassing, and the anaerobic or anoxic condition entering the second reaction tank is ensured.
The upper part of the first reaction tank and the upper part of the reaction tank main body are reserved with a certain distance to be used as a water outlet channel of the first reaction tank, and the lower part of the first reaction tank is provided with a water inlet of the first reaction tank; the lower part and the upper part of the second reaction tank are respectively provided with a water inlet of the second reaction tank and a water outlet of the second reaction tank.
And intercepting screens are respectively arranged at the water outlet channel of the first reaction tank, the water inlet of the second reaction tank and the water outlet of the second reaction tank, so that the loss of the filler is prevented.
The stirring device is a submersible stirrer positioned in the second reaction tank, and the aeration device is an aeration pipe positioned at the bottom of the first reaction tank and the bottom of the second reaction tank.
The water inlet of the first reaction tank is connected with a total water inlet pipeline penetrating through the water channel, the water outlet of the second reaction tank is connected with a total water outlet pipeline penetrating through the water channel, and the water outlet of the second reaction tank is also connected with a second reaction tank exhaust pipeline leading in the water channel, so that nitrogen generated by the second reaction tank is discharged to the water channel through the second reaction tank exhaust pipeline, thereby leading the first reaction tank flowing through the water channel to be deoxidized, and then gas is discharged through a water channel air outlet hole.
The quick start method of the system is further described below, and the start method sequentially includes the following steps:
a. starting preparation, namely adding a suspension carrier into the first reaction tank and the second reaction tank, wherein the filling rate is 20% -67%; the first reaction tank and the second reaction tank are respectively inoculated with common activated sludge, and the concentration of the sludge in the first reaction tank and the second reaction tank after inoculation is 3-5g/L;
b. nitrosation is started, water is continuously fed, an aeration device in a first reaction tank is started, a stirring device in a second reaction tank is started, and DO of the first reaction tank is controlled to be 2.0-3.0mg/L, and the aeration intensity is controlled>4m 3 /(m 2 H); controlling the rotating speed of the stirring device in the second reaction tank to be 20-30r/min, and running the stirring device to the sludge concentration in the first reaction tank and the second reaction tank<0.5g/L; continuously feeding water, and running until the ammoxidation volume in the first reaction tank is loaded>1.0kgN/(m 3 D), entering the next step;
c. anaerobic ammonia oxidation is started, mature anaerobic ammonia oxidation suspension carriers are inoculated into the second reaction tank, the inoculation rate is 3-5%, and water is continuously fed into the first reaction tank; the DO of the first reaction tank is controlled to be 1.0-2.5mg/L, and the aeration intensity is controlled>2.0m 3 /(m 2 H); the rotation speed of the stirring device is controlled to be 20-30r/min by the second reaction tank; operating until TN of the second reaction tank removes the volume load>1.0kgN/(m 3 D), entering the next step;
d. autotrophic denitrification stably runs, continuously feeds water, and controls DO (DO) at 2.0-3.0mg/L and aeration intensity in a first reaction tank>4m 3 /(m 2 H), controlling the rotating speed of the stirring device to be 30-45r/min by the second reaction tank, and discharging the effluent through a total water outlet pipeline; when the nitrous nitrogen/ammonia nitrogen in the effluent of the first reaction tank is less than or equal to 1.2, the DO of the first reaction tank is controlled to be 2.0-3.0mg/L, and the aeration degree is controlled>4m 3 /(m 2 H), opening the aeration device of the second reaction tank, controlling DO to be 0.5-1.0 mg/L and aeration intensity>2m 3 /(m 2 H), controlling the stirring device to rotateThe speed is 30-45r/min, and the effluent is discharged through a total water outlet pipeline.
Example 1:
some body device, ammonia nitrogen and COD of the inflow water are 400mg/L, 320mg/L and water volume is 300m respectively 3 And/d, adopting an autotrophic nitrogen removal integrated system based on MBBR, wherein the total volume of the device is 60m 3 Suspension carriers are added into the first reaction tank and the second reaction tank, and the filling rate is 45%; inoculating common activated sludge into the first reaction tank, wherein the sludge concentration in the first reaction tank and the second reaction tank after inoculation is 4g/L, enabling inflow water flow to flow from bottom to top, enabling sludge and suspended carriers in the first reaction tank at the upper part of the device and the second reaction tank at the lower part of the device to fluidize, and gradually losing the sludge in the first reaction tank and the second reaction tank by using a rapid sludge discharge method until the sludge concentration in the first reaction tank and the second reaction tank is 0.30g/L; controlling the DO of the first reaction tank to be 2-3mg/L and the aeration intensity to be 4.0m 3 /(m 2 H) running until the ammoxidation volume load in the first reaction tank is 1.14 kgN/(m) 3 D) inoculating mature anaerobic ammonia oxidation suspension carrier into a second reaction tank, wherein the inoculation rate is 5.0%, continuously feeding water into a first reaction tank, wherein DO is controlled at 1.0mg/L, and the aeration intensity is 2.2m 3 /(m 2 H), controlling the rotating speed of the stirring device to be 28r/min by the second reaction tank; the operation is carried out until TN removal volume load of the first reaction tank and the second reaction tank is 1.6 kgN/(m) 3 D) continuously feeding water into a first reaction tank, controlling the rotating speed of a stirring device to be 41r/min by a second reaction tank, controlling DO of the first reaction tank to be 2-3mg/L and the aeration intensity to be 4.0m 3 /(m 2 H), the concentration of ammonia nitrogen and COD in the second reaction tank of the integrated device is 30mg/L and 150mg/L respectively, and the ammonia nitrogen and COD are discharged through a total water outlet pipe.
Example 2:
a certain materialization device is characterized in that suspension carriers are added into the first reaction tank and the second reaction tank, and the filling rate is 50%; the first reaction tank is internally connected with common activated sludge, the sludge concentration in the first and second reaction tanks after inoculation is 3.0g/L, water flows from bottom to top, the first reaction tank at the upper part of the device and the second reaction tank at the lower part of the device are fluidized by aeration and suspended carriers, and the sludge in the first and second reaction tanks is gradually lost by a rapid sludge discharge method, so that the sludge is directly dischargedThe concentration of the sludge in the first reaction tank and the second reaction tank is 0.37g/L; the DO of the first reaction tank is controlled to be 2-3mg/L, and the aeration intensity is 4.8m 3 /(m 2 H) running until the ammoxidation volume load in the first reaction tank is 1.37 kgN/(m) 3 D) inoculating mature anaerobic ammonia oxidation suspension carrier into the second reaction tank, wherein the inoculation rate is 4.1%, continuously feeding water into the first reaction tank, and controlling the water feeding amount to be 12m 3 And/h, the DO of the first reaction tank is controlled to be 0.8-1.0mg/L, and the aeration intensity is 2.6m 3 /(m 2 H), controlling the rotating speed of the stirring device to be 29r/min by the second reaction tank; the operation is carried out until the TN removal volume load of the first reaction tank and the second reaction tank is 2.02 kgN/(m) 3 D) continuously feeding water into a first reaction tank, controlling the rotating speed of a stirring device to be 43r/min by a second reaction tank, controlling DO of the first reaction tank to be 2.7mg/L and the aeration intensity to be 5.3m 3 /(m 2 H), discharging the water discharged by the integrated device through a total water outlet pipeline.
The above-described non-enumerated portions can be obviously realized under the guidance of the above-described embodiments 1 and 2.
The parts not described in the above modes can be realized by adopting or referring to the prior art.
In the description of the present invention, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
The specific embodiments described herein are offered by way of illustration only, and are not intended to limit the scope of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (3)
1. The quick starting method of the autotrophic nitrogen removal integrated system based on the MBBR is characterized by comprising a reaction tank, a stirring device, an aeration device, a total water inlet pipeline, a total water outlet pipeline and an exhaust pipeline;
the reaction tank comprises a reaction tank main body, wherein the inner cavity of the reaction tank main body is divided into two reaction tanks by a horizontally arranged partition plate, the two reaction tanks are a first reaction tank and a second reaction tank respectively, the first reaction tank is positioned above, and the second reaction tank is positioned below;
the pool wall of the first reaction pool, the pool wall of the second reaction pool and the outer wall of the reaction pool main body respectively reserve certain distances to be used as a water channel, and a water channel air outlet hole is formed in the upper part of the water channel;
the upper part of the first reaction tank and the upper part of the reaction tank main body are reserved with a certain distance to be used as a first reaction tank water outlet channel, and the lower part of the first reaction tank is provided with a first reaction tank water inlet;
the lower part and the upper part of the second reaction tank are respectively provided with a second reaction tank water inlet and a second reaction tank water outlet;
the water inlet of the first reaction tank is connected with a total water inlet pipeline penetrating through the water channel, the water outlet of the second reaction tank is connected with a total water outlet pipeline penetrating through the water channel, and the water outlet of the second reaction tank is also connected with a second reaction tank exhaust pipeline leading into the water channel;
the quick start method sequentially comprises the following steps:
a. starting preparation, namely adding a suspension carrier into the first reaction tank and the second reaction tank, wherein the filling rate is 20% -67%; the first reaction tank and the second reaction tank are respectively inoculated with common activated sludge, and the concentration of the sludge in the first reaction tank and the second reaction tank after inoculation is 3-5g/L;
b. nitrosation is started, water is continuously fed, an aeration device in a first reaction tank is started, a stirring device in a second reaction tank is started, and DO of the first reaction tank is controlled to be 2.0-3.0mg/L, and the aeration intensity is controlled>4m 3 /(m 2 H); control of the firstThe rotation speed of the stirring device in the two reaction tanks is 20-30r/min, and the stirring device is operated to the sludge concentration in the first reaction tank and the second reaction tank<0.5g/L; continuously feeding water, and running until the ammoxidation volume in the first reaction tank is loaded>1.0kgN/(m 3 D), entering the next step;
c. anaerobic ammonia oxidation is started, mature anaerobic ammonia oxidation suspension carriers are inoculated into the second reaction tank, the inoculation rate is 3-5%, and water is continuously fed into the first reaction tank; the DO of the first reaction tank is controlled to be 1.0-2.5mg/L, and the aeration intensity is controlled>2.0m 3 /(m 2 H); the rotation speed of the stirring device is controlled to be 20-30r/min by the second reaction tank; operating until TN of the second reaction tank removes the volume load>1.0kgN/(m 3 D), entering the next step;
d. autotrophic denitrification stably runs, continuously feeds water, and controls DO (DO) at 2.0-3.0mg/L and aeration intensity in a first reaction tank>4m 3 /(m 2 H), controlling the rotating speed of the stirring device to be 30-45r/min by the second reaction tank, and discharging the effluent through a total water outlet pipeline; when the nitrous nitrogen/ammonia nitrogen in the effluent of the first reaction tank is less than or equal to 1.2, the DO of the first reaction tank is controlled to be 2.0-3.0mg/L, and the aeration degree is controlled>4m 3 /(m 2 H), opening the aeration device of the second reaction tank, controlling DO to be 0.5-1.0 mg/L and aeration intensity>2m 3 /(m 2 H), controlling the rotating speed of the stirring device to be 30-45r/min, and discharging the effluent through a total water outlet pipeline.
2. The method for quickly starting the autotrophic nitrogen removal integrated system based on the MBBR according to claim 1, wherein the method comprises the following steps: interception screens are respectively arranged at the water outlet channel of the first reaction tank, the water inlet of the second reaction tank and the water outlet of the second reaction tank.
3. The method for quickly starting the autotrophic nitrogen removal integrated system based on the MBBR according to claim 2, wherein the method comprises the following steps: the stirring device is a submersible stirrer positioned in the second reaction tank, and the aeration device is an aeration pipe positioned at the bottom of the first reaction tank and the bottom of the second reaction tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010065069.8A CN111115821B (en) | 2020-01-20 | 2020-01-20 | Autotrophic nitrogen removal integrated system based on MBBR and quick starting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010065069.8A CN111115821B (en) | 2020-01-20 | 2020-01-20 | Autotrophic nitrogen removal integrated system based on MBBR and quick starting method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111115821A CN111115821A (en) | 2020-05-08 |
| CN111115821B true CN111115821B (en) | 2023-08-25 |
Family
ID=70491613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010065069.8A Active CN111115821B (en) | 2020-01-20 | 2020-01-20 | Autotrophic nitrogen removal integrated system based on MBBR and quick starting method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111115821B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113307379B (en) * | 2021-02-24 | 2023-03-14 | 青岛理工大学 | High-salinity wastewater pure membrane MBBR starting method taking intertidal zone sediment as inoculation system |
| CN113735264B (en) * | 2021-09-23 | 2022-11-29 | 华南农业大学 | Quick starting method of autotrophic nitrogen removal process of biofilm reactor of sludge-membrane mixed moving bed |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101357806A (en) * | 2008-09-05 | 2009-02-04 | 华南理工大学 | Nitrification-anammox processing method and equipment of poultry-livestock culture waste waters |
| CN104787989A (en) * | 2015-04-27 | 2015-07-22 | 哈尔滨工业大学 | Deep-well aeration tank, enhanced wastewater nitrogen and phosphorus removal device and enhanced wastewater nitrogen and phosphorus removal method |
| WO2016046330A1 (en) * | 2014-09-24 | 2016-03-31 | Veolia Water Solutions & Technologies Support | Anammox process at waste water plant |
| CN107399811A (en) * | 2017-08-01 | 2017-11-28 | 中国矿业大学 | Integral two-part Anammox coupling denitrification removal of carbon and nitrogen device and its control operation method |
| CN108373203A (en) * | 2018-05-04 | 2018-08-07 | 山东格瑞博环保科技有限公司 | Autotrophic denitrification membrane bioreactor |
| CN109354172A (en) * | 2018-12-05 | 2019-02-19 | 青岛思普润水处理股份有限公司 | A kind of quick start method of the CANON system based on MBBR |
| CN211644779U (en) * | 2020-01-20 | 2020-10-09 | 青岛思普润水处理股份有限公司 | Autotrophic nitrogen removal integrated system based on MBBR |
-
2020
- 2020-01-20 CN CN202010065069.8A patent/CN111115821B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101357806A (en) * | 2008-09-05 | 2009-02-04 | 华南理工大学 | Nitrification-anammox processing method and equipment of poultry-livestock culture waste waters |
| WO2016046330A1 (en) * | 2014-09-24 | 2016-03-31 | Veolia Water Solutions & Technologies Support | Anammox process at waste water plant |
| CN104787989A (en) * | 2015-04-27 | 2015-07-22 | 哈尔滨工业大学 | Deep-well aeration tank, enhanced wastewater nitrogen and phosphorus removal device and enhanced wastewater nitrogen and phosphorus removal method |
| CN107399811A (en) * | 2017-08-01 | 2017-11-28 | 中国矿业大学 | Integral two-part Anammox coupling denitrification removal of carbon and nitrogen device and its control operation method |
| CN108373203A (en) * | 2018-05-04 | 2018-08-07 | 山东格瑞博环保科技有限公司 | Autotrophic denitrification membrane bioreactor |
| CN109354172A (en) * | 2018-12-05 | 2019-02-19 | 青岛思普润水处理股份有限公司 | A kind of quick start method of the CANON system based on MBBR |
| CN211644779U (en) * | 2020-01-20 | 2020-10-09 | 青岛思普润水处理股份有限公司 | Autotrophic nitrogen removal integrated system based on MBBR |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111115821A (en) | 2020-05-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102101720B (en) | Device and method for denitrification of single stage autotroph in low-cellulose nitrate (CN) high-ammonia nitrogen waste water | |
| CN108249559B (en) | Culture operation method of continuous flow aerobic granular sludge for treating domestic sewage at normal temperature | |
| CN103936229B (en) | A kind of municipal sewage improvement A2/ O intensified denitrification and dephosphorization processes device and technique | |
| CN111138024B (en) | Integrated vertical circulating reactor for nitrogen and phosphorus removal of sewage | |
| CN104909520A (en) | MABR-MBR combined type sewage treatment device and treatment method | |
| CN109250819B (en) | MBR sewage treatment system of degree of depth nitrogen and phosphorus removal | |
| CN110240273B (en) | Device for inducing short-cut nitrification and denitrification by alternate starvation culture and control method thereof | |
| CN107585974A (en) | A kind of sewage water treatment method based on MBBR techniques | |
| CN111115821B (en) | Autotrophic nitrogen removal integrated system based on MBBR and quick starting method | |
| CN105084637B (en) | A kind of baffling denitrification dephosphorization and COD degradation integrating device | |
| CN111646652A (en) | A high-efficient biological denitrification device for low carbon nitrogen ratio sewage | |
| CN110386731B (en) | Main stream autotrophic nitrogen removal system and method based on MBBR | |
| CN205328793U (en) | Formula sewage treatment plant is used to MABR and MBR antithetical couplet | |
| CN210620529U (en) | Mainstream autotrophic nitrogen removal transformation system based on MBBR | |
| CN211644779U (en) | Autotrophic nitrogen removal integrated system based on MBBR | |
| CN110386732B (en) | Mainstream autotrophic nitrogen removal transformation system and transformation method based on MBBR | |
| CN111115822B (en) | PN/A integrated autotrophic nitrogen removal system based on MBBR and quick starting method | |
| CN218811069U (en) | Sewage treatment system of SBR is reinforceed to biomembrane carrier | |
| CN211644776U (en) | PN/A integrated autotrophic nitrogen removal system based on MBBR | |
| CN207313242U (en) | A kind of split reflux declines oxygen denitrification reactor | |
| CN106830323B (en) | Continuous flow high-efficiency denitrification reactor | |
| CN205258129U (en) | Low discharge sewage degree of depth nitrogen and phosphorus removal device | |
| CN215049050U (en) | Biological treatment unit efficiency strengthening deep emission reduction device for municipal sewage treatment plant | |
| CN205874013U (en) | Short -cut nitrification denitrification dephosphorization coupling device | |
| CN209468184U (en) | Strengthened denitrification system based on CANON_MBBR |
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 |