A treatment method for treating high-ammonia-nitrogen wastewater by anaerobic ammonia oxidation

Abstract

The application discloses an anaerobic ammonia oxidation treatment method for high-ammonia-nitrogen wastewater and belongs to the technical field of wastewater purification, and is used for solving the technical problems that in the prior art, anaerobic ammonia oxidation bacteria have a long cultivation time, anaerobic ammonia oxidation sludge cannot be self-repaired when treating wastewater, anaerobic ammonia oxidation bacteria in active sludge are prone to adhering to fillers when biodegrading wastewater with high ammonia-nitrogen content, the concentration of anaerobic ammonia oxidation bacteria is reduced, and long-acting removal effect of ammonia-nitrogen in wastewater is poor, the application is characterized in that after the combination of active sludge is optimized, the wastewater reactor is matched, ammonia-nitrogen impurities in wastewater can be effectively removed, the activity of active sludge can be maintained, and long-acting anaerobic ammonia oxidation treatment effect on high-ammonia-nitrogen wastewater is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of wastewater purification, in particular to a treatment method for treating high ammonia-nitrogen wastewater by anaerobic ammonia oxidation. BACKGROUND

[0002] Ammonia-nitrogen refers to chemical nitrogen in the form of free ammonia (NH3) and ammonium ion (NH4 + ) existing in water, ammonia-nitrogen is one of nutrients in water, but too high ammonia-nitrogen content will lead to water eutrophication, affecting water quality and ecological environment, in addition, ammonia-nitrogen in water can also be converted into nitrite under certain conditions, long-term drinking of water containing nitrite will have adverse effects on human health.

[0003] With the acceleration of industrialization and the improvement of urbanization level, the problem of high ammonia-nitrogen wastewater discharge is becoming increasingly serious, such wastewater mainly comes from agriculture, chemical industry, pharmaceutical industry, food processing and other industries, and its high ammonia-nitrogen content not only causes serious pollution to the environment, but also increases the difficulty and cost of wastewater treatment.

[0004] Anaerobic ammonia oxidation is a technology for oxidizing ammonia-nitrogen into nitrite or nitrogen gas by using anaerobic ammonia oxidation sludge containing anaerobic bacteria, which has the advantages of complete removal of ammonia-nitrogen, high treatment efficiency and low energy consumption, anaerobic ammonia oxidation bacteria in anaerobic ammonia oxidation sludge will gradually age with the increase of running time, which will reduce the activity and affect the ammonia-nitrogen oxidation and degradation treatment effect, and in order to ensure that the activated sludge and wastewater are fully mixed, the bottom aeration is needed to promote the mixing of activated sludge and wastewater during biological oxidation and degradation of wastewater, but aeration will increase the oxygen concentration in wastewater, and the increase of dissolved oxygen concentration in wastewater will inhibit the growth and activity of anaerobic ammonia oxidation bacteria, and the reproduction time of anaerobic ammonia oxidation bacteria is relatively long, so the anaerobic ammonia oxidation sludge cannot be self-reproduced and repaired during wastewater treatment, which requires frequent supplement or replacement of activated sludge, especially for high ammonia-nitrogen content wastewater, a large amount of degradation products will be produced during biological degradation, which will be mixed and attached to the filler by the product coating of activated sludge, resulting in a sharp decrease of anaerobic ammonia oxidation bacteria content in activated sludge, and the ammonia-nitrogen removal effect in wastewater is rapidly weakened, and the ammonia-nitrogen removal rate in high ammonia-nitrogen wastewater needs to be further improved.

[0005] In view of the technical defects, a solution is proposed. SUMMARY

[0006] The application aims to provide an anaerobic ammonia oxidation treatment method for high ammonia-nitrogen wastewater, and aims to solve the technical problem in the prior art that the cultivation time of anaerobic ammonia oxidation bacteria is long, the anaerobic ammonia oxidation sludge cannot be self-repaired when treating wastewater, and a large amount of degradation products will be produced when biodegrading wastewater with high ammonia-nitrogen content, which will be mixed and attached to the filler to reduce the content of anaerobic ammonia oxidation bacteria in the active sludge, and thus the long-term removal effect of ammonia-nitrogen in the wastewater is poor.

[0007] The purpose of the application can be achieved by the following technical scheme: an anaerobic ammonia oxidation treatment method for high ammonia-nitrogen wastewater, comprising the following steps:

[0008] S1, placing the active sludge into the inside of the storage bin one and the storage bin two of the wastewater reactor;

[0009] S2, conveying the high ammonia-nitrogen wastewater from the water inlet pipe to the inside of the tank body of the wastewater reactor, and the wastewater flows upward in sequence through the adapter ring to fill the tank body, the brake motor drives the vertical shaft to rotate clockwise, drives the plurality of baffle plates on the storage bin one to rotate by 90 degrees, and makes the horizontal section of the uniform distribution plate located at the top of the storage bin one;

[0010] S3, connecting the nitrogen pipe with the plurality of gas pipes, conveying the nitrogen into the inside of the storage bin one after entering the gas chamber, and aerating for 30-60s to uniformly mix the active sludge, the filler and the wastewater, and standing for 8-10h;

[0011] S4, introducing the high ammonia-nitrogen wastewater into the tank body, making the wastewater in the tank body flow out from the overflow pipe, and detecting the ammonia-nitrogen content of the wastewater overflowing from the overflow pipe;

[0012] S5, after continuous work for 24-30h, the brake motor drives the vertical shaft to rotate counterclockwise, drives the plurality of baffle plates on the storage bin two to rotate by 90 degrees, the plurality of baffle plates on the storage bin one are turned over and folded, and makes the horizontal section of the uniform distribution plate located at the top of the storage bin two, and at the same time of rotating, the plurality of fixed rods one and the plurality of fixed rods two installed on the top of the uniform distribution plate move relatively to clean the polypropylene filler;

[0013] S6, after continuous work for 72-90h, opening the valves of the blowdown pipes from top to bottom in sequence, and discharging the sludge on the uniform distribution plate.

[0014] Further, the active sludge is composed of nitrifying sludge and anaerobic ammonia oxidation sludge at a weight ratio of 1:4.

[0015] Further, the wastewater reactor comprises a tank body, one side bottom of the tank body is provided with a water inlet pipe, a top of the tank body is provided with an exhaust port, one side top of the tank body is provided with an overflow pipe, a plurality of horizontally arranged material containing plates are fixedly installed in the tank body, a plurality of connecting rings corresponding to the material containing plates are installed outside the tank body, a plurality of holes communicating with the connecting rings are formed in the tank body, and the plurality of holes are respectively located at the top and bottom of the material containing plates, a material containing cavity coaxially arranged with the material containing plate is arranged at the top of the material containing plate, a partition plate for dividing the groove into storage bin one and storage bin two is fixedly installed in the inner side of the material containing cavity, a material blocking assembly is installed at the top of the storage bin one and the storage bin two, and a uniform distribution plate is rotatably installed at the top of the plurality of material containing plates.

[0016] Further, two air chambers corresponding to the storage bin one and the storage bin two are formed in the inner wall of the bottom of the material containing plate, and an air pipe communicating with the plurality of air chambers is installed on the tank body.

[0017] Further, the material blocking assembly comprises a plurality of material blocking plates, the material blocking plates are vertically arranged and rotatably connected with the partition plate, the adjacent two material blocking plates are overlapped front to back, an installation cavity is arranged in the inner side of the partition plate, two annular chain belts are installed in the installation cavity, a plurality of sprockets are installed in the inner side of the two chain belts, the sprockets correspond to the plurality of material blocking plates, and the filling assembly further comprises a driving mechanism for driving the two chain belts to rotate.

[0018] Further, the driving mechanism comprises a vertical shaft rotatably installed at the center of the bottom of the tank body, the vertical shaft extends to the top of the material containing plate through the installation cavities, the plurality of uniform distribution plates are fixedly sleeved on the outer side of the vertical shaft, a bevel gear one is fixedly sleeved on the outer side of the section of the vertical shaft located in the installation cavity, two bevel gear twos meshing with the bevel gear one are installed on the outer side of the bevel gear one, the two bevel gear twos are in transmission connection with the outer wall of one of the sprockets of the two chain belts through a ratchet respectively, and the driving mechanism further comprises a brake motor installed at the bottom of the tank body for driving the vertical shaft to rotate.

[0019] Further, the uniform distribution plate comprises a horizontal section and an inclined section, a plurality of parallely arranged trapezoidal grooves are formed in the horizontal section, the tips of the trapezoidal grooves are arranged downward, a plurality of tapered holes are formed in the inclined section, the tips of the tapered holes are arranged upward, and a blowdown pipe corresponding to the plurality of uniform distribution plates is installed on the outer side of the tank body.

[0020] Further, the filler assembly comprises a hole plate horizontally arranged on the top of the uniform distribution plate, a plurality of first fixing rods are rotatably arranged on the top of the uniform distribution plate, a plurality of second fixing rods are fixedly arranged on the bottom of the hole plate, the first fixing rods and the second fixing rods are vertically arranged, and polypropylene fillers are arranged on the first fixing rods and the second fixing rods.

[0021] The present application has the following advantages:

[0022] 1. The anaerobic ammonia oxidation treatment method for high ammonia nitrogen wastewater in the present application realizes the zoned treatment of the high ammonia nitrogen wastewater by optimizing the composition structure of the wastewater reactor and the composition of the activated sludge, ensures the sufficient contact between the activated sludge and the high ammonia nitrogen wastewater, reduces the ammonia nitrogen content in the wastewater, and maintains the good anaerobic ammonia oxidation activity of the activated sludge by separately storing the activated sludge, allowing one group of activated sludge to perform the anaerobic ammonia oxidation on the wastewater and another group of activated sludge to perform self-reproduction and repair, so that the activated sludge always maintains good anaerobic ammonia oxidation activity, and the long-term stability of the anaerobic ammonia oxidation activity of the activated sludge can be maintained by optimizing the composition of the activated sludge, thereby achieving the long-term ammonia nitrogen degradation effect.

[0023] 2. The anaerobic ammonia oxidation treatment method for high ammonia nitrogen wastewater in the present application divides the tank body into a plurality of relatively independent anaerobic ammonia oxidation treatment zones by a plurality of material containing plates, the influence between the plurality of anaerobic ammonia oxidation treatment zones is small, thereby realizing the zoned treatment of the high ammonia nitrogen wastewater, and the combination of the polypropylene fillers and the aeration avoids the problems of the fast settling of the activated sludge and the poor oxidation and degradation effect of the activated sludge on the ammonia nitrogen in the wastewater caused by the integrated structure of the traditional integrated reactor, thereby achieving the effect of rapidly reducing the ammonia nitrogen content in the wastewater.

[0024] 3. The anaerobic ammonia oxidation treatment method for high ammonia nitrogen wastewater in the present application can transport the activated sludge stored in the storage bin one or the storage bin two upward for aeration by the cooperation of the uniform distribution plate, the first fixing rods, the second fixing rods and the polypropylene fillers, avoids the single upward floating of the sludge along the vertical direction, causes the uneven distribution of the activated sludge in the wastewater, and by optimizing the structure of the uniform distribution plate, the sinking sludge can also be guided to the horizontal section along the inclined surface thereof for collection, which facilitates the sludge discharge treatment, the trapezoidal groove arranged on the horizontal section guides the sludge to the storage bin for automatic accumulation and storage, the storage bin cooperates with the material blocking plate to form a relatively closed chamber, the exhaust gas plays the effect of airtight isolation, promotes the free reproduction and repair of the activated sludge in the anaerobic environment, provides the self-repair time for the activated sludge, and makes the activated sludge always maintain good anaerobic ammonia oxidation activity, thereby improving the ammonia nitrogen removal effect in the wastewater. BRIEF DESCRIPTION OF DRAWINGS

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a three-dimensional structural diagram of the wastewater reactor in this invention;

[0027] Figure 2 This is a frontal cross-sectional view of the wastewater reactor in this invention;

[0028] Figure 3 This is a schematic diagram of the material holding plate and the uniform distribution plate in this invention;

[0029] Figure 4 This is a schematic diagram of the uniformly distributed plate in this invention;

[0030] Figure 5 This is a schematic diagram of the unfolded structure of the material holding plate in this invention;

[0031] Figure 6 For the present invention Figure 5 Enlarged structural diagram at point A in the middle;

[0032] Figure 7 This is a schematic diagram of the sprocket, bevel gear one, and bevel gear two in this invention.

[0033] In the diagram: 100, Tank body; 101, Water inlet pipe; 102, Exhaust port; 103, Overflow pipe; 104, Connecting ring; 105, Sewage pipe; 106, Air pipe; 200, Material holding plate; 201, Divider plate; 202, Storage bin one; 203, Storage bin two; 204, Baffle plate; 205, Sprocket; 206, Chain; 207, Vertical shaft; 208, Helical gear one; 209, Helical gear two; 210, Brake motor; 300, Distributor plate; 3001, Horizontal section; 3002, Inclined section; 3003, Trapezoidal groove; 3004, Conical hole; 301, Orifice plate; 302, Fixing rod one; 303, Fixing rod two; 304, Polypropylene packing. Detailed Implementation

[0034] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] The nitrified sludge in the application is selected from Kunze Water Treatment Co., Ltd. in Henan;

[0036] The anaerobic ammonia oxidation sludge is in granular form and is model LXHJ70, which is selected from Shandong Luxing Environmental Protection Technology Co., Ltd.

[0037] Embodiment 1: please refer to Figure 1 、 Figure 2 、 Figure 6 and Figure 7 The wastewater reactor for treating high-ammonia-nitrogen wastewater by anaerobic ammonia oxidation in the embodiment comprises a tank body 100, a water inlet pipe 101 is mounted on one side of the bottom of the tank body 100, an exhaust port 102 is arranged at the top of the tank body 100, an overflow pipe 103 is mounted on one side of the top of the tank body 100, a plurality of horizontally arranged material containing plates 200 are fixedly installed in the tank body 100, a plurality of link rings 104 corresponding to the plurality of material containing plates 200 are installed on the outside of the tank body 100, a plurality of holes communicating with the link rings 104 are formed in the tank body 100, and the plurality of holes are respectively located at the top and the bottom of the material containing plates 200.

[0038] The plurality of material containing plates 200 divide the tank body 100 into a plurality of relatively independent anaerobic ammonia oxidation treatment zones. When the high-ammonia-nitrogen wastewater enters the inside of the tank body 100 for anaerobic ammonia oxidation treatment, the wastewater enters the inside of the link ring 104 through the hole communicating with the link ring 104, is transported upward from the hole, and is transported from bottom to top, so that the high-ammonia-nitrogen wastewater is treated by gradient.

[0039] The top of the material containing plate 200 is provided with a material containing chamber coaxially arranged therewith, a partition plate 201 dividing the groove into a storage bin one 202 and a storage bin two 203 is fixedly installed on the inside of the material containing chamber, a plurality of material blocking plates 204 are installed on the top of the storage bin one 202 and the storage bin two 203, the material blocking plates 204 are vertically arranged with the partition plate 201 and are rotationally connected with the inner wall of the storage bin, a coil spring is installed on the end of the material blocking plate 204 away from the partition plate 201, so that the material blocking plate 204 generates force accumulation after being turned over, the automatic closing of the plurality of material blocking plates 204 is realized, the two adjacent material blocking plates 204 are overlapped front to back, a relatively closed activated sludge storage chamber is formed on the top of the storage bin, and the relatively closed activated sludge storage chamber is formed.

[0040] The inside of the partition plate 201 is provided with a mounting cavity, two annular chain belts 206 are installed on the inside of the mounting cavity, a plurality of sprockets 205 are installed on the inside of the two chain belts 206, the plurality of sprockets 205 are correspondingly arranged with the plurality of material blocking plates 204, so that the sprockets 205 drive the material blocking plates 204 to rotate synchronously while rotating, and the plurality of sprockets 205 between the two chain belts 206 are engaged with the chain grooves on the chain belts 206, so that one of the sprockets 205 drives the other sprockets 205 to rotate synchronously while rotating.

[0041] A vertical shaft 207 is rotatably installed at the center of the bottom of the tank body 100, the top of the vertical shaft 207 penetrates through a plurality of installation cavities and extends to the top of the material holding plate 200, a plurality of uniform distribution plates 300 are fixedly sleeved outside the vertical shaft 207, a bevel gear one 208 is fixedly sleeved outside a section of the vertical shaft 207 inside the installation cavity, two bevel gears two 209 are installed outside the bevel gear one 208 and meshed with the bevel gear one 208, the two bevel gears two 209 are respectively in transmission connection with the outer wall of one sprocket 205 of the two chains 206 through a ratchet, and the drive mechanism further includes a brake motor 210 installed at the bottom of the tank body 100 for driving the vertical shaft 207 to rotate.

[0042] The self-locking function of the brake motor 210 after stopping rotation is used to prevent the vertical shaft 207 from rotating, the rotation directions of the two ratchets are opposite, the two bevel gears one 208 are driven to rotate synchronously when the bevel gears two 209 rotate, but due to the influence of the one-way transmission of the ratchet, only one side of the sprocket 205 can be driven to rotate, so that when the brake motor 210 drives the vertical shaft 207 to rotate, only one set of the material blocking plates 204 on the storage bin one 202 or the storage bin two 203 can be deflected and stored, and when the brake motor 210 drives the vertical shaft 207 to rotate reversely, the set of material blocking plates 204 is closed under the action of the coil spring, and the other set of material blocking plates 204 is opened.

[0043] The storage bin one 202 and the storage bin two 203 are used as storage chambers of activated sludge, and the two sets of activated sludge are used alternately to promote the self-repair and reproduction of active bacteria in the activated sludge and improve the activity of the activated sludge and the service life of the activated sludge.

[0044] Embodiment 2: please refer to Figures 1-5 The wastewater reactor for treating high-ammonia-nitrogen wastewater by anaerobic ammonia oxidation in the embodiment is provided with a plurality of uniform distribution plates 300 rotatably installed at the top of a plurality of material holding plates 200, the uniform distribution plate 300 comprises a horizontal section 3001 and an inclined section 3002, a plurality of trapezoidal grooves 3003 are formed in the horizontal section 3001 and arranged in parallel, the tip of the trapezoidal groove 3003 is arranged downward, a plurality of tapered holes 3004 are formed in the inclined section 3002, and the tip of the tapered hole 3004 is arranged upward, two gas chambers corresponding to the storage bin one 202 and the storage bin two 203 are formed in the inner wall of the bottom of the material holding plate 200, the gas chamber and the storage bin one 202 or the storage bin two 203 are connected through a gas outlet one-way pipe, and the tank body 100 is provided with a gas pipe 106 connected with a plurality of gas chambers.

[0045] The gas pipe 106 is connected with the nitrogen pipe at one end outside the tank body 100, high-pressure nitrogen gas enters the inside of the gas chamber through the gas pipe 106, and is then transported to the inside of the storage bin one 202 or the storage bin two 203 through the gas outlet one-way pipe, so as to aerate the activated sludge stored in the storage bin one 202 or the storage bin two 203, promote the uniform mixing of the activated sludge and the wastewater, and promote the uniform distribution and flow of the activated sludge from bottom to top during aeration through the inclined section 3002 arranged on the uniform distribution plate 300. By changing the opening of the narrow end of the trapezoidal groove 3003 and the tapered hole 3004, the settled sludge can fall into the opened storage bin one 202 or the storage bin two 203 of the baffle plate 204.

[0046] A plurality of blowdown pipes 105 corresponding to the plurality of uniform distribution plates 300 are arranged outside the tank body 100, the bottom of the blowdown pipe 105 is flush with the top of the horizontal section of the uniform distribution plate 300, and a valve is arranged on the blowdown pipe 105. When the valve is opened, the sludge flows with the wastewater and is discharged outside the tank body 100, so as to realize automatic sludge blowdown treatment.

[0047] Embodiment 3: please refer to Figure 2 The wastewater reactor for treating high-ammonia-nitrogen wastewater by anaerobic ammonia oxidation in the embodiment has a horizontally arranged hole plate 301 fixed on the top of the uniform distribution plate 300, a plurality of fixed rods one 302 are rotatably arranged on the top of the uniform distribution plate 300, a plurality of fixed rods two 303 are fixedly arranged on the bottom of the hole plate 301, the fixed rods one 302 and the fixed rods two 303 are vertically arranged, and polypropylene fillers 304 are arranged on the fixed rods one 302 and the fixed rods two 303, and the uniform distribution plate 300 is fixedly sleeved outside the vertical shaft 207.

[0048] The rotation of the vertical shaft 207 drives the uniform distribution plate 300 to rotate synchronously, so that the plurality of fixed rods one 302 on the uniform distribution plate 300 rotate simultaneously, the fixed rods one 302 and the fixed rods two 303 produce relative deflection, the polypropylene fillers 304 on the fixed rods one 302 and the fixed rods two 303 produce relative movement, the friction force generated by the relative movement of the polypropylene fillers 304 is used to clean the activated sludge adhered to the polypropylene fillers 304, and a large amount of sludge is prevented from adhering to the polypropylene fillers 304.

[0049] Embodiment 4: please refer to Figures 1-7 The method for treating high-ammonia-nitrogen wastewater by anaerobic ammonia oxidation in the embodiment includes the following steps.

[0050] S1, uniformly mixing nitrified sludge and anaerobic ammonia oxidation sludge at a weight ratio of 1:4 to obtain activated sludge, and placing the activated sludge in the inside of the storage bin one 202 and the storage bin two 203 of the wastewater reactor;

[0051] S2, the high ammonia nitrogen wastewater is transported from the water inlet pipe 101 to the inside of the tank body 100 of the wastewater reactor, the wastewater flows upwards in turn through the adapter ring 104, the tank body 100 is filled, the brake motor 210 drives the vertical shaft 207 to rotate clockwise, drives a plurality of material baffle plates 204 on the storage bin one 202 to rotate 90°, and makes the horizontal section 3001 of the uniform distribution plate 300 located at the top of the storage bin one 202;

[0052] S3, the nitrogen pipe is communicated with a plurality of gas pipes 106, the nitrogen pressure is 2.5MPa, the nitrogen enters the gas chamber and is transported to the inside of the storage bin one 202, and the active sludge, the polypropylene filler 304 and the wastewater are uniformly mixed, the valve on the nitrogen pipe is closed, and the treatment is placed for 8h;

[0053] S4, the high ammonia nitrogen wastewater is introduced into the tank body 100, so that the wastewater in the tank body 100 flows out from the overflow pipe 103, and the ammonia nitrogen content of the wastewater overflowing from the overflow pipe 103 is detected;

[0054] S5, after 24h of continuous work, the brake motor 210 drives the vertical shaft 207 to rotate counterclockwise, drives a plurality of material baffle plates 204 on the storage bin two 203 to rotate 90°, a plurality of material baffle plates 204 on the storage bin one 202 are reversely turned over and folded under the action of the coil spring, so that the storage bin one 202 forms a relatively closed cavity, at this time, the horizontal section 3001 of the uniform distribution plate 300 is located at the top of the storage bin two 203, and a plurality of fixed rods one 302 and a plurality of fixed rods two 303 installed on the top of the uniform distribution plate 300 move relatively during rotation, so as to clean the polypropylene filler 304;

[0055] S6, after 72h of continuous work, the valves of the blowdown pipes 105 are opened from top to bottom in turn, so that the sludge on the uniform distribution plate 300 is discharged.

[0056] Embodiment 5: please refer to Figures 1-7 The method for treating high ammonia nitrogen wastewater by anaerobic ammonia oxidation in the embodiment comprises the following steps:

[0057] S1, the nitrifying sludge and the anaerobic ammonia oxidation sludge are mixed uniformly according to the weight ratio of 1:4 to obtain active sludge, and the active sludge is placed into the inside of the storage bin one 202 and the storage bin two 203 of the wastewater reactor;

[0058] S2, the high ammonia nitrogen wastewater is transported from the water inlet pipe 101 to the inside of the tank body 100 of the wastewater reactor, the wastewater flows upwards in turn through the adapter ring 104, the tank body 100 is filled, the brake motor 210 drives the vertical shaft 207 to rotate clockwise, drives a plurality of material baffle plates 204 on the storage bin one 202 to rotate 90°, and makes the horizontal section 3001 of the uniform distribution plate 300 located at the top of the storage bin one 202;

[0059] S3, the nitrogen pipe is communicated with a plurality of air pipes 106, the nitrogen pressure is 3.0MPa, nitrogen enters the air chamber and is transported to the inside of the storage bin one 202, aeration is 45s, the activated sludge, polypropylene filler 304 and wastewater are uniformly mixed, the valve on the nitrogen pipe is closed, and the treatment is stationary for 9h;

[0060] S4, high ammonia nitrogen wastewater is introduced into the tank body 100, so that the wastewater in the tank body 100 flows out from the overflow pipe 103, and the ammonia nitrogen content of the wastewater overflowing from the overflow pipe 103 is detected;

[0061] S5, after 27h of continuous work, the brake motor 210 drives the vertical shaft 207 to rotate counterclockwise, drives a plurality of material blocking plates 204 on the storage bin two 203 to rotate 90°, a plurality of material blocking plates 204 on the storage bin one 202 are reversely turned and folded under the action of the coil spring, so that the storage bin one 202 forms a relatively closed chamber, the horizontal section 3001 of the uniform distribution plate 300 at this time is located at the top of the storage bin two 203, and a plurality of fixed rods one 302 and a plurality of fixed rods two 303 installed on the top of the uniform distribution plate 300 move relatively during rotation, and the polypropylene filler 304 is self-cleaned;

[0062] S6, after 81h of continuous work, the valves of the blowdown pipe 105 are opened from top to bottom in turn, so that the sludge on the uniform distribution plate 300 is discharged.

[0063] Example 6: please refer to Figures 1-7 The method for treating high ammonia nitrogen wastewater by anaerobic ammonia oxidation in the embodiment comprises the following steps:

[0064] S1, the nitrifying sludge and the anaerobic ammonia oxidation sludge are uniformly mixed according to a weight ratio of 1:4 to obtain activated sludge, and the activated sludge is placed in the inside of the storage bin one 202 and the storage bin two 203 of the wastewater reactor;

[0065] S2, the high ammonia nitrogen wastewater is transported from the water inlet pipe 101 to the inside of the tank body 100 of the wastewater reactor, the wastewater sequentially overflows upwards through the adapter ring 104, the tank body 100 is filled, the brake motor 210 drives the vertical shaft 207 to rotate clockwise, drives a plurality of material blocking plates 204 on the storage bin one 202 to rotate 90°, and the horizontal section 3001 of the uniform distribution plate 300 is located at the top of the storage bin one 202;

[0066] S3, the nitrogen pipe is communicated with a plurality of air pipes 106, the nitrogen pressure is 3.5MPa, nitrogen enters the air chamber and is transported to the inside of the storage bin one 202, aeration is 60s, the activated sludge, polypropylene filler 304 and wastewater are uniformly mixed, the valve on the nitrogen pipe is closed, and the treatment is stationary for 10h;

[0067] S4, high ammonia-nitrogen wastewater is introduced into the tank body 100, so that the wastewater in the tank body 100 flows out from the overflow pipe 103, and the ammonia-nitrogen content of the wastewater overflowing from the overflow pipe 103 is detected;

[0068] S5, after 30 hours of continuous operation, the brake motor 210 drives the vertical shaft 207 to rotate counterclockwise, and drives the plurality of material blocking plates 204 on the storage bin two 203 to rotate 90°, and the plurality of material blocking plates 204 on the storage bin one 202 are reversely flipped and folded under the action of the coil spring, so that the storage bin one 202 forms a relatively closed chamber, and the horizontal section 3001 of the uniform distribution plate 300 at this time is located at the top of the storage bin two 203, and at the same time of rotating, a plurality of fixed rods one 302 and a plurality of fixed rods two 303 installed at the top of the uniform distribution plate 300 move relatively, and the polypropylene filler 304 is self-cleaned;

[0069] S6, after 90 hours of continuous operation, the valves of the blowdown pipe 105 are opened from top to bottom in turn, so that the sludge on the uniform distribution plate 300 is discharged.

[0070] Comparative Example 1

[0071] The difference between this comparative example and Example 6 is that the activated sludge is anaerobic ammonia oxidation sludge.

[0072] Comparative Example 2

[0073] The difference between this comparative example and Example 6 is that the activated sludge is composed of nitrifying sludge and anaerobic ammonia oxidation sludge in a weight ratio of 1:3.

[0074] Comparative Example 3

[0075] The difference between this comparative example and Example 6 is that the activated sludge is composed of nitrifying sludge and anaerobic ammonia oxidation sludge in a weight ratio of 1:1.

[0076] Performance test:

[0077] Examples 4-6 and Comparative Examples 1-3, the ammonia-nitrogen content in the high ammonia-nitrogen wastewater in step S2 and the wastewater overflowing in step S4 is tested at the beginning of operation and after 3 months of operation, and the ammonia-nitrogen removal rate in the wastewater is determined according to the formula W0 is the ammonia-nitrogen content in the high ammonia-nitrogen wastewater in step S2, and W1 is the ammonia-nitrogen content in the wastewater overflowing in step S4, and the specific test results are shown in Table 1 below:

[0078] Table 1-Data table of ammonia-nitrogen content detection

[0079]

[0080] Data analysis:

[0081] Comparative analysis is conducted on the data in Table 1, the high ammonia-nitrogen wastewater treatment method provided by the application can perform anaerobic ammonia oxidation treatment on the high ammonia-nitrogen wastewater, the ammonia-nitrogen removal rate of the wastewater reaches 96.41%, and after 3 months of operation, the ammonia-nitrogen removal rate of the wastewater reaches 94.00%, and the performance test data are all better than those of the comparative examples, which shows that the application is through the optimization of the combination of activated sludge and the wastewater reactor, which can not only effectively remove the ammonia-nitrogen impurities in the wastewater, but also maintain the activity of the activated sludge, and achieve the long-acting anaerobic ammonia oxidation treatment effect on the high ammonia-nitrogen wastewater.

[0082] The above is only an example and description of the structure of the application, and those skilled in the art can make various modifications or supplements or use similar ways to replace the described specific embodiments, as long as they do not deviate from the structure of the application or exceed the scope defined by the claims, which shall belong to the protection scope of the application.

[0083] In the description of the present specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are contained in at least one embodiment or example of the application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0084] The preferred embodiments of the application disclosed above are only used to help explain the application. The preferred embodiments do not describe all the details and limit the application to the specific embodiments. Obviously, many modifications and changes can be made according to the content of the present specification. The present specification selects and describes these embodiments in order to better explain the principles and practical applications of the application, so that those skilled in the art can well understand and utilize the application. The application is limited by the claims and their entire scope and equivalents.

Claims

1. A treatment method of an anaerobic ammonia oxidation treatment of high ammonia nitrogen wastewater, characterized by, It comprises the following steps: S1, placing the activated sludge into the inside of the storage bin one (202) and the storage bin two (203) of the wastewater reactor; S2, sending the high ammonia-nitrogen wastewater from the water inlet pipe (101) to the inside of the tank body (100) of the wastewater reactor, and the wastewater flows upward in turn through the adapter ring (104) to fill the tank body (100), the brake motor (210) drives the vertical shaft (207) to rotate clockwise, drives the multiple baffle plates (204) on the storage bin one (202) to rotate 90°, and makes the horizontal section (3001) of the uniform distribution plate (300) located at the top of the storage bin one (202); S3, connecting the nitrogen pipe with the multiple gas pipes (106), and sending the nitrogen into the gas chamber and then to the inside of the storage bin one (202) to aerate for 30-60s, and uniformly mixing the activated sludge, the filler and the wastewater, and standing for 8-10h; S4, sending the high ammonia-nitrogen wastewater into the tank body (100) to make the wastewater in the tank body (100) flow out from the overflow pipe (103), and detecting the ammonia-nitrogen content of the wastewater overflowing from the overflow pipe (103); S5, after continuously working for 24-30h, the brake motor (210) drives the vertical shaft (207) to rotate counterclockwise, drives the multiple baffle plates (204) on the storage bin two (203) to rotate 90°, the multiple baffle plates (204) on the storage bin one (202) are turned over and closed, and makes the horizontal section (3001) of the uniform distribution plate (300) located at the top of the storage bin two (203), and in the rotating process, the multiple fixed rods one (302) and the multiple fixed rods two (303) on the top of the uniform distribution plate (300) move relatively to clean the polypropylene filler (304); S6, after continuously working for 72-90h, opening the valves of the blowdown pipes (105) from top to bottom in turn to make the sludge on the uniform distribution plate (300) be discharged; The storage bin one (202) and the storage bin two (203) are the storage chambers of the activated sludge, and the top of each of them is installed with multiple baffle plates (204), one group of the baffle plates (204) is closed, and the other group of the baffle plates (204) is opened, the two groups of the activated sludge are used alternately to promote the self-repair and reproduction of the active bacteria in the activated sludge, and improve the activity of the activated sludge and the service life of the activated sludge.

2. The method according to claim 1, wherein the method is characterized by, The activated sludge is composed of the nitrifying sludge and the anaerobic ammonia oxidation sludge in a weight ratio of 1:

4.

3. The method according to claim 1, wherein the method is characterized by, The wastewater reactor comprises a tank body (100), a water inlet pipe (101) is mounted at the bottom of one side of the tank body (100), an exhaust port (102) is arranged at the top of the tank body (100), an overflow pipe (103) is mounted at the top of one side of the tank body (100), a plurality of horizontally arranged material containing plates (200) are fixedly mounted in the tank body (100), a plurality of link rings (104) are mounted outside the tank body (100) and correspond to the plurality of material containing plates (200), a plurality of holes are formed in the tank body (100) and are in communication with the link rings (104), the plurality of holes are respectively located at the top and the bottom of the material containing plates (200), the top of the material containing plate (200) is provided with a material containing chamber coaxially arranged therewith, a partition plate (201) is fixedly mounted on the inner side of the material containing chamber and divides the groove into a storage bin one (202) and a storage bin two (203), a material blocking assembly is mounted at the top of the storage bin one (202) and the storage bin two (203), and a uniform distribution plate (300) is rotatably mounted at the top of the plurality of material containing plates (200).

4. The method according to claim 3, wherein the method is characterized by, Two air chambers are formed in the bottom inner wall of the material containing plate (200) and correspond to the storage bin one (202) and the storage bin two (203), and an air pipe (106) is mounted on the tank body (100) and is in communication with the plurality of air chambers.

5. The method according to claim 3, wherein the method is characterized by, The material blocking assembly comprises a plurality of material blocking plates (204), the material blocking plates (204) are vertically arranged and rotatably connected with the partition plate (201), the adjacent two material blocking plates (204) are overlapped front to back, the inner side of the partition plate (201) is provided with a mounting cavity, two annular chain belts (206) are mounted in the mounting cavity, a plurality of sprockets (205) are mounted on the inner side of the two chain belts (206), wherein the sprockets (205) correspond to the plurality of material blocking plates (204), and the filling assembly further comprises a driving mechanism for driving the two chain belts (206) to rotate.

6. The method according to claim 5, wherein the method is characterized by, The driving mechanism comprises a vertical shaft (207) rotatably mounted at the center of the bottom of the tank body (100), the top of the vertical shaft (207) penetrates through the plurality of mounting cavities and extends to the top of the material containing plate (200), the plurality of uniform distribution plates (300) are fixedly sleeved on the outer portion of the vertical shaft (207), a bevel gear one (208) is fixedly sleeved on the outer portion of the section of the vertical shaft (207) located in the mounting cavity, two bevel gear twos (209) are mounted on the outer portion of the bevel gear one (208) and are in engagement with the bevel gear one (208), the two bevel gear twos (209) are respectively in transmission connection with the outer wall of one sprocket (205) of the two chain belts (206) through a ratchet wheel, and the driving mechanism further comprises a brake motor (210) mounted at the bottom of the tank body (100) and used for driving the vertical shaft (207) to rotate.

7. The method according to claim 3, wherein the method is characterized by, The uniform distribution plate (300) comprises a horizontal section (3001) and an inclined section (3002), a plurality of parallely arranged trapezoidal grooves (3003) are formed in the horizontal section (3001), the tip of the trapezoidal groove (3003) is arranged downward, a plurality of tapered holes (3004) are arranged on the inclined section (3002), the tip of the tapered hole (3004) is arranged upward, and the outer part of the tank body (100) is provided with a plurality of blowdown pipes (105) arranged correspondingly with the plurality of uniform distribution plates (300).

8. The method according to claim 3, wherein the method is characterized by, The filler assembly comprises a hole plate (301) arranged horizontally on the top of the uniform distribution plate (300), a plurality of first fixing rods (302) are rotatably arranged on the top of the uniform distribution plate (300), a plurality of second fixing rods (303) are fixedly arranged on the bottom of the hole plate (301), the first fixing rods (302) and the second fixing rods (303) are vertically arranged, and polypropylene fillers (304) are arranged on the first fixing rods (302) and the second fixing rods (303).

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