CN113200600A - Device and method for treating high-ammonia-nitrogen organic matter wastewater by semi-shortcut nitrification-anaerobic ammonia oxidation and serial shortcut denitrification-anaerobic ammonia oxidation - Google Patents
Device and method for treating high-ammonia-nitrogen organic matter wastewater by semi-shortcut nitrification-anaerobic ammonia oxidation and serial shortcut denitrification-anaerobic ammonia oxidation Download PDFInfo
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- C02F3/00—Biological treatment of water, waste water, or sewage
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- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
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Abstract
A device and a method for treating high ammonia nitrogen organic matter wastewater by semi-shortcut nitrification-anaerobic ammonia oxidation and serial shortcut denitrification-anaerobic ammonia oxidation belong to the field of sewage treatment. Part of ammonia nitrogen in the high ammonia nitrogen organic wastewater is converted into nitrite nitrogen through semi-shortcut nitrification, and then the effluent of the semi-shortcut nitrification reactor is subjected to anaerobic ammonia oxidation reaction in a UASB granular sludge system to synchronously remove the ammonia nitrogen and the nitrite nitrogen; the anaerobic ammonia oxidation effluent containing nitrate nitrogen and the high ammonia nitrogen organic matter wastewater entering in parallel react in the short-cut denitrification anaerobic ammonia oxidation integrated UASB reactor, the nitrate nitrogen is converted into nitrite nitrogen under the action of short-cut denitrifying bacteria, and then the nitrite nitrogen and the high ammonia nitrogen organic matter wastewater entering in parallel undergo anaerobic ammonia oxidation reaction, so that the denitrification rate of the system is further improved. The method provides a new idea for treating the high ammonia nitrogen organic matter wastewater, solves the problems of large energy consumption, low denitrification efficiency and the like, and improves the effluent quality.
Description
Technical Field
The invention relates to a device and a method for treating high ammonia nitrogen organic matter wastewater by semi-shortcut nitrification-anaerobic ammonia oxidation and serial shortcut denitrification-anaerobic ammonia oxidation, belonging to the field of biological sewage treatment.
Background
With the rapid development of economy and the advocation of sustainable development concept in China, the problem of increasing shortage of water resources is gradually concerned. However, a large amount of water resources are utilized to pollute the water body due to improper treatment or discharge, wherein the phenomenon of water body eutrophication is the most common phenomenon. Nowadays, the chemical fertilizer and petroleum industries are increasingly strong, and the discharged high ammonia nitrogen organic wastewater is highly valued by the industry people by the characteristics of high ammonia nitrogen, strong harmfulness, difficult treatment and the like. With increasingly strict sewage discharge standards and continuously deteriorated water quality conditions, the traditional nitrification and denitrification process cannot meet the requirements of energy conservation, high efficiency, high denitrification efficiency and the like, and the development of a new sustainable, quality-improving and efficiency-improving denitrification process is urgent.
In the field of biological denitrification of sewage, anammox bacteria oxidize ammonia by using nitrite as an electron acceptor to generate nitrogen, thereby achieving the purpose of removing nitrogen pollution in water. The proposal and application of the anaerobic ammonia oxidation promote the function conversion of the sewage treatment plant from the high-energy-consumption end treatment to a zero-energy-consumption or energy-production unit, the combined process of the anaerobic ammonia oxidation process and other novel denitrification processes can realize the deep denitrification of the wastewater, and an up-flow anaerobic sludge bed reactor (UASB) is favorable for the effective retention of anaerobic ammonia oxidizing bacteria. At present, the short-cut nitrification process controls the nitrification reaction to only be carried out to the nitrite nitrogen stage, thereby greatly reducing the aeration energy consumption. And the semi-shortcut nitrification stops aeration before the ammonia valley point so as to control the ratio of ammonia nitrogen to nitrite nitrogen to reach 1-1.32, and provide stable substrate acquisition for anaerobic ammonia oxidation.
The short-range denitrification makes denitrification stay in the intermediate product nitrite nitrogen, thereby obtaining high and stable nitrite accumulation for oxygen supply ammoxidation reaction. A large amount of nitrate nitrogen is bound to be contained in effluent of the semi-shortcut nitrification anaerobic ammonium oxidation, in order to further reduce total nitrogen and improve denitrification efficiency, a shortcut nitrification anaerobic ammonium oxidation UASB reactor can be connected in series, and by utilizing the advantages of an upflow reactor, the retention and cooperation of flora are promoted, so that the deep denitrification of the high ammonia nitrogen organic wastewater is realized.
Disclosure of Invention
The invention provides a device and a method for treating high ammonia nitrogen organic matter wastewater by using semi-shortcut nitrification anaerobic ammonia oxidation and serial shortcut denitrification anaerobic ammonia oxidation. Converting half of ammonia nitrogen in the high ammonia nitrogen organic wastewater into nitrite nitrogen through half short-cut nitrification, and then performing anaerobic ammonia oxidation reaction on effluent with the mass concentration ratio of the ammonia nitrogen to the nitrite nitrogen being 1-1.32 in a UASB granular sludge system to synchronously remove the ammonia nitrogen and the nitrite nitrogen; the anaerobic ammonia oxidation effluent containing nitrate nitrogen and the high ammonia nitrogen organic matter wastewater entering in parallel react in the short-cut denitrification anaerobic ammonia oxidation integrated UASB reactor, the nitrate nitrogen is converted into nitrite nitrogen under the action of short-cut denitrifying bacteria, and then the nitrite nitrogen reacts with ammonia nitrogen in the high ammonia nitrogen organic matter wastewater to carry out anaerobic ammonia oxidation reaction, so that the denitrification rate of the system is further improved. The method provides a new idea for treating the high ammonia nitrogen organic matter wastewater, solves the problems of large energy consumption, low denitrification efficiency and the like, and improves the effluent quality.
The purpose of the invention is solved by the following technical scheme: the device and the method for treating the high-ammonia nitrogen organic matter wastewater by the semi-shortcut nitrification anaerobic ammonia oxidation and the serial shortcut denitrification anaerobic ammonia oxidation are characterized in that:
the device comprises: the system comprises a water inlet tank (1), a semi-short-cut nitrification SBR reactor (2), a first intermediate water tank (3), an anaerobic ammonium oxidation UASB reactor (4), a second intermediate water tank (5) and a short-cut denitrification anaerobic ammonium oxidation UASB reactor (6);
the semi-short-cut nitrification SBR reactor (2) comprises a first peristaltic pump (2.1), a first water inlet (2.2), an aeration disc (2.3), a first water outlet (2.4), a gas flowmeter (2.5), a gas pump (2.6), a stirrer (2.7) and a first pH/DO tester (2.8); the anaerobic ammonia oxidation UASB reactor (4) comprises a second peristaltic pump (4.1), a second water inlet (4.2), a second pH/DO tester (4.3), a temperature control device (4.4) and a second water outlet (4.5); the short-cut denitrification anaerobic ammonia oxidation UASB reactor (6) comprises a third peristaltic pump (6.1), a third water inlet (6.2), a fourth peristaltic pump (6.3), a third pH/DO tester (6.4), a reflux port (6.5), a third water outlet (6.6) and a fifth peristaltic pump (6.7);
high ammonia nitrogen organic wastewater in the water inlet tank (1) is pumped into the half-short-cut nitrification SBR reactor (2) from a first water inlet (2.2) through a first peristaltic pump (2.1), and effluent is discharged into a first intermediate water tank (3) through a first water outlet (2.4); the first intermediate water tank (3) is connected with a second water inlet (4.2) of the anaerobic ammonia oxidation UASB reactor (4) through a second peristaltic pump (4.1), and the outlet water is discharged into a second intermediate water tank (5) through a second water outlet (4.5); the water inlet tank (1) and the second intermediate tank (5) are respectively connected with a third water inlet (6.2) of the short-range denitrification anaerobic ammonia oxidation UASB reactor (6) through a fifth peristaltic pump (6.7) and a third peristaltic pump (6.1), and the return port (6.5) is connected with the third water inlet (6.2) through a fourth peristaltic pump (6.3) and performs sludge return.
2. Method for applying the device according to claim 1, comprising the steps of:
(1) starting the system:
(1.1) starting a half-short-cut nitrification SBR reactor: the inoculated sludge is short-range nitrified sludge, the concentration of the inoculated sludge is kept at 3000-3500mg/L, the sludge retention time is 25 days, the hydraulic retention time is 3-4h, and the operation is carried out at room temperature; in each period, NH in the inlet water tank (1) is added4 +Pumping the high ammonia nitrogen organic wastewater with N of 200-250 mg/L and COD of 650-1300 mg/L into a half-short-cut nitrification SBR reactor (2) through a first peristaltic pump (2.1), keeping dissolved oxygen at 2-2.5 mg/L, aerating and stirring for 3 hours, and draining water after 1 hour of precipitation, wherein the drainage ratio is 60%; and when the mass concentration ratio of the ammonia nitrogen to the nitrite nitrogen in the effluent is 1-1.32 and the semi-short-cut nitrification reactor stably runs for 15 days or more, the semi-short-cut nitrification reactor is considered to be successfully started.
(1.2) starting up of anaerobic ammonia oxidation UASB reactor: the inoculated sludge is anaerobic ammonium oxidation granular sludge, the concentration of the inoculated sludge is kept at 4500-5000mg/L, the hydraulic retention time is 4h, the sludge is not actively discharged, and the temperature is kept at 30 +/-2 ℃ by a temperature control device; the effluent of the half-short-cut nitrification SBR reactor (2) in the first intermediate water tank (3) is continuously pumped into an anaerobic ammonia oxidation UASB reactor (4) through a second peristaltic pump (4.1); when the concentrations of ammonia nitrogen and nitrite nitrogen in the effluent are both less than 1mg/L and the anaerobic ammonia oxidation UASB reactor is considered to be successfully started after the anaerobic ammonia oxidation UASB reactor is stably operated for 15 days or more.
(1.3) starting a short-cut denitrification anaerobic ammonia oxidation UASB reactor: the inoculated sludge is sludge in a short-cut denitrification anaerobic ammonia oxidation integrated reactor which stably runs in a laboratory, the concentration of the inoculated sludge is kept at 5500mg/L of 5000-one, the hydraulic retention time is 4h, the reactor runs at normal temperature, and the reflux ratio of the reactor is 3.0; the effluent of the anaerobic ammonia oxidation UASB reactor (4) in the second intermediate water tank (5) is mixed with the high ammonia nitrogen organic wastewater in the water inlet water tank (1) and then is continuously pumped into the short-range denitrification anaerobic ammonia oxidation UASB reactor (6) through a third peristaltic pump (6.1), and the NO in the mixed liquid is controlled by adjusting the water inlet proportionX --N and NH4 +-the mass concentration ratio of N is 1-1.32; when the concentrations of ammonia nitrogen and nitrate nitrogen in the effluent are both less than 1mg/L and the effluent stably runs for 15 days or more, the UASB reactor is successfully started.
(2) The operation of the system is as follows:
(2.1) operation of the half-short-cut nitrification SBR reactor: NH (NH)4 +Pumping high ammonia nitrogen organic wastewater with N of 200-250 mg/L and COD of 650-1300 mg/L into a half-short-cut nitrification SBR reactor from a water inlet tank (1) through a first peristaltic pump (2.1), operating AO, controlling dissolved oxygen at 2-2.5 mg/L in an aerobic section through a gas flowmeter, and controlling sludge age to be 25 days through periodic sludge discharge; operating for 3 periods every day, wherein each period is 8 hours, and the operation comprises water feeding for 10min, anaerobic stirring for 30-60 min, aeration for 3-3.5 h, sedimentation for 1h, water draining for 10min and idling for 130-190 min; water discharge ratio of 60%, NH4 +-N and NO2 --discharging the effluent with a mass concentration ratio of-N of 1 to 1.32 into the first intermediate tank (3).
(2.2) operation of anaerobic ammonia oxidation UASB reactor: sewage in the first intermediate water tank (3) enters an anaerobic ammonia oxidation UASB reactor through a second peristaltic pump (4.1), the flow rate of the sewage is 0.75L/h, the hydraulic retention time is 4h, sludge is not actively discharged, and the temperature is controlled to be 30 +/-2 ℃; NH in the inlet water by anaerobic ammonium oxidation bacteria4 +-N and NO2 -Conversion of-N removal to N2Containing nitrate nitrogenThe effluent is discharged into a second intermediate tank (5).
(2.3) operation of the short-cut denitrification anaerobic ammonia oxidation UASB reactor: the sewage of the second middle water tank (5) and the high ammonia nitrogen organic wastewater in the water inlet tank (1) respectively enter a short-range denitrification anaerobic ammonia oxidation UASB reactor through a third peristaltic pump (6.1) and a fifth peristaltic pump (6.7), the sewage flow through the third peristaltic pump (6.1) and the fifth peristaltic pump (6.7) is respectively 0.75L/h and 0.125L/h, a backflow port (6.5) at the upper part of the reactor is connected with a third water inlet (6.2) through a fourth peristaltic pump (6.3) for backflow, the backflow amount is 2.625L/h, the backflow ratio is 3.0, and the effluent is discharged through a U-shaped pipe.
The invention has the following advantages:
1) through the semi-short-cut nitration reaction, not only can provide proper proportion of ammonia nitrogen and nitrite nitrogen for subsequent anaerobic ammonia oxidation, but also can save aeration energy consumption, and is economic and effective.
2) The upflow anaerobic sludge blanket reactor is beneficial to the retention of the anaerobic ammonium oxidation bacteria, and the synchronous removal of ammonia nitrogen and nitrite nitrogen is realized to a greater extent.
3) The short-range denitrifying bacteria and the anaerobic ammonium oxidation bacteria realize the synergistic denitrification in the upflow anaerobic sludge blanket reactor, the byproduct nitrate nitrogen of the previous anaerobic ammonium oxidation reactor is treated, and the total nitrogen is further reduced.
4) The short-cut denitrification anaerobic ammonia oxidation process reduces aeration energy consumption and carbon source requirements, the sludge yield is far less than that of the traditional nitrification and denitrification process, and the subsequent sludge treatment cost is reduced.
In conclusion, the method for treating the high ammonia nitrogen organic wastewater has the advantages of saving aeration energy consumption, improving denitrification rate, reducing carbon source demand and the like.
Drawings
FIG. 1 is a schematic diagram of: a device and a method for treating high ammonia nitrogen organic matter wastewater by semi-shortcut nitrification-anaerobic ammonia oxidation and serial shortcut denitrification-anaerobic ammonia oxidation.
In fig. 1: 1-a water inlet tank, 2-a semi-short-cut nitrification SBR reactor, 3-a first intermediate water tank, 4-an anaerobic ammonia oxidation UASB reactor, 5-a second intermediate water tank and 6-a short-cut denitrification anaerobic ammonia oxidation UASB reactor; 2.1-a first peristaltic pump, 2.2-a first water inlet, 2.3-an aeration disc, 2.4-a first water outlet, 2.5-a gas flowmeter, 2.6-an air pump, 2.7-a stirrer and 2.8-a first pH/DO determinator; 4.1-a second peristaltic pump, 4.2-a second water inlet, 4.3-a second pH/DO tester, 4.4-a temperature control device, 4.5-a second water outlet and 6.1-a third peristaltic pump; 6.2-a third water inlet, 6.3-a fourth peristaltic pump, 6.4-a third pH/DO tester, 6.5-a reflux port, 6.6-a third water outlet and 6.7-a fifth peristaltic pump.
Detailed Description
The embodiments of the present invention will be described in detail below with reference to the accompanying drawings and examples:
as shown in fig. 1, the device and the method for treating high ammonia nitrogen organic matter wastewater by semi-shortcut nitrification-anaerobic ammonia oxidation and serial shortcut denitrification-anaerobic ammonia oxidation use the device comprising: the system comprises a water inlet tank (1), a semi-short-cut nitrification SBR reactor (2), a first intermediate water tank (3), an anaerobic ammonium oxidation UASB reactor (4), a second intermediate water tank (5) and a short-cut denitrification anaerobic ammonium oxidation UASB reactor (6); the method is characterized in that high ammonia nitrogen organic wastewater in the water inlet tank (1) is pumped into the half-shortcut nitrification SBR reactor (2) from a first water inlet (2.2) through a first peristaltic pump (2.1), and effluent is discharged into a first intermediate water tank (3) through a first water outlet (2.4); the first intermediate water tank (3) is connected with a second water inlet (4.2) of the anaerobic ammonia oxidation UASB reactor (4) through a second peristaltic pump (4.1), and the outlet water is discharged into a second intermediate water tank (5) through a second water outlet (4.5); the water inlet tank (1) and the second intermediate tank (5) are respectively connected with a third water inlet (6.2) of the short-range denitrification anaerobic ammonia oxidation UASB reactor (6) through a fifth peristaltic pump (6.7) and a third peristaltic pump (6.1), and the return port (6.5) is connected with the third water inlet (6.2) through a fourth peristaltic pump (6.3) and performs sludge return.
The experimental system is shown in figure 1, each reactor is made of organic glass, the total volume of the half-short-cut nitrification SBR reactor (2) is 11L, and the effective volume is 10L; 5L of anaerobic ammonia oxidation UASB reactor (4), the effective volume is 3L; the total volume of the short-cut denitrification anaerobic ammonia oxidation UASB reactor (6) is 5L, and the effective volume is 3L.
In the test process, the specific experimental water is taken from high ammonia nitrogen discharged from a certain industrial park of BeijingThe organic wastewater comprises the following specific water qualities: COD concentration is 650-1300 mg/L, NH4 +The concentration of-N is 200-250 mg/L, NO2 -N concentration < 1mg/L, NO3 --N concentration < 1 mg/L.
The specific operation is as follows:
(1) starting the system:
(1.1) starting a half-short-cut nitrification SBR reactor: the inoculated sludge is short-range nitrified sludge, the concentration of the inoculated sludge is kept at 3000-3500mg/L, the sludge retention time is 25 days, the hydraulic retention time is 3-4h, and the operation is carried out at room temperature; in each period, NH in the inlet water tank (1) is added4 +Pumping the high ammonia nitrogen organic wastewater with N of 200-250 mg/L and COD of 650-1300 mg/L into a half-short-cut nitrification SBR reactor (2) through a first peristaltic pump (2.1), keeping dissolved oxygen at 2-2.5 mg/L, aerating and stirring for 3 hours, and draining water after 1 hour of precipitation, wherein the drainage ratio is 60%; and when the mass concentration ratio of the ammonia nitrogen to the nitrite nitrogen in the effluent is 1-1.32 and the semi-short-cut nitrification reactor stably runs for 15 days or more, the semi-short-cut nitrification reactor is considered to be successfully started.
(1.2) starting up of anaerobic ammonia oxidation UASB reactor: the inoculated sludge is anaerobic ammonium oxidation granular sludge, the concentration of the inoculated sludge is kept at 4500-5000mg/L, the hydraulic retention time is 4h, the sludge is not actively discharged, and the temperature is kept at 30 +/-2 ℃ by a temperature control device; the effluent of the half-short-cut nitrification SBR reactor (2) in the first intermediate water tank (3) is continuously pumped into an anaerobic ammonia oxidation UASB reactor (4) through a second peristaltic pump (4.1); when the concentrations of ammonia nitrogen and nitrite nitrogen in the effluent are both less than 1mg/L and the anaerobic ammonia oxidation UASB reactor is considered to be successfully started after the anaerobic ammonia oxidation UASB reactor is stably operated for 15 days or more.
(1.3) starting a short-cut denitrification anaerobic ammonia oxidation UASB reactor: the inoculated sludge is sludge in a short-cut denitrification anaerobic ammonia oxidation integrated reactor which stably runs in a laboratory, the concentration of the inoculated sludge is kept at 5500mg/L of 5000-one, the hydraulic retention time is 4h, the reactor runs at normal temperature, and the reflux ratio of the reactor is 3.0; the effluent of the anaerobic ammonia oxidation UASB reactor (4) in the second intermediate water tank (5) is mixed with the high ammonia nitrogen organic wastewater in the water inlet water tank (1) and then is continuously pumped into the short-range denitrification anaerobic ammonium oxygen through a third peristaltic pump (6.1)In the UASB reactor (6), NO in the mixed liquid is controlled by adjusting the water inlet proportionX --N and NH4 +-the mass concentration ratio of N is 1-1.32; when the concentrations of ammonia nitrogen and nitrate nitrogen in the effluent are both less than 1mg/L and the effluent stably runs for 15 days or more, the UASB reactor is successfully started.
(2) The operation of the system is as follows:
(2.1) operation of the half-short-cut nitrification SBR reactor: NH (NH)4 +Pumping high ammonia nitrogen organic wastewater with N of 200-250 mg/L and COD of 650-1300 mg/L into a half-short-cut nitrification SBR reactor from a water inlet tank (1) through a first peristaltic pump (2.1), operating AO, controlling dissolved oxygen at 2-2.5 mg/L in an aerobic section through a gas flowmeter, and controlling sludge age to be 25 days through periodic sludge discharge; operating for 3 periods every day, wherein each period is 8 hours, and the operation comprises water feeding for 10min, anaerobic stirring for 30-60 min, aeration for 3-3.5 h, sedimentation for 1h, water draining for 10min and idling for 130-190 min; water discharge ratio of 60%, NH4 +-N and NO2 --discharging the effluent with a mass concentration ratio of-N of 1 to 1.32 into the first intermediate tank (3).
(2.2) operation of anaerobic ammonia oxidation UASB reactor: sewage in the first intermediate water tank (3) enters an anaerobic ammonia oxidation UASB reactor through a second peristaltic pump (4.1), the flow rate of the sewage is 0.75L/h, the hydraulic retention time is 4h, sludge is not actively discharged, and the temperature is controlled to be 30 +/-2 ℃; NH in the inlet water by anaerobic ammonium oxidation bacteria4 +-N and NO2 -Conversion of-N removal to N2And the effluent containing nitrate nitrogen is discharged into a second intermediate water tank (5).
(2.3) operation of the short-cut denitrification anaerobic ammonia oxidation UASB reactor: the sewage of the second middle water tank (5) and the high ammonia nitrogen organic wastewater in the water inlet tank (1) respectively enter a short-range denitrification anaerobic ammonia oxidation UASB reactor through a third peristaltic pump (6.1) and a fifth peristaltic pump (6.7), the sewage flow through the third peristaltic pump (6.1) and the fifth peristaltic pump (6.7) is respectively 0.75L/h and 0.125L/h, a backflow port (6.5) at the upper part of the reactor is connected with a third water inlet (6.2) through a fourth peristaltic pump (6.3) for backflow, the backflow amount is 2.625L/h, the backflow ratio is 3.0, and the effluent is discharged through a U-shaped pipe.
The test result shows that: after the system runs stably, the semi-short-cut nitrification stage can realize the nitrite accumulation rate of 40-50%, and the ratio of the effluent ammonia nitrogen to the nitrite nitrogen is about 1-1.32; nitrite nitrogen is used as an electron acceptor to be converted into nitrogen in the ammonia nitrogen oxidation stage, nitrate nitrogen in the effluent and ammonia nitrogen in the wastewater are synchronously removed in the short-cut denitrification anaerobic ammonia oxidation stage, COD (chemical oxygen demand) of the effluent is less than 50mg/L, ammonia nitrogen in the effluent is less than 5mg/L, and total nitrogen in the effluent is less than 15mg/L, so that deep denitrification of the high ammonia nitrogen organic wastewater is realized.
The foregoing is a detailed description of the invention that will enable those skilled in the art to better understand and utilize the invention, and it is not to be limited thereby, since various modifications and changes may be made by those skilled in the art without departing from the scope of the invention.
Claims (2)
1. Device of high ammonia nitrogen organic matter waste water is handled to half shortcut nitrification anammox series connection shortcut denitrification anammox, its characterized in that includes: the system comprises a water inlet tank (1), a semi-short-cut nitrification SBR reactor (2), a first intermediate water tank (3), an anaerobic ammonium oxidation UASB reactor (4), a second intermediate water tank (5) and a short-cut denitrification anaerobic ammonium oxidation UASB reactor (6);
the semi-short-cut nitrification SBR reactor (2) comprises a first peristaltic pump (2.1), a first water inlet (2.2), an aeration disc (2.3), a first water outlet (2.4), a gas flowmeter (2.5), a gas pump (2.6), a stirrer (2.7) and a first pH/DO tester (2.8); the anaerobic ammonia oxidation UASB reactor (4) comprises a second peristaltic pump (4.1), a second water inlet (4.2), a second pH/DO tester (4.3), a temperature control device (4.4) and a second water outlet (4.5); the short-cut denitrification anaerobic ammonia oxidation UASB reactor (6) comprises a third peristaltic pump (6.1), a third water inlet (6.2), a fourth peristaltic pump (6.3), a third pH/DO tester (6.4), a reflux port (6.5), a third water outlet (6.6) and a fifth peristaltic pump (6.7);
high ammonia nitrogen organic wastewater in the water inlet tank (1) is pumped into the half-short-cut nitrification SBR reactor (2) from a first water inlet (2.2) through a first peristaltic pump (2.1), and effluent is discharged into a first intermediate water tank (3) through a first water outlet (2.4); the first intermediate water tank (3) is connected with a second water inlet (4.2) of the anaerobic ammonia oxidation UASB reactor (4) through a second peristaltic pump (4.1), and the outlet water is discharged into a second intermediate water tank (5) through a second water outlet (4.5); the water inlet tank (1) and the second intermediate tank (5) are respectively connected with a third water inlet (6.2) of the short-range denitrification anaerobic ammonia oxidation UASB reactor (6) through a fifth peristaltic pump (6.7) and a third peristaltic pump (6.1), and the return port (6.5) is connected with the third water inlet (6.2) through a fourth peristaltic pump (6.3) and performs sludge return.
2. Method for applying the device according to claim 1, comprising the steps of:
(1) starting the system:
(1.1) starting a half-short-cut nitrification SBR reactor: the inoculated sludge is short-range nitrified sludge, the concentration of the inoculated sludge is kept at 3000-3500mg/L, the sludge retention time is 25 days, the hydraulic retention time is 3-4h, and the operation is carried out at room temperature; in each period, NH in the inlet water tank (1) is added4 +Pumping the high ammonia nitrogen organic wastewater with N of 200-250 mg/L and COD of 650-1300 mg/L into a half-short-cut nitrification SBR reactor (2) through a first peristaltic pump (2.1), keeping dissolved oxygen at 2-2.5 mg/L, aerating and stirring for 3 hours, and draining water after 1 hour of precipitation, wherein the drainage ratio is 60%; when the mass concentration ratio of ammonia nitrogen to nitrite nitrogen in the effluent is 1-1.32 and the semi-shortcut nitrification reactor stably runs for 15 days or more, the semi-shortcut nitrification reactor is considered to be successfully started;
(1.2) starting up of anaerobic ammonia oxidation UASB reactor: the inoculated sludge is anaerobic ammonium oxidation granular sludge, the concentration of the inoculated sludge is kept at 4500-5000mg/L, the hydraulic retention time is 4h, the sludge is not actively discharged, and the temperature is kept at 30 +/-2 ℃ by a temperature control device; the effluent of the half-short-cut nitrification SBR reactor (2) in the first intermediate water tank (3) is continuously pumped into an anaerobic ammonia oxidation UASB reactor (4) through a second peristaltic pump (4.1); when the concentrations of ammonia nitrogen and nitrite nitrogen in the effluent are both less than 1mg/L and the anaerobic ammonia oxidation UASB reactor is considered to be successfully started after the anaerobic ammonia oxidation UASB reactor is stably operated for 15 days or more;
(1.3) starting a short-cut denitrification anaerobic ammonia oxidation UASB reactor: inoculating sludge in the short-cut denitrification anaerobic ammonia oxidation integrated reactor which runs stably in a laboratory, and inoculatingThe concentration of the post-sludge is kept at 5500mg/L of 5000-; the effluent of the anaerobic ammonia oxidation UASB reactor (4) in the second intermediate water tank (5) is mixed with the high ammonia nitrogen organic wastewater in the water inlet water tank (1) and then is continuously pumped into the short-range denitrification anaerobic ammonia oxidation UASB reactor (6) through a third peristaltic pump (6.1), and the NO in the mixed liquid is controlled by adjusting the water inlet proportionX --N and NH4 +-the mass concentration ratio of N is 1-1.32; when the concentrations of ammonia nitrogen and nitrate nitrogen in the effluent are both less than 1mg/L and the effluent stably runs for 15 days or more, the UASB reactor is successfully started;
(2) the operation of the system is as follows:
(2.1) operation of the half-short-cut nitrification SBR reactor: NH (NH)4 +Pumping high ammonia nitrogen organic wastewater with N of 200-250 mg/L and COD of 650-1300 mg/L into a half-short-cut nitrification SBR reactor from a water inlet tank (1) through a first peristaltic pump (2.1), operating AO, controlling dissolved oxygen at 2-2.5 mg/L in an aerobic section through a gas flowmeter, and controlling sludge age to be 25 days through periodic sludge discharge; operating for 3 periods every day, wherein each period is 8 hours, and the operation comprises water feeding for 10min, anaerobic stirring for 30-60 min, aeration for 3-3.5 h, sedimentation for 1h, water draining for 10min and idling for 130-190 min; water discharge ratio of 60%, NH4 +-N and NO2 --discharging the effluent with a mass concentration ratio of N of 1-1.32 into a first intermediate tank (3);
(2.2) operation of anaerobic ammonia oxidation UASB reactor: sewage in the first intermediate water tank (3) enters an anaerobic ammonia oxidation UASB reactor through a second peristaltic pump (4.1), the flow rate of the sewage is 0.75L/h, the hydraulic retention time is 4h, sludge is not actively discharged, and the temperature is controlled to be 30 +/-2 ℃; NH in the inlet water by anaerobic ammonium oxidation bacteria4 +-N and NO2 -Conversion of-N removal to N2The effluent containing nitrate nitrogen is discharged into a second intermediate water tank (5);
(2.3) operation of the short-cut denitrification anaerobic ammonia oxidation UASB reactor: the sewage of the second middle water tank (5) and the high ammonia nitrogen organic wastewater in the water inlet tank (1) respectively enter a short-range denitrification anaerobic ammonia oxidation UASB reactor through a third peristaltic pump (6.1) and a fifth peristaltic pump (6.7), the sewage flow through the third peristaltic pump (6.1) and the fifth peristaltic pump (6.7) is respectively 0.75L/h and 0.125L/h, a backflow port (6.5) at the upper part of the reactor is connected with a third water inlet (6.2) through a fourth peristaltic pump (6.3) for backflow, the backflow amount is 2.625L/h, the backflow ratio is 3.0, and the effluent is discharged through a U-shaped pipe.
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