CN217808947U - Sewage deep denitrification reactor - Google Patents

Abstract

The utility model relates to a sewage treatment technical field discloses a sewage degree of depth denitrogenation reactor, including degree of depth denitrogenation reactor equipment body and control system, degree of depth denitrogenation reactor equipment body bottom is provided with the water distribution system, the inboard fixedly connected with solidification carrier microbial generator in degree of depth denitrogenation reactor equipment body lower part, the bearing layer top is provided with the combination formula and packs, the annular weir that goes out of deep denitrification reactor equipment body top fixedly connected with. The utility model discloses in, go out the water weir through water-locator and top for the annular of cockscomb structure and carry out the rectification to the water, form water distribution district and clear water district respectively in degree of depth denitrification reactor equipment body bottom and top, optimize the water conservancy structure, reduce the impact load that denitrification reactor bore, cushion sewage through cyclic annular buffering strip and ring baffle, reduce the impact that the interior microorganism parent of cyclic annular carrier received, reactor denitrogenation homogeneity is good, and it is secure to go out water quality of water.

Description

Sewage deep denitrification reactor

Technical Field

The utility model relates to a sewage treatment technical field especially relates to a sewage degree of depth denitrogenation reactor.

Background

The excessive nitrogen element in the water body is one of the important factors causing water pollution, the harm brought by the excessive nitrogen element is various, one of the outstanding problems is eutrophication of the water body, the ecological balance of the water body is damaged, the water taking safety of a water source place is threatened, the shortage situation of water resources is further aggravated, and the denitrification reactor can convert nitrate nitrogen into gaseous nitrogen through a denitrification process.

The denitrification process mainly comprises a breakpoint chlorination method, an ion exchange method, a membrane separation method, a biological denitrification method and the like, wherein the biological denitrification is most economical and feasible, the existing biological denitrification reactor has poor impact load resistance, the hydraulic structure design needs to be optimized, equipment is easy to be subjected to excessive impact load, the sewage has a short flow phenomenon and influences the effluent quality, in addition, the carbon source adding precision of the denitrification reactor needs to be improved, and the problems of COD (chemical oxygen demand) exceeding and total nitrogen exceeding easily occur at the water outlet of the reactor.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a deep sewage denitrification reactor, which solves the problems of poor water quality and insufficient carbon source adding precision.

In order to achieve the above purpose, the utility model provides a following technical scheme:

a sewage deep denitrification reactor comprises a deep denitrification reactor equipment body and a central control system, wherein a water distribution system is arranged at the bottom of the deep denitrification reactor equipment body, a solidified carrier microbial generator is fixedly connected to the inner side of the lower part of the deep denitrification reactor equipment body, a bearing layer is arranged on the upper side of the solidified carrier microbial generator and is fixedly connected to the inner side of the deep denitrification reactor equipment body, combined type filler is arranged at the top end of the bearing layer, an annular water outlet weir is fixedly connected to the top end of the deep denitrification reactor equipment body, the water distribution system is communicated with a carbon source feeding system, and the deep denitrification reactor equipment body is communicated with a drainage system;

the solidified carrier microbial generator comprises an annular pipe and an annular buffer strip, wherein an annular carrier is arranged on the inner side of the annular pipe, an annular opening is formed in the bottom of the annular pipe, annular baffles are arranged on the inner side and the outer side of the annular opening, the central control system comprises a controller, and the controller is connected with a first nitrate ion sensor, a first nitrite ion sensor, a first COD (chemical oxygen demand) sensor, a second nitrate ion sensor, a second nitrite ion sensor and a second COD (chemical oxygen demand) sensor through wireless signals;

according to the technical scheme, sewage is pumped into the deep denitrification reactor equipment body through the water distribution system, a carbon source is pumped into the deep denitrification reactor equipment body through the carbon source adding system, denitrification treatment is carried out on the sewage through the solidified carrier microbial generator matched combined type filler, water discharged from the annular water outlet weir is transferred through the drainage system, and the sewage denitrification process is monitored and adjusted through the central control system.

Furthermore, the adjacent annular pipes are connected through connecting rods, the center lines of the annular pipes are circular, the center lines of the annular pipes are coplanar and concentric, the radius differences of the center lines of the adjacent annular pipes are equal, the outermost annular pipe is connected with the deep denitrification reactor body through the connecting rods, a microorganism parent body is arranged in the annular carrier, the annular baffle is fixedly connected to the bottom of the annular pipe, the cross section of the annular baffle is arc-shaped, the annular buffer strip is fixedly connected to the inside of the annular pipe through the connecting rods, and through holes which are uniformly distributed are formed in the top of the annular pipe and the inside of the supporting layer;

through above-mentioned technical scheme, sewage cushions sewage through cyclic annular buffering strip and annular baffle through the in-process of solidification carrier microbial generator.

Further, the water distribution system comprises a water supply pipe and a water distributor, the water supply pipe is communicated with a sewage lift pump, a water outlet of the sewage lift pump is communicated with a first check valve, a water inlet pipe is fixedly connected to the top end of the first check valve and is communicated with the water distributor, the water inlet pipe penetrates through the bottom wall of the deep denitrification reactor device body, and the water distributor is fixedly connected to the bottom end of the inner side of the deep denitrification reactor device body;

through above-mentioned technical scheme, inside sewage and the carbon source that bypass annular buffering strip got into the ring carrier in the ring channel from annular opening part, annular buffering strip and ring baffle had reduced the impact that the interior microorganism parent of ring carrier received, and the microorganism parent has extremely strong resistant toxic substance and the impact ability of load change, ensures denitrification reactor's security and stability.

Further, the carbon source adding system comprises a carbon source tank and a third check valve, the bottom of the carbon source tank is communicated with a discharge valve, the left end of the discharge valve is communicated with two metering pumps, the water outlets of the metering pumps are communicated with a second check valve, the top end of the second check valve is communicated with a mass flow meter, the right end of the third check valve is communicated with the two mass flow meters, the left end of the third check valve is communicated with a water inlet pipe, the third check valve is fixedly connected to the bottom end of the deep denitrification reactor equipment body, the height of the deep denitrification reactor equipment body is 13-16 m, and the diameter of the deep denitrification reactor equipment body is 2.5-3.5 m;

through the technical scheme, first check valve, the water body reflux in the inlet pipe is prevented to second check valve and third check valve, prevent that sewage elevator pump and measuring pump from receiving the pollution, sewage elevator pump is in with the leading-in inlet pipe of sewage in the inlet pipe, open the bleeder valve, the measuring pump is in with the leading-in inlet pipe of carbon source jar carbon source, sewage upwards gets into the water-locator along the inlet tube after mixing with the carbon source, the water-locator is with sewage and carbon source evenly distributed at the deep denitrification reactor equipment originally internally, sewage and carbon source are from up-going down at the deep denitrification reactor equipment originally, solidification carrier microbial generator upwards produces the microorganism, the microorganism that the microorganism parent produced evenly gets into the combination formula filler through the through-hole on a plurality of ring pipes and the bearing layer, the microorganism in the combination formula filler carries out nitrogen removal to sewage, the denitrogenation effect is even effective.

Further, the drainage system comprises a water collection cover and a drainage pipe, the bottom of the water collection cover is communicated with a three-way valve, the right end of the three-way valve is communicated with a water storage tank, the top end of the inner side of the water storage tank is provided with a liquid level meter, and the bottom end of the three-way valve is communicated with the drainage pipe;

through the technical scheme, water through denitrification treatment overflows to the cover that catchments from annular play weir department, both ends switch on about the three-way valve, the bottom is closed, the water body that flows from the cover that catchments gets into in the water storage tank through the three-way valve, level gauge cooperation controller detects the liquid level height in the water storage tank, if the liquid level rises to the upper limit threshold value, then the left end and the bottom of three-way valve switch on, the right-hand member is closed, the water is discharged from the drain pipe, if the liquid level in the water storage tank drops to the lower limit threshold value, then both ends switch on once more about the three-way valve, the bottom is closed once more, hydroenergy in the water storage tank can regard as the solvent of carbon source in the carbon source jar, drainage system carries out recycle to the water resource, be favorable to environmental protection.

Furthermore, the water collecting cover is fixedly connected to the outer side of the top of the deep denitrification reactor equipment body, the annular effluent weir is arranged inside the water collecting cover, and the upper part of the annular effluent weir is in a sawtooth shape;

through above-mentioned technical scheme, go out the weir through water-locator and top for the annular of cockscomb structure and carry out the rectification to the water, form water distribution district and clear water district respectively in degree of depth denitrification reactor equipment body bottom and top, optimize the water conservancy structure, guarantee that rivers evenly pass through degree of depth denitrification reactor equipment body, reduce the impact load that denitrification reactor bore.

Further, the first nitrate ion sensor, the first nitrite ion sensor and the first COD sensor are all arranged on the inner side of the bottom of the deep denitrification reactor device body, the second nitrate ion sensor, the second nitrite ion sensor and the second COD sensor are all arranged on the inner side of the top of the deep denitrification reactor device body, and the controller is connected with the sewage lifting pump, the discharge valve, the metering pump, the mass flow meter, the three-way valve and the liquid level meter through wireless signals;

through the technical scheme, the controller passes through radio signal and sewage elevator pump, the bleeder valve, the measuring pump, mass flowmeter, three-way valve and level gauge link to each other, the controller is through first nitrate ion sensor, first nitrite ion sensor and first COD sensor and second nitrate ion sensor, the information of second nitrite ion sensor and second COD sensor feedback is to sewage elevator pump, measuring pump and mass flowmeter carry out the frequency conversion regulation, multistage feedback chain control around realizing, guarantee the accurate of carbon source and throw, effectively prevent to exceed standard and total nitrogen situation from the COD of the body that deep denitrification reactor equipment body was arranged water.

The utility model discloses following beneficial effect has:

1. the utility model discloses in, go out the water weir through water-locator and top for the annular of cockscomb structure and carry out the rectification to the water, form water distribution district and clear water district respectively in degree of depth denitrification reactor equipment body bottom and top, optimize the water conservancy structure, guarantee that rivers evenly pass through degree of depth denitrification reactor equipment body, reduce the impact load that denitrification reactor bore, cushion sewage through cyclic annular buffering strip and annular baffle, reduce the impact that microorganism parent received in the cyclic annular carrier, the microorganism that microorganism parent produced evenly gets into the combination formula through the through-hole on a plurality of annular pipes and the bearing layer and packs, guarantee the denitrogenation homogeneity, it guarantees to go out water quality of water.

2. The utility model discloses in, go into sewage and carbon source respectively through water distribution system and carbon source dosing system to the interior advanced nitrogen removal reactor equipment body, the controller carries out the frequency conversion through first nitrate ion sensor, first nitrite ion sensor and first COD sensor and second nitrate ion sensor, the information of second nitrite ion sensor and second COD sensor feedback to sewage elevator pump, measuring pump and mass flow meter and adjusts, realize the accurate of carbon source and throw, prevent effectively that COD from exceeding standard and total nitrogen from exceeding standard.

3. Detect the liquid level height in the accumulator through level gauge cooperation controller to adjust the state of three-way valve through the testing result, control the trend of the water body that flows from the water collecting cover, the solvent of carbon source in the carbon source jar can be regarded as to the hydroenergy in the accumulator, drainage system carries out recycle to the water resource.

Drawings

FIG. 1 is a front perspective view of a deep denitrification reactor for sewage according to the present invention;

FIG. 2 is a schematic view of the internal structure of a deep denitrification reactor for sewage according to the present invention;

FIG. 3 is a schematic view of a water distribution system of the deep denitrification reactor for sewage according to the present invention;

FIG. 4 is a schematic view of the internal structure of a microorganism generator for a solidified carrier of a deep denitrification reactor for wastewater according to the present invention;

FIG. 5 is a perspective view of a carbon source adding system of the deep denitrification reactor for sewage according to the present invention;

FIG. 6 is a perspective view of a central control system of the deep denitrification reactor for sewage according to the present invention;

FIG. 7 is a front perspective view of a drainage system of a deep denitrification reactor for wastewater in accordance with the present invention;

FIG. 8 is a schematic view of the internal structure of a water storage tank of the deep denitrification reactor for sewage according to the present invention.

Illustration of the drawings:

1. a deep denitrification reactor equipment body; 2. a water distribution system; 3. a generator of immobilized carrier microorganisms; 4. a support layer; 5. a combined type filler; 6. an annular effluent weir; 7. a carbon source adding system; 8. a central control system; 9. a drainage system; 201. a water supply pipe; 202. a sewage lift pump; 203. a first check valve; 204. a water inlet pipe; 205. a water distributor; 301. an annular tube; 302. a cyclic carrier; 303. an annular opening; 304. an annular baffle; 305. an annular buffer strip; 701. a carbon source tank; 702. a discharge valve; 703. a metering pump; 704. a second check valve; 705. a mass flow meter; 706. a third check valve; 801. a controller; 802. a first nitrate ion sensor; 803. a first nitrite ion sensor; 804. a first COD sensor; 805. a second nitrate ion sensor; 806. a second nitrite ion sensor; 807. a second COD sensor; 901. a water collection cover; 902. a three-way valve; 903. a water storage tank; 904. a liquid level meter; 905. and a water discharge pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-8, the present invention provides an embodiment: a sewage deep denitrification reactor comprises a deep denitrification reactor device body 1 and a central control system 8, wherein a water distribution system 2 is arranged at the bottom of the deep denitrification reactor device body 1, a solidified carrier microbial generator 3 is fixedly connected to the inner side of the lower part of the deep denitrification reactor device body 1, a supporting layer 4 is arranged on the upper side of the solidified carrier microbial generator 3, the supporting layer 4 is fixedly connected to the inner side of the deep denitrification reactor device body 1, a combined filler 5 is arranged at the top end of the supporting layer 4, an annular water outlet weir 6 is fixedly connected to the top end of the deep denitrification reactor device body 1, the water distribution system 2 is communicated with a carbon source adding system 7, the deep denitrification reactor device body 1 is communicated with a drainage system 9, sewage is pumped into the deep denitrification reactor device body 1 through the water distribution system 2, a carbon source is pumped into the deep denitrification reactor device body 1 through the carbon source adding system 7, the sewage is subjected to denitrification treatment through the solidified carrier microbial generator 3 in cooperation with the combined filler 5, water discharged from the annular water outlet weir 6 is transferred through the drainage system 9, and the sewage course is monitored and regulated through the central control system 8;

the solidified carrier microorganism generator 3 comprises an annular pipe 301 and an annular buffer strip 305, an annular carrier 302 is arranged on the inner side of the annular pipe 301, an annular opening 303 is arranged at the bottom of the annular pipe 301, annular baffles 304 are arranged on the inner side and the outer side of the annular opening 303, a central control system 8 comprises a controller 801, the controller 801 is connected with a first nitrate ion sensor 802, a first nitrite ion sensor 803, a first COD sensor 804, a second nitrate ion sensor 805, a second nitrite ion sensor 806 and a second COD sensor 807 through wireless signals, the total nitrogen of the treated sewage is stably reduced to 10mg/L, the total nitrogen can be reduced to 1.5mg/L, the solidified carrier microorganism generator 3 is effective for a long time, a microorganism matrix is specially protected, microorganisms can be continuously released, attenuation is avoided, the service life reaches more than 10 years, the reaction speed of the reactor is high, the protected carrier solidified microorganism matrix can continuously generate microorganisms in the suitable sewage, the microorganisms can be propagated in the sewage in a geometric series, the deep denitrification reactor body can participate in the denitrification treatment equipment in short time, and the denitrification technology can be directly started for long time.

The adjacent annular pipes 301 are connected through connecting rods, the central lines of the annular pipes 301 are circular, the central lines of the annular pipes 301 are coplanar and concentric, the radius difference of the central lines of the adjacent annular pipes 301 is equal, the outermost annular pipe 301 is connected with the deep denitrification reactor device body 1 through the connecting rods, a microorganism matrix is arranged inside the annular carrier 302, the annular baffle 304 is fixedly connected to the bottom of the annular pipe 301, the cross section of the annular baffle 304 is arc-shaped, the annular buffer strips 305 are fixedly connected inside the annular pipe 301 through the connecting rods, uniformly distributed through holes are formed in the top of the annular pipe 301 and the inside of the supporting layer 4, in the process that sewage passes through the solidified carrier microorganism generator 3, the sewage is buffered through the annular buffer strips 305 and the annular baffle 304, the sewage and a carbon source bypassing the annular buffer strips 305 enter the annular carrier 302 inside the annular pipe 301 from the annular opening 303, the annular buffer strips 305 and the annular baffle 304 reduce the impact of the microorganism matrix in the annular carrier 302, and the microorganism matrix has extremely strong impact resistance to toxic substances and load change, and the safety and denitrification stability of the reactor are ensured.

The water distribution system 2 comprises a water supply pipe 201 and a water distributor 205, the water supply pipe 201 is communicated with a sewage lift pump 202, a water outlet of the sewage lift pump 202 is communicated with a first check valve 203, a water inlet pipe 204 is fixedly connected to the top end of the first check valve 203, the water inlet pipe 204 is communicated with the water distributor 205, the water inlet pipe 204 penetrates through the bottom wall of the deep denitrification reactor device body 1, the water distributor 205 is fixedly connected to the bottom end of the inner side of the deep denitrification reactor device body 1, the height of the deep denitrification reactor device body 1 is 15m, and the diameter of the deep denitrification reactor device body 1 is 3m.

The carbon source adding system 7 comprises a carbon source tank 701 and a third check valve 706, the bottom of the carbon source tank 701 is communicated with a discharge valve 702, the left end of the discharge valve 702 is communicated with two metering pumps 703, the water outlet of the metering pumps 703 is communicated with a second check valve 704, the top end of the second check valve 704 is communicated with a mass flow meter 705, the right end of the third check valve 706 is communicated with the two mass flow meters 705, the left end of the third check valve 706 is communicated with a water inlet pipe 204, the third check valve 706 is fixedly connected with the bottom end of the deep denitrification reactor equipment body 1, the first check valve 203, the second check valve 704 and the third check valve 706 prevent the water body in the water inlet pipe 204 from flowing back and prevent the sewage lifting pump 202 and the metering pumps 703 from being polluted, the sewage lift pump 202 guides the sewage in the water supply pipe 201 into the water inlet pipe 204, the discharge valve 702 is opened, the carbon source in the carbon source tank 701 is guided into the water inlet pipe 204 by the metering pump 703, the sewage and the carbon source are mixed and then upwards enter the water distributor 205 along the water inlet pipe 204, the sewage and the carbon source are uniformly distributed in the deep denitrification reactor device body 1 by the water distributor 205, the sewage and the carbon source move upwards in the deep denitrification reactor device body 1 from the bottom, the solidified carrier microorganism generator 3 upwards generates microorganisms, the microorganisms generated by the microorganism parent body uniformly enter the combined type filler 5 through the plurality of annular pipes 301 and the through holes in the bearing layer 4, the microorganisms in the combined type filler 5 perform denitrification treatment on the sewage, and the denitrification effect is uniform and effective.

The drainage system 9 comprises a water collection cover 901 and a drainage pipe 905, the bottom of the water collection cover 901 is communicated with a three-way valve 902, the right end of the three-way valve 902 is communicated with a water storage tank 903, the top end of the inner side of the water storage tank 903 is provided with a liquid level meter 904, the bottom end of the three-way valve 902 is communicated with the drainage pipe 905, water subjected to denitrification treatment overflows to the water collection cover 901 from an annular water outlet weir 6, the left end and the right end of the three-way valve 902 are communicated, the bottom end is closed, water flowing out of the water collection cover 901 enters the water storage tank 903 through the three-way valve 902, the liquid level meter 904 is matched with a controller 801 to detect the liquid level height in the water storage tank 903, if the liquid level rises to an upper limit threshold value, the left end and the bottom end of the three-way valve 902 are communicated, the right end is closed, the water is discharged from the drainage pipe 905, if the liquid level in the water storage tank 903 falls to a lower limit threshold value, the left end and the right end of the three-way valve 902 are again communicated, the bottom end is closed again, water in the water storage tank 903 can be used as a solvent for carbon source in the carbon source tank 701, the drainage system 9 can recycle, and is beneficial to environmental protection spirit.

The water collecting cover 901 is fixedly connected to the outer side of the top of the deep denitrification reactor device body 1, the annular water outlet weir 6 is arranged inside the water collecting cover 901, the upper portion of the annular water outlet weir 6 is in a saw-toothed shape, the water body is rectified through the water distributor 205 and the annular water outlet weir 6 with the saw-toothed top, a water distribution area and a clear water area are formed at the bottom and the top of the deep denitrification reactor device body 1 respectively, the water conservancy structure is optimized, it is guaranteed that water flows uniformly pass through the deep denitrification reactor device body 1, and impact load borne by a denitrification reactor is reduced.

The first nitrate ion sensor 802, the first nitrite ion sensor 803 and the first COD sensor 804 are all arranged on the inner side of the bottom of the deep denitrification reactor device body 1, the second nitrate ion sensor 805, the second nitrite ion sensor 806 and the second COD sensor 807 are all arranged on the inner side of the top of the deep denitrification reactor device body 1, the controller 801 is connected with the sewage lifting pump 202, the discharge valve 702, the metering pump 703, the mass flow meter, the three-way valve 902 and the liquid level meter 904 through wireless signals, the controller 801 carries out frequency conversion adjustment on the sewage lifting pump 202, the metering pump 703 and the mass flow meter 705 through information fed back by the first nitrate ion sensor 802, the first nitrite ion sensor 803, the first COD sensor 804, the second nitrate ion sensor 805, the second nitrite ion sensor 806 and the second COD sensor 807, so that front and back multi-stage feedback interlocking control is realized, accurate addition of a carbon source is ensured, and the overproof conditions of COD and total nitrogen of a water discharged from the deep denitrification reactor device body 1 are effectively prevented.

The culture method of the microbial matrix comprises the following steps:

s1, domesticating microorganisms

Inoculating denitrifying bacteria into a culture dish A filled with deionized water, inoculating anaerobic ammonium oxidation bacteria into a culture dish B filled with deionized water, inoculating thiobacillus denitrificans into a culture dish C filled with deionized water, inoculating the denitrifying bacteria in the culture dish A into a plurality of culture bottles A filled with DM culture medium without adding any nutrient substance into the culture dish A, the culture dish B and the culture dish C, inoculating the anaerobic ammonium oxidation bacteria in the culture dish B into a plurality of culture bottles B filled with MSF culture medium, inoculating the thiobacillus denitrificans in the culture dish C into a plurality of culture bottles C filled with thiobacillus denitrificans standard culture medium, adding nitrogen-containing sewage in a sewage treatment plant into the culture bottles A, the culture bottles B and the culture bottles C, placing the culture bottles A, the culture bottles B and the culture bottles C in an anaerobic workstation for anaerobic culture, and after 39 hours, selecting good denitrifying bacteria, good denitrifying bacteria and good denitrifying bacteria from the culture bottles A, the culture bottles B and the culture bottles C;

s2. Symbiotic culture

Adding nitrogen-containing sewage in a sewage treatment plant into a plurality of culture bottles D, inoculating denitrifying bacteria, anaerobic ammonium oxidation bacteria and denitrifying thiobacillus which grow well in S1 into each culture bottle D, adding an organic carbon source and carbonate into each culture bottle D, carrying out symbiotic culture, selecting the culture bottles D with the denitrifying bacteria, the anaerobic ammonium oxidation bacteria and the denitrifying thiobacillus which grow well after 52 hours, inoculating the denitrifying bacteria, the anaerobic ammonium oxidation bacteria and the denitrifying thiobacillus in the culture bottles D into culture tanks filled with the nitrogen-containing sewage, the organic carbon source and the carbonate in the sewage treatment plant for propagation culture, and after 5 days, obtaining a microorganism matrix which is domesticated and cultured symbiotically, has strong dormancy capacity, can carry out multienzyme system synergistic treatment on nitrate nitrogen in the sewage, and ensures the effluent water quality.

The working principle is as follows: sewage and carbon sources are respectively pumped into the deep denitrification reactor equipment body 1 through the water distribution system 2 and the carbon source adding system 7, denitrification treatment is carried out on the sewage through the solidification carrier microorganism generator 3 in cooperation with the combined type filler 5, water discharged from the annular water outlet weir 6 is transferred through the water discharging system 9, the sewage denitrification process is monitored and regulated through the central control system 8, the sewage in the water supply pipe 201 is led into the water inlet pipe 204 through the sewage lifting pump 202, the discharge valve 702 is opened, the carbon source in the carbon source tank 701 is led into the water inlet pipe 204 through the metering pump 703, the sewage and the carbon sources are mixed and then upwards enter the water distributor 205 along the water inlet pipe 204, the sewage and the carbon sources are uniformly distributed in the deep denitrification reactor equipment body 1 through the water distributor 205, the sewage and the carbon sources move upwards from bottom to top in the deep denitrification reactor equipment body 1, and the solidification carrier microorganism generator 3 upwards generates microorganisms, microorganisms generated by microbial parent bodies uniformly enter the combined type packing 5 through the plurality of annular pipes 301 and through holes on the bearing layer 4, the microorganisms in the combined type packing 5 perform denitrification treatment on sewage, a water body subjected to denitrification treatment overflows from the annular water outlet weir 6 to the water collection cover 901, the left end and the right end of the three-way valve 902 are communicated, the bottom end is closed, the water body flowing out of the water collection cover 901 enters the water storage tank 903 through the three-way valve 902, the liquid level gauge 904 is matched with the controller 801 to detect the liquid level height in the water storage tank 903, if the liquid level rises to an upper limit threshold value, the left end and the bottom end of the three-way valve 902 are communicated, the right end is closed, the water body is discharged from the water discharge pipe 905, if the liquid level in the water storage tank 903 falls to a lower limit threshold value, the left end and the right end of the three-way valve 902 are communicated again, the bottom end is closed again, and the sewage is buffered through the annular buffer strip 305 and the annular baffle 304 in the process of the solidified carrier microorganism generator 3, the impact on the microbial parent in the annular carrier 302 is reduced, and in the denitrification process, the controller 801 performs frequency conversion adjustment on the sewage lift pump 202, the metering pump 703 and the mass flow meter 705 through information fed back by the first nitrate ion sensor 802, the first nitrite ion sensor 803, the first COD sensor 804, the second nitrate ion sensor 805, the second nitrite ion sensor 806 and the second COD sensor 807.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims (7)

1. The utility model provides a sewage degree of depth denitrogenation reactor, includes degree of depth denitrogenation reactor equipment body (1) and central control system (8), its characterized in that: the device is characterized in that a water distribution system (2) is arranged at the bottom of the deep denitrification reactor device body (1), a curing carrier microbial generator (3) is fixedly connected to the inner side of the lower part of the deep denitrification reactor device body (1), a bearing layer (4) is arranged on the upper side of the curing carrier microbial generator (3), the bearing layer (4) is fixedly connected to the inner side of the deep denitrification reactor device body (1), a combined filler (5) is arranged at the top end of the bearing layer (4), an annular water outlet weir (6) is fixedly connected to the top end of the deep denitrification reactor device body (1), the water distribution system (2) is communicated with a carbon source feeding system (7), and the deep denitrification reactor device body (1) is communicated with a drainage system (9);

solidification carrier microbial generator (3) includes annular tube (301) and annular buffering strip (305), annular tube (301) inboard is provided with annular carrier (302), annular tube (301) bottom is provided with annular opening (303), the inside and outside both sides of annular opening (303) all are provided with annular baffle (304), center control system (8) include controller (801), controller (801) link to each other through wireless signal and first nitrate ion sensor (802), first nitrite ion sensor (803), first COD sensor (804), second nitrate ion sensor (805), second nitrite ion sensor (806) and second COD sensor (807).

2. The deep denitrification reactor for sewage as claimed in claim 1, wherein: it is adjacent annular pipe (301) link to each other through the connecting rod, and are a plurality of the central line of annular pipe (301) is circular, and is a plurality of the central line coplane of annular pipe (301) and concentric, and the difference of the radius of the central line of adjacent annular pipe (301) equals, and the outside annular pipe (301) link to each other with degree of depth denitrogenation reactor equipment body (1) through the connecting rod, annular carrier (302) inside is provided with the microorganism parent, ring baffle (304) fixed connection is in the bottom of annular pipe (301), the transversal arc of personally submitting of ring baffle (304), annular buffering strip (305) are through connecting rod fixed connection in the inside of annular pipe (301), the top of annular pipe (301) and the inside of supporting layer (4) all are provided with evenly distributed's through-hole.

3. The deep denitrification reactor for wastewater according to claim 1, wherein: the water distribution system (2) comprises a water supply pipe (201) and a water distributor (205), the water supply pipe (201) is communicated with a sewage lifting pump (202), a water outlet of the sewage lifting pump (202) is communicated with a first check valve (203), the top end of the first check valve (203) is fixedly connected with a water inlet pipe (204), the water inlet pipe (204) is communicated with the water distributor (205), the water inlet pipe (204) penetrates through the bottom wall of the deep denitrification reactor equipment body (1), the water distributor (205) is fixedly connected to the bottom end of the inner side of the deep denitrification reactor equipment body (1), the height of the deep denitrification reactor equipment body (1) is 13-16 m, and the diameter of the deep denitrification reactor equipment body (1) is 2.5-3.5 m.

4. The deep denitrification reactor for sewage as claimed in claim 1, wherein: carbon source dosing system (7) includes carbon source jar (701) and third check valve (706), carbon source jar (701) bottom intercommunication has bleeder valve (702), the left end and two measuring pump (703) of bleeder valve (702) communicate, the delivery port intercommunication of measuring pump (703) has second check valve (704), the top intercommunication of second check valve (704) has mass flow meter (705), the right-hand member and two mass flow meter (705) of third check valve (706) communicate, the left end and inlet tube (204) the intercommunication of third check valve (706), third check valve (706) fixed connection is in the bottom of degree of depth denitrification reactor equipment body (1).

5. The deep denitrification reactor for sewage as claimed in claim 1, wherein: the drainage system (9) comprises a water collection cover (901) and a drainage pipe (905), the bottom of the water collection cover (901) is communicated with a three-way valve (902), the right end of the three-way valve (902) is communicated with a water storage tank (903), the top end of the inner side of the water storage tank (903) is provided with a liquid level meter (904), and the bottom end of the three-way valve (902) is communicated with the drainage pipe (905).

6. The deep denitrification reactor for wastewater according to claim 5, wherein: the water collection cover (901) is fixedly connected to the outer side of the top of the deep denitrification reactor device body (1), the annular water outlet weir (6) is arranged inside the water collection cover (901), and the upper portion of the annular water outlet weir (6) is in a sawtooth shape.

7. The deep denitrification reactor for sewage as claimed in claim 1, wherein: the first nitrate ion sensor (802), the first nitrite ion sensor (803) and the first COD sensor (804) are arranged at the inner side of the bottom of the deep denitrification reactor equipment body (1), the second nitrate ion sensor (805), the second nitrite ion sensor (806) and the second COD sensor (807) are arranged at the inner side of the top of the deep denitrification reactor equipment body (1), and the controller (801) is connected with the sewage lifting pump (202), the discharge valve (702), the metering pump (703), the mass flow meter (705), the three-way valve (902) and the liquid level meter (904) through wireless signals.

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