CN209940597U - Device for removing nitrate nitrogen by sulfur-iron coupling technology - Google Patents
Device for removing nitrate nitrogen by sulfur-iron coupling technology Download PDFInfo
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- CN209940597U CN209940597U CN201920281962.7U CN201920281962U CN209940597U CN 209940597 U CN209940597 U CN 209940597U CN 201920281962 U CN201920281962 U CN 201920281962U CN 209940597 U CN209940597 U CN 209940597U
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Abstract
The utility model discloses a device of nitrate nitrogen is got rid of to sulphur iron coupling technique, comprising a pool body, be provided with the filter disc in the cell body, the filter disc is cylindric structure, be provided with the filter cloth on the face of cylinder of filter disc, be provided with central water catch bowl in the middle of the filter disc, the central water catch bowl that is located the filter disc within range is provided with the water hole all around, central water catch bowl and axial-flow pump one end intercommunication, inside the axial-flow pump other end intercommunication cell body, the filter disc passes through the chain and is connected with drive arrangement, be provided with graininess denitrogenation filler in the filter disc, be provided with the controller on the outer wall of cell body, be provided with the gap on the lateral wall of cell body one end, through setting up the disciform filtering pond, continuously mix the filler.
Description
Technical Field
The utility model relates to an application field of water treatment technology, in particular to a device for removing nitrate nitrogen by a sulfur-iron coupling technology.
Background
Research shows that nitrogen is one of the main factors causing water eutrophication, and the reduction of nitrogen content in water is important in the treatment of water eutrophication. The traditional denitrification technology is biological nitrification and denitrification, but the denitrification of the technology needs to consume a large amount of soluble organic matters, namely carbon sources, while the carbon sources of landscape water bodies are seriously insufficient, and the denitrification effect is extremely poor. In recent years, the autotrophic denitrification technology attracts much attention, and compared with the traditional denitrification technology, the autotrophic denitrification technology does not need an additional carbon source and has the advantage of saving cost. At present, most of domestic and overseas researches are carried out on a sulfur/limestone autotrophic denitrification (SLAD) system, which can utilize reduced sulfur as an electron donor under the anoxic or anaerobic condition, obtain energy through the redox sulfur, and reduce nitrate as an electron acceptor into nitrogen so as to realize the autotrophic denitrification process.
However, the consumption of sulfur as a raw material is overlarge by the prior art, and the sulfate ions in the effluent are higher, so that the secondary pollution of the system is serious, in addition, the reaction is slowly started due to the low proliferation rate of autotrophic microorganisms, the hydraulic retention time is overlong, and the engineering value of practical application is not available, and the autotrophic microorganisms take inorganic carbon as a carbon source, so that the consumption of organic carbon sources can be effectively avoided, and the yield of residual sludge and the emission of carbon dioxide are reduced. Meanwhile, in the prior art, the filler is filled into an autotrophic biological reactor layer by layer, simultaneously, domesticated activated sludge is inoculated into the reactor, sewage containing nitrate is sequentially introduced into the reactor, and the reactor is kept stand.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a can make nitrate nitrogen get rid of the device that packs and obtain make full use of, through setting up the disc filtering pond, continuously stir the packing, guarantee the make full use of that packs.
In order to solve the technical problem, the utility model provides a device of nitrate nitrogen is got rid of to sulphur iron coupling technique, which comprises a tank body, be provided with the filter disc in the cell body, the filter disc is cylindric structure, be provided with the filter cloth on the face of cylinder of filter disc, be provided with central water catch bowl in the middle of the filter disc, be located the filter disc within range central water catch bowl is provided with the water hole all around, central water catch bowl and axial-flow pump one end intercommunication, the axial-flow pump other end intercommunication inside the cell body, the filter disc passes through the chain and is connected with drive arrangement, be provided with graininess denitrogenation filler in the filter disc, be provided with the controller on the outer wall of cell body, be provided with the gap on the lateral wall of cell.
Further, the filler comprises sulfur particles, limestone particles, pyrite particles and denitrifying bacteria immobilized particles.
Further, the diameter of the water through hole is smaller than that of the filler.
Further, the axial-flow pump pumps the sewage in the filter disc into the tank body, filter screens are arranged on the periphery of the central water collecting cylinder and located in the range of the filter disc, and the diameter of meshes of the filter screens is smaller than that of the filler.
Furthermore, the lower extreme of cell body is provided with mud valve and backwash water valve, and the backwash water valve is connected with the backwash water pump, and the cell body upper end is provided with the backwash water pipe.
Further, the axial-flow pump pumps the sewage in the tank body into the filter disc.
Further, the filler accounts for 75-85% of the volume of the filter disc.
Furthermore, two end faces of the filter disc are made of magnesium-aluminum alloy.
Further, the filter disc is provided with a plurality of filter discs.
Furthermore, the central water collecting cylinder is made of a martensitic stainless steel material.
The utility model discloses a device that ferrosulfur coupling technique got rid of nitrate nitrogen compares with prior art's beneficial effect is, through setting up the disc filtering pond, continuously mixs to the filler, guarantees the make full use of filler, conveniently demolishs the filter cloth simultaneously, carries out the change of filter cloth and filler.
Drawings
Fig. 1 is a schematic view of an overall structure of an embodiment of the present invention;
FIG. 2 is a sectional view of the filter disc structure of the present invention;
fig. 3 is a schematic view of the overall structure of the second embodiment of the present invention.
Detailed Description
The present invention is further described with reference to the following drawings and specific embodiments so that those skilled in the art can better understand the present invention and can implement the present invention, but the embodiments are not to be construed as limiting the present invention.
Referring to fig. 1, a first embodiment of a device for removing nitrate nitrogen by a sulfur-iron coupling technology of the present invention includes a tank body 1, a filter disc 2 is disposed in the tank body 1, sewage fills the tank body 1, the filter disc 2 is immersed in the sewage, the filter disc 2 is a cylindrical structure, the filter disc 2 can rotate around a central shaft, a filter cloth 3 is disposed on a cylindrical surface of the filter disc 2, the sewage can enter the filter disc 2 or the tank body 1 through the filter cloth 3, a central water collecting cylinder 4 is disposed in the middle of the filter disc 2, water holes 5 are disposed around the central water collecting cylinder 4 within the range of the filter disc 2, the water holes 5 communicate with the central water collecting cylinder 4 and an inner space of the filter disc 2, the central water collecting cylinder 4 communicates with one end of an axial flow pump 6, the other end of the axial flow pump 6 communicates with the inside of the tank body 1, the axial flow pump 6 continuously exchanges the sewage in the tank body 1 with the sewage, granular denitrification fillers 7 are arranged in the filter disc 2, the sewage in the tank body 1 is continuously contacted with the denitrification fillers 7 through exchange of the axial flow pump 6 to carry out denitrification treatment, the filter disc 2 is connected with the driving device 8 through a chain, the driving device 8 drives the filter disc 2 to rotate, the fillers 7 and the sewage in the filter disc 2 are stirred due to rotation of the filter disc 2, on one hand, the fillers 7 are uniformly mixed, on the other hand, the fillers 7 are fully contacted with the sewage, the utilization rate of the fillers 7 is high, in order to ensure that the fillers 7 can be fully stirred, the volume of the fillers 7 accounts for 75-85% of the volume of the filter disc 2, in the embodiment, in order to prevent the fillers 7 from flowing out of the water through holes 5 of the central water collecting barrel, the diameter of the water through holes 5 is set to be smaller than that of the fillers 7, further, in the embodiment, after the sewage containing tank body 1 is immersed in the, sewage enters the filter disc 2 through the filter cloth 3 and reacts with the filler 7 in the filter disc 2 to remove nitrate nitrogen, then the axial flow pump 6 pumps the reacted sewage in the filter disc 2 into the tank body 1, the unreacted sewage in the tank body 1 enters the filter disc 2 through the filter cloth 3 along with the reduction of the sewage in the filter disc 2 and reacts again, sludge in the sewage is blocked by the filter cloth 3, the lower end of the tank body 1 is provided with a sludge discharge valve 9 and a backwashing water valve 10, the backwashing water valve 10 is connected with a backwashing water pump 11, the upper end of the tank body 1 is provided with a backwashing water pipe, the backwashing water pump 11 can be started along with the accumulation of the sludge on the filter cloth 3, the cleaning process is started, the backwashing time and the period can be adjusted, the sludge on the filter cloth 3 passes through the backwashing water pump 11 and is discharged out of a plant area drainage system through the backwashing water valve 10, as shown in figure 2, in order to prevent the axial, the filler 7 blocks the water through holes 5, the filter screens 12 are arranged around the central water collecting cylinder 4 within the range of the filter disc 2, the diameter of the meshes of the filter screens 12 is smaller than that of the filler 7, so that the particles of the filler 7 are prevented from being blocked outside the filter screens 12, sewage water can smoothly pass through the water through holes 5, the outer wall of the tank body 1 is provided with the controller 13, on one hand, as part of sludge is generated in the process of removing nitrate nitrogen and is attached to the filter cloth 3, the filter disc 2 is continuously increased in weight, the torsion of the driving device 8 is increased, when a certain degree is reached, the controller 13 controls the driving device 8 to stop, the filter disc 2 is replaced or treated in other modes, on the other hand, after the sewage in the tank body 1 reacts with the filler 7 in the filter disc 2 for a certain time, the controller 13 controls the driving device 8 to stop, the upper part of the side wall at one end of the tank, the treated sewage is discharged from the overflow 14.
Referring to fig. 3, an embodiment of the present invention includes a tank body 1, a filter disc 2 is disposed in the tank body 1, sewage is filled in the tank body 1, the filter disc 2 is immersed in the sewage, the filter disc 2 has a cylindrical structure, the filter disc 2 can rotate around a central shaft, a filter cloth 3 is disposed on a cylindrical surface of the filter disc 2, the sewage can enter the filter disc 2 or the tank body 1 through the filter cloth 3, a central water collecting cylinder 4 is disposed in the middle of the filter disc 2, water holes 5 are disposed around the central water collecting cylinder 4 within the range of the filter disc 2, the water holes 5 communicate with the central water collecting cylinder 4 and an inner space of the filter disc 2, the central water collecting cylinder 4 communicates with one end of an axial flow pump 6, the other end of the axial flow pump 6 communicates with the inside of the tank body 1, the axial flow pump 6 continuously exchanges the sewage in the tank body 1 with the sewage in the filter disc 2, a granular denitrification filler 7, the filler 7 comprises sulfur particles, limestone particles, pyrite particles and denitrifying bacteria immobilized particles, autotrophic denitrifying bacteria utilize limestone to synthesize cells, pyrite serves as an electron donor for nitrate reduction, so that a denitrification process is completed, denitrifying bacteria immobilized particles provide denitrifying bacteria, wastewater denitrification is completed, exchange of the axial flow pump 6 enables sewage in the pool body 1 to continuously contact with the denitrifying filler 7, denitrification is thorough, the filter disc 2 is connected with the driving device 8 through a chain, the driving device 8 drives the filter disc 2 to rotate, due to rotation of the filter disc 2, the filler 7 and the sewage in the filter disc 2 are stirred, on one hand, the filler 7 is uniformly mixed, on the other hand, the filler 7 is fully contacted with the sewage, the utilization rate of the filler 7 is high, in the embodiment, in order to prevent the filler 7 from flowing out of the water through holes 5 of the central water collecting barrel, the diameter of the water through holes 5 is set to be smaller than that of the filler 7, furthermore, in this embodiment, after the sewage is filled in the tank body 1, the filter discs 2 are immersed in the sewage, the axial-flow pump 6 pumps the sewage in the tank body 1 into the filter discs 2, and the sludge carried by the sewage and the sludge generated after the sewage reacts with the filler 7 can be filtered inside the filter discs 2 by the filter cloth 3, so as to facilitate the unified treatment, that is, the device of the present application has flexible water inlet, can select the water inlet direction as required, and can quickly treat the sewage in the tank body 1, a plurality of filter discs 2 can be provided, in this embodiment, 4 filter discs 2 are provided, two end faces of each filter disc 2 are made of aluminum magnesium alloy, so that not only can the strength of the filter discs 2 be ensured, but also the weight of the filter discs 2 can be reduced, so that the whole device can be suspended in the water more easily, and meanwhile, the central water collecting cylinder 4 is made of martensitic stainless steel material, so that the performance is stable, impact load resistance, difficult deformation, good flushing effect, no need of frequent replacement and reduced production cost.
The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. Equivalent substitutes or changes made by the technical personnel in the technical field on the basis of the utility model are all within the protection scope of the utility model. The protection scope of the present invention is subject to the claims.
Claims (10)
1. The device for removing nitrate nitrogen by using the sulfur-iron coupling technology is characterized by comprising a tank body, wherein a filter disc is arranged in the tank body, the filter disc is of a cylindrical structure, filter cloth is arranged on the cylindrical surface of the filter disc, a central water collecting barrel is arranged in the middle of the filter disc, water through holes are formed in the periphery of the central water collecting barrel and located in the range of the filter disc, the central water collecting barrel is communicated with one end of an axial flow pump, the other end of the axial flow pump is communicated with the inside of the tank body, the filter disc is connected with a driving device through a chain, granular denitrification fillers are arranged in the filter disc, a controller is arranged on the outer wall of the tank body, and an overflow port is formed in the side.
2. The apparatus for removing nitrate nitrogen by the sulfur-iron coupling technology as claimed in claim 1, wherein the filler comprises sulfur particles, limestone particles, pyrite particles and denitrifying bacteria immobilized particles.
3. The apparatus for removing nitrate nitrogen by the coupling technique of sulfur and iron as claimed in claim 1, wherein the diameter of the water through holes is smaller than that of the filler.
4. The device for removing nitrate nitrogen by the sulfur-iron coupling technology as claimed in claim 1, wherein the axial flow pump pumps the sewage in the filter disc into the tank body, a filter screen is arranged around the central water collecting cylinder in the range of the filter disc, and the diameter of the mesh of the filter screen is smaller than that of the filler.
5. The device for removing nitrate nitrogen by the sulfur-iron coupling technology as claimed in claim 4, wherein the lower end of the tank body is provided with a sludge discharge valve and a backwashing water valve, the backwashing water valve is connected with a backwashing water pump, and the upper end of the tank body is provided with a backwashing water pipe.
6. The apparatus for removing nitrate nitrogen by the sulfur-iron coupling technology as claimed in claim 1, wherein the axial flow pump pumps the sewage in the tank body into the filter disc.
7. A device for removing nitrate nitrogen by a ferrosulfur coupling technique as claimed in claim 1, wherein the volume of the filler is 75-85% of the volume of the filter disc.
8. The device for removing nitrate nitrogen by the sulfur-iron coupling technology as claimed in claim 1, wherein two end faces of the filter disc are made of magnesium-aluminum alloy.
9. The apparatus for removing nitrate nitrogen by the coupling technique of sulfur and iron as claimed in claim 1, wherein said filter disc is provided in plurality.
10. The apparatus for removing nitrate nitrogen by the sulfur-iron coupling technology as claimed in claim 1, wherein said central water collecting cylinder is made of martensitic stainless steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920281962.7U CN209940597U (en) | 2019-03-06 | 2019-03-06 | Device for removing nitrate nitrogen by sulfur-iron coupling technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920281962.7U CN209940597U (en) | 2019-03-06 | 2019-03-06 | Device for removing nitrate nitrogen by sulfur-iron coupling technology |
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| CN209940597U true CN209940597U (en) | 2020-01-14 |
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| CN201920281962.7U Active CN209940597U (en) | 2019-03-06 | 2019-03-06 | Device for removing nitrate nitrogen by sulfur-iron coupling technology |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109721154A (en) * | 2019-03-06 | 2019-05-07 | 苏州方舟环保科技有限公司 | A kind of device of sulphur iron coupling technique removal nitrate nitrogen |
| CN118026408A (en) * | 2024-04-11 | 2024-05-14 | 四川发展环境科学技术研究院有限公司 | System and method for removing nitrogen and phosphorus in sewage by iron ion driven denitrification-anaerobic ammoxidation |
-
2019
- 2019-03-06 CN CN201920281962.7U patent/CN209940597U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109721154A (en) * | 2019-03-06 | 2019-05-07 | 苏州方舟环保科技有限公司 | A kind of device of sulphur iron coupling technique removal nitrate nitrogen |
| CN118026408A (en) * | 2024-04-11 | 2024-05-14 | 四川发展环境科学技术研究院有限公司 | System and method for removing nitrogen and phosphorus in sewage by iron ion driven denitrification-anaerobic ammoxidation |
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Denomination of utility model: Apparatus for removing nitrate nitrogen by sulfur-iron coupling technology Effective date of registration: 20200521 Granted publication date: 20200114 Pledgee: Suzhou Rongfeng Technology Microfinance Co., Ltd. Pledgor: SUZHOU ARK ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. Registration number: Y2020320010036 |