CN111056633A - Double-sulfur method autotrophic denitrification denitrogenation method and double-sulfur method autotrophic denitrification pool - Google Patents
Double-sulfur method autotrophic denitrification denitrogenation method and double-sulfur method autotrophic denitrification pool Download PDFInfo
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- 229910052717 sulfur Inorganic materials 0.000 title claims abstract description 162
- 239000011593 sulfur Substances 0.000 title claims abstract description 162
- 230000001651 autotrophic effect Effects 0.000 title claims abstract description 64
- 238000000034 method Methods 0.000 title claims abstract description 34
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 139
- 239000007788 liquid Substances 0.000 claims abstract description 127
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 94
- 239000007787 solid Substances 0.000 claims abstract description 52
- 238000006243 chemical reaction Methods 0.000 claims abstract description 47
- 239000010865 sewage Substances 0.000 claims abstract description 19
- 241000894006 Bacteria Species 0.000 claims abstract description 10
- 239000008213 purified water Substances 0.000 claims abstract description 6
- 238000006276 transfer reaction Methods 0.000 claims description 71
- 238000005192 partition Methods 0.000 claims description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 8
- -1 sulfur ion Chemical class 0.000 claims description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 claims description 3
- 150000002500 ions Chemical class 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 229940006280 thiosulfate ion Drugs 0.000 claims description 3
- DHCDFWKWKRSZHF-UHFFFAOYSA-L thiosulfate(2-) Chemical compound [O-]S([S-])(=O)=O DHCDFWKWKRSZHF-UHFFFAOYSA-L 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims 1
- 229910002651 NO3 Inorganic materials 0.000 abstract description 11
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 abstract description 11
- 239000002351 wastewater Substances 0.000 description 13
- 244000005700 microbiome Species 0.000 description 4
- 239000002699 waste material Substances 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 2
- MMDJDBSEMBIJBB-UHFFFAOYSA-N [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] Chemical compound [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] MMDJDBSEMBIJBB-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000813 microbial effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 150000003464 sulfur compounds Chemical class 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
- C02F3/2866—Particular arrangements for anaerobic reactors
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
- C02F3/345—Biological treatment of water, waste water, or sewage characterised by the microorganisms used for biological oxidation or reduction of sulfur compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/101—Sulfur compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
- C02F2101/163—Nitrates
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- Life Sciences & Earth Sciences (AREA)
- Microbiology (AREA)
- Biodiversity & Conservation Biology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The invention discloses a dual-sulfur autotrophic denitrification denitrogenation method and a dual-sulfur autotrophic denitrification tank, wherein a liquid sulfur source and a solid sulfur source are respectively added into the sulfur autotrophic denitrification tank, sewage enters the sulfur autotrophic denitrification tank from a water inlet pipe, autotrophic denitrifying bacteria respectively use the liquid sulfur source and the solid sulfur source as electron donors to carry out liquid-liquid mass transfer denitrification reaction and solid-liquid mass transfer denitrification reaction, purified water after denitrification reaction is discharged from a water outlet, the nitrification tank comprises a tank body, a water inlet pipe, a liquid sulfur source dosing pipe and a solid sulfur source bed, water inlets and water outlets are arranged at two ends of the tank body, the water inlet pipe and a liquid sulfur source dosing pipe are communicated with the water inlet of the tank body, the solid sulfur source bed is fixedly arranged in the tank body, and the solid sulfur source bed completely covers the cross section of a sewage flow passage in the tank body, the invention can effectively ensure that nitrate is rapidly removed and simultaneously ensure that the sulfur autotrophic denitrification process at the later stage can be continuously and stably carried out, and the nitrate concentration and the COD concentration of the effluent can be ensured not to exceed the standard.
Description
Technical Field
The invention relates to the technical field of wastewater treatment, in particular to a dual-sulfur autotrophic denitrification method and a dual-sulfur autotrophic denitrification tank.
Background
Sulfur autotrophic denitrification is a process that can convert sulfur as an electron donor, nitrate as an electron acceptor, and finally to sulfate and nitrogen, respectively. The sulfur reserves in the nature are abundant and cheap, and the process is chemoautotrophic reaction with low sludge yield, so the sulfur autotrophic denitrification is a more economic denitrification method. At present, most of sulfur autotrophic denitrification reactions stay in reactions taking elemental sulfur as a sulfur source, and the elemental sulfur in the elemental sulfur denitrification process cannot be excessively released, so that self-adaptive fluctuation resistance can be formed for the fluctuation of the water quality of inlet water, and the nitrate concentration and the COD concentration of outlet water cannot exceed standards. Since the whole reaction process is a solid-liquid reaction and only develops on the surface of elemental sulfur, even if the elemental sulfur has a larger specific surface, the reaction rate is far inferior to the ionic reaction in the solution. The speed is low, and the industrial application has a great problem.
Researchers use heterotrophic denitrification in cooperation with sulfur autotrophic denitrification to overcome the problem of denitrification rate in the sulfur autotrophic process, the heterotrophic denitrification is used for ensuring basic nitrate nitrogen load, and the sulfur autotrophic denitrification is used for dealing with the impact load of nitrate nitrogen in sewage. The method can ensure that the nitrate in the effluent can be quickly removed and can resist impact to a certain degree, and the COD concentration of the effluent can be effectively controlled. In a heterotrophic denitrification-sulfur autotrophic denitrification coupling reaction system, two microbial communities can form space competition in the same space, and because the propagation speed of sulfur autotrophic denitrifying bacteria is low, the sulfur autotrophic denitrifying bacteria are usually deleted due to the vigorous growth of other microorganisms, so that the whole denitrification system cannot be maintained for a long time.
Disclosure of Invention
In order to overcome the defects, the invention provides a dual-sulfur autotrophic denitrification method and a dual-sulfur autotrophic denitrification pool.
The invention adopts the technical scheme for solving the technical problems of the invention: a dual-sulfur method for autotrophic denitrification of nitrogen is characterized by that the liquid sulfur source and solid sulfur source are respectively added in the sulfur autotrophic denitrification pool, the sewage is fed into the sulfur autotrophic denitrification pool from water inlet pipe, the autotrophic denitrifying bacteria respectively use the liquid sulfur source and solid sulfur source as electron donor to make liquid-liquid mass transfer denitrification reaction and solid-liquid mass transfer denitrification reaction, and the clean water after denitrification reaction is finally discharged from water outlet.
As a further improvement of the invention, the liquid sulfur source is any one or combination of more of S2- (sulfur ion), sulfite ion, tetrasulfate ion, dithionite ion (S2O42-) and thiosulfate ion (S2O32-), and the solid sulfur source is elemental sulfur.
As a further improvement of the invention, a liquid-liquid mass transfer reaction area and a solid-liquid mass transfer reaction area are sequentially formed in the sulfur autotrophic denitrification pool along the flowing direction of the sewage, the sewage firstly passes through the liquid-liquid mass transfer reaction area to carry out the denitrification reaction of the first stage by taking a liquid sulfur source as an electron donor, and then enters the solid-liquid mass transfer reaction area to carry out the denitrification reaction of the second stage by taking a solid sulfur source as an electron donor.
As a further improvement of the invention, a mixed mass transfer reaction area is formed by mixing a liquid sulfur source and a solid sulfur source in the sulfur autotrophic denitrification pool, and the sewage is subjected to denitrification reaction in the mass transfer reaction area by taking the liquid and solid mixed sulfur source as an electron donor.
A dual-sulfur autotrophic denitrification pool comprises a pool body, a water inlet pipe, a liquid sulfur source dosing pipe and a solid sulfur source bed, wherein one end of the pool body is provided with a water inlet and a water outlet, the water inlet pipe and the liquid sulfur source dosing pipe are both communicated with the water inlet of the pool body, the other end of the pool body is provided with a water outlet, the solid sulfur source bed is fixedly arranged in the pool body, and the solid sulfur source bed completely covers the cross section of a sewage flow channel in the pool body.
As a further improvement of the invention, a clapboard is fixedly arranged in the tank body and divides the tank body into a liquid-liquid mass transfer reaction zone and a solid-liquid mass transfer reaction zone, the solid sulfur source bed is fixedly arranged in the solid-liquid mass transfer reaction zone, the water inlet pipe and the liquid sulfur source dosing pipe are positioned at the water inlet end of the liquid-liquid mass transfer reaction zone, the water outlet end of the liquid-liquid mass transfer reaction zone is communicated with the water inlet end of the solid-liquid mass transfer reaction zone, and the water outlet is positioned at the water outlet end of the solid-liquid mass transfer reaction zone.
As a further improvement of the invention, a stirrer is also arranged in the liquid-liquid mass transfer reaction zone.
As a further improvement of the invention, the partition plate extends longitudinally, a channel for liquid flowing is formed between the lower end of the partition plate and the bottom of the tank body, the liquid-liquid mass transfer reaction zone and the solid-liquid mass transfer reaction zone are respectively positioned at the left side and the right side of the partition plate, and the water inlet and the water outlet of the tank body are respectively positioned on the upper side wall of the two opposite side walls of the tank body along the liquid flowing direction.
As a further improvement of the invention, the water inlet of the tank body is positioned at the lower end of one side of the tank body, the water outlet of the tank body is positioned at the upper end of the other side of the tank body, the solid sulfur source bed is fixedly arranged in the tank body and completely covers the cross section of the tank body, and a liquid-liquid mass transfer reaction zone is formed between the solid sulfur source bed and the bottom of the tank body.
As a further improvement of the invention, a return pipe is also arranged on the side wall of the tank body, which is positioned at the upper end of the solid sulfur source bed, the return pipe is communicated with a water inlet of the tank body, and the height of the water inlet of the return pipe is lower than that of the water outlet.
The invention has the beneficial effects that: in the invention, the two denitrification processes are sulfur autotrophic denitrification, the colony population difference of microorganisms is not obvious, and spatial competition is not easy to form, so that the nitrate is effectively and quickly removed, and the continuous and stable operation of the sulfur autotrophic denitrification process at the later stage is ensured; in addition, because of the support of sulfur autotrophic denitrifying bacteria at the front end, the reaction microorganism amount of the elemental sulfur denitrification section is more, so that the whole reaction process is accelerated, meanwhile, the denitrifying bacteria population corresponding to the dual-sulfur method is richer, the community structure is more stable, the impact resistance is stronger than that of the single-sulfur method, and meanwhile, the elemental sulfur in the dual-sulfur method can also form self-adaptive anti-fluctuation capability to the fluctuation of the water quality of inlet water, so that the nitrate concentration and the COD concentration of outlet water cannot exceed the standard.
Drawings
FIG. 1 is a structural diagram of a two-stage type dual-sulfur autotrophic denitrification tank of the present invention;
FIG. 2 is a structural diagram of the mixed type double-sulfur autotrophic denitrification pool of the present invention.
Liquid sulfur source dosing pipe-1 water inlet pipe-2 liquid-liquid mass transfer reaction area-3 stirrer-4 solid sulfur source bed-5 solid-liquid mass transfer reaction area-6 water outlet, 7 effluent weir-8 separation plate-9 return pipe-10
Detailed Description
Example (b): a double-sulfur method autotrophic denitrification denitrogenation method is characterized in that a liquid sulfur source and a solid sulfur source are respectively added into a sulfur autotrophic denitrification tank, sewage enters the sulfur autotrophic denitrification tank from a water inlet pipe 2, autotrophic denitrifying bacteria respectively use the liquid sulfur source and the solid sulfur source as electron donors to carry out liquid-liquid mass transfer denitrification reaction and solid-liquid mass transfer denitrification reaction, and purified water after denitrification reaction is finally discharged from a water outlet 7.
According to the method, through the denitrification process of liquid-liquid mass transfer, elemental sulfur autotrophic denitrification is combined in the system, two denitrification processes in the sulfur autotrophic denitrification pool with a liquid sulfur source and a solid sulfur source as electron donors are sulfur autotrophic denitrification, the colony population difference of microorganisms is not obvious, and spatial competition is not easy to form, so that the rapid removal of nitrate is effectively ensured, and the continuous and stable operation of the sulfur autotrophic denitrification process at the later stage is ensured.
The liquid sulfur source is any one or combination of more of S2- (sulfur ion), sulfite ion, tetrasulfame ion, dithionite ion (S2O42-) and thiosulfate ion (S2O32-), and the solid sulfur source is sulfur simple substance. The sulfur denitrifying bacteria respectively oxidize elemental sulfur and sulfur compounds into sulfate and simultaneously reduce nitrate into nitrogen, thereby realizing the denitrification reaction.
A liquid-liquid mass transfer reaction area 3 and a solid-liquid mass transfer reaction area 6 are sequentially formed in the sulfur autotrophic denitrification tank along the flowing direction of sewage, the sewage firstly passes through the liquid-liquid mass transfer reaction area 3 to carry out the denitrification reaction of the first stage by taking a liquid sulfur source as an electron donor, and then enters the solid-liquid mass transfer reaction area 6 to carry out the denitrification reaction of the second stage by taking a solid sulfur source as an electron donor. The sewage firstly carries out liquid-liquid mass transfer denitrification reaction by taking a liquid sulfur source as an electron donor in a liquid-liquid mass transfer reaction zone 3, and then enters a solid-liquid mass transfer reaction zone 6 to carry out solid-liquid mass transfer denitrification reaction by taking a solid sulfur source as an electron donor.
The sulfur autotrophic denitrification pool is internally mixed with a liquid sulfur source and a solid sulfur source to form a mixed mass transfer reaction zone, and sewage is subjected to denitrification reaction in the mass transfer reaction zone by taking the liquid and solid mixed sulfur source as an electron donor. The wastewater is subjected to liquid-liquid mass transfer reaction and solid-liquid mass transfer reaction in the sulfur autotrophic denitrification tank at the same time, so that the whole reaction process is accelerated, self-adaptive fluctuation resistance can be formed for the fluctuation of the quality of the inlet water, and the concentration of nitrate and the concentration of COD in the outlet water can not exceed the standard.
A double-sulfur-method autotrophic denitrification pool comprises a pool body, a water inlet pipe 2, a liquid sulfur source dosing pipe 1 and a solid sulfur source bed 5, wherein a water inlet is formed in one end of the pool body, the water inlet pipe 2 and the liquid sulfur source dosing pipe 1 are both communicated with the water inlet of the pool body (the water inlet pipe 2 and the liquid sulfur source dosing pipe 1 are optimally combined outside the pool body and communicate with each other through a certain distance to reach the water inlet of the pool body), a water outlet 7 is formed in the other end of the pool body, the solid sulfur source bed 5 is fixedly installed in the pool body, and the solid sulfur source bed 5 completely covers the cross section of a sewage flow channel in the. The wastewater and the liquid sulfur source enter the tank together, the wastewater and the liquid sulfur source are mixed and then undergo liquid-liquid mass transfer reaction, meanwhile, the wastewater flows to the solid sulfur source bed 5 and undergoes solid-liquid mass transfer reaction with the solid sulfur source, the wastewater is discharged from the water outlet 7 after the reaction is finished, and the water outlet weir 8 is optimally arranged on the water outlet 7 for water drainage.
A partition plate 9 is fixedly arranged in the tank body, the partition plate 9 divides the interior of the tank body into a liquid-liquid mass transfer reaction zone 3 and a solid-liquid mass transfer reaction zone 6, a solid sulfur source bed 5 is fixedly arranged in the solid-liquid mass transfer reaction zone 6, a water inlet pipe 2 and a liquid sulfur source dosing pipe 1 are positioned at the water inlet end of the liquid-liquid mass transfer reaction zone 3, the water outlet end of the liquid-liquid mass transfer reaction zone 3 is communicated with the water inlet end of the solid-liquid mass transfer reaction zone 6, and a water outlet 7 is positioned at the water outlet end of the solid-liquid mass transfer reaction zone 6. The inside of the tank body is divided into two relatively independent reaction areas of a liquid-liquid mass transfer reaction area 3 and a solid-liquid mass transfer reaction area 6 through a partition plate 9, wastewater is firstly subjected to liquid-liquid mass transfer reaction in the tank body and then enters a solid sulfur source bed 5 to be subjected to solid-liquid mass transfer reaction to form two-stage denitrification reaction, and the reaction mode is supported by sulfur autotrophic denitrifying bacteria at the first stage, so that the reaction microbial quantity of a simple substance sulfur denitrification stage is more, and the whole reaction process is accelerated.
And a stirrer 4 is also arranged in the liquid-liquid mass transfer reaction zone 3. Through the arrangement of the stirrer 4, the liquid sulfur source in the liquid-liquid mass transfer reaction zone 3 is uniformly distributed in the wastewater, and the efficient and sufficient reaction is realized.
The baffle plate 9 extends along the longitudinal direction, a channel for liquid flowing is formed between the lower end of the baffle plate 9 and the bottom of the tank body, the liquid-liquid mass transfer reaction zone 3 and the solid-liquid mass transfer reaction zone 6 are respectively positioned at the left side and the right side of the baffle plate 9, and the water inlet and the water outlet 7 of the tank body are respectively positioned on the upper side wall of the two opposite side walls of the tank body along the liquid flowing direction. A channel for communicating the liquid-liquid mass transfer reaction zone 3 with the solid-liquid mass transfer reaction zone 6 is formed between the lower end of the partition plate 9 and the bottom plate of the tank body, when waste liquid enters the tank body from the upper end, denitrification reaction is carried out while flowing downwards, when the waste liquid fully reacts, the waste liquid just reaches the bottom of the tank body and flows into the solid-liquid mass transfer reaction zone 6, solid-liquid mass transfer reaction is carried out through the solid-state sulfur bed, and the waste water flows fully under the action of pressure from bottom to top and is discharged from a water outlet 7 at the upper end of the tank body after reaction.
The water inlet of the tank body is positioned at the lower end of one side of the tank body, the water outlet 7 of the tank body is positioned at the upper end of the other side of the tank body, the solid sulfur source bed 5 is fixedly arranged in the tank body and completely covers the cross section of the tank body, and a liquid-liquid mass transfer reaction zone 3 is formed between the solid sulfur source bed 5 and the bottom of the tank body. The wastewater with the structure enters from the lower end of the tank body, the wastewater and the liquid sulfur source flow in the same direction of the solid sulfur source bed while carrying out liquid-liquid mass transfer reaction at the bottom of the tank body, the solid sulfur source and the liquid sulfur source are not separated to form a mixed reaction zone, the wastewater simultaneously carries out liquid-liquid mass transfer reaction and solid-liquid mass transfer reaction in the mixed reaction zone, and purified water is discharged after the reaction is finished.
The tank body is also provided with a return pipe 10 on the side wall of the upper end of the solid sulfur source bed 5, the return pipe 10 is communicated with a water inlet of the tank body, and the height of the water inlet of the return pipe 10 is lower than that of a water outlet. The denitrified purified water flows back to the water inlet of the tank body through the return pipe 10 to be mixed with the wastewater and the liquid sulfur source and then enters the tank body, the concentration of the wastewater can be reduced through the purified water backflow, the denitrification reaction is accelerated, and the nitrate concentration and the COD concentration of the discharged water can be ensured not to exceed the standard.
Claims (10)
1. A double-sulfur autotrophic denitrification method is characterized in that: respectively adding a liquid sulfur source and a solid sulfur source into a sulfur autotrophic denitrification tank, feeding sewage into the sulfur autotrophic denitrification tank from a water inlet pipe, respectively using the liquid sulfur source and the solid sulfur source as electron donors to carry out liquid-liquid mass transfer denitrification reaction and solid-liquid mass transfer denitrification reaction by autotrophic denitrifying bacteria, and finally discharging purified water after the denitrification reaction from a water outlet.
2. The dual-sulfur autotrophic denitrification process according to claim 1, wherein: the liquid sulfur source is any one or combination of more of S2- (sulfur ion), sulfite ion, tetrasulfame ion, dithionite ion (S2O42-) and thiosulfate ion (S2O32-), and the solid sulfur source is sulfur simple substance.
3. The dual-sulfur autotrophic denitrification process according to claim 1, wherein: a liquid-liquid mass transfer reaction area and a solid-liquid mass transfer reaction area are sequentially formed in the sulfur autotrophic denitrification pool along the flowing direction of sewage, the sewage firstly passes through the liquid-liquid mass transfer reaction area to carry out the first-stage denitrification reaction by taking a liquid sulfur source as an electron donor, and then enters the solid-liquid mass transfer reaction area to carry out the second-stage denitrification reaction by taking a solid sulfur source as an electron donor.
4. The dual-sulfur autotrophic denitrification process according to claim 1, wherein: the sulfur autotrophic denitrification pool is internally mixed with a liquid sulfur source and a solid sulfur source to form a mixed mass transfer reaction zone, and sewage is subjected to denitrification reaction in the mass transfer reaction zone by taking the liquid and solid mixed sulfur source as an electron donor.
5. A dual-sulfur autotrophic denitrification tank for use in the dual-sulfur autotrophic denitrification nitrogen removal method according to claim 1, characterized in that: the device comprises a pool body, a water inlet pipe (2), a liquid sulfur source dosing pipe (1) and a solid sulfur source bed (5), wherein a water inlet is formed in one end of the pool body, the water inlet pipe and the liquid sulfur source dosing pipe are communicated with the water inlet of the pool body, a water outlet (7) is formed in the other end of the pool body, the solid sulfur source bed is fixedly installed in the pool body, and the solid sulfur source bed completely covers the cross section of a sewage flow channel in the pool body.
6. The dual-sulfur autotrophic denitrification tank according to claim 5, wherein: a partition plate (9) is fixedly arranged in the tank body, the partition plate divides the interior of the tank body into a liquid-liquid mass transfer reaction area (3) and a solid-liquid mass transfer reaction area (6), the solid sulfur source bed is fixedly arranged in the solid-liquid mass transfer reaction area, the water inlet pipe and the liquid sulfur source dosing pipe are positioned at the water inlet end of the liquid-liquid mass transfer reaction area, the water outlet end of the liquid-liquid mass transfer reaction area is communicated with the water inlet end of the solid-liquid mass transfer reaction area, and the water outlet is positioned at the water outlet end of the solid-liquid mass transfer reaction area.
7. The dual-sulfur autotrophic denitrification pool according to claim 6, wherein: and a stirrer (4) is also arranged in the liquid-liquid mass transfer reaction zone.
8. The dual-sulfur autotrophic denitrification pool according to claim 6, wherein: the baffle extends along the longitudinal direction, a channel for liquid flowing is formed between the lower end of the baffle and the bottom of the tank body, the liquid-liquid mass transfer reaction zone and the solid-liquid mass transfer reaction zone are respectively positioned at the left side and the right side of the baffle, and the water inlet and the water outlet of the tank body are respectively positioned on the upper side wall of the two opposite side walls of the tank body along the liquid flowing direction.
9. The dual-sulfur autotrophic denitrification tank according to claim 5, wherein: the water inlet of the tank body is positioned at the lower end of one side of the tank body, the water outlet of the tank body is positioned at the upper end of the other side of the tank body, the solid sulfur source bed is fixedly arranged in the tank body and completely covers the cross section of the tank body, and a liquid-liquid mass transfer reaction zone is formed between the solid sulfur source bed and the bottom of the tank body.
10. The dual-sulfur autotrophic denitrification tank of claim 9, wherein: the tank body is also provided with a return pipe (10) on the side wall of the upper end of the solid sulfur source bed, the return pipe is communicated with a water inlet of the tank body, and the height of the water inlet of the return pipe is lower than that of the water outlet.
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| CN117125822A (en) * | 2023-10-19 | 2023-11-28 | 青岛鑫源环保集团有限公司 | Nitrate clarification plant is removed to drinking water |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101962224A (en) * | 2010-10-15 | 2011-02-02 | 上海交通大学 | Device for removing nitrogen through bio-autotrophic denitrification |
| CN103058392A (en) * | 2013-01-29 | 2013-04-24 | 上海交通大学 | Method and device removing nitrates from water body by single-stage autotrophic denitrification |
| CN108439613A (en) * | 2018-04-23 | 2018-08-24 | 南京大学 | A kind of modularization sewage denitrification and dephosphorization treatment process based on sulphur autotrophic denitrification |
| CN211946454U (en) * | 2020-01-07 | 2020-11-17 | 苏州湛清环保科技有限公司 | Double-sulfur method autotrophic denitrification pool |
-
2020
- 2020-01-07 CN CN202010013743.8A patent/CN111056633A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101962224A (en) * | 2010-10-15 | 2011-02-02 | 上海交通大学 | Device for removing nitrogen through bio-autotrophic denitrification |
| CN103058392A (en) * | 2013-01-29 | 2013-04-24 | 上海交通大学 | Method and device removing nitrates from water body by single-stage autotrophic denitrification |
| CN108439613A (en) * | 2018-04-23 | 2018-08-24 | 南京大学 | A kind of modularization sewage denitrification and dephosphorization treatment process based on sulphur autotrophic denitrification |
| CN211946454U (en) * | 2020-01-07 | 2020-11-17 | 苏州湛清环保科技有限公司 | Double-sulfur method autotrophic denitrification pool |
Non-Patent Citations (1)
| Title |
|---|
| 付彩霞: ""不同硫源自养反硝化效果与微生物菌群结构的研究"", 《中国优秀硕士学位论文全文数据库 工程科技I辑》, no. 2, 15 February 2018 (2018-02-15), pages 07 - 183 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117125822A (en) * | 2023-10-19 | 2023-11-28 | 青岛鑫源环保集团有限公司 | Nitrate clarification plant is removed to drinking water |
| CN117125822B (en) * | 2023-10-19 | 2024-06-04 | 青岛鑫源环保集团有限公司 | Nitrate clarification plant is removed to drinking water |
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