CN115818834A - Device and process for treating ciprofloxacin wastewater by using whole-process autotrophic coupling sulfur component - Google Patents
Device and process for treating ciprofloxacin wastewater by using whole-process autotrophic coupling sulfur component Download PDFInfo
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- CN115818834A CN115818834A CN202211608476.4A CN202211608476A CN115818834A CN 115818834 A CN115818834 A CN 115818834A CN 202211608476 A CN202211608476 A CN 202211608476A CN 115818834 A CN115818834 A CN 115818834A
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- MYSWGUAQZAJSOK-UHFFFAOYSA-N ciprofloxacin Chemical compound C12=CC(N3CCNCC3)=C(F)C=C2C(=O)C(C(=O)O)=CN1C1CC1 MYSWGUAQZAJSOK-UHFFFAOYSA-N 0.000 title claims abstract description 140
- 230000001651 autotrophic effect Effects 0.000 title claims abstract description 120
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 title claims abstract description 115
- 229910052717 sulfur Inorganic materials 0.000 title claims abstract description 110
- 239000011593 sulfur Substances 0.000 title claims abstract description 110
- 229960003405 ciprofloxacin Drugs 0.000 title claims abstract description 70
- 239000002351 wastewater Substances 0.000 title claims abstract description 52
- 238000000034 method Methods 0.000 title claims abstract description 33
- 230000008878 coupling Effects 0.000 title claims abstract description 28
- 238000010168 coupling process Methods 0.000 title claims abstract description 28
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 28
- 230000008569 process Effects 0.000 title claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 50
- 241000894006 Bacteria Species 0.000 claims abstract description 31
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 20
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 11
- 102000004190 Enzymes Human genes 0.000 claims abstract description 8
- 108090000790 Enzymes Proteins 0.000 claims abstract description 8
- 238000005273 aeration Methods 0.000 claims description 25
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 claims description 18
- 241001453382 Nitrosomonadales Species 0.000 claims description 16
- 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 claims description 16
- 239000000945 filler Substances 0.000 claims description 14
- 239000010802 sludge Substances 0.000 claims description 14
- 238000004065 wastewater treatment Methods 0.000 claims description 13
- 239000007789 gas Substances 0.000 claims description 10
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 8
- 229910052760 oxygen Inorganic materials 0.000 claims description 8
- 239000001301 oxygen Substances 0.000 claims description 8
- 238000003756 stirring Methods 0.000 claims description 7
- 244000005700 microbiome Species 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 4
- 230000014759 maintenance of location Effects 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 claims 1
- 239000012528 membrane Substances 0.000 claims 1
- 229910002651 NO3 Inorganic materials 0.000 abstract description 10
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 abstract description 10
- 238000010276 construction Methods 0.000 abstract description 3
- 238000012360 testing method Methods 0.000 description 7
- 244000144972 livestock Species 0.000 description 6
- 239000003242 anti bacterial agent Substances 0.000 description 4
- 229940088710 antibiotic agent Drugs 0.000 description 4
- 244000144977 poultry Species 0.000 description 4
- 238000009395 breeding Methods 0.000 description 3
- 230000001488 breeding effect Effects 0.000 description 3
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000002195 synergetic effect Effects 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 208000027954 Poultry disease Diseases 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000036267 drug metabolism Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000003608 fece Anatomy 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The invention provides a device and a process for treating ciprofloxacin wastewater by using a completely autotrophic coupling sulfur component, wherein the device is creatively provided with the sulfur component in a traditional completely autotrophic reactor, sulfur autotrophic bacteria can be quickly enriched, the construction of a completely autotrophic coupling sulfur autotrophic denitrification process is completed, the ciprofloxacin is metabolized by using CYP450 enzymes in the sulfur autotrophic bacteria, the removal rate of the ciprofloxacin can reach 40-60%, and the reduction of effluent nitrate by 40-60% is realized by the sulfur autotrophic denitrification. The system and the process solve the problems that the ciprofloxacin cannot be synchronously removed by the completely autotrophic reactor and the concentration of the nitrate in the effluent water is reduced, and realize effective removal of the total nitrogen and the ciprofloxacin in the wastewater.
Description
Technical Field
The invention belongs to the technical field of biological wastewater treatment, and particularly relates to a device and a process for treating ciprofloxacin wastewater by a completely autotrophic coupling sulfur component.
Background
The livestock and poultry breeding industry is a basic industry of livestock husbandry in China and is also a main supporting industry of rural economy in China. Generally, wastewater produced by large-scale farms has the characteristics of high organic matter content and high ammonia nitrogen content, and the treatment difficulty is high. In addition, a certain amount of antibiotics such as ciprofloxacin and the like are generally added into the livestock and poultry feed for preventing and treating livestock and poultry diseases, and the antibiotics cannot be completely metabolized in animal bodies, and can be discharged into breeding wastewater along with livestock and poultry excreta, so that the wastewater treatment system is influenced.
At present, the technology for removing anaerobic organic matters in livestock and poultry breeding wastewater is relatively mature, but the treatment difficulty of subsequent high ammonia nitrogen effluent is still relatively high. The completely autotrophic nitrogen removal process has the technical advantage of reducing the operation cost in the process of treating the high ammonia nitrogen wastewater, but the existence of the ciprofloxacin in the wastewater can inhibit the completely autotrophic process to a certain extent. A single whole-process autotrophic process is difficult to biodegrade ciprofloxacin, and the process theoretically has the problem of 11% of effluent nitrate. Therefore, the goal of stable and efficient treatment when mixed wastewater containing antibiotics and high ammonia nitrogen is urgently needed to be realized by the whole autotrophic process.
In view of the above, it is necessary to develop a sewage treatment system and process that can overcome the problem of the completely autotrophic reactor that can not synchronously remove ciprofloxacin and reduce the concentration of nitrate in the effluent.
Disclosure of Invention
In order to solve the defects of the prior art, the invention provides a device and a process for enhanced denitrification and ciprofloxacin removal by a completely autotrophic coupling sulfur assembly, which can overcome the difficult problems that the completely autotrophic reactor cannot synchronously remove the ciprofloxacin and reduce the concentration of nitrate in effluent. The specific technical scheme is as follows:
the invention firstly provides a device for treating ciprofloxacin wastewater by using a completely autotrophic coupling sulfur component, which is characterized by comprising a completely autotrophic reactor main body, a water inlet pump, a sulfur component, a circulating pump, an aeration device and a stirring device;
the bottom of the whole autotrophic reactor body is provided with a water inlet at the bottom of the whole autotrophic reactor body, and the water inlet pump is communicated with the water inlet at the bottom of the whole autotrophic reactor body through a pipeline;
the sulfur component is arranged in the whole autotrophic reactor main body and is respectively provided with a sulfur component water inlet and a sulfur component water outlet;
the circulating pump is communicated with a water inlet of the sulfur assembly through a pipeline, and can convey the wastewater on the upper part of the whole autotrophic reactor main body to the sulfur assembly;
the top of the whole autotrophic reactor body is provided with a whole autotrophic reactor body top overflow port;
the aeration device is used for adjusting the concentration of dissolved oxygen in the whole autotrophic reactor body;
the whole autotrophic reactor body is internally provided with biofilm fillers.
In some embodiments of the invention, the biofilm carrier is attached with denitrifying microorganisms.
In some embodiments of the invention, the denitrogenation functional microorganisms attached to the biofilm carrier are ammonia oxidizing bacteria and anaerobic ammonia oxidizing bacteria. .
In some embodiments of the invention, the sulfur module is filled with a mixture of elemental sulfur and sulfur autotrophic denitrifying bacteria.
In some embodiments of the invention, the elemental sulfur comprises 70 to 90 volume percent of the sulfur component.
In some embodiments of the invention, the sulfur component is made of cylindrical organic glass.
In some embodiments of the invention, the sulfur autotrophic denitrifying bacteria in the mixture are obtained from a sulfur autotrophic reactor in a laboratory that is operated stably for a long period of time.
In some embodiments of the invention, the concentration of the sulfur autotrophic denitrifying bacteria is 3-5 g/L.
In some embodiments of the invention, the aeration device consists of an aeration pump and a gas flow meter.
In some embodiments of the invention, the aeration pump, the gas flow meter and the aeration head are communicated through a gas pipeline.
In some embodiments of the invention, a DO detector is disposed within the photoautotrophic reactor body.
In some embodiments of the invention, the apparatus further comprises a PLC controller, and the PLC controller is in communication connection with the DO detector, the aeration device and the stirring device, respectively.
The invention also provides a ciprofloxacin wastewater treatment process of the device for treating ciprofloxacin wastewater based on the completely autotrophic coupling sulfur component, which is characterized by comprising the following steps:
starting a device for treating ciprofloxacin wastewater by using a whole autotrophic coupling sulfur component, inoculating sludge containing ammonia oxidizing bacteria and anaerobic ammonia oxidizing bacteria into a whole autotrophic reactor main body, wherein the sludge concentration is 3-10 g/L, inoculating sludge containing sulfur autotrophic denitrifying bacteria into a sulfur component, the sludge concentration is 3-8 g/L, conveying ammonia nitrogen wastewater containing ciprofloxacin to the whole autotrophic reactor main body by using a water inlet pump, carrying out aeration stirring, controlling the dissolved oxygen concentration to be 1-2 mg/L by using an aeration device, and controlling the hydraulic retention time to be 12-24 h, converting ammonia nitrogen in inlet water into nitrogen and nitrate nitrogen by using functional microorganisms on a biomembrane filler, simultaneously pumping the wastewater containing ciprofloxacin and nitrate nitrogen at the upper part of the reactor into the sulfur component by using a circulating pump, reducing the nitrate nitrogen by using the sulfur autotrophic denitrifying bacteria, reinforcing removal of ciprofloxacin by using CYP450 enzyme in the sulfur autotrophic bacteria, and finally discharging the wastewater into the whole autotrophic reactor main body by using a sulfur component water outlet of the whole autotrophic reactor main body to treat overflow water.
In some embodiments of the invention, the biofilm filler is present in an amount of 30 to 60%.
In some embodiments of the invention, the ratio of the flow rate of the circulation pump to the flow rate of the feed pump is 1 to 3:1.
The invention has the beneficial effects that:
the method adopts a mode of adding the sulfur component in the completely autotrophic reactor, can quickly enrich sulfur autotrophic bacteria, complete the construction of the completely autotrophic coupling sulfur autotrophic denitrification process, utilizes CYP450 enzyme in the sulfur autotrophic bacteria to metabolize ciprofloxacin, can solve the problems that the completely autotrophic reactor can not synchronously remove the ciprofloxacin and reduce the concentration of nitrate in effluent water, and can ensure that the removal rate of the ciprofloxacin reaches 40-60% and the concentration of the nitrate in the effluent water is reduced by 40-60%.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of a ciprofloxacin wastewater treatment device with a completely autotrophic coupling sulfur module, provided by the invention;
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it should be apparent that the described embodiments are only a part of the embodiments of the present invention and should not be used to limit the scope of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, belong to the scope of the present invention.
Example 1: device for treating ciprofloxacin wastewater by using whole-process autotrophic coupling sulfur component
As shown in fig. 1, the device for treating ciprofloxacin ammonia nitrogen wastewater by using the whole autotrophic coupling sulfur component comprises a whole autotrophic reactor main body, a water inlet pump, an aeration pump, a gas flowmeter, a stirrer, a sulfur component and a circulating pump, wherein a water inlet at the bottom of the whole autotrophic reactor main body is formed at the bottom of the whole autotrophic reactor main body, and the water inlet pump is communicated with the water inlet at the bottom of the whole autotrophic reactor main body through a pipeline; the sulfur component is arranged in the whole autotrophic reactor main body and is respectively provided with a sulfur component water inlet and a sulfur component water outlet; the circulating pump is communicated with a water inlet of the sulfur component through a pipeline, and the circulating pump can convey the wastewater on the upper part of the whole autotrophic reactor main body to the sulfur component; the top of the whole autotrophic reactor main body is provided with a whole autotrophic reactor main body top overflow port; the aeration pump and the gas flowmeter are used for adjusting the dissolved oxygen concentration in the whole autotrophic reactor main body, and the aeration pump, the gas flowmeter and the aeration head are communicated through a pipeline; the whole autotrophic reactor is internally provided with biofilm filler.
The method comprises the following steps that ciprofloxacin-containing ammonia nitrogen wastewater flows into a water inlet at the bottom of a main reactor through a water inlet pump, a biological film filler is arranged in the reactor, ammonia oxidizing bacteria and anaerobic ammonia oxidizing bacteria are attached to the biological film filler, oxygen is provided through an aeration pump and a gas flowmeter, mud and water are mixed through a stirrer, the ammonia oxidizing bacteria and the anaerobic ammonia oxidizing bacteria on the biological film filler convert ammonia nitrogen in inlet water into nitrogen and nitrate nitrogen, meanwhile, the wastewater at the upper part of the reactor is pumped into a sulfur component water inlet through an external pipeline through a circulating pump, and is discharged into the reactor through a sulfur component water outlet after being treated by a sulfur component, and the final outlet water of the device is discharged through an overflow port at the top of the reactor main body.
S is taken as an electron donor and NO is taken as the sulfur component 3 - N is an electron acceptor, partial nitrate is consumed and ciprofloxacin is removed under the action of sulfur autotrophic denitrifying bacteria, the problem of high nitrate in effluent water caused by the impact of ciprofloxacin under the whole autotrophic process is solved, and the reaction formula is as follows:
4S+6NO 3 2- +4H+→4SO 4 2- +3N 2 +2H 2 O
the purpose of enriching sulfur autotrophic bacteria is achieved by adding a sulfur component, the construction of a whole-process autotrophic coupling sulfur autotrophic denitrification process is completed, the ciprofloxacin is degraded by using CYP450 enzyme in the sulfur autotrophic bacteria, and finally the removal rate of the ciprofloxacin reaches 40-60%.
Example 2: ciprofloxacin wastewater treatment process of device for treating ciprofloxacin wastewater based on whole-process autotrophic coupling sulfur component
The process in this example is based on the apparatus in example 1, and includes the following steps:
s1, adding sulfur autotrophic denitrification sludge and sulfur elementary substances into a sulfur component, enabling the ammonia nitrogen wastewater containing ciprofloxacin to flow into a device for treating ciprofloxacin wastewater by using a completely autotrophic coupling sulfur component, adding 3-5 g/L of completely autotrophic inoculated sludge containing ammonia oxidizing bacteria and anaerobic ammonia oxidizing bacteria, and enabling the biofilm filler to account for 30-60%. Starting a device for treating ciprofloxacin wastewater by using a whole autotrophic coupling sulfur component, conveying ammonia nitrogen wastewater containing ciprofloxacin to a whole autotrophic reactor main body by using a water inlet pump, carrying out aeration stirring, controlling the dissolved oxygen concentration to be 1-2 mg/L by using an aeration device, converting the ammonia nitrogen in the inlet water into nitrogen and nitrate nitrogen by using functional microorganisms on biofilm packing, conveying the upper wastewater of the reactor to the sulfur component by using a circulating pump, pumping the wastewater containing ciprofloxacin and nitrate nitrogen into the sulfur component in the sulfur component, reducing the nitrate nitrogen in the wastewater containing ciprofloxacin and nitrate nitrogen by using sulfur autotrophic denitrifying bacteria, strengthening the removal of ciprofloxacin by using CYP450 enzyme in sulfur autotrophic bacteria, discharging the wastewater after being treated by the sulfur component through a water outlet of the sulfur component, and then entering the whole autotrophic reactor main body again to complete one cycle of wastewater treatment, and finally discharging the treated water through an overflow port at the top of the whole autotrophic reactor main body.
After the operation is stable, the ammonia nitrogen in the inlet water is converted into nitrogen and nitrate nitrogen by the synergistic action of AOB bacteria and AnAOB bacteria in the system, and the nitrogen and the nitrate nitrogen contain NO in an anoxic environment 2 - -N、NO 3- The waste water of the-N and the ciprofloxacin enters a sulfur component, and sulfur autotrophic denitrifying bacteria reduce NO by using elemental sulfur 2 - -N and NO 3- -N and producing N 2 Meanwhile, sulfur is oxidized into sulfate, and CYP450 enzyme in organisms is utilized to carry out drug metabolism on fluorine-containing antibiotics such as ciprofloxacin and the like. Through the synergistic effect of the AOB bacteria, the AnAOB bacteria and the sulfur autotrophic denitrifying bacteria, the removal rates of the ciprofloxacin and the trinitrogen in the system are maintained at a higher level.
Example 3: ciprofloxacin wastewater treatment based on whole-process autotrophic coupling sulfur component device
The quality of the synthetic wastewater used in the test was as follows: the concentration of ciprofloxacin is 5mg/L, the concentration of ammonia nitrogen is 200mg/L, and KH is 2 PO 4 The concentration was 10mg/L, and the pH of the feed water was controlled at 7.5 by adding sodium bicarbonate.
The test was divided into two groups: the test group is carried out on a full Cheng Ziyang coupling sulfur module device provided with a sulfur module for treating ciprofloxacin wastewater; the inside diameter of the whole autotrophic reactor is 12cm, the total height is 40cm, the effective height is 30cm, and the height-diameter ratio is 2.5:1, wherein the volume of the sulfur component is 100mL, and the material is cylindrical organic glass; the control was carried out in a whole autotrophic apparatus without sulfur module, the inside diameter of the whole autotrophic reactor main body was 12cm, the total height was 40cm, the effective height was 30cm, and the ratio of height to diameter was 2.5:1.
biofilm fillers are added into the two groups of whole-course autotrophic reactor main bodies, the fillers account for 40 percent of the whole-course autotrophic reactor main body, sludge with ammonia oxidizing bacteria and anaerobic ammonia oxidizing bacteria is inoculated, and the sludge concentration of the two groups of devices is controlled to be 5g/L. The sulfur modules of the test groups were inoculated with 3g/L sludge concentration of sulfur autotrophic denitrifying bacteria. Starting two sets of ciprofloxacin wastewater devices, conveying ammonia nitrogen wastewater containing ciprofloxacin to two sets of completely autotrophic reactor main bodies by a water inlet pump, aerating and stirring, controlling the dissolved oxygen concentration to be 1.5mg/L by the aeration device, controlling the hydraulic retention time to be 16h, and converting the ammonia nitrogen in the inlet water into nitrogen and nitrate nitrogen by functional microorganisms on a biomembrane filler. The ratio of the flow speed of the circulating pump of the test group to the flow speed of the water inlet pump is 1:1, the circulating pump pumps the wastewater containing the ciprofloxacin and the nitrate nitrogen at the upper part of the reactor into the sulfur component, the sulfur autotrophic denitrifying bacteria reduce the nitrate nitrogen by using sulfur simple substances, and meanwhile, the CYP450 enzyme in the sulfur autotrophic bacteria is used for strengthening the removal of the ciprofloxacin. After the synthetic wastewater is treated by the two sets of devices, the treatment data are shown in the following table one.
Table one or two sets of test devices treatment effect comparison (5 sets of data mean values were selected)
According to test results, the total nitrogen removal rate of the ciprofloxacin wastewater treated by the device and the process for treating the ciprofloxacin wastewater by adopting the total autotrophic coupling sulfur component is maintained at a high level, the ciprofloxacin removal rate is obviously improved, and the nitrate effluent concentration is far lower than that of a control group.
The above embodiments are only specific examples of the present invention, and the protection scope of the present invention includes but is not limited to the product forms and styles of the above embodiments, and any suitable changes or modifications made by those skilled in the art according to the claims of the present invention shall fall within the protection scope of the present invention.
Claims (9)
1. A device for treating ciprofloxacin wastewater by using a completely autotrophic coupling sulfur component is characterized by comprising a completely autotrophic reactor main body (1), a water inlet pump (2), a sulfur component (6), a circulating pump (7), an aeration device and a stirring device;
the bottom of the whole autotrophic reactor body (1) is provided with a water inlet (8) at the bottom of the whole autotrophic reactor body, and the water inlet pump (2) is communicated with the water inlet (8) at the bottom of the whole autotrophic reactor body through a pipeline;
the sulfur component (6) is arranged in the whole autotrophic reactor main body (1), and the sulfur component (6) is respectively provided with a sulfur component water inlet (10) and a sulfur component water outlet (11);
the circulating pump (7) is communicated with a water inlet (10) of the sulfur assembly through a pipeline, and the circulating pump (7) can convey the wastewater on the upper part of the whole autotrophic reactor main body (7) to the sulfur assembly;
the top of the whole autotrophic reactor body (1) is provided with a whole autotrophic reactor body top overflow port (12);
the aeration device is used for adjusting the concentration of dissolved oxygen in the whole autotrophic reactor body;
the whole autotrophic reactor body (7) is internally provided with a biological membrane filler (9).
2. The device for treating ciprofloxacin wastewater by using the completely autotrophic sulfur-coupled component according to claim 1, wherein the biofilm carrier (9) is attached with denitrified functional biological bacteria, and the denitrified functional biological bacteria are ammonia oxidizing bacteria and anaerobic ammonia oxidizing bacteria.
3. The device for treating ciprofloxacin wastewater by using the completely autotrophic coupling sulfur module according to claim 1, wherein the sulfur module is filled with a mixture of elemental sulfur and sulfur autotrophic denitrifying bacteria, and the elemental sulfur accounts for 70-90% of the volume of the sulfur module.
4. The device for treating ciprofloxacin wastewater by using the completely autotrophic sulfur-coupled module according to claim 3, wherein the sludge concentration of the sulfur autotrophic denitrifying bacteria is 3-5 g/L.
5. A ciprofloxacin wastewater treatment device with a total autotrophic coupling sulfur module according to any one of claims 1-4, characterized in that the aeration device comprises an aeration pump (3) and a gas flow meter (4).
6. The device for treating ciprofloxacin wastewater by using the completely autotrophic coupling sulfur module according to claim 5, wherein the aeration pump (3), the gas flow meter (4) and the aeration head are communicated through a gas transmission pipeline.
7. A ciprofloxacin wastewater treatment process based on the device for treating ciprofloxacin wastewater by using the completely autotrophic coupling sulfur component according to any one of claims 1 to 6, characterized by comprising the following steps:
starting a device for treating ciprofloxacin wastewater by using a whole autotrophic coupling sulfur component, inoculating sludge containing ammonia oxidizing bacteria and anaerobic ammonia oxidizing bacteria into a whole autotrophic reactor main body, wherein the sludge concentration is 3-10 g/L, inoculating sludge containing sulfur autotrophic denitrifying bacteria into a sulfur component, the sludge concentration is 3-8 g/L, conveying ammonia nitrogen wastewater containing ciprofloxacin to the whole autotrophic reactor main body by using a water inlet pump, carrying out aeration stirring, controlling the dissolved oxygen concentration to be 1-2 mg/L by using an aeration device, and controlling the hydraulic retention time to be 12-24 h, converting ammonia nitrogen in inlet water into nitrogen and nitrate nitrogen by using functional microorganisms on a biomembrane filler, simultaneously pumping the wastewater containing ciprofloxacin and nitrate nitrogen at the upper part of the reactor into the sulfur component by using a circulating pump, reducing the nitrate nitrogen by using the sulfur autotrophic denitrifying bacteria, reinforcing removal of ciprofloxacin by using CYP450 enzyme in the sulfur autotrophic bacteria, and finally discharging the wastewater into the whole autotrophic reactor main body by using a sulfur component water outlet of the whole autotrophic reactor main body to treat overflow water.
8. A ciprofloxacin wastewater treatment process for a ciprofloxacin wastewater treatment device based on the completely autotrophic coupling sulfur module according to any one of claims 1-6, characterized in that the proportion of biofilm fillers in the main body of the completely autotrophic reactor is 30-60%.
9. A ciprofloxacin wastewater treatment process for a ciprofloxacin wastewater treatment device based on the completely autotrophic coupling sulfur module according to any one of claims 1 to 6, wherein the ratio of the flow speed of the circulating pump to the flow speed of the water inlet pump is 1-3:1.
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| CN112850900A (en) * | 2021-03-06 | 2021-05-28 | 苏州绿业环境发展有限公司 | Method for synchronously removing nitrogen and sulfur in sewage based on shortcut nitrification-anaerobic ammonia oxidation-sulfur autotrophic denitrification system |
| CN115432805A (en) * | 2022-09-15 | 2022-12-06 | 北京工业大学 | Method and device for realizing deep denitrification and desulfurization of fermentation wastewater by virtue of short-cut nitrification synchronous anaerobic ammonia oxidation coupled sulfur autotrophic denitrification |
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102923853A (en) * | 2012-11-06 | 2013-02-13 | 沈阳建筑大学 | Waste water treatment method of sulfur autotrophic denitrification-anaerobic ammonia oxidation coupling desulphuration denitrification |
| CN105923759A (en) * | 2016-06-14 | 2016-09-07 | 中山大学 | Biological treatment method and application thereof for removing new type organic pollutants in water |
| CN112850900A (en) * | 2021-03-06 | 2021-05-28 | 苏州绿业环境发展有限公司 | Method for synchronously removing nitrogen and sulfur in sewage based on shortcut nitrification-anaerobic ammonia oxidation-sulfur autotrophic denitrification system |
| CN115432805A (en) * | 2022-09-15 | 2022-12-06 | 北京工业大学 | Method and device for realizing deep denitrification and desulfurization of fermentation wastewater by virtue of short-cut nitrification synchronous anaerobic ammonia oxidation coupled sulfur autotrophic denitrification |
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