CN111099741A - Method for improving denitrification effect of nitrification and denitrification process - Google Patents
Method for improving denitrification effect of nitrification and denitrification process Download PDFInfo
- Publication number
- CN111099741A CN111099741A CN201811255623.8A CN201811255623A CN111099741A CN 111099741 A CN111099741 A CN 111099741A CN 201811255623 A CN201811255623 A CN 201811255623A CN 111099741 A CN111099741 A CN 111099741A
- Authority
- CN
- China
- Prior art keywords
- denitrification
- nitrification
- concentration
- cordycepin
- polyethylene glycol
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 50
- 230000000694 effects Effects 0.000 title claims abstract description 18
- 230000001360 synchronised effect Effects 0.000 claims abstract description 21
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000000203 mixture Substances 0.000 claims abstract description 19
- KQLDDLUWUFBQHP-UHFFFAOYSA-N Cordycepin Natural products C1=NC=2C(N)=NC=NC=2N1C1OCC(CO)C1O KQLDDLUWUFBQHP-UHFFFAOYSA-N 0.000 claims abstract description 14
- OFEZSBMBBKLLBJ-BAJZRUMYSA-N cordycepin Chemical compound C1=NC=2C(N)=NC=NC=2N1[C@@H]1O[C@H](CO)C[C@H]1O OFEZSBMBBKLLBJ-BAJZRUMYSA-N 0.000 claims abstract description 14
- OFEZSBMBBKLLBJ-UHFFFAOYSA-N cordycepine Natural products C1=NC=2C(N)=NC=NC=2N1C1OC(CO)CC1O OFEZSBMBBKLLBJ-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000002202 Polyethylene glycol Substances 0.000 claims abstract description 12
- 229920001223 polyethylene glycol Polymers 0.000 claims abstract description 12
- 239000010865 sewage Substances 0.000 claims abstract description 12
- -1 alkyl glycoside Chemical class 0.000 claims abstract description 11
- 229930182470 glycoside Natural products 0.000 claims abstract description 11
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 10
- 239000002351 wastewater Substances 0.000 claims abstract description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 27
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 claims description 19
- 229910052757 nitrogen Inorganic materials 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 7
- 229910052760 oxygen Inorganic materials 0.000 claims description 7
- 239000001301 oxygen Substances 0.000 claims description 7
- 229920000604 Polyethylene Glycol 200 Polymers 0.000 claims description 4
- 238000010992 reflux Methods 0.000 claims description 3
- 229920002565 Polyethylene Glycol 400 Polymers 0.000 claims description 2
- 238000000605 extraction Methods 0.000 claims description 2
- 238000000855 fermentation Methods 0.000 claims description 2
- 230000004151 fermentation Effects 0.000 claims description 2
- 230000000813 microbial effect Effects 0.000 abstract description 3
- 238000011272 standard treatment Methods 0.000 abstract description 2
- 241000894006 Bacteria Species 0.000 description 18
- 244000005700 microbiome Species 0.000 description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- 229910052799 carbon Inorganic materials 0.000 description 6
- 230000001546 nitrifying effect Effects 0.000 description 6
- 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 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 239000010802 sludge Substances 0.000 description 3
- 241001252564 Chrysopsis Species 0.000 description 2
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 description 2
- 241001052560 Thallis Species 0.000 description 2
- 238000005273 aeration Methods 0.000 description 2
- 230000001651 autotrophic effect Effects 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 239000007952 growth promoter Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 1
- AVXURJPOCDRRFD-UHFFFAOYSA-N Hydroxylamine Chemical compound ON AVXURJPOCDRRFD-UHFFFAOYSA-N 0.000 description 1
- MSFSPUZXLOGKHJ-UHFFFAOYSA-N Muraminsaeure Natural products OC(=O)C(C)OC1C(N)C(O)OC(CO)C1O MSFSPUZXLOGKHJ-UHFFFAOYSA-N 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- 108090000913 Nitrate Reductases Proteins 0.000 description 1
- 108010025915 Nitrite Reductases Proteins 0.000 description 1
- 241000108664 Nitrobacteria Species 0.000 description 1
- 108010013639 Peptidoglycan Proteins 0.000 description 1
- 235000002595 Solanum tuberosum Nutrition 0.000 description 1
- 244000061456 Solanum tuberosum Species 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 210000002421 cell wall Anatomy 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- SOCTUWSJJQCPFX-UHFFFAOYSA-N dichromate(2-) Chemical compound [O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O SOCTUWSJJQCPFX-UHFFFAOYSA-N 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 150000002191 fatty alcohols Chemical class 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 239000008103 glucose Substances 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 238000009828 non-uniform distribution Methods 0.000 description 1
- 150000007523 nucleic acids Chemical class 0.000 description 1
- 102000039446 nucleic acids Human genes 0.000 description 1
- 108020004707 nucleic acids Proteins 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 229920000768 polyamine Polymers 0.000 description 1
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 229930002161 purine alkaloid Natural products 0.000 description 1
- 150000003212 purines Chemical class 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000012163 sequencing technique Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 1
- 238000002798 spectrophotometry method Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000004448 titration Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- C02F3/30—Aerobic and anaerobic processes
- C02F3/302—Nitrification and denitrification treatment
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/08—Chemical Oxygen Demand [COD]; Biological Oxygen Demand [BOD]
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/14—NH3-N
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/16—Total nitrogen (tkN-N)
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/06—Nutrients for stimulating the growth of microorganisms
Landscapes
- 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)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The invention relates to a method for improving the denitrification effect of a nitrification and denitrification process, which is characterized in that a composition mainly comprising cordycepin, alkyl glycoside and polyethylene glycol is added into a system for treating ammonia-containing wastewater by a synchronous nitrification and denitrification process, wherein the weight ratio of the cordycepin, the alkyl glycoside and the polyethylene glycol is 2-20:1-10:1, and preferably 5-10:2-5: 1. By adding the specific composition, the invention solves the problems of mutual restriction of microbial functions, poor denitrification effect, unstable operation and the like in practical application of synchronous nitrification and denitrification, and realizes the standard treatment of sewage.
Description
Technical Field
The invention belongs to the field of sewage treatment, and particularly relates to a method for improving the denitrification effect of a nitrification and denitrification process.
Background
Synchronous Nitrification and Denitrification (SND) means that nitrification and denitrification reactions are simultaneously carried out in the same reactor. The novel denitrification process overcomes the defect that the nitrification and denitrification processes are carried out in two different reactors or are carried out in sequence in the same reactor (SBR) in the traditional biological denitrification process. Compared with the traditional nitrification and denitrification process, the SND has the outstanding advantages in the aspects of reducing energy consumption, material consumption and the like: the alkali generated in the denitrification process can partially neutralize the acid generated in the nitrification process, so that the consumption of chemical reagents is reduced, the pH in the reactor can be effectively kept stable, and the addition of alkalinity is reduced or cancelled; the volume of the traditional reactor is reduced, and the capital cost is saved; for a sequencing batch reactor consisting of only one reaction tank, SND can reduce the time required to achieve nitrification and denitrification; the aeration quantity is saved, the energy consumption can be further reduced, and the energy-saving and emission-reducing requirements advocated vigorously at present are met. Therefore, the synchronous nitrification and denitrification process has become one of the research hotspots in the field of sewage treatment.
Foreign researchers put nitrobacteria and denitrifying bacteria into the same reactor for mixed culture, although synchronous nitrification and denitrification of a single reactor can be achieved, denitrification results are unsatisfactory, and a certain distance is left from practical application. The Holbourgen potato processing wastewater treatment project adopts the combination of short-range nitrification and anaerobic ammonia oxidation to realize synchronous nitrification and denitrification, but the denitrification adopts obligate anaerobic ammonia oxidation bacteria which are in an aerobic environment with certain concentration for a long time, so the activity of the anaerobic ammonia oxidation bacteria is reduced to a certain extent, and the denitrification effect is not ideal. Some related research works are also carried out in China, Gunn golden aster and the like perform combined denitrification by using aerobic denitrifying flora and autotrophic nitrifying flora (application and environmental biology reports, 2002,8(1): 78-82), although the gunn golden aster and the like have better ammonia nitrogen removal capability, high-concentration ammonia nitrogen higher than 300mg/L can inhibit the growth of thalli, and when the ammonia nitrogen concentration is higher than 200mg/L, the residual amount of the ammonia nitrogen is more after denitrification, high-concentration organic carbon is not tolerated, and the organic carbon concentration of 500mg/L can inhibit the growth of the thalli and reduce the denitrification effect; the culture and growth conditions of various bacteria in the combined flora are inconsistent, one of the bacteria is in a suppressed state when the other bacteria plays a role, so that the bacteria are not coordinated with each other, the biological denitrification time is prolonged, the cost is increased, and the denitrification efficiency is influenced.
Meanwhile, both traditional and novel biological denitrification needs nitrifying bacteria and denitrifying bacteria to complete the biological denitrification. The microorganisms participating in the nitrification process are mainly autotrophic nitrifying bacteria, obtain energy from the process of biologically oxidizing ammonia nitrogen to nitrate nitrogen, and generally use inorganic carbon as a carbon source, so that the microorganisms have the advantages of long metabolism time, slow growth, belonging to gram-negative bacteria, low peptidoglycan content in cell walls, high protein and fat content and sensitivity to environmental change, and therefore, the natural nitrifying bacteria in the nature have poor adaptability and tolerance ratio. The microorganisms participating in denitrification are mainly denitrifying bacteria, and the microorganisms can induce nitrate reductase A and nitrite reductase required by denitrification generally only under the anaerobic condition, and carry out denitrification by taking nitrate or nitrite as an electron acceptor. Because the two types of microorganisms need different environments, in the whole denitrification process of sewage treatment, namely the nitrification process and the denitrification process, high-concentration ammonia nitrogen and nitrate nitrogen can inhibit the growth of nitrifying bacteria, high-concentration dissolved oxygen and insufficient carbon source can inhibit the growth of denitrifying bacteria, and the shock resistance of the system is poor, so that the total denitrification effect is influenced.
CN201510802687.5 discloses a sewage short-cut synchronous nitrification and denitrification denitrogenation method, which is mainly characterized in that nitrite type denitrogenation bacteria and microorganism growth promoters are added into an ammonia-containing sewage treatment system, wherein the microorganism growth promoters comprise metal salts, polyamine substances, organic acid hydroxylamine and Na2SO3. The method solves the problems of mutual restriction of microbial functions, unstable denitrification effect and the like in practical application of synchronous nitrification and denitrification, but the accelerator uses metal salt and has the hidden danger of secondary pollution due to improper use.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a method for improving the denitrification effect of a nitrification and denitrification process. By adding the specific composition, the invention solves the problems of mutual restriction of microbial functions, poor denitrification effect, unstable operation and the like in practical application of synchronous nitrification and denitrification, and realizes the standard treatment of sewage.
The method for improving the denitrification effect of the nitrification and denitrification process, provided by the invention, comprises the following steps of: in a system for treating ammonia-containing wastewater by a synchronous nitrification and denitrification process, a composition mainly comprising cordycepin, alkyl glycoside and polyethylene glycol is added, wherein the weight ratio of the cordycepin, the alkyl glycoside and the polyethylene glycol is 2-20:1-10:1, and preferably 5-10:2-5: 1.
In the invention, the molecular formula of the cordycepin is CsHyON, the relative molecular mass is 251.25, and the cordycepin is a nucleic acid adaptor containing nitrogen glycoside and belongs to purine alkaloids. The cordycepin used in the invention is mainly cordycepin obtained by natural extraction or fermentation.
In the present invention, the alkyl glycoside (APG for short) is obtained by removing one molecule of water from glucose and a renewable natural fatty alcohol under an acidic catalyst, and usually at least one of APG0810, APG0814, APG0816, APG1214, APG1216, and the like is used.
In the present invention, the polyethylene glycol (PEG) has a molecular weight of less than 500, such as at least one of PEG-200, PEG-400, etc., preferably PEG-200.
In the invention, the composition is added according to the concentration of the composition in inlet water of 0.001-1mg/L, preferably 0.05-0.1mg/L, and can be added once a day or once every few days until the total nitrogen concentration of outlet water is lower than 40 mg/L. If the system fluctuates in the running process, the ammonia nitrogen or the total nitrogen can be added and used at any time when the removal rate of the ammonia nitrogen or the total nitrogen is unstable.
In the invention, the ammonia-containing sewage is all sewage containing COD and ammonia nitrogen suitable for biological treatment, wherein the ammonia nitrogen concentration is 50-500mg/L, the total nitrogen concentration is 50-500mg/L, and the COD concentration is 500-1000 mg/L.
In the invention, the synchronous nitrification and denitrification process refers to a treatment system capable of realizing synchronous nitrification and denitrification in one reactor, and comprises synchronous nitrification and denitrification formed due to nonuniform distribution of dissolved oxygen in space and a synchronous nitrification and denitrification system formed by internal anaerobic and external aerobic denitrification granular sludge. The operating conditions of the synchronous nitrification and denitrification process are as follows: the temperature is 18-40 deg.C, preferably 25-40 deg.C, dissolved oxygen is 0.1-3mg/L, pH is 7-9, and reflux ratio is 20-40.
According to the invention, the composition of cordycepin, alkyl glycoside and polyethylene glycol is added into the system for treating ammonia-containing wastewater by the synchronous nitrification and denitrification process, so that the growth of denitrifying microorganisms can be promoted, the rapid adaptability of the microorganisms to substrates, products and unsuitable environmental conditions can be improved, the denitrification rate is improved, and the running stability of the system can be obviously improved. For an impacted system, the inhibition of high-concentration ammonia nitrogen and nitrate nitrogen on nitrifying bacteria can be reduced, the denitrification effect of denitrifying bacteria under the condition of insufficient high-concentration dissolved oxygen and carbon sources is improved, the long-term stable operation of the system can be maintained, the impacted system can be quickly repaired, the treatment effect of waste water can be obviously improved, and the stable synchronous nitrification and denitrification can be really realized.
Detailed Description
The method and effects of the present invention will be described in further detail by examples. The embodiments are implemented on the premise of the technical scheme of the invention, and detailed implementation modes and specific operation processes are given, but the protection scope of the invention is not limited by the following embodiments.
The experimental procedures in the following examples are, unless otherwise specified, conventional in the art. The test materials used in the following examples were purchased from biochemical reagent stores unless otherwise specified.
In the embodiment of the invention, the COD concentration is determined by GB11914-89 bichromate method which is the determination of chemical oxygen demand of water quality; the ammonia nitrogen concentration is measured by GB7478-87 'determination of ammonium in water-distillation and titration method'; the total nitrogen concentration adopts GB 11894-89 'determination of water quality-total nitrogen-alkaline potassium persulfate digestion ultraviolet spectrophotometry'.
First, compositions were prepared according to the proportions and formulations of table 1.
TABLE 1 formulation and proportions of the compositions
The ammonia nitrogen concentration of the coal gasification sewage generated by a certain petrochemical enterprise is 350mg/L and the total nitrogen concentration is 250-370mg/L, COD is 1000mg/L and 500-1000 mg/L. After the existing synchronous nitrification and denitrification process is adopted for treatment, the effluent total nitrogen cannot reach the standard, and the condition that the ammonia nitrogen does not reach the standard often occurs. The invention simulates an industrial device, an airlift reactor with the effective volume of 5L is adopted in a laboratory for processing, the sludge of the industrial device is inoculated according to the sludge concentration of 4000mg/L, the reactor adopts an intermediate aeration mode, the dissolved oxygen is controlled to be 0.1-3mg/L, the temperature is 25-35 ℃, the pH is 7.5-8.5, and the reflux ratio of mixed liquid is 30. In the reaction process, the composition No. 1-8 is added according to the concentration of the composition in the inlet water of 0.05mg/L, marked as examples 1-7 and comparative example 1, and the control without adding is set as comparative example 2. The composition is added once every other day, and after the addition is carried out for 15 days, the addition is stopped when the total nitrogen concentration of effluent is lower than 40 mg/L. The system continues to operate for 15 days, and samples are taken every day to detect the quality of the effluent. Specific statistical results are shown in table 2.
TABLE 2 treatment effect by adding different compositions
As can be seen from the data in the table 2, the ammonia nitrogen concentration of the effluent is always lower than 8mg/L and the total nitrogen concentration is always lower than 30mg/L after the composition is used, so that stable synchronous nitrification and denitrification are realized.
Claims (10)
1. A method for improving the denitrification effect of a nitrification and denitrification process is characterized by comprising the following steps: in a system for treating ammonia-containing wastewater by a synchronous nitrification and denitrification process, a composition mainly comprising cordycepin, alkyl glycoside and polyethylene glycol is added, wherein the weight ratio of the cordycepin to the alkyl glycoside to the polyethylene glycol is 2-20:1-10: 1.
2. The method of claim 1, wherein: the weight ratio of the cordycepin to the alkyl glycoside to the polyethylene glycol is 5-10:2-5: 1.
3. The method according to claim 1 or 2, characterized in that: the cordycepin is cordycepin obtained by natural extraction or fermentation.
4. The method according to claim 1 or 2, characterized in that: the alkyl glycoside is at least one of APG0810, APG0814, APG0816, APG1214, APG1216 and the like.
5. The method according to claim 1 or 2, characterized in that: the polyethylene glycol has a molecular weight less than 500.
6. The method of claim 5, wherein: the polyethylene glycol is at least one of PEG-200 and PEG-400, preferably PEG-200.
7. The method of claim 1, wherein: the composition is added once per time according to the concentration of the composition in inlet water of 0.001-1mg/L, preferably 0.05-0.1mg/L, once per day or once every few days, and the adding is stopped until the total nitrogen concentration of outlet water is lower than 40 mg/L.
8. The method of claim 1, wherein: if the system fluctuates in the running process, the ammonia nitrogen or the total nitrogen is fed and used at any time when the removal rate of the ammonia nitrogen or the total nitrogen is unstable.
9. The method of claim 1, wherein: the ammonia-containing sewage is sewage which is suitable for biological treatment and contains COD and ammonia nitrogen, wherein the concentration of the ammonia nitrogen is 50-500mg/L, the total nitrogen concentration is 50-500mg/L, and the concentration of the COD is 500-1000 mg/L.
10. The method of claim 1, wherein: the operating conditions of the synchronous nitrification and denitrification process are as follows: the temperature is 18-40 deg.C, preferably 25-40 deg.C, dissolved oxygen is 0.1-3mg/L, pH is 7-9, and reflux ratio is 20-40.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811255623.8A CN111099741A (en) | 2018-10-26 | 2018-10-26 | Method for improving denitrification effect of nitrification and denitrification process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811255623.8A CN111099741A (en) | 2018-10-26 | 2018-10-26 | Method for improving denitrification effect of nitrification and denitrification process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111099741A true CN111099741A (en) | 2020-05-05 |
Family
ID=70419040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811255623.8A Pending CN111099741A (en) | 2018-10-26 | 2018-10-26 | Method for improving denitrification effect of nitrification and denitrification process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111099741A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111099742A (en) * | 2018-10-26 | 2020-05-05 | 中国石油化工股份有限公司 | Composition for improving resistance of denitrification system and denitrification method thereof |
Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05309388A (en) * | 1992-05-12 | 1993-11-22 | Nippon Soda Co Ltd | Bulking preventing agent of activated sludge |
| JPH10314782A (en) * | 1997-05-22 | 1998-12-02 | Kuraray Co Ltd | Water treatment carrier, its manufacture and method for nitrification and denitrification using that |
| US6551511B1 (en) * | 1999-05-31 | 2003-04-22 | Matsushita Electric Industrial Co. Ltd. | Denitrification promoter and a method of water treatment using the same |
| CN101591070A (en) * | 2009-05-21 | 2009-12-02 | 东莞圣源环保科技有限公司 | Method for restoring ecology in water body in lake |
| CN101890211A (en) * | 2009-05-21 | 2010-11-24 | 环保股份有限公司 | Additive for purifying a medium contaminated by a mineral oil and purification method |
| CN102586033A (en) * | 2011-01-13 | 2012-07-18 | 郑涵 | Biological remediation type water system oil stain cleaning agent and preparation method thereof |
| CN102942286A (en) * | 2012-11-06 | 2013-02-27 | 沈阳建筑大学 | Combined process of high-carbon and high-nitrogen organic wastewater treatment |
| CN103396947A (en) * | 2013-07-05 | 2013-11-20 | 杜思源 | Micro nutrient additive for microbial water treatment |
| CN104789471A (en) * | 2015-04-07 | 2015-07-22 | 普罗生物技术（上海）有限公司 | Bioactive nitrogen nutrition agent |
| CN104925944A (en) * | 2015-05-19 | 2015-09-23 | 湖北大学 | Denitrifying filler, preparation method of denitrifying filler and application of denitrifying filler to denitrification of water body |
| CN105621624A (en) * | 2014-10-28 | 2016-06-01 | 中国石油化工股份有限公司 | Denitriding method for ammonia-containing wastewater discharged in acrylic fiber production process |
| CN105621610A (en) * | 2014-10-28 | 2016-06-01 | 中国石油化工股份有限公司 | Salt-containing sewage simultaneous nitrification and denitrification denitrogenation method |
| CN106830358A (en) * | 2017-02-21 | 2017-06-13 | 佛山市碧沃丰生物科技股份有限公司 | A kind of sewage disposal biological growth promoter and preparation method thereof, applying method |
| CN107162320A (en) * | 2017-05-24 | 2017-09-15 | 广西碧清源环保科技有限公司 | A kind of organic nitrogen waste water treatment process |
| CN108439615A (en) * | 2018-05-09 | 2018-08-24 | 东莞市石鼓污水处理有限公司 | A kind of purifying agent for polluted water and preparation method thereof |
| CN108545836A (en) * | 2018-05-09 | 2018-09-18 | 东莞市石鼓污水处理有限公司 | A kind of microbial activity agent and preparation method thereof |
-
2018
- 2018-10-26 CN CN201811255623.8A patent/CN111099741A/en active Pending
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05309388A (en) * | 1992-05-12 | 1993-11-22 | Nippon Soda Co Ltd | Bulking preventing agent of activated sludge |
| JPH10314782A (en) * | 1997-05-22 | 1998-12-02 | Kuraray Co Ltd | Water treatment carrier, its manufacture and method for nitrification and denitrification using that |
| US6551511B1 (en) * | 1999-05-31 | 2003-04-22 | Matsushita Electric Industrial Co. Ltd. | Denitrification promoter and a method of water treatment using the same |
| CN101591070A (en) * | 2009-05-21 | 2009-12-02 | 东莞圣源环保科技有限公司 | Method for restoring ecology in water body in lake |
| CN101890211A (en) * | 2009-05-21 | 2010-11-24 | 环保股份有限公司 | Additive for purifying a medium contaminated by a mineral oil and purification method |
| CN102586033A (en) * | 2011-01-13 | 2012-07-18 | 郑涵 | Biological remediation type water system oil stain cleaning agent and preparation method thereof |
| CN102942286A (en) * | 2012-11-06 | 2013-02-27 | 沈阳建筑大学 | Combined process of high-carbon and high-nitrogen organic wastewater treatment |
| CN103396947A (en) * | 2013-07-05 | 2013-11-20 | 杜思源 | Micro nutrient additive for microbial water treatment |
| CN105621624A (en) * | 2014-10-28 | 2016-06-01 | 中国石油化工股份有限公司 | Denitriding method for ammonia-containing wastewater discharged in acrylic fiber production process |
| CN105621610A (en) * | 2014-10-28 | 2016-06-01 | 中国石油化工股份有限公司 | Salt-containing sewage simultaneous nitrification and denitrification denitrogenation method |
| CN104789471A (en) * | 2015-04-07 | 2015-07-22 | 普罗生物技术（上海）有限公司 | Bioactive nitrogen nutrition agent |
| CN104925944A (en) * | 2015-05-19 | 2015-09-23 | 湖北大学 | Denitrifying filler, preparation method of denitrifying filler and application of denitrifying filler to denitrification of water body |
| CN106830358A (en) * | 2017-02-21 | 2017-06-13 | 佛山市碧沃丰生物科技股份有限公司 | A kind of sewage disposal biological growth promoter and preparation method thereof, applying method |
| CN107162320A (en) * | 2017-05-24 | 2017-09-15 | 广西碧清源环保科技有限公司 | A kind of organic nitrogen waste water treatment process |
| CN108439615A (en) * | 2018-05-09 | 2018-08-24 | 东莞市石鼓污水处理有限公司 | A kind of purifying agent for polluted water and preparation method thereof |
| CN108545836A (en) * | 2018-05-09 | 2018-09-18 | 东莞市石鼓污水处理有限公司 | A kind of microbial activity agent and preparation method thereof |
Non-Patent Citations (4)
| Title |
|---|
| PRASANNAN GEETHA PREENA等: "Genetic diversity of nitrate reducing bacteria in marine and brackish water nitrifying bacterial consortia generated for activating nitrifying bioreactors in recirculating aquaculture systems", 《AQUACULTURE RESEARCH》 * |
| 彭赵旭等: "同步硝化反硝化的影响因素研究", 《给水排水》 * |
| 杜卓凌等: "《神奇的虫草素》", 30 June 2016, 四川科学技术出版社 * |
| 毛绍麟: "《微生物学》", 28 February 1994, 中央广播电视大学出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111099742A (en) * | 2018-10-26 | 2020-05-05 | 中国石油化工股份有限公司 | Composition for improving resistance of denitrification system and denitrification method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Zhou et al. | Simultaneous biological removal of nitrogen and phosphorus from secondary effluent of wastewater treatment plants by advanced treatment: A review | |
| CN108117165B (en) | Method for treating ammonia-containing wastewater | |
| CN102040281A (en) | Method for culturing denitrogenized granular sludge | |
| CN102050521A (en) | Method for treating ammonia containing wastewater through simultaneous nitrification and denitrification | |
| Wu et al. | Rapid start-up and stable maintenance of partial nitrification–anaerobic ammonium oxidation treatment of landfill leachate at low temperatures | |
| CN106434469B (en) | Low-temperature-resistant nitrifying bacteria agent and preparation method and application thereof | |
| Chen et al. | Unveiling the interaction mechanisms of key functional microorganisms in the partial denitrification-anammox process induced by COD | |
| Guo et al. | Screening of three ammonia-oxidizing bacteria and construction of compounding agent CCZU C6 in high-efficiency ammonia-oxidizing | |
| CN103373766B (en) | Wastewater biochemical treatment method for simultaneously realizing sludge reduction | |
| CN111099741A (en) | Method for improving denitrification effect of nitrification and denitrification process | |
| CN107311306B (en) | Method for treating ammonia-containing sewage by short-cut nitrification and denitrification | |
| CN100460498C (en) | Sequencing batch active sludge process for eliminating ammonia nitrogen from sewage | |
| CN109942080B (en) | Composition for promoting denitrification of anaerobic ammonium oxidation bacteria and application thereof | |
| CN106554076B (en) | Biological treatment method of ammonia-containing wastewater | |
| CN103045578A (en) | Preparation method of composite bacterial agent of ammonia oxidation bacteria | |
| CN101269875A (en) | Application of carbonatation steel scoria in wastewater treatment | |
| CN104944671B (en) | A kind of processing method of wastewater from molecular sieve catalyzer | |
| CN101045577A (en) | Method for removing sewage aminonitrogen by activated sludge process | |
| CN114620900A (en) | Denitrification treatment method for kitchen anaerobic wastewater | |
| CN100542978C (en) | Activated sludge process is removed the method for sewage ammonia nitrogen | |
| CN100460500C (en) | Sequencing batch active sludge process for eliminating ammonia nitrogen from sewage | |
| Islam et al. | Development of an enumeration method for arsenic methylating bacteria from mixed culture samples | |
| CN111099742A (en) | Composition for improving resistance of denitrification system and denitrification method thereof | |
| CN111099722B (en) | Composition for promoting denitrification and application thereof | |
| CN109880784B (en) | Composition for promoting denitrification of denitrifying microorganisms and application thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20240321 Address after: 100728 No. 22 North Main Street, Chaoyang District, Beijing, Chaoyangmen Applicant after: CHINA PETROLEUM & CHEMICAL Corp. Country or region after: Zhong Guo Applicant after: Sinopec (Dalian) Petrochemical Research Institute Co.,Ltd. Address before: 100728 No. 22 North Main Street, Chaoyang District, Beijing, Chaoyangmen Applicant before: CHINA PETROLEUM & CHEMICAL Corp. Country or region before: Zhong Guo Applicant before: DALIAN RESEARCH INSTITUTE OF PETROLEUM AND PETROCHEMICALS, SINOPEC Corp. |