CN104261556A - Method for starting shortcut nitrification process in presence of anti-inflammatory drug - Google Patents
Method for starting shortcut nitrification process in presence of anti-inflammatory drug Download PDFInfo
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- CN104261556A CN104261556A CN201410499598.3A CN201410499598A CN104261556A CN 104261556 A CN104261556 A CN 104261556A CN 201410499598 A CN201410499598 A CN 201410499598A CN 104261556 A CN104261556 A CN 104261556A
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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
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
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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
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Abstract
The invention discloses a method for starting a shortcut nitrification process in presence of an anti-inflammatory drug. According to the method disclosed by the invention, the shortcut nitrification process is started under the condition of the anti-inflammatory drug; after starting is ended, on the one hand, starting of nitrosification can be quickened by a reactor, and on the other hand, the problem of pollution of the anti-inflammatory drug is solved; thus the method meets the development requirements for developing an energy-saving environment-friendly biological water treatment technology for synchronous detoxification and denitrification in future, is capable of quickly degrading the anti-inflammatory drug, and simultaneously meets the requirements of a biological denitrification technology.
Description
Technical field
The invention belongs to environmental technology field, be specifically related to a kind of method starting short-cut nitrification technology under antiphlogiston existence condition.
Background technology:
The denitrification process of sewage disposal, mainly carries out under microorganism drives.Tradition denitrification process needs to experience ammonia oxidation-nitrated (aerobic)-denitrification (anaerobism) several stage.The aerobic stage of mineralized nitrogen needs a large amount of aeration, makes it be converted into nitrate.Therefore, consume a large amount of electric energy, reaction time is longer.Short distance nitration only needs to control aeration rate makes water body mineralized nitrogen be nitrite, then remove the total nitrogen in water by short-cut denitrification or Anammox stage, the utilization of short-cut nitrification technology provides a kind of new approach for solving biological denitrificaion cycle long problem.Short distance nitration and the nitrated maximum difference of tradition be save the energy and speed of response fast, be converted into nitrite at short notice, to decrease in traditional technology from nitrite to nitrate, restore back the duplicate paths of nitrite, accelerate the process of biological denitrificaion.With the oxygen-consumption of denitrification technical battery in order to 25% can be saved, the denitrifying carbon source of 40%.On the other hand, using nitrite nitrogen as denitrification substrate, its denitrification rate is 1.5-2 times of the denitrification rate taking nitrate nitrogen as substrate.Moreover Short-Cut Nitrification Process distance is short, and sludge yield is low, decreases the pressure to sludge treatment, above feature allows Short-Cut Nitrification Process become the study hotspot in current novel denitrogenation field.Short distance nitration is the basis of following Process of Biological Nitrogen Removal, is also the developing direction of sewage disposal energy-saving and emission-reduction.But the core of short distance nitration process is ammonia oxidizing bacteria, often by the interference of the hazardous and noxious substances such as each AID, sterilant, persistent organism, cause active suppression, cause the decline of short distance nitration efficiency.
Non-steroidanalgetic drug (hereinafter referred to as antiphlogiston, NSAIDs) starts to be widely used in daily life.Anti-inflammatory drug with fastest developing speed at present, at present existing over one hundred kind.Comprise: acetylsalicylic acid salt, as acetylsalicylic acid; Non-acetylsalicyclic Barbiturates, as magnesium salicylate, sodium salicylate; Non-salicylic acid salt, as Ibuprofen BP/EP etc.The medicine being wherein representative with diclofenac, Ibuprofen BP/EP, acetaminophen etc. occupied NSAIDs market main share.After major part antiphlogiston enters human body, be not absorbed by the body decomposition, and its parent and partial intermediate with the movement entered environment of the mankind, can be pooled in Sewage Plant at different levels by water exhaust system, be then disposed in natural water gradually.Its water body dissolubility of this AID is strong, be easy to move with sewage, at present, Europe, weekly partial rivers, lake have been found that the existence of a large amount of antiphlogiston, add that the natural degradation time is longer, the western countries such as European Union have been found that its potential information requirement and the accumulative murder by poisoning of organism, interference are poisoned.
Traditional wastewater factory and office reason emphasizes that, to organic removal, the general residence time is shorter, and a few hours are not to tens of hours etc.Therefore cause most of antiphlogiston degradation efficiency low, antiphlogiston enters natural water initiation with effluent from WWTP and accumulates gradually in water surrounding.Therefore, a kind of energy of exploitation fast degradation antiphlogiston, meets the culturing sludge method of bio-denitrification technology requirement simultaneously, has very real meaning.
Summary of the invention:
Object of the present invention provides one can fast degradation antiphlogiston, meets the method starting short-cut nitrification technology under antiphlogiston existence condition of bio-denitrification technology requirement simultaneously.
The method starting short-cut nitrification technology under antiphlogiston existence condition of the present invention, is characterized in that, comprise the following steps:
A, biofilm stage: get aerobic sludge and be inoculated on the biofiltration layer of reactor, then carry out biofilm;
B, Nitrification Stage: after completing biofilm, add ammonia-containing water again, this ammonia-containing water is also containing antiphlogiston, control water outlet pH value 7.5-8.0, blast aeration, control water outlet dissolved oxygen at 1-2mg/L, when the clearance that effluent index detects thing antiphlogiston reaches more than 50% time, start to enter Nitrification Stage, improve the ammonia nitrogen concentration of ammonia-containing water and the concentration of antiphlogiston, control water outlet pH value 7.5-8.0, blast aeration controls water outlet dissolved oxygen at 0.5-1mg/L, when nitrite accumulation rate is more than 50%, the nitrosification steady stage is entered time ammonia nitrogen removal frank is more than 50%,
C, nitrosification steady stage: continue to improve the antiphlogiston concentration in the nitrogenous effluent of water and ammonia nitrogen concentration, using water dissolution oxygen concn controls as 1-2mg/L, when nitrite accumulation rate is more than 90%, ammonia nitrogen removal frank is more than 50%, reactor reaches the steady stage, and short-cut nitrification technology has started.
This startup can be utilized to complete reach the ammonia-containing water of reactor for treatment containing antiphlogiston of steady stage thus.
The described method starting short-cut nitrification technology under antiphlogiston existence condition, preferably, concrete steps are:
A, biofilm stage: get aerobic sludge and be inoculated on the biofiltration layer of reactor, displacement nutritive medium, aeration, carries out biofilm, then emptying, completes biofilm, and described nutritive medium often rises and contains: NH
4cl 0.1g, NaHCO
30.2g, surplus is water;
B, Nitrification Stage: after completing biofilm, add the ammonia-containing water that ammonia nitrogen concentration is 50mg/L again, the antiphlogiston of this ammonia-containing water also containing 2-5mg/L, control water outlet pH value 7.5-8.0, blast aeration controls water outlet dissolved oxygen at 1-2mg/L, when the clearance that effluent index detects thing antiphlogiston reaches more than 50% time, start to enter Nitrification Stage, the ammonia nitrogen concentration improving ammonia-containing water is to the concentration of 50-100mg/L and antiphlogiston to 5-7mg/L, control water outlet pH value 7.5-8.0, blast aeration controls water outlet dissolved oxygen at 0.5-1mg/L, when nitrite accumulation rate is more than 50%, the nitrosification steady stage is entered time ammonia nitrogen removal frank is more than 50%,
C, nitrosification steady stage: continue to improve antiphlogiston concentration in the nitrogenous effluent of water to 10mg/L and ammonia nitrogen concentration to 200mg/L, using water dissolution oxygen concn controls as 1-2mg/L, when nitrite accumulation rate is more than 90%, ammonia nitrogen removal frank is more than 50%, reactor reaches the steady stage, and short-cut nitrification technology has started.
Method of the present invention starts Short-Cut Nitrification Process under antiphlogiston condition, after having started, reactor can accelerate the startup of Short-Cut Nitrification Process on the one hand, solve the problem that antiphlogiston pollutes on the other hand, meet very much the requirement of the energy saving and environment friendly synchronous detoxification of following exploitation, the development of denitrification organisms water technology.Can fast degradation antiphlogiston, meet bio-denitrification technology requirement simultaneously.
Accompanying drawing illustrates:
Fig. 1 is the ammonia nitrogen removal frank of reactor under antiphlogiston existence condition and the nitrosification cumulative percentage of embodiment 1;
Fig. 2 is the reactor conditions variation diagram under antiphlogiston existence condition of embodiment 1.
Embodiment:
Following examples further illustrate of the present invention, instead of limitation of the present invention.
Embodiment 1:
Reactor is submerged filter apparatus, by intaking, water exhaust system, pretreatment layer, biofiltration layer, go out water filtering layer composition.Water inlet system is used for water distribution and current is introduced pretreatment layer, for preliminary treatment water inlet, removes water body recovery technology, part pollutent is trapped in pretreatment system and purifies; Biofiltration layer is made up of volcanics, is Short-Cut Nitrification Process operating area; Go out water filtering layer and can be used for deep purifying water outlet, water exhaust system drawing-off water.Pretreatment layer, forms pretreatment system, floor height 25cm via adopting the particle volcanics of particle diameter 0.5-1cm after screening.Biofiltration layer adopts particle diameter to be the volcanics composition of 2.5cm-5cm, and volcanics is after cleaning, and tap water soaks 2.5 hours, and points 4 layers closely knitly insert in reactor after cleaning, controlling filling ratio is 75%, floor height 45m; Go out the manganese sand that water filtering layer is 1-2.5cm by particle diameter to form, closely knitly insert in reactor, controlling filling ratio is 70%, and floor height 15cm, current from the bottom up.
Reactor adopts the operational mode of continuum micromeehanics, water outlet.(1) inoculate the aerobic sludge 1.5L of municipal sewage plant at the beginning of running, after aerobic sludge precipitation 24h, remove supernatant liquor, replace nutritive medium by 1:1.Often liter of nutritive medium composition is: NH
4cl 0.1g, NaHCO
30.2g, surplus is water, soaks biofiltration layer, emptying after abundant aeration 48h, completes biofilm and enters subordinate phase.(2) subordinate phase nitrosification accumulation phase: reactor runs continuously, the residence time is set as 5 days, and (composition is: NH to add simulated sewage
4cl (adding as required), NaHCO
30.2g/L, KH
2pO
40.1g/L, CaCl
22H
2o 0.04g/L, MgSO
47H
2o 0.082g/L, acetaminophen 5mg/L), keep water outlet pH value 7.5-8.0, blast aeration, water outlet dissolved oxygen controls at 1-2mg/L, and initial ammonia nitrogen, COD concentration are 50mg/L and 50mg/L, acetaminophen 5mg/L.When the clearance that effluent index detects thing antiphlogiston (acetaminophen) reaches more than 50% time, start to enter Nitrification Stage, improve the ammonia nitrogen concentration of ammonia-containing water to 100mg/L, the concentration of acetaminophen remains 5mg/L, control water outlet pH value 7.5-8.0, blast aeration controls water outlet dissolved oxygen and controls at 0.5-1mg/L, when nitrite accumulation rate is more than 50%, enters the nitrosification steady stage time ammonia nitrogen removal frank is more than 50%.(3) nitrosification steady stage phase III: pH value 7.5-8.0 between domestication; Dissolved oxygen (DO) controls at 1-2mg/L, and ammonia nitrogen is promoted to 200mg/L, and acetaminophen concentration is 10mg/L.Hydraulic detention time shortens to 3 days, and after 75 days, nitrite accumulation rate is more than 90%, and ammonia nitrogen removal frank is more than 50%, and reactor reaches stable operation stage.Nitrite accumulation rate=water outlet nitrite concentration/(water outlet nitrite concentration+water outlet nitrate concentration).
The reactor utilizing this to reach the steady stage continues the nitrogenous effluent that process acetaminophen content is 10mg/L, ammonia nitrogen concentration is 200mg/L, and the clearance of its acetaminophen is 98-100%.Whole startup short-cut nitrification technology and process contain the nitrogenous effluent treatment effect of antiphlogiston as depicted in figs. 1 and 2.Ammonia nitrogen removal frank as seen from Figure 1 in reactor under anoxic conditions 40-50% change, nitrosoation rate then raises gradually, from 0%, the operation through 80 days rises to close to 100%.The mineralized nitrogen removed is nitrite nitrogen, and display reactor enters Nitrification Stage.Fig. 2 shows the change of nitrosation reactor state, under acetaminophen existence condition, continue to improve influent ammonia nitrogen, in reactor, ammonia nitrogen is by turning to nitrite and nitrate, along with the prolongation of working time, nitrate declines gradually, and nitrite progressively rises, reactor enters Nitrification Stage, and a large amount of Nitrite accumulation display reactors enters the stable short distance nitration stage.
Embodiment 2:
Reactor is submerged filter apparatus, by intaking, water exhaust system, pretreatment layer, biofiltration layer, go out water filtering layer composition.Water inlet system is used for water distribution and current is introduced pretreatment layer, for preliminary treatment water inlet, removes water body recovery technology, part pollutent is trapped in pretreatment system and purifies; Biofiltration layer is made up of volcanics, is Short-Cut Nitrification Process operating area; Go out water filtering layer and can be used for deep purifying water outlet, water exhaust system drawing-off water.First step pretreatment layer, forms pretreatment system, floor height 25cm via adopting the particle volcanics of particle diameter 0.5-1cm after screening.Biofiltration layer adopts particle diameter to be the volcanics composition of 2.5cm-5cm, and volcanics is after cleaning, and tap water soaks 2.5 hours, and points 4 layers closely knitly insert in reactor after cleaning, controlling filling ratio is 75%, floor height 45m; Go out the manganese sand that water filtering layer is 1-2.5cm by particle diameter to form, closely knitly insert in reactor, controlling filling ratio is 70%, and floor height 15cm, current from the bottom up.
Reactor adopts the operational mode of continuum micromeehanics, water outlet.(1) inoculate the aerobic sludge 1.5L of municipal sewage plant at the beginning of running, after aerobic sludge precipitation 24h, remove supernatant liquor, replace nutritive medium by 1:1.Often liter of nutritive medium composition is: NH
4cl 0.1g, NaHCO
30.2g, surplus is water, soaks biofiltration layer, emptying after abundant aeration 48h, completes biofilm and enters subordinate phase.(2) subordinate phase nitrosification accumulation phase: reactor runs continuously, the residence time is set as 5 days, and (composition is: NH to add simulated sewage
4cl (adding as required), NaHCO
30.2 g/L, KH
2pO
40.1g/L, CaCl
22H
2o 0.04g/L, MgSO
47H
2o 0.082g/L, acetaminophen 2mg/L), keep water outlet pH value 7.5-8.0, blast aeration, water outlet dissolved oxygen controls at 1-2mg/L, and initial ammonia nitrogen, COD concentration are 50mg/L and 50mg/L, acetaminophen 2mg/L.When the clearance that effluent index detects thing antiphlogiston reaches more than 50% time, start to enter Nitrification Stage, keep the ammonia nitrogen concentration 50mg/L of ammonia-containing water, the concentration improving acetaminophen is 7mg/L, control water outlet pH value 7.5-8.0, blast aeration controls water outlet dissolved oxygen and controls at 0.5-1mg/L, when nitrite accumulation rate is more than 50%, enters the nitrosification steady stage time ammonia nitrogen removal frank is more than 50%.(3) nitrosification steady stage phase III: pH value 7.5-8.0 between domestication; Dissolved oxygen (DO) controls at 1-2mg/L, and ammonia nitrogen is promoted to 200mg/L, and acetaminophen concentration is 10mg/L.Hydraulic detention time shortens to 3 days, and after 75 days, nitrite accumulation rate is more than 90%, and ammonia nitrogen removal frank is more than 50%, and reactor reaches stable operation stage.
The reactor utilizing this to reach the steady stage continues the nitrogenous effluent that process acetaminophen content is 10mg/L, and its ammonia nitrogen removal frank is 60%, and acetaminophen clearance is 99-100%.
Claims (2)
1. under antiphlogiston existence condition, start a method for short-cut nitrification technology, it is characterized in that, comprise the following steps:
A, biofilm stage: get aerobic sludge and be inoculated on the biofiltration layer of reactor, then carry out biofilm;
B, Nitrification Stage: after completing biofilm, add ammonia-containing water again, this ammonia-containing water is also containing antiphlogiston, control water outlet pH value 7.5-8.0, blast aeration, control water outlet dissolved oxygen at 1-2mg/L, when the clearance that effluent index detects thing antiphlogiston reaches more than 50% time, start to enter Nitrification Stage, improve the ammonia nitrogen concentration of ammonia-containing water and the concentration of antiphlogiston, control water outlet pH value 7.5-8.0, blast aeration controls water outlet dissolved oxygen at 0.5-1mg/L, when nitrite accumulation rate is more than 50%, the nitrosification steady stage is entered time ammonia nitrogen removal frank is more than 50%,
C, nitrosification steady stage: continue to improve the antiphlogiston concentration in the nitrogenous effluent of water and ammonia nitrogen concentration, using water dissolution oxygen concn controls as 1-2mg/L, when nitrite accumulation rate is more than 90%, ammonia nitrogen removal frank is more than 50%, reactor reaches the steady stage, and short-cut nitrification technology has started.
2. method according to claim 1, is characterized in that, the described method starting short-cut nitrification technology under antiphlogiston existence condition, and concrete steps are:
A, biofilm stage: get aerobic sludge and be inoculated on the biofiltration layer of reactor, displacement nutritive medium, aeration, carries out biofilm, then emptying, completes biofilm, and described nutritive medium often rises and contains: NH
4cl 0.1g, NaHCO
30.2g, surplus is water;
B, Nitrification Stage: after completing biofilm, add the ammonia-containing water that ammonia nitrogen concentration is 50mg/L again, the antiphlogiston of this ammonia-containing water also containing 2-5mg/L, control water outlet pH value 7.5-8.0, blast aeration controls water outlet dissolved oxygen at 1-2mg/L, when the clearance that effluent index detects thing antiphlogiston reaches more than 50% time, start to enter Nitrification Stage, the ammonia nitrogen concentration improving ammonia-containing water is to the concentration of 50-100mg/L and antiphlogiston to 5-7mg/L, control water outlet pH value 7.5-8.0, blast aeration controls water outlet dissolved oxygen at 0.5-1mg/L, when nitrite accumulation rate is more than 50%, the nitrosification steady stage is entered time ammonia nitrogen removal frank is more than 50%,
C, nitrosification steady stage: continue to improve antiphlogiston concentration in the nitrogenous effluent of water to 10mg/L and ammonia nitrogen concentration to 200mg/L, using water dissolution oxygen concn controls as 1-2mg/L, when nitrite accumulation rate is more than 90%, ammonia nitrogen removal frank is more than 50%, reactor reaches the steady stage, and short-cut nitrification technology has started.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105198169A (en) * | 2015-10-22 | 2015-12-30 | 广东省微生物研究所 | Method for applying combined packing layer autotrophic nitrogen removal microbe system and simultaneously removing total nitrogen and anti-inflammatory agents |
| CN112661258A (en) * | 2020-12-08 | 2021-04-16 | 北京工业大学 | Method for rapidly starting normal-temperature short-cut nitrification of municipal sewage by using acetaminophen |
| CN113104954A (en) * | 2021-04-13 | 2021-07-13 | 北京工业大学 | Method for quickly starting and stably maintaining normal-temperature short-cut nitrification of municipal sewage by using phenacetin |
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| CN103435227A (en) * | 2013-08-27 | 2013-12-11 | 北京工业大学 | Device and method for biological denitrification of landfill leachate through SBR (Sequencing Batch Reactor) short-cut nitrification-SBBR anaerobic ammonia oxidation combined process |
| CN103693735A (en) * | 2013-12-26 | 2014-04-02 | 青岛思普润水处理有限公司 | Starting and running method for shortcut nitration technology based on MBBR |
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2014
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Patent Citations (4)
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| JPS63123497A (en) * | 1986-11-14 | 1988-05-27 | Hitachi Ltd | Controlling system for washing contact aeration tank |
| CN102115259A (en) * | 2011-01-27 | 2011-07-06 | 中山大学 | Method for converting active sludge into autotrophic denitrified sludge based on mixed type continuous flow reactor |
| CN103435227A (en) * | 2013-08-27 | 2013-12-11 | 北京工业大学 | Device and method for biological denitrification of landfill leachate through SBR (Sequencing Batch Reactor) short-cut nitrification-SBBR anaerobic ammonia oxidation combined process |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105198169A (en) * | 2015-10-22 | 2015-12-30 | 广东省微生物研究所 | Method for applying combined packing layer autotrophic nitrogen removal microbe system and simultaneously removing total nitrogen and anti-inflammatory agents |
| CN105198169B (en) * | 2015-10-22 | 2017-06-30 | 广东省微生物研究所 | A kind of method that application compounded mix layer autotrophic denitrification microflora removes total nitrogen and anti-inflammatory agent simultaneously |
| CN112661258A (en) * | 2020-12-08 | 2021-04-16 | 北京工业大学 | Method for rapidly starting normal-temperature short-cut nitrification of municipal sewage by using acetaminophen |
| CN113104954A (en) * | 2021-04-13 | 2021-07-13 | 北京工业大学 | Method for quickly starting and stably maintaining normal-temperature short-cut nitrification of municipal sewage by using phenacetin |
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