CN101898828B - Method for culturing granular sludge by shortcut denitrification - Google Patents
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- CN101898828B CN101898828B CN2009100117599A CN200910011759A CN101898828B CN 101898828 B CN101898828 B CN 101898828B CN 2009100117599 A CN2009100117599 A CN 2009100117599A CN 200910011759 A CN200910011759 A CN 200910011759A CN 101898828 B CN101898828 B CN 101898828B
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Abstract
The invention discloses a method for culturing granular sludge by shortcut denitrification. The method comprises the following steps of putting inoculated sludge into an aerobic reactor, and performing enrichment culture on denitrifying sludge by using high ammonia-nitrogen low COD wastewater; then, performing secondary enrichment screening by wastewater simultaneously containing nitrate nitrogen, nitrite and COD in a facultative anaeration reactor, and performing third enrichment screening by wastewater only containing nitrite and COD; and finally acclimating by wastewater simultaneously containing ammonia-nitrogen, nitrite and COD to obtain the denitrified granular sludge with high removal rate on the nitrite when various forms of nitrogen coexist commonly. By the method, the denitrified granular sludge which can survive in a complicated environment and is capable of effectively treating wastewater nitrous nitrogen under proper condition can be obtained, and the shortcut nitrification-denitrification process can be truly applied to actual engineering conveniently.
Description
Technical field
The invention belongs to the biological wastewater treatment technology field, relate in particular to a kind of cultural method that utilizes the denitrification granular sludge of nitrite nitrogen.
Background technology
The main at present activated sludge process that adopts of the biological denitrificaion of waste water.Nitrogen with various forms in the sewage after nitrifier in the active sludge and the denitrifying bacteria acting in conjunction finally is converted into gaseous nitrogen.From nitrifying process, ammonia nitrogen (NH
3-N) be oxidized to nitrite nitrogen (NO
2-N) and nitrate nitrogen (NO
3-N) be by independently two differential responses finishing of bacterium of two classes, should separate.From denitrification process, NO
2-N and NO
3-N all can be used as final electron acceptor(EA).Thereby whole biological denitrification process can pass through NH
3-N is converted into NO
2-N is converted into N again
2Approach finish.
The short-cut nitrification and denitrification bio-denitrification technology claims the nitrite type bio-denitrification technology again, exactly nitrifying process is controlled at NO
2-N stage and stopping, carry out the nitrite denitrification denitrogenation subsequently.Compare with the traditional biological denitride technology, short distance nitration-denitrification biological denitrogenation technology can shorten hydraulic detention time, can save 25% energy consumption and 40% carbon source, can reduce the excess sludge treatment capacity simultaneously.Therefore, short distance nitration-denitrification biological denitrogenation technology has become a new research focus in bio-denitrifying sewage field.Particularly this technology is applied to handle high ammonia nitrogen low carbon-nitrogen ratio sewage, has important and practical meanings as Catalyst Production ammonia-containing water, urea production ammonia-containing water etc.
Granule sludge is that a large amount of bacteriums assemble the particulate state microbial aggregate with good settling property that growth forms, and is key and prerequisite that reactor is realized efficient operation.Therefore cultivate efficient, the highly active denitrification granular sludge that utilizes nitrite to carry out denitrogenation, can increase the biomass in the reactor, improve operation stability and treatment efficiency.
Chinese patent CN1800053A discloses a kind of method of utilizing granule sludge to carry out nitrite denitrification.This method is with the inoculation of activated-sludge upflow sludge bed reactor of packing into; To contain nitrite waste water and organic carbon source and pump into from described reactor bottom, waste water is flowed through and is flowed out from reactor top after the Sludge Bed.Cultivate after 30-90 days, obtain good nitrite denitrification granular sludge.Nitrite nitrogen concentration is 10-200mg/L in the used waste water of this method, high density nitrite nitrogen waste water is being carried out still be subjected to concentration limit when denitrification is handled.
Short-cut denitrification mainly adopts the suspension activated sludge process at present, because it is low to be responsible for the sludge concentration of denitrification functions in the system, cause the total nitrogen removal effect undesirable, particularly when condition is controlled bad Sewage treatment systems and is subjected to impacting, need add a certain amount of highly effective sludge particle and repair fast.
Summary of the invention
At cause problems such as nitrogen removal rate is not high in the existing short-cut denitrification technology owing to sludge concentration is low, the cultural method that the purpose of this invention is to provide a kind of denitrification granular sludge, be used for high ammonia nitrogen low ratio of carbon to ammonium biochemical treatment of industrial wastewater process, being specifically related to a kind of is the cultural method that substrate carries out denitrification granular sludge with the nitrite nitrogen, so that short-cut nitrification and denitrification technology really is applied to actual engineering.
The cultural method of granular sludge by shortcut denitrification of the present invention comprises following content:
(1) seed sludge is inserted in the aerobic reactor, carries out the enrichment culture of denitrogenation mud with high-ammonia nitrogen low C OD (chemical oxygen demand (COD)) waste water, with obtain tolerate high ammonia nitrogen, the denitrogenation flora of carbon source is hanged down in utilization;
(2) with the mud of enrichment in the step (1) in the oxygen reactor of holding concurrently, carry out the enrichment screening second time with containing nitrate nitrogen and nitrite nitrogen and COD waste water simultaneously, eliminate strict aerobic nitrifying bacteria community, make the denitrification flora of the oxygen of holding concurrently become dominant bacteria, to obtain the stronger denitrification granular sludge of oxygen environmental change adaptability to external world;
(3) with the denitrification granular sludge of enrichment in the step (2) in the oxygen reactor of holding concurrently, carry out the screening of enrichment for the third time with only containing nitrite nitrogen and COD waste water, thereby obtain with nitrite nitrogen as the final denitrification granular sludge of electron acceptor(EA);
(4) with the denitrification granular sludge that obtains in the step (3) with containing ammonia nitrogen simultaneously, nitrate nitrogen, nitrite nitrogen and COD waste water are tamed, thus acquisition denitrification granular sludge high when variform nitrogen exists jointly to the nitrite nitrogen removal efficiency.
Denitrification granular sludge by above-mentioned four steps acquisition, only utilize a small amount of carbon source, can tolerate ammonia nitrogen in high density and higher concentration nitrite nitrogen, adaptability to environment is strong, can be used to contain the denitrification denitrogenation of nitrite nitrogen waste water separately, also can be used for mixing and finish by the conversion process of ammonia nitrogen to nitrite nitrogen to nitrogen with nitrosated granular sludge.When being subjected to impacting, sewage work can also add as bioremediation agents.
The mode of all taking in the above-mentioned steps to improve main matrix concentration in the waste water is gradually carried out enrichment and domestication.Take intermittent water inflow mode or continuously water intake mode or external phase bonded water intake mode more intermittently earlier.Required ammonia nitrogen can be that all can be as the compound of microorganism nitrogenous source, as (NH
4)
2SO
4, urea etc., first-selected here (NH
4)
2SO
4As nitrogenous source; Required nitric nitrogen can be all nitrate or nitrite, as NaNO
2, KNO
3Deng; Required COD can pass through to add glucose, methyl alcohol or sodium succinate, and some other carbon containing organic compound.
All use growth stimulant in the above-mentioned steps culturing sludge process, comprise Fe
2+, Mg
2+, K
+, Ca
2+These four kinds of metallic cations can adopt material commonly used to be configured, and the mole allocation ratio of four kinds of metallic cations is 1: (4-8): (5-15): (1-5); Fe wherein
2+Be with FeSO
47H
2O or FeCL
2Form add; Mg
2 +Be with MgSO
47H
2O or MgCL
2Form add; K
+Be with KH
2PO
4And/or K
2HPO
4Form add; Ca
2+Be to adopt CaCO
3Perhaps CaCl
2Form add.
Step (1) enrichment denitrification activity mud can be the existing any method in this area.Culturing process nutrient solution ammonia nitrogen starting point concentration is 100～1000mg/L, and final ammonia nitrogen concentration is 1200～3000mg/L, preferred 1300～2000mg/L, and nutrient solution COD value is lower than 400mg/L, preferably is lower than 200mg/L.Seed sludge can be chosen this area active sludge with nitrification commonly used, preferably takes from the active sludge of oil refining sewerage treatment plant and the active sludge of catalyzer sewage work.The enrichment culture condition of described denitrogenation mud is: 20～40 ℃ of temperature; PH 6.0～9.0, and preferred 6.5～8.0; DO (dissolved oxygen) is greater than 2mgL
-1, preferred 2～10mgL
-1
Nitric nitrogen starting point concentration 100～500mg/L in step (2) waste water, final concentration is 400～1600mg/L, preferred 300～1000mg/L, the molar ratio of nitrate nitrogen and nitrite nitrogen are 1: (1～5), carbon-nitrogen ratio are (1-5): 1.The enrichment culture condition is: temperature is 20～35 ℃; PH is 7.0～9.5, preferred 7.5～8.0; DO (dissolved oxygen) is less than 2mgL
-1, be preferably 0.1～1mgL
-1
Only contain nitrite nitrogen in step (3) waste water, carbon-nitrogen ratio is (0.5～5): 1.Culturing process nutrient solution nitrite nitrogen starting point concentration 50～300mg/L, final concentration is 200～1000mg/L, preferred 300～800mg/L.The same step of enrichment culture condition (2).
Total nitrogen starting point concentration 300～600mg/L in step (4) waste water, final concentration is 600～2100mg/L, preferred 600～1800mg/L, the molar ratio of ammonia nitrogen, nitrate nitrogen and nitrite nitrogen are 1: (1～3): (1～5), carbon-nitrogen ratio are (0.2～5): 1.The enrichment culture condition is: temperature is 20～35 ℃; PH is 6.0～9.0, preferred 7.0～8.5; DO (dissolved oxygen) is less than 2mgL
-1, be preferably 0.5～1mgL
-1
The cultural method of granular sludge by shortcut denitrification of the present invention adopts multistage enrichment culture process, and different cultivation stages is optimized the adaptability of mud to different culture condition, has obtained the complex optimum effect, and the microorganism species wide accommodation, the use properties that obtain are good.The denitrification granular sludge that the inventive method is cultivated is particularly suitable for that the strong ammonia wastewater that produces in the processes such as catalyzer, synthetic ammonia is carried out denitrification and handles, this denitrification granular sludge tolerance and adaptability are strong, good impact resistance, the removal load of nitrite nitrogen is high, treatment effect is good.Can realize the engineering application of short-cut nitrification and denitrification technology.
Characteristics of the present invention are: at first adopt high ammonia-nitrogen wastewater that seed sludge is carried out aerobic and to the domestication of the tolerance of high ammonia nitrogen, the waste water that adopts three kinds of different nitrogen sources then carries out anaerobism under the oxygen condition of holding concurrently and to the tolerance domestication of environment, the final acquisition can be survived under complex environment, can efficiently be handled the denitrification granular sludge that contains nitrite nitrogen waste water under optimum conditions.
Embodiment
The present invention proposes a kind of cultural method of granular sludge by shortcut denitrification.Granule sludge of the present invention has stronger tolerance and adaptability, has shock resistance and higher nitrogen removal performance preferably; Can realize the application of short-cut denitrification denitrification process in industrial sewage is handled.
The cultural method of a kind of granular sludge by shortcut denitrification that the present invention proposes is as follows:
(1) getting a certain amount of active sludge in certain sewage work aerobic aeration pond, insert in the aerobic reactor, is that the waste water that 100～2000mg/L, COD concentration are lower than 200mg/L carries out denitrogenation mud enrichment culture with ammonia nitrogen concentration.The enrichment culture condition of described denitrogenation mud is: 20～40 ℃ of temperature; PH 6.0～9.0, and preferred 6.5～8.0; DO (dissolved oxygen) is greater than 2mgL
-1, preferred 2～10mgL
-1
(2) get in the step (1) the part granule sludge of enrichment and be inoculated in the oxygen reactor of holding concurrently and carry out the denitrification granular sludge enrichment, nitrite nitrogen in the nutrient solution and nitrate nitrogen molar ratio are 1: 1, and carbon-nitrogen ratio is 1.5: 1.0.Culturing process nutrient solution nitric nitrogen starting point concentration 100～500mg/L, final concentration is 300～1000mg/L.The enrichment culture condition is: temperature is 20～35 ℃; PH is 7.0～9.5, preferred 7.5～8.0; DO (dissolved oxygen) is less than 2mgL
-1
(3) get that the part denitrification granular sludge of enrichment is inoculated into the denitrification granular sludge enrichment that utilizes nitrite nitrogen in the oxygen reactor of holding concurrently in the step (2), carbon-nitrogen ratio is 3.0: 1.0.Culturing process nutrient solution nitrite nitrogen starting point concentration 50～300mg/L, final concentration is 200～1000mg/L, preferred 300～800mg/L.The same step of enrichment culture condition (2).
(4) denitrification granular sludge that obtains in the step (3) is tamed with being inoculated into once more in the oxygen reactor of holding concurrently, ammonia nitrogen, nitrite nitrogen and nitrate nitrogen molar ratio are 1: 2: 1 in the nutrient solution, and carbon-nitrogen ratio is 1.0: 1.0.Culturing process nutrient solution total nitrogen starting point concentration 300～600mg/L, final concentration is 600～2400mg/L.The enrichment culture condition is: temperature is 20～35 ℃; PH is 6.0～9.0, preferred 7.0～8.5; DO (dissolved oxygen) is 0.8mgL
-1
The cultivation of embodiment 1 granular sludge by shortcut denitrification
(1) enrichment culture of denitrogenation granule sludge
In certain oil refining sewerage treatment plant aerobic aeration pond, get a certain amount of active sludge, in the inoculum size access 10L aerobic reactor according to 10% (volume), carry out the enrichment culture of denitrogenation granule sludge with ammonia-containing water.The initial ammonia nitrogen concentration of nutrient solution is 200mg/L, adopts the mode of batch water inlet, and each batch water sample all improves ammonia nitrogen concentration, and increase rate is 100mg/L, and COD concentration is always 150mg/L.The enrichment culture condition of described denitrogenation mud is: 25 ℃ of temperature; PH 7.8; DO (dissolved oxygen) 2～5mgL
-1When enrichment mud can tolerate the 1000mg/L ammonia nitrogen, get part mud and change the denitrification granular sludge enrichment culture stage over to.Add the growth stimulant that the metallic cation total concn is 0.1mol/L every day in the culturing process, and additional amount is 0.1% of the interior volume of material of reactor.
(2) enrichment culture of denitrification granular sludge
The part granule sludge of getting enrichment in above-mentioned (1) is inoculated in the oxygen reactor of holding concurrently and carries out the denitrification granular sludge enrichment, and nitrite nitrogen and nitrate nitrogen in the initial incubation liquid are 100mg/L, and methanol concentration is 2.8mL/L in the nutrient solution.Improve nitrite nitrogen and nitrate nitrogen concentration in the nutrient solution in the culturing process gradually, improve 100mg/L at every turn, the concentration of carbon source also improves gradually simultaneously, and each amplitude that improves is 2.8mL/L.Add the growth stimulant that the metallic cation total concn is 0.1mol/L every day in the culturing process, and additional amount is 0.1% of the interior volume of material of reactor; Culture condition is: 25 ℃ of temperature; PH is 7.2, and DO (dissolved oxygen) is 1.0mgL
-1When nitrite nitrogen in the nutrient solution and nitrate nitrogen concentration all reach 500mg/L, change next stage over to cultivate.
(3) enrichment culture of granular sludge by shortcut denitrification and domestication
The part denitrification granular sludge of getting enrichment in above-mentioned (2) is inoculated into the granular sludge by shortcut denitrification enrichment that utilizes nitrite nitrogen in the oxygen reactor of holding concurrently, nutrient solution nitrite nitrogen starting point concentration is 300mg/L, adds 1.7mL/L methyl alcohol simultaneously in nutrient solution.Improve nitrite nitrogen concentration in the nutrient solution in the culturing process gradually, improve 100mg/L at every turn, the concentration of carbon source also improves gradually simultaneously, and each amplitude that improves is 1.7mL/L.When nitrite nitrogen concentration reaches 800mg/L in the nutrient solution, change the domestication stage over to.Initial ammonia nitrogen, nitrite nitrogen and nitrate nitrogen concentration are 200mg/L in the used nutrient solution of domestication stage, and methanol concentration is 5ml/L.Same when total nitrogen concentration reaches 1800mg/L, domestication finishes, final acquired tolerance and the strong granular sludge by shortcut denitrification of adaptive faculty.Add the growth stimulant that the metallic cation total concn is 0.1mol/L every day in the culturing process, and additional amount is 0.1% of the interior volume of material of reactor; Culture condition is: 25 ℃ of temperature; PH is 7.2, and DO (dissolved oxygen) is 0.8mgL
-1
The cultivation of embodiment 2 granular sludge by shortcut denitrification
Get a certain amount of active sludge in certain catalyzer sewage work aerobic aeration pond, the inoculum size access 10L according to 10% has in the reactor of stirring and aerating system simultaneously, at first carries out the enrichment culture of denitrogenation granule sludge with ammonia-containing water.The initial ammonia nitrogen concentration of nutrient solution is 300mg/L, adopts the mode of batch water inlet, improves ammonia nitrogen concentration in the culturing process gradually, and increase rate is 150mg/L, and COD concentration is always 200mg/L.The enrichment culture condition of described denitrogenation mud is: temperature: 35 ℃; PH:8.0; DO:2～5mgL
-1When enrichment mud can tolerate the 800mg/L ammonia nitrogen, change nutrient solution and enter the denitrification granular sludge enrichment culture stage.This stage stops aeration and only adopts stirring system, and nitrite nitrogen and nitrate nitrogen in the initial incubation liquid are 200mg/L, and methanol concentration is 2.8mL/L in the nutrient solution.Improve nitrite nitrogen and nitrate nitrogen concentration in the nutrient solution in the culturing process gradually, increase rate is 150mg/L, and the concentration of carbon source also improves gradually simultaneously, and each amplitude that improves is 2.8mL/L.When nitrite nitrogen in the nutrient solution and nitrate nitrogen concentration all reach 500mg/L, no longer increase nitrate nitrogen concentration in the nutrient solution, continue to improve the nitrite nitrogen concentration, reducing carbon source concentration simultaneously is 1.7mL/L, changes next stage over to cultivate.The nitrite nitrogen concentration improves 100mg/L at every turn, and methyl alcohol improves 1.7mL/L at every turn.When nitrite nitrogen concentration reaches 800mg/L in the nutrient solution, change the domestication stage over to.Initial ammonia nitrogen, nitrite nitrogen and nitrate nitrogen concentration are 600mg/L in the used nutrient solution of domestication stage, and methanol concentration is 5ml/L.Same when total nitrogen concentration reaches 2400mg/L, domestication finishes, final acquired tolerance and the strong granular sludge by shortcut denitrification of adaptive faculty.The oxygen culture condition of holding concurrently is: 30 ℃ of temperature; PH is 8.2, and DO is 0.2-1.0mgL
-1Add the growth stimulant that the metallic cation total concn is 0.15mol/L every day in the culturing process, and additional amount is 0.1% of the interior volume of material of reactor;
The application of embodiment 3 denitrification granular sludges in nitrogenous fertilizer waste water denitrification process
The granular sludge by shortcut denitrification that adopts embodiment 1 to obtain is handled the short distance nitration reaction water outlet of the ammonia-containing water that produces in the nitrogen fertilizer production process, in this water: COD average out to 300mg/L, NH
3-N is 35mg/L, NO
2 --N is 400mg/L, NO
3 --N is 15mg/L.The denitrification treatment condition are: 28 ℃ of temperature; PH is 7.7; DO (dissolved oxygen) is 0.4mgL
-1Water outlet COD, NH after treatment
3-N, NO
2 --N, NO
3 --N is respectively 10-20mg/L, 11mg/L, 2mg/L, 8mg/L.
The application of embodiment 4 denitrification granular sludges in the containing wastewater from catalyst denitrification process
The granular sludge by shortcut denitrification that adopts embodiment 2 to obtain carries out denitrification to the ammonia-containing water short distance nitration water outlet that produces in the Catalyst Production process and handles, and COD＜10mg/L in this water, ammonia nitrogen are 60mg/L, NO
2 --N is 800mg/L, NO
3 --N is 10mg/L.The denitrification treatment condition are: 30 ℃ of temperature; PH is 8.0; DO (dissolved oxygen) is 0.2mgL
-1, in this waste water, add quantity of methyl alcohol during processing and be 800mg/L (in COD) and make that after treatment nitrogen removal rate reaches more than 97% in the waste water.
Claims (4)
1. the cultural method of a granular sludge by shortcut denitrification comprises following content:
(1) seed sludge is inserted in the aerobic reactor, carry out the enrichment culture of denitrogenation mud with high-ammonia nitrogen low C OD waste water;
(2) with the mud of enrichment in the step (1) in the oxygen reactor of holding concurrently, carry out the enrichment second time and screen with containing nitrate nitrogen and nitrite nitrogen and COD waste water simultaneously;
(3) with the denitrification granular sludge of enrichment in the step (2) in the oxygen reactor of holding concurrently, carry out the screening of enrichment for the third time with only containing nitrite nitrogen and COD waste water, obtain with nitrite nitrogen as the final denitrification granular sludge of electron acceptor(EA);
(4) with the denitrification granular sludge that obtains in the step (3) with containing ammonia nitrogen simultaneously, nitrate nitrogen, nitrite nitrogen and COD waste water are tamed, acquisition denitrification granular sludge high to the nitrite nitrogen removal efficiency when variform nitrogen exists jointly;
In step (1) the enrichment denitrification activity mud, culturing process nutrient solution ammonia nitrogen starting point concentration is 100～1000mg/L, and final ammonia nitrogen concentration is 1200～3000mg/L, and nutrient solution COD value is lower than 400mg/L; Seed sludge is taken from the active sludge of oil refining sewerage treatment plant and the active sludge of catalyzer sewage work;
Nitric nitrogen starting point concentration 100～500mg/L in step (2) waste water, final concentration is 400～1600mg/L, the molar ratio of nitrate nitrogen and nitrite nitrogen is 1: (1～5), carbon-nitrogen ratio are (1-5): 1;
Only contain nitrite nitrogen in step (3) waste water, carbon-nitrogen ratio is (0.5～5): 1, and culturing process nutrient solution nitrite nitrogen starting point concentration 50～300mg/L, final concentration is 200～1000mg/L;
Total nitrogen starting point concentration 300～600mg/L in step (4) waste water, final concentration is 600～2100mg/L, the molar ratio of ammonia nitrogen, nitrate nitrogen and nitrite nitrogen is 1: (1～3): (1～5), carbon-nitrogen ratio are (0.2～5): 1; The enrichment culture condition is: temperature is 20～35 ℃; PH is 6.0～9.0; Dissolved oxygen is less than 2mgL
-1
The mode of all taking in the described step to improve main matrix concentration in the waste water is gradually carried out enrichment and domestication, takes intermittent water inflow mode or continuously water intake mode or external phase bonded water intake mode more intermittently earlier;
All use growth stimulant in the culturing sludge process, growth stimulant comprises Fe
2+, Mg
2+, K
+, Ca
2 +Four kinds of metallic cations, the mole allocation ratio of four kinds of metallic cations is 1: (4-8): (5-15): (1-5).
2. it is characterized in that in accordance with the method for claim 1: required ammonia nitrogen adopts (NH
4)
2SO
4Or urea; Required nitric nitrogen is nitrate or nitrite.
3. it is characterized in that in accordance with the method for claim 1: the enrichment culture condition of the described denitrogenation mud of step (1) is: 20～40 ℃ of temperature; PH6.0～9.0; Dissolved oxygen is greater than 2mgL
-1
4. it is characterized in that in accordance with the method for claim 1: step (2) enrichment culture condition is: temperature is 20～35 ℃; PH is 7.0～9.5; Dissolved oxygen is less than 2mgL
-1
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| CN102092846B (en) * | 2010-12-15 | 2012-09-05 | 南京工业大学 | Continuous culture method of aerobic granular sludge with synchronous denitrification and decarbonization |
| CN105624087B (en) * | 2014-10-28 | 2019-12-10 | 中国石油化工股份有限公司 | Promoter for culturing nitrifying bacteria and preparation method thereof |
| CN107311307B (en) * | 2016-04-26 | 2020-10-16 | 中国石油化工股份有限公司 | Treatment method of refractory organic wastewater |
| CN108118022B (en) | 2016-11-29 | 2020-09-11 | 中国石油化工股份有限公司 | Microbial culture promoter for completing denitrification process and application thereof |
| CN108117158B (en) * | 2016-11-29 | 2020-09-11 | 中国石油化工股份有限公司 | Rapid culture method of denitrified granular sludge |
| CN108862576B (en) * | 2018-06-01 | 2022-07-15 | 浙江海洋大学 | Method for enhancing starting and operating performance of shortcut nitrification and denitrification integrated process |
| CN113105065A (en) * | 2021-03-16 | 2021-07-13 | 哈尔滨工业大学 | Two-stage membrane aeration granular sludge expanded bed reaction device for treating urine and treatment method thereof |
| CN113354080A (en) * | 2021-06-10 | 2021-09-07 | 河北工程大学 | Culture method and application of denitrification granular sludge |
| CN114031188B (en) * | 2021-11-26 | 2022-08-23 | 南京高科环境科技有限公司 | Method for biodegrading organic micropollutants |
| CN115093019B (en) * | 2022-06-23 | 2024-01-23 | 西安交通大学 | Culture method of high-activity partial denitrification granular sludge |
| CN115259556A (en) * | 2022-07-26 | 2022-11-01 | 上海净豚环保科技有限公司 | Proliferation and cultivation method of anaerobic granular sludge for papermaking wastewater |
| CN117658317B (en) * | 2023-12-06 | 2024-06-04 | 杭州绿能环保发电有限公司 | Denitrifying carbon source with low sludge yield and garbage leachate treatment method using carbon source |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101434915A (en) * | 2007-11-15 | 2009-05-20 | 中国石油化工股份有限公司 | Method for cultivating nitrosobacteria flora and method for treating wastwater containing ammonia nitrogen |
-
2009
- 2009-05-25 CN CN2009100117599A patent/CN101898828B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101434915A (en) * | 2007-11-15 | 2009-05-20 | 中国石油化工股份有限公司 | Method for cultivating nitrosobacteria flora and method for treating wastwater containing ammonia nitrogen |
Non-Patent Citations (3)
| Title |
|---|
| JP平4-171098A 1992.06.17 |
| 王怡等.反硝化颗粒污泥研究.《环境科学与技术》.2004,第27卷(第1期),第15-17页、第50页. * |
| 金雪标等.一种高速反硝化颗粒污泥的培养.《环境污染治理技术与设备》.2006,第7卷(第8期),第52-56页. * |
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