CN103319000B - Enrichment of low temperature resistant autotrophic nitrification microbial agent and its application in wastewater treatment - Google Patents
Enrichment of low temperature resistant autotrophic nitrification microbial agent and its application in wastewater treatment Download PDFInfo
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- CN103319000B CN103319000B CN201310296780.4A CN201310296780A CN103319000B CN 103319000 B CN103319000 B CN 103319000B CN 201310296780 A CN201310296780 A CN 201310296780A CN 103319000 B CN103319000 B CN 103319000B
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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
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- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
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- Y02W10/10—Biological treatment of water, waste water, or sewage
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Abstract
The invention relates to enrichment of a low temperature resistant autotrophic nitrification microbial agent and its application in wastewater treatment. According to the microbial agent, ammonia nitrogen is used as the only nitrogen source in the low-temperature environment of 10 DEG C, and ammonia nitrogen is highly efficiently removed in an aerobic environment. Activity maintenance of nitrobacteria under the condition of low temperature and continuous nitrification rate are fully realized. The microbial agent belongs to an autotrophic microbial agent, can cooperate well with an activated sludge system of a common sewage treatment system, and can be applied without the addition of an organic carbon source. After one-time addition of a small amount of the microbial agent, strengthening effect is rapidly shown. When the microbial agent is applied in actual sewage treatment, ammonia nitrogen can be highly efficiently removed under the condition of low temperature in a sewage treatment plant. Thus, the problem that it is hard to discharge ammonia nitrogen up to the standard in a traditional sewage treatment plant in winter is solved well. The microbial agent provided by the invention has a wide application and popularization prospect.
Description
Technical field
The present invention relates to a kind of enrichment of low temperature resistant Autotrophic nitrification microbial inoculum and the application in wastewater treatment thereof.This microbial inoculum can not only be under cold condition (10 ℃) normal growth and breeding, there is very strong nitrification effect simultaneously.In addition, this microbial inoculum for common sequencing batch activated sludge reactor (SBR) the strengthening effect highly significant under cold condition.
Background technology
Along with the fast development of China's economy, water environmental problems becomes increasingly conspicuous.Wherein, body eutrophication problem directly exceeds standard relevant with the nitrogen phosphorus that enters natural water.At present, for the research majority of town sewage Denitrogenation, concentrate on economy, bioremediation and system efficiently, the ammonia nitrogen water outlet of urban wastewater treatment firm at present can realize qualified discharge substantially.
Water body biological denitrificaion is generally divided into two steps to be completed: (1), by the effect of ammonia oxidizing bacteria (AOB), changes the ammonia-state nitrogen in sewage into nitrite nitrogen; (2) by the effect of nitrite nitrogen oxidizing bacteria (NOB), change nitrite nitrogen into nitric nitrogen.Yet AOB and NOB growth and breeding speed and activity all can significantly reduce under cold condition, the effect of nitrification is very undesirable.China is vast in territory, and most areas are in temperate zone, and changes in temperature are clearly demarcated throughout the year.Therefore, in cold winter, the ammonia nitrogen removal effect of a lot of sewage works is low, and water outlet ammonia nitrogen concentration is difficult to meet emission standard.For fear of the discharge of a large amount of below standard sewage in winter, under cold condition, the research of ammonia nitrogen removal is extremely urgent.
Low temperature test chamber in prior art, in the sewage work of medium above scale, is all equipped with; therefore in the common response device of processing synthetic sewage, all can contain the low temperature resistant nitrifier of minute quantity or trace; only because content is extremely low; be difficult to mass-producing and use, adopt usual way enrichment in a large number at short notice simultaneously.The invention provides a kind of method that makes its enrichment, strengthening.Present method is carried out in accordance with the following steps: the enrichment of (1) Autotrophic nitrification microbial inoculum: under 10 ℃ of cold condition, adopt without the synthetic sewage domestication of the high ammonia nitrogen of organic carbon and the low temperature resistant Autotrophic nitrification flora of enrichment; (2) rapid amplifying of Autotrophic nitrification microbial inoculum: by expanding enrichment reactor volume, increase enrichment system ammonia nitrogen every day bearing capacity, improving aeration rate, further increase quantity and the ratio of low temperature resistant Autotrophic nitrification bacterium; (3) building of the common SBR of strengthening: build a series of identical SBR at cold condition, perfusion common sludge, adopts the synthetic sewage similar with ammonia nitrogen to town sewage COD to move to stable water outlet; (4) microbial inoculum strengthening and effect optimization: according to the nitrification ability of Autotrophic nitrification microbial inoculum, by various dose, each group reaction device is strengthened respectively, optimized strengthening operating parameter simultaneously, obtain best strengthening effect.
First the present invention provides a kind of enriching method with the Autotrophic nitrification microbial inoculum of low temperature tolerance characteristics, it is characterized in that enriching method is:
Select the kind mud in the low-temp reaction device of laboratory to tame and enrichment, be specially:
First stage: to cultivate enrichment without organic carbon, the synthetic sewage of high ammonia nitrogen, aeration rate is 10L/min, aeration time 22h, each cycle 24h, discharge rate 50% in the SBR of 5L; Subordinate phase: to cultivate enrichment without organic carbon, the synthetic sewage of high ammonia nitrogen, aeration rate is 40L/min, aeration time 22h, each cycle 24h, discharge rate 80% in the SBR of 25L; Phase III: to cultivate enrichment without organic carbon, the synthetic sewage of high ammonia nitrogen, aeration rate is 82L/min, aeration time 22h, each cycle 24h, discharge rate 80% in the SBR of 50L;
Obtain having the Autotrophic nitrification microbial inoculum of low temperature tolerance characteristics, wherein said synthetic sewage is containing 115-125mg/LNH
4 +-N, 20-24mg/L PO
4 4--P, containing organic carbon source, NO
2 --N and NO
3 --N, is used NaHCO
3pH as buffer reagent regulation system;
The three phases of enrichment is all realized in 10 ℃ of low hot houses of temperature control;
During enrichment, in system, the scope of dissolved oxygen is 5-11mg/L, and the scope of pH is 7.0-8.0.
The present invention provides a kind of application of above-mentioned Autotrophic nitrification microbial inoculum in wastewater treatment that utilize simultaneously, and (1) selects the SBR of proper volume, initially adds the common sludge of taking from sewage work of about 3000mg/L, moves to stable under 10 ℃ of cold condition; (2) add the low temperature resistant Autotrophic nitrification microbial inoculum of doses; (3) cycle of operation of system is 6h, the DO in Controlling System, temperature and pH value, and whole process is for the COD of water inlet and water outlet, NH simultaneously
4-N, NO
2-N, NH
3-N and DO monitor.
The disposable dosage of wherein said Autotrophic nitrification microbial inoculum is 0.04～0.6g microbial inoculum/L working volume.
It is preferred, and the cycle of operation of system is water inlet 0.5h, anaerobism section 1.0h, aerobic section 3.5h, standing 0.9h, water outlet 0.1h.Intrasystem DO is that 0.3-0.5 (anaerobism section) and 6.0-8.0 (aerobic section), temperature are that 10 ℃, pH value are 7.0-8.0.
The acquisition of the low temperature resistant Autotrophic nitrification microbial inoculum of the present invention, not only makes the ammonia nitrogen water outlet problem of exceeding standard of sewage work in winter be solved, and also has following advantage:
(1) this microbial inoculum nitrification effect under cold condition is very excellent, and the highest nitrated specific degradation rate can reach 8.85mg NH
4-N/ (g SSh), exceeds the nitrification effect of low temperature resistant pure bacterium and microbial inoculum in general document.
(2) this microbial inoculum, completely without organic carbon source, has greater advantage to the town sewage of low COD.Can under cold condition, remove high-ammonia-nitrogen sewage, clearance can reach more than 99% simultaneously.
(3) in strengthening process, to add dosage less for this microbial inoculum, minimum 0.04g microbial inoculum/L working volume that reaches.The time of simultaneously bringing into play strengthening effect is rapid, the most only needs can realize for 2 days 99% above sewage ammonia nitrogen and removes.
(4) adopt the present invention under cold condition, common SBR to be strengthened, without back and forth adding, there is disposable adding and can stablize maintenance good result.
(5) the present invention is applicable to the ammonia nitrogen removal processing of the various waste water of China's winter, has a extensive future, and has good social benefit.
Below in conjunction with embodiment, describe the present invention.Persons of ordinary skill in the art may appreciate that embodiment is only illustrational object, scope of the present invention is not limited with specific implementation method, but is limited by the scope of claim.
Summary of the invention
The present invention aims to provide a kind of have the Autotrophic nitrification microbial inoculum of low temperature tolerance characteristics and the application in wastewater treatment thereof.
Accompanying drawing explanation
Under accompanying drawing 1 cold condition, Autotrophic nitrification microbial inoculum is for common SBR intensifying device schematic diagram, and wherein 1 is pump sump, and 2 is intake pump, and 3 is aeration pump, and 4 is electronic timer, and 5 is gas meter, and 6 is magnetic valve, and 7-10 is respectively 1#-4# reactor.
The degradation curve of the low temperature resistant Autotrophic nitrification microbial inoculum of accompanying drawing 2 to ammonia nitrogen
The low temperature resistant Autotrophic nitrification microbial inoculum of accompanying drawing 3 under various dose for the low-temperature reinforcement effect of common SBR
Concrete embodiment
In embodiment, the method for monitoring and analyzing of various pollutents is with reference to < < water and effluent monitoring analytical procedure > > (the 4th edition, China Environmental Science Press, 2002).Temperature and dissolved oxygen are measured by portable dissolved-oxygen content analyser (YSI550A, USA).Sludge concentration (MLSS) and volatile suspended solid concentration (MLVSS) are according to gravimetric determination.
The various units that use in embodiment, the unified national standard that adopts.
Embodiment 1: the enrichment of low temperature resistant Autotrophic nitrification microbial inoculum under cold condition
The common low temperature test chamber processing of usining is synthesized the excess sludge taking out in the sequencing batch activated sludge reactor (taking from Beijing University's environmental engineering institute low temperature test chamber) of sewage and is tamed and enrichment under cold condition as kind of mud.Because nitrifier is autotrophic bacteria, thereby adopt and to carry out enrichment without organic carbon, high ammonia-nitrogen wastewater, to maximize, obtain Autotrophic nitrification bacterium.The process of whole domestication and enrichment is divided into following three steps:
(1) in the SBR of 5L, to synthesize sewage without the high ammonia nitrogen of organic carbon, cultivate enrichment, aeration rate is 10L/min, aeration time 22h, each cycle 24h, discharge rate 50%;
(2) in the SBR of 25L, to synthesize sewage without the high ammonia nitrogen of organic carbon, cultivate enrichment, aeration rate is 40L/min, aeration time 22h, each cycle 24h, discharge rate 80%;
(3) in the SBR of 50L, to synthesize sewage without the high ammonia nitrogen of organic carbon, cultivate enrichment, aeration rate is 82L/min, aeration time 22h, each cycle 24h, discharge rate 80%;
Collect resulting composite fungus agent, it has outstanding rate of nitrification under cold condition in aerobic environment.
What this wherein used contains 115-125mg/L NH without the synthetic sewage of the high ammonia nitrogen of organic carbon
4 +-N, 20-24mg/L PO
4 4--P, containing organic carbon source, NO
2 --N and NO
3 --N, is used NaHCO
3pH as buffer reagent regulation system.
The design parameter of enrichment three phases and the ammonia nitrogen specific degradation rate finally obtaining are as shown in table 1.
The effect of the cold-resistant Autotrophic nitrification bacterium of table 1 enrichment three phases
The actual degradation time of a is that in system, ammonia nitrogen is removed the required time completely.It is generally less than the time span of each cycle.
B numerical value is taken at the one-period in per latter stage in stage.
The unit of c ammonia nitrogen specific degradation rate is mg NH
4 +-N/ (g suspended solids h).In bracket, the unit of numerical value (rate of nitrification) is mgNH
4 +-N/ (Lh).
As can be seen here, from stage 1 to the stage 3, the Nitrification of low temperature sludge grows steadily, and the specific degradation rate of ammonia nitrogen is from 4.83mg NH
4 +-N/ (g SSh) brings up to 8.85mg NH
4 +-N/ (g SSh), illustrates that in mud, the content of cold-resistant nitrifier significantly increases, and has reached the object of efficiently concentrating.
Embodiment 2: the mensuration of low temperature resistant Autotrophic nitrification microbial inoculum nitrification ability under cold condition
The cold-resistant Autotrophic nitrification microbial inoculum of a certain amount of embodiment 1 stages 3 enrichment is poured in 5L SBR, makes initial MLSS be about 3000mg/L.Add without the synthetic sewage of the high ammonia nitrogen of organic carbon the nitrification ability under its cold condition is measured.Aeration control is 10L/min, makes initial DO be about 4-5mg/L.Every 1h, sample 8mL in 10mL centrifuge tube, and measure intrasystem DO, temperature and pH value.Liquid sample is centrifugal 5min under 8000rpm, gets supernatant liquor and measures NH
4 +-N, NO
2 --N, NO
3 --N, DO and temperature.Intrasystem pH is controlled at 7.0 left and right.
Experimental result as shown in Figure 2.As seen from the figure, under cold condition, in system, the concentration of ammonia nitrogen reduces rapidly from initial 119mg/L, and eliminates completely after 8h.Answer in contrast, nitrite nitrogen and nitrate rise rapidly.Wherein the peak value of nitrite nitrogen concentration appears at 3h, is all converted into afterwards nitric nitrogen.Mineralized nitrogen be the ratio of nitre nitrogen more than 99%, DO rises to 12.0 left and right from 5.0 left and right simultaneously.Explanation thus, under cold condition (envrionment temperature is 10 ℃), the low temperature resistant effect of this microbial inoculum is remarkable, has realized the efficient removal without ammonium salt in organic carbon high ammonia-nitrogen wastewater simultaneously.
Embodiment 3: low temperature resistant Autotrophic nitrification microbial inoculum is for common SBR low-temperature reinforcement effect and optimization
In the low hot house of computer control temperature, (envrionment temperature is 10 ℃) builds 4 identical 5LSBR (1#, 2#, 3# and 4# reactor), as shown in Figure 1.The common sludge of inoculation is taken from sewage work's (on September 20th, 2012), makes 4 initial MLSS of reactor be 3000mg/L.The cycle of operation of system is 6h (water inlet 0.5h, aeration 4h, standing 1h, water outlet 0.5h), and discharges 50% supernatant liquor in the end of term in week.The synthetic sewage using consists of 0.255g/L sodium acetate (200COD), 0.191g/L NH
4cl, 0.044g/L KH
2pO
4, 0.2g/L CaCl
22H
2o, 0.5g/L NaHCO
3.HRT and SRT are respectively 12h and 15 days.In system, DO is 5.8-7.1mg/L.After normally moving 14 days, 4 reactor stable water outlet and approaching, MLSS rises to 3500mg/L simultaneously.
Using R1 as blank group, respectively at 2# to the Autotrophic nitrification microbial inoculum that adds 3g, 0.2g and 0.4g in 4# reactor.Starting mode is the vexed 24-36h that exposes to the sun, afterwards according to original periodic duty.Adding microbial inoculum after 10 days, each cycle aeration time shortens as 3h, and each cycle becomes 5h and continues operation.Object is that observation reduces aeration time and improves ammonia nitrogen loading for the impact of system.
In whole process, select at random every day one-period at standing phase sampling 8mL in 10mL centrifuge tube, and under 8000rpm centrifugal 5min, get supernatant liquor and measure NH
4 +-N, NO
2 --N, NO
3 --N and COD.Gained monitoring result as shown in Figure 3.As seen from the figure, influent ammonia nitrogen maintains 50mg/L left and right.By the prerun of initial two weeks, the water outlet ammonia nitrogen concentration of 4 reactors was all in 20mg/L left and right.After having added the low temperature resistant Autotrophic nitrification microbial inoculum of various dose, 2# to 4# has strengthening effect in various degree.For 2#, after adding 3g microbial inoculum, by the vexed startup of exposing to the sun of 24h, at the second day ammonia nitrogen adding, going out water concentration has significantly reduction, at the 3rd day, has even reached more than 99%.For 3# and 4#, because initial add-on is 0.2g and 0.4g, after vexed the exposing to the sun of 36h, ammonia nitrogen goes out water concentration and is reduced to respectively 10mg/L and 6mg/L, and effect still obviously.After in service, ammonia nitrogen goes out water concentration and declines steadily, adds that after 10 days, to go out water concentration be 4mg/L and 1.5mg/L.When aeration time reduces and improves after ammonia nitrogen loading, 2# still keeps 99% above ammonia nitrogen removal frank.3# and 4# are also uninfluenced, after microbial inoculum adds, within the 15th day, have reached 99% clearance, also maintain preferably afterwards stable.In contrast should, 1# is as blank group, in the cultivation of 35 days, ammonia nitrogen goes out water concentration all more than 15mg/L, illustrates that common sludge of sewage treatment plant has poor effect under cold condition.
As can be seen here, this Autotrophic nitrification microbial inoculum is remarkable to common SBR strengthening effect under cold condition.In addition,, without repeatedly adding microbial inoculum, the system after strengthening has good impact resistance to reducing aeration time and improving ammonia nitrogen loading.
Claims (6)
1. an enriching method with the Autotrophic nitrification microbial inoculum of low temperature tolerance characteristics, is characterized in that enriching method is:
Select the kind mud in the low-temp reaction device of laboratory to tame and enrichment, be specially:
First stage: to cultivate enrichment without organic carbon, the synthetic sewage of high ammonia nitrogen, aeration rate is 10L/min, aeration time 22h, each cycle 24h, discharge rate 50% in the SBR of 5L; Subordinate phase: to cultivate enrichment without organic carbon, the synthetic sewage of high ammonia nitrogen, aeration rate is 40L/min, aeration time 22h, each cycle 24h, discharge rate 80% in the SBR of 25L; Phase III: to cultivate enrichment without organic carbon, the synthetic sewage of high ammonia nitrogen, aeration rate is 82L/min, aeration time 22h, each cycle 24h, discharge rate 80% in the SBR of 50L;
Obtain having the Autotrophic nitrification microbial inoculum of low temperature tolerance characteristics, wherein said synthetic sewage is containing 115-125mg/L NH
4 +-N, 20-24mg/LPO
4 4--P, containing organic carbon source, NO
2 --N and NO
3 --N, is used NaHCO
3pH as buffer reagent regulation system.
2. enriching method according to claim 1, is characterized in that the three phases of enrichment is all realized in 10 ℃ of low hot houses of temperature control.
3. enriching method according to claim 1, while it is characterized in that enrichment, in system, the scope of dissolved oxygen is 5-11mg/L, the scope of pH is 7.0-8.0.
4. the application of Autotrophic nitrification microbial inoculum claimed in claim 1 in wastewater treatment, (1) selects the SBR of proper volume, initially adds the common sludge of taking from sewage work of about 3000mg/L, moves to stable under 10 ℃ of cold condition; (2) add the low temperature resistant Autotrophic nitrification microbial inoculum of doses; (3) system each cycle is 6h, adopts treatment sewage, the DO in Controlling System, temperature and pH value, and whole process is for the COD of water inlet and water outlet, NH simultaneously
4 +-N, NO
2 --N, NH
3-N and DO monitor.
5. application according to claim 4, is characterized in that the disposable dosage of described Autotrophic nitrification microbial inoculum is 0.04～0.6g microbial inoculum/L working volume.
6. application according to claim 5, in one day 4 cycle, intrasystem DO is that the DO of anaerobism section is that 0.3-0.5mg/L, the good DO that supports section are that 6.0-8.0mg/L, temperature are that 10 ℃, pH value are 7.0-8.0.
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| CN111606509A (en) * | 2020-05-20 | 2020-09-01 | 苏州首创嘉净环保科技股份有限公司 | Low-temperature bacterium proportioning culture method for sewage treatment |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101555068A (en) * | 2009-04-17 | 2009-10-14 | 北京工业大学 | Culture method of aerobic granular sludge for simultaneous denitrification and dephosphorization of domestic sewage at low and normal temperature |
| CN102061276A (en) * | 2010-11-15 | 2011-05-18 | 北京大学 | Pseudomonas sp. strain for biological denitrification under low temperature and application thereof |
| CN102259975A (en) * | 2011-05-27 | 2011-11-30 | 甘肃金桥给水排水设计与工程(集团)有限公司 | Bio-augmentation technique for treating high ammonia nitrogen waste water under low temperature condition |
| KR20120027979A (en) * | 2010-09-14 | 2012-03-22 | 바이오밴코리아(주) | The microbial seeds which having excellent wastewater treatment ability and producing method for the sames and the wastewater treatment method |
| CN102559542A (en) * | 2011-12-14 | 2012-07-11 | 首创爱华(天津)市政环境工程有限公司 | Strain Pandoraea sp. for removing ammonia nitrogen in sewage under low-temperature condition and isolated culture method |
| CN102690765A (en) * | 2012-05-08 | 2012-09-26 | 哈尔滨工业大学宜兴环保研究院 | Low-temperature aerobic denitrifying strain Pseudomonas psychrophila Den-03 and screening method and application thereof |
-
2013
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101555068A (en) * | 2009-04-17 | 2009-10-14 | 北京工业大学 | Culture method of aerobic granular sludge for simultaneous denitrification and dephosphorization of domestic sewage at low and normal temperature |
| KR20120027979A (en) * | 2010-09-14 | 2012-03-22 | 바이오밴코리아(주) | The microbial seeds which having excellent wastewater treatment ability and producing method for the sames and the wastewater treatment method |
| CN102061276A (en) * | 2010-11-15 | 2011-05-18 | 北京大学 | Pseudomonas sp. strain for biological denitrification under low temperature and application thereof |
| CN102259975A (en) * | 2011-05-27 | 2011-11-30 | 甘肃金桥给水排水设计与工程(集团)有限公司 | Bio-augmentation technique for treating high ammonia nitrogen waste water under low temperature condition |
| CN102559542A (en) * | 2011-12-14 | 2012-07-11 | 首创爱华(天津)市政环境工程有限公司 | Strain Pandoraea sp. for removing ammonia nitrogen in sewage under low-temperature condition and isolated culture method |
| CN102690765A (en) * | 2012-05-08 | 2012-09-26 | 哈尔滨工业大学宜兴环保研究院 | Low-temperature aerobic denitrifying strain Pseudomonas psychrophila Den-03 and screening method and application thereof |
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