CN104129853A - Starting method for rapid and efficient short-cut nitrification - Google Patents
Starting method for rapid and efficient short-cut nitrification Download PDFInfo
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- CN104129853A CN104129853A CN201410321168.2A CN201410321168A CN104129853A CN 104129853 A CN104129853 A CN 104129853A CN 201410321168 A CN201410321168 A CN 201410321168A CN 104129853 A CN104129853 A CN 104129853A
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Abstract
The invention discloses a starting method for rapid and efficient short-cut nitrification. The method comprises the following steps: guiding inoculated sludge which is rich in nitrobacteria into an SBR (Sequencing Batch Reactor) reactor; guiding sewage into the SBR reactor in order that the concentration of the sludge in the reactor becomes 2,500-3,500mg/L, and controlling the temperature of the sewage at 30+/-1 DEG C and the pH of the sewage at 7.9-8.2; starting an aeration facility in the reactor in order that the concentration of dissolved oxygen becomes 0.8-1.2mg/L; performing aeration for 1.5-2.5 hours; stopping aeration, and starting to stir for 0.5-1.5 hours to uniformly mix the sludge and the sewage; repeatedly aerating and stirring operation for 1-5 times; standing the mixture for separating a solid from a liquid; and draining supernatant. By performing the short-cut nitrification in an intermittent aeration way, the growth of AOB (Ammonia Oxidizing Bacteria) can be better facilitated, a nitrification reaction is restrained, the energy consumption of a reaction device can be lowered effectively, and the starting of the short-cut nitrification of domestic sewage with low ammonia nitrogen content can be realized in comparison to the conventional continuous aeration.
Description
Technical field
The invention belongs to sewage treatment area, relate to a kind of starting method of rapidly and efficiently short distance nitration, particularly under low ammonia nitrogen condition, technique and the method for the accumulation problem of the realization of short distance nitration and nitrite.
Background technology
Current sewage water denitrification is still taking conventional biological nitration/denitrification as main, although compare physics, chemical method denitrogenation has cost advantage, but still there is the shortcomings such as efficiency is low, energy and material consumption is high, surplus sludge volume is large.Along with to the going deep into of nitrogen transformation approach understanding, the inherent defect existing for traditional denitrification process and developed series of new denitrification process.As anaerobic ammonia oxidation process, short-cut nitrification and denitrification technique etc.Compared with traditional denitrification process, anaerobic ammonia oxidation process and short-cut nitrification and denitrification technique are as the cutting edge technology of current sewage water denitrification processing, save aeration rate owing to having, save required organic carbon source, save energy consumption, Reaction time shorten, significantly reduce the advantages such as the sludge quantity that produces, for current sewage water denitrification technology provides a new research direction, particularly pursue under the situation of high-efficiency low energy consumption for current sewage disposal, be more and more subject to people's attention.
Short distance nitration is as ANANMOX(Anammox Anaerobic Ammoniu Oxidation, Anammox) and the prerequisite of short-cut nitrification and denitrification technique, the otherness of utilizing ammonia oxidation bacteria (AOB) and NOB (NOB) nitrogen transformation, by ammonia nitrogen oxidation control at NO
2 --N the stage, save in traditional biological denitrogenation and become nitrate by nitrite-oxidizing, restore into two links of nitrite, how to realize efficient nitrite accumulation and restricting the development of Anammox and denitrification process.
The current main technique method that realizes short distance nitration has: the SHARON short distance nitration technique that the people such as Hellinga propose for high temperature high ammonia-nitrogen wastewater, 35 DEG C of left and right by high ammonia-nitrogen wastewater is processed in a complete hybrid-type reactor, control hydraulic detention time (HRT) and equal sludge retention time (SRT), realize short distance nitration.SHARON short distance nitration technique is mainly used in digested sludge dehydration liquid processing, percolate and the high ammonia-nitrogen wastewater processing such as waste water of raising pigs.Han Xiaoyu etc. (short distance nitration taking FA and FNA as controlling elements starts and maintains [J]. environmental science, 2009,03) adopt Continuous Flow A/O reactor for treatment digested sludge dehydration liquid to adopt FA(free ammonia) with the FNA(nitrite that dissociates) combine suppressor mode and realize stable short distance nitration, this method impact on short distance nitration under high ammonia nitrogen condition mainly for FA and FNA, has certain limitation.(the impact [J] of pH value on pig farm breeding wastewater normal temperature short distance nitration characteristic such as Yan Lilong.Agricultural mechanical journal, 2011,42(10)) adopt water inlet 5 min, aeration 300 min, precipitation 40 min, draining 10 min, idle 5min, the operational mode of moving 4 cycles every day has realized the nitrosification of high ammonia nitrogen pig farm breeding wastewater, pH value is 7. 0～9. 5, nitrite accumulation rate is between 75%～80%, this research is mainly for high ammonia-nitrogen wastewater, and adopt the unidirectional control flow of traditional short distance nitration process using, short distance nitration rate is low, and easily occurs the conversion of nitrite to nitrate.
The visible current research of the short distance nitration for high ammonia-nitrogen wastewater is comparatively ripe, for the short distance nitration of the city domestic sewage of low ammonia nitrogen, because its substrate concn is low, the short distance nitration achievement that the features such as ammonia oxidation bacteria cultivation domestication is slow are comparatively ripe is less, and great majority are all in the experimental study stage, and occur that how maintaining its steady in a long-term existence after nitrite accumulation is the key of short range biological denitrification technology; And the unidirectional control flow of traditional short distance nitration process using, the i.e. operation scheme of " water inlet → stirring → aeration → precipitation → water outlet ", wherein, generally regulates according to the variation of pH for the control of aeration time, practical operation is more difficult, and existing automatic control technology is difficult to satisfy the demand; On the other hand, AOB is very easily subject to the impact of dissolved oxygen (DO), due to the more difficult control of aeration time, easily causes nitrite to be oxidized to nitrate, is unfavorable for the growth of short distance nitration ammonia oxidation bacteria, stable realize nitrosification and still has certain difficulty; Still there is the low problem of starting efficiency in the domestication of the propagation of short distance nitration bacterial classification AOB particularly.
CN102173536B discloses a kind of high-efficiency short-range nitration method of realizing in nitrification tank with inhibitor, the method is by arranging equalizing tank, nitrification tank and settling tank, by the effect of autotroph, in liquid, part or all of ammonia nitrogen is oxidized to nitrite nitrogen; The mud mixture flowing out from nitrification tank precipitates settling tank, and after solid-liquid separation, water outlet enters denitrification tank, and mud enters nitrification tank through recycle pump; Before nitrification tank, be provided with an equalizing tank, ammonia nitrogen on-line determination device is housed in equalizing tank, the flow of intake pump and recycle pump.The influent ammonium concentration of the method, at 500～2000mg/L, is not suitable for the low ammonia nitrogen waste water of influent ammonium concentration lower than 50mg/L.And the parameters such as the hydraulic detention time of the method need to regulate and control according to influent ammonium concentration, lack the operating parameter of system, operation is comparatively complicated, is unfavorable for actual production.CN101638267A discloses a kind of quick start method of ammonia-containing water short distance nitration, by adopting andnon-continuous operation manner, from ammonia nitrogen starting point concentration, 200 ~ 300mg/L is progressively increased to 400 ~ 700mg/L, pH=7.8 ~ 8.5, the hydraulic detention time of operate continuously mode is 14 ~ 20h, has realized the quick startup of short distance nitration; But the method employing ammonia nitrogen concentration is started to be incremented to gradually the mode of 100mg/L by 50mg/L, and in reality, the concentration of nitrogenous effluent is stable substantially, and the method practical operation is more difficult, and is not suitable for low ammonia nitrogen city domestic sewage.
Therefore, a set of fast and stable of urgent need research and development is realized the treatment technology of low ammonia waste water short distance nitration, for consumption reduction, the reduction of discharging of urban sewage treatment process provide new thinking.
Summary of the invention
In order to solve the problem of above-mentioned existence, the present invention adopts sequence batch ((SBR) bio-reactor, adopt intermittent aeration mode, and in conjunction with specific temperature, dissolved oxygen, pH, solve and in current short distance nitration technique (short distance nitration of especially low ammonia nitrogen sanitary sewage), had the problems such as ammonia oxidation bacteria (AOB) proliferate efficiency is slow, nitrite accumulation efficiency is low, short distance nitration start-up period is long.
The object of the present invention is to provide a kind of starting method of rapidly and efficiently short distance nitration.
The technical solution used in the present invention is:
A rapidly and efficiently starting method for short distance nitration, comprises the following steps:
1) seed sludge that is rich in nitrobacteria is imported in sbr reactor device;
2) water inlet: it is 2500 ~ 3500mg/L that treatment sewage is imported to the concentration MLSS that sbr reactor device makes mud in reactor, controlling sewage temperature is 30 ± 1 DEG C, pH 7.9 ~ 8.2;
3) aeration: start the aeration facility in sbr reactor device, making in reactor is aerobic environment, and wherein dissolved oxygen concentration is 0.8～1.2mg/L; Aeration time is 1.5 ~ 2.5h;
4) close aeration facility, open and stir facility simultaneously, make muddy water in sbr reactor device close stirring facility after fully mixing; Churning time is 0.5 ~ 1.5h;
5) 1～5 step 3) of repetition and step 4);
6) stop after aeration and stirring, standing and reacting device, makes material natural sedimentation in it, makes solid-liquid separation;
7) water outlet: discharge supernatant liquor.
Further, in step 1), seed sludge concentration MLSS is 4500～5000mg/L.
Further, step 2) in, the chemical oxygen demand COD of described sewage is 150 ~ 200mg/L.
Further, step 2) in, the ammonia nitrogen concentration of described sewage is more than 40mg/L.
Further, step 2) in, the ammonia nitrogen concentration of described sewage is 40 ~ 60mg/L.
Further, in step 6), the time of described natural sedimentation is 0.5h ~ 1h.
Further, after step 7) completes, in reactor, fill into new treatment sewage, enter the period run of next round.
The invention has the beneficial effects as follows:
1) the present invention has established comparatively complete short distance nitration implementation method, comprise the multiplication culture that how to carry out ammonia oxidation bacteria, and realize nitrite maximize accumulation control condition, the problems such as the bacterial classification propagation that SBR technique occurs in short distance nitration process is slow, ammonia nitrogen conversion efficiency is low are effectively solved by biofilm mode, for engineering actual motion is laid a good foundation.
2) proposition of the invention intermittent aeration mode carry out short distance nitration, than traditional continuous aeration, for promoting the growth of AOB, and suppress having an effect obviously of nitration reaction, and can effectively reduce the energy consumption of reaction unit.
3) the invention provides and adopt SBR(sequencing batch active sludge) technique, each controlling factor that realizes for the short distance nitration of the city domestic sewage of low ammonia nitrogen comprises temperature, dissolved oxygen, pH, the design parameter settings such as intermittent aeration working time, have novelty meaning for removing ammonia nitrogen in conjunction with ANAMMOX and denitrification technology.
4) the present invention adopts whole-process automatic control module to operate, and controls and simply should go, and for through engineering approaches, application has important reference value.
Brief description of the drawings
Fig. 1 is NH between the short distance nitration starting period
4 +-N, NO
2 --N, NO
3 --N change in concentration;
Fig. 2 is the changing conditions of ammonia nitrogen removal frank and nitrite accumulation rate between the short distance nitration starting period;
Fig. 3 is the different period NH of short distance nitration
4 +-N, NO
2 --N, NO
3 --N change in concentration situation and NH
4 +-N clearance and NO
2 -the situation of-N accumulation rate.
Embodiment
A rapidly and efficiently starting method for short distance nitration, comprises the following steps:
1) seed sludge that is rich in nitrobacteria is imported in sbr reactor device;
2) water inlet: it is 2500 ~ 3500mg/L that treatment sewage is imported to the concentration MLSS that sbr reactor device makes mud in reactor, controlling sewage temperature is 30 ± 1 DEG C, pH 7.9 ~ 8.2;
3) aeration: start the aeration facility in sbr reactor device, making in reactor is aerobic environment, and wherein dissolved oxygen concentration is 0.8～1.2mg/L; Aeration time is 1.5 ~ 2.5h;
4) close aeration facility, open and stir facility simultaneously, make muddy water in sbr reactor device close stirring facility after fully mixing; Churning time is 0.5 ~ 1.5h;
5) 1～5 step 3) of repetition and step 4);
6) stop after aeration and stirring, standing and reacting device, makes material natural sedimentation in it, makes solid-liquid separation;
7) water outlet: discharge supernatant liquor.
Preferably, in step 1), seed sludge concentration MLSS is 4500～5000mg/L.
Preferably, step 2) in, the chemical oxygen demand COD of described sewage is 150 ~ 200mg/L.
Preferably, step 2) in, the ammonia nitrogen concentration of described sewage is more than 40mg/L.
Preferred, step 2) in, the ammonia nitrogen concentration of described sewage is 40 ~ 60mg/L.
Preferably, in step 5), repeat 2 step 3) and step 4);
Preferably, in step 6), the time of described natural sedimentation is 0.5h ~ 1h.
Preferably, after step 7) completes, in reactor, fill into new treatment sewage, enter the period run of next round.
Below in conjunction with embodiment, the present invention is described further, protection scope of the present invention is not limited to this.
embodiment 1:
One, the rapidly and efficiently startup of short distance nitration, comprises the following steps:
1) seed sludge that is rich in nitrobacteria is imported in sbr reactor device, seed sludge is municipal wastewater treatment plant second pond returned sluge; Seed sludge concentration MLSS is 4800mg/L; Reactor adopts andnon-continuous operation manner;
2) water inlet: treatment sewage is imported in sbr reactor device, making the seed sludge concentration MLSS of previous step is 3000mg/L, controlling sewage temperature is 30 ± 1 DEG C, pH 8, and wherein the chemical oxygen demand COD for the treatment of sewage is that 170mg/L, ammonia nitrogen concentration are 50mg/L;
3) aeration: start the aeration facility in reactor, making in reactor is aerobic environment, and wherein dissolved oxygen DO concentration is 1mg/L; Aeration time is 2h;
4) close aeration facility, open and stir facility simultaneously, make muddy water in reactor close stirring facility after fully mixing; Churning time is 1h;
5) 2 step 3) of repetition and step 4);
6) stop after aeration and stirring, standing and reacting device, makes material natural sedimentation in it, makes solid-liquid separation, and wherein, the time of natural sedimentation is 0.5h;
7) water outlet: then discharge supernatant liquor, fill into new treatment sewage in reactor, enter the period run of next round.
The present embodiment unloading phase, the sbr reactor device time cycle of operation is about 10.3h(water inlet 0.3h,, 3 each 3h of aeration/stirring alternate run, precipitation 0.5h, water outlet 0.5h, altogether 10.3h).
Sbr reactor device moves two cycles, each cycle 10.3h every day.And test finds aeration/stirring alternate run 2,3,4,5, all can realize and start quickly and efficiently short distance nitration for 6 times, but when aeration/stirring alternate run 3 times, nitrite accumulation rate is the highest, bulk testing best results.
Two, bacterial classification adjustment period
Above-mentioned sbr reactor device is in operation the 0th day ~ the 6th day time, and owing to active sludge being tamed with vaccination ways, now AOB and NOB adjust laundering period and superseded stage in activity, this adjustment period the stage, NO in water outlet
2 --N concentration≤1.35mg/L, NO
3 --N concentration≤21.45 mg/L, NH
4 +-N clearance≤59.50%(as shown in Figures 1 to 3); Because remaining a large amount of DO, NH in mixed solution
4 +-N is converted into NO by NOB mostly
3 --N, now in mixed solution, NOB still occupies advantage, mainly carries out complete nitrification reaction in sbr reactor device.
Three, the bacterial classification rapid growth phase
In the time moving the 6th day ~ the 17th day, be AOB increased logarithmic phase, from the 6d starting, the NO in water outlet
2 --N concentration constantly increases, NO
3 --N reduces gradually; NH
4 +the passing that-N clearance starts to reduce sharply then in time presents ascendant trend.Show the increase along with working time, by the control to biochemical reactor operation condition, created favourable habitat for the growth of AOB, make the multiplication rate of AOB higher than NOB, AOB becomes dominant bacteria gradually.In the time moving to 15d, NO in water outlet
3 --N and NO
2 -the two concentration of-N is identical, at this stage NO
2 --N accumulation rate presents straight line ascendant trend [NO
2 --N/ (NO
2 --N+ NO
3 --N) %] be up to 89.10%(as shown in FIG. 1 to 3).
Four, stationary phase
In the time moving the 17th day ~ the 30th day, for the AOB bacterial classification steady growth phase, since 17d, NH in reactor
4 +-N, NO
2 --N, NO
3 --N three's concentration tends towards stability.In water outlet, NH
4 +-N concentration is down to 2mg/L left and right, clearance reaches 95%, NO
2 --N accumulation rate [NO
2 --N/ (NO
2 --N+ NO
3 --N) %] reach more than 90% (as shown in FIG. 1 to 3), and be steady state; So far show, the short distance nitration of low ammonia nitrogen waste water rapidly and efficiently is successfully realized.
embodiment 2:
The rapidly and efficiently startup of short distance nitration, comprises the following steps:
1) seed sludge that is rich in nitrobacteria is imported in sbr reactor device, seed sludge is municipal wastewater treatment plant second pond returned sluge; Seed sludge concentration MLSS is 4800mg/L; Reactor adopts andnon-continuous operation manner;
2) water inlet: treatment sewage is imported in sbr reactor device, and making the seed sludge concentration MLSS of previous step is 3000mg/L, controlling sewage temperature is 30 DEG C, pH 8.0, wherein the chemical oxygen demand COD for the treatment of sewage is that 150mg/L, ammonia nitrogen concentration are 40mg/L;
3) aeration: start the aeration facility in reactor, making in reactor is aerobic environment, and wherein dissolved oxygen DO concentration is 1mg/L; Aeration time is 2h;
4) close aeration facility, open and stir facility simultaneously, make muddy water in reactor close stirring facility after fully mixing; Churning time is 1h;
5) 2 step 3) of repetition and step 4);
6) stop after aeration and stirring, standing and reacting device, makes material natural sedimentation in it, makes solid-liquid separation, and wherein, the time of natural sedimentation is 1h;
7) water outlet: then discharge supernatant liquor, fill into new treatment sewage in reactor, enter the period run of next round.
embodiment 3:
The rapidly and efficiently startup of short distance nitration, comprises the following steps:
1) seed sludge that is rich in nitrobacteria is imported in sbr reactor device, seed sludge is municipal wastewater treatment plant second pond returned sluge; Seed sludge concentration MLSS is 5000mg/L; Reactor adopts andnon-continuous operation manner;
2) water inlet: treatment sewage is imported in sbr reactor device, and making the seed sludge concentration MLSS of previous step is 3500mg/L, controlling sewage temperature is 29 DEG C, pH 7.9, wherein the chemical oxygen demand COD for the treatment of sewage is that 200mg/L, ammonia nitrogen concentration are 60mg/L;
3) aeration: start the aeration facility in reactor, making in reactor is aerobic environment, and wherein dissolved oxygen DO concentration is 1.2mg/L; Aeration time is 2.5h;
4) close aeration facility, open and stir facility simultaneously, make muddy water in reactor close stirring facility after fully mixing; Churning time is 1.5h;
5) 2 step 3) of repetition and step 4);
6) stop after aeration and stirring, standing and reacting device, makes material natural sedimentation in it, makes solid-liquid separation, and wherein, the time of natural sedimentation is 0.5h;
7) water outlet: then discharge supernatant liquor, fill into new treatment sewage in reactor, enter the period run of next round.
embodiment 4:
The rapidly and efficiently startup of short distance nitration, comprises the following steps:
1) seed sludge that is rich in nitrobacteria is imported in sbr reactor device, seed sludge is municipal wastewater treatment plant second pond returned sluge; Seed sludge concentration MLSS is 5000mg/L; Reactor adopts andnon-continuous operation manner;
2) water inlet: treatment sewage is imported in sbr reactor device, making the seed sludge concentration MLSS of previous step is 2500mg/L, controlling sewage temperature is 31 DEG C, pH 8.2, and wherein the chemical oxygen demand COD for the treatment of sewage is that 200mg/L, ammonia nitrogen concentration are 100mg/L;
3) aeration: start the aeration facility in reactor, making in reactor is aerobic environment, and wherein dissolved oxygen DO concentration is 0.8mg/L; Aeration time is 1.5h;
4) close aeration facility, open and stir facility simultaneously, make muddy water in reactor close stirring facility after fully mixing; Churning time is 0.5h;
5) 4 step 3) of repetition and step 4);
6) stop after aeration and stirring, standing and reacting device, makes material natural sedimentation in it, makes solid-liquid separation, and wherein, the time of natural sedimentation is 1.5h;
7) water outlet: then discharge supernatant liquor, fill into new treatment sewage in reactor, enter the period run of next round.
Above-described embodiment is only specific embodiments of the invention, is not used for limiting practical range of the present invention; Be that all equalizations of doing according to content of the present invention change and modify, all by the claims in the present invention scope required for protection is contained.
Claims (7)
1. a starting method for short distance nitration rapidly and efficiently, is characterized in that: comprise the following steps:
1) seed sludge that is rich in nitrobacteria is imported in sbr reactor device;
2) water inlet: it is 2500 ~ 3500mg/L that treatment sewage is imported to the concentration MLSS that sbr reactor device makes mud in reactor, controlling sewage temperature is 30 ± 1 DEG C, pH 7.9 ~ 8.2;
3) aeration: start the aeration facility in sbr reactor device, making in reactor is aerobic environment, and wherein dissolved oxygen concentration is 0.8～1.2mg/L; Aeration time is 1.5 ~ 2.5h;
4) close aeration facility, open and stir facility simultaneously, make muddy water in sbr reactor device close stirring facility after fully mixing; Churning time is 0.5 ~ 1.5h;
5) 1～5 step 3) of repetition and step 4);
6) stop after aeration and stirring, standing and reacting device, makes material natural sedimentation in it, makes solid-liquid separation;
7) water outlet: discharge supernatant liquor.
2. the starting method of a kind of rapidly and efficiently short distance nitration according to claim 1, is characterized in that: in step 1), seed sludge concentration MLSS is 4500～5000mg/L.
3. the starting method of a kind of rapidly and efficiently short distance nitration according to claim 1, is characterized in that: step 2) in, the chemical oxygen demand COD of described sewage is 150 ~ 200mg/L.
4. the starting method of a kind of rapidly and efficiently short distance nitration according to claim 1, is characterized in that: step 2) in, the ammonia nitrogen concentration of described sewage is more than 40mg/L.
5. the starting method of a kind of rapidly and efficiently short distance nitration according to claim 4, is characterized in that: step 2) in, the ammonia nitrogen concentration of described sewage is 40 ~ 60mg/L.
6. the starting method of a kind of rapidly and efficiently short distance nitration according to claim 1, is characterized in that: in step 6), the time of described natural sedimentation is 0.5h ~ 1h.
7. the starting method of a kind of rapidly and efficiently short distance nitration according to claim 1, is characterized in that: after step 7) completes, in reactor, fill into new treatment sewage, enter the period run of next round.
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| CN106242054A (en) * | 2016-08-29 | 2016-12-21 | 武汉东川自来水科技开发有限公司 | The sewage disposal system of a kind of suitching type intermittent aerating and processing method |
| CN107253761A (en) * | 2017-07-31 | 2017-10-17 | 山东大学 | A kind of Anammox based on inactivated sludge quickly strengthens startup method |
| CN108101202A (en) * | 2017-12-12 | 2018-06-01 | 安徽国星生物化学有限公司 | A kind of method for realizing complete short distance nitration in sbr reactor device with neutralizer |
| CN108640265A (en) * | 2018-05-28 | 2018-10-12 | 广州市市政工程设计研究总院有限公司 | A kind of room temperature low ratio of carbon to ammonium city domestic sewage short distance nitration device for rapidly starting and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104556356A (en) * | 2014-12-29 | 2015-04-29 | 中南大学 | Method for quickly starting shortcut nitrification reactor |
| CN104591390A (en) * | 2015-01-13 | 2015-05-06 | 湖南大学 | Method for pre-treating landfill leachate |
| CN106242054A (en) * | 2016-08-29 | 2016-12-21 | 武汉东川自来水科技开发有限公司 | The sewage disposal system of a kind of suitching type intermittent aerating and processing method |
| CN106242054B (en) * | 2016-08-29 | 2023-07-04 | 武汉汇中大川自动控制设备有限公司 | Sewage treatment system and sewage treatment method with switching type intermittent aeration |
| CN107253761A (en) * | 2017-07-31 | 2017-10-17 | 山东大学 | A kind of Anammox based on inactivated sludge quickly strengthens startup method |
| CN107253761B (en) * | 2017-07-31 | 2020-06-05 | 山东大学 | Anaerobic ammonia oxidation rapid enhanced starting method based on inactivated sludge |
| CN108101202A (en) * | 2017-12-12 | 2018-06-01 | 安徽国星生物化学有限公司 | A kind of method for realizing complete short distance nitration in sbr reactor device with neutralizer |
| CN108101202B (en) * | 2017-12-12 | 2021-02-09 | 安徽国星生物化学有限公司 | Method for realizing complete short-cut nitrification in SBR reactor by using neutralizing agent |
| CN108640265A (en) * | 2018-05-28 | 2018-10-12 | 广州市市政工程设计研究总院有限公司 | A kind of room temperature low ratio of carbon to ammonium city domestic sewage short distance nitration device for rapidly starting and method |
| CN108640265B (en) * | 2018-05-28 | 2024-01-23 | 广州市市政工程设计研究总院有限公司 | Quick start device and method for shortcut nitrification of urban domestic sewage at normal temperature and low carbon nitrogen ratio |
| CN109110920A (en) * | 2018-09-17 | 2019-01-01 | 沈阳环境科学研究院 | A kind of SBR partial nitrification technique matching Anammox |
| CN112441662A (en) * | 2020-12-04 | 2021-03-05 | 安徽中环环保科技股份有限公司 | Method for quickly starting SBR bioreactor and method for judging successful starting |
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