CN101007678A - Temperature controlled USAB anaerobic ammoxidation strain denitrogenation method and its apparatus - Google Patents
Temperature controlled USAB anaerobic ammoxidation strain denitrogenation method and its apparatus Download PDFInfo
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- CN101007678A CN101007678A CNA2007100264334A CN200710026433A CN101007678A CN 101007678 A CN101007678 A CN 101007678A CN A2007100264334 A CNA2007100264334 A CN A2007100264334A CN 200710026433 A CN200710026433 A CN 200710026433A CN 101007678 A CN101007678 A CN 101007678A
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Abstract
The invention discloses a temperature-control UASB anaerobic ammoxygen denitrifying method and equipment, which comprises the following parts: cylinder (1) of UASB biological reactor, anaerobic sludge bed (2) on the lower part of cylinder (1), three-phased separator (3) on the top, temperature-control system (4) on the exterior of anaerobic sludge bed (2), wherein the anaerobic sludge bed (2) is active sludge after aerobic and anaerobic disposal in the SBR reactor, which cultures anaerobic ammoxygen strain tamed by microbe rapidly.
Description
Technical field
The present invention relates to temperature controlled USAB anaerobic ammoxidation strain denitrogenation method and equipment thereof, specifically be a kind of by the triphase separator in the former UASB reactor of cancellation, construct temperature controlling system in anaerobic reaction bed outside, promote temperature control UASB bio-reactor to carry out the new-type bioreactor equipment of Anammox by anaerobic mud bed being used for behind the percolate while aerobic-anaerobic activated sludge acclimatization.
Background technology
UASB is the abbreviation of upflow anaerobic sludge blanket reactor (Up-flow Anaerobic Sludge Blanket), and nineteen eighty-two, Lettinga has at first adopted this reactor to be used for the anaerobic treatment research of organic waste water.UASB technology is the anaerobic treatment technology of a kind of processing high concentrated organic wastewater (the particularly waste water of carbohydrate containing).The UASB reactor is made up of reaction zone and negative area two portions.Reaction zone is made up of Sludge Bed (thesludge bed) and sludge suspended bed (the sludge blanket), and the negative area is made up of settling region (the settlingcompartment) and triphase separator (the gas-liquid-solid separator).
But the main drawback of UASB technology is: though can handle high concentrated organic wastewater, generally be difficult to qualified discharge; In addition, its start time is longer, and granular sludge has material impact to water treatment effect; When handling organic waste water, the ammonia nitrogen treatment effect is relatively poor, if do not consider denitrification denitrogenation, then mainly is to be used to remove organic pollutant.
Bio-denitrification technology is the important technology difficult point in the sewage disposal.In the world, from Winogradsky in 1890 changed nitric acid nitrogen studies report into about the bio-oxidation of ammonia and Breal in 1892 about nitrous acid nitrogen since, biological denitrificaion had experienced a very long historical process.In recent years, the eutrophication of sealing water body (lake, reservoir) and the significantly raising of coastal red tide occurrence frequency, the environmental problem that polluted by nitrogen caused causes people's attention day by day, biological denitrificaion research removes traditional nitrated, denitrification and process combination development new technologies thereof, beyond being paid close attention to as while nitration denitrification, short-cut nitrification and denitrification, because the ANAMMOX process has: (1) does not need organic carbon source, cost saving, anti-secondary pollution; (2) save than nitration reaction aerobic 62.5%, energy consumption outstanding advantage such as decline to a great extent, ANAMMOX has become the important focus of Recent study exploitation.
1977, Broda calculated according to the thermodynamical reaction free energy, inferred that occurring in nature may exist two kinds of autotrophic microorganisms can be with NH
4 +Be oxidized to N
21994, people such as Mulder found that there is NH in sewage water denitrification fluidized-bed reactor of Dutch Deflt university
4 +Disappear, and with NH
4+ and NO
3 -Consumption, have N2 to generate.Because ammonia nitrogen is under anaerobic oxidized, therefore be known as Anammox.Test subsequently by N balance and redox equilibrium confirm to have taken place with NH4+ make electron donor, NO3-is the redox reaction of electron acceptor(EA).
5NH
4 ++3NO
3 -→4N
2+9H
2O+2H
+，ΔG0＝-297KJ/mol (1)
Thereby confirmed the supposition of Broda.So far, study the ANAMMOX biological denitrificaion both at home and abroad and carry out in the laboratory with the artificial distribution mostly, scale is less.Because ANAMMOX bacterium rate of propagation is very slow, the reactor that adopts mostly is the long reactor of sludge retention time, mainly contains fluidized-bed, fixed bed, SBR, airlift reactor, biofilm reactor, UASB, pulling flow type immobilization flco reactor, EGSB etc.The seed sludge that adopts has common aerobic activated sludge, aerobic nitrifying granular activated sludge, common anaerobic sludge, anaerobically digested sludge, river to gush bed mud, UASB granule sludge etc. except that the fluidized-bed of taking from initial discovery ANAMMOX.Result of study shows both at home and abroad: the ANAMMOX process starts the long time of needs.Nineteen ninety-five, people such as Mulder have found the ANAMMOX phenomenon when the biological denitrificaion fluidized-bed moves to 420 days; 2002, people such as Toh utilized fixed-bed reactor and sanitary sewage sludge treatment trade effluent, have successfully started the ANAMMOX process, and the ANAMMOX reaction enters steady running after 243 days; 2004, people such as Thuan utilized the UASB reactor to succeed through 260 days enrichment ANAMMOX microorganisms with water distribution.Chinese scholar Zheng Ping (2005) etc. adopt the test of different sorts mud, find that granule sludge helps the startup (about 100 days) of ANAMMOX reaction; Tsing-Hua University's left side sword is disliked UASB such as (2004) employing to multiple mud (common anaerobic grain sludge, anaerobism+aerobic mixing sludge, river bed mud) domestication ANAMMOX microorganism, succeeds through 225,220,250 days respectively; Du Bing etc. (2003) adopt high loading to realize the startup of ANAMMOX reaction in 112 days, adopt plug flow reactor then to experience 280 day time.But on the whole, prior art is still slower start time.
Summary of the invention
The objective of the invention is to reach the shortcoming that the UASB technology exists slowly, a kind of enrichment and domestication that sp act mud carries out anaerobic ammonia oxidizing bacteria of introducing be provided at domestic and international Anammox toggle speed, form at reactor lower part anaerobic mud bed, to the NH in the water inlet
4 +And NO
2-or NO
3-by the effect of anaerobic ammonia oxidizing bacteria, remove ammonia nitrogen removal and nitre nitrogen synchronously, and start fast temperature controlled USAB anaerobic ammoxidation strain equipment.
Another purpose of the present invention is to use aforesaid device, and a kind of temperature controlled USAB anaerobic ammoxidation strain denitrogenation method is provided.
To achieve the above object of the invention, the present invention has taked following technical scheme:
The temperature controlled USAB anaerobic ammoxidation strain denitrification equipment, comprise UASB bio-reactor cylindrical shell, the intravital bottom of UASB bio-reactor tube is provided with anaerobic mud bed, top is provided with triphase separator, the cylindrical shell bottom is provided with water-in, the top is provided with pneumatic outlet, and the cylindrical shell that is positioned at three separator places is provided with water outlet, and described anaerobic mud bed outside is provided with temperature control system; Described anaerobic mud bed used kind mud is the rubbish effusion is crossed aerobic-anaerobic processing simultaneously at the reactor back warp at SBR active sludge.Described water-in is communicated with distribution reservoir.Described reactor head is provided with thermometer, thermometer stretch into anaerobic mud bed in.Described UASB bio-reactor cylindrical shell is provided with thief hole.Described temperature control system is a constant temperature water bath apparatus.
The temperature controlled USAB anaerobic ammoxidation strain denitrogenation method: the multiple microorganism of waste water in anaerobic mud bed bottom from water-in consumes the dissolved oxygen that contains in the waste water earlier, anaerobic mud bed microorganism at the middle and upper levels carries out Anammox through the anaerobic ammonia oxidizing bacteria after taming to ammonia nitrogen in the waste water and nitric nitrogen, the temperature of anaerobic mud bed processing waste water is controlled to be 26～36 ℃, and processed subsequently waste water flows out from water outlet.
The optimum parameter of temperature control UASB bio-reactor Anammox of the present invention is: the NH of water inlet
4 +-N and NO
2The ratio of-N is made as 1: (1～1.9), pH between 7.8～8.2, NH
4 +-N, NO
2The volumetric loading of-N and TN is respectively 0.08～0.12kgNH
4 +-N/ (m
3D), 0.06～0.15kgNO
2-N/ (m
3D), 0.16～0.26kgTN/ (m
3D).
Compared with prior art, the present invention has following beneficial effect:
The sludge acclimatization that temperature control UASB of the present invention adopts special processing than common active sludge toggle speed fast again more than, to NH
4 +, NO
2 -, T-N all has very high removal effect: the active sludge that adopts percolate to handle through aerobic-anaerobic simultaneously carries out Anammox, only be 41 days start time, adopt shortened 78 days greatly 119 days start times of common sludge (approaching) of municipal sewage plant than control group with the result of study of domestic and foreign literature report, and show the good treatment effect, NH
4 +-N clearance reaches more than 87.8%, NO
2 --N clearance reaches 99.9%, and the three nitrogen ratio of its stable reaction operation phase is: NH
4 +-N: NO
2 --N: NO
3 -N=1: 1.12: 0.17.Other reactor of usefulness and various sludge acclimatization startup than Chinese scholars bibliographical information realized that Anammox shortened greatly in time spent 100-420 days, had important engineering and were worth.
Description of drawings
Fig. 1 is a temperature control UASB structure of reactor synoptic diagram of the present invention;
Fig. 2 is the removal effect figure of temperature control UASB reactor of the present invention to ammonia nitrogen;
Fig. 3 is the removal effect of temperature control UASB reactor control group of the present invention to ammonia nitrogen;
Fig. 4 is that temperature control UASB reactor of the present invention is to NO
2 -The quick removal effect synoptic diagram of-N;
Fig. 5 is that temperature control UASB reactor control group of the present invention is to NO
2 -The removal effect of-N.
Embodiment
The present invention is described in further detail below in conjunction with embodiment and accompanying drawing, but the scope of protection of present invention is not limited to the scope of embodiment statement.
As shown in Figure 1, the temperature controlled USAB anaerobic ammoxidation strain denitrification equipment, comprise UASB bio-reactor cylindrical shell 1, bottom in the UASB bio-reactor cylindrical shell 1 is provided with anaerobic mud bed 2, top is provided with triphase separator 3, and cylindrical shell 1 bottom is provided with water-in 9, and the top is provided with pneumatic outlet 6, the cylindrical shell 1 that is positioned at three separator places is provided with water outlet 7, and described anaerobic mud bed 2 outsides are provided with constant temperature water bath apparatus 4; Described anaerobic mud bed 2 used kind mud are that rubbish effusion SBR is at the active sludge of reactor shell 1 through aerobic-anaerobic processing simultaneously.Described water-in 9 is communicated with distribution reservoir 5.Described reactor head is provided with thermometer 10, and thermometer 10 stretches in anaerobic mud bed 2.Described UASB bio-reactor cylindrical shell 1 is provided with thief hole 8.During application, the multiple microorganism of waste water in anaerobic mud bed bottom from water-in consumes the dissolved oxygen that contains in the waste water earlier, anaerobic mud bed microorganism at the middle and upper levels carries out Anammox through the anaerobic ammonia oxidizing bacteria after taming to ammonia nitrogen in the waste water and nitric nitrogen, the temperature of anaerobic mud bed processing waste water is controlled to be 30 ℃, and processed subsequently waste water flows out from water outlet.
Choosing of the operating parameter of temperature controlled USAB anaerobic ammoxidation strain denitrification equipment of the present invention:
Take the startup method of lower concentration, underload.1
#Reactor is organized in contrast, adopts common municipal sewage treatment mud to tame, and has moved 373 days, and reactor start-up operating parameter and operation result are as shown in table 1; 2
#The mud that reactor adopts percolate to handle by the while aerobic-anaerobic is tamed, and has moved 231 days, and reactor start-up operating parameter and operation result are as shown in table 2.
Table 1 reactor operating parameter
| Days running/d | Ammonia nitrogen | Nitrite nitrogen | Total nitrogen | |||
| Concentration mg/l | Volumetric loading kgNH 4 +-N/ (m 3·d) | Concentration mg/l | Volumetric loading kgNO 2 --N/ (m 3·d) | Concentration mg/l | Volumetric loading kgTN/ (m 3·d) | |
| 1～51 | 21.6～79.8 | 0.032～0.153 | 9.0～89.2 | 0.014～0.178 | 39.0～137.1 | 0.060～0.274 |
| 52～159 | 37.6～88.0 | 0.037～0.134 | 72.2～170.3 | 0.072～0.204 | 121.8～233.5 | 0.215～0.367 |
| 160～338 | 42.2～130.0 | 0.010～0.093 | 70.6～200.2 | 0.017～0.067 | 120.0～315.6 | 0.030～0.257 |
| 339～358 | 89.6～141.6 | 0.013～0.049 | 132.0～161.6 | 0.022～0.060 | 245.8～304.4 | 0.035～0.112 |
| 359～373 | 133.6～159.6 | 0.038～0.049 | 160.2～182.4 | 0.044～0.057 | 306.0～346.0 | 0.067～0.108 |
Table 2 reactor operating parameter
| Days running/d | Ammonia nitrogen | Nitrite nitrogen | Total nitrogen | |||
| Concentration mg/l | Volumetric loading kgNH 4 +-N/(m 3·d) | Concentration mg/l | Volumetric loading kgNO 2 --N/(m 3·d) | Concentration mg/l | Volumetric loading kgTN/ (m 3·d) | |
| 1～73 | 36.2～4.8 | 0.009～0.125 | 47.8～68.9 | 0.010～0.121 | 99.4～120.3 | 0.022～0.249 |
| 74～135 | 79.6～100.0 | 0.009～0.065 | 80.6～146.0 | 0.010～0.094 | 162.9～237.1 | 0.023～0.161 |
| 136～231 | 39.3～102.3 | 0.009～0.033 | 50.1～136.8 | 0.011～0.032 | 100.7～126.3 | 0.015～0.065 |
Implementation result
1, the removal effect of 1# reactor and start time
Accompanying drawing 2,4 shows: the 119d of reactor operation, and the water outlet ammonia-nitrogen content drops to 1.7mg/l, and clearance reaches 95.6%; Nitrite nitrogen content 24.6mg/l, clearance 72.4%; Simultaneously, generate water nitre nitrogen 9.0mg/l.And the characteristics of Anammox reaction are when ammonia nitrogen and nitrite nitrogen obtain removing simultaneously, and the generation of nitre nitrogen is arranged.Show that detesting oxidative ammonolysis this moment becomes the interior leading reaction of reactor, the UASB anaerobic ammonia oxidation reactor successfully starts.When reactor is impacted, through adjusting the reactor operating parameter, move for some time and recover high anaerobic ammoxidation activity again, illustrate that anaerobic ammonia oxidation reactor has withstood test.
2, the removal effect of 2# reactor and start time
Fig. 3,5 demonstrates this anaerobic ammonia oxidation reactor and adopts percolate to shorten dramatically start time through the Anammox denitrification process of active sludge after the special processing.3 visibly different stages have been experienced in the startup of reactor, and promptly mud adaptive phase (the 1st～40 day) and anaerobic ammoxidation activity performance phase (the 41st～193 day) and anaerobic ammoxidation activity improve the phase (the 194th～217 day).
The 1st～40 day of sludge seeding is in the mud adaptive phase, and different with the 1# reactor is, do not have this moment to reveal tangible denitrification process.The clearance of ammonia nitrogen and nitrite nitrogen is lower, and average removal rate is 10.8% and 32.8%, and the content Inlet and outlet water of nitre nitrogen is more or less the same simultaneously.This mainly is relevant with the character of seed sludge.
The 41st day, the clearance of ammonia nitrogen and nitrite nitrogen suddenly by the 36th day 21.9% and 31.7% bring up to 87.8% and 99.9%, also show nitre nitrogen simultaneously and significantly generate, show that inside reactor is to begin that the Anammox reaction is arranged.At the 36th～193 day of operation subsequently, can see in the anaerobic ammoxidation activity performance phase, the average removal rate of nitrite nitrogen is reached 91.5%, the average removal rate 68.7% of ammonia nitrogen.Beginning in the 194th day, anaerobic ammoxidation activity improves gradually.Ammonia-N removal rate improves gradually, and the generation of nitre nitrogen is fewer and feweri.When ammonia-N removal rate reached 99.8% at the 217th day, the clearance of nitrite nitrogen still is 99.9%, because the minimizing of nitre nitrogen growing amount, nitrogen removal rate has reached 90.4%.Reactor was through 217 days operation.
Claims (6)
1, temperature controlled USAB anaerobic ammoxidation strain denitrification equipment, comprise UASB bio-reactor cylindrical shell (1), bottom in the UASB bio-reactor cylindrical shell (1) is provided with anaerobic mud bed (2), top is provided with triphase separator (3), cylindrical shell (1) bottom is provided with water-in (9), and the top is provided with pneumatic outlet (6), and the cylindrical shell (1) that is positioned at the triphase separator place is provided with water outlet (7), it is characterized in that described anaerobic mud bed (2) outside is provided with temperature control system (4); Described anaerobic mud bed (2) used kind mud is that the rubbish effusion is at the active sludge of sbr reactor device through aerobic-anaerobic processing simultaneously.
2, temperature controlled USAB anaerobic ammoxidation strain denitrification equipment according to claim 1 and 2 is characterized in that, described reactor head is provided with thermometer (10), and thermometer (10) stretches in anaerobic mud bed (2).
3, temperature controlled USAB anaerobic ammoxidation strain denitrification equipment according to claim 1 and 2 is characterized in that, described UASB bio-reactor cylindrical shell (1) is provided with thief hole (8).
4, temperature controlled USAB anaerobic ammoxidation strain denitrification equipment according to claim 1 and 2 is characterized in that, described water-in (9) is communicated with distribution reservoir (5).
5, temperature controlled USAB anaerobic ammoxidation strain denitrification equipment according to claim 1 and 2 is characterized in that, described temperature control system (4) is a constant temperature water bath apparatus.
6, temperature controlled USAB anaerobic ammoxidation strain denitrogenation method, it is characterized in that consuming the dissolved oxygen that contains in the waste water earlier from the multiple microorganism of waste water in anaerobic mud bed bottom of water-in, anaerobic mud bed microorganism at the middle and upper levels carries out Anammox through the anaerobic ammonia oxidizing bacteria after taming to ammonia nitrogen in the waste water and nitric nitrogen, the temperature of anaerobic mud bed processing waste water is controlled to be 26～36 ℃, and processed subsequently waste water flows out from water outlet.
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| CN101844830A (en) * | 2009-03-25 | 2010-09-29 | 株式会社日立工业设备技术 | Method of wastewater treatment |
| CN102167443A (en) * | 2011-05-23 | 2011-08-31 | 合肥工业大学 | Method for removing organic arsenic in cultivation wastewater by anaerobic granular sludge |
| CN102219298A (en) * | 2010-03-12 | 2011-10-19 | 三菱丽阳株式会社 | biological treating device and biological treating method |
| CN102259976A (en) * | 2011-05-23 | 2011-11-30 | 杭州师范大学 | Method for quickly starting anaerobic ammonia oxidation reactor |
| CN102502958A (en) * | 2011-11-22 | 2012-06-20 | 上海交通大学 | Upflow anaerobic sludge blanket reactor system |
| CN102557344A (en) * | 2011-12-29 | 2012-07-11 | 广州市市政工程设计研究院 | Energy recycling sewage treatment method coupling nitrogen and carbon removal and device for the same |
| CN102745810A (en) * | 2012-07-20 | 2012-10-24 | 青岛大学 | Synchronous denitrifying and decarburizing method for waste water |
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| CN101844830A (en) * | 2009-03-25 | 2010-09-29 | 株式会社日立工业设备技术 | Method of wastewater treatment |
| CN102219298A (en) * | 2010-03-12 | 2011-10-19 | 三菱丽阳株式会社 | biological treating device and biological treating method |
| CN102259976A (en) * | 2011-05-23 | 2011-11-30 | 杭州师范大学 | Method for quickly starting anaerobic ammonia oxidation reactor |
| CN102167443B (en) * | 2011-05-23 | 2012-06-13 | 合肥工业大学 | Method for removing organic arsenic in cultivation wastewater by anaerobic granular sludge |
| CN102259976B (en) * | 2011-05-23 | 2013-01-23 | 杭州师范大学 | Method for quickly starting anaerobic ammonia oxidation reactor |
| CN102167443A (en) * | 2011-05-23 | 2011-08-31 | 合肥工业大学 | Method for removing organic arsenic in cultivation wastewater by anaerobic granular sludge |
| CN102502958A (en) * | 2011-11-22 | 2012-06-20 | 上海交通大学 | Upflow anaerobic sludge blanket reactor system |
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| CN102745810B (en) * | 2012-07-20 | 2013-12-04 | 青岛大学 | Synchronous denitrifying and decarburizing method for waste water |
| CN103265113A (en) * | 2013-06-05 | 2013-08-28 | 杭州师范大学 | Ternary anaerobic ammoxidation bioreactor |
| CN103265113B (en) * | 2013-06-05 | 2014-10-01 | 杭州师范大学 | Ternary anaerobic ammoxidation bioreactor |
| CN103553209B (en) * | 2013-09-24 | 2015-06-17 | 杭州师范大学 | Improved anaerobic ammonium oxidation baffle plate reactor |
| CN103553209A (en) * | 2013-09-24 | 2014-02-05 | 杭州师范大学 | Improved anaerobic ammonium oxidation baffle plate reactor |
| CN104176824A (en) * | 2014-09-05 | 2014-12-03 | 北京思坦环保科技有限公司 | Ammonium nitrate wastewater biochemical treatment device and operation method thereof |
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| CN104609546A (en) * | 2015-01-26 | 2015-05-13 | 福建省环境科学研究院 | Method for quickly starting efficient anaerobic ammonia oxidation reactor without deoxygenization |
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| CN105753147A (en) * | 2016-03-22 | 2016-07-13 | 哈尔滨工业大学 | Controllable double-circulation anaerobic reactor and application |
| CN105753147B (en) * | 2016-03-22 | 2018-12-11 | 哈尔滨工业大学 | A kind of controllable double-cycling anaerobic reactor and application |
| CN106268289A (en) * | 2016-09-09 | 2017-01-04 | 北京交通大学 | The biological denitrification method of anaerobic ammonia oxidizing bacteria |
| CN106268289B (en) * | 2016-09-09 | 2020-03-06 | 北京交通大学 | Biological denitration method for anaerobic ammonium oxidation bacteria |
| CN106830309A (en) * | 2017-02-20 | 2017-06-13 | 中冶南方工程技术有限公司 | Permanent moderate temperature UASB reactor |
| CN108928919A (en) * | 2018-09-20 | 2018-12-04 | 苏州清然环保科技有限公司 | Anammox water treatment facilities |
| CN109694132A (en) * | 2019-02-23 | 2019-04-30 | 何江涛 | A kind of sewage water treatment method of sequence batch temperature-control pressure-control biomembrane |
| CN111977781A (en) * | 2020-07-07 | 2020-11-24 | 镇江新纳环保材料有限公司 | High-concentration wastewater pretreatment system applied to extraction of N-methylpyrrolidone |
| CN116218640A (en) * | 2023-02-28 | 2023-06-06 | 乐山师范学院 | Device for domesticating concentrated sludge into Feamox flora |
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