CN1317208C - Automatized sequential reaction unit for aerobic particle sludge culture and research - Google Patents
Automatized sequential reaction unit for aerobic particle sludge culture and research Download PDFInfo
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- CN1317208C CN1317208C CNB2004100232043A CN200410023204A CN1317208C CN 1317208 C CN1317208 C CN 1317208C CN B2004100232043 A CNB2004100232043 A CN B2004100232043A CN 200410023204 A CN200410023204 A CN 200410023204A CN 1317208 C CN1317208 C CN 1317208C
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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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Abstract
The present invention relates to an automated sequential reaction device used for cultivating and researching aerobic granular sludge, which is characterized in that the present invention comprises a reactor body, a stirring system, an aerating system and a control system, wherein the proportion of the height of the reactor body and the diameter of a barrel body is more than 10; the reactor body is provided with a water inlet, a sampling opening and a water discharging opening, which can be controlled to be opened and closed by the control system, and the bottom is provided with a sludge discharging opening. The stirring system is arranged in an inner cavity of the reactor body; a micropore aeration head of the aerating system is arranged at the bottom of the reactor body and is connected with a blower and a nitrogen system, which are controlled by the control system through air delivery pipelines. The middle lower position of the reactor body is also provided with a heating system which comprises a heating jacket which coats the middle lower part of the reactor body. The heating jacket is provided with a water inlet and a water outlet, and is connected with a water pump and a hot water source with a constant temperature through pipelines. The present invention can fast cause granular sludge to be formed, and simultaneously can realize different test purposes of the research, the cultivation, the nitrification and denitrification, the denitrifying phosphorus removal of granular sludge, etc. The operation is simple and convenient.
Description
Technical field:
The present invention relates to experimental installation in a kind of biological wastewater treatment field, be specifically related to a kind of automatization sequence batch (reaction unit that aerobic particle mud is cultivated and studied that is used for.
Background technology:
Utilizing aerobic particle mud to remove various objectionable impuritiess in the waste water is focuses of biological wastewater treatment area research in recent years.Granule sludge is compared with common cotton-shaped active sludge, and settling property is better, and sludge concentration is higher, can adapt to the unexpected variation of waste water quality more.And by certain post-directed training, granule sludge not only can be removed organic substance in the waste water, can also realize synchronous nitration and denitrification, dephosphorization and removal hardly degraded organic substance.Therefore the hardly degraded organic substance that utilizes the denitrogenation dephosphorizing ability of granule sludge to solve the eutrophication problem of water pollution and utilize granule sludge to degrade and produce in the industrial production is quite promising at present research direction.
In recent years studies show that: can sludge acclimatization modes such as hydraulic shear in the reactor and sludge settling time have played conclusive effect to forming or form fast granule sludge.Because common automatization sequence batch (experimental installation is not to be test objective with the characteristic of cultivating granule sludge and research granule sludge, do not consider that culture condition is to granuloplastic influence, therefore not being suitable for the granule sludge is the experimental study of research object, what have promptly allows to form granule sludge, required incubation time is also quite long, what have reached more than half a year, had wasted many manpower and materials.At present, be that the reactor of purpose does not also have and relates to cultivate granule sludge and to utilize granule sludge to carry out scientific research.
Summary of the invention:
Technical problem to be solved by this invention is the defective that overcomes above-mentioned prior art, a kind of formation that can realize granule sludge fast is provided, can realizes the automatization sequence batch (experimental installation of the different tests purposes such as research, cultivation, nitration denitrification and denitrification dephosphorization of granule sludge simultaneously.
The present invention solves the problems of the technologies described above by following technical scheme.It is characterized in that it comprises reactor body, stirring system, aerating system and Controlling System, the ratio of described reactor body height and barrel diameter is greater than 10, which is provided with water-in, thief hole and the water port of being controlled its keying by Controlling System, the bottom is provided with mud discharging mouth; Described stirring system places the reactor body inner chamber; The micro porous aeration head of aerating system places reactor body bottom, links to each other with nitrogen system with gas blower by Controlling System control by air delivering pipeline.In position, reactor body middle and lower part, also be provided with heating system, it comprises the heating jacket that is coated on the reactor body middle and lower part, this heating jacket is provided with water-in and water outlet, links to each other with the constant-temperature hot water source with water pump by pipeline.Stirring system of the present invention can have three kinds of forms, and one is for placing the reactor body inner chamber and by the stir shaft of electric motor driving rotation, the above agitating vane of one-level or one-level being housed on this stir shaft; It two can be a hollow cylinder, is fixed in the middle of the reactor body, and micro porous aeration head places this cylindrical shell bottom inner chamber; It is three for placing the reactor body inner chamber and by the stir shaft of electric motor driving rotation, this stir shaft is a hollow tube, and a gas box is established in the stir shaft upper end, links to each other with extraneous inlet pipe by this gas box, the lower end connects micropore aeration pipe, on its axle one-level or the above agitating vane of one-level is housed.
The present invention has following technique effect:
1) the present invention adopts the mode of circulation and aeration head aeration air inlet from the hollow stir shaft to perforated pipe, ectonexine cylindrical shell, helps the formation of granule sludge; The reactor body aspect ratio design big (greater than 10), help the discharge of floc sludge, can quicken the formation of granule sludge.
2) in set nitrogen system of the present invention and the stirring system may command solution dissolved oxygen concentration in certain scope, thereby satisfy the needs of nitration denitrification and dephosphorization.
3) Controlling System of the present invention can change operator scheme neatly, thereby realizes various test objectives such as granule sludge cultivation, nitration denitrification and denitrification dephosphorization, and operation is simple.
4) the present invention is provided with the circulator bath heating jacket, and temperature can be controlled at 20-30 ℃, thereby satisfies the temperature needs of microbial metabolism in the wastewater treatment.
Description of drawings:
Fig. 1 forms synoptic diagram for the embodiment of the invention;
Fig. 2 is stir shaft embodiment one synoptic diagram of the present invention;
Fig. 3 is stirring system embodiment two synoptic diagram of the present invention;
Fig. 4 is stirring system embodiment three synoptic diagram of the present invention;
Fig. 5 is a Controlling System schematic circuit of the present invention;
Fig. 6 is a process flow diagram of the present invention.
Embodiment:
As shown in Figure 1, the present invention is made up of reactor, stirring system, aerating system and Controlling System, described reactor comprises reactor body 26, it is the tube structure of a hollow, can adopt pmma material to make, the ratio of its height and barrel diameter can prolong the sludge settling time greater than 10, help the discharge and the settling property screening and the enrichment of particulate state mud preferably of the relatively poor floc sludge of settling property.Its barrel different positions is respectively arranged with water-in 1, water port 2, overflow port 3 and thief hole 4, the bottom is provided with mud discharging mouth 5, wherein water-in 1 is connected with submersible pump 12 in being placed in water reservoir 6 by water inlet pipe, water port 2 is connected with drainage tray 7 through water shoot, by magnetic valve 18, time controller 34 and magnetic valve 19, time controller 37 controls of Controlling System, overflow port 3, thief hole 4 and mud discharging mouth 5 are respectively by ball valve 21,22,23 controls respectively in the opening and closing of water-in 1 and water port 2.Described stirring system places reactor body 26 inner chambers, can make reactor body 26 interior water and granule sludges form circulation, helps quickening to form aerobic particle mud; The micro porous aeration head 25 of aerating system places reactor body 26 bottoms, and air can enter in the reactor body 26 through air delivering pipeline and micro porous aeration head 25 under the effect of aerator.These micro porous aeration head 25 external air delivering pipelines, air delivering pipeline was divided into two paths by Y-tube 27 before entering reactor body 26, one links to each other with gas blower 14, its pipeline is provided with magnetic valve 20, and the opening and closing of gas blower 14 and magnetic valve 20 are by time controller 35 controls; Another connection nitrogengas cylinder 28, when in the needs regulation and control reactor body 26 during dissolved oxygen, the nitrogen path is opened, nitrogen in the nitrogengas cylinder 28 is in reducing valve 24 decompression back and air inflow reactor main body 26 in the lump, and the proportioning of air and nitrogen is controlled by the reading of gas meter set on each branch road 16,17 is big or small respectively.
Stirring system of the present invention can be provided with three kinds of forms.As shown in Figure 2, it comprises the stir shaft 32 that is installed on reactor body 26 inner chambers, this stir shaft 32 is driven by the electric motor 10 that links with it and rotates, be fixed on the reactor body 26 by nut, detachably, on its axle one-level or the above agitating vane 15 of one-level are housed, drive stir shaft 32 by electric motor 10 and rotate, promote water by agitating vane 15 and form circulation.
As shown in Figure 3, the stir shaft 32 of stirring system of the present invention is a hollow metal pipe, is driven by the electric motor 10 that links with it and rotates, and on its axle one-level or the above agitating vane 15 of one-level is housed, drive stir shaft 32 by electric motor 10 and rotate, promote water by agitating vane 15 and form circulation.A gas box 43 is established in stir shaft 32 upper ends, can link to each other with extraneous inlet pipe by this gas box 43, and the lower end connects one section micropore aeration pipe 45, and air enters in the reactor body 26 through the stir shaft 32 and the micropore aeration pipe 45 of hollow.
As shown in Figure 4, stirring system of the present invention can be a hollow cylinder 46, form the double-layer barrel structure with reactor body 26, be fixed in reactor body 26 centres by nut, and form certain space with reactor body 26 bottoms, and can dismantle, micro porous aeration head 25 places this cylindrical shell 46 bottom inner chambers.In the culturing process of granule sludge, air is entering in the reactor body 26 through air delivering pipeline and micro porous aeration head 25 under the effect of aerator, and promotes water formation circulation between above-mentioned two double-layer barrels.After granule sludge is cultivated successfully, utilize it to carry out dephosphorization when research, dismountable cylindrical shell 46 is installed stir shaft and agitator motor, can realize multiple actions such as aerobic, anaerobism and anoxia stirring.
As shown in Figure 1, the present invention's lower position among reactor body 26 is provided with heating system, to satisfy the temperature needs of microbial metabolism in the wastewater treatment, it comprises the heating jacket 9 that is coated on the reactor body middle and lower part, can contain constant-temperature hot water in this heating jacket 9, its side-lower is provided with water-in 29, the side top is provided with water outlet 30, links to each other with constant-temperature hot water source 8 with water pump 13 by pipeline, forms connecting pipeline, can guarantee recycling of hot water, temperature control socket 31 is located on the sidewall in constant-temperature hot water source 8.
As shown in Figure 5, Controlling System of the present invention is made up of time controller 34,35,36 and trip switch 40,41,42, can send the opening and closing that control information decides each different pumps, aerator and magnetic valve according to test requirements document, thus the periodic duty of realization response device.When needs change operator scheme, only need in the corresponding change Controlling System time to control and time variable control realizes easily.
Working process of the present invention:
Select the operational scheme of automatization sequence batch (according to test objective, below each process of division:
1. Fig. 6 is depicted as and cultivates granule sludge test experiment process.Specific implementation process is: with seed sludge---common cotton-shaped active sludge and water inject its inner chamber from reactor body 26 tops by a certain percentage, have installed and fixed stir shaft 32 and electric motor 10, connect the power switch of circulator bath then, and heating system is opened.Press the START button 33 on the control panel 11, magnetic valve 18 is opened, and the simulated wastewater in the water reservoir 6 enters in the reactor body 26 under the castering action of water pump 12.When the time of time rly. 34 indications finished, water pump 12 quit work, and operational scheme enters aeration phase, the time relay 35 picks up counting, and magnetic valve 20 is opened, and gas blower 14 blasts air in the reactor body 26, the size of air capacity is by gas meter 16 controls, when aeration section working time finishes, the time relay 35 actions, operational scheme enters precipitate phase, the time relay 36 picks up counting, when the sedimentation time section finished, magnetic valve 19 was opened, and the present invention enters bleeding stage.The supernatant liquor of post precipitation enters drainage tray 7 through magnetic valve 19, and when the time of time rly. 37 indications finished, bleeding stage finished, and the present invention enters anaerobic stages.Magnetic valve 38 picks up counting, and the anaerobism time period, magnetic valve 18 and water pump 12 restarted when finishing, and enters next circulation.If when interrupting the whole service operation, only need to press power switch 39.
2. Fig. 6 is depicted as the nitration denitrification process of granule sludge.Specific implementation process is: with seed sludge---common cotton-shaped active sludge and water inject its inner chamber from reactor body 26 tops by a certain percentage, have installed and fixed stir shaft 32 and electric motor 10, connect the power switch of circulator bath then, and heating system is opened.Press the START button 33 on the control panel 11, magnetic valve 18 is opened, and the simulated wastewater in the water reservoir 6 enters in the reactor body 26 under the castering action of water pump 12.When the time of time rly. 34 indications finished, water pump 12 quit work, and operational scheme enters aeration phase, the time relay 35 picks up counting, and magnetic valve 20 is opened, and gas blower 14 blasts air in the reactor body 26, the size of air capacity is by gas meter 16 controls, when aeration section working time finishes, the time relay 35 actions, operational scheme enters precipitate phase, the time relay 36 picks up counting, when the sedimentation time section finished, magnetic valve 19 was opened, and reactor 26 enters bleeding stage.The supernatant liquor of post precipitation enters drainage tray 7 through magnetic valve 19, and when the time of time rly. 37 indications finished, bleeding stage finished, and magnetic valve 18 and water pump 12 restart, and reactor enters next circulation.
3. Fig. 6 is depicted as the denitrification dephosphorization process of granule sludge.Specific implementation process is: with seed sludge---common cotton-shaped active sludge and water inject its inner chamber from reactor body 26 tops by a certain percentage, have installed and fixed stir shaft 32 and electric motor 10, connect the power switch of circulator bath then, and heating system is opened.Press the START button 33 on the control panel 11, magnetic valve 18 is opened, and the simulated wastewater in the water reservoir 6 enters in the reactor body 26 under the castering action of water pump 12.When the time of time rly. 34 indications finished, water pump 12 quit work, and opens 3 trip switchs 40,41,42 then, and operational scheme enters anaerobic stages, and the electric motor 10 that is fixed on the reactor footstock drives stir shaft 32 rotations that multistage blade is installed.After the anaerobism section finishes, when entering aeration phase, stir electric motor 10 and quit work.The time relay 35 picks up counting, magnetic valve 20 is opened, gas blower 14 blasts air in the reactor body 26, and the size of air capacity is by gas meter 16 controls, when aeration section working time finishes, the time relay 35 actions, operational scheme enters precipitate phase, and the time relay 36 picks up counting, when the sedimentation time section finishes, magnetic valve 19 is opened, and the present invention enters bleeding stage.The supernatant liquor of post precipitation enters drainage tray 7 through magnetic valve 19, and when the time of time rly. 37 indications finished, bleeding stage finished, and magnetic valve 18 and water pump 12 restart, and enters next circulation.
As a further improvement on the present invention, can adopt liquid level to control water inlet and time of draining, then the periodic duty of realization response device more like clockwork.
Embodiment 1: the aerobic particle mud synchronous nitration and denitrification
(a) with aerobic particle mud as seed sludge, keep that mixed liquor suspended solid, MLSS concentration (MLSS) are 6.7g/L in the reactor body 26; (b) select operating parameter as follows: water inlet and draining are about respectively about 3min and 5min, aeration 240min, precipitation 2min, anaerobism 30min; (c) the water bath with thermostatic control temperature is set at 20 ℃, and aeration rate is 75L/h, keeps into water chemical oxygen demand (COD) (COD
Cr) and ammonia nitrogen concentration be respectively 420mg/L and 30mg/L, move 3 cycles every day; (d) after the operation beginning, simulated wastewater enters reactor body 26 through the castering action of water pump 12, under the effect of Controlling System, passes through aeration, precipitation, draining and anaerobic stages in turn, finishes the whole service cycle, and enters next cycle in turn; (e) through measuring the COD of automatization sequencing batch reactor
Cr, ammonia nitrogen, total inorganic nitrogen clearance reach 90%, 100%, 52% respectively.
Embodiment 2: the cultivation of aerobic particle mud
(a) with common floc sludge as seed sludge, keep that MLSS is 2.7g/L in the reactor; (b) select operating parameter as follows: water inlet and draining are about respectively about 3min and 5min, aeration 240min, sedimentation time begins to be set to more than the 30min, extension sedimentation time with the domestication time shortens artificially gradually, quicken the selection cultivation of granule sludge, anaerobism time 30min by reducing the sludge settling time; (c) the water bath with thermostatic control temperature is set at 20 ℃, and aeration rate is 75L/h, keeps into water COD
CrBe respectively 420mg/L and 30mg/L with ammonia nitrogen concentration, move 3 cycles every day; (d) after the operation beginning, simulated wastewater enters reactor body 26 through the castering action of water pump 12, under the effect of Controlling System, passes through aeration, precipitation, draining and anaerobic stages in turn, finishes the whole service cycle, and enters next cycle in turn; (e) through nearly bimestrial cultivation, formed original floc sludge in the reactor and almost all be transformed into orange-yellow, millet granulous particulate state mud, the diameter of granule sludge reaches 0.5～1.0mm, sludge volume index (SVI
30) and mixed liquor suspended solid, MLSS concentration (MLSS) be respectively 18.9ml/g and 5.3g/L.
Claims (5)
1, a kind of automatization sequence batch (reaction unit that is used for aerobic particle mud cultivation and research, it is characterized in that it comprises reactor body, stirring system, aerating system and Controlling System, the ratio of described reactor body height and barrel diameter is greater than 10, which is provided with water-in, thief hole and the water port of being controlled its keying by Controlling System, the bottom is provided with mud discharging mouth; Described stirring system places the reactor body inner chamber; The micro porous aeration head of aerating system places reactor body bottom, links to each other with nitrogen system with gas blower by Controlling System control by air delivering pipeline.
2, the automatization sequence batch (reaction unit that is used for aerobic particle mud cultivation and research according to claim 1, it is characterized in that position, reactor body middle and lower part is provided with heating system, it comprises the heating jacket that is coated on the reactor body middle and lower part, this heating jacket is provided with water-in and water outlet, links to each other with the constant-temperature hot water source with water pump by pipeline.
3, the automatization sequence batch (reaction unit that is used for aerobic particle mud cultivation and research according to claim 1 and 2, it is characterized in that stirring system comprises places the reactor body inner chamber and by the stir shaft of electric motor driving rotation, the above agitating vane of one-level or one-level is housed on this stir shaft.
4, the automatization sequence batch (reaction unit that is used for aerobic particle mud cultivation and research according to claim 1 and 2 is characterized in that stirring system is a hollow cylinder, is fixed in the middle of the reactor body, and micro porous aeration head places this cylindrical shell bottom inner chamber.
5, the automatization sequence batch (reaction unit that is used for aerobic particle mud cultivation and research according to claim 1 and 2, it is characterized in that stirring system comprises places the reactor body inner chamber and by the stir shaft of electric motor driving rotation, this stir shaft is a hollow tube, a gas box is established in the stir shaft upper end, link to each other with extraneous inlet pipe by this gas box, the lower end connects micropore aeration pipe, on its axle one-level or the above agitating vane of one-level is housed.
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| CNB2004100232043A CN1317208C (en) | 2004-05-17 | 2004-05-17 | Automatized sequential reaction unit for aerobic particle sludge culture and research |
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| CNB2004100232043A CN1317208C (en) | 2004-05-17 | 2004-05-17 | Automatized sequential reaction unit for aerobic particle sludge culture and research |
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| CN1317208C true CN1317208C (en) | 2007-05-23 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103708682A (en) * | 2013-12-30 | 2014-04-09 | 北京工业大学 | Method for coupling denitrifying dephosphatation and partial nitrification |
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| CN100381373C (en) * | 2006-03-09 | 2008-04-16 | 南京大学 | Method for cultivating nitrified granular sludge using anaerobic granular sludge |
| CN100393869C (en) * | 2006-10-20 | 2008-06-11 | 山东大学 | Use of rare-earth element in cultivating aerobic particle mud and controlling mud expansion |
| CN100443140C (en) * | 2007-03-02 | 2008-12-17 | 浦华控股有限公司 | Septum type overflowing weir shaped water discharging device |
| CN100548902C (en) * | 2008-01-24 | 2009-10-14 | 中国科学技术大学 | A kind of aerobic particle mud method and aerobic particle mud thereof of handling town sewage |
| CN101549903B (en) * | 2009-05-18 | 2011-07-20 | 浙江大学 | Rapid starting method for biological nitration |
| CN101941760B (en) * | 2009-07-06 | 2012-05-02 | 北京大学 | Device for culturing aerobic granular sludge and dedicated reactor thereof |
| CN108358305B (en) * | 2018-02-01 | 2020-12-11 | 北京化工大学 | Aerobic granular sludge double-chamber culture device and rapid culture method |
| CN111109092B (en) * | 2020-03-11 | 2022-04-12 | 江苏农牧科技职业学院 | Pet toilet convenient to clearance |
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| CN103708682B (en) * | 2013-12-30 | 2015-05-20 | 北京工业大学 | Method for coupling denitrifying dephosphatation and partial nitrification |
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| CN1579958A (en) | 2005-02-16 |
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