CN103159321B - Apparatus for microbial treatment of high-concentration ammonia-nitrogen wastewater - Google Patents
Apparatus for microbial treatment of high-concentration ammonia-nitrogen wastewater Download PDFInfo
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- CN103159321B CN103159321B CN201110404025.4A CN201110404025A CN103159321B CN 103159321 B CN103159321 B CN 103159321B CN 201110404025 A CN201110404025 A CN 201110404025A CN 103159321 B CN103159321 B CN 103159321B
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Abstract
The invention discloses an apparatus for microbial treatment of high-concentration ammonia-nitrogen wastewater. The apparatus is composed of a reactor main body, a temperature controller, a pump, etc. The reactor main body is a cuboid structure and prepared by transparent synthetic glass or phenoplasts. The reactor main body is divided into 3-6 same compartments, and each compartment is divided into two regions of different sizes and is filled with zeolite, maifan stone and other natural minerals. One end of the reactor is provided with a liquid inlet while the other end is provided with a liquid outlet and a water collecting groove which is provided with two outlets: a water outlet and a backflow port. The reactor main body is nested in a water bath. A to-be-processed liquid is introduced into the reactor main body through a water pump, separated and degraded by microorganism, and then introduced into the water collecting groove through a drain outlet, wherein supernatant in the water collecting groove enters a liquid collecting barrel through the water outlet, and a sinking liquid flows back to the reactor main body through a reflux pump. A degradation process of the high-concentration ammonia-nitrogen wastewater can be realized under a temperature of 30-40 DEG C, a reflux ratio of 2-5 : 1 and a pH of 7.0-8.5.
Description
Technical field
The invention belongs to environmental technology field, particularly a kind of device for microbiological treatment high-concentration ammonia nitrogenous wastewater.
Background technology
Along with the develop rapidly of China's economic construction, water pollution problems becomes increasingly conspicuous, and the quantity discharged of nitrogen pollutant also increases day by day, and the ammonia nitrogen concentration in waste water is also more and more higher, has caused body eutrophication, has upset aquatic ecosystem.Water pollutes and the dual-pressure of shortage of water resources has seriously restricted China's economic social development.
The method of denitrogenation of waste water has Physical, chemical method and biological process etc., and wherein because biological process has, consumed energy is less, cost is comparatively cheap, by product is few, can not cause to environment the advantages such as secondary pollution, applies more in Practical Project.In traditional biological denitrification method, the processing to ammonia nitrogen in waste water, is mainly by first nitrated, rear denitrifying mode, and ammonia nitrogen is finally converted into nitrogen.Yet this mode usually needs to supplement organic carbon source in pending waste water, improves the carbon-nitrogen ratio of pending waste water, needs to consume a large amount of oxygen, meets microbial growth needs simultaneously.
For the shortcoming of traditional biological denitrogenation method, various countries environmental protection scientific worker is trying to explore always.Discovered in recent years a kind of method of Anammox, do not need additional organic carbon source and oxygen just can effectively remove Coal Gas Washing Cycling Water ammonia nitrogen.Anammox is a kind of with NH
4 +for electron donor, with NO
2 -new bio denitrification reaction for electron acceptor(EA), has good development prospect in wastewater biological denitrificaion field.At present for this method, developed various new bio-reactor, as: a < < anaerobic ammonia oxidation reactor > > (patent No. ZL200520116708.X), < < upflow type anaerobic ammonia oxidation biofilm reactor > > (patent No. ZL03255788.4), the < < anaerobic ammonoxidation bacterium concentrating device > > (patent No.: ZL200720303314.4) etc.Yet these methods adopt the form of up-flow reactor mostly, exist active sludge easily with water discharge, the shortcoming such as start time is long, flow process is short, treatment effect is low.
Summary of the invention
Main purpose of the present invention is for deficiency of the prior art, proposes a kind of for microbiological treatment wastewater with high ammonia nitrogen concentration device.
The present invention is achieved through the following technical solutions: described for microbiological treatment high-concentration ammonia nitrogenous wastewater device, mainly waste liquid storage tank, reactor body, intake pump, gathering barrel, temperature controller, reflux pump, exhaust gas collector and various pipeline, consist of, the filler in reactor body is comprised of zeolite or volcanized rock or medical stone etc.The pending waste water of ammonia nitrogen in high density is stored in waste liquid storage tank, according to the flow velocity of setting, by intake pump, is pumped in reactor body, after the separated degraded of microorganism, by the leakage fluid dram on reactor body, enters water leg.Wherein the supernatant liquor in water leg enters liquid collecting bucket by the water outlet on it, and sinking liquid is back in reactor body by setting flow velocity under the effect of reflux pump by the refluxing opening on it, continues by microbiological treatment.In reactor body, treatment solution temperature is realized by the water temperature in sea water bath by controlling outside it.
Described reactor body is rectangular structure, and length is 50～60cm, and wide is 20～30cm, and height is 20～25cm, adopts the materials such as transparent synthetic glass or opaque phenoplast to make.Reactor body inside is divided into 3～6 identical compartments completely, and the liquid pass hole by dividing plate upper end between different compartments communicates.Each compartment is separated into two regions that vary in size by folding shape plate again, and these two regions communicate with main body base plate compartment by folding shape plate lower end.Respectively there is a thief hatch different zones side of different compartments, and wherein thief hatch I in zonule is near reactor upper end, and large area sampling mouth II is near reactor lower end.Reactor body top is provided with seal cover board, and on cover plate, the large regional location of corresponding different compartments is provided with venting port.In reactor one side, be provided with fluid inlet, opposite side is provided with leakage fluid dram.Leakage fluid dram is connected with water leg.Water leg is connected to reactor body.Water leg has two liquid exits, and one is water outlet, another is refluxing opening.Reactor body is nested in the sea water bath of being made by materials such as synthetic glass or opaque phenoplast.Fluid temperature in sea water bath is controlled by well heater and temperature controller.
Folding shape plate in described reactor is comprised of riser and flap, and the angle forming between flap and riser is 120 °～150 °, and wherein riser height is 18～22cm, and flap length is 3～4cm.
On described seal cover board, the large regional location of corresponding different compartments is provided with venting port, on cover plate and reactor body, along intermediate cryptographic seal washer, then with bolt, fixes, and guarantees the stopping property of reactor body.
In described compartment, 2 its Length Ratios of region are 1: 4～6, wherein zonule in feed-water end, large region in water side.
Described dividing plate is used for reactor body to be separated into different compartments, and every dividing plate is apart from vertical range 1～2cm place on edge on reactor, and the row's diameter that distributes is that 0.2～0.4cm, quantity are the liquid pass hole of 5～10.
Described thief hatch I and thief hatch II are 2～3cm apart from the vertical range of edge on reactor and reactor base plate respectively, and aperture is 1.0～2cm.
Described fluid inlet and the aperture of leakage fluid dram are 1.0～2cm, apart from the vertical range on edge on reactor, are respectively 1～2cm and 2～3cm.
The filler loading in described reactor body is zeolite or medical stone or the volcanized rock etc. of particle diameter 0.1～0.5cm, not only can be carrier and nutrient that microorganism provides growth, but also can hold back microorganism, prevents that microorganism from outflowing with water.
Water temperature in described sea water bath regulates the working order of well heater to be controlled by temperature controller, guarantees that the microbial environment temperature in reactor body is 30～40 ℃.
In described reflux pump, in flow rate of liquid and liquid feeding pump, flow rate of liquid ratio is 2～5: 1.
Described reflux pump and liquid feeding pump type are peristaltic pump.
The flow process of described pending high-concentration ammonia nitrogenous wastewater in reactor body is: pending liquid enters reactor body the first compartment zonule by fluid inlet, due to stopping of folding shape plate, current are first downward from compartment top, along folding shape plate direction, by the space between folding shape plate and reactor base plate, enter the large region of compartment another part.At this, owing to there being stopping of dividing plate, treatment solution, to upper reaches, arrives upper compartment, and the row's liquid pass hole by dividing plate upper end, arrives the second compartment.Water (flow) direction in each compartment is identical.At reactor body least significant end compartment, treatment solution enters into water leg by the leakage fluid dram on it.Treatment solution precipitates at water leg, and supernatant liquor enters gathering barrel by water outlet, thereby obtains the final product of processing.Sinking liquid is back in reactor body by refluxing opening under the effect of reflux pump, and organism wherein and ammonia nitrogen are by the further degradation treatment of microorganism.
Described thief hatch can be used to Real-time Collection sample, thereby can grasp the dynamic change of water quality in wastewater treatment process.
Described venting port can be used to collect the waste gas producing in wastewater treatment process, by analyzing to understand, produces waste gas composition and each component concentration.
Ammonium nitrogen content in described pending high-concentration ammonia nitrogenous wastewater is 200～500mg/L, NH
4 +-N/NO
2 -the concentration ratio of-N is 1～1.5: 1, pH7.0～8.5.
Described envrionment conditions refers to: water inlet NH
4 +-N/NO
2 -the concentration ratio of-N is 1～1.5: 1, and in treating processes, temperature is 30～40 ℃, and pH is 7.0～8.5, and intake pump flow velocity is made as 5～10L/d, and reflux ratio is made as 2～5: 1.
The present invention's advantage is compared with prior art:
1, by testing sieve, select the zeolite of particle diameter 0.1～0.5cm or the natural mineral such as medical stone or volcanized rock as reactor body filler, not only can be microorganism provides carrier and the nutrient of growth, but also can hold back microorganism, and prevent that microorganism from outflowing with water, improve the processing efficiency of reactor.
2, built-in vertical flow deflector, reactor is separated into several reaction chambers of series connection, current guide upper and lower baffling to advance by flow deflector, one by one by the mud bed in reaction chamber, improved the path of pending waste water in reactor in unit volume, increased waste water and microorganism duration of contact, the substrate in water inlet fully contacts and the removal of being degraded with microorganism, has improved the degradation efficiency of ammonia nitrogen.
3, apply after this technology, the ammonia nitrogen nitric efficiency of waste water is high, can by mineralized nitrogen, be directly that nitrogen is removed, and is conducive to the regeneration of sewage, prevents body eutrophication.
4, be compared to traditional biological denitrification process, this technology does not need oxygen, the expense that has greatly reduced the volume of reactor and produced because of aeration.
5, this technology can be processed low ratio of carbon to ammonium waste water, does not need additional carbon, has saved running cost.
Accompanying drawing explanation
Fig. 1 is microbiological treatment high-concentration ammonia nitrogenous wastewater device workflow diagram.
Fig. 2 is reactor body structural representation of the present invention.
Embodiment
Microbiological treatment high-concentration ammonia nitrogenous wastewater device workflow as shown in Figure 1, waste liquid storage tank 18, intake pump 24, reactor body 21, treatment solution gathering barrel 20 are connected successively by pipeline, form the flow process of wastewater treatment.Reflux pump 19 is connected in parallel on reactor body 21, and formation processing liquid flows at reactor body 21 internal recycle, and treatment solution is back in reactor body 21.
The flow process of pending liquid in reactor body is: by fluid inlet 4, enter reactor body 21 first compartment zonules, due to stopping of folding shape plate 8, current are first downward from compartment top, along folding shape plate direction, by the space of rolling over 3 of shape plate 6 and reactor base plates, enter the large region of compartment another part.At this, owing to there being stopping of dividing plate 7, treatment solution, to upper reaches, arrives upper compartment, and the row's liquid pass hole 10 by dividing plate 7 upper ends, arrives the second compartment.Water (flow) direction in each compartment is identical.At the least significant end compartment of reactor body 21, treatment solution enters into water leg 11 by the leakage fluid dram 25 on it.Treatment solution is in water leg 11 precipitations, and supernatant liquor enters gathering barrel 20 by water outlet 12, thereby obtains the final product of processing.Sinking liquid is back in reactor body 21 by refluxing opening 13 under the effect of reflux pump 19, and organism wherein and ammonia nitrogen are by the further degradation treatment of microorganism.By regulating the flow velocity of intake pump 24 and reflux pump 19, control reflux ratio 2～5: 1.
In reactor body 21, be filled with zeolite or medical stone or volcanized rock etc. that particle diameter is 0.1～0.5cm, not only can be carrier and nutrient that microorganism provides growth, but also can hold back microorganism, prevent that it from outflowing with water.
Reactor body 21 is rectangular structure, and length is 50～60cm, and wide is 20～30cm, and height is 20～25cm, adopts the materials such as transparent synthetic glass or opaque phenoplast to make.Reactor body 21 inside are divided into 3～6 identical compartments completely by dividing plate 7, and the liquid pass hole 10 by dividing plate 7 upper ends between different compartments communicates.Each compartment is separated into two regions that vary in size by folding shape plate 8 again, and these two regions communicate with bottom part body compartment by folding shape plate lower end.Respectively there is a thief hatch different zones side of different compartments, and wherein thief hatch I5 in zonule is near reactor upper end, and large area sampling mouth II9 is near reactor lower end.Reactor body 21 tops are provided with seal cover board 1, and on cover plate 1, the large regional location of corresponding different compartments is provided with venting port 14.In reactor one side, be provided with fluid inlet 4, opposite side is provided with leakage fluid dram 25.Leakage fluid dram 25 is connected with water leg 11.Water leg 11 is connected on reactor body 21.Water leg 11 has two liquid exits, and one is water outlet 12, another is refluxing opening 13.Reactor body 21 is nested in the sea water bath 15 of being made by materials such as synthetic glass or opaque phenoplast.
Treatment solution temperature in reactor body 21, the working order of controlling the well heater 16 in the sea water bath 15 of reactor body 21 outer quilts by temperature controller 22 realizes.In addition, in sea water bath 15, place a compact submersible pump 17, by submersible pump 17, realize the water cycle in sea water bath 15, thereby it is consistent to realize even water temperature.
In this example, roll over shape plate 8 and be comprised of riser 26 and flap 6, the angle of flap 6 and 26 compositions of riser is 120 °～150 °, and wherein riser 26 is highly 18～22cm, and flap 6 length are 3.0～4.0cm.
In this example, on seal cover board 1, the large regional location of corresponding different compartments is provided with venting port 14, on cover plate 1 and reactor body, along 2 intermediate cryptographic seal washers, then with bolt, fixes, and guarantees the stopping property of reactor body 21.
In this example thief hatch I5 and thief hatch II9 respectively apart from reactor along 2 and the vertical range of reactor base plate be 2.0～3.0cm, aperture is 1.0～2.0cm.
In this example, the aperture of fluid inlet 4 and leakage fluid dram 25 is 1.0～2.0cm, apart from the vertical range along 2 on reactor, is respectively 1.0～2.0cm and 2.0～3.0cm.
Below in conjunction with specific embodiment, the invention will be further described.
1, choosing aeration tank, municipal sewage plant active sludge is seed sludge, and seed sludge concentration is MLSS=5～10kgMLSS/m
3.
2, reactor body 21 is outer by the Temperature Setting of sea water bath 15 and be controlled at 30～35 ℃.
3, by the simulated wastewater of preparation (NH wherein
4 +-N/NO
2 -the concentration ratio of-N is 1～1.5: 1, pH is 7.0～8.5, reactor start-up NH
4 +-N concentration is 50mg/L, NH after 2 months
4 +-N concentration is progressively brought up to as 300mg/L) be encased in waste liquid storage tank 18, by the flow of 5～10L/d, by liquid feeding pump 24, simulated wastewater is pumped in reactor body 21.Open reflux pump 19, setting flow velocity is 10～30L/d simultaneously.
4, by venting port 14, collect the gas that reactor body 21 discharges.
5, by the thief hatch Real-time Collection liquid sample of different positions on reactor body 21.
6, by water outlet 12, gather final outflow water, measure NH wherein
4 +-N, NO
2 -the concentration of the materials such as-N.
7, after device starts 2 months, NH in simulated wastewater
4 +during-N concentration 300mg/L, measure the NH in water outlet
4 +-N and NO
2 --N, all lower than 10mg/L, shows that the Anammox reaction in reactor is achieved and maintains.
Claims (14)
1. for the device of microbiological treatment high-concentration ammonia nitrogenous wastewater, it is characterized in that: this device is mainly comprised of waste liquid storage tank (18), intake pump (24), reactor body (21), reflux pump (19), gathering barrel (20), temperature controller (22), exhaust gas collector (23) and various pipeline; By set environment condition, utilize this device can realize the degradation treatment of high-concentration ammonia nitrogenous wastewater;
Described reactor body (21) is rectangular structure, adopts transparent synthetic glass or opaque phenolic material to make; Reactor body (21) is inner is divided into 3～6 identical compartments completely by dividing plate (7), and the liquid pass hole (10) by dividing plate (7) upper end between different compartments communicates; Each compartment is separated into two regions that vary in size by folding shape plate (8) again, and these two regions communicate with bottom part body compartment by folding shape plate lower end; Respectively there is a thief hatch different zones side of different compartments, and wherein zonule thief hatch I (5) is near reactor upper end, and large area sampling mouth II (9) is near reactor lower end; Reactor body (21) top is provided with seal cover board (1), and the large regional location of the upper corresponding different compartments of cover plate (1) is provided with venting port (14).In reactor one side, be provided with fluid inlet (4), opposite side is provided with leakage fluid dram (25); Leakage fluid dram (25) is connected with water leg (11); Water leg (11) is connected to reactor body (21); Water leg (11) has two liquid exits, and one is water outlet (12), another is refluxing opening (13); Reactor body (21) is nested in the sea water bath (15) of being made by synthetic glass or phenolic material; Water temperature in sea water bath (15) is achieved by the working order of temperature controller (22) control heater (16); The water that placement one miniature immersible pump (17) is realized in sea water bath (15) in sea water bath (15) carries out internal recycle, thereby guarantees that the even water temperature in sea water bath (15) is consistent; The pending waste water of described ammonia nitrogen in high density is stored in waste liquid storage tank (18), by intake pump (24), enters reactor body (21), after the separated degraded of microorganism, by leakage fluid dram (25), enters water leg (11); Supernatant liquor in water leg (11) enters liquid collecting bucket (20) by water outlet (12), and sinking liquid is back in reactor body (21) by reflux pump (19) by refluxing opening (13).
According to claim 1 for microbiological treatment high-concentration ammonia nitrogenous wastewater device, it is characterized in that: reactor body (21) length is 50～60cm, and wide is 20～30cm, and height is 20～25cm.
According to claim 1 for microbiological treatment high-concentration ammonia nitrogenous wastewater device, it is characterized in that: described folding shape plate (8) is comprised of riser (26) and flap (6), the angle forming between flap (6) and riser (26) is 115 °～150 °, wherein riser (26) is highly 18～22cm, and flap (6) length is 3～4cm.
According to claim 1 for microbiological treatment high-concentration ammonia nitrogenous wastewater device, it is characterized in that: the large regional location of the upper corresponding different compartments of described seal cover board (1) is provided with venting port (14), be used for the waste gas that collection and treatment process reactor main body (21) produces; On cover plate (1) and reactor body, along (2) intermediate cryptographic seal washer, then with bolt, fix, guarantee the stopping property of reactor body.
According to claim 1 for microbiological treatment high-concentration ammonia nitrogenous wastewater device, it is characterized in that: in described compartment, two its Length Ratios of region are 1: 4～6, wherein zonule in feed-water end, large region in water side.
According to claim 1 for microbiological treatment high-concentration ammonia nitrogenous wastewater device, it is characterized in that: described dividing plate (7) is used for reactor body to be separated into different compartments, every dividing plate (7) apart from reactor along vertical range 1～2cm place of (2), distributing one, to arrange diameter be that 0.2～0.4cm, quantity are the liquid pass hole (10) of 5～10.
According to claim 1 for microbiological treatment high-concentration ammonia nitrogenous wastewater device, it is characterized in that: described thief hatch I (5) and thief hatch II (9) are 2～3cm apart from the vertical range along (2) and reactor base plate (3) on reactor respectively, and aperture is 1.0～2cm.
According to claim 1 for microbiological treatment high-concentration ammonia nitrogenous wastewater device, it is characterized in that: the aperture of described fluid inlet (4) and leakage fluid dram (25) is 1.0～2cm, apart from the vertical range along (2) on reactor, be respectively 1～2cm and 2～3cm.
According to claim 1 for microbiological treatment high-concentration ammonia nitrogenous wastewater device, it is characterized in that: in described reactor body (21), the filler of filling is zeolite or medical stone or the volcanized rock of particle diameter 0.1～0.5cm, not only can be microorganism provides carrier and the nutrient of growth, but also can hold back microorganism, prevent that it from outflowing with water.
According to claim 1 for microbiological treatment high-concentration ammonia nitrogenous wastewater device, it is characterized in that: in described sea water bath (15), the temperature of water regulates the working order of well heater (16) to be controlled by temperature controller (22), guarantees that the microbial environment temperature in reactor body (21) is 30～40 ℃.
11. according to claim 1 for microbiological treatment high-concentration ammonia nitrogenous wastewater device, it is characterized in that: in flow rate of liquid and intake pump (24), flow rate of liquid ratio is 2～5: 1 in described reflux pump (19).
12. according to claim 1 for microbiological treatment high-concentration ammonia nitrogenous wastewater device, it is characterized in that: the type of described reflux pump (19) and intake pump (24) all adopts peristaltic pump.
13. according to the microbiological treatment high-concentration ammonia nitrogenous wastewater device of claim 1, it is characterized in that: the ammonium nitrogen content in described pending high-concentration ammonia nitrogenous wastewater is 200～500mg/L, NH
4 +-N/NO
2 -the concentration ratio of-N is 1～1.5: 1, pH7.0～8.5.
14. according to the microbiological treatment high-concentration ammonia nitrogenous wastewater device of claim 1, it is characterized in that: described envrionment conditions refers to: water inlet NH
4 +-N/NO
2 -the concentration ratio of-N is 1～1.5: 1, and in treating processes, temperature is 30～40 ℃, and pH is 7.0～8.5, and intake pump is that the flow velocity of peristaltic pump II24 is made as 5～10L/d, and reflux ratio is made as 2～5: 1.
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| CN108046364A (en) * | 2018-01-13 | 2018-05-18 | 常州大学 | Promote deamination catalyst treatment ammonia nitrogen in high density agricultural chemicals waste water device |
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| CN101050042A (en) * | 2007-05-11 | 2007-10-10 | 东南大学 | Equipment and method for treating wastewater difficult to be degraded by biology method of hydrolysis composite membrane |
| CN201240935Y (en) * | 2008-05-12 | 2009-05-20 | 大连交通大学 | Sewage processor with sloping plate type anaerobic baffle plate |
| CN102101720A (en) * | 2011-01-11 | 2011-06-22 | 彭永臻 | Device and method for denitrification of single stage autotroph in low-cellulose nitrate (CN) high-ammonia nitrogen waste water |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101050042A (en) * | 2007-05-11 | 2007-10-10 | 东南大学 | Equipment and method for treating wastewater difficult to be degraded by biology method of hydrolysis composite membrane |
| CN201240935Y (en) * | 2008-05-12 | 2009-05-20 | 大连交通大学 | Sewage processor with sloping plate type anaerobic baffle plate |
| CN102101720A (en) * | 2011-01-11 | 2011-06-22 | 彭永臻 | Device and method for denitrification of single stage autotroph in low-cellulose nitrate (CN) high-ammonia nitrogen waste water |
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