CN103755020A - Anaerobic ammonia oxidation quick start device based on acid-alkali regulation - Google Patents
Anaerobic ammonia oxidation quick start device based on acid-alkali regulation Download PDFInfo
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Abstract
The invention discloses an anaerobic ammonia oxidation quick start device based on acid-base regulation. The anaerobic ammonia oxidation quick start device comprises a reactor body, wherein a water inlet pipe and an up-flow reaction chamber are arranged at the lower end of the reactor body; an alkali guide pipe is arranged at the bottom of the up-flow reaction chamber, and an acid guide pipe is arranged at the middle part of the up-flow reaction chamber; the up-flow reaction chamber is connected with a settling chamber through an increasing coupling; a three-phase separator and an overflow dam are arranged in the settling chamber; the overflow dam is connected with a water outlet pipe; a gas collection chamber is positioned at the upper part of the settling chamber and is communicated with the settling chamber through a gas guide pipe; an exhaust pipe and a sealing pipe are arranged at the top of the gas collection chamber. The anaerobic ammonia oxidation quick start device disclosed by the invention can strengthen hydrolysis autocytolysis of heterotrophic bacteria in inoculated sludge, and reduce the density of the heterotrophic bacteria in the sludge; the pH value of a reaction solution can be controlled to be in the optimum range of anaerobic ammonium oxidation bacteria to guarantee the growth and propagation of the anaerobic ammonium oxidation bacteria; flocculent sludge generated through hydrolysis demise of granular sludge can be quickly washed out, the density of the anaerobic ammonium oxidation bacteria in the device can be increased, and the quick start of anaerobic ammonium oxidation is realized at last.
Description
Technical field
The present invention relates to wastewater biological denitrificaion field, particularly a kind of Anammox device for rapidly starting based on soda acid regulation and control.
Background technology
The Eleventh Five-Year Plan period, chemical oxygen demand (COD) discharge is effectively controlled, and ammonia nitrogen rises to the principal pollutant of surface water, the national surface water ammonia nitrogen phenomenon ubiquity that exceeds standard, due to body eutrophication very serious, the physical and mental health and the social stability that seriously jeopardize resident.China has included ammonia nitrogen in " 12 " total amount of pollutant hierarchy of control.Water body nitrate pollution is controlled has become current great environmental protection subject urgently to be resolved hurrily.
Anammox is the novel nitrogen transformation approach of finding the nineties in 20th century, and it refers under anaerobic, by the floating mould Pseudomonas bacterium of a class, take nitrite as electron acceptor(EA) oxidation ammonia, finally produces the process (formula 1) of nitrogen and a small amount of nitrate.
NH
4 ++ 1.31NO
2 -+ 0.0425CO
2→ 1.045N
2+ 0.22NO
3 -+ 1.87H
2o+0.09OH
-+ 0.0425CH
2o (formula 1)
This process is without adding organic carbon source and oxygen source, and sludge yield is low, and than traditional biological denitrification process, processing cost significantly reduces, and is considered to so far the Novel waste denitrogenation of water technology of tool Sustainable development characteristic.
But anaerobic ammonia oxidizing bacteria is autotroph, cell yield is very low, and the doubling time is very long, to envrionment conditions (as water quality, temperature etc.) sensitivity, causes the start-up course of reactor very slow.In addition,, because the abundance of anaerobic ammonia oxidizing bacteria in natural ecosystems is very low, conventionally in reactor, inoculate conventional activated sludge and come enrichment to cultivate Anammox mud.Wherein anaerobic grain sludge because of its source extensively, easily obtain, and can directly change anaerobic ammonium oxidation granular sludge into and receive much concern.But in anaerobic grain sludge, contain a large amount of heterotrophic bacteriums, can be on the impact of competing of the enrichment cultivating process of anaerobic ammonia oxidizing bacteria; In start-up course, also relate to the heterotroph reactions such as thalline self-dissolving, denitrification simultaneously, cause the reaction solution pH of start-up course constantly to change, further caused the start time of anaerobic ammonia oxidation reactor long, limited the through engineering approaches application of this technique.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of Anammox device for rapidly starting based on soda acid regulation and control is provided.
In order to realize above-mentioned technical purpose, technical scheme of the present invention is a kind of Anammox device for rapidly starting based on soda acid regulation and control, the reactor body and the up-flow reaction chamber that comprise hollow, the bottom of reactor body is settling chamber, top is collection chamber, between settling chamber and collection chamber, by dividing plate, separated, in settling chamber, centre portions is provided with the lower large little collection chamber that is down funnelform triphase separator and is communicated with top by airway, the inwall of settling chamber is provided with to the outstanding overflow weir in center, settling chamber, the outer wall of settling chamber is provided with the rising pipe that is communicated with overflow weir, the top of collection chamber is provided with vapor pipe and sealed tube, the bottom of up-flow reaction chamber is provided with water inlet pipe, up-flow reaction chamber lower sides is provided with leads alkali pipe, middle part sidewall is provided with acid guiding tube, up-flow reaction chamber is connected by funnelform increaser with reactor body.
Described a kind of Anammox device for rapidly starting based on soda acid regulation and control, described up-flow reaction chamber is provided with 3～5 equally distributed stopple coupons.
Described a kind of Anammox device for rapidly starting based on soda acid regulation and control, described up-flow reaction chamber is round shape, blade diameter length ratio is 1:10～1:15, and the diameter of up-flow reaction chamber and settling chamber is than being 1:2～1:4, and under up-flow reaction chamber and triphase separator, the diameter on edge is than being 1:1.2～1:1.6.
Described a kind of Anammox device for rapidly starting based on soda acid regulation and control, the described alkali pipe of leading is stretched to the center of up-flow reaction chamber by the outer wall level of up-flow reaction chamber, quantity is 2～5, parallel to each other being equally spaced in account for up-flow reaction chamber total height 1/3 place by bottom, the adjacent spacing of leading alkali pipe is 1～4cm, and leading the distribution total height l1 of alkali pipe in up-flow reaction chamber vertical range is 1:25～1:10 with the ratio of the height of flow lifting type reaction chamber.
Described a kind of Anammox device for rapidly starting based on soda acid regulation and control, described acid guiding tube is stretched to the center of up-flow reaction chamber by the outer wall level of up-flow reaction chamber, quantity is 2～5, parallel to each other being equally spaced in account for up-flow reaction chamber total height 1/2～2/3 place by bottom, the spacing of adjacent acid guiding tube is 2～5cm, the distribution total height l of acid guiding tube in up-flow reaction chamber vertical range
2with the ratio of the height of flow lifting type reaction chamber be 1:20～1:8.
Described a kind of Anammox device for rapidly starting based on soda acid regulation and control, described overflow weir is arranged in settling tank, height of weir 1～3cm, overflow weir is 2～4cm to the vertical range h of airway bottom, the radius r of the formed interior hollow cylinder of overflow weir
1radius r with settling tank cylinder
3ratio be 1:2～1:3, with under triphase separator along cylinder radius r
2ratio be 1:1.05-1:1.2.
Advantage of the present invention is: 1) set up-flow reaction chamber has higher aspect ratio, can guarantee in start-up course, and up-flow reaction chamber mainly carries out respectively thalline self-dissolving, denitrification from bottom to up.2) lead alkali pipe and be positioned at up-flow reaction chamber bottom, in start-up course, liquid can add dilute alkali along its distribution height to up-flow reaction chamber quantitative flow, guarantee the required basicity of thalline hydrolysis self-dissolving, with the reaction of reinforcement sludge acidication, the heterotrophic bacterium fast hydrolyzing in seed sludge is withered away, suitably improve the pH value of bottom reaction solution simultaneously, the shock-absorbing capacity of intensified response liquid, prevents reaction solution acidifying; 3) acid guiding tube is positioned at the middle and upper part of reactor, in start-up course, can to up-flow reaction chamber quantitative flow, add diluted acid along its distribution height, the high pH value causing because carrying out denitrification to neutralize this section reaction solution, make reacting liquid pH value maintain 7.5～8.3, be conducive to growth and the propagation of anaerobic ammonia oxidizing bacteria; 4) effluent adopting overflow weir, after mud mixture after three phase separation collides with overflow weir base plate in uphill process, can further strengthen mud-water separation effect, overflow weir also helps the rapid outflow reactor of floc sludge of withering away and disintegrating because of cell hydrolysis, prevent reactor plugs, and objectively increased the quantity of function yeast in device, finally accelerated the start-up course of Anammox.
Below in conjunction with accompanying drawing, the invention will be further described.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is that Figure 1A-A ' is to sectional view;
Fig. 3 is that the water outlet pH value of the Anammox device for rapidly starting start-up course based on soda acid regulation and control changes;
Fig. 4 is that the Inlet and outlet water substrate concn of the Anammox device for rapidly starting start-up course based on soda acid regulation and control changes;
Fig. 5 is that the pollutants removal rate of the Anammox device for rapidly starting start-up course based on soda acid regulation and control changes;
Wherein, water inlet pipe 1, flow lifting type reaction chamber 2, settling chamber 3, collection chamber 4, overflow weir 5, triphase separator 6, seal 7, vapor pipe 8, stopple coupon 9, acid guiding tube 10, lead alkali pipe 11, rising pipe 12, airway 13.
Embodiment
As shown in Figure 1, the present invention includes reactor body and the up-flow reaction chamber of hollow, the bottom of reactor body is settling chamber, top is collection chamber, between settling chamber and collection chamber, by dividing plate, separated, in settling chamber, centre portions is provided with the lower large little collection chamber that is down funnelform triphase separator and is communicated with top by airway, the inwall of settling chamber is provided with to the outstanding overflow weir in center, settling chamber, the outer wall of settling chamber is provided with the rising pipe that is communicated with overflow weir, the top of collection chamber is provided with vapor pipe and sealed tube, the bottom of up-flow reaction chamber is provided with water inlet pipe, up-flow reaction chamber lower sides is provided with leads alkali pipe, middle part sidewall is provided with acid guiding tube, up-flow reaction chamber is connected by funnelform increaser with reactor body.Up-flow reaction chamber is provided with 3～5 equally distributed stopple coupons.Up-flow reaction chamber is round shape, and blade diameter length ratio is 1:10～1:15, and the diameter of up-flow reaction chamber and settling chamber is than being 1:2～1:4, and under up-flow reaction chamber and triphase separator, the diameter on edge is than being 1:1.2～1:1.6.Lead alkali pipe and by the outer wall level of up-flow reaction chamber, stretched to the center of up-flow reaction chamber, quantity is 2～5, parallel to each other being equally spaced in account for up-flow reaction chamber total height 1/3 place by bottom, the adjacent spacing of leading alkali pipe is 1～4cm, and leading the distribution total height l1 of alkali pipe in up-flow reaction chamber vertical range is 1:25～1:10 with the ratio of the height of flow lifting type reaction chamber.Acid guiding tube is stretched to the center of up-flow reaction chamber by the outer wall level of up-flow reaction chamber, quantity is 2～5, parallel to each other being equally spaced in account for up-flow reaction chamber total height 1/2～2/3 place by bottom, the spacing of adjacent acid guiding tube is 2～5cm, the distribution total height l of acid guiding tube in up-flow reaction chamber vertical range
2with the ratio of the height of flow lifting type reaction chamber be 1:20～1:8.Overflow weir is arranged in settling tank, height of weir 1～3cm, and overflow weir is 2～4cm to the vertical range h of airway bottom, the radius r of the formed interior hollow cylinder of overflow weir
1radius r with settling tank cylinder
3ratio be 1:2～1:3, with under triphase separator along cylinder radius r
2ratio be 1:1.05-1:1.2.
Anammox device for rapidly starting based on soda acid regulation and control can be built by synthetic glass and steel plate, and settling chamber is positioned at the top of up-flow reaction chamber; Collection chamber is positioned at top, settling chamber.Seed sludge can add reactor by the sealed tube of collection chamber, by gravity settling effect, through airway and triphase separator, enters in up-flow reaction chamber.Containing ammonia inorganic wastewater, be plug flow and enter up-flow reaction chamber by bottom water inlet pipe, Anammox reaction occurs in flow lifting type reaction chamber, produce nitrogen, by nitrogen, carried and on mud mixture in triphase separator, realize mud, water, gas three phase separation.Nitrogen after separation enters collection chamber by airway, after by vapor pipe discharger; Granule sludge is back to up-flow reaction chamber by gravity settling effect, realizes sludge circulation, keeps high sludge concentration, and strengthens substrate degradation, thereby guarantee that the efficient stable of reactor moves; Sewage and floc sludge by after overflow weir by rising pipe discharger.
When inoculation anaerobic grain sludge starts the anaerobic ammonium oxidation apparatus based on soda acid regulation and control, because containing a large amount of heterotrophic bacteriums in anaerobic grain sludge, under inorganic condition, the heterotrophic bacterium in mud is hydrolyzed extinction gradually because being difficult to obtain matrix.By leading alkali pipe, quantitatively to bottom of device stream, add pH=8～10 sig water (as supercarbonate etc.), to improve reacting liquid basicity and surge capability thereof, self-dissolving, the death of strengthening autotrophic bacteria, and then reduced the quantity of heterotrophic bacterium; The stream liquid that adds dilute alkali also can be alleviated the pH value that causes because of sludge hydrolysis, acidification and reduces, and makes reaction solution pH maintain the optimum scope (7.5～8.3) of anaerobic ammonia oxidizing bacteria.Waste water is along up-flow reaction chamber access to plant central region, because of the organism that sludge hydrolytic discharges, can, by the denitrifying bacteria in mud as electron donor generation denitrification, by nitrite and nitrate reduction, be nitrogen, cause pH to raise, and then suppress Anammox.By acid guiding tube, the diluted acid of pH=2～5 (example hydrochloric acid, sulfuric acid etc.) quantitative flow is added to reactor middle part, can alleviate the pH causing because of denitrification raises, maintain reacting liquid pH value at the optimum range of anaerobic ammonia oxidizing bacteria, thereby be conducive to growth and the propagation of anaerobic ammonia oxidizing bacteria.Mud, water mixture enter triphase separator and carry out mud, water, gas three phase separation under aerogenesis rolling action, gas is discharged after collection chamber is collected, the granule sludge with greater density is back to up-flow reaction chamber, the floc sludge producing because of sludge hydrolytic is worked as because of its density and water, through overflow weir, with water, discharge rapidly in the lump, thereby reduced quantity and the density of heterotrophic bacterium in seed sludge, increased the anaerobic ammonia oxidizing bacteria density of up-flow reaction chamber, finally realized this anaerobic ammonium oxidation apparatus and start fast.
The Anammox device for rapidly starting of employing based on soda acid regulation and control, the anaerobic grain sludge of Hunan paper mill effluent treatment station is taken from inoculation, by the water system that overflows of described soda acid regulation and control and uniqueness, device water outlet pH value all-the-time stable is in 7.5～8.2, from the 32nd day, observe lasting, obvious Anammox phenomenon, through operation in 80 days, the volumetric loading of this device reached 5433mg/ (Ld).Experimental result shows, the start time of this device and startability are all better than the conventional anaerobic ammonium oxidation apparatus of bibliographical information inoculation anaerobic grain sludge.
Claims (6)
1. the Anammox device for rapidly starting based on soda acid regulation and control, it is characterized in that, the reactor body and the up-flow reaction chamber that comprise hollow, the bottom of reactor body is settling chamber, top is collection chamber, between settling chamber and collection chamber, by dividing plate, separated, in settling chamber, centre portions is provided with the lower large little collection chamber that is down funnelform triphase separator and is communicated with top by airway, the inwall of settling chamber is provided with to the outstanding overflow weir in center, settling chamber, the outer wall of settling chamber is provided with the rising pipe that is communicated with overflow weir, the top of collection chamber is provided with vapor pipe and sealed tube, the bottom of up-flow reaction chamber is provided with water inlet pipe, up-flow reaction chamber lower sides is provided with leads alkali pipe, middle part sidewall is provided with acid guiding tube, up-flow reaction chamber is connected by funnelform increaser with reactor body.
2. a kind of Anammox device for rapidly starting based on soda acid regulation and control according to claim 1, is characterized in that, described up-flow reaction chamber is provided with 3～5 equally distributed stopple coupons.
3. a kind of Anammox device for rapidly starting based on soda acid regulation and control according to claim 1, it is characterized in that, described up-flow reaction chamber is round shape, blade diameter length ratio is 1:10～1:15, the diameter of up-flow reaction chamber and settling chamber is than being 1:2～1:4, and under up-flow reaction chamber and triphase separator, the diameter on edge is than being 1:1.2～1:1.6.
4. a kind of Anammox device for rapidly starting based on soda acid regulation and control according to claim 1, it is characterized in that, the described alkali pipe of leading is stretched to the center of up-flow reaction chamber by the outer wall level of up-flow reaction chamber, quantity is 2～5, parallel to each other being equally spaced in account for up-flow reaction chamber total height 1/3 place by bottom, the adjacent spacing of leading alkali pipe is 1～4cm, and leading the distribution total height l1 of alkali pipe in up-flow reaction chamber vertical range is 1:25～1:10 with the ratio of the height of flow lifting type reaction chamber.
5. a kind of Anammox device for rapidly starting based on soda acid regulation and control according to claim 1, it is characterized in that, described acid guiding tube is stretched to the center of up-flow reaction chamber by the outer wall level of up-flow reaction chamber, quantity is 2～5, parallel to each other being equally spaced in account for up-flow reaction chamber total height 1/2～2/3 place by bottom, the spacing of adjacent acid guiding tube is 2～5cm, the distribution total height l of acid guiding tube in up-flow reaction chamber vertical range
2with the ratio of the height of flow lifting type reaction chamber be 1:20～1:8.
6. a kind of Anammox device for rapidly starting based on soda acid regulation and control according to claim 1, it is characterized in that, described overflow weir is arranged in settling tank, height of weir 1～3cm, overflow weir is 2～4cm to the vertical range h of airway bottom, the radius r of the formed interior hollow cylinder of overflow weir
1radius r with settling tank cylinder
3ratio be 1:2～1:3, with under triphase separator along cylinder radius r
2ratio be 1:1.05-1:1.2.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107381806A (en) * | 2017-09-07 | 2017-11-24 | 中南大学 | The water feed apparatus and method of a kind of anaerobic reactor |
| RU2643976C1 (en) * | 2016-11-08 | 2018-02-06 | Федеральное государственное бюджетное учреждение науки Институт катализа им. Г.К. Борескова Сибирского отделения Российской академии наук (ИК СО РАН) | Reactor for hydrolysis reactions |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101066805A (en) * | 2007-06-05 | 2007-11-07 | 浙江大学 | Efficient anaerobic ammoxidation reactor |
| CN101381157A (en) * | 2008-10-07 | 2009-03-11 | 浙江大学 | Bacterial fed-batch anaerobic ammonium oxidation apparatus and technology thereof |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101066805A (en) * | 2007-06-05 | 2007-11-07 | 浙江大学 | Efficient anaerobic ammoxidation reactor |
| CN101381157A (en) * | 2008-10-07 | 2009-03-11 | 浙江大学 | Bacterial fed-batch anaerobic ammonium oxidation apparatus and technology thereof |
Non-Patent Citations (2)
| Title |
|---|
| 唐崇俭等: "中试厌氧氨氧化反应器的启动与调控", 《生物工程学报》, vol. 25, no. 3, 25 March 2009 (2009-03-25), pages 406 - 412 * |
| 陈建伟等: "低pH对高负荷厌氧氨氧化反应器性能的影响", 《高校化学工程学报》, vol. 24, no. 2, 30 April 2010 (2010-04-30), pages 320 - 324 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2643976C1 (en) * | 2016-11-08 | 2018-02-06 | Федеральное государственное бюджетное учреждение науки Институт катализа им. Г.К. Борескова Сибирского отделения Российской академии наук (ИК СО РАН) | Reactor for hydrolysis reactions |
| CN107381806A (en) * | 2017-09-07 | 2017-11-24 | 中南大学 | The water feed apparatus and method of a kind of anaerobic reactor |
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