CN109368928A - A kind of dephosphorization denitrogenation devices and methods therefor based on short-cut denitrification reaction - Google Patents

A kind of dephosphorization denitrogenation devices and methods therefor based on short-cut denitrification reaction Download PDF

Info

Publication number
CN109368928A
CN109368928A CN201811390792.2A CN201811390792A CN109368928A CN 109368928 A CN109368928 A CN 109368928A CN 201811390792 A CN201811390792 A CN 201811390792A CN 109368928 A CN109368928 A CN 109368928A
Authority
CN
China
Prior art keywords
tank
pond
sludge
nitrogen
anaerobic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201811390792.2A
Other languages
Chinese (zh)
Inventor
徐雪祥
王金珂
常宏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hangzhou Xiang Xiang Environmental Engineering Co Ltd
Original Assignee
Hangzhou Xiang Xiang Environmental Engineering Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hangzhou Xiang Xiang Environmental Engineering Co Ltd filed Critical Hangzhou Xiang Xiang Environmental Engineering Co Ltd
Priority to CN201811390792.2A priority Critical patent/CN109368928A/en
Publication of CN109368928A publication Critical patent/CN109368928A/en
Pending legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/30Aerobic and anaerobic processes
    • C02F3/302Nitrification and denitrification treatment
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F2001/007Processes including a sedimentation step

Abstract

The present invention provides a kind of dephosphorization denitrogenation devices and methods therefors based on short-cut denitrification reaction, belong to technical field of biological sewage treatment.It, which solves substrate nitrite, cannot obtain the problems such as stablizing supply.The dephosphorization denitrogenation devices and methods therefor reacted based on short-cut denitrification, dephosphorization denitrogenation device includes anaerobic ammonia oxidizing bacteria biomass generator, collecting-tank, moving bed biological reaction tank and secondary settling tank, ejector is provided between anaerobic ammonia oxidizing bacteria biomass generator and moving bed biological reaction tank, the first connecting tube is connected between former pond and moving bed biological reaction tank, the second connecting tube is connected between moving-bed bioreactor and secondary settling tank, the bottom end of secondary settling tank is provided with triple valve, one end of triple valve is connected with the first connecting tube, its other end is used for spoil disposal, using moving-bed biofilm reaction tank+biomass generator combination technique, it avoids that the anaerobic ammonia oxidizing bacteria cultivation period too long enrichment factors such as unsuccessfully occur, realize the dephosphorization of continuous flow municipal sewage residue and the flora denitrogenation of high concentration Anammox, the present invention, which has to reduce, runs energy consumption The advantages that.

Description

A kind of dephosphorization denitrogenation devices and methods therefor based on short-cut denitrification reaction
Technical field
The invention belongs to technical field of biological sewage treatment, are related to a kind of apparatus and method of denitrogenation, in particular to a kind of Dephosphorization denitrogenation devices and methods therefor based on short-cut denitrification reaction.
Background technique
The discovery of anaerobic ammonia oxidizing bacteria changes people to the understanding of nitrogen cycle approach, makes sewage high concentration Anammox Flora denitrogenation is possibly realized.Anammox Cordycepps (Anammoxaceae), totally 6 attributes, respectively Candidatus Brocadia、Candidatus Kuenenia、Candidatus Anammoxoglobus、CandidatusJettenia、 Candidatus Anammoximicrobiummoscowii and Candidatus Scalindua.Due to anaerobic ammonia oxidation process It is that ammonia nitrogen and nitrite nitrogen are directly converted to nitrogen under anaerobic, while only need to is nitrous by ammonium oxidation in aerobic section Nitrogen omits subsequent nitrite nitrogen and is oxidized to nitrate nitrogen, so saving aeration quantity;Anaerobic ammonia oxidizing bacteria is by conventional denitrification process institute The additional carbon needed is omitted altogether, and the organic matter in sewage can carry out recycling methane phase to greatest extent, rather than be oxidized to Carbon dioxide.The methane of generation can be used as energy re-using again, so that sewage be made to turn waste into wealth, become " liquid golden ".
It is de- to be mainly used in the high-ammonia-nitrogen sewages such as digested sludge dehydration liquid for sewerage short-cut nitrifying anaerobic ammonia oxidation technology at present Nitrogen, if can will be at the water such as Anammox Technique Popularizing to municipal sewage, trade effluent, livestock and poultry cultivation sewage and landfill leachate Reason is then expected to that municipal sewage, trade effluent, livestock and poultry cultivation sewage or landfill leachate factory is made to have energy consumption rich and influential family's transformationization energy certainly The enterprise for giving or supplying outside.Anammox technology is limited in municipal sewage, trade effluent, livestock and poultry cultivation sewage and landfill leachate The bottleneck for the treatment of plant's application is that the substrate nitrite of Anammox reaction cannot obtain stablizing supply.
Summary of the invention
The purpose of the present invention is to municipal sewage, trade effluent, livestock and poultry cultivation sewage or landfill leachate treatment mistakes Nitrite nitrogen is difficult to stablize the problem of acquisition in journey, proposes a kind of dephosphorization denitrogenation device based on short-cut denitrification reaction, with And a kind of denitrogenation method based on short-cut denitrification reaction, so that municipal sewage, trade effluent, livestock and poultry cultivation sewage and rubbish seep Biological phosphate-eliminating and the flora denitrogenation of high concentration Anammox are realized in filtrate processing etc., are reduced municipal sewage, trade effluent, livestock and poultry and are supported Grow the energy consumptions such as sewage and landfill leachate treatment.
Object of the invention can be realized by the following technical scheme: a kind of dephosphorization denitrogenation device, which is characterized in that including Anaerobic ammonia oxidizing bacteria biomass generator, collecting-tank, moving bed biological reaction tank and secondary settling tank, the anaerobic ammonia oxidizing bacteria biology It is provided with ejector between generator and moving bed biological reaction tank, connects between the collecting-tank and moving bed biological reaction tank It is connected to the first connecting tube, the second connecting tube, the secondary settling tank are connected between the moving bed biological reaction tank and secondary settling tank Bottom end be provided with triple valve, one end of the triple valve is connected with the first connecting tube, the other end be used for spoil disposal.
In a kind of above-mentioned dephosphorization denitrogenation device, the moving bed biological reaction tank is made of several ponds, from From left to right first is anaerobic pond, second and third is anoxic pond, and remaining is aerobic tank, in the anaerobic pond and anoxic pond Floating stuffing is all had, the tolerance tune for being provided with aeration head in each aerobic tank and being used in combination with aeration head Valve is saved, the tail end of the regulating valve is provided with gas flowmeter and blower.
In a kind of above-mentioned dephosphorization denitrogenation device, described ejector one end and anaerobic ammonia oxidizing bacteria biomass generator phase Connection, the other end are connected with the anaerobic pond in moving bed biological reaction tank.
In a kind of above-mentioned dephosphorization denitrogenation device, several water are provided in each anaerobic pond and anoxic pond Lower impeller, each propeller are set on the side wall in pond.
In a kind of above-mentioned dephosphorization denitrogenation device, I type or S type or baffling may be designed to according to water (flow) direction between pond Type, and connected between each pond by flowing hole.
In a kind of above-mentioned dephosphorization denitrogenation device, first between the collecting-tank and moving bed biological reaction tank connects Intake pump is provided on adapter tube.
In a kind of above-mentioned dephosphorization denitrogenation device, overflow valve and blow-down pipe are provided on the collecting-tank, it is described The upper end of overflow valve setting and collecting-tank, the blow-down pipe are located at the bottom of collecting-tank.
In a kind of above-mentioned dephosphorization denitrogenation device, the last one aerobic tank and first anoxic pond are provided with reflux dress It sets, the reflux unit is nitrification liquid reflux pump or reflux weir.
In a kind of above-mentioned dephosphorization denitrogenation device, it is provided on the triple valve and the connecting line of the first connecting tube Returned sludge valve with mutually contacted with sludge reflux pump with sludge reflux pump, the returned sludge valve, and returned sludge valve position In close to triple valve side.
In a kind of above-mentioned dephosphorization denitrogenation device, the aeration head in each aerobic tank is adjusted with the tolerance matched It contacts between valve setting, between each air volume regulating valve and closes and mutually contacted with blower after connection again.
In a kind of above-mentioned dephosphorization denitrogenation device, the bottom end of the secondary settling tank is tapered.
A kind of the step of dephosphorization denitrification method based on short-cut denitrification reaction, method are as follows:
1) activation system: inoculation traditional wastewater treatment plant activated sludge is added to moving bed biological reaction tank, keeps sludge dense Degree is 1500-3000mg/L;Start anaerobic ammonia oxidizing bacteria biomass generator, endlessly conveys 2 × 10 to anaerobic pond6CFU/ The high concentration Anammox flora of ml or more or inoculation have hung up properly the floating stuffing of Anammox biomembrane to moving bed The anaerobic pond of biological reaction pool and anoxic zone, floating stuffing packing volume ratio are 15-40%;
2) runing adjustment:
2.1) sewage and secondary settling tank returned sludge of municipal sewage, trade effluent, livestock and poultry cultivation sewage or landfill leachate Enter the anaerobic pond of moving bed biological reaction tank, the height generated using anaerobic ammonia oxidizing bacteria biomass generator submerged fermentation after mixing Denitrifying bacterium on concentration Anammox flora or anaerobic pond suspended filler biofilm carries out short-cut denitrification, by returned sludge In nitrate-nitrogen reduction be nitrite nitrogen, nitrite nitrogen and mineralized nitrogen are again nitrogen by the anaerobic ammonia oxidizing bacteria on biomembrane, Then anaerobic phosphorus release effect occurs for the polyP bacteria in floc sludge;The muddy water mixed solution and reflux nitrification liquid of anaerobic pond enter together Anoxic zone, denitrifying bacterium carries out short-cut denitrification on the pond suspended filler biofilm, by the nitrate-nitrogen reduction in the nitrification liquid that flows back For nitrite nitrogen, then nitrite nitrogen and mineralized nitrogen are nitrogen by the anaerobic ammonia oxidizing bacteria in biomembrane;Last sewage enters Ammonium oxidation remaining in sewage is nitrate nitrogen by aerobic tank, ammonia oxidation bacteria and nitrite oxidizing bacteria in floc sludge;
2.2) moving bed biological reaction tank aerobic tank return sludge ratio is 50-200%;By adjusting the discharge of excess sludge Amount, the sludge age control for controlling floc sludge in reactor is 15-20 days;
2.3) by adjusting the open degree of air volume regulating valve, regulate and control the oxygenation capacity of aerobic tank, the dissolution of control aerobic tank front end Oxygen concentration is 0.5-1.5mg/L, and dissolved oxygen concentration is 0.3-0.6mg/L in the last one pond of aerobic tank;
2.4) the municipal sewage hydraulic detention time of moving bed biological reaction tank is 8-14h, when trade effluent hydraulic retention Between be 1-3d, livestock and poultry cultivation sewage hydraulic detention time be 2-4d, landfill leachate sewage hydraulic detention time be 4-6d.Wherein Municipal sewage anaerobic HRT is 1.5-3h, and anoxic hydraulic detention time is 3-6h;Trade effluent anaerobism hydraulic retention Time is 10-24h, and anoxic hydraulic detention time is 1-2d;Livestock and poultry cultivation anerobic sowage hydraulic detention time is 1-2d, anoxic water The power residence time is 1-2d;Landfill leachate anerobic sowage hydraulic detention time is 1-2d, and anoxic hydraulic detention time is 2-4d;
2.5) mixed liquid recycle ratio is 100-200%;When anoxic zone effluent nitrate-nitrogen or nitrite nitrogen are greater than 3mg/L, Reduce mixed liquid recycle ratio;When aerobic tank effluent nitrate-nitrogen concentration is greater than 10mg/L, mixed liquid recycle ratio is improved.
Compared with prior art, the present invention is based on the dephosphorization denitrification methods of short-cut denitrification reaction, with traditional biological dephosphorization Denitrification process is compared and is had the advantage that
1) ammonia nitrogen 60% in sewage is reacted by Anammox and is removed, so only remaining 40% ammonia nitrogen enters Oxygen pond, therefore the oxygen demand of aerobic tank can reduce by more than 50, and then can save system operation energy consumption.
2) the ammonia nitrogen amount of aerobic tank oxidation reduces by 60%, so that the nitrate in the nitrification liquid of reflux reduces by 60%, So that the amount for the nitrate nitrogen that anoxic needs to restore reduces by 60%;Simultaneously nitrate nitrogen need to only be reduced to nitrite nitrogen, without into One step is reduced to nitrogen, therefore denitrifying carbon source demand can be greatly reduced.
3) high concentration Anammox flora denitrifying sludge low output can reduce sewage plant sludge disposal costs.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of this dephosphorization denitrogenation device.
In figure, 1, anaerobic ammonia oxidizing bacteria biomass generator;2, collecting-tank;3, moving bed biological reaction tank;4, secondary settling tank;5, Ejector;6, the first connecting tube;7, the second connecting tube;8, triple valve;9, anaerobic pond;10, anoxic pond;11, aerobic tank;12, it exposes Gas head;13, air volume regulating valve;14, gas flowmeter;15, blower;16, underwater impeller;17, intake pump;18, overflow valve; 19, blow-down pipe;20, reflux unit;21, returned sludge valve;22, sludge reflux pump.
Specific embodiment
Following is a specific embodiment of the present invention in conjunction with the accompanying drawings, technical scheme of the present invention will be further described, However, the present invention is not limited to these examples.
As shown in Figure 1, including that anaerobic ammonia oxidizing bacteria biology occurs based on the dephosphorization denitrification method that short-cut denitrification reacts Device 1, collecting-tank 2, moving bed biological reaction tank 3 and secondary settling tank 4, collecting-tank 2 are equipped with overflow pipe and blow-down pipe 19;Collecting-tank 2 is logical Intake pump 17 is crossed to be connected with the first connecting tube 6;Moving bed biological reaction tank 3 divides for several ponds, above and below water (flow) direction The flowing hole that is staggered connects each pond;First pond is the anaerobic pond 9 equipped with floating stuffing, second and third pond is to set There is the anoxic zone of floating stuffing, remaining pond is aerobic tank 11;Anaerobic pond 9 and anoxic zone are equipped with underwater impeller 16, aerobic tank 11 are oxygenated by being equipped with the aerating system of blower 15, gas flowmeter 14, air volume regulating valve 13 and aeration head;Moving bed is raw Object reaction tank 3 is connect by the second connecting tube 7 with secondary settling tank 4;Secondary settling tank 4 passes through sludge reflux pump 22 and 6 phase of the first connecting tube Connection;Nitrification liquid reflux pump connects last lattice aerobic tank 11 and first anoxic pond 10.
The working principle of this dephosphorization denitrogenation device are as follows: municipal sewage, trade effluent, livestock and poultry cultivation sewage or landfill leachate The anaerobic pond 9 for entering moving bed biological reaction tank 3 together with 4 returned sludge of secondary settling tank carries out short-cut denitrification, Anammox With anaerobic phosphorus release;Then enter anoxic zone together with reflux nitrification liquid, short-cut denitrification, Anammox and denitrification occurs and removes Phosphorus;Aerobic nitrification effect occurs subsequently into aerobic tank 11, to achieve the purpose that remove nitrogen from sewage, mixing sludge is most Enter secondary settling tank 4 afterwards and carry out mud-water separation, supernatant is arranged as system Chinese effluent, partly precipitated sludge as excess sludge It puts, the anaerobic pond 9 of partly precipitated sludge reflux to reactor front end.
Further to describe in detail, moving bed biological reaction tank 3 is made of several ponds, and first is anaerobic pond 9 from left to right, Second and third is anoxic pond 10, and remaining is aerobic tank 11, all has floating stuffing, Mei Gehao in anaerobic pond 9 and anoxic pond 10 Aeration head 12 and the air volume regulating valve being used in combination with aeration head 12 13 are provided in oxygen pond 11, the tail end of regulating valve is set It is equipped with gas flowmeter 14 and blower 15.
It further describes in detail, 5 one end of ejector is connected with anaerobic ammonia oxidizing bacteria biomass generator 1, the other end and movement Anaerobic pond 9 in bed biological reaction pool 3 is connected.
Several underwater impellers 16 are provided in each anaerobic pond 9 and anoxic pond 10, each propeller is set to water On the side wall in pond, the setting of impeller creates water flow for water circulation in pond, and for nitrification, denitrogenation and dephosphorization stage.
Further describe in detail, may be designed to I type or S type or baffling type according to water (flow) direction between pond, and each pond it Between pass through flowing hole connect.
It further describes in detail, is provided with intake pump in the first connecting tube 6 between collecting-tank 2 and moving bed biological reaction tank 3 17。
It further describes in detail, overflow valve 18 and blow-down pipe 19, the setting of overflow valve 18 and collecting-tank 2 is provided on collecting-tank 2 Upper end, the blow-down pipe 19 are located at the bottom of collecting-tank 2.
It further describes in detail, the last one aerobic tank 11 and first anoxic pond 10 are provided with reflux unit 20, reflux unit 20 be nitrification liquid reflux pump or reflux weir.
It further describes in detail, returned sludge valve 21 and and sludge is provided on the connecting line of triple valve 8 and the first connecting tube 6 Reflux pump 22, returned sludge valve 21 and sludge reflux pump 22 are mutually contacted, and returned sludge valve 21 is located at close to triple valve 8 one Side.
It further describes in detail, contacts and set between the aeration head 12 in each aerobic tank 11 and the air volume regulating valve 13 matched Set, between each air volume regulating valve 13 and close connection after again with 15 phase of blower contact.
The bottom end of secondary settling tank 4 is tapered, and the sedimentation effect of 4 bottom of secondary settling tank can be improved in the convergence bottom of taper, also has Conducive to the timely discharge of sediment.
As shown in Figure 1, each reactor is all made of PVC board is made, moving bed biological reaction tank effective volume is pilot system 500L is divided into 7 ponds, and test is using certain livestock and poultry cultivation sewage as raw water, and specific water quality is as follows: COD concentration is 4200mg/L, ammonia nitrogen concentration 1460mg/L, total phosphorus concentration 80mg/L.
Carrying out practically operation is as follows:
1) activation system: inoculation traditional wastewater treatment plant activated sludge is added to moving bed biological reaction tank, keeps sludge dense Degree is 3000mg/L;Inoculation has hung up properly the floating stuffing of Anammox biomembrane to the anaerobic pond of moving bed biological reaction tank And anoxic zone, packing volume ratio are 40%.
2) it is as follows that operation is adjusted when running:
2.1) after municipal sewage, trade effluent, livestock and poultry cultivation sewage or landfill leachate are mixed with secondary settling tank returned sludge Into the anaerobic pond of moving bed biological reaction tank, the denitrifying bacterium on the pond suspended filler biofilm carries out short-cut denitrification, will Nitrate-nitrogen reduction in returned sludge is nitrite nitrogen, and the anaerobic ammonia oxidizing bacteria on biomembrane is again by nitrite nitrogen and mineralized nitrogen For nitrogen, then anaerobic phosphorus release effect occurs for the polyP bacteria in floc sludge;The muddy water mixed solution and reflux nitrification liquid of anaerobic pond Enter anoxic zone together, denitrifying bacterium carries out short-cut denitrification on the pond suspended filler biofilm, by the nitre in the nitrification liquid that flows back State nitrogen is reduced to nitrite nitrogen, and then nitrite nitrogen and mineralized nitrogen are nitrogen by the anaerobic ammonia oxidizing bacteria in biomembrane;Finally Sewage enters aerobic tank, and ammonium oxidation remaining in sewage is nitre by the ammonia oxidation bacteria and nitrite oxidizing bacteria in floc sludge State nitrogen;
2.2) moving bed biological reaction tank aerobic tank return sludge ratio is 100%;By adjusting the discharge amount of excess sludge, The sludge age control for controlling floc sludge in reactor is 15 days;
2.3) by adjusting the open degree of air volume regulating valve, regulate and control the oxygenation capacity of aerobic tank, the dissolution of control aerobic tank front end Oxygen concentration is 0.5-1.0mg/L, and dissolved oxygen concentration is 0.3-0.6mg/L in the last one pond of aerobic tank;
2.4) hydraulic detention time of moving bed biological reaction tank is 2d, and wherein anaerobic HRT is 1d, anoxic Hydraulic detention time is 1d;
2.5) mixed liquid recycle ratio is 200%;When anoxic zone effluent nitrate-nitrogen or nitrite nitrogen are greater than 3mg/L, reduce Mixed liquid recycle ratio;When aerobic tank effluent nitrate-nitrogen concentration is greater than 200mg/L, mixed liquid recycle ratio is improved.
Test result shows: after stable, inlet COD concentration 4200mg/L, ammonia nitrogen concentration 1460g/L, total phosphorus is dense Degree is 80mg/L;Reinforced type mobile bed biofilm reactor effluent COD concentration is 860mg/L, ammonia nitrogen concentration 5mg/L, and total phosphorus is dense Degree is 4mg/L.
The application of moving bed biofilm reactor+anaerobic ammonia oxidizing bacteria bioreactor technology has prevented conventional process substantially The problem of sludge bulking occurred in technology, and realize the purpose for increasing digestion and extending sludge age.Moving-bed biofilm Reactor can realize that the growing space of anti-bacterial digestion and bacterial digestion is relatively independent, does not interact, dramatically substantially The living environment of both biological inoculums is optimized, two kinds of reactions exist simultaneously in moving bed biofilm reactor technique, make It is with powerful denitrogenation dephosphorizing ability.It is demonstrated experimentally that total tp removal rate improves 95%, ammonia nitrogen removal frank improves 96.5% Left and right.Sewage treating efficiency, impact resistance and place can be improved under the premise of not changing raw sewage processing system dischargeable capacity Manage depth.
Specific embodiment described herein is only an example for the spirit of the invention.The neck of technology belonging to the present invention The technical staff in domain can make various modifications or additions to the described embodiments or replace by a similar method In generation, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.
Although anaerobic ammonia oxidizing bacteria biomass generator 1, collecting-tank 2, moving bed biological reaction tank is used more herein 3, secondary settling tank 4, ejector 5, the first connecting tube 6, the second connecting tube 7, triple valve 8, anaerobic pond 9, anoxic pond 10, aerobic tank 11, Aeration head 12, air volume regulating valve 13, gas flowmeter 14, blower 15, underwater impeller 16, intake pump 17, overflow valve 18, emptying The terms such as pipe 19, reflux unit 20, returned sludge valve 21, sludge reflux pump 22, but the possibility using other terms is not precluded Property.The use of these items is only for be more convenient to describe and explain essence of the invention;It is construed as any one Additional limitation is disagreed with spirit of that invention.

Claims (10)

1. a kind of dephosphorization denitrogenation device, which is characterized in that including anaerobic ammonia oxidizing bacteria biomass generator (1), collecting-tank (2), move Dynamic bed biological reaction pool (3) and secondary settling tank (4), the anaerobic ammonia oxidizing bacteria biomass generator (1) are reacted with moving bed biological It is provided between pond (3) ejector (5), is connected with the first company between the collecting-tank (2) and moving bed biological reaction tank (3) It takes over (6), is connected with the second connecting tube (7) between the moving bed biological reaction tank (3) and secondary settling tank (4), described two is heavy The bottom end in pond (4) is provided with triple valve (8), and one end of the triple valve (8) is connected with the first connecting tube (6), the other end For spoil disposal.
2. a kind of dephosphorization denitrogenation device according to claim 1, which is characterized in that the moving bed biological reaction tank (3) it is made of several ponds, first is anaerobic pond (9) from left to right, second and third is anoxic pond (10), remaining to be Aerobic tank (11) all has floating stuffing in the anaerobic pond (9) and anoxic pond (10), in each aerobic tank (11) The air volume regulating valve (13) for being provided with photohead (12) and being used in combination with photohead (12), the tail end of the regulating valve Gas flowmeter (14) and blower (15) are provided with, the last one aerobic tank (11) and first anoxic pond (10) are provided with reflux Device (20), the reflux unit (20) are nitrification liquid reflux pump or reflux weir.
3. a kind of dephosphorization denitrogenation device according to claim 1, which is characterized in that described ejector (5) one end with detest Anaerobic ammonium oxidation bacterium biomass generator (1) is connected, and the other end is connected with the anaerobic pond (9) in moving bed biological reaction tank (3) It is logical.
4. a kind of dephosphorization denitrogenation device according to claim 2, which is characterized in that the anaerobic pond (9) and lack Several underwater impellers (16) are provided in oxygen pond (10), each underwater impeller (16) is set to the side in pond On wall.
5. a kind of dephosphorization denitrogenation device according to claim 1, which is characterized in that can be set between pond according to water (flow) direction I or S type or baffling type are counted into, and is connected between each pond by flowing hole.
6. a kind of dephosphorization denitrogenation device according to claim 1, which is characterized in that the collecting-tank (2) and moving bed It is provided with intake pump (17), is provided on the collecting-tank (2) excessive in the first connecting tube (6) between biological reaction pool (3) It flows valve (18) and blow-down pipe (19), the upper end of the overflow valve (18) setting and collecting-tank (2), the blow-down pipe (19) position In the bottom of collecting-tank (2).
7. a kind of dephosphorization denitrogenation device according to claim 1, which is characterized in that the triple valve (8) connects with first It takes on the connecting line of (6) and is provided with returned sludge valve (21) and sludge reflux pump (22), the returned sludge valve (21) It mutually contacts with sludge reflux pump (22), and returned sludge valve (21) is located at close to triple valve (8) side.
8. a kind of dephosphorization denitrogenation device according to claim 2, which is characterized in that the exposure in each aerobic tank (11) It contacts and is arranged between bare headed (12) and the air volume regulating valve (13) matched, between each air volume regulating valve (13) and close connection It mutually contacts with blower (15) again afterwards.
9. a kind of dephosphorization denitrogenation device according to claim 1, which is characterized in that the bottom end of the secondary settling tank (4) is in Taper.
10. a kind of dephosphorization denitrification method based on short-cut denitrification reaction, which comprises the following steps:
1) activation system: inoculation traditional wastewater treatment plant activated sludge is added to moving bed biological reaction tank, makes sludge concentration 1500-3000mg/L;Start anaerobic ammonia oxidizing bacteria biomass generator, endlessly conveys 2 × 10 to anaerobic pond6CFU/ml with On high concentration Anammox flora or inoculation hung up properly the floating stuffing of Anammox biomembrane to moving bed biological The anaerobic pond of reaction tank and anoxic zone, floating stuffing packing volume ratio are 15-40%;
2) runing adjustment:
2.1) sewage of municipal sewage, trade effluent, livestock and poultry cultivation sewage or landfill leachate is mixed with secondary settling tank returned sludge The anaerobic pond for entering moving bed biological reaction tank afterwards is generated highly concentrated using anaerobic ammonia oxidizing bacteria biomass generator submerged fermentation The denitrifying bacterium spent on Anammox flora or anaerobic pond suspended filler biofilm carries out short-cut denitrification, will be in returned sludge Nitrate-nitrogen reduction be nitrite nitrogen, nitrite nitrogen and mineralized nitrogen are again nitrogen by the anaerobic ammonia oxidizing bacteria on biomembrane, and Anaerobic phosphorus release effect occurs for the polyP bacteria in floc sludge afterwards;The muddy water mixed solution and reflux nitrification liquid of anaerobic pond enter together to be lacked Oxygen area, denitrifying bacterium carries out short-cut denitrification on the pond suspended filler biofilm, is by the nitrate-nitrogen reduction in the nitrification liquid that flows back Nitrite nitrogen, then nitrite nitrogen and mineralized nitrogen are nitrogen by the anaerobic ammonia oxidizing bacteria in biomembrane;Last sewage enters Ammonium oxidation remaining in sewage is nitrate nitrogen by oxygen pond, ammonia oxidation bacteria and nitrite oxidizing bacteria in floc sludge;
2.2) moving bed biological reaction tank aerobic tank return sludge ratio is 50-200%;By adjusting the discharge amount of excess sludge, The sludge age control for controlling floc sludge in reactor is 15-20 days;
2.3) by adjusting the open degree of air volume regulating valve, regulate and control the oxygenation capacity of aerobic tank, control aerobic tank front end dissolved oxygen is dense Degree is 0.5-1.5mg/L, and dissolved oxygen concentration is 0.3-0.6mg/L in the last one pond of aerobic tank;
2.4) the municipal sewage hydraulic detention time of moving bed biological reaction tank is 8-14h, and trade effluent hydraulic detention time is 10h-2d, livestock and poultry cultivation sewage hydraulic detention time are 1-2d, and landfill leachate sewage hydraulic detention time is 1-3d.Wherein city City's anerobic sowage hydraulic detention time is 1.5-3h, and anoxic hydraulic detention time is 3-6h;When trade effluent anaerobism hydraulic retention Between be 6-24h, anoxic hydraulic detention time be 10h-1.2d;Livestock and poultry cultivation anerobic sowage hydraulic detention time is 10h-1d, is lacked Oxygen hydraulic detention time is 15h-1d;Landfill leachate anerobic sowage hydraulic detention time is 10h-1d, when anoxic hydraulic retention Between be 1-2d;
2.5) mixed liquid recycle ratio is 100-200%;When anoxic zone effluent nitrate-nitrogen or nitrite nitrogen are greater than 3mg/L, reduce Mixed liquid recycle ratio;When aerobic tank effluent nitrate-nitrogen concentration is greater than 10mg/L, mixed liquid recycle ratio is improved.
CN201811390792.2A 2018-11-21 2018-11-21 A kind of dephosphorization denitrogenation devices and methods therefor based on short-cut denitrification reaction Pending CN109368928A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811390792.2A CN109368928A (en) 2018-11-21 2018-11-21 A kind of dephosphorization denitrogenation devices and methods therefor based on short-cut denitrification reaction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811390792.2A CN109368928A (en) 2018-11-21 2018-11-21 A kind of dephosphorization denitrogenation devices and methods therefor based on short-cut denitrification reaction

Publications (1)

Publication Number Publication Date
CN109368928A true CN109368928A (en) 2019-02-22

Family

ID=65376632

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811390792.2A Pending CN109368928A (en) 2018-11-21 2018-11-21 A kind of dephosphorization denitrogenation devices and methods therefor based on short-cut denitrification reaction

Country Status (1)

Country Link
CN (1) CN109368928A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109761454A (en) * 2019-03-20 2019-05-17 哈尔滨工业大学(威海) A method of advanced nitrogen is realized by denitrifying ammoxidation MBBR technique
CN110357271A (en) * 2019-06-27 2019-10-22 杭州秀川科技有限公司 A kind of landfill leachate bio-chemical effluent quick bio denitrogenation method
CN110902819A (en) * 2019-11-29 2020-03-24 桂林电子科技大学 Circulating type short-cut denitrification reactor and system for high-ammonia-nitrogen-concentration wastewater
CN111302491A (en) * 2020-02-27 2020-06-19 江西省科学院 Biogas slurry deep purification system based on SHARON-SBBR-improved ecological floating bed combined process
CN113173641A (en) * 2021-04-06 2021-07-27 江苏裕隆环保有限公司 Deep denitrification process for realizing full-flow anaerobic ammonia oxidation based on side enrichment
CN114477455A (en) * 2022-03-14 2022-05-13 郑州大学 Low-carbon and high-efficiency method for deep nitrogen and phosphorus removal of municipal sewage

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201305508Y (en) * 2008-10-07 2009-09-09 浙江大学 Strain fed-batch type anaerobic ammonia oxidation device
CN102249481A (en) * 2011-05-16 2011-11-23 浙江汉蓝环境科技有限公司 Method for treating total nitrogen in coal chemical wastewater by using microbes
CN102964035A (en) * 2012-12-06 2013-03-13 北京城市排水集团有限责任公司 Device for autotrophic nitrogen removal of composite biological membrane and operation method
CN104108834A (en) * 2014-07-15 2014-10-22 中国人民大学 Method for carrying out nitrogen and phosphorus removal on municipal sewage
CN104556376A (en) * 2014-11-29 2015-04-29 北京工业大学 Autotrophic nitrogen removal method for biological phosphorus removal of urban sewage based on short-cut denitrification for providing nitrite
CN108862840A (en) * 2018-06-29 2018-11-23 襄阳先创环保科技有限公司 A kind of modified form A2The sewage disposal system of O technique

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201305508Y (en) * 2008-10-07 2009-09-09 浙江大学 Strain fed-batch type anaerobic ammonia oxidation device
CN102249481A (en) * 2011-05-16 2011-11-23 浙江汉蓝环境科技有限公司 Method for treating total nitrogen in coal chemical wastewater by using microbes
CN102964035A (en) * 2012-12-06 2013-03-13 北京城市排水集团有限责任公司 Device for autotrophic nitrogen removal of composite biological membrane and operation method
CN104108834A (en) * 2014-07-15 2014-10-22 中国人民大学 Method for carrying out nitrogen and phosphorus removal on municipal sewage
CN104556376A (en) * 2014-11-29 2015-04-29 北京工业大学 Autotrophic nitrogen removal method for biological phosphorus removal of urban sewage based on short-cut denitrification for providing nitrite
CN108862840A (en) * 2018-06-29 2018-11-23 襄阳先创环保科技有限公司 A kind of modified form A2The sewage disposal system of O technique

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109761454A (en) * 2019-03-20 2019-05-17 哈尔滨工业大学(威海) A method of advanced nitrogen is realized by denitrifying ammoxidation MBBR technique
CN110357271A (en) * 2019-06-27 2019-10-22 杭州秀川科技有限公司 A kind of landfill leachate bio-chemical effluent quick bio denitrogenation method
CN110902819A (en) * 2019-11-29 2020-03-24 桂林电子科技大学 Circulating type short-cut denitrification reactor and system for high-ammonia-nitrogen-concentration wastewater
CN111302491A (en) * 2020-02-27 2020-06-19 江西省科学院 Biogas slurry deep purification system based on SHARON-SBBR-improved ecological floating bed combined process
CN111302491B (en) * 2020-02-27 2020-11-06 江西省科学院 Biogas slurry deep purification system based on SHARON-SBBR-improved ecological floating bed combined process
CN113173641A (en) * 2021-04-06 2021-07-27 江苏裕隆环保有限公司 Deep denitrification process for realizing full-flow anaerobic ammonia oxidation based on side enrichment
CN114477455A (en) * 2022-03-14 2022-05-13 郑州大学 Low-carbon and high-efficiency method for deep nitrogen and phosphorus removal of municipal sewage

Similar Documents

Publication Publication Date Title
CN104556376B (en) The municipal sewage biological phosphate-eliminating autotrophic denitrification method of nitrite is provided based on short-cut denitrification
CN109368928A (en) A kind of dephosphorization denitrogenation devices and methods therefor based on short-cut denitrification reaction
CN105836885B (en) A kind of method of low carbon source urban sewage advanced nitrogen
CN108439599B (en) Device and method for deep nitrogen and phosphorus removal by coupling endogenous short-cut denitrification with ANAMMOX of municipal domestic sewage
US20030038080A1 (en) Method and system for sustainable treatment of municipal and industrial waste water
CN101525207A (en) Integrated pre-denitrification and denitrogenation biological filter sewerage treatment process
CN103880248A (en) Coking wastewater treatment system and treatment method
CN108862582A (en) One kind being based on part Anammox biomembrane A2The method of the bis- sludge system denitrogenation dephosphorizings of/O-IFAS-MBR
CN110143725A (en) Mixing sludge fermentation liquid is that carbon source continuous flow short-cut denitrification couples anaerobic ammonia oxidation process Treating Municipal Sewage device and method
CN106277319B (en) A kind of Bardenpho denitrification dephosphorization technique based on MBBR
CN109264864A (en) A kind of " main-auxiliary " activated sludge process coupling deodorization and intensified denitrification and dephosphorization
CN108328871A (en) Landfill leachate efficient denitrification system and its denitrification process
CN109160670A (en) It is a kind of based on short-cut denitrification+Anammox municipal sewage denitrification filter pool denitrogenation method
CN109607955A (en) A kind of water quantity regulation synchronization autotrophic denitrification method
CN110255714A (en) A kind of low carbon source urban sewage processing system and method
CN103011515A (en) Soybean wastewater biochemical treatment process and device
CN106430575B (en) A kind of method that oxidation ditch step feed technology realizes short-cut nitrification and denitrification denitrogenation
CN104591392A (en) Slow-released carbon source biochemical-denitrifying treatment device for swine wastewater with high ammonia nitrogen and low carbon nitrogen ratio as well as method for treating swine wastewater
CN105084536A (en) Biologically enhanced treatment method for medium-and-low concentration ammonia-nitrogen wastewater
CN110015818A (en) Continuous flow dephosphorization nitrosation couples Anammox denitrogenation dephosphorizing SBR technique
CN109607786A (en) A kind of combined anaerobic ammoxidation-anaerobism-membrane bioreactor sewage-treatment plant and method
CN109205954A (en) Light electrolysis catalysis oxidation, biochemical treatment high-concentration waste hydraulic art
CN112850894B (en) Device and method for advanced denitrification of industrial wastewater through anaerobic ammonia oxidation
CN103030250A (en) Reinforced-denitrification MBR (membrane bioreactor) sewage treatment method
CN106045030B (en) A2The apparatus and method of/O-UASB continuous flow city domestic sewage advanced nitrogen dephosphorization

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination