CN103663725A - Continuous flow biological denitrification method based on granular sludge, and apparatus - Google Patents
Continuous flow biological denitrification method based on granular sludge, and apparatus Download PDFInfo
- Publication number
- CN103663725A CN103663725A CN201310652786.0A CN201310652786A CN103663725A CN 103663725 A CN103663725 A CN 103663725A CN 201310652786 A CN201310652786 A CN 201310652786A CN 103663725 A CN103663725 A CN 103663725A
- Authority
- CN
- China
- Prior art keywords
- sludge
- bioreactor
- water
- reactor
- water inlet
- 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.)
- Granted
Links
- 239000010802 sludge Substances 0.000 title claims abstract description 174
- 238000000034 method Methods 0.000 title claims abstract description 59
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 98
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 claims abstract description 48
- 238000005273 aeration Methods 0.000 claims abstract description 30
- 239000002351 wastewater Substances 0.000 claims abstract description 15
- 230000012010 growth Effects 0.000 claims abstract description 9
- 238000012856 packing Methods 0.000 claims abstract description 8
- 238000006243 chemical reaction Methods 0.000 claims abstract description 6
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 5
- 238000004062 sedimentation Methods 0.000 claims abstract 10
- 230000006978 adaptation Effects 0.000 claims abstract 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 68
- 230000008569 process Effects 0.000 claims description 42
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 40
- 239000001301 oxygen Substances 0.000 claims description 40
- 229910052760 oxygen Inorganic materials 0.000 claims description 40
- 229910052757 nitrogen Inorganic materials 0.000 claims description 34
- 239000000945 filler Substances 0.000 claims description 21
- 238000010992 reflux Methods 0.000 claims description 20
- 239000011259 mixed solution Substances 0.000 claims description 19
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 claims description 18
- 239000002245 particle Substances 0.000 claims description 18
- 239000007788 liquid Substances 0.000 claims description 13
- 239000007789 gas Substances 0.000 claims description 11
- 239000010865 sewage Substances 0.000 claims description 11
- 238000003756 stirring Methods 0.000 claims description 9
- 238000000926 separation method Methods 0.000 claims description 8
- 238000011081 inoculation Methods 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 6
- 230000001651 autotrophic effect Effects 0.000 claims description 5
- 239000006228 supernatant Substances 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 3
- 230000018044 dehydration Effects 0.000 claims description 2
- 238000006297 dehydration reaction Methods 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 229920002635 polyurethane Polymers 0.000 claims 8
- 239000004814 polyurethane Substances 0.000 claims 8
- 230000000717 retained effect Effects 0.000 claims 3
- 238000013019 agitation Methods 0.000 claims 1
- 238000004090 dissolution Methods 0.000 claims 1
- 239000008187 granular material Substances 0.000 description 36
- 230000003647 oxidation Effects 0.000 description 24
- 238000007254 oxidation reaction Methods 0.000 description 24
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 22
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 17
- 241001453382 Nitrosomonadales Species 0.000 description 17
- 241000894006 Bacteria Species 0.000 description 15
- 238000005516 engineering process Methods 0.000 description 15
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 13
- 229910021529 ammonia Inorganic materials 0.000 description 11
- 230000000813 microbial effect Effects 0.000 description 11
- 230000000694 effects Effects 0.000 description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 7
- 229910052799 carbon Inorganic materials 0.000 description 7
- 239000004744 fabric Substances 0.000 description 7
- 238000012544 monitoring process Methods 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 230000001276 controlling effect Effects 0.000 description 5
- 238000011049 filling Methods 0.000 description 4
- 238000001914 filtration Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000006396 nitration reaction Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- 238000004065 wastewater treatment Methods 0.000 description 3
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical compound [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 2
- IOVCWXUNBOPUCH-UHFFFAOYSA-N Nitrous acid Chemical compound ON=O IOVCWXUNBOPUCH-UHFFFAOYSA-N 0.000 description 2
- 240000004808 Saccharomyces cerevisiae Species 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 2
- -1 agitator motor Substances 0.000 description 2
- 238000009395 breeding Methods 0.000 description 2
- 230000001488 breeding effect Effects 0.000 description 2
- 230000002354 daily effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 230000003203 everyday effect Effects 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 230000035800 maturation Effects 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- PDNNQADNLPRFPG-UHFFFAOYSA-N N.[O] Chemical compound N.[O] PDNNQADNLPRFPG-UHFFFAOYSA-N 0.000 description 1
- 241000589516 Pseudomonas Species 0.000 description 1
- MMDJDBSEMBIJBB-UHFFFAOYSA-N [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] Chemical compound [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] MMDJDBSEMBIJBB-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000003851 biochemical process Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 230000001546 nitrifying effect Effects 0.000 description 1
- 239000001272 nitrous oxide Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 230000037361 pathway Effects 0.000 description 1
- 238000011112 process operation Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 230000001932 seasonal effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 238000009280 upflow anaerobic sludge blanket technology Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- Y02W10/12—
Landscapes
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
本发明公开了基于颗粒污泥的连续流短程硝化-厌氧氨氧化生物脱氮方法及装置，方法包括：1)接种污泥培养，进行活性污泥适应期；2)启动短程硝化-厌氧氨氧化反应；3）厌氧氨氧化颗粒污泥形成和生长期；4）颗粒污泥连续流系统稳定运行期。装置包括设有依序连通的进水水箱、生物反应器、沉淀池和水力筛过滤器；进水水箱进水连通高氨氮废水，出水连通生物反应器；沉淀池底部浓缩污泥经污泥回流泵与生物反应器连通；缺氧反应器内设有固定填料、搅拌器、过滤筛网和与空气压缩机连通的曝气头；沉淀池设有清水溢流口通过管道与水力筛过滤器联通；水力筛过滤器的出水为最终出水，截留的颗粒污泥回流至生物反应器。
The invention discloses a continuous-flow short-path nitrification-anammox biological denitrification method and device based on granular sludge. The method includes: 1) inoculating sludge for cultivation, and performing an adaptation period of activated sludge; 2) starting short-path nitrification-anaerobic Ammoxidation reaction; 3) Anammox granular sludge formation and growth period; 4) Granular sludge continuous flow system stable operation period. The device includes a water inlet tank, a bioreactor, a sedimentation tank and a hydraulic screen filter connected in sequence; the water inlet of the water tank is connected to high ammonia nitrogen wastewater, and the outlet water is connected to the bioreactor; the concentrated sludge at the bottom of the sedimentation tank is refluxed through the sludge The pump is connected with the bioreactor; the anoxic reactor is equipped with fixed packing, agitator, filter screen and aeration head connected with the air compressor; the sedimentation tank is provided with a clear water overflow port and communicated with the hydraulic screen filter through the pipeline ; The effluent of the hydraulic sieve filter is the final effluent, and the intercepted granular sludge is returned to the bioreactor.
Description
Technical field
The invention belongs to biochemical process technical field of sewage, specifically a kind of method and apparatus that utilizes the whole process autotrophic denitrification technical finesse high ammonia-nitrogen wastewater that granule sludge is main body.This installs fixedly filler is that carrier forms anaerobic ammonia oxidizing bacteria microbial film, by biofilm development, maturation with come off, forms gradually anaerobic ammonia oxidizing bacteria granule sludge; Finally take granule sludge as main body, by the synergy of ammonia oxidation bacteria and anaerobic ammonia oxidizing bacteria, realize economical and efficient ground denitrogenation.This technique is applicable to municipal sewage plant's high ammonia nitrogen digested sludge dehydration liquid and processes, and is also applicable to the Industrial Wastewater Treatment of high ammonia nitrogen, low ratio of carbon to ammonium.
Background technology
The removal of nitrogen pollutant has become the key issue of sewage disposal and regeneration.In " 15 " later stage, ammonia nitrogen remains basically stable on the impact of water quality and permanganate index, and Eleventh Five-Year Plan the first two years ammonia nitrogen has become the primary index that affects surface water quality.During " 12 ", ammonia nitrogen is included into the restrictive index of controlling of the main Sewage Water Emissions in the whole nation.China is about ammonia nitrogen emission standard also increasingly stringent.As newly-increased the binding indicator, system and measure that ammonia nitrogen reduces discharging all need to explore in practice.By sewage work's upgrading, improve life source ammonia nitrogen removal efficiency, catch the key industrys such as chemical industry, food-processing simultaneously, can effectively control ammonia nitrogen total emission volumn, improve largely the current Water quality ammonia nitrogen phenomenon that exceeds standard, and alleviate the load of storehouse, lake ammonia nitrogen and total nitrogen.
In China's sewage still there is many difficult problems in the control of nitrogen pollutant at present.Due to factors such as amount of inlet water changes greatly, trade effluent impact, water inlet solid suspension substrate concentration height, wastewater treatment in China technique ammonia nitrogen removal effect is lower, is subject to seasonal effect obvious.Traditional nitrated-denitrification process of the general employing of bio-denitrification technology, is oxidized to nitric nitrogen by nitrifier by ammonia nitrogen, and then denitrifying bacteria utilizes organism that nitrate-nitrogen reduction is become to nitrogen.And organism in water inlet is when lack, traditional technology has been difficult to good anti-nitration reaction, causes total nitrogen to be removed being difficult to up to standard.
Tradition denitrification process complicated operation, running cost is higher.For the problem existing in traditional denitrification process, scientific research personnel develops the biological denitrification process of various new, to improving the efficiency of biological denitrificaion, reduces its running cost.Anaerobic ammonium oxidation technology for biological denitrification is one of numerous new technologies, is subject in recent years researcher and sewage treatment process developer's extensive attention.This technology utilizes the special pathways metabolism of anaerobic ammonia oxidizing bacteria to complete biological denitrificaion, this bacterium can utilize nitrite directly ammonia nitrogen to be oxidized to nitrogen as electron donor, so in the approach removed at nitrogen of anaerobic ammonia oxidation process and traditional biological denitrification process and principle, has significantly different.Anaerobic ammonia oxidizing bacteria is chemoautotrophic bacteria, usings inorganic carbon as carbon source, thus in denitrification process without organic carbon source; Nitrifying process only need be oxidizing to nitrite by 50% ammonia nitrogen, and oxygen requirement and oxygen supply energy consumption decline to a great extent; The nitric efficiency of Anammox and removal load are higher, and excess sludge production is few simultaneously.Anammox technology is applied to, in high ammonia-nitrogen wastewater processing, can save working cost, produces significant economic benefit.Anaerobic ammonia oxidation process is compared the discharge that can reduce greenhouse gases Nitrous Oxide with traditional technology simultaneously, and environmental benefit is obvious.
Anammox technology is compared and is had obvious advantage with traditional denitrification process, is the bio-denitrification technology of Sustainable development, has extensive and good prospect.But anaerobic ammonia oxidizing bacteria belongs to autotrophic bacteria, cell yield is low, is not easy enrichment at short notice.And anaerobic ammonia oxidizing bacteria is realized biological denitrificaion and need to have been worked in coordination with ammonia oxidation bacteria.And the ammonia oxidation bacteria multiplication rate existing in same system is fast, cause the growth of anaerobic ammonia oxidizing bacteria to be affected, be difficult to realize coupling and the balance of two kinds of bacteriums.In addition, the flco mud in reactor easily runs off, and causes the smooth enrichment of anaerobic ammonia oxidizing bacteria more difficult.For shortening the start time of anaerobic ammonia oxidation process, need the mud of enhanced reactor to hold the ability of staying, to promote the fast enriching of anaerobism ammonia oxygen bacterium.By reactor types reasonable in design and adjust operation condition, the granulating that realizes Anammox mud is to solve Anammox to be difficult to one of method of enrichment.
At present, still there is some technical problem in anaerobic ammonium oxidation granular sludge technique, affects startup and the steady running of anaerobic ammonia oxidation process, comprising: 1. the mechanism of Granular sludge formation is still indefinite, do not inoculating under the condition of ripe anaerobic ammonium oxidation granular sludge, the time that system starts is longer; 2. current anaerobic ammonium oxidation granular sludge is mainly achieved in UASB reactor or sbr reactor device, still less application in the reactor of Continuous Flow; 3. current anaerobic ammonium oxidation granular sludge system, is still having difficulty aspect dissolved oxygen control, generally needs intermittent aeration to maintain lower dissolved oxygen concentration, has increased the complexity of system operation.And relevant anaerobic ammonium oxidation granular sludge patented technology still lacks report, especially in plug flow reactor, form the patented technology of anaerobic ammonium oxidation granular sludge.To sum up, propose a kind of novel anaerobic ammonium oxidation granular sludge that utilizes herein and process the apparatus and method of high ammonia-nitrogen wastewater, this system can form granule sludge fast, the complexity of reduction system running maintenance, by automatic control system, coordinate the mutual ratio of different strain, thereby realize efficient denitrification and the steady running of system.
Summary of the invention
The present invention, in order to solve the problems of the technologies described above, proposes a kind of Continuous Flow short distance nitration-anaerobic ammoxidation biological denitrification method and device based on anaerobic ammonium oxidation granular sludge.The present invention applies fixedly filler as seed sludge, by the formation of biomembranous growth, maturation and the accelerating system endoparticle mud that comes off; By filter screen and hydraulic screen strainer are set, improve bio-reactor holding of granule sludge stayed to ability; Thereby effectively hold, stay enrichment anaerobic ammonia oxidizing bacteria, increase the concentration of functional microorganism in aeration tank.In bio-reactor of the present invention, there are two kinds of mud forms of suspended sludge and granule sludge simultaneously, can form different superiority bacteria spps, thereby the advantage of activated sludge process and biomembrance process is organically combined, can significantly improve processing power and the operation stability of system.The suitable growth environment that the microorganism that the present invention is difference in functionality by rational structure of reactor and hydraulic flow state provides, realizes the quick startup of anaerobic ammonia oxidation process; On-line Control by dissolved oxygen, sludge reflux, stirring intensity is real, improves the nitric efficiency of system and the stability of technique.
Technical scheme provided by the invention is:
The operation method of Continuous Flow granule sludge short distance nitration-anaerobic ammoxidation biological denitrification apparatus, comprises the following steps:
1) seed sludge is cultivated: seed sludge comprises active sludge and two parts of microbial film.Microbial film seeded process is as follows, by urethane fixedly filler be first immersed in the short distance nitration-anaerobic ammoxidation system of steady running, in the abundant adsorption system of band urethane filler after active sludge, by its transfer and be fixed on bio-reactor; Active sludge seeded process is as follows, from sewage work's returned sluge pipeline, gets active sludge intermixture, is directly injected into bio-reactor, and makes activated sludge concentration in bio-reactor reach 3000-5000mg/L; After seed sludge process completes, pending high ammonia-nitrogen wastewater is passed into water tank inlet, open intake pump, make the high ammonia-nitrogen wastewater in water tank inlet enter bio-reactor, start aerating system and the stirring system of aerobic reactor, the nitration reaction of ammonia nitrogen starts to carry out, and the dissolved oxygen of Controlling System is at 0.5mg/L, and the ammonia nitrogen in sludge liquor starts to remove; As the ammonia nitrogen removal load arrival 0.1kg/ of whole device (m
3d), ammonia nitrogen removal frank is greater than 90%, and nitrogen removal rate is greater than 50%, when the ratio that the nitrite concentration in water outlet accounts for total nitrogen is greater than 85%, confirms that the active sludge adaptive phase finishes, and carries out next step;
2) start short distance nitration-anaerobic ammoxidation reaction: be held open intake pump, from water tank inlet, intake to bio-reactor continuously; Be held open aerating system, by the control of online dissolved oxygen detection system and corresponding aerating pipelines air flow quantity, keeping the basicly stable of dissolved oxygen is 0.2-0.3mg/L simultaneously, and return sludge ratio is made as 50%-100%; By controlling the intensity of aeration and stirring, guarantee that suspended sludge fully mixes in anoxic, aerobic reactor zone, there is not short stream or dead band; Ammonia nitrogen concentration in the water outlet of monitoring settling tank clean water overflow mouth, when going out water concentration lower than 50mg/L, improves the flooding quantity of bio-reactor, and adjusts the stirring intensity of aerating system aeration intensity and adjustment agitator, to guarantee that in each reactor, muddy water fully mixes; In improving the process of amount of inlet water, the variation of monitoring water outlet nitrite concentration, when nitrous acid concentration is higher than 1mg/L in water outlet, keeps amount of inlet water constant, and suitably reduce the dissolved oxygen concentration of system, guarantee that the nitrite concentration of system water outlet is lower than 1mg/L.Move under these conditions, improve gradually the flooding quantity of reactor, when the total nitrogen of reactor, remove load and reach 0.8kg/ (m
3d), nitrogen removal rate surpasses 75%, when urethane fixedly grows the red microbial film over 1mm thickness on filler simultaneously, determines that short distance nitration-anaerobic ammoxidation process starts end, enters next step;
3) anaerobic ammonium oxidation granular sludge forms and vegetative period: by adjusting the valve of aerating pipelines, improve the aeration rate of system, the dissolved oxygen concentration of this stage bio-reactor maintains 0.5-0.8mg/L; By the aeration rate of fixing filler bottom is increased, improve the hydraulic shear of filling surface, the particulate state redness microbial film that fixedly filling surface forms is eluted to reactor.The filter screen overflow that mixed solution is 0.5mm through eye diameter enters settling tank, and the granule sludge that particle diameter is greater than 0.5mm can be trapped within reactor.The every daily water outlet of filter screen is cleaned once, avoids stopping up, and affects the normal operation of system.Open hydraulic screen strainer, screen cloth particle diameter is selected 0.18mm, and the mud that the particle diameter containing in water outlet surpasses 0.18mm can be trapped, and by sludge reflux system, reenters the front end of bio-reactor.Adjust the amount of excess sludge discharge every day at the 10%-15% of system sludge total amount; System spoil disposal process is as follows, closes flowing water Valve, opens mixed solution spoil disposal valve, and mixed solution enters into hydraulic screen strainer, and the particle of holding back is back to bio-reactor by sludge reflux system, and the mixed solution not being trapped directly discharges as excess sludge.
4) granule sludge continuous-flow system steady operation period; Keeping system is normally moved, and when the quality of granule sludge accounts for the total sludge quality of system and surpasses 50%, using urethane, fixedly filler taking-up is standby as the seed sludge of other reactor start-ups, and native system be take granule sludge and completed whole process autotrophic denitrification as main body.Nitrite concentration in the water outlet of periodic monitoring settling tank, suitably the dissolved oxygen concentration of adjustment System, guarantees that the total nitrogen of design is removed load and nitrogen removal rate, system debug finishes, and enters into the error-free running period.
Operation process principle of the present invention: first urethane filler is immersed in the short distance nitration-anaerobic ammoxidation reactor of steady running, utilizes the feature absorbed portion anaerobic ammoxidation activity mud that urethane packing specific area is large.Urethane filler is fixed on after bio-reactor, by regulating aeration intensity and amount of inlet water to maintain dissolved oxygen at 0.2-0.3mg/L.Under this operational conditions, ripe anaerobic ammonia oxidizing bacteria microbial film can be bred and form to anaerobic ammonia oxidizing bacteria gradually.Microbial film forms granular projection after further breeding on surface.These projections come off and enter in reactor under the effect of aeration and hydraulic shear, exist, thereby increased the abundance of anaerobic ammonia oxidizing bacteria in system with the form of granule sludge, have further improved the nitric efficiency of system.
Reactor evenly mixes suspension active sludge, granule sludge in water inlet, returned sluge and reactor.Air compressor is bio-reactor aeration.Under the ammonia oxidation bacteria effect of intrasystem ammonia nitrogen in suspended sludge, be oxidized to nitrite, the anaerobic ammonia oxidizing bacteria of granule sludge enrichment utilizes remaining ammonia nitrogen that nitrite is reduced into nitrogen, thereby realizes denitrogenation.The dissolved oxygen of bio-reactor is monitored by dissolved oxygen monitor, and by regulating aerating pipelines upper rotor part under meter to maintain the suitable concentration of dissolved oxygen, the system of assurance has enough nitrite as the matrix of Anammox growth, does not produce accumulation simultaneously.
The mud mixture of aerobic reactor enters into settling tank through the screen cloth in 0.5mm aperture, and the particle that particle diameter is greater than 0.5mm can be trapped within bio-reactor.Settling tank carries out mud-water separation by action of gravity, and supernatant liquor enters into hydraulic screen strainer, and sludge settling, at the sludge bucket of bottom, is promoted to bio-reactor through sludge reflux pump.0.18mm is selected in the aperture of hydraulic screen strainer, and the particle that particle diameter is greater than 0.18mm is trapped and is again back to bio-reactor, and after filter water as final outflow water.Excess sludge discharge also completes by hydraulic screen strainer, and mixed solution is directly entered into hydraulic screen strainer, and the granule sludge of holding back is back to bio-reactor, and particle diameter is less than the mixed solution of 0.18mm as excess sludge discharge.
Based on aforementioned process operation principle and concrete grammar, the invention provides the Continuous Flow short distance nitration-anaerobic ammoxidation biological denitrification apparatus based on granule sludge, specifically comprise:
Be provided be sequentially communicated with in order to store water tank inlet, bio-reactor, settling tank and the hydraulic screen strainer of high ammonia nitrogen, low ratio of carbon to ammonium waste water; Pending high ammonia-nitrogen wastewater is connected with described water tank inlet by water-in, and the water outlet of water tank inlet is communicated with the water-in of bio-reactor by intake pump; The mixed solution of bio-reactor is screen cloth, overflow weir after filtration successively, by pipeline and valve, is communicated with the central tube of settling tank; Settling tank completes after mud-water separation, and bottom thickened sludge is communicated with bio-reactor top through sludge reflux pipeline by sludge reflux pump, and supernatant liquor is connected with hydraulic screen strainer by pipeline through the clean water overflow mouth on settling tank top; After hydraulic screen strainer secondary solid-liquid separation, after filter, water discharges as final outflow water, and the mud of holding back is back to bio-reactor through sludge reflux pump.Bio-reactor is provided with shore pipe and valve, and shore pipe is connected with hydraulic screen strainer.During system spoil disposal, mixed solution enters hydraulic screen strainer, and the solid of holding back is back to bio-reactor by sludge reflux system, and the mixed solution after filtration is as excess sludge discharge.In the front end of bio-reactor, be provided with fixedly filler of board-like urethane, rear end is provided with agitator under dissolved oxygen monitor and liquid; The bottom of bio-reactor is provided with aeration head, and aeration head is communicated with air compressor, and the aerating pipelines of air compressor is provided with gas meter.
The additional project of further improving and implementing is:
Gas flow on described aerating pipelines is counted online gas meter, and the dissolved oxygen monitor of described reactor is online dissolved oxygen monitor; Under described intake pump and liquid, agitator motor, air compressor, sludge reflux pump are equipped with controllable frequency converter, and be provided with PLC controller, this PLC controller carries out signal with described online dissolved oxygen monitor and gas meter and is connected, and carries out control linkage with described intake pump and air compressor, sludge reflux pump, agitator motor.
Compare with the conventional prior aries such as Anammox denitrification treatment process with traditional high-ammonia-nitrogen sewage treatment process, tool of the present invention has the following advantages:
1) the present invention, by biomembranous inoculation and cultivation, can realize the quick startup of anaerobic ammonium oxidation granular sludge system.In native system, fixedly filler provides adapt circumstance for anaerobic ammonoxidation bacterium concentrating, avoid dissolved oxygen too high in the mud flco restraining effect to anaerobic ammonia oxidizing bacteria, so granule sludge can and come off gradually by the fast breeding of sludge organism film and stablizes formation.This kind of granule sludge granulation mode, does not need special hydraulics screening and flocculant concentration, has reduced the technical threshold of granule sludge start-up and operation;
2) the present invention provides suitable growth conditions for different function Pseudomonas.Utilize suspension active sludge for ammonia oxidation bacteria growth provides the sufficient suitable growth conditionss such as dissolved oxygen, can improve the ammoxidation activity of system; By the long sludge age of granule sludge, can realize the enrichment of anaerobic ammonia oxidizing bacteria, improve the anaerobic ammoxidation activity of system.The coexisting of flco mud and granule sludge in system, is conducive to two kinds of function yeast and gives full play to activity separately, improves the nitric efficiency of system finishing.
3) the present invention utilizes screen cloth and hydraulic screen strainer to realize function yeast selective enrichment, has improved the stability of system operation.During excess sludge discharge, hydraulic screen strainer can be realized the separation of the mud of different-grain diameter, thereby optionally will be rich in the small particle size mud discharging of ammonia oxidation bacteria, and granule sludge fully holds by screen cloth and hydraulic screen strainer and stay, be conducive to the raising of anaerobic ammoxidation activity.The selective discharge of mud is also conducive to the activity regulation of two kinds of function bacteriums of system, has reduced the complexity of system operation.
4) the present invention combines granule sludge with continuous flow reactor, has widened the range of application of granule sludge.In the reactor of Continuous Flow and pulling flow type, form steadily granule sludge, expanded the range of application of granule sludge, be conducive to applying of this technology.And this technology do not need fixedly filler of life-time service, can reduce the infrastructure investment of system.
Accompanying drawing explanation
Fig. 1 is the structural representation of apparatus of the present invention;
In Fig. 1: 1---water tank inlet; 2---intake pump; 3---bio-reactor; 4---settling tank; 5---hydraulic screen strainer; 6---filter screen; 7---overflow weir; 8---sludge reflux pump; 9---overflow port; 10---valve; 11---fixing filler; 12---dissolved oxygen monitor; 13---agitator; 14---air compressor; 15---gas meter;
Fig. 2 is the floor map of apparatus of the present invention.
Embodiment
Below in conjunction with drawings and embodiments, the present invention is described further: as shown in Figure 1, Continuous Flow short distance nitration-anaerobic ammoxidation biological denitrification apparatus based on granule sludge, be sequentially communicated with in order to store water tank inlet 1, bio-reactor 3, settling tank 4 and the hydraulic screen strainer 5 of high ammonia nitrogen, low ratio of carbon to ammonium waste water; Pending high ammonia-nitrogen wastewater is connected with water tank inlet 1 by water-in, and the water outlet of water tank inlet 1 is communicated with the water-in of bio-reactor 3 by intake pump 2; The mixed solution of bio-reactor 3 is screen cloth 6, overflow weir 7 after filtration successively, by pipeline and valve, is communicated with the central tube of settling tank 4; Settling tank 4 completes after mud-water separation, and bottom thickened sludge is communicated with bio-reactor 3 tops through sludge reflux pipeline by sludge reflux pump 8, and supernatant liquor is connected with hydraulic screen strainer 5 by pipeline through the clean water overflow mouth 9 on settling tank 4 tops; After 5 two solid-liquid separation of hydraulic screen strainer, after filter, water discharges as final outflow water, and the mud of holding back is back to bio-reactor 3 through sludge reflux pump 8.
Bio-reactor 3 is provided with shore pipe and valve 10, and shore pipe is connected with hydraulic screen strainer 5.During system spoil disposal, mixed solution enters into hydraulic screen strainer 5, and the solid of holding back is back to bio-reactor 3 by sludge reflux pipeline, and the mixed solution after filtration is as excess sludge discharge.
In the front end of bio-reactor 3, be provided with fixedly filler 11 of board-like urethane, rear end is provided with agitator 13 under online dissolved oxygen monitor 12 and liquid; The bottom of bio-reactor 3 is provided with aeration head, and aeration head is communicated with air compressor 14, and the aerating pipelines of air compressor is provided with online gas meter 15.Wherein, under intake pump 2 and liquid, agitator 13 motors, air compressor 14, sludge reflux pump 8 are equipped with controllable frequency converter, and be provided with PLC controller, this PLC controller carries out signal with online dissolved oxygen monitor 12 with gas meter 15 and is connected, and carries out control linkage with intake pump 2 and air compressor 14, sludge reflux pump 8, agitator 13 motors.
In conjunction with above-mentioned nitrogen rejection facility, the short distance nitration-anaerobic ammoxidation biological denitrification method based on mud granule Continuous Flow comprises the following steps:
1) seed sludge is cultivated: seed sludge comprises active sludge and two parts of microbial film.Microbial film seeded process is as follows, by urethane fixedly filler be first immersed in the short distance nitration-anaerobic ammoxidation system of steady running, in the abundant adsorption system of band urethane filler after active sludge, by its transfer and be fixed on bio-reactor; Active sludge seeded process is as follows, from sewage work's returned sluge pipeline, gets active sludge intermixture, is directly injected into bio-reactor, and makes activated sludge concentration in bio-reactor reach 3000-5000mg/L; After seed sludge process completes, pending high ammonia-nitrogen wastewater is passed into water tank inlet, open intake pump, make the high ammonia-nitrogen wastewater in water tank inlet enter bio-reactor, start aerating system and the stirring system of aerobic reactor, the nitration reaction of ammonia nitrogen starts to carry out, and the dissolved oxygen of Controlling System is at 0.5mg/L, and the ammonia nitrogen in sludge liquor starts to remove; As the ammonia nitrogen removal load arrival 0.1kg/ of whole device (m
3d), ammonia nitrogen removal frank is greater than 90%, and nitrogen removal rate is greater than 50%, when the ratio that the nitrite concentration in water outlet accounts for total nitrogen is greater than 85%, confirms that the active sludge adaptive phase finishes, and carries out next step;
2) start short distance nitration-anaerobic ammoxidation reaction: be held open intake pump, from water tank inlet, intake to bio-reactor continuously; Be held open aerating system, by the control of online dissolved oxygen detection system and corresponding aerating pipelines air flow quantity, keeping dissolved oxygen basicly stable is 0.2-0.3mg/L simultaneously, and return sludge ratio is made as 50%-100%; By controlling the intensity of aeration and stirring, guarantee that suspended sludge fully mixes in anoxic, aerobic reactor zone, there is not short stream and dead band; Ammonia nitrogen concentration in the water outlet of monitoring settling tank clean water overflow mouth, when going out water concentration lower than 50mg/L, improves the flooding quantity of bio-reactor, and adjusts the stirring intensity of aerating system aeration intensity and agitator, to guarantee that in each reactor, muddy water fully mixes; In improving the process of amount of inlet water, the variation of monitoring water outlet nitrite concentration, when nitrous acid concentration is higher than 1mg/L in water outlet, keeps amount of inlet water constant, and suitably reduce the dissolved oxygen concentration of system, guarantee that the nitrite concentration of system water outlet is lower than 1mg/L.Move under these conditions, the amount of inlet water of reactor is provided gradually, when the total nitrogen of reactor, remove load and reach 0.8kg/ (m
3d), nitrogen removal rate surpasses 75%, when urethane fixedly grows the red microbial film over 1mm thickness on filler simultaneously, determines that short distance nitration-anaerobic ammoxidation process starts end, enters next step;
3) anaerobic ammonium oxidation granular sludge forms and vegetative period: by adjusting the valve of aerating pipelines, improve the aeration rate of system, the dissolved oxygen concentration of this stage bio-reactor maintains 0.5-0.8mg/L; By the aeration rate of fixing filler bottom is increased, improve the hydraulic shear of filling surface, the particulate state redness microbial film that fixedly filling surface forms is eluted to reactor.The filter screen overflow that mixed solution is 0.5mm through eye diameter enters settling tank, and the granule sludge that particle diameter is greater than 0.5mm can be trapped within reactor.The every daily water outlet of filter screen is cleaned once, avoids stopping up, and affects the normal operation of system.Open hydraulic screen strainer, screen cloth particle diameter is selected 0.18mm, and the mud that the particle diameter containing in water outlet surpasses 0.18mm can be trapped, and by sludge reflux system, reenters the front end of bio-reactor.Adjustment excess sludge discharge amount every day is at the 10%-15% of system sludge total amount; System spoil disposal process is as follows, closes flowing water Valve, opens mixed solution spoil disposal valve, and mixed solution enters into hydraulic screen strainer, and the particle of holding back is back to bio-reactor by sludge reflux system, and the mixed solution not being trapped directly discharges as excess sludge.
4) granule sludge continuous-flow system steady operation period; Keeping system is normally moved, and when the quality of granule sludge accounts for system sludge total mass and surpasses 50%, using urethane, fixedly filler taking-up is standby as the seed sludge of other reactor start-ups, and native system be take granule sludge and completed whole process autotrophic denitrification as main body.Nitrite concentration in the water outlet of periodic monitoring settling tank, suitably the dissolved oxygen concentration of adjustment System, guarantees that the total nitrogen of design is removed load and nitrogen removal rate, system debug finishes, and enters into the error-free running period.
The nitrogen rejection facility based on granule sludge Continuous Flow of the present embodiment arranges in certain large-scale wastewater treatment plant, is connected with sludge liquor discharge tube between the sludge dewatering of original waste disposal plant; Useful volume is 10m
3, the water inlet of use is high ammonia nitrogen sludge liquor, influent ammonium concentration 410-450mg/L, total nitrogen 450-480mg/L, COD=200-240mg/L, pH=7.4-8.2; Before use, be stored in water tank inlet.
Run to the 4th) step, normal operation 3 months, test-results shows: the temperature of bio-reactor is 28-30 ℃, water inlet total nitrogen concentration is 450～480mg/L, hydraulic detention time 20h, the average solid retention time of suspended sludge 8 days, the average solid retention time of granule sludge 30 days, the quality of stable operation stage system endoparticle mud accounts for 50% of active sludge total mass, and in molecular biology identification proof granule sludge, anaerobic ammonia oxidizing bacteria obtains effective enrichment; The device of this embodiment is nitrated with tradition with technique-and denitrification process compares, and in the situation that not adding outer carbon source, nitrogen removal rate brings up to 90%, and total nitrogen is removed load and is reached 0.8kg/ (m
3d).And the startup of anaerobic ammonium oxidation granular sludge technique foreshortens to 3 months, be conducive to this technique applying in Practical Project.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310652786.0A CN103663725B (en) | 2013-12-05 | 2013-12-05 | Based on Continuous Flow biological denitrification method and the device of granule sludge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310652786.0A CN103663725B (en) | 2013-12-05 | 2013-12-05 | Based on Continuous Flow biological denitrification method and the device of granule sludge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103663725A true CN103663725A (en) | 2014-03-26 |
| CN103663725B CN103663725B (en) | 2015-07-29 |
Family
ID=50302631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310652786.0A Active CN103663725B (en) | 2013-12-05 | 2013-12-05 | Based on Continuous Flow biological denitrification method and the device of granule sludge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103663725B (en) |
Cited By (38)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104150585A (en) * | 2014-07-28 | 2014-11-19 | 浙江大学 | Denitrification and algae removal-enhanced raw water biomembrane pretreatment technology device and method |
| CN104276655A (en) * | 2014-10-28 | 2015-01-14 | 兰州理工大学 | Solar aerobic granular sludge/sewage treatment device |
| CN105936542A (en) * | 2016-06-20 | 2016-09-14 | 江西理工大学 | AB-process aerobic granular sludge reactor and treatment technology thereof |
| CN106315847A (en) * | 2016-11-14 | 2017-01-11 | 安徽华骐环保科技股份有限公司 | Immobilization filler biomembrane activation and updating and sludge resuspension method |
| CN106745713A (en) * | 2015-11-19 | 2017-05-31 | 中国石油化工股份有限公司 | A kind of quick start method of anaerobic ammonia oxidation reactor |
| CN107244731A (en) * | 2017-07-13 | 2017-10-13 | 浙江大学 | Effectively control the reactor assembly and method of aerobic particle mud system dissolved oxygen |
| CN108439588A (en) * | 2018-02-01 | 2018-08-24 | 哈尔滨工业大学 | The pulling flow type reaction unit and method of nitrosation-anaerobic ammoxidation process stabilizing operation |
| CN108585198A (en) * | 2018-04-22 | 2018-09-28 | 北京工业大学 | A method of short distance nitration Anammox denitrogenation is strengthened based on filler assembly |
| CN109095601A (en) * | 2018-10-25 | 2018-12-28 | 江西理工大学 | Aerobic granular sludge reactor operation stability based on size controlling maintains method |
| CN109231448A (en) * | 2018-10-15 | 2019-01-18 | 北京城市排水集团有限责任公司 | A kind of device and its operation method of fast realizing anaerobic ammonium oxidation granulation |
| CN109311058A (en) * | 2016-09-12 | 2019-02-05 | 岭南大学校产学协力团 | Fine granular separator |
| CN109354172A (en) * | 2018-12-05 | 2019-02-19 | 青岛思普润水处理股份有限公司 | A kind of quick start method of the CANON system based on MBBR |
| CN109354173A (en) * | 2018-12-05 | 2019-02-19 | 青岛思普润水处理股份有限公司 | A kind of CANON system and operation method based on MBBR |
| CN109835984A (en) * | 2017-11-27 | 2019-06-04 | 中国石油天然气集团公司 | A kind of integral part nitrosation clarifier and control method |
| CN110002677A (en) * | 2019-04-19 | 2019-07-12 | 北京工业大学 | Deep treatment method after the anaerobic digestion of excess sludge of municipal sewage plant |
| CN110550737A (en) * | 2019-08-21 | 2019-12-10 | 万创青绿（北京）环境科技有限公司 | Granular sludge preparation method and reactor |
| CN112358042A (en) * | 2020-09-16 | 2021-02-12 | 博瑞德环境集团股份有限公司 | Culture method of wastewater treatment denitrification granular sludge |
| CN112707505A (en) * | 2020-12-15 | 2021-04-27 | 北京工业大学 | Anaerobic ammonia oxidation reaction system based on granular sludge enhanced separation device and operation method |
| CN113277617A (en) * | 2021-06-11 | 2021-08-20 | 北京大学深圳研究生院 | Novel sewage denitrification device based on anaerobic ammonia oxidation |
| CN113304684A (en) * | 2021-06-02 | 2021-08-27 | 浙江大学 | Continuous flow aerobic granular sludge reaction device and method with inner sleeve |
| CN113304685A (en) * | 2021-06-02 | 2021-08-27 | 浙江大学 | Continuous flow aerobic granular sludge reaction device with stirring paddle internal member and method |
| CN113651416A (en) * | 2021-08-06 | 2021-11-16 | 浙江大学 | Suspended state whole-course nitrifying bacteria continuous flow enrichment device and method |
| CN113687043A (en) * | 2021-08-23 | 2021-11-23 | 重庆长寿中法水务有限公司 | A device for monitoring the toxicity of industrial wastewater and its working method |
| CN114088773A (en) * | 2021-12-22 | 2022-02-25 | 北京城市排水集团有限责任公司 | Detection apparatus for mud phosphorus capacity |
| CN114772870A (en) * | 2022-05-24 | 2022-07-22 | 湖南五方环境科技研究院有限公司 | Sewage treatment device and method for continuous flow sludge particles with controllable particle sizes |
| CN115304160A (en) * | 2022-07-18 | 2022-11-08 | 北京城市排水集团有限责任公司 | Method and device for quickly culturing anaerobic ammonium oxidation granular sludge of high ammonia nitrogen wastewater |
| CN115974280A (en) * | 2023-01-16 | 2023-04-18 | 廖翠 | A micro-oxygen ammonium oxidation high-efficiency biological denitrification system and its working method |
| EP4169882A1 (en) * | 2014-06-30 | 2023-04-26 | Hampton Roads Sanitation District | Method and apparatus for wastewater treatment using external selection |
| CN117383704A (en) * | 2023-10-23 | 2024-01-12 | 河南工业大学 | Denitrification device, denitrification control method and denitrification controller |
| CN117401819A (en) * | 2023-10-27 | 2024-01-16 | 中国电建集团西北勘测设计研究院有限公司 | A reactor and method for simultaneous realization of denitrification and anaerobic ammonium oxidation granular sludge production |
| CN117486369A (en) * | 2023-12-19 | 2024-02-02 | 北京城市排水集团有限责任公司 | A continuous flow anaerobic ammonia oxidation denitrification process granular sludge rapid cultivation device and method |
| CN117623513A (en) * | 2023-11-07 | 2024-03-01 | 中煤科工集团杭州研究院有限公司 | A method for treating high ammonia nitrogen wastewater |
| CN118125614A (en) * | 2024-01-16 | 2024-06-04 | 北威水环境科技(上海)有限公司 | An anaerobic ammonium oxidation denitrification system |
| US11999641B2 (en) | 2021-03-12 | 2024-06-04 | Hampton Roads Sanitation District | Method and apparatus for multi-deselection in wastewater treatment |
| CN118359302A (en) * | 2024-04-08 | 2024-07-19 | 北京首创生态环保集团股份有限公司 | Aerobic granular sludge culture system and operation method thereof |
| CN119080335A (en) * | 2024-10-15 | 2024-12-06 | 江苏南大华兴环保科技股份公司 | A low-carbon modular biological denitrification treatment system and method for industrial nitrogen-containing wastewater |
| CN119219196A (en) * | 2024-11-06 | 2024-12-31 | 北京城市排水集团有限责任公司 | A method and device for cultivating integrated short-range nitrification anaerobic ammonium oxidation granular sludge |
| US12221369B2 (en) | 2021-03-12 | 2025-02-11 | Hampton Roads Sanitation District | Method and apparatus for nutrient removal using anoxic biofilms |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1236688A1 (en) * | 1999-11-12 | 2002-09-04 | Insertam S.L. | Biological purification plant for residual waters equipped with anaerobic digestors and purification process |
| CN1927739A (en) * | 2006-08-29 | 2007-03-14 | 湖南大学 | Operation mode and apparatus of short distance nitration-anaerobic ammoxidation batched biomembrane denitrogenation |
| JP2013016905A (en) * | 2011-06-30 | 2013-01-24 | Nikon Corp | Imaging apparatus |
| CN103086573A (en) * | 2013-01-28 | 2013-05-08 | 应清界 | Method for treating municipal sewage by using separate FBR (facultative biofilm reactor) |
| CN103172175A (en) * | 2013-03-22 | 2013-06-26 | 北京交通大学 | Method and device for synchronous partial nitrification and biofilm anaerobic ammonia oxidation |
-
2013
- 2013-12-05 CN CN201310652786.0A patent/CN103663725B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1236688A1 (en) * | 1999-11-12 | 2002-09-04 | Insertam S.L. | Biological purification plant for residual waters equipped with anaerobic digestors and purification process |
| CN1927739A (en) * | 2006-08-29 | 2007-03-14 | 湖南大学 | Operation mode and apparatus of short distance nitration-anaerobic ammoxidation batched biomembrane denitrogenation |
| JP2013016905A (en) * | 2011-06-30 | 2013-01-24 | Nikon Corp | Imaging apparatus |
| CN103086573A (en) * | 2013-01-28 | 2013-05-08 | 应清界 | Method for treating municipal sewage by using separate FBR (facultative biofilm reactor) |
| CN103172175A (en) * | 2013-03-22 | 2013-06-26 | 北京交通大学 | Method and device for synchronous partial nitrification and biofilm anaerobic ammonia oxidation |
Cited By (55)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4169882A1 (en) * | 2014-06-30 | 2023-04-26 | Hampton Roads Sanitation District | Method and apparatus for wastewater treatment using external selection |
| CN104150585A (en) * | 2014-07-28 | 2014-11-19 | 浙江大学 | Denitrification and algae removal-enhanced raw water biomembrane pretreatment technology device and method |
| CN104150585B (en) * | 2014-07-28 | 2015-09-30 | 浙江大学 | Strengthened denitrification is except the former aquatic organism film pretreatment technology device and method of algae |
| CN104276655B (en) * | 2014-10-28 | 2016-08-24 | 兰州理工大学 | Solar energy aerobic particle sludge sewage treatment device |
| CN104276655A (en) * | 2014-10-28 | 2015-01-14 | 兰州理工大学 | Solar aerobic granular sludge/sewage treatment device |
| CN106745713A (en) * | 2015-11-19 | 2017-05-31 | 中国石油化工股份有限公司 | A kind of quick start method of anaerobic ammonia oxidation reactor |
| CN106745713B (en) * | 2015-11-19 | 2020-08-11 | 中国石油化工股份有限公司 | Rapid starting method of anaerobic ammonia oxidation reactor |
| CN105936542A (en) * | 2016-06-20 | 2016-09-14 | 江西理工大学 | AB-process aerobic granular sludge reactor and treatment technology thereof |
| CN105936542B (en) * | 2016-06-20 | 2018-12-21 | 江西理工大学 | A kind of AB method aerobic granular sludge reactor and its treatment process |
| CN109311058A (en) * | 2016-09-12 | 2019-02-05 | 岭南大学校产学协力团 | Fine granular separator |
| CN106315847A (en) * | 2016-11-14 | 2017-01-11 | 安徽华骐环保科技股份有限公司 | Immobilization filler biomembrane activation and updating and sludge resuspension method |
| CN107244731A (en) * | 2017-07-13 | 2017-10-13 | 浙江大学 | Effectively control the reactor assembly and method of aerobic particle mud system dissolved oxygen |
| CN109835984B (en) * | 2017-11-27 | 2022-05-10 | 中国石油天然气集团公司 | Integrated partial nitrosation clarification device and control method |
| CN109835984A (en) * | 2017-11-27 | 2019-06-04 | 中国石油天然气集团公司 | A kind of integral part nitrosation clarifier and control method |
| CN108439588A (en) * | 2018-02-01 | 2018-08-24 | 哈尔滨工业大学 | The pulling flow type reaction unit and method of nitrosation-anaerobic ammoxidation process stabilizing operation |
| CN108439588B (en) * | 2018-02-01 | 2021-02-02 | 哈尔滨工业大学 | Plug-flow reaction device and method for stable operation of nitrosation-anammox process |
| CN108585198A (en) * | 2018-04-22 | 2018-09-28 | 北京工业大学 | A method of short distance nitration Anammox denitrogenation is strengthened based on filler assembly |
| CN108585198B (en) * | 2018-04-22 | 2021-07-16 | 北京工业大学 | A method for strengthening short-path nitrification anammox denitrification based on packing components |
| CN109231448B (en) * | 2018-10-15 | 2024-01-30 | 北京城市排水集团有限责任公司 | Device for rapidly realizing anaerobic ammonia oxidation granulation and operation method thereof |
| CN109231448A (en) * | 2018-10-15 | 2019-01-18 | 北京城市排水集团有限责任公司 | A kind of device and its operation method of fast realizing anaerobic ammonium oxidation granulation |
| CN109095601B (en) * | 2018-10-25 | 2021-07-06 | 江西理工大学 | A method for maintaining operation stability of aerobic granular sludge reactor based on particle size control |
| CN109095601A (en) * | 2018-10-25 | 2018-12-28 | 江西理工大学 | Aerobic granular sludge reactor operation stability based on size controlling maintains method |
| CN109354173A (en) * | 2018-12-05 | 2019-02-19 | 青岛思普润水处理股份有限公司 | A kind of CANON system and operation method based on MBBR |
| CN109354173B (en) * | 2018-12-05 | 2023-06-16 | 青岛思普润水处理股份有限公司 | CANON system based on MBBR and operation method |
| CN109354172A (en) * | 2018-12-05 | 2019-02-19 | 青岛思普润水处理股份有限公司 | A kind of quick start method of the CANON system based on MBBR |
| CN110002677B (en) * | 2019-04-19 | 2021-07-30 | 北京工业大学 | Advanced treatment method after anaerobic digestion of excess sludge in urban sewage treatment plant |
| CN110002677A (en) * | 2019-04-19 | 2019-07-12 | 北京工业大学 | Deep treatment method after the anaerobic digestion of excess sludge of municipal sewage plant |
| CN110550737A (en) * | 2019-08-21 | 2019-12-10 | 万创青绿（北京）环境科技有限公司 | Granular sludge preparation method and reactor |
| CN110550737B (en) * | 2019-08-21 | 2022-04-29 | 万创青绿（北京）环境科技有限公司 | Granular sludge preparation method and reactor |
| CN112358042A (en) * | 2020-09-16 | 2021-02-12 | 博瑞德环境集团股份有限公司 | Culture method of wastewater treatment denitrification granular sludge |
| CN112707505A (en) * | 2020-12-15 | 2021-04-27 | 北京工业大学 | Anaerobic ammonia oxidation reaction system based on granular sludge enhanced separation device and operation method |
| US12221369B2 (en) | 2021-03-12 | 2025-02-11 | Hampton Roads Sanitation District | Method and apparatus for nutrient removal using anoxic biofilms |
| US11999641B2 (en) | 2021-03-12 | 2024-06-04 | Hampton Roads Sanitation District | Method and apparatus for multi-deselection in wastewater treatment |
| CN113304684A (en) * | 2021-06-02 | 2021-08-27 | 浙江大学 | Continuous flow aerobic granular sludge reaction device and method with inner sleeve |
| CN113304685A (en) * | 2021-06-02 | 2021-08-27 | 浙江大学 | Continuous flow aerobic granular sludge reaction device with stirring paddle internal member and method |
| CN113277617A (en) * | 2021-06-11 | 2021-08-20 | 北京大学深圳研究生院 | Novel sewage denitrification device based on anaerobic ammonia oxidation |
| CN113651416A (en) * | 2021-08-06 | 2021-11-16 | 浙江大学 | Suspended state whole-course nitrifying bacteria continuous flow enrichment device and method |
| CN113687043A (en) * | 2021-08-23 | 2021-11-23 | 重庆长寿中法水务有限公司 | A device for monitoring the toxicity of industrial wastewater and its working method |
| CN114088773A (en) * | 2021-12-22 | 2022-02-25 | 北京城市排水集团有限责任公司 | Detection apparatus for mud phosphorus capacity |
| CN114772870B (en) * | 2022-05-24 | 2023-10-31 | 湖南五方环境科技研究院有限公司 | Sewage treatment device and method for continuous flow particle size controllable sludge particles |
| CN114772870A (en) * | 2022-05-24 | 2022-07-22 | 湖南五方环境科技研究院有限公司 | Sewage treatment device and method for continuous flow sludge particles with controllable particle sizes |
| CN115304160A (en) * | 2022-07-18 | 2022-11-08 | 北京城市排水集团有限责任公司 | Method and device for quickly culturing anaerobic ammonium oxidation granular sludge of high ammonia nitrogen wastewater |
| CN115974280A (en) * | 2023-01-16 | 2023-04-18 | 廖翠 | A micro-oxygen ammonium oxidation high-efficiency biological denitrification system and its working method |
| CN115974280B (en) * | 2023-01-16 | 2025-11-25 | 廖翠 | A highly efficient biological nitrogen removal system based on micro-oxygen ammonia oxidation and its working method |
| CN117383704A (en) * | 2023-10-23 | 2024-01-12 | 河南工业大学 | Denitrification device, denitrification control method and denitrification controller |
| CN117401819A (en) * | 2023-10-27 | 2024-01-16 | 中国电建集团西北勘测设计研究院有限公司 | A reactor and method for simultaneous realization of denitrification and anaerobic ammonium oxidation granular sludge production |
| CN117623513A (en) * | 2023-11-07 | 2024-03-01 | 中煤科工集团杭州研究院有限公司 | A method for treating high ammonia nitrogen wastewater |
| CN117623513B (en) * | 2023-11-07 | 2025-09-26 | 中煤科工集团杭州研究院有限公司 | A method for treating high-ammonia nitrogen wastewater |
| CN117486369A (en) * | 2023-12-19 | 2024-02-02 | 北京城市排水集团有限责任公司 | A continuous flow anaerobic ammonia oxidation denitrification process granular sludge rapid cultivation device and method |
| CN118125614A (en) * | 2024-01-16 | 2024-06-04 | 北威水环境科技(上海)有限公司 | An anaerobic ammonium oxidation denitrification system |
| CN118359302A (en) * | 2024-04-08 | 2024-07-19 | 北京首创生态环保集团股份有限公司 | Aerobic granular sludge culture system and operation method thereof |
| CN119080335A (en) * | 2024-10-15 | 2024-12-06 | 江苏南大华兴环保科技股份公司 | A low-carbon modular biological denitrification treatment system and method for industrial nitrogen-containing wastewater |
| CN119080335B (en) * | 2024-10-15 | 2025-08-05 | 江苏南大华兴环保科技股份公司 | A low-carbon modular biological denitrification treatment system and method for industrial nitrogenous wastewater |
| CN119219196A (en) * | 2024-11-06 | 2024-12-31 | 北京城市排水集团有限责任公司 | A method and device for cultivating integrated short-range nitrification anaerobic ammonium oxidation granular sludge |
| CN119219196B (en) * | 2024-11-06 | 2025-08-01 | 北京城市排水集团有限责任公司 | Method and device for culturing integrated shortcut nitrification anaerobic ammonia oxidation granular sludge |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103663725B (en) | 2015-07-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103663725A (en) | Continuous flow biological denitrification method based on granular sludge, and apparatus | |
| CN102964035B (en) | Device for autotrophic nitrogen removal of composite biological membrane and operation method | |
| CN110436704B (en) | Urban sewage treatment upgrading and reforming process based on anaerobic ammonia oxidation | |
| CN110002592B (en) | Device and method for treating domestic sewage by coupling short-cut denitrification-sludge fermentation with anaerobic ammonia oxidation system | |
| CN103482763B (en) | Polymorphic microorganism aggregate autotrophic nitrogen removal integrated device and operation method | |
| CN102659244B (en) | Integrated internal circulation type denitrification and decarburization bio-membrane reactor and operating method thereof | |
| CN105217786B (en) | Based on DEAMOX reinforcing improvement subsection water inflow As2The apparatus and method of/O technique biological carbon and phosphorous removals | |
| CN114772725A (en) | Device and method for enhancing nitrogen and phosphorus removal of domestic sewage by coupling sulfur autotrophic short-cut denitrification with anaerobic ammonia oxidation | |
| CN102180565B (en) | A method and device for enhancing biological denitrification of urban sewage | |
| CN113024032B (en) | A short-range nitrification and denitrification coupled with anammox-MBR-sulfur autotrophic denitrification and denitrification process and system | |
| CN105236573B (en) | A kind of fast culture process of municipal sewage SNAD biomembranes | |
| CN103601341A (en) | SBR (Sequencing Batch Reactor) and SBBR (Sequencing Biofilm Batch Reactor) municipal sewage high-efficiency biological treatment method and device based on anaerobic ammonia oxidation | |
| CN106277326B (en) | An aerobic-anaerobic integrated granular sludge reactor and its method for treating wastewater | |
| CN103382073A (en) | Membrane separation and biological process for resourceful treatment of garbage leachate and device thereof | |
| CN101580297A (en) | Method for hanging membrane in sludge internal circulation biological filter | |
| CN101538104A (en) | Improved A*N denitrifying dephosphatation and deep denitrification device and method | |
| CN102079609A (en) | Quick start method for short-range deep denitrification by SBR (Sequencing Batch Reactor) process at low temperature | |
| CN112811719A (en) | Autotrophic denitrification treatment system and method for urban sewage | |
| CN112939335A (en) | Deep denitrification system and method based on heterotrophic and autotrophic combined treatment | |
| CN115893662B (en) | Device and method for deep denitrification of mainstream and sidestream sewage in sewage treatment plants based on dual short-range anaerobic ammonium oxidation combined with sludge fermentation | |
| CN108862581A (en) | A kind of device and method that AO biomembrane+sludge fermentation coupling denitrification realizes sewage deep denitrogenation synchronous sludge decrement | |
| CN110104900A (en) | A kind of environmentally friendly high efficiency composition thermal power plant domestic sewage processing system and method | |
| CN112250177A (en) | Device and method for realizing efficient denitrification of landfill leachate by utilizing shortcut nitrification-anaerobic ammonia oxidation | |
| CN101654312A (en) | Device and method for continuously operation and reinforcement of biomembrane phosphate removing | |
| CN105110462B (en) | A kind of quick device and method for realizing high ammonia-nitrogen wastewater BAF short distance nitration |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |