CN108862840A - A kind of modified form A2The sewage disposal system of O technique - Google Patents
A kind of modified form A2The sewage disposal system of O technique Download PDFInfo
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- CN108862840A CN108862840A CN201810693054.9A CN201810693054A CN108862840A CN 108862840 A CN108862840 A CN 108862840A CN 201810693054 A CN201810693054 A CN 201810693054A CN 108862840 A CN108862840 A CN 108862840A
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- 239000010865 sewage Substances 0.000 title claims abstract description 48
- 238000000034 method Methods 0.000 title claims abstract description 26
- 241000894006 Bacteria Species 0.000 claims abstract description 56
- 239000010802 sludge Substances 0.000 claims abstract description 49
- 238000010992 reflux Methods 0.000 claims abstract description 46
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 33
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 23
- 239000007788 liquid Substances 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 49
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 19
- 239000001301 oxygen Substances 0.000 claims description 19
- 229910052760 oxygen Inorganic materials 0.000 claims description 19
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 11
- 239000010949 copper Substances 0.000 claims description 11
- 229910052802 copper Inorganic materials 0.000 claims description 11
- 238000007254 oxidation reaction Methods 0.000 claims description 11
- 241000193403 Clostridium Species 0.000 claims description 10
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 10
- 241000633183 Anaerolinea Species 0.000 claims description 9
- 241000186000 Bifidobacterium Species 0.000 claims description 9
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 8
- 241000607715 Serratia marcescens Species 0.000 claims description 8
- 241001141128 Flavobacteriales Species 0.000 claims description 7
- 241000588621 Moraxella Species 0.000 claims description 7
- 241000601428 Phycisphaerae Species 0.000 claims description 7
- 239000004020 conductor Substances 0.000 claims description 6
- 241001430073 Candidatus Anammoxoglobus propionicus Species 0.000 claims description 5
- 241000468339 Candidatus Brocadia Species 0.000 claims description 5
- 241000480585 Candidatus Kuenenia Species 0.000 claims description 5
- 241000661436 Candidatus Scalindua Species 0.000 claims description 5
- 229910052759 nickel Inorganic materials 0.000 claims description 5
- 239000010936 titanium Substances 0.000 claims description 5
- 241001397818 Candidatus Jettenia Species 0.000 claims description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 4
- 238000005273 aeration Methods 0.000 claims description 4
- 229910021529 ammonia Inorganic materials 0.000 claims description 4
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- 230000005611 electricity Effects 0.000 claims description 3
- 239000007789 gas Substances 0.000 claims 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 32
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 16
- 229920000388 Polyphosphate Polymers 0.000 abstract description 15
- 239000001205 polyphosphate Substances 0.000 abstract description 15
- 235000011176 polyphosphates Nutrition 0.000 abstract description 15
- 229920000037 Polyproline Polymers 0.000 abstract description 13
- 238000006243 chemical reaction Methods 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 11
- 241001453382 Nitrosomonadales Species 0.000 abstract description 8
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 30
- 229910052698 phosphorus Inorganic materials 0.000 description 30
- 239000011574 phosphorus Substances 0.000 description 30
- 239000005416 organic matter Substances 0.000 description 13
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 12
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 9
- 238000006396 nitration reaction Methods 0.000 description 9
- 244000005700 microbiome Species 0.000 description 8
- 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 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 6
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 5
- 229920001397 Poly-beta-hydroxybutyrate Polymers 0.000 description 5
- 229920000331 Polyhydroxybutyrate Polymers 0.000 description 5
- 210000004027 cell Anatomy 0.000 description 5
- 238000005868 electrolysis reaction Methods 0.000 description 5
- 238000000855 fermentation Methods 0.000 description 5
- 230000004151 fermentation Effects 0.000 description 5
- 230000003647 oxidation Effects 0.000 description 5
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 description 4
- 239000003344 environmental pollutant Substances 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 description 4
- 231100000719 pollutant Toxicity 0.000 description 4
- 102000004169 proteins and genes Human genes 0.000 description 4
- 108090000623 proteins and genes Proteins 0.000 description 4
- ZKHQWZAMYRWXGA-KQYNXXCUSA-N Adenosine triphosphate Chemical compound C1=NC=2C(N)=NC=NC=2N1[C@@H]1O[C@H](COP(O)(=O)OP(O)(=O)OP(O)(O)=O)[C@@H](O)[C@H]1O ZKHQWZAMYRWXGA-KQYNXXCUSA-N 0.000 description 3
- 229910002651 NO3 Inorganic materials 0.000 description 3
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 3
- JVMRPSJZNHXORP-UHFFFAOYSA-N ON=O.ON=O.ON=O.N Chemical compound ON=O.ON=O.ON=O.N JVMRPSJZNHXORP-UHFFFAOYSA-N 0.000 description 3
- 229910019142 PO4 Inorganic materials 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 3
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- 230000015572 biosynthetic process Effects 0.000 description 3
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- 239000013618 particulate matter Substances 0.000 description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 3
- 239000010452 phosphate Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 238000004065 wastewater treatment Methods 0.000 description 3
- 206010021143 Hypoxia Diseases 0.000 description 2
- YUWBVKYVJWNVLE-UHFFFAOYSA-N [N].[P] Chemical compound [N].[P] YUWBVKYVJWNVLE-UHFFFAOYSA-N 0.000 description 2
- 150000001413 amino acids Chemical class 0.000 description 2
- 230000001651 autotrophic effect Effects 0.000 description 2
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- 239000001569 carbon dioxide Substances 0.000 description 2
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 description 2
- 230000012010 growth Effects 0.000 description 2
- 239000004310 lactic acid Substances 0.000 description 2
- 235000014655 lactic acid Nutrition 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 2
- 239000000693 micelle Substances 0.000 description 2
- 230000000813 microbial effect Effects 0.000 description 2
- -1 nitrogenous compound Chemical class 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- 241001589086 Bellapiscis medius Species 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 description 1
- 241000108664 Nitrobacteria Species 0.000 description 1
- FRYDSOYOHWGSMD-UHFFFAOYSA-N [C].O Chemical compound [C].O FRYDSOYOHWGSMD-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 238000004176 ammonification Methods 0.000 description 1
- 239000010405 anode material Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 210000000170 cell membrane Anatomy 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000037406 food intake Effects 0.000 description 1
- 235000019253 formic acid Nutrition 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 208000018875 hypoxemia Diseases 0.000 description 1
- 230000001146 hypoxic effect Effects 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 150000002484 inorganic compounds Chemical class 0.000 description 1
- 150000002632 lipids Chemical class 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000002906 microbiologic effect Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- YPJKMVATUPSWOH-UHFFFAOYSA-N nitrooxidanyl Chemical compound [O][N+]([O-])=O YPJKMVATUPSWOH-UHFFFAOYSA-N 0.000 description 1
- 150000007523 nucleic acids Chemical class 0.000 description 1
- 102000039446 nucleic acids Human genes 0.000 description 1
- 108020004707 nucleic acids Proteins 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 230000035764 nutrition Effects 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 125000001477 organic nitrogen group Chemical group 0.000 description 1
- 150000003904 phospholipids Chemical class 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 235000019260 propionic acid Nutrition 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 description 1
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/105—Phosphorus compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
- C02F3/308—Biological phosphorus removal
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The present invention provides a kind of modified form A2The sewage disposal system of O technique, belongs to technical field of sewage, specifically includes：Coarse rack well, fine fack well, anaerobic pond, anoxic pond, aerobic tank and the secondary settling tank being sequentially communicated, anaerobic pond is inoculated with the anaerobic sludge through taming, it can carry out Anammox reaction, exhaust outlet is equipped at the top of anaerobic pond, interior backflow mixed liquor pipeline is provided between aerobic tank and anaerobic pond, nitrification liquid is set to flow back, the reflux ratio of interior reflux is 300%~500%, exteenal reflux sludge pipe is provided between secondary settling tank and anaerobic pond, the reflux ratio of exteenal reflux is 120%~200%, and secondary settling tank is additionally provided with excess sludge discharge outlet.The removal of total nitrogen is completed by anaerobic ammonia oxidizing bacteria and denitrifying bacterium collective effect, denitrification ability is strong, and carbon source and growing space are not competed with polyP bacteria, and dephosphorization efficiency is high.
Description
Technical field
The present invention relates to technical field of sewage, and in particular to a kind of modified form A2The sewage disposal system of O technique.
Background technique
A2O technique is also known as AAO technique, i.e., is a kind of common secondary sewage processing work in anaerobic-anoxic-aerobic process
Skill, has the function of synchronous denitrification dephosphorizing, and process is：Sewage and returned sludge are introduced into anaerobic pond (DO<0.2mg/L) completely
Mixing, the anaerobic digestion through certain time remove part BOD, and part nitrogenous compound are made to be converted to N2Release, returned sludge
In poly- phosphorus Microbiological release go out phosphorus, meet the needs of bacterium is to phosphorus, then sewage flow into anoxic pond (DO≤0.5mg/L), pond
In denitrifying bacteria using carbonaceous organic material undecomposed in sewage as carbon source, by what is come in aerobic tank by inner circulating reflux
Reducing nitrate radical is N2And discharge, following sewage flows into aerobic tank (DO=2~4mg/L), and the ammonia nitrogen in water nitrify anti-
Nitrate anion should be generated, while the oxidation operation in water decomposes supply and inhales phosphorus microorganism with energy, microorganism absorbs phosphorus from water,
Phosphorus enters cell tissue, is enriched in microorganism, is discharged from system in the form of rich phosphorous sludge after precipitation and separation.Detesting
Oxygen/anoxic/aerobic (A2O) during Process for Treating Municipal, since the water quality of the low organic matter of municipal sewage, high nitrogen phosphorus is special
Point causes carbon source insufficient, so that denitrification denitrogenation is undesirable during this, is extremely difficult to good synchronous denitrification dephosphorizing effect.
China Patent No. CN201310474121.5 discloses a kind of modified form A2O sewage water treatment method, by aerobic
The biological phase separator being arranged in pond enters sedimentation basin, while the supernatant in biological phase separator after making sludge preliminary sedimentation
It is back to anoxic pond；Though adding somewhat to the nitrification efficiency of aerobic tank, the sludge to flow back from aerobic tank can be carried secretly
More nitrate nitrogen hinders anaerobic phosphorus release, then influences the denitrification of anoxic pond to increase the organic matter consumption of anaerobic pond
PolyP bacteria in reaction and aerobic tank inhales phosphorus reaction；It will lead to secondly, the anti-nitration reaction of anoxic pond is insufficient into aerobic tank
In sewage contain a certain amount of nitrate nitrogen, keep ammonia nitrogen concentration in water outlet high, total nitrogen purification efficiency is low.
Summary of the invention
In view of the deficiencies of the prior art, the present invention provides a kind of modified form A2The sewage disposal system of O technique, by detesting
Anaerobic ammonium oxidation bacterium and denitrifying bacterium collective effect complete the removal of total nitrogen, and denitrification ability is strong, and do not compete with polyP bacteria carbon source and
Growing space, dephosphorization efficiency is high, solves traditional A2PolyP bacteria and the competition of denitrifying bacterium carbon source and sludge age in O technique anaerobic pond
The contradiction of difference.
In order to solve the above technical problems, the following technical solution is employed by the present invention：
A kind of modified form A2The sewage disposal system of O technique, including coarse rack well, the fine fack well, anaerobism being sequentially communicated
Pond, anoxic pond, aerobic tank and secondary settling tank, the anaerobic pond are inoculated with the anaerobic sludge through taming, it is anti-can to carry out Anammox
It answers, exhaust outlet is equipped at the top of the anaerobic pond, interior backflow mixed liquor pipeline is provided between the aerobic tank and the anaerobic pond,
Nitrification liquid is set to flow back, the reflux ratio of interior reflux is 300%~500%, is provided between the secondary settling tank and the anaerobic pond outer
Returned sludge pipeline, the reflux ratio of exteenal reflux are 120%~200%, and the secondary settling tank is additionally provided with excess sludge discharge outlet.
Further, the dominant bacteria in the anaerobic sludge include Anammox bacteria, Anaerolinea,
Bifidobacterium、Clostridium、Methanogenus、Moraxella、Serratia marcescens、
Phycisphaerae and Flavobacteriales.
Further, the Anammox bacteria includes Candidatus Kuenenia, Candidatus
One of Jettenia, Candidatus Brocadia, Scalindua, Anammoxoglobus propionicus or more
Kind.
It further, further include Bio-electro reactor, the anode of the Bio-electro reactor is located at aerobic tank
Interior, cathode is located in anoxic pond, and the fixed denitrifying bacterium biomembrane of cathode surface, anode and cathode passes through the external electricity of copper conductor respectively
Case is hindered, closed circuit is formed.
Further, the voltage of the Bio-electro reactor electrode is 0.5~5V, 150~1000mA/ of current density
cm2。
Further, the anode is one of nickel, copper, titanium, and the cathode is carbon cloth, graphite carbon felt, active carbon fibre
One of dimension.
Further, the anode is tubular structure, bonds one layer of far infrared irradiation ore in the tubular, transmitting
Far infrared wavelength is 6~14 μm.
Further, the far infrared irradiation mineral selection is from one of charcoal, jade, far-infrared ceramic or more
Kind.
Further, connection aeration pump is aerated outside the aerobic tank, and dissolved oxygen control is in 0.8~1.5mg/ in aerobic tank
Between L.
Further, the anaerobic pond, anoxic pond, aerobic tank hydraulic detention time be respectively：2h,2h,8h.
The sewage water treatment method, specifically includes following steps：
S1, sewage sequentially enter coarse rack well and fine fack well removes float impurity and large particulate matter；
The water outlet of S2, fine fack well initially enter anaerobic pond, and with exteenal reflux sludge and the interior reflux from aerobic tank mixes
Liquid carries out Anammox denitrogenation and anaerobic phosphorus release；
The water outlet of S3, anaerobic pond enter anoxic pond, generate H with cathodic electrolytic water2It is electron donor with electronics, carries out anti-nitre
Change denitrogenation；
The water outlet of S4, anoxic pond enter aerobic tank, and anode electrolysis water generates O2, carry out the removal of BOD, nitrification and phosphorus
It absorbs, while a certain amount of mixed liquor is back in anaerobic pond in inner circulating reflux pipe；
The water outlet of S5, aerobic tank flow into secondary settling tank, mud-water separation are carried out in secondary settling tank, a part of sludge of secondary settling tank is through dirt
Mud reflux pump exteenal reflux to anaerobic pond, residual sludge pump to sludge treating system processing, the water outlet of secondary settling tank flows into ultraviolet disinfection
By water outlet measuring tank discharge after canal.
The beneficial effects of the invention are as follows：
1. the anaerobic sludge of anaerobic pond is using anaerobic ammonia oxidizing bacteria as dominant bacteria, anaerobic ammonia oxidizing bacteria under anaerobic, with
Ammonia is electron donor, and nitrite is electron acceptor, does not compete carbon source and growing space with polyP bacteria, therefore increase polyP bacteria
The amount of utilizable organic matter promotes polyP bacteria synthesis PHB and anaerobic phosphorus release, and then improves dephosphorization efficiency, solves tradition
A2The contradiction of polyP bacteria and denitrifying bacterium carbon source competition and sludge age difference in O technique anaerobic pond.
2. the Anammox that the nitrate nitrogen, ammonia nitrogen of backflow mixed liquor and the ammonia nitrogen of anaerobic pond pass through anaerobic pond in aerobic tank
The collective effect of the denitrifying bacterium of bacterium and anoxic pond removes, and nitrogen is substantially free of in the water outlet of anoxic pond, secondly, anaerobic pond releases phosphorus
It reacts independent with Anammox to carry out, does not compete carbon source, therefore, the amount of backflow mixed liquor in aerobic tank can be promoted to
300%~500%, enhance the denitrification ability of system entirety and the amount of sewage treatment.
3. disappearing by the denitrification of fermentation, anoxic pond and the oxidation of aerobic tank of anaerobic pond and nitrification
Most of organic matter adversely affected to anaerobic ammonia oxidizing bacteria is consumed, the mixed liquor to flow back through interior backflow mixed liquor pipeline contains
Organic concentration it is low, with water inlet mix after, the organic concentration of anaerobic pond is low, Anammox will not be inhibited to react, and detest
The organic acid such as formic acid, acetic acid, propionic acid etc. that the fermentation of oxygen pond generates, can be used as the carbon source or electron donor of anaerobic ammonia oxidizing bacteria, promote
The progress reacted into Anammox, is conducive to system denitrogenation.
4. adding Bio-electro reactor, pass through the effect of biological membrane electrode and far infrared, it is ensured that be aerated
In the case that dissolved oxygen amount is low, the oxidation reaction in aerobic tank is actively carried out, and is advantageously reduced aeration quantity, is shortened reaction time and drop
Low sludge yield, energy saving, and dissolved oxygen amount maintains reduced levels, is conducive to control nitration reaction in Nitrification Stage, Asia
Nitrate is the most suitable substrate of Anammox, and using nitrite as electron acceptor, Anammox reaction can be carried out quickly, because
This can reduce system operation time while guaranteeing denitrification effect, and the reduction of runing time is also beneficial to dephosphorization.
5. the present invention has good treatment effect to the sewage of low organic matter, high nitrogen phosphorus, effluent quality is high, is discharged COD
Concentration<50mg/L is discharged total nitrogen<15mg/L is discharged phosphate content<0.5mg/L；Reach《Urban wastewater treatment firm pollutant
Discharge standard》The level-one A standard of (GB 18918-2002), when especially handling low C/N sewage, denitrogenation dephosphorizing is good, therefore this
Invention is suitable for the processing for the municipal sewage that carbon source is insufficient, nitrogen and phosphorus content is high.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is modified form A of the invention2The structural schematic diagram of the sewage disposal system of O technique.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, is clearly and completely retouched to the technical solution in embodiment
It states.Obviously, described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.Based on this hair
Bright embodiment, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, shall fall within the protection scope of the present invention.
A kind of modified form A2The sewage disposal system of O technique, including coarse rack well, the fine fack well, anaerobism being sequentially communicated
Pond, anoxic pond, aerobic tank and secondary settling tank, the anaerobic pond are inoculated with the anaerobic sludge through taming, it is anti-can to carry out Anammox
It answers, exhaust outlet is equipped at the top of the anaerobic pond, interior backflow mixed liquor pipeline is provided between the aerobic tank and the anaerobic pond,
Nitrification liquid is set to flow back, the reflux ratio of interior reflux is 300%~500%, is provided between the secondary settling tank and the anaerobic pond outer
Returned sludge pipeline, the reflux ratio of exteenal reflux are 120%~200%, and the secondary settling tank is additionally provided with excess sludge discharge outlet.
Dominant bacteria in the anaerobic sludge include Anammox bacteria, Anaerolinea,
Bifidobacterium、Clostridium、Methanogenus、Moraxella、Serratia marcescens、
Phycisphaerae and Flavobacteriales.Anammox bacteria (anaerobic ammonia oxidizing bacteria) under anaerobic with
Ammonia is electron donor, and nitrite is electron acceptor, generates nitrogen, is the major microorganisms of denitrogenation.Anaerolinea (anaerobism
Rope bacterium) degrade carbohydrate and other nutriments (such as amino acid), Clostridium (clostridium) hydrolysis carbohydrate,
Protein is pure and mild organic acid such as acetic acid, lactic acid, amino acid etc., Bifidobacterium (Bifidobacterium) fermentation carbon hydrate
Object is active, and product is mainly acetic acid and lactic acid, and Methanogenus (methanogen) can send out inorganic or organic compound anaerobism
Ferment is converted to methane and carbon dioxide；Therefore Anaerolinea, Clostridium, Bifidobacterium and
The fermentations such as complicated organic matter-carbohydrate, protein and lipid are small molecule by the chemoheterotrophic bacterias such as Methanogenus
Organic matter-ammonium salt, alcohols, organic acid, methane and carbon dioxide etc., be conducive to the oxygenolysis of subsequent aerobic tank, and
There are electron transmissions between Anaerolinea, Clostridium and Methanogenus, can promote the generation of methane etc., favorably
In the anaerobic state for maintaining anaerobic pond, the anaerobism of phosphorus is promoted to discharge.Moraxella (catarrhalis) and Serratia
Marcescens (serratia marcescens) is polyP bacteria, anaerobism and under conditions of having sufficient nutrition, and polyP bacteria is by oppressive induction
It excites polyphosphate intracellular to decompose and generates ATP, while taking in extraneous organic matter, be converted into poly-β-hydroxy butyrate
(PHB) it is stored in into the cell, the phosphate of release also can be used as the phosphorus source of other microbial growths；Under aerobic environment,
PolyP bacteria is released energy by oxygenolysis PHB intracellular, is synthesized for cell, and actively poly- from extraneous huge uptake phosphate
It closes in vivo, polyphosphate is the energy and phosphorus source reservoir of polyP bacteria, by the poly- phosphorus mechanism of polyP bacteria it is found that in sewage
Content of organics is higher, and the PHB synthesized under anaerobic condition is more, and phosphorus discharges more thorough, then the poly- phosphorus amount under aerobic condition is got over
Greatly, dephosphorization efficiency is higher.Phycisphaerae and Flavobacteriales facilitates mud granule by forming reticular structure
Formation, promote the activity and settling property of sludge.
The Anammox bacteria include Candidatus Kuenenia, Candidatus Jettenia,
One of Candidatus Brocadia, Scalindua, Anammoxoglobus propionicus or a variety of.
The sewage disposal system further includes Bio-electro reactor, and the anode of the Bio-electro reactor is located at
In aerobic tank, cathode is located in anoxic pond, and the fixed denitrifying bacterium biomembrane of cathode surface, anode and cathode passes through copper conductor respectively
External resistance box forms closed circuit.In aerobic tank, anode electrolysis water generates O2, aerobic environment is formed in anode region, is promoted
Into the further oxidation of organic matter, and electron acceptor is provided for nitration reaction, is grown for the nitrobacteria of anode region, with CO2、
CO3 2-、HCO3 -As carbon source, short distance nitration reaction is carried out, meanwhile, it is electrolysed a small amount of O of generation2By oxidation reaction and nitration reaction
Consumption, not will increase the oxygen content of backflow mixed liquor in aerobic tank, and nitrite nitrogen is avoided to be further oxidized to nitrate nitrogen, improve sub-
The accumulation rate of nitrate nitrogen, and not will lead to anaerobism section and the increase of anoxic section oxygen content, maintain the hypoxemia of anaerobism section and anoxic section
State guarantees that Anammox and anti-nitration reaction are gone on smoothly.In anoxic pond, anaerobic pond oxidation is received by water flow first
The electronics and proton of organic matter release, while cathodic electrolytic water generates H2And electronics, hypoxic/anaerobic ring is formed in cathode zone
Border, while electronics, proton and H2Denitrifying bacterium for being fixed on cathode surface utilizes, and carries out denitrification denitrogenation, is conducive to improve
The abundance of autotrophic type denitrifying bacterium, and the competition of denitrifying microorganism and polyP bacteria in carbon source is reduced, while can guarantee low
Carbon source or without carbon source in the case of, anti-nitration reaction can also be gone on smoothly, improve nitric efficiency.
The voltage of the Bio-electro reactor electrode is 0.5~5V, 150~1000mA/cm of current density2.This hair
Bright voltage and current controls within this range under the conditions of test of many times, is electrolysed the O of generation2Oxidation reaction can sufficiently be met
For oxygen demand, and nitrite nitrogen content is high, can significantly improve the reaction efficiency of Anammox.
The anode is one of nickel, copper, titanium, and the cathode is carbon cloth, graphite carbon felt, one in activated carbon fibre
Kind.The inert metals such as nickel, copper, titanium conduct electricity very well as anode material and electrode potential are higher than water electrolysis oxygen evolution potential, and not
It is easily oxidized, therefore, generates O in anode electrolysis water2, to promote the oxidation reaction of aerobic tank；Cathode is that performance is stable, surface is thick
Rough porous material, the absorption convenient for denitrifying bacterium biomembrane are fixed.
The anode is tubular structure, bonds one layer of far infrared irradiation ore, the far infrared of transmitting in the tubular
Wavelength is 6~14 μm.The most effective absorption frequency of hydrone is about 6.27 μm, therefore the vibration of far-infrared engergy activation hydrone
Energy level promotes big water clusters to generate resonance, and then destroys the hydrogen bond between hydrone, reduces the degree of association between hydrone, raw
At small-micelle water, increases the dissolved oxygen ability and dissolved oxygen amount of water, be electrolysed the O of generation2It can be fully dissolved in electrode zone water, by oxygen
Change consumption, energy consumption caused by the overflow of oxygen is avoided to increase, and small-micelle water is easier to enter in microbial cell, is supported more
Part, minerals and oxygen are conveyed to cell, promote the progress of intracellular metabolism and respective reaction；Secondly, the vibration of far infrared
Energy and the energy that atriphos hydrolyzes are very close, can form resonance transmitting, promote atriphos hydrolysis energy supply,
On the other hand, on sludge microbe cell membrane there are many Phospholipids, protein and carbohydrate, their effective absorption frequency is also situated between
In within the scope of 4~14 μm of far infrareds, after microorganism absorbs far infrared, the intracorporal molecular entergy level of biology is made to be excited and locate
In compared with high vibration energy level, the activity of the large biological molecules such as nucleic acid protein, hydrolase is activated, polyP bacteria and autotrophic microbe are promoted
Growth and breeding, and then promoting sludge is in particulate form, improves settling property, while under sufficient Oxygen Condition, is accelerated corresponding
The oxidation reaction and nitration reaction of microorganism improve the effect of system denitrogenation dephosphorizing.
The far infrared irradiation mineral selection is from one of charcoal, jade, far-infrared ceramic or a variety of.
Connection aeration pump is aerated outside the aerobic tank, and dissolved oxygen control is between 0.8~1.5mg/L in aerobic tank.
The anaerobic pond, anoxic pond, aerobic tank hydraulic detention time be respectively：2h,2h,8h.
The sewage water treatment method, specifically includes following steps：
S1, sewage sequentially enter coarse rack well and fine fack well removes float impurity and large particulate matter；
The water outlet of S2, fine fack well initially enter anaerobic pond, and with exteenal reflux sludge and the interior reflux from aerobic tank mixes
Liquid carries out Anammox denitrogenation and anaerobic phosphorus release；
The water outlet of S3, anaerobic pond enter anoxic pond, generate H with cathodic electrolytic water2It is electron donor with electronics, carries out anti-nitre
Change denitrogenation；
The water outlet of S4, anoxic pond enter aerobic tank, and anode electrolysis water generates O2, carry out the removal of BOD, nitrification and phosphorus
It absorbs, while a certain amount of mixed liquor is back in anaerobic pond in inner circulating reflux pipe；
The water outlet of S5, aerobic tank flow into secondary settling tank, mud-water separation are carried out in secondary settling tank, a part of sludge of secondary settling tank is through dirt
Mud reflux pump exteenal reflux to anaerobic pond, residual sludge pump to sludge treating system processing, the water outlet of secondary settling tank flows into ultraviolet disinfection
By water outlet measuring tank discharge after canal.
The main function in middle each unit pond of the invention：
(1) sewage enters coarse rack well and removes the pollution impurity of large volume, and then the water outlet of coarse rack well is by elevator pump
It is promoted to fine fack well, soft twister, showy impurity and large particulate matter are removed, to protect follow-up work water pump service life
And reduce system processing workload.
(2) anaerobic pond carries out the fermentation of the anaerobism release and organic matter of phosphorus, i.e.,：By complicated hydrolysis of organic matter at small
The ammoniation of the organic matter and organic matter of molecule, while the nitrate nitrogen of aerobic tank reflux is in the effect of anaerobic ammonia oxidizing bacteria
Under, using ammonia as electron donor, nitrite is electron acceptor, generates nitrogen, removes ammonia nitrogen, Anammox reaction equation
For：
1NH4 ++1.32NO2 -+0.066HCO3 -+0.13H+→1.02N2+0.26NO3 -+0.066CH2O0.5N0.15
(3) since Anammox reaction can generate nitrate, anaerobic ammonia oxidizing bacteria cannot completely remove total in sewage
Therefore nitrogen will flow into anoxic pond containing the waste water of low amounts nitrate, be removed by denitrification, be remarkably improved total nitrogen removal
Rate.
(4) after sewage enters aerobic tank, organic matter is further aoxidized by microorganism, and BOD declines again；Organic nitrogen by ammonification after
And nitrified, ammonia nitrogen concentration is remarkably decreased, and with the progress of short distance nitration, nitrite nitrogen concentration increases；Phosphorus is with polyP bacteria
Excess ingestion and form high phosphorus concentration sludge also with the decline of faster rate, with excess sludge discharge system, thus
Achieve the purpose that dephosphorization.
Embodiment 1
A kind of modified form A2The sewage disposal system of O technique, including coarse rack well, the fine fack well, anaerobism being sequentially communicated
Pond, anoxic pond, aerobic tank and secondary settling tank, the anaerobic pond is inoculated with the anaerobic sludge through taming, excellent in the anaerobic sludge
Gesture bacterium bag include Anammox bacteria, Anaerolinea, Bifidobacterium, Clostridium,
Methanogenus, Moraxella, Serratia marcescens, Phycisphaerae and Flavobacteriales, institute
Stating Anammox bacteria includes Candidatus Kuenenia, Scalindua, Anammoxoglobus
Propionicus can carry out Anammox reaction, be equipped with exhaust outlet at the top of the anaerobic pond, the aerobic tank is detested with described
It is provided with interior backflow mixed liquor pipeline between oxygen pond, nitrification liquid is made to flow back, the reflux ratio of interior reflux is 300%, the secondary settling tank
Exteenal reflux sludge pipe is provided between the anaerobic pond, the reflux ratio of exteenal reflux is 120%, and the secondary settling tank is additionally provided with
Excess sludge discharge outlet.And Bio-electro reactor is equipped in aerobic tank and anoxic pond, anode uses the nickel electrode of tubular,
One layer of bonding can radiate the jade of 6~14 mum wavelength far infrareds in tubular, be located in aerobic tank, and cathode uses activated carbon fibre
Electrode, the fixed denitrifying bacterium biomembrane in surface, anode and cathode pass through the external resistance box of copper conductor respectively, form closed circuit,
Electrode voltage is 0.5~1V, 150~300mA/cm of current density2.The anaerobic pond, anoxic pond, aerobic tank hydraulic retention when
Between be respectively：2h,2h,8h.
In the present embodiment, average COD content is 356.3mg/L in municipal sewage water inlet, and average ammonia-nitrogen content is
18.61mg/L, average total nitrogen content is 40.52mg/L, and total phosphorus content 4.84mg/L is handled, and water outlet COD content is
26.7mg/L, ammonia-nitrogen content 2.4mg/L, total nitrogen content 13.8mg/L, total phosphorus content 0.3mg/L reach《Town sewage
Treatment plant's pollutant emission standard》The level-one A standard of (GB 18918-2002).
Embodiment 2
A kind of modified form A2The sewage disposal system of O technique, including coarse rack well, the fine fack well, anaerobism being sequentially communicated
Pond, anoxic pond, aerobic tank and secondary settling tank, the anaerobic pond is inoculated with the anaerobic sludge through taming, excellent in the anaerobic sludge
Gesture bacterium bag include Anammox bacteria, Anaerolinea, Bifidobacterium, Clostridium,
Methanogenus, Moraxella, Serratia marcescens, Phycisphaerae and Flavobacteriales, institute
Stating Anammox bacteria includes Candidatus Kuenenia, Candidatus Brocadia, Anammoxoglobus
Propionicus can carry out Anammox reaction, be equipped with exhaust outlet at the top of the anaerobic pond, the aerobic tank is detested with described
It is provided with interior backflow mixed liquor pipeline between oxygen pond, nitrification liquid is made to flow back, the reflux ratio of interior reflux is 400%, the secondary settling tank
Exteenal reflux sludge pipe is provided between the anaerobic pond, the reflux ratio of exteenal reflux is 160%, and the secondary settling tank is additionally provided with
Excess sludge discharge outlet.And Bio-electro reactor is equipped in aerobic tank and anoxic pond, anode uses the copper electrode of tubular,
One layer of bonding can radiate the charcoal of 6~14 mum wavelength far infrareds in tubular, be located in aerobic tank, and cathode uses graphite carbon felt
Electrode, the fixed denitrifying bacterium biomembrane in surface, is located in anoxic pond, and anode and cathode passes through the external resistance box of copper conductor respectively,
Closed circuit is formed, electrode voltage is 1~3V, 300~700mA/cm of current density2.The anaerobic pond, anoxic pond, aerobic tank
Hydraulic detention time be respectively：2h,2h,8h.
In the present embodiment, average COD content is 312.5mg/L in municipal sewage water inlet, and average ammonia-nitrogen content is 33.7mg/
L, average total nitrogen content is 40.8mg/L, and total phosphorus content 5.9mg/L is handled, and water outlet COD content is 30.1mg/L, ammonia nitrogen
Content is 2.6mg/L, and total nitrogen content 11.5mg/L, total phosphorus content 0.2mg/L reach《Urban wastewater treatment firm pollutant
Discharge standard》The level-one A standard of (GB 18918-2002).
Embodiment 3
A kind of modified form A2The sewage disposal system of O technique, including coarse rack well, the fine fack well, anaerobism being sequentially communicated
Pond, anoxic pond, aerobic tank and secondary settling tank, the anaerobic pond is inoculated with the anaerobic sludge through taming, excellent in the anaerobic sludge
Gesture bacterium bag include Anammox bacteria, Anaerolinea, Bifidobacterium, Clostridium,
Methanogenus, Moraxella, Serratia marcescens, Phycisphaerae and Flavobacteriales, institute
Stating Anammox bacteria includes Candidatus Jettenia, Candidatus Brocadia, Scalindua, can be into
The reaction of row Anammox, the anaerobic pond top are equipped with exhaust outlet, are provided between the aerobic tank and the anaerobic pond interior
Backflow mixed liquor pipeline, makes nitrification liquid flow back, and the reflux ratio of interior reflux is 500%, between the secondary settling tank and the anaerobic pond
It is provided with exteenal reflux sludge pipe, the reflux ratio of exteenal reflux is 200%, and the secondary settling tank is additionally provided with excess sludge discharge outlet.
And Bio-electro reactor is equipped in aerobic tank and anoxic pond, anode uses the Ti electrode of tubular, one layer of bonding in tubular
The far-infrared ceramic of the far infrared of 6~14 mum wavelengths can be radiated, is located in aerobic tank, cathode uses carbon cloth electrode, and surface is solid
Determine denitrifying bacterium biomembrane, be located in anoxic pond, anode and cathode passes through the external resistance box of copper conductor respectively, and formation is closed back
Road, electrode voltage are 3~5V, 700~1000mA/cm of current density2.The anaerobic pond, anoxic pond, aerobic tank hydraulic retention
Time is respectively：2h,2h,8h.
In the present embodiment, average COD content is 228.7mg/L in municipal sewage water inlet, and average ammonia-nitrogen content is 30.5mg/
L, average total nitrogen content is 39.2mg/L, and total phosphorus content 7.8mg/L is handled, and water outlet COD content is 26.5mg/L, ammonia nitrogen
Content is 1.9mg/L, and total nitrogen content 10.5mg/L, total phosphorus content 0.2mg/L reach《Urban wastewater treatment firm pollutant
Discharge standard》The level-one A standard of (GB 18918-2002).
Claims (10)
1. a kind of modified form A2The sewage disposal system of O technique, which is characterized in that including coarse rack well, the fine fack being sequentially communicated
Well, anaerobic pond, anoxic pond, aerobic tank and secondary settling tank, the anaerobic pond are inoculated with the anaerobic sludge through taming, can carry out anaerobism ammonia
Oxidation reaction, the anaerobic pond top are equipped with exhaust outlet, and interior reflux is provided between the aerobic tank and the anaerobic pond and is mixed
Liquid pipe road, makes nitrification liquid flow back, and the reflux ratio of interior reflux is 300%~500%, sets between the secondary settling tank and the anaerobic pond
It is equipped with exteenal reflux sludge pipe, the reflux ratio of exteenal reflux is 120%~200%, and the secondary settling tank is additionally provided with excess sludge row
Put mouth.
2. sewage disposal system according to claim 1, which is characterized in that the dominant bacteria in the anaerobic sludge includes：
Anammox bacteria、Anaerolinea、Bifidobacterium、Clostridium、Methanogenus、
Moraxella, Serratia marcescens, Phycisphaerae and Flavobacteriales.
3. sewage disposal system according to claim 2, which is characterized in that the Anammox bacteria includes：
Candidatus Kuenenia、Candidatus Jettenia、Candidatus Brocadia、Scalindua、
One of Anammoxoglobus propionicus or a variety of.
4. sewage disposal system according to claim 1, which is characterized in that it further include Bio-electro reactor, it is described
The anode of Bio-electro reactor is located in aerobic tank, and cathode is located in anoxic pond, the fixed denitrifying bacterium biology of cathode surface
Film, anode and cathode pass through the external resistance box of copper conductor respectively, form closed circuit.
5. sewage disposal system according to claim 4, which is characterized in that the electricity of the Bio-electro reactor electrode
Pressure is 0.5~5V, 150~1000mA/cm of current density2。
6. sewage disposal system according to claim 4, which is characterized in that the anode be one of nickel, copper, titanium,
The cathode is one of carbon cloth, graphite carbon felt, activated carbon fibre.
7. sewage disposal system according to claim 4, which is characterized in that the anode is tubular structure, is glued in tubular
Unify layer far infrared irradiation ore, the far infrared wavelength of transmitting is 6~14 μm.
8. sewage water treatment method according to claim 7, which is characterized in that the far infrared irradiation mineral selection is certainly biological
One of charcoal, jade, far-infrared ceramic are a variety of.
9. sewage water treatment method according to claim 1, which is characterized in that connection aeration pump exposes outside the aerobic tank
Gas, dissolved oxygen control is between 0.8~1.5mg/L in aerobic tank.
10. described in any item sewage water treatment methods according to claim 1~9, which is characterized in that the anaerobic pond, anoxic pond,
The hydraulic detention time of aerobic tank is respectively：2h,2h,8h.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109368928A (en) * | 2018-11-21 | 2019-02-22 | 杭州宸祥环境工程有限公司 | A kind of dephosphorization denitrogenation devices and methods therefor based on short-cut denitrification reaction |
| CN110845091A (en) * | 2019-12-22 | 2020-02-28 | 上海康恒环境股份有限公司 | Microbial electrolysis cell-membrane bioreactor combined treatment device for treating landfill leachate and treatment method thereof |
| CN114014441A (en) * | 2021-11-29 | 2022-02-08 | 同济大学 | Method for rapidly improving activity and abundance of anaerobic ammonium oxidation bacteria by adding redox active biochar |
| CN114349161A (en) * | 2022-01-17 | 2022-04-15 | 郑州轻工业大学 | Method for rapidly starting anaerobic ammonia oxidation by using waste sludge |
-
2018
- 2018-06-29 CN CN201810693054.9A patent/CN108862840A/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109368928A (en) * | 2018-11-21 | 2019-02-22 | 杭州宸祥环境工程有限公司 | A kind of dephosphorization denitrogenation devices and methods therefor based on short-cut denitrification reaction |
| CN110845091A (en) * | 2019-12-22 | 2020-02-28 | 上海康恒环境股份有限公司 | Microbial electrolysis cell-membrane bioreactor combined treatment device for treating landfill leachate and treatment method thereof |
| CN114014441A (en) * | 2021-11-29 | 2022-02-08 | 同济大学 | Method for rapidly improving activity and abundance of anaerobic ammonium oxidation bacteria by adding redox active biochar |
| CN114349161A (en) * | 2022-01-17 | 2022-04-15 | 郑州轻工业大学 | Method for rapidly starting anaerobic ammonia oxidation by using waste sludge |
| CN114349161B (en) * | 2022-01-17 | 2022-10-14 | 郑州轻工业大学 | Method for rapidly starting anaerobic ammonia oxidation by using waste sludge |
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