CN1278957C - Air lifting deep water type oxidizing tank - Google Patents
Air lifting deep water type oxidizing tank Download PDFInfo
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- CN1278957C CN1278957C CN 200510008928 CN200510008928A CN1278957C CN 1278957 C CN1278957 C CN 1278957C CN 200510008928 CN200510008928 CN 200510008928 CN 200510008928 A CN200510008928 A CN 200510008928A CN 1278957 C CN1278957 C CN 1278957C
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- Prior art keywords
- aeration
- zone
- sewage
- oxidation ditch
- oxidizing tank
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 48
- 230000001590 oxidative effect Effects 0.000 title claims abstract description 24
- 238000005273 aeration Methods 0.000 claims abstract description 54
- 239000010865 sewage Substances 0.000 claims abstract description 29
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 17
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 13
- 239000001301 oxygen Substances 0.000 claims abstract description 13
- 238000005192 partition Methods 0.000 claims abstract description 13
- 239000010802 sludge Substances 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 10
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 9
- 230000003647 oxidation Effects 0.000 claims description 39
- 238000007254 oxidation reaction Methods 0.000 claims description 39
- 241000894006 Bacteria Species 0.000 claims description 16
- 230000000694 effects Effects 0.000 claims description 15
- 238000009395 breeding Methods 0.000 claims description 5
- 230000001488 breeding effect Effects 0.000 claims description 5
- 244000005700 microbiome Species 0.000 claims description 5
- 238000011144 upstream manufacturing Methods 0.000 claims description 5
- 230000000153 supplemental effect Effects 0.000 claims description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract description 13
- 239000011574 phosphorus Substances 0.000 abstract description 13
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 10
- 238000010992 reflux Methods 0.000 abstract description 6
- 206010002660 Anoxia Diseases 0.000 abstract description 2
- 241000976983 Anoxia Species 0.000 abstract description 2
- 206010021143 Hypoxia Diseases 0.000 abstract description 2
- 230000007953 anoxia Effects 0.000 abstract description 2
- 230000015556 catabolic process Effects 0.000 abstract description 2
- 238000006731 degradation reaction Methods 0.000 abstract description 2
- 238000004043 dyeing Methods 0.000 abstract description 2
- 238000007639 printing Methods 0.000 abstract description 2
- 238000005276 aerator Methods 0.000 abstract 1
- 239000003344 environmental pollutant Substances 0.000 abstract 1
- 231100000719 pollutant Toxicity 0.000 abstract 1
- 238000003307 slaughter Methods 0.000 abstract 1
- 239000002351 wastewater Substances 0.000 description 10
- 229920000388 Polyphosphate Polymers 0.000 description 8
- 229920000037 Polyproline Polymers 0.000 description 8
- 239000001205 polyphosphate Substances 0.000 description 8
- 235000011176 polyphosphates Nutrition 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 5
- 238000005265 energy consumption Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910002651 NO3 Inorganic materials 0.000 description 2
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 2
- 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 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000001727 in vivo Methods 0.000 description 2
- 239000011259 mixed solution Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- WHBMMWSBFZVSSR-UHFFFAOYSA-N 3-hydroxybutyric acid Chemical compound CC(O)CC(O)=O WHBMMWSBFZVSSR-UHFFFAOYSA-N 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical class OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000005261 decarburization Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000012851 eutrophication Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 1
- 230000003834 intracellular effect Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 229920000137 polyphosphoric acid Polymers 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
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- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The present invention discloses an air lifting deep water type oxidizing tank which belongs to the technical field of water treatment. The oxidizing tank enclosed by outer tank walls through a partition wall and baffles is divided into two symmetrical parts by the partition wall, and two aeration zones are arranged in the air lifting deep water type oxidizing tank, wherein each aeration zone is divided into labyrinthine passages by the baffles, and an air inlet pipe as an aerator is arranged in each aeration zone, so that the degradation rate of pollutants can be improved. Multiple stages of aeration is adopted to improve dissolved oxygen concentration in sewage, so that an anaerobic zone, an anoxia zone and an aerobic zone in the oxidizing tank alternately run to improve the nitrogen and phosphorus removal efficiency of the sewage so as to meet new sewage discharge standards. The air lifting deep water type oxidizing tank has the advantages of sludge reflux, no other refluxing device, low power consumption, lower operation cost than that of a traditional process, small occupation area, simple device, low capital cost, simple process and convenient operation management and is suitable for the treatment of domestic sewage in small towns and high concentrated organic sewage in printing and dyeing industry, paper-making industry, slaughtering industry, etc.
Description
Technical field
The invention belongs to water-treatment technology field, be particularly related to and can be used for the small town sewage processing, be used to print and dye, papermaking, butcher etc. that the high concentrated organic wastewater of industry handles, have the less energy-consumption of denitrogenation dephosphorizing function, a kind of air lifting deep water type oxidizing tank of efficient, novel water treatment.
Background technology
Since the seventies in 20th century, body eutrophication problem outstanding day by day, the water-quality guideline system is constantly strict, makes the denitrogenation of waste water dephosphorization become the focus of widely paying close attention in the water pollution control.Yet traditional biological carbon and phosphorous removal technology has been difficult to satisfy existing water conditioning requirement, presses for to develop denitrification dephosphorization technique novel, efficient, less energy-consumption.
In traditional wastewater biological denitrificaion is handled, mainly be by nitrifier under aerobic condition with waste water in ammonia-state nitrogen be converted into nitric nitrogen or nitrite nitrogen, then under anoxia condition, utilize denitrifying bacteria that nitric nitrogen and nitrite nitrogen are reduced to nitrogen and from waste water, overflow, thereby reach the purpose of denitrogenation.Handle as for biological phosphate-eliminating, then be to utilize the activity of polyP bacteria in aerobic environment, when making full use of matrix, the orthophosphoric acid salt of a large amount of solubilised state of picked-up from waste water, synthetic polyphosphoric acid salt as ring-type, linear structure is realized phosphorus enrichment (promptly poly-phosphorus process) in vivo.If these microorganisms that absorb a large amount of phosphorus are removed from waste water, can reach the purpose of dephosphorization.In this denitrogenation dephosphorizing process, exist substrate competition between denitrifying bacteria and the polyP bacteria, also have different growth cycle (being mud difference in age) simultaneously, thereby the efficient of denitrogenation dephosphorizing is reduced, water treatment effect is relatively poor.Experimental study shows, utilizes the alternate run of anaerobism, anoxic and the aerobic zone of oxidation ditch then can address this problem effectively.
Air lifting deep water type oxidizing tank has carried out technological improvement with traditional oxidation ditch, it integrates anaerobic-anoxic-aerobic multistage biological respinse, make various biomasses have different activity at different reaction zones, realize removal effectively, thereby possess the good removal COD and the function of denitrogenation dephosphorizing all contaminations in the waste water.The present invention adopts the air lifting deep water aeration, makes dissolved oxygen content increase in the waste water, can effectively improve the removal efficient of organic pollutant.Except that mud refluxes, there is not other refluxing unit, power consumption is low, and running cost is lower than traditional technology.
Summary of the invention
The purpose of this invention is to provide a kind of air lifting deep water type oxidizing tank, the aeration tank that described deep water type oxidizing tank is made up of outer furrow bank, partition wall, baffle plate and aerating apparatus, it is characterized in that: it is two parts symmetrical that the oxidation ditch that outer furrow bank 13 is surrounded by partition wall 4 and baffle plate 1,2 and 3 is separated into the partition wall, place a plurality of aeration sections at interval in the oxidation ditch, each aeration section is provided with 5 two aeration zones in first aeration zone 9 and second aeration zone; In the aeration zone, be separated into labyrinth passage 14 by baffle plate 1,2 and 3, the inlet pipe 10 of making aerating apparatus is installed respectively in each aeration zone, a sidewall of oxidation ditch is provided with water-in 12 and water outlet 11, sewage enters in the oxidation ditch from water-in 12, in oxidation ditch, along with treating processes and water (flow) direction form aerobic zone 6, oxygen-starved area 7 and anaerobic zone 8 from right to left, under the effect of different microorganisms bacterium colony, make organism, N, P in the sewage obtain removing, and can suppress hyphomycetic breeding, overcome sludge bulking; Air enters from bottom of trench in the aeration zone, rises to the water surface from bottom of trench; In air lifting deep water type oxidizing tank, the aerating apparatus of first aeration zone 9 is between baffle plate 1 and baffle plate 2, its effect is when providing dissolved oxygen to sewage, utilize upstream to cause the density of water to descend, drive on the whole current direction and flow, thereby become the propulsion source that whole oxidation ditch moves.The effect of second aeration zone 5 is to prevent sludge settling, and can adjust its aeration rate according to the running condition of oxidation ditch, the dissolved oxygen that the operation of supplemental ditch is required.
The invention has the beneficial effects as follows and adopt the air lifting deep water aeration, improve dissolved oxygen concentration in the sewage, thereby can improve the degradation rate of pollutent; Adopt multistage subregion aeration to make anaerobism, anoxic and the aerobic zone alternate run of oxidation ditch, the denitrogenation dephosphorizing efficient of raising sewage is to satisfy new sewage drainage standard.Simultaneously, air lifting deep water type oxidizing tank provided by the invention is littler than the floor space of conventional oxidation ditch, equipment is simple, capital cost is low, technology is simple and direct, operational management is convenient.The volumetric loading of this oxidation ditch can reach more than the 4000mg/L, and nitric efficiency is higher by 20～30% than general oxidation ditch, and dephosphorization efficiency by using is high by 15～25%, and effluent quality can reach first discharge standard.A kind of treatment facility of high-efficiency low energy consumption is provided for small town sewage and printing and dyeing, papermaking, the high concentrated organic wastewater of industry such as butchering.
Description of drawings
Fig. 1 is the theory structure synoptic diagram of air lifting deep water type oxidizing tank.
Fig. 2 is the A-A sectional view.
Embodiment
The invention provides a kind of air lifting deep water type oxidizing tank.In Fig. 1, structure shown in Figure 2, it is two parts symmetrical that the oxidation ditch that outer furrow bank 13 is surrounded by partition wall 4 and baffle plate 1,2 and 3 is separated into the partition wall, first aeration zone 9 and second aeration zone 5 are set in every part, in the aeration zone, be separated into labyrinth passage 14 by baffle plate 1,2 and 3, the inlet pipe 10 of making aerating apparatus is installed respectively in each aeration zone, a sidewall of oxidation ditch is provided with water-in 12 and water outlet 11, sewage enters in the oxidation ditch from water-in 12, air enters from bottom of trench in the aeration zone, rises to the water surface from bottom of trench; Place a plurality of aeration sections at interval in the oxidation ditch, each aeration section is divided into two aeration zones; In air lifting deep water type oxidizing tank, the aerating apparatus of first aeration zone 9 is between baffle plate 1 and baffle plate 2, its effect is when providing dissolved oxygen to sewage, utilize upstream to cause the density of water to descend, drive on the whole current direction and flow, thereby become the propulsion source that whole oxidation ditch moves.Second aeration zone 5 the purpose of this invention is to provide a kind of air lifting deep water type oxidizing tank, the aeration tank that described deep water type oxidizing tank is made up of outer furrow bank, partition wall, baffle plate and aerating apparatus, it is characterized in that: it is two parts symmetrical that the oxidation ditch that outer furrow bank 13 is surrounded by partition wall 4 and baffle plate 1,2 and 3 is separated into the partition wall, place a plurality of aeration sections at interval in the oxidation ditch, each aeration section is provided with 5 two aeration zones in first aeration zone 9 and second aeration zone; In the aeration zone, be separated into labyrinth passage 14 by baffle plate 1,2 and 3, the inlet pipe 10 of making aerating apparatus is installed respectively in each aeration zone, a sidewall of oxidation ditch is provided with water-in 12 and water outlet 11, sewage enters in the oxidation ditch from water-in 12, in oxidation ditch, along with treating processes and water (flow) direction form aerobic zone 6, oxygen-starved area 7 and anaerobic zone 8 from right to left, under the effect of different microorganisms bacterium colony, make organism, N, P in the sewage obtain removing, and can suppress hyphomycetic breeding, overcome sludge bulking; Air enters from bottom of trench in the aeration zone, rises to the water surface from bottom of trench; In air lifting deep water type oxidizing tank, the aerating apparatus of first aeration zone 9 is between baffle plate 1 and baffle plate 2, its effect is when providing dissolved oxygen to sewage, utilize upstream to cause the density of water to descend, drive on the whole current direction and flow, thereby become the propulsion source that whole oxidation ditch moves.The aerating apparatus of second aeration zone 5 is positioned at the left side of baffle plate 3, under the effect of upstream, prevents sludge settling, and can adjust its aeration rate according to the running condition of oxidation ditch, the dissolved oxygen that the operation of supplemental ditch is required.
At anaerobic zone: under anaerobic, facultative bacteria in the sewage changes into low molecule tunning with solvability BOD, biological polyP bacteria is with these low molecule tunnings of preferentially adsorbed, and it is transported in the cell, with changing into born of the same parents' internal carbon source storage thing, discharge phosphatic polyP bacteria through anaerobic state and can under follow-up good oxygen condition, have very strong suction phosphorus ability, the phosphorus amount that absorb, storage exceeds the growth demand, and synthetic new polyP bacteria cell, produce rich phosphorus sludge, phosphorus is removed from system by the discharging of excess sludge.
In the oxygen-starved area: muddy water mixed solution enters the oxygen-starved area by anaerobic zone, part polyP bacteria utilizes the final electron acceptor(EA) of the middle nitrate conduct of the mixed solution (internal reflux brings) of subsequent technique to decompose intracellular PHB (poly-β hydroxybutyric acid), the energy that produces is used for the absorption of phosphorus and synthesizing of poly-phosphorus, the nitrate that the while denitrifying bacteria utilizes internal reflux to bring, and biodegradable organism carries out denitrification in the sewage, reaches the purpose of part decarburization and denitration, dephosphorization.
At aerobic zone: air lifting deep water type oxidizing tank has the push flowing and the characteristic of mixed type reaction tank fully concurrently, and finishing the required time that once circulates is 5～20min, and total residence time is very long.At oxidation ditch aerobic zone polyP bacteria except absorbing, utilizing the biodegradable organic in the sewage, mainly be the PHB that stores up in the decomposer, the energy that produces can be for self growth and breeding, but the dissolved phosphorus in the active absorption surrounding environment in addition, and with the form of poly-phosphorus in vivo excess store up.In excess sludge, contain the polyP bacteria of the poly-phosphorus of a large amount of energy excess, so improved the phosphor-removing effect of oxidation ditch system greatly.
This oxidation ditch aerobic zone adopts the air lifting deep water aeration, improves the dissolved oxygen concentration in the sewage effectively; And adopt multistage subregion gas distribution, and can control dissolved oxygen concentration and sewage neatly in each sectional residence time, this is that the conventional oxidation ditch is not available.Thereby the effective alternate run of aerobic, the anoxic of controlled oxidation ditch and anaerobic zone, make sewage in the process in the anaerobism of flowing through, anoxic, aerobic three difference in functionality districts, under the effect of different microorganisms bacterium colony, make organism, N, P in the sewage obtain removing, and can suppress hyphomycetic breeding, overcome sludge bulking.Find in the research that the volumetric loading of this oxidation ditch can reach more than the 4000mg/L, nitric efficiency is higher by 20～30% than general oxidation ditch, and dephosphorization efficiency by using is high by 15～25%, and effluent quality can reach first discharge standard.
It is as follows that we utilize air lifting deep water type oxidizing tank that the sanitary sewage in certain living quarters is carried out result:
| COD | SS | NH 3-N | TP | pH | TN | BOD | |
| Water inlet (mg/L) | 300 | 200 | 40 | 5 | 6-8 | 50 | 130 |
| Water outlet (mg/L) | 60 | 20 | 14 | 1 | 6.5-7.5 | 20 | 13 |
| Processing efficiency (%) | 80 | 90 | 65 | 80 | ---- | 60 | 90 |
Claims (1)
1. air lifting deep water type oxidizing tank, the aeration tank that described deep water type oxidizing tank is made up of outer furrow bank, partition wall, baffle plate and aerating apparatus is characterized in that: it is two parts symmetrical that the oxidation ditch that outer furrow bank (13) is surrounded by partition wall (4) and baffle plate (1), (2) and (3) is separated into the partition wall; Place a plurality of aeration sections in the oxidation ditch at interval, (5) two aeration zones in first aeration zone (9) and second aeration zone are set in each aeration section, in the aeration zone by baffle plate (1), (2) and (3) be separated into labyrinth passage (14), the inlet pipe (10) of making aerating apparatus is installed respectively in each aeration zone, a sidewall of oxidation ditch is provided with water-in (12) and water outlet (11), sewage enters in the oxidation ditch from water-in (12), in oxidation ditch, along with treating processes and water (flow) direction form aerobic zone (6) from right to left, oxygen-starved area (7) and anaerobic zone (8), under the effect of different microorganisms bacterium colony, make the organism in the sewage, N, P obtains removing, and can suppress hyphomycetic breeding, overcome sludge bulking; Air enters from bottom of trench in the aeration zone, rises to the water surface from bottom of trench; In air lifting deep water type oxidizing tank, the aerating apparatus of first aeration zone (9) is positioned between baffle plate (1) and the baffle plate (2), its effect is when providing dissolved oxygen to sewage, utilize upstream to cause the density of water to descend, drive on the whole current direction and flow, thereby become the propulsion source that whole oxidation ditch moves; The effect of second aeration zone (5) is to prevent sludge settling, and can adjust its aeration rate according to the running condition of oxidation ditch, the dissolved oxygen that the operation of supplemental ditch is required.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510008928 CN1278957C (en) | 2005-02-25 | 2005-02-25 | Air lifting deep water type oxidizing tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510008928 CN1278957C (en) | 2005-02-25 | 2005-02-25 | Air lifting deep water type oxidizing tank |
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| Publication Number | Publication Date |
|---|---|
| CN1693235A CN1693235A (en) | 2005-11-09 |
| CN1278957C true CN1278957C (en) | 2006-10-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510008928 Expired - Fee Related CN1278957C (en) | 2005-02-25 | 2005-02-25 | Air lifting deep water type oxidizing tank |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100335425C (en) * | 2006-01-26 | 2007-09-05 | 宜兴市凌志环保有限公司 | High denitrification shared type oxidation ditch |
| CN100402448C (en) * | 2006-09-27 | 2008-07-16 | 山东贵和显星纸业股份有限公司 | Paper-making effluent purifying treatment process |
| CN102050544B (en) * | 2009-11-02 | 2014-11-05 | 中石化宁波工程有限公司 | Treatment method for high-concentration organic wastewater and device used thereby |
| CN102001790B (en) * | 2010-11-19 | 2014-07-30 | 赵若云 | Upflow type oxidation ditch organic waste water treatment method |
| CN102951731B (en) * | 2012-11-12 | 2015-03-04 | 清华大学 | Airlift oxidation ditch type membrane bioreactor |
| CN105668929B (en) * | 2016-03-04 | 2019-03-01 | 苏州苏沃特环境科技有限公司 | A kind for the treatment of of dyeing wastewater and the technological system of reuse |
| CN112661267A (en) * | 2020-12-18 | 2021-04-16 | 张华� | Single-power sewage treatment system and sewage treatment tank thereof |
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2005
- 2005-02-25 CN CN 200510008928 patent/CN1278957C/en not_active Expired - Fee Related
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| CN1693235A (en) | 2005-11-09 |
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