CN205710309U - A kind of improvement hypoxemia multistage A/O multiple spot joins bacterium equipment - Google Patents
A kind of improvement hypoxemia multistage A/O multiple spot joins bacterium equipment Download PDFInfo
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- CN205710309U CN205710309U CN201620365448.8U CN201620365448U CN205710309U CN 205710309 U CN205710309 U CN 205710309U CN 201620365448 U CN201620365448 U CN 201620365448U CN 205710309 U CN205710309 U CN 205710309U
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- denitrifying bacterium
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Abstract
The utility model discloses a kind of improvement hypoxemia multistage A/O multiple spot and join bacterium equipment, including setting pot, biological tank, second pond, sludge aeration pond and denitrifying bacterium selector, described setting pot is connected with biological tank, denitrifying bacterium selector, described biological tank is connected with second pond, described second pond is connected with sludge aeration pond, described sludge aeration pond is connected with denitrifying bacterium selector, and described denitrifying bacterium selector is connected with sedimentation basin, and described sedimentation basin is connected with biological tank.Compared with prior art, the beneficial effects of the utility model are: total nitrogen removal efficiency can reach more than 98%；Multiple spot joins bacterium, effectively improves nitric efficiency, meets the use demand of client, it is simple to industrially promotion and application.
Description
Technical field
The utility model relates to bacterial classification and cultivates and join bacterium equipment technical field, particularly relates to a kind of improvement hypoxemia multistage A/O multiple spot and joins bacterium equipment.
Background technology
With improving constantly of industrialization and urbanization degree, synthetic detergent, chemical fertilizer and agricultural chemicals are increasingly widely used.A large amount of nitrogen elements enter water body, make body eutrophication day by day serious, in water body containing a large amount of nitrogen elements, algae raised growth, not only affect the existence of aqueous bio, and caused multiple disease, having the mankind, wild animal, plant etc. affects significantly, and the ecological disruption to natural water also result in serious harm.Therefore, country starts to formulate increasingly strict sewage drainage standard, and this means that has higher requirement to newly-built and built sewage treatment plant.New environmental law and the promulgation of ten, water, propose new requirement for the whole nation " 13 " period water prevention and cure of pollution work.Overproof water quality is per diem counted and is penalized and investigate charges and can be rated as in history the tightest, and the promulgation of Tianjin four class water body new landmark improves again a class sewage disposal plant effluent water standard.
Comparing bio-denitrification technology with other denitrogenation technology has very strong advantage relative to the denitrogenation technology of additive method.Wherein most typically AAO and series connection AO technique.As it is shown in figure 1, typical case AAO realizes biological denitrificaion by the anoxic section that is back to of aerobic section end nitrification liquid.The nitrogen removal rate of this technique is by the flow of inside and outside capacity of returns, general internal reflux ratio r (capacity of returns/inflow) is 300%, and when external reflux ratio R (exteenal reflux amount/inflow) is 100%, total nitrogen maximum material removal rate is: E0=(R+r)/(R+r+1)=80%；As shown in Figure 2, inlet segment is divided into several by typical series AO technique, carbon source in each section of water inlet is for completing the denitrification of nitrate nitrogen the last period, as a example by four-section water-feeding, averagely every section water inlet 25%, for reducing total nitrogen abandonment rate, 4th section can suitably be reduced water distribution ratio, but in order to ensure to carry out nitrate nitrogen the last period abundant denitrification, also unsuitable very few, it typically is advisable with 20%.In the case that operation control is optimal, assuming that the total nitrogen of first three section is all removed by 100%, the total nitrogen abandonment rate of technique to second pond import is 20%, in the case that reflux ratio is 100%, overall total nitrogen abandonment rate is 10%, i.e. the highest clearance of the total nitrogen of this technique is 90%.
Traditional biological denitrification process existence some shortcomings following:
(1) maximum nitrogen removal rate is 90%, limits even if additional carbon is still difficult to break through this: if water inlet TN=70 water outlet TN >=7 are difficult to ensure that stable TN≤10.
(2) connect the anoxic of many times of AO, the aerobic decline alternately causing total tp removal rate.
(3) other techniques are such as: SBR, CASS, oxidation ditch, and MBR etc. uses the biological denitrification process of activated sludge process to be all difficult to break through: η TNmax≤90%.
(4) end denitrogenation technology must additional carbon, cost is high, and technological process is long and there is carbon source and adds the excessive material risk causing BOD, COD to exceed standard.
Traditional biological denitrification process also exists above inevitable defect, and with deepening continuously of research, new denitrogenation technology more and more attracts much attention, and has become as the focus of current research.And water business market low-price competition is fierce, it is achieved low cost is up to standard is the properly functioning the only way of sewage treatment plant.Therefore a kind of low cost of market in urgent need and the high bio-denitrification technology of nitric efficiency.
Utility model content
The purpose of this utility model is for technological deficiency present in prior art, and provides a kind of improvement hypoxemia multistage A/O multiple spot to join bacterium equipment.
nullFor realizing the purpose of this utility model，The utility model be the technical scheme is that a kind of improvement hypoxemia multistage A/O multiple spot joins bacterium equipment，Including setting pot、Biological tank、Second pond、Sludge aeration pond and denitrifying bacterium selector，Described setting pot and biological tank、Denitrifying bacterium selector connects，Described biological tank is connected with second pond，Described second pond is connected with sludge aeration pond，Described sludge aeration pond is connected with denitrifying bacterium selector，Described denitrifying bacterium selector is connected with biological tank，Described denitrifying bacterium selector includes denitrifying bacterium incubator and denitrifying bacterium separator，Denitrifying bacterium separator includes inner core and urceolus，Pipeline is passed through in the water outlet of the mud in sludge aeration pond and setting pot，It flow to denitrifying bacterium incubator according to a certain percentage to mix，Composite magnetic filler is set in denitrifying bacterium incubator，Mixed muddy water mixed solution is through composite magnetic filler，Mud is made to carry efficient denitrifying bacterium，Then，Entered the inner core of denitrifying bacterium separator by pipeline，From bottom to top overflow to urceolus and carry out precipitation and separation simultaneously，High concentration after separated enters biological tank rich in the mud of denitrifying bacterium by the road from described denitrifying bacterium separator bottom and carries out joining bacterium，Supernatant is back to biochemistry pool front end.
Wherein, described biological tank includes five sections, i.e. anaerobic-anoxic-oxic-anaerobic-aerobic, described denitrifying bacterium separator is connected with described anaerobism section and anoxic section, the supernatant of described denitrifying bacterium separator is back to biological tank anaerobism section, and denitrifying bacterium separator bottom sludge reflux to anoxic section carries out joining bacterium.
Wherein, comprising multiple deflection plate in described denitrifying bacterium incubator, multiple described deflection plates constitute upper and lower circuitous configuration, and sewage forms upper and lower roundabout current by described circuitous configuration.
Wherein, it in described each circuitous configuration of denitrifying bacterium incubator, is equipped with composite magnetic filler, form resultant field and magnetic invigoration effect is produced for the mud flowing through.
Wherein, described composite magnetic filler, is made up of special Miniature tube type electromagnet and ferrite magnetic particle filler, forms resultant field.
Compared with prior art, the beneficial effects of the utility model are: total nitrogen removal efficiency can reach more than 98%；Multiple spot joins bacterium, effectively improves nitric efficiency, meets the use demand of client, it is simple to industrially promotion and application.
Brief description
Fig. 1 show in conventional art typical case's AAO process schematic representation；
Fig. 2 show typical series AO process schematic representation in conventional art；
Fig. 3 show the utility model example structure schematic diagram；
Fig. 4 show structure first schematic diagram of the denitrifying bacterium selector that the utility model embodiment provides；
Fig. 5 show structure second schematic diagram of the denitrifying bacterium selector that the utility model embodiment provides；
Fig. 6 show structure the 3rd schematic diagram of the denitrifying bacterium selector that the utility model embodiment provides；
In figure, 1-enters pipe, 2-setting pot water inlet pipe, 3-composite magnetic filler, 4-inner core, 5-urceolus, 6-supernatant outlet pipe, 7-bacterial classification distribution pipe, 8-denitrifying bacterium incubator, 9-denitrifying bacterium separator through the mud of aeration.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.It should be appreciated that specific embodiment described herein, only in order to explain the utility model, is not used to limit the utility model.
Should be noted that, " connection " described herein and be used for expressing the word of " connection ", such as " being connected ", " being connected " etc., it both may refer to a certain parts and had been directly connected to another parts, it is also possible to refers to a certain parts and is connected with another parts by miscellaneous part.
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5, Fig. 6, my company is difficult to break through 90% for high cost and the nitric efficiency of standard biologic denitrification process, have developed a kind of improvement hypoxemia multistage A/O multiple spot and joins bacterium processing means.
The water outlet of the setting pot in the application enters biological tank and reacts, and biological tank is divided into five sections, i.e. anaerobic-anoxic-oxic-anaerobic-aerobic (A-A-O-A-O).Anaerobic stages, polyP bacteria discharges phosphorus, and absorbs the degradable organic matters such as lower fatty acid.Nitrate nitrogen is converted into nitrogen by denitrification by anoxic phases.Aerobic section, polyP bacteria excess absorbs phosphorus, and by the discharge of excess sludge, by phosphorus ligands, simultaneously through nitrification, by the synergy of nitrobacteria and nitrite bacteria, by denitrification, ammonia nitrogen is converted into nitrite nitrogen, nitrate nitrogen, and organics removal.Biological water outlet enters second pond and carries out precipitation reaction, and top clear water is directly entered discharge or enters aftertreatment device, these aftertreatment device, is not belonging to the protection content of the application, therefore, no longer describes in detail；The base sludge of 5-40% enters sludge aeration pond.Sludge aeration pond control LDO is set at about 0.5mg/l, for recovering the activity of denitrifying bacterium in second pond mud.In sludge aeration pond, the mud of reactant and setting pot water outlet are according to a certain percentage, the ratio of such as mud and water is 3 to 1, it is mixed into denitrifying bacterium incubator, composite magnetic filler is set in incubator, mud is under the effect of pump, through composite magnetic filler, mud is made to carry efficient denitrifying bacterium, mud mixture rich in denitrifying bacterium enters denitrifying bacterium separator inner core by pipeline, enter denitrifying bacterium separator urceolus in an overflow manner and carry out precipitation and separation simultaneously, high concentration after separated enters biological tank rich in the mud of denitrifying bacterium by the road from described denitrifying bacterium separator bottom and carries out joining bacterium, supernatant is back to biochemistry pool front end.
In a preferred embodiment, comprising multiple deflection plate in described denitrifying bacterium incubator, multiple described deflection plates constitute upper and lower circuitous configuration, and sewage forms upper and lower roundabout current by described circuitous configuration.
Wherein, it in described each circuitous configuration of denitrifying bacterium incubator, is equipped with composite magnetic filler, form resultant field and magnetic invigoration effect is produced for the mud flowing through.
This equipment is utilized to have the advantage that
(1) total nitrogen removal efficiency can reach more than 98%
(2) the biological carbon source in second pond mud is back to biochemistry pool, supplementary carbon source, cost-effective.
(3) multiple spot joins bacterium, effectively improves nitric efficiency
The above is only preferred embodiment of the present utility model; it should be noted that; for those skilled in the art; on the premise of without departing from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be regarded as protection domain of the present utility model.
Claims (5)
- null1. an improvement hypoxemia multistage A/O multiple spot joins bacterium equipment，It is characterized in that，Including setting pot、Biological tank、Second pond、Sludge aeration pond and denitrifying bacterium selector，Described setting pot and biological tank、Denitrifying bacterium selector connects，Described biological tank is connected with second pond，Described second pond is connected with sludge aeration pond，Described sludge aeration pond is connected with denitrifying bacterium selector，Described denitrifying bacterium selector is connected with biological tank，Described denitrifying bacterium selector includes denitrifying bacterium incubator and denitrifying bacterium separator，Denitrifying bacterium separator includes inner core and urceolus，Pipeline is passed through in the water outlet of the mud in sludge aeration pond and setting pot，It flow to denitrifying bacterium incubator according to a certain percentage to mix，Composite magnetic filler is set in denitrifying bacterium incubator，Mixed muddy water mixed solution is through composite magnetic filler，Mud is made to carry efficient denitrifying bacterium，Then，Entered the inner core of denitrifying bacterium separator by pipeline，From bottom to top overflow to urceolus and carry out precipitation and separation simultaneously，High concentration after separated enters biological tank rich in the mud of denitrifying bacterium by the road from described denitrifying bacterium separator bottom and carries out joining bacterium，Supernatant is back to biochemistry pool front end.
- 2. improvement hypoxemia multistage A/O multiple spot according to claim 1 joins bacterium equipment, it is characterized in that, described biological tank includes five sections, i.e. anaerobic-anoxic-oxic-anaerobic-aerobic, described denitrifying bacterium separator is connected with described anaerobism section and anoxic section, the supernatant of described denitrifying bacterium separator is back to biological tank anaerobism section, and denitrifying bacterium separator bottom sludge reflux to anoxic section carries out joining bacterium.
- 3. improvement hypoxemia multistage A/O multiple spot according to claim 1 joins bacterium equipment, it is characterized in that, comprising multiple deflection plate in described denitrifying bacterium incubator, multiple described deflection plates constitute upper and lower circuitous configuration, and sewage forms upper and lower roundabout current by described circuitous configuration.
- 4. improvement hypoxemia multistage A/O multiple spot according to claim 3 joins bacterium equipment, it is characterised in that in described each circuitous configuration of denitrifying bacterium incubator, be equipped with composite magnetic filler, forms resultant field and produces magnetic invigoration effect for the mud flowing through.
- 5. improvement hypoxemia multistage A/O multiple spot according to claim 4 joins bacterium equipment, it is characterised in that described composite magnetic filler, is made up of special Miniature tube type electromagnet and ferrite magnetic particle filler, forms resultant field.
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| CN201620365448.8U CN205710309U (en) | 2016-04-26 | 2016-04-26 | A kind of improvement hypoxemia multistage A/O multiple spot joins bacterium equipment |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108911405A (en) * | 2018-07-26 | 2018-11-30 | 华电水务控股股份有限公司 | A kind of biochemical cell system and technique using five sections of bioanalysis |
| CN110451728A (en) * | 2019-08-20 | 2019-11-15 | 上海市市政规划设计研究院有限公司 | A kind of multiple spot sludge exteenal reflux enhancing biological carbon and phosphorous removal group technology |
| CN112358118A (en) * | 2020-06-09 | 2021-02-12 | 青岛颐和水务有限公司 | Magnetic biological enhanced sewage treatment method |
-
2016
- 2016-04-26 CN CN201620365448.8U patent/CN205710309U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108911405A (en) * | 2018-07-26 | 2018-11-30 | 华电水务控股股份有限公司 | A kind of biochemical cell system and technique using five sections of bioanalysis |
| CN110451728A (en) * | 2019-08-20 | 2019-11-15 | 上海市市政规划设计研究院有限公司 | A kind of multiple spot sludge exteenal reflux enhancing biological carbon and phosphorous removal group technology |
| CN110451728B (en) * | 2019-08-20 | 2022-02-01 | 上海市市政规划设计研究院有限公司 | Multipoint sludge external reflux enhanced biological nitrogen and phosphorus removal combined process |
| CN112358118A (en) * | 2020-06-09 | 2021-02-12 | 青岛颐和水务有限公司 | Magnetic biological enhanced sewage treatment method |
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