CN205556234U - Synchronous nitrification and denitrification biological denitrogenation and get rid of organic waste water COD's device - Google Patents
Synchronous nitrification and denitrification biological denitrogenation and get rid of organic waste water COD's device Download PDFInfo
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- CN205556234U CN205556234U CN201620313016.2U CN201620313016U CN205556234U CN 205556234 U CN205556234 U CN 205556234U CN 201620313016 U CN201620313016 U CN 201620313016U CN 205556234 U CN205556234 U CN 205556234U
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- denitrification
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- organic wastewater
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Abstract
The utility model relates to a synchronous nitrification and denitrification biological denitrogenation and get rid of organic waste water COD's device, including the cell body, one side of cell body is equipped with the inlet tube, is equipped with the biological selection district in the one side that is close to the inlet tube in the cell body, is equipped with the next -door neighbour in the cell body the synchronous nitrification and denitrification biological reaction district in biological selection district is in the cell body the opposite side in biological selection district and synchronous nitrification and denitrification biological reaction district is equipped with slurry separation zone, and slurry separation zone's end is equipped with the outlet pipe. This device synchronous nitrification and denitrification biological denitrogenation and high efficiency are got rid of high concentration COD and are accomplished in same cell body, not only reduce the civilwork investment expense but also have reduced technology step, manufacturing equipment and operation workman's working strength. The utility model provides an effluent treatment plant compares with traditional waste water treatment technology, will hang down the dissolved oxygen control, high sludge concentration, nitrify the denitrification takes place biochemical reactions in same cell body high -efficiency processing device.
Description
Technical field
This utility model relates to a kind of synchronous nitration and denitrification biological denitrificaion and removes the dress of organic wastewater COD
Put.
Background technology
Ammonia nitrogen is the pollutant that country realizes water pollution control overall control, and in water body, the too high meeting of ammonia-nitrogen content is drawn
Playing Water Eutrophication, cause some algae excessive propagation in water body, other biological growth is affected, from
And destroy aquatic ecosystem, cause water quality deterioration and have influence on its use function.Ammonia-nitrogen sewage source ratio
Wide, discharge capacity is relatively big, and it is mainly derived from sanitary sewage, electroplating wastewater, paper waste, pharmacy are given up
Water, textile waste, slaughtering wastewater, petrochemical industry etc..Therefore, the most effectively remove Determination of Total Nitrogen in Waste Water and
The Organic substance of difficult degradation becomes an important directions in current water treatment procedure.
Currently for the process of nitrogenous organic wastewater, the most mostly select the treatment technology based on biochemical process,
Therefore, other method must be used it to be carried out pretreatment, to improve the biodegradability of waste water or to improve waste water
Biochemical character, makes waste water secondary biochemical treatment more effectively.This problem is by research Simultaneous Nitrification/denitrification
(StND) technology, investigates its biodegradability under different pH value, response time, different sludge concentrations
Impact, it is intended to explore the Biochemical pretreatment method of a kind of efficient and cost-effective, for engineering practice provide reference.
Simultaneous Nitrification/denitrification (StND)
Basic conception and principle: when aerobic environment exists in a reactor with anaerobic environment simultaneously, nitrification
Then it is referred to as Simultaneous Nitrification/denitrification (StND) with denitrification when carrying out in same reactor simultaneously.Nitre simultaneously
Change/denitrification is possible not only to occur in biofilm reactor, as fluid bed, BAF, biology turn
Dish；Can also occur in activated Sludge System, such as Aeration tank, oxidation ditch.But at present to StND phenomenon
Mechanism does not also have consistent explanation, it is considered that three dominant mechanisms are: 1. mixed style.Owing to oxygenation fills
The uneven structure reason with reactor of the oxygenation put, causes bioreactor form uneven, shape in reactor
Become hypoxic/anaerobic section.This kind of situation is referred to as the overall situation of biological respinse, i.e. macro environment.2. zoogloea or life
Thing film.Hypoxic/anaerobic section can be internally formed at activated sludge zoogloea or biomembrane, i.e. micro environment.3. give birth to
Thing chemical action.In the past few years, much new nitrogen biochemistry bacterium race is identified out, including
StND is worked by part strain with the form of forming a team, including playing the Autotrophic nitrification bacterium of Denitrification and playing nitrification
The heterotrophic bacteria of effect.
In production-scale bioreactor, the most uniform admixture does not exist.Inside zoogloea
Dissolved oxygen gradient the most extensively admitted, make the hypoxic/anaerobic environment realizing StND can be at zoogloea
It is internally formed.The StND produced due to biological chemistry action more essential meaning, it can make heterotrophic nitrification and
Aerobic denitrification is carried out simultaneously, thus the efficient denitrification under the conditions of realizing low-carbon-source.Simultaneous Nitrification/denitrifying
Activated Sludge System will be for simplifying bio-denitrification technology from now on and reducing investment and provide probability.
Tradition nitration denitrification denitrogenation technology, nitrification and denitrification remains the tool that is independent or that separate at two
Have in the reactor of different DO concentration and carry out, or in the time or spatially cause alternately anoxia and aerobic ring
Carrying out in the same reactor in border, a process is divided into two systems, and condition controls complexity, and both are difficult to
Unifying over time and space, denitrification effect is poor, and equipment is huge, investment height.Obviously, if two processes
Can carry out in same reactor simultaneously, then can save more floor space, also can avoid NO2-oxygen
Chemical conversion NO3And NO3It is then reduced into NO2The reaction that the two is unnecessary, thus the O of about 25% can be saved2With 40% with
On organic carbon；It addition, aerobic in microorganism nitrifying process, consumption basicity, without COD, and denitrification process
The most in contrast and mutually, anaerobism, produce basicity, substantial amounts of COD need to be consumed.So, if same instead
Answer and device realizes simultaneous nitrification-denitrification and reaches the kinetic balance of two processes, bioanalysis will be greatly simplified
The upper process flow of denitrogenation, improves the efficiency of biological denitrificaion, and reduces investment outlay.This just recent domestic be
Overcome the shortcoming of tradition thing denitrification process and the synchronous nitration and denitrification (StND) of actively research and development is raw
Thing denitrogenation new technique.
Utility model content
The utility model proposes a kind of synchronous nitration and denitrification biological denitrificaion and remove the dress of organic wastewater COD
Put, be directed to be difficult to the wastewater treatment equipment that the intensified denitrification and dephosphorization of high concentrated organic wastewater that processes is brand-new.
The brand-new breakthrough to original conventional processes of this processing means, in the environment of a relatively LDO,
In same cell body, there is the denitrification reaction of synchronous nitration and denitrification, the most efficiently remove the COD in water.
By the control of LDO height sludge age, at a high sludge concentration, under the service condition of high clearance,
The energy consumption making waste water process declines to a great extent.
The technical solution of the utility model is achieved in that
Synchronous nitration and denitrification biological denitrificaion and the device of removal organic wastewater COD, including cell body, described pond
The side of body is provided with water inlet pipe, is provided with biological selecting area in the side near described water inlet pipe in described cell body,
The synchronous nitration and denitrification bio-reaction zone being close to described biological selecting area it is provided with, described in described cell body
In cell body, the opposite side of described biological selecting area and described synchronous nitration and denitrification bio-reaction zone is provided with muddy water and divides
From district, the end in described mud-water separation district is provided with outlet pipe.
Further, it is provided with sludge reflux pump between described biological selecting area and described mud-water separation district.
Further, it is provided with swash plate in described mud-water separation district.
Further, in described mud-water separation district, described swash plate is arranged over clear water and collects canal.
Further, it is provided with aeration tube in described synchronous nitration and denitrification bio-reaction zone.
Further, it is provided with dissolved oxygen instrument in described synchronous nitration and denitrification bio-reaction zone.
Further, it is provided with excess sludge sludge pump in described synchronous nitration and denitrification bio-reaction zone.
The beneficial effects of the utility model are:
This device synchronous nitration and denitrification biological denitrificaion and efficiently removal high concentration COD are complete in same cell body
Become, build in a cell body, not only reduce construction investment expense but also decrease processing step, process equipment
Working strength with operator.The wastewater treatment equipment of present invention offer and traditional wastewater processing technology phase
Ratio, occurs efficient in same cell body by the control of LDO, high sludge concentration, nitration denitrification
Biochemical reaction, the conversion process shortening denitrogenation under room temperature combines, be one subversive, brand-new
Water treatment facilities.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below by right
In embodiment or description of the prior art, the required accompanying drawing used is briefly described, it should be apparent that below,
Accompanying drawing in description is only embodiments more of the present utility model, for those of ordinary skill in the art,
On the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the synchronous nitration and denitrification biological denitrificaion described in this utility model embodiment and removes organic wastewater
The structural representation of the device of COD；
Fig. 2 is the A-A ' profile of Fig. 1；
Fig. 3 is the B-B ' profile of Fig. 1；
Fig. 4 is the synchronous nitration and denitrification biological denitrificaion described in this utility model embodiment and removes organic wastewater
The process chart of the device of COD.
In figure:
1, cell body；2, water inlet pipe；3, biological selecting area；4, synchronous nitration and denitrification bio-reaction zone；5、
Mud-water separation district；6, outlet pipe；7, sludge reflux pump；8, swash plate；9, clear water collects canal；10, expose
Trachea；11, dissolved oxygen instrument；12, excess sludge sludge pump.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, to the technical side in this utility model embodiment
Case is clearly and completely described, it is clear that described embodiment is only that this utility model part is real
Execute example rather than whole embodiments.Based on the embodiment in this utility model, ordinary skill people
The every other embodiment that member is obtained under not making creative work premise, broadly falls into this utility model
The scope of protection.
As Figure 1-3, synchronous nitration and denitrification biological denitrificaion and removal described in this utility model embodiment have
The device of machine waste water COD, including cell body 1, the side of described cell body 1 is provided with water inlet pipe 2, in described pond
It is provided with biological selecting area 3 in the side near described water inlet pipe 2 in body 1, in described cell body 1, is provided with next-door neighbour
The synchronous nitration and denitrification bio-reaction zone 4 of described biological selecting area 3, described biological choosing in described cell body 1
The opposite side selecting district 3 and described synchronous nitration and denitrification bio-reaction zone 4 is provided with mud-water separation district 5, described mud
The end of water Disengagement zone 5 is provided with outlet pipe 6；Set between described biological selecting area 3 and described mud-water separation district 5
There is sludge reflux pump 7；It is provided with swash plate 8 in described mud-water separation district 5；In described mud-water separation district 5 described tiltedly
Plate 8 is arranged over clear water and collects canal 9；It is provided with aeration tube in described synchronous nitration and denitrification bio-reaction zone 4
10；It is provided with dissolved oxygen instrument 11 in described synchronous nitration and denitrification bio-reaction zone 4；Described simultaneous nitrification and denitrification nitre
It is provided with excess sludge sludge pump 12 in changing bio-reaction zone 4.
As shown in Figure 4, delivered in biological selecting area by pump by water inlet pipe through pretreated waste water,
The mud that biological selecting area water inlet and sludge reflux pump promote is sufficiently mixed, and the nutrient substance in water is fast by mud
Speed absorption, in biological selecting area, Zoogloea bacteria utilizes nitrite and nitrate chemical combination oxygen source to carry out numerous
Growing, filamentous bacteria is then suppressed because utilizing chemical combination oxygen source, and it is thin that growth rate lags behind zoogloea
Bacterium.Go denitrogenation and degraded COD at biological selecting area selection advantage probiotics, suppress hyphomycetic life simultaneously
Long, it is to avoid sludge bulking problem in activated sludge process.Waste water outflow enters with pond nitration denitrification raw afterwards
Carry out denitrification reaction in thing reaction zone and remove the COD of Coal Gas Washing Cycling Water.Biological at synchronous nitration and denitrification
Reaction zone dissolved oxygen control at 0.3-1.2mg/l, according to the C/N of water inlet than different and optimize dissolved oxygen
Control, make the denitrogenation of synchronous nitration and denitrification coordinate mutually with the reaction ratio of degraded COD.Waste water is through synchronizing
Being carried out muddy water shunting by mud-water separation district after nitration denitrification, clear water is arranged by drainage weir after collecting weir and catchmenting
Go out；Mud mixture is back to biological selecting area and mixes with water inlet.
In above-mentioned detailed description of the invention, on the basis of aeration with returned sludge, it is ensured that the pollution within cell body
Thing influent concentration is less, and has pollutant levels and dissolved oxygen dissolubility in synchronous nitration and denitrification pond length
There is a less graded, in order to the different microorganisms of bio-reaction zone provides different growing environments.
It can be seen that be mounted with a dissolved oxygen instrument at aeration zone end from figure, dissolved oxygen instrument passes through PLC and drum
Blower fan couples together, the concentration of dissolved oxygen instrument detection oxygen in water, is converted by concentration signal by transmitter
Being identified by PLC for the signal of telecommunication, controlling dissolved oxygen concentration scope in PLC program can be according to different water quality
Designing different numerical value, numerical intervals is 0.2～1.2mg/L.Data according to running adjust sludge pump in time
Spoil disposal.
By the data transfer of dissolved oxygen instrument to PLC in the control of dissolved oxygen, then through PLC
The numerical value arranged and the program set carry out the adjustment of rotation speed of fan and reach the adjustment of air quantity, thus realize
The control of dissolved oxygen.In order to reach a perfect treatment effect, constantly dissolved oxygen is adjusted.In order to
Reach energy-conservation purpose, turn down the control point of dissolved oxygen as far as possible and improve sludge concentration.New at biological denitrificaion
Discovery in theory and engineering practice, at dissolved oxygen in the case of 1.0mg/l, the clearance of waste water is carried
High and energy consumption declines to a great extent, therefore waste water process up to standard in the case of, constantly reduce the setting of dissolved oxygen
Value, it is achieved the survival of the fittest competition of strain, synchronous nitration and denitrification biological denitrificaion and efficiently remove high concentration
COD rather than artificial some numerical value that arranges, it is different and reach one that waste water processes the water quality according to waste water
Individual perfect dynamic equilibrium.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model,
All within spirit of the present utility model and principle, any modification, equivalent substitution and improvement etc. made, all
Within protection domain of the present utility model should be included in.
Claims (7)
1. synchronous nitration and denitrification biological denitrificaion and the device of removal organic wastewater COD, it is characterised in that:
Including cell body, the side of described cell body is provided with water inlet pipe, near the one of described water inlet pipe in described cell body
Side is provided with biological selecting area, is provided with the synchronous nitration and denitrification being close to described biological selecting area in described cell body
Bio-reaction zone, described biological selecting area and described synchronous nitration and denitrification bio-reaction zone in described cell body
Opposite side be provided with mud-water separation district, the end in described mud-water separation district is provided with outlet pipe.
Synchronous nitration and denitrification biological denitrificaion the most according to claim 1 and removal organic wastewater COD
Device, it is characterised in that: be provided with sludge reflux pump between described biological selecting area and described mud-water separation district.
Synchronous nitration and denitrification biological denitrificaion the most according to claim 1 and removal organic wastewater COD
Device, it is characterised in that: be provided with swash plate in described mud-water separation district.
Synchronous nitration and denitrification biological denitrificaion the most according to claim 3 and removal organic wastewater COD
Device, it is characterised in that: in described mud-water separation district described swash plate be arranged over clear water collect canal.
Synchronous nitration and denitrification biological denitrificaion the most according to claim 1 and removal organic wastewater COD
Device, it is characterised in that: be provided with aeration tube in described synchronous nitration and denitrification bio-reaction zone.
Synchronous nitration and denitrification biological denitrificaion the most according to claim 1 and removal organic wastewater COD
Device, it is characterised in that: be provided with dissolved oxygen instrument in described synchronous nitration and denitrification bio-reaction zone.
Synchronous nitration and denitrification biological denitrificaion the most according to claim 1 and removal organic wastewater COD
Device, it is characterised in that: be provided with excess sludge sludge pump in described synchronous nitration and denitrification bio-reaction zone.
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|---|---|---|---|
| CN201620313016.2U CN205556234U (en) | 2016-04-15 | 2016-04-15 | Synchronous nitrification and denitrification biological denitrogenation and get rid of organic waste water COD's device |
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| CN201620313016.2U CN205556234U (en) | 2016-04-15 | 2016-04-15 | Synchronous nitrification and denitrification biological denitrogenation and get rid of organic waste water COD's device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107265637A (en) * | 2017-06-30 | 2017-10-20 | 海宁瑞星皮革有限公司 | A kind of leather-making waste water total nitrogen removes technique |
| CN116253435A (en) * | 2023-03-10 | 2023-06-13 | 中麒水务科技(深圳)有限公司 | Sewage treatment system and process thereof |
-
2016
- 2016-04-15 CN CN201620313016.2U patent/CN205556234U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107265637A (en) * | 2017-06-30 | 2017-10-20 | 海宁瑞星皮革有限公司 | A kind of leather-making waste water total nitrogen removes technique |
| CN107265637B (en) * | 2017-06-30 | 2019-09-03 | 四川大学 | A kind of leather-making waste water total nitrogen removal technique |
| CN116253435A (en) * | 2023-03-10 | 2023-06-13 | 中麒水务科技(深圳)有限公司 | Sewage treatment system and process thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160907 Termination date: 20190415 |