CN209411877U - Efficient anaerobic denitrification organisms reactor - Google Patents
Efficient anaerobic denitrification organisms reactor Download PDFInfo
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- CN209411877U CN209411877U CN201821957212.9U CN201821957212U CN209411877U CN 209411877 U CN209411877 U CN 209411877U CN 201821957212 U CN201821957212 U CN 201821957212U CN 209411877 U CN209411877 U CN 209411877U
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Abstract
The utility model discloses a kind of efficient anaerobic denitrification organisms reactors, water outlet is offered on the side wall of tank body, tank interior is divided into mixed zone, removal of carbon and nitrogen room, except carbon conversion room, settling zone and gas-water separation zone totally five functional areas, water distributor is inverted V-shape structure, positioned at the mixed zone of the bottom of reactor, first order three phase separator and second level three phase separator are located at the middle part and top of reactor, and it is all made of inverted V-shape gas collection cover structure, interior return pipe and tank body are concentric, and upper port is connect with moisture trap, lower port is located at mixed zone, effluent weir is located at the top of second level three phase separator, and it is connect with water outlet, moisture trap is located at the top of tank body, outer circulation pump is located at the outside of tank body, by circulation pipe respectively with the bottom of tank wall, the top of removal of carbon and nitrogen room is connected to.The utility model save the cost, have compared with high sludge concentration, capacity of resisting impact load is strong, nitric efficiency is high.
Description
Technical field
The utility model relates to sewage-treating reactor technical fields more particularly to a kind of efficient anaerobic denitrification organisms to react
Device.
Background technique
As the total nitrogen discharge standard of wastewater treatment in China is continuously improved, to the overall control of total nitrogen pollutant also increasingly by
To attention.Town sewage and industrial wastewater total nitrogen pollutant removal are the emphasis of current water prevention and cure of pollution and regeneration effluent water reuse
And difficult point.
High concentration nitrate waste water is a kind of higher waste water of nitrogen load, sludge-digestion liquid, aerobic nitre in sewage treatment plant
The water outlet of change and other industrial wastewaters can produce high concentration nitrate, not only increase the load of sewage treatment plant's denitrogenation, also
Increase operation processing cost, and organic carbon source deficiency then will affect denitrification effect, influence effluent quality, cost-effectively into
Row high concentration nitrate denitrogenation of waste water is the important process in sewage treatment.
Traditional biological denitrogenation is by denitrification process, i.e. denitrifying bacterium utilizes biodegradable organic matter by nitrate
Nitrogen and nitrite nitrogen are reduced to nitrogen completely, to achieve the purpose that sewage water denitrification, while can also remove the COD of part.
But for the processing of the denitrification of high-nitrate state nitrogen waste water, the anoxic pond of very big occupied area is not only needed, but also due to high in system
The presence of the nitrate of concentration inhibits the reduction of nitrite, and nitrate reduction rate is caused to be greater than nitrate reductase speed
Rate, and then nitrite can be caused to accumulate in systems, and the accumulation of nitrite nitrogen concentration, it in turn again can be to denitrification
Reaction cause to inhibit, this feedback inhibition can not be released by effective ways, still, in anaerobic denitrification system can by compared with
The measures such as the reflux of large scale are controlled, and above-mentioned inhibiting effect can be released, to improve denitrification efficiency.
Anaerobic reactor has the characteristics that load is high, occupied area is small, operating cost is low, the technique of anaerobic denitrification due to it
Also increasingly by the favor of correlative study.By studies have shown that in anaerobic denitrification system, although there is denitrification and producing first
The coupled problem of alkane (i.e. due to the presence of nitrate anion, causes oxidation-reduction potential to be in a high position, is unfavorable for the work of methanogen
Property；The NO being metabolized in denitrification processXCompound has certain inhibiting effect to methanogen；Denitrifying bacterium and methanogen pair
Have competitive relation in carbon source), still, it may be implemented than measures such as control, the reflux of larger proportion in anti-nitre by reasonable C/N
Methane phase while change.High concentration nitrate waste water is handled using anaerobic denitrifying, is a kind of economy for solving denitrogenation of waste water, has
The new way of effect.
Those skilled in the art are dedicated to solving above-mentioned technological deficiency.
Utility model content
In view of the above drawbacks of the prior art, the technical purpose of the utility model is to solve above-mentioned technological deficiency.
To realize the above-mentioned technical purpose, the utility model provides a kind of efficient anaerobic denitrification organisms reactor, including tank
Body, water distributor, first order three phase separator, second level three phase separator, interior return pipe, effluent weir, moisture trap, outer circulation
Pump, offers water outlet on the side wall of the tank body, the tank interior be divided into mixed zone, removal of carbon and nitrogen room, except carbon conversion room,
Totally five functional areas, the water distributor are inverted V-shape structure, the mixing positioned at the bottom of reactor for settling zone and gas-water separation zone
Area, the first order three phase separator and second level three phase separator are located at the middle part and top of reactor, and are all made of
Inverted V-shape gas collection cover structure, the interior return pipe and tank body are concentric, and upper port is connect with moisture trap, lower port position
In mixed zone, the effluent weir is located at the top of second level three phase separator, and connect with water outlet, the moisture trap position
In the top of tank body, the outer circulation pump is located at the outside of tank body, is removed respectively with the bottom of tank wall, denitrogenation by circulation pipe
The top of carbon room is connected to.
Further, the tank body is cylindrical body, and the top of tank body is equipped with cover board, and gas-water separation is provided on cover board
The bottom of device, the tank wall is equipped with water inlet and mud discharging mouth, and reflux is equipped between the water outlet and water inlet end of the tank body
Pipe.
Further, the water distributor is located at the bottom of tank interior, the water distributor by two-stage inverted V-shape gas gathering mask with
Water distributor composition, and water distributor is located among two-stage gas gathering mask.
Further, the first order three phase separator is staggeredly arranged in parallel with second level three phase separator, and the two
Mating respectively to be provided with gas-guide tube, gas-guide tube is connected to moisture trap.
Further, the moisture trap is cylindrical structure, concentric with tank body, and top is equipped with gas outlet, side
Wall is equipped with air guide tube connection ports, and bottom is equipped with interior reflux tube connection ports.
The utility model has the beneficial effects that
1, the utility model integrates denitrogenation and except two process of carbon, has saved occupied area and investment operating cost,
And while removal of carbon and nitrogen, biodegradable organic matter can be converted by the part hard-degraded substance in water, after being
Continuous process provides guarantee.
2, the utility model is by setting two-stage three phase separator, obtains compared with high sludge concentration, by being recycled in air lift and
The disturbance for forcing outer circulation, comes into full contact with mud mixture, obtains good mass transfer effect, and denitrification volumetric loading can be made high
Up to 0.8-1.5kg NO3 --N/m3D, and traditional anoxic denitrification pond is typically about 0.2-0.3kg NO3 --N/m3·d。
3, the utility model has biggish ratio of height to diameter (ratio of height to diameter 3-8) and upflow velocity (flow velocity 3-5m/h), protects
Coming into full contact with for microorganism and pollutant has been demonstrate,proved, the processing more traditional up-flow anaerobic sludge blanket of load (UASB) is higher by 2 times or more,
Its volume is equivalent to the 1/3-1/2 or so of common anaerobic reactor, the 1/4-1/5 in common denitrification pond, and is not required to sedimentation basin, greatly
The capital expenditure of reactor is reduced greatly.
4, the utility model use force systemic circulation reflux (reflux ratio 8-20) mode, make a large amount of recirculated water and into
After water is sufficiently mixed, nitrate nitrogen in raw water etc. sufficiently dilutes the injurious factor of methanogen, denitrifying bacterium etc., greatly
Influence of the poisonous substance to anaerobic denitrification process is reduced greatly, so that the capacity of resisting impact load of reactor is stronger.
5, the water outlet of the utility model flows back, and on the one hand can make full use of the basicity of denitrification and COD conversion, subtracts
The supplement of few basicity, maintains the stabilization of pH value in reactor；On the other hand water inlet can be diluted, reduces the nitre of high concentration
Hydrochlorate nitrogen improves nitric efficiency to the inhibiting effect of system.
Detailed description of the invention
Fig. 1 is the schematic diagram of the utility model efficient anaerobic denitrification organisms reactor；
Fig. 2 is the plan view of the utility model efficient anaerobic denitrification organisms reactor.
Figure label: 1- tank body, the mixed zone 101-, 102- removal of carbon and nitrogen room, 103- except carbon conversion room, the settling zone 104-,
105- gas-water separation zone, 2- water distributor, 3- first order three phase separator, the second level 4- three phase separator, return pipe, 6- go out in 5-
Mill weir, 7- moisture trap, 8- outer circulation pump, 9- water inlet, 10- mud discharging mouth, 11- water outlet, 12- return pipe, 13 gas outlets.
Specific embodiment
Make furtherly below with reference to technical effect of the attached drawing to the design of the utility model, specific structure and generation
It is bright, to be fully understood from the purpose of this utility model, feature and effect.
Embodiment:
Please refer to a kind of Fig. 1-efficient anaerobic denitrification organisms reactor shown in Fig. 2, including tank body 1, water distributor 2, first
Grade three phase separator 3, second level three phase separator 4, interior return pipe 5, effluent weir 6, moisture trap 7, outer circulation pump 8, it is described
First order three phase separator 3 is staggeredly arranged in parallel with second level three phase separator 4, and both distinguishes mating provided with air guide
Pipe (not shown), gas-guide tube are connected to moisture trap 7.
Water outlet 11 is offered on the side wall of tank body 1, be divided into inside the tank body 1 mixed zone 101, removal of carbon and nitrogen room 102,
Except totally five functional areas, removal of carbon and nitrogen room 102 are located at mixed zone 101 for carbon conversion room 103, settling zone 104 and gas-water separation zone 105
Top, the disturbance for the nitrogen that the upper up-flow of mixed liquor and denitrification generate in reactor, makes the reaction zone endoparticle sludge in swollen
Swollen and fluidized state strengthens sludge and contacts with the surface of waste water, and sludge remains high activity therefrom, 20-40g/L's
Under the action of the granule sludge of high concentration, most of nitrate nitrogen is converted into nitrogen herein, with increasing for gas yield, one
The gas-liquid separation zone 105 for dividing mud mixture to be risen to top by gas-guide tube (not shown) by the gas of reaction generation,
Another part continues to ascend into except carbon conversion room 103, upper up-flow scooter to 3-8m/h, and the water distributor 2 is inverted V-shape
Structure, positioned at the mixed zone 101 of the bottom of reactor.
It is worth noting that, water distributor 2 is located at the mixed zone 101 of 1 bottom of tank body, water distributor 1 is by two-stage inverted V-shape gas collection
Cover is formed with water distributor, and water distributor is located among two layers of gas gathering mask, and by the effect of two layers of gas gathering mask, water inlet can uniform cloth
Water, and with the mud mixture of sludge, the mud mixture of forced circulation and gas-liquid separation zone 105 reflux effectively in this area
Domain mixing.
Except carbon conversion room 103 is located at the top of removal of carbon and nitrogen room 102, mud mixture passes through first order three phase separator 3
Into carbon conversion room 103 is removed, in carbon conversion room 103, sludge concentration has been lowered to 10-20g/L, and useless water part organic matter
It is degraded in removal of carbon and nitrogen room 103, the methane quantity of generation is less, and biogas is entered by another gas-guide tube (not shown)
Gas-liquid separation zone 105, so that gas is to the disturbance very little for removing carbon conversion room 103, this provides advantage for the stop of sludge,
Be conducive to effective conversion of hard-degraded substance in water.
It is worth noting that, first order three phase separator 3 and second level three phase separator 4 are located at the middle part of reactor
And top, and it is all made of inverted V-shape gas collection cover structure.
Interior return pipe 5 and tank body 1 are concentric, and upper port is connect with moisture trap 7, and lower port is located at mixed zone 101,
The effluent weir 6 is located at the top of second level three phase separator 4, and connect with water outlet 11, and the effluent weir 6 is located at except carbon turns
The settling zone 104 for changing 103 top of room, except the mud mixture of carbon conversion room 103 is precipitated in settling zone 104, the sludge after precipitating
The Sludge Bed for removing carbon conversion room 103 is returned to, sewage is discharged after effluent weir 6 by outlet pipe.
Moisture trap 7 is located at the top of tank body 1, and the outer circulation pump 8 is located at the outside of tank body 1, passes through circulation pipe point
It is not connected to the top of the bottom of 1 side wall of tank body, removal of carbon and nitrogen room 102, it is notable that the tank body 1 is cylindrical body, tank
The top of body 1 is equipped with cover board, and moisture trap 7 is provided on cover board.The bottom of 1 side wall of tank body is equipped with water inlet 9 and spoil disposal
The top of mouth 10, tank wall is equipped with water outlet 11, and return pipe 12 is equipped between water outlet 11 and water inlet 9, and part is discharged
It is back to water inlet end by effluent recycling pipe 12, enters reactor bottom after mixing with water inlet, on the one hand can dilute water inlet, reduce
The nitrate nitrogen concentration of water inlet reduces the inhibiting effect of nitrate nitrogen, improves nitric efficiency；On the other hand basicity can be supplemented, tieed up
Hold the pH value balance in system.
Using the utility model handle certain coal chemical industry enterprises synthesis gas preparing ethylene glycol produce waste water, stable operation the 1st day
It is as shown in table 1 to the 15th day inflow and outflow data comparison situation.
1 reactor inflow and outflow water quality of table
As shown in Table 1, after utility model device handles certain glycol production waste water 15 days, COD in waste water from
3525-6781mg/L is reduced to 2000mg/L hereinafter, nitrate nitrogen (NO3- N) from 349-627mg/L 50mg/L is reduced to hereinafter, total
Nitrogen is reduced to 55mg/L or less from 365-634mg/L.It can be seen that denitrogenation of the utility model device to the nitrate wastewater of high concentration
Effect is preferable, and can remove a part of COD simultaneously.
The preferred embodiments of the present invention have been described in detail above.It should be appreciated that the ordinary skill people of this field
Member according to the present utility model can conceive without creative work makes many modifications and variations.Therefore, all this technology necks
Technical staff passes through logic analysis, reasoning or limited reality according to the design of the utility model on the basis of existing technology in domain
Available technical solution is tested, it all should be within the scope of protection determined by the claims.
Claims (7)
1. a kind of efficient anaerobic denitrification organisms reactor, it is characterised in that: including tank body (1), water distributor (2), first order three-phase
Separator (3), second level three phase separator (4), interior return pipe (5), effluent weir (6), moisture trap (7), outer circulation pump
(8), it is offered water outlet (11) on the side wall of the tank body (1), is divided into mixed zone (101) inside the tank body (1), denitrogenation removes
Carbon room (102), except carbon conversion room (103), settling zone (104) and gas-water separation zone (105) totally five functional areas, the water distributor
(2) positioned at the mixed zone (101) of the bottom of reactor, the first order three phase separator (3) and second level three phase separator (4)
It is located at the middle part and top of reactor, the interior return pipe (5) and tank body (1) are concentric, and upper port and gas-water separation
Device (7) connection, lower port are located at mixed zone (101), and the effluent weir (6) is located at the top of second level three phase separator (4), and
It is connect with water outlet (11), the moisture trap (7) is located at the top of tank body (1), and the outer circulation pump (8) is located at tank body
(1) outside is connected to the top of the bottom of tank body (1) side wall, removal of carbon and nitrogen room (102) respectively by circulation pipe.
2. efficient anaerobic denitrification organisms reactor according to claim 1, it is characterised in that: the tank body (1) is cylinder
The top of body, tank body (1) is equipped with cover board, and moisture trap (7) are provided on cover board, and the bottom of tank body (1) side wall is set
There are water inlet (9) and mud discharging mouth (10), is equipped with return pipe (12) between the water outlet (11) and water inlet end of the tank body (1).
3. efficient anaerobic denitrification organisms reactor according to claim 1, it is characterised in that: the water distributor (2) is located at
The internal bottom of tank body (1), the water distributor (2) are made of two-stage inverted V-shape gas gathering mask with water distributor, and water distributor is located at two
Among grade gas gathering mask.
4. efficient anaerobic denitrification organisms reactor according to claim 1, it is characterised in that: the first order three phase separation
Device (3) is staggeredly arranged in parallel with second level three phase separator (4), and both distinguishes mating provided with gas-guide tube, gas-guide tube
It is connected to moisture trap (7).
5. efficient anaerobic denitrification organisms reactor according to claim 1, it is characterised in that: the moisture trap (7)
It is concentric with tank body (1) for cylindrical structure, and top is equipped with gas outlet (13), side wall is equipped with air guide tube connection ports, and bottom is set
There is interior return pipe (5) connector.
6. efficient anaerobic denitrification organisms reactor according to claim 1, it is characterised in that: the water distributor (2) is V
Font structure.
7. efficient anaerobic denitrification organisms reactor according to claim 1, it is characterised in that: the first order three phase separation
Device (3) and second level three phase separator (4) are all made of inverted V-shape gas collection cover structure, and are respectively provided with gas-guide tube.
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| CN201821957212.9U CN209411877U (en) | 2018-11-26 | 2018-11-26 | Efficient anaerobic denitrification organisms reactor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109516553A (en) * | 2018-11-26 | 2019-03-26 | 上海泓济环保科技股份有限公司 | Efficient anaerobic denitrification organisms reactor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109516553A (en) * | 2018-11-26 | 2019-03-26 | 上海泓济环保科技股份有限公司 | Efficient anaerobic denitrification organisms reactor |
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