CN206143005U - Synchronous nitrification and denitrification sewage treatment plant and system based on MBBR - Google Patents
Synchronous nitrification and denitrification sewage treatment plant and system based on MBBR Download PDFInfo
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- CN206143005U CN206143005U CN201620954890.4U CN201620954890U CN206143005U CN 206143005 U CN206143005 U CN 206143005U CN 201620954890 U CN201620954890 U CN 201620954890U CN 206143005 U CN206143005 U CN 206143005U
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- aerobic reaction
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- AHEWZZJEDQVLOP-UHFFFAOYSA-N monobromobimane Chemical compound BrCC1=C(C)C(=O)N2N1C(C)=C(C)C2=O AHEWZZJEDQVLOP-UHFFFAOYSA-N 0.000 title claims abstract description 86
- 239000010865 sewage Substances 0.000 title claims abstract description 85
- 230000001360 synchronised effect Effects 0.000 title claims abstract description 32
- 238000006243 chemical reaction Methods 0.000 claims abstract description 67
- 238000006396 nitration reaction Methods 0.000 claims abstract description 32
- 230000001112 coagulating effect Effects 0.000 claims abstract description 21
- 238000004062 sedimentation Methods 0.000 claims abstract description 20
- 238000005273 aeration Methods 0.000 claims abstract description 13
- 238000010992 reflux Methods 0.000 claims abstract description 11
- 239000010802 sludge Substances 0.000 claims description 38
- 230000001105 regulatory effect Effects 0.000 claims description 33
- 238000007667 floating Methods 0.000 claims description 27
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 claims description 24
- 238000001556 precipitation Methods 0.000 claims description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 239000004744 fabric Substances 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 14
- 238000005276 aerator Methods 0.000 claims description 13
- 238000001514 detection method Methods 0.000 claims description 13
- 230000008569 process Effects 0.000 claims description 13
- 239000002244 precipitate Substances 0.000 claims description 10
- 238000002156 mixing Methods 0.000 claims description 9
- 238000007790 scraping Methods 0.000 claims description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 238000010907 mechanical stirring Methods 0.000 claims description 5
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 239000006228 supernatant Substances 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims 2
- 229910021529 ammonia Inorganic materials 0.000 claims 1
- 239000007788 liquid Substances 0.000 abstract description 4
- 238000009434 installation Methods 0.000 abstract description 3
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 206010021143 Hypoxia Diseases 0.000 abstract 3
- 239000000567 combustion gas Substances 0.000 abstract 1
- 230000001546 nitrifying effect Effects 0.000 abstract 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 10
- 239000001301 oxygen Substances 0.000 description 10
- 229910052760 oxygen Inorganic materials 0.000 description 10
- 230000009286 beneficial effect Effects 0.000 description 9
- 241000894006 Bacteria Species 0.000 description 8
- -1 nitrogen-containing compound Chemical class 0.000 description 5
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 238000011081 inoculation Methods 0.000 description 3
- 229910052698 phosphorus Inorganic materials 0.000 description 3
- 239000011574 phosphorus Substances 0.000 description 3
- 238000013019 agitation Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000011897 real-time detection Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000002000 scavenging effect Effects 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 241000108664 Nitrobacteria Species 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012851 eutrophication Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000008239 natural water Substances 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
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- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The utility model relates to a synchronous nitrification and denitrification sewage treatment plant and system based on MBBR, its device is including the equalizing basin, the oxygen deficiency pond, MBBR aerobic reaction tank, aeration equipment, two heavy pond and coagulating sedimentation tank, pending sewage lets in in the equalizing basin through the pipeline, the oxygen deficiency pond is located gap one side of equalizing basin, MBBR aerobic reaction tank sets up the delivery port one side in the oxygen deficiency pond, the aeration equipment combustion gas lets in to MBBR aerobic reaction tank's the sewage in and carries out aeration treatment to sewage, two sink the pond setting on one side of MBBR aerobic reaction tank's delivery port. The utility model discloses a based on MBBR's synchronous nitrification and denitrification sewage treatment plant, improve nitrifying and denitrogenation efficiency of present cities and towns sewage treatment plant, improve the synchronous nitrification and denitrification performance of system, reduce nitration liquid reflux's energy consumption and cost, it can the reinforce to have upgrade simple and convenient, easy to maintain and installation, withstand load, mud age is long, the denitrogenation is effectual, running cost low grade characteristics.
Description
Technical field
This utility model is related to technical field of sewage, more particularly to a kind of synchronous nitration and denitrification dirt based on MBBR
Water treatment facilities and system.
Background technology
At present, China overwhelming majority urban wastewater treatment firm is generally using conventional activated sludge process to town domestic sewage
Processed.However, as the sludge age of traditional activated sludge process is relatively short, it is unfavorable for the longer nitrification of generation cycle in system
Enrichment of bacteria, causes the nitrogen removal performance of conventional activated sludge process poor, and a large amount of nitrogen-containing compounds are effectively removed just to be entered
Natural water body, causes the eutrophication of water body.With continuous improvement of the country to nitrogen-containing compound discharge standard, some cities and towns are dirty
Water treatment plant needs simple and effective process to carry out upgrading to existing sewage disposal system, so as to improve the de- of system
Nitrogen performance.
MBBR (Moving Bed Biofilm Reactor, MBBR) is by aerobic reactor
Certain amount density is added inside close to the floating stuffing of water so as to the similar density after biomembrane is formed with water, it is ensured that fill out
Material suspends in water.After filler forms biomembrane, due to the restriction of the diffusion of oxygen, the gradient of DO can be formed, biomembranous
Outer surface, as DO concentration is of a relatively high, based on aerobic nitrification bacterium, gos deep into inside flco, due to a large amount of consumption of external oxygen,
And oxygen transmission is obstructed, and produces anoxic zone, denitrifying bacterium is dominant, carries out having created while being nitration reaction and anti-nitration reaction
The environment of profit.
Generally, in order to maintain higher biological concentration and obtain preferable denitrification effect, it is necessary to while carry out nitrification liquid returning
Stream and two processes of sludge reflux, this adds increased the expense in terms of power consumption；Secondly as the growth rate ratio of nitrifier
It is relatively slow, and it is difficult to maintain higher biological concentration.Therefore, hydraulic detention time needed for system is longer, needs to increase Aeration tank
Volume extend hydraulic detention time, this adds increased capital expenditure and operating cost.Again, in needing to add alkali and nitrified
Acidity produced by journey, this not only increased adding of agent expense, but also be likely to cause the pollution again at water source.
Synchronous nitration and denitrification technique is referred under the same terms in same reactor, nitrification and denitrification reaction
Can carry out simultaneously.Compared with traditional biological denitrification process, the process not only can reduce structures consersion unit, reduce capital construction
Investment and reduction land used, and the basicity produced by denitrification process can be with the consumed basicity of additional nitration process, so as to maintain
In reactor, pH value stablizes, it is ensured that denitrification reaction is smoothed out, and reduces adding of agent cost.
Utility model content
Technical problem to be solved in the utility model is for above-mentioned the deficiencies in the prior art, there is provided a kind of to be based on MBBR
Synchronous nitration and denitrification sewage-treatment plant and system.
The technical scheme that this utility model solves above-mentioned technical problem is as follows：A kind of synchronous nitration and denitrification based on MBBR
Sewage-treatment plant, including regulating reservoir, anoxic pond, MBBR aerobic reaction tanks, aerator, second pond and coagulative precipitation tank, treat
Process sewage to be passed through in the regulating reservoir by pipeline, the anoxic pond is located at the gap side of the regulating reservoir, and collects
From the sewage that the regulating reservoir overflows, the MBBR aerobic reaction tanks are arranged on the outlet side of the anoxic pond, and described
Sewage self-flowing in anoxic pond after anoxic treatment is entered in the MBBR aerobic reaction tanks, the aeration tube of the aerator
The bottom of the MBBR aerobic reaction tanks is placed in, and Air Exposure is carried out to the sewage in the MBBR aerobic reaction tanks, it is described
Second pond is arranged on the reacted dirt in the outlet side of the MBBR aerobic reaction tanks, and the MBBR aerobic reaction tanks
Water is precipitated in the second pond, and the supernatant after the sedimentation in secondary sedimentation tank is separated enters the coagulative precipitation tank, sinks
The activated sludge formed sediment after separating is entered in the anoxic pond by reflux line.
A kind of synchronous nitration and denitrification sewage-treatment plant based on MBBR of the present utility model, improves existing town sewage
The nitrification and nitric efficiency for the treatment of plant, improve system synchronous nitration and denitrification performance, reduce nitrification liquid backflow energy consumption and into
This, with easy, easy to maintain and installation of upgrading, load resistance ability is strong, sludge age length, denitrification effect are good, the low spy of operating cost
Point.
On the basis of above-mentioned technical proposal, this utility model can also do following improvement：
Further：At least one mechanical stirring device, the mechanical agitation are mounted in the regulating reservoir and anoxic pond
Device makes its uniform mixing to being stirred into the sewage in the regulating reservoir or anoxic pond.
The beneficial effect of above-mentioned further scheme is：By the mechanical stirring device so that enter institute into described pair
State regulating reservoir or the sewage in anoxic pond is stirred and makes its uniform mixing, be easy to sewage homogeneous reaction, improve scavenging effect.
Further：Downflow weir is provided with the regulating reservoir, the downflow weir is provided with multiple spout holes, and works as the regulation
When sewage level in pond is higher than the spout hole, sewage meeting overflow is entered in the anoxic pond.
The beneficial effect of above-mentioned further scheme is：The dirt in the regulating reservoir can be caused by arranging the downflow weir
It is more uniform after water mixing, and the sewage level in the regulating reservoir is when reaching the height of the downflow weir, sewage meeting
Uniform overflow is to the anoxic pond so that the sewage reaction is more uniform.
Further：It is provided with to be passed through sewage and carry out shunting process in the regulating reservoir and enters water diverter.
The beneficial effect of above-mentioned further scheme is：Sewage can be caused more uniform by entering water diverter described in setting
The entrance regulating reservoir in, and during shunting so that the further full and uniform mixing of sewage.
Further：Mud equipment of scraping is provided with the second pond and coagulative precipitation tank, the mud equipment of scraping will precipitation point
Activated sludge after is scraped in corresponding heavy bucket.
The beneficial effect of above-mentioned further scheme is：Can be by the second pond and coagulating sedimentation by the mud equipment of scraping
The sludge and precipitate in pond is scraped to corresponding heavy bucket, facilitates in second pond volume sludge reflux to the anoxic pond,
The convenient float and phosphorus-containing compound removed in the follow-up coagulative precipitation tank in sewage is converted into precipitate.
Further：Also include sludge pump, the sludge pump is arranged on the reflux line and by the sedimentation in secondary sedimentation tank
Activated sludge after separation is delivered in the anoxic pond.
The beneficial effect of above-mentioned further scheme is：After the sludge pump can cause the sedimentation in secondary sedimentation tank to separate
Activated sludge be more smoothly back in the anoxic pond, prevent activated sludge from piling up in the return tank and cause backflow
Pipeline congestion.
Further：The MBBR aerobic reaction tanks are built with floating stuffing.
The beneficial effect of above-mentioned further scheme is：The nitrification that the generation cycle can be made longer by the floating stuffing is thin
Bacterium is attached on suspending carrier, extends the sludge age of system, improves the nitrification efficiency the activated sludge with outside inoculation of system
MBBR oxide-films are formed, using the restriction of the diffusion of oxygen, the gradient of DO can be formed, in biomembranous outer surface, due to DO concentration
It is of a relatively high, based on aerobic nitrification bacterium, go deep into inside flco, as a large amount of consumption of external oxygen, and oxygen transmission are obstructed, produce
Anoxic zone, denitrifying bacterium are dominant, and are that the carrying out of synchronous nitration and denitrification reaction creates favourable environment.
Further：Vertically it is provided with described for preventing the floating stuffing from entering near outlet side in the second pond
The screen cloth of coagulative precipitation tank.
The beneficial effect of above-mentioned further scheme is：Can effectively prevent aerobic anti-positioned at the MBBR by the screen cloth
Floating stuffing in Ying Chi is entered in the solidifying sedimentation tank, on the one hand can avoid described impact in the MBBR aerobic reaction tanks
On the other hand the loss of floating stuffing affects the carrying out of reaction, can avoid in the floating stuffing and the coagulative precipitation tank
Precipitate after converting in sewage is together discharged, and causes floating stuffing to waste.
Further：The screen cloth is stainless steel, and the mesh size of the screen cloth is less than the chi of the floating stuffing
It is very little.
The beneficial effect of above-mentioned further scheme is：The floating stuffing can be prevented effectively from by the way enters institute
State in solidifying sedimentation tank, it is ensured that the reaction in the MBBR aerobic reaction tanks is normally and efficiently carried out.
Further：The floating stuffing is cylindrical, and diameter range is 10-20mm, and the mesh of the screen cloth is circle, directly
Footpath scope is 6-8mm.
Further：The aeration tube of the aerator is evenly distributed on the bottom of the MBBR aerobic reaction tanks.
The beneficial effect of above-mentioned further scheme is：Can cause by the way to expose in the MBBR aerobic reaction tanks
Gas is uniform, so that it is guaranteed that the reaction in the MBBR aerobic reaction tanks is more uniform, intensified response efficiency.
This utility model additionally provides a kind of synchronous nitration and denitrification sewage disposal system based on MBBR, including main control
Circuit, ammonia nitrogen detection means and the described synchronous nitration and denitrification sewage-treatment plant based on MBBR, the ammonia nitrogen detection dress
Put and be arranged in the MBBR aerobic reaction tanks and detect the ammonia nitrogen concentration in the MBBR aerobic reaction tanks, the main control electricity
Road is electrically connected with the ammonia nitrogen detection means and aerator respectively.
Can be realized with the ammonia nitrogen concentration in MBBR aerobic reaction tanks described in real-time detection by the ammonia nitrogen detection means
The monitor in real time of ammonia nitrogen concentration in the MBBR aerobic reaction tanks, and the main control circuit examined according to the ammonia nitrogen detection means
The ammonia nitrogen concentration of survey controls the power of the aerator, realizes the dynamic equilibrium of aeration rate and ammonia nitrogen concentration.
Description of the drawings
Fig. 1 is a kind of synchronous nitration and denitrification sewage-treatment plant structural representation based on MBBR of the present utility model.
Specific embodiment
Principle of the present utility model and feature are described below in conjunction with accompanying drawing, example is served only for explaining this practicality
It is new, it is not intended to limit scope of the present utility model.
As shown in figure 1, a kind of synchronous nitration and denitrification sewage-treatment plant based on MBBR, including regulating reservoir, anoxic pond,
MBBR aerobic reaction tanks, aerator, second pond and coagulative precipitation tank, treatment sewage are passed through the regulating reservoir by pipeline
In, the anoxic pond is located at the gap side of the regulating reservoir, and collects from the regulating reservoir sewage for overflowing, the MBBR
Aerobic reaction tank is arranged on the outlet side of the anoxic pond, and the sewage self-flowing in the anoxic pond after anoxic treatment
Into in the MBBR aerobic reaction tanks, the aeration tube of the aerator is placed in the bottom of the MBBR aerobic reaction tanks, and
Air Exposure is carried out to the sewage in the MBBR aerobic reaction tanks, the second pond is arranged on the MBBR aerobic reaction tanks
Reacted sewage in outlet side, and the MBBR aerobic reaction tanks is precipitated in the second pond, described
Sewage after sedimentation in secondary sedimentation tank is separated enters the coagulative precipitation tank, and the sludge after precipitate and separate enters described by reflux line
In anoxic pond, coagulated agent is added in the most backward coagulative precipitation tank, and remove the float in sewage and phosphorus-containing compound.
Specifically, sewage is passed through in regulating reservoir and is sufficiently mixed, the sewage overflow in the regulating reservoir enters anoxic pond
In, flow automatically after anoxic treatment into the sewage in the anoxic pond and enter in the MBBR aerobic reaction tanks；It is good in MBBR
Inoculation of activated-sludge in oxygen reaction tank so that activated sludge adds floating stuffing fully to mix in the MBBR aerobic reaction tanks with advance
Close, and MBBR oxide-films are formed on the floating stuffing surface, then to aeration in the MBBR aerobic reaction tanks, until sewage
In ammonia nitrogen concentration reach setting in the range of；The sewage controlled in the MBBR aerobic reaction tanks is sunk in second pond
Form sediment, and the supernatant after precipitate and separate is passed through in coagulative precipitation tank, while the activated sludge after precipitate and separate passes through return duct
Road is back in the anoxic pond.
In the present embodiment, at least one mechanical stirring device, the machinery in the regulating reservoir and anoxic pond, are mounted on
Agitating device makes its uniform mixing to being stirred into the sewage in the regulating reservoir or anoxic pond.By the mechanical agitation
Device so that being stirred into the sewage in the described pair of entrance regulating reservoir or anoxic pond makes its uniform mixing, is easy to dirt
Water homogeneous reaction, improves scavenging effect.
Preferably, downflow weir is provided with the regulating reservoir, the downflow weir is provided with multiple spout holes, and works as the regulation
When sewage level in pond is higher than the spout hole, sewage meeting overflow is entered in the anoxic pond.By arranging the downflow weir
The sewage in the regulating reservoir can be caused more uniform after mixing, and the sewage level in the regulating reservoir reaches institute
When stating the height of downflow weir, sewage can uniform overflow to the anoxic pond so that sewage reaction is more uniform.
In the present embodiment, it is provided with to carry out shunting process by the sewage being passed through in the regulating reservoir and enters water diverter.Cross and set
Put it is described enter water diverter can make so that sewage is more uniformly entered in the regulating reservoir, and during shunting
Obtain the further full and uniform mixing of sewage.
Preferably, mud equipment of scraping is provided with the second pond and coagulative precipitation tank, the mud equipment of scraping will be active dirty
Mud is scraped in corresponding heavy bucket.Can be by the second pond and the sludge and precipitation of coagulative precipitation tank by the mud equipment of scraping
Thing is scraped to corresponding heavy bucket, facilitates volume sludge reflux in second pond to the anoxic pond, to be also convenient for removing follow-up institute
State float and phosphorus-containing compound in coagulative precipitation tank in sewage and be converted into precipitate.
In the present embodiment, also including sludge pump, the sludge pump is arranged on the reflux line and by the second pond
Activated sludge after precipitate and separate is delivered in the anoxic pond.The sedimentation in secondary sedimentation tank point can be caused by the sludge pump
Activated sludge after is more smoothly back in the anoxic pond, is prevented activated sludge from piling up in the return tank and is caused
Reflux line congestion.
In the present embodiment, the MBBR aerobic reaction tanks are built with floating stuffing.Generation can be made by the floating stuffing
Be attached on suspending carrier for cycle longer nitrobacteria, extend system sludge age, improve system nitrification efficiency and with
The activated sludge of outside inoculation forms MBBR oxide-films, using the restriction of the diffusion of oxygen, can form the gradient of DO, biomembranous
Outer surface, as DO concentration is of a relatively high, based on aerobic nitrification bacterium, gos deep into inside flco, due to a large amount of consumption of external oxygen,
And oxygen transmission is obstructed, and produces anoxic zone, denitrifying bacterium is dominant, and is that the carrying out of synchronous nitration and denitrification reaction creates favourable ring
Border.
Preferably, vertically it is provided with described for preventing the floating stuffing from entering near outlet side in the second pond
The screen cloth of coagulative precipitation tank.Can effectively prevent the floating stuffing in the MBBR aerobic reaction tanks from entering by the screen cloth
Enter in the solidifying sedimentation tank, the loss for affecting floating stuffing in the MBBR aerobic reaction tanks on the one hand can be avoided to affect
The carrying out of reaction, on the other hand, the precipitation after converting during the floating stuffing and sewage in the coagulative precipitation tank can be avoided
Thing is together discharged, and causes floating stuffing to waste.
Preferably, the screen cloth is stainless steel, and the mesh size of the screen cloth is less than the chi of the floating stuffing
It is very little.The floating stuffing can be prevented effectively from by the way in the solidifying sedimentation tank, it is ensured that the MBBR is aerobic anti-
Reaction in Ying Chi is normally and efficiently carried out.
Preferably, the floating stuffing is cylindrical, and diameter range is 10-20mm, and the mesh of the screen cloth is circle, directly
Footpath scope is 6-8mm.
Preferably, the aeration tube of the aerator is evenly distributed on the bottom of the MBBR aerobic reaction tanks.By upper
The mode of stating can cause aeration in the MBBR aerobic reaction tanks uniform, so that it is guaranteed that the reaction in the MBBR aerobic reaction tanks
It is more uniform, intensified response efficiency.
This utility model additionally provides a kind of synchronous nitration and denitrification sewage disposal system based on MBBR, including main control
Circuit, ammonia nitrogen detection means and the described synchronous nitration and denitrification sewage-treatment plant based on MBBR, the ammonia nitrogen detection dress
Put and be arranged in the MBBR aerobic reaction tanks and detect the ammonia nitrogen concentration in the MBBR aerobic reaction tanks, the main control electricity
Road is electrically connected with the ammonia nitrogen detection means and aerator respectively.
Can be realized with the ammonia nitrogen concentration in MBBR aerobic reaction tanks described in real-time detection by the ammonia nitrogen detection means
The monitor in real time of ammonia nitrogen concentration in the MBBR aerobic reaction tanks, and the main control circuit examined according to the ammonia nitrogen detection means
The ammonia nitrogen concentration of survey controls the power of the aerator, realizes the dynamic equilibrium of aeration rate and ammonia nitrogen concentration.
A kind of synchronous nitration and denitrification sewage-treatment plant and system based on MBBR of the present utility model, improves existing city
The nitrification and nitric efficiency of town sewage treatment plant, improves the synchronous nitration and denitrification performance of system, reduces the energy of nitrification liquid backflow
Consumption and cost, with easy, easy to maintain and installation of upgrading, load resistance ability is strong, sludge age length, denitrification effect are good, operating cost
Low feature.
Preferred embodiment of the present utility model is the foregoing is only, it is not to limit this utility model, all in this practicality
Within new spirit and principle, any modification, equivalent substitution and improvements made etc. should be included in guarantor of the present utility model
Within the scope of shield.
Claims (10)
1. a kind of synchronous nitration and denitrification sewage-treatment plant based on MBBR, it is characterised in that：Including regulating reservoir, anoxic pond,
MBBR aerobic reaction tanks, aerator, second pond and coagulative precipitation tank, treatment sewage are passed through the regulating reservoir by pipeline
In, the anoxic pond is located at the gap side of the regulating reservoir, and collects from the regulating reservoir sewage for overflowing, the MBBR
Aerobic reaction tank is arranged on the outlet side of the anoxic pond, and the sewage self-flowing in the anoxic pond after anoxic treatment
Into in the MBBR aerobic reaction tanks, the aeration tube of the aerator is placed in the bottom of the MBBR aerobic reaction tanks, and
Air Exposure is carried out to the sewage in the MBBR aerobic reaction tanks, the second pond is arranged on the MBBR aerobic reaction tanks
Reacted sewage in outlet side, and the MBBR aerobic reaction tanks is precipitated in the second pond, described
Supernatant after sedimentation in secondary sedimentation tank is separated enters the coagulative precipitation tank, and the activated sludge after precipitate and separate is entered by reflux line
Enter in the anoxic pond.
2. a kind of synchronous nitration and denitrification sewage-treatment plant based on MBBR according to claim 1, it is characterised in that：Institute
State and in regulating reservoir and anoxic pond, be mounted at least one mechanical stirring device, the mechanical stirring device is to into the regulation
Sewage in pond or anoxic pond is stirred makes its uniform mixing.
3. a kind of synchronous nitration and denitrification sewage-treatment plant based on MBBR according to claim 2, it is characterised in that：Institute
State, the downflow weir is provided with multiple spout holes, and when the sewage level in the regulating reservoir is high
When the spout hole, sewage meeting overflow is entered in the anoxic pond.
4. a kind of synchronous nitration and denitrification sewage-treatment plant based on MBBR according to claim 2, it is characterised in that：Institute
State to be provided with to carry out shunting process by the sewage being passed through in regulating reservoir and enter water diverter.
5. a kind of synchronous nitration and denitrification sewage-treatment plant based on MBBR according to claim 1, it is characterised in that：Institute
State and in second pond and coagulative precipitation tank, be provided with mud equipment of scraping, it is described scrape mud equipment by the activated sludge after precipitate and separate scrape into
In corresponding heavy bucket.
6. a kind of synchronous nitration and denitrification sewage-treatment plant based on MBBR according to claim 1, it is characterised in that：
The MBBR aerobic reaction tanks are built with floating stuffing.
7. a kind of synchronous nitration and denitrification sewage-treatment plant based on MBBR according to claim 6, it is characterised in that：Also
Including sludge pump, the sludge pump is arranged on the reflux line and will be the activated sludge after sedimentation in secondary sedimentation tank separation defeated
Deliver in the anoxic pond；
Vertically it is provided with for preventing the floating stuffing from entering the coagulative precipitation tank near outlet side in the second pond
Screen cloth.
8. a kind of synchronous nitration and denitrification sewage-treatment plant based on MBBR according to claim 7, it is characterised in that：Institute
It is stainless steel to state screen cloth, and the mesh size of the screen cloth is less than the size of the floating stuffing.
9. a kind of synchronous nitration and denitrification sewage-treatment plant based on MBBR according to claim 7, it is characterised in that：Institute
State floating stuffing cylindrical, diameter range is 10-20mm, the mesh of the screen cloth is circle, and diameter range is 6-8mm.
10. a kind of synchronous nitration and denitrification sewage disposal system based on MBBR, it is characterised in that：Including main control circuit, ammonia
The synchronous nitration and denitrification sewage-treatment plant based on MBBR described in nitrogen detection means and any one of claim 1 to 9, it is described
Ammonia nitrogen detection means is arranged in the MBBR aerobic reaction tanks and detects the ammonia nitrogen concentration in the MBBR aerobic reaction tanks, institute
State main control circuit to electrically connect with the ammonia nitrogen detection means and aerator respectively.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107417040A (en) * | 2017-06-21 | 2017-12-01 | 安徽普氏生态环境工程有限公司 | A kind of sewage disposal system and its sewage water treatment method |
| CN110713307A (en) * | 2018-07-13 | 2020-01-21 | 北京安力斯环境科技股份有限公司 | A method for advanced treatment of township sewage combined with inlet and outlet water on the same side |
| CN111410318A (en) * | 2020-05-08 | 2020-07-14 | 江苏中路工程技术研究院有限公司 | Aeration-free MBBR device applied to sewage treatment of expressway service area |
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2016
- 2016-08-26 CN CN201620954890.4U patent/CN206143005U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107417040A (en) * | 2017-06-21 | 2017-12-01 | 安徽普氏生态环境工程有限公司 | A kind of sewage disposal system and its sewage water treatment method |
| CN110713307A (en) * | 2018-07-13 | 2020-01-21 | 北京安力斯环境科技股份有限公司 | A method for advanced treatment of township sewage combined with inlet and outlet water on the same side |
| CN111410318A (en) * | 2020-05-08 | 2020-07-14 | 江苏中路工程技术研究院有限公司 | Aeration-free MBBR device applied to sewage treatment of expressway service area |
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