CN208151054U - A kind of conveyor type bacterium algae rotating biological membrane reactor - Google Patents
A kind of conveyor type bacterium algae rotating biological membrane reactor Download PDFInfo
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- CN208151054U CN208151054U CN201820091912.8U CN201820091912U CN208151054U CN 208151054 U CN208151054 U CN 208151054U CN 201820091912 U CN201820091912 U CN 201820091912U CN 208151054 U CN208151054 U CN 208151054U
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- microalgae
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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Abstract
A kind of conveyor type bacterium algae rotating biological membrane reactor is frustule to be attached to adherent material, and be fixed on vertical conveyor-belt apparatus, rotates on nutriment waste water abundant and rich in CO2Air in, microalgae film it is long to certain thickness when through scraper harvesting as microalgae fertilizer, microalgae recovery cost can be reduced and increased economic efficiency.Rotating biological membrane reactor mainly includes activated Sludge System and conveyor type rotation algae biofilm system, it is on the basis of conventional activated sludge process, microalgae waste water treatment system is incorporated, both the efficiently nutrients such as COD, N, P of removal waste water, while the CO that the microbial metabolism in activated sludge generates2It can promote micro algae growth, microalgae photosynthesis provides O for Microbial Communities in Activated Sludge2And part reduces aeration energy consumption, the presence of microalgae can partially reduce residual active sludge amount.
Description
Technical field
The utility model relates to a kind of conveyor type bacterium algae rotating biological membrane reactors, particularly belong to wastewater processing technology neck
Domain.
Background technique
Traditional activated sludge process during handling waste water, is grown for the purpose of simple purify water
The air blast of time, mechanical aeration or joint the aeration microorganism into waste water provide oxygen with nutriment of degrading, this process needs
A large amount of electric energy is consumed, is the method for one " can consume energy ".In the process of Microbial Communities in Activated Sludge decomposing organic waste
In, it will also release the CO of microbial respiratory generation2It is discharged into air, exacerbates greenhouse effects.In addition, standard activity is dirty
Mud method waste water treatment process surplus sludge volume is about the 1.5% of incoming waste water amount, enormous amount, and subsequent processing disposition is also
One global problem.
Since the last century 50's, microalgae has obtained the extensive concern of researcher to the removal ability of N, P in waste water,
Different from bacterium, algae can remove N and P simultaneously, and technological operation is simpler.Frustule to the mechanism of absorption of P especially efficiently and
Prominent, demand of the P that it is absorbed from environment far more than its normal growth to orthophosphates, excessive P is absorbed by frustule, is long-pending
It is poly-.This unique function greatly improves microalgae to the removal efficiency of Phosphorus From Wastewater.Therefore simple microalgae system or bacterium algae
The introducing of system becomes the new approaches for solving traditional activated sludge process advanced treating difference organic wastewater limitation, such as tall building in recent years
Door university Li Qing young tiger et al. discloses one kind《For handling membrane type bioreactor and its processing side of the exceeded nitrogen phosphorus of biogas slurry
Method》（CN103910434）, method characteristic is that cultured microalgae and biogas slurry is inside and outside in cylindrical, hollow tunica fibrosa
It recycles respectively, absorbs nitrogen phosphorus in biogas slurry using microalgae and achieve the purpose that wastewater treatment.However the harvesting of microalgae is always at microalgae
The limiting factor of waste water is managed, this is because caused by microalgae individual is small and cell surface is negatively charged, studies have shown that big rule
Microalgae recovery cost accounts for about 20% of totle drilling cost or more in mould incubation.Research at this stage mostly uses microalgae Immobilized culture
To achieve the purpose that reduce harvesting cost in the treatment of waste water.Such as Zhao Yongjun application patent《A kind of bacterium algae handling biogas slurry
Cogeneration system and its application》（CN106219765A）, disclose a kind of by microalgae and fungi immobilized spherule processing biogas slurry waste water
Method, however this method need in addition addition chemical agent to form helotism ball, increase processing cost.University Of Nanchang
Small pellet of witch et al. discloses《A kind of photo-biological membrane reactor and the application in sewage treatment, carbon sequestration and microalgae recovery》
（CN107012072A）, the invention by be traditional waste water recycled on membrane material in the way of, utilize the film of vertical hanging
Material High Density Cultivation microalgae simultaneously removes nutriment in waste water, scrapes harvesting microalgae finally by simple and mechanical receipts.It is disclosed above
Invention in be all made of the mode of liquid circulation, i.e., " hydrodynamic(al) film is motionless ", liquid circulation process needs a large amount of energy consumption, and
Liquid circulation can limit the CO of microalgae cell to a certain extent2Fixed efficiency, although Wu little Dan et al. uses CO2Container system
System is to improve gas transfer rate, but the system also needs energy consumption to run.
The utility model provides a kind of conveyor type bacterium algae rotating biological membrane reactor, can effectively overcome the above problem,
The utility model originally uses the design of rotation film mode, i.e. " it is motionless that film moves water ", slowly rotates out of waste water in algae film
It is greatly improved the carbon sequestration efficiency of microalgae when exposing in air outside, and makes full use of light source, since rotation speed is slow, is
Energy consumption needed for uniting is lower.Therefore the utility model can not only high efficiency, low cost ground microalgae biomass, moreover it is possible to efficiently go to decontaminate
COD, N and P in water, while aeration energy consumption needed for traditional activated sludge process is greatly reduced, and activated sludge process discharge
CO2It can be absorbed and utilized by microalgae photosynthesis, reduce CO2Discharge amount can partially reduce while by helotism system
The discharge amount of excess sludge, the microalgae to reach the maximization of sewage treatment benefit, and after harvesting can be used for preparing micro-
Algae fertilizer improves its economy and society value.
Summary of the invention
To overcome traditional activated sludge process to handle waste water and microalgae recovery existing deficiency in the process, the utility model proposes
A kind of conveyor type bacterium algae rotating biological membrane reactor system, the reactor not only can microalgaes at low cost, moreover it is possible to
Wastewater treatment efficiency is improved, aeration energy consumption and CO in treatment process are reduced2Discharge amount, while part reduces excess sludge and produces
Amount realizes the purpose that sewage recycling utilizes, and solves conventional activated sludge process nitrogen phosphorus ligands low efficiency, energy consumption is high, CO2Discharge
The problems such as amount is big, and excess sludge production is big, difficult, and the microalgae after harvesting can be used as microalgae fertilizer, improve economy and society
Benefit.
A kind of conveyor type bacterium algae rotating biological membrane reactor of the utility model includes activated Sludge System and conveyor type
Rotate algae biofilm system two parts.
The activated Sludge System main body is aeration tank（1）, further include activated sludge（2）And air blower（3）, Yi Jiwei
In aeration tank（1）The aeration branch pipe of bottom（4）It is responsible for aeration（5）；Aeration supervisor（5）With air blower（3）Air outlet it is direct
Connection；Aeration branch pipe（4）It is distributed in aeration supervisor（5）Two sides, entire aerating pipelines are distributed in aeration tank（1）Interior bottom, and
Not in activated sludge（2）Below liquid level.
The conveyor type rotation algae biofilm system includes supporting steel frame（6）, shaft（7）, dynamic conveyor belt（8）,
Scraper（9）, microalgae collecting tank（10）, motor（11）With algae film（12）；Shaft（7）It is fixed on supporting steel frame（6）On, guarantee system
Main body is in vacant state；Motor（11）It is set up in supporting steel frame（6）Top passes through dynamic conveyor belt（8）With shaft（7）Even
It connects, and passes through motor in system operation（11）Drive dynamic conveyor belt（8）Operating, shaft（7）Also it and then operates together, thus
Drive algae film（12）Operating.
Microalgae collecting tank（10）It is fixed on supporting steel frame（6）On, scraper（9）With microalgae collecting tank（10）It is connected and close to algae
Film（12）And it is angled, when algae film（12）On micro algae biomass accumulation to certain thickness when can pass through and adjust scraper（9）
Harvesting microalgae is in microalgae collecting tank.
The activated Sludge System is placed in the lower section of conveyor type rotation algae biofilm system, lower section shaft（7）And algae
Film（12）It is submerged in aeration tank（1）Waste water in.
The beneficial effects of the utility model：The utility model has been incorporated micro- on the basis of conventional activated sludge process
Algae waste water treatment system, and originally use rotation film mode and design, COD, N and P in sewage can not only be efficiently removed,
And due to the form of " film move water motionless ", energy consumption needed for the system is lower；It can high efficiency, low cost ground microalgae by rotation film
Biomass, and aeration energy consumption needed for traditional activated sludge process is greatly reduced, and the CO of traditional activated sludge process discharge2It can quilt
Microalgae photosynthesis is absorbed and utilized, and reduces CO2Discharge amount can partially reduce excess sludge while by helotism system
Discharge amount, thus reach traditional wastewater processing maximizing the benefits.Microalgae after harvesting can also act as microalgae fertilizer, improve its warp
Ji and social value.
Detailed description of the invention
Fig. 1：The main view of the utility model activated Sludge System；
In figure：1, aeration tank；2, activated sludge；3, air blower；
Fig. 2：The top view of the utility model activated Sludge System；
In figure：4, aeration branch pipe；5, aeration supervisor；
Fig. 3：The main view of the utility model conveyor type rotation algae biofilm system；
In figure：6, supporting steel frame；7, shaft；8, dynamic conveyor belt, 9, scraper；10, microalgae collecting tank；
Fig. 4：The top view of the utility model conveyor type rotation algae biofilm system；
In figure：11, motor；12, algae film；
Fig. 5：The utility model conveyor type bacterium algae rotating biological membrane reactor structural schematic diagram；
Fig. 6：The utility model reactor from control pond different hydraulic detention times total tp removal rate figure；
In figure：Abscissa is system type, and ordinate is total tp removal rate（mg/L/d）, HRT is hydraulic detention time, always
Tp removal rate：The total phosphorus content that reactor unit volume removes daily；
Fig. 7：The utility model reactor from control pond different hydraulic detention times total phosphorus removal efficiency figure；
In figure：Abscissa is system type, and ordinate is total phosphorus removal efficiency（%）, HRT is hydraulic detention time, total phosphorus
Removal efficiency：The percentage of total phosphorus is removed in waste water；
Fig. 8：The utility model reactor from control pond different hydraulic detention times total phosphorus removal ability figure；
In figure：Abscissa is system type, and ordinate is total tp removal rate（mg/L/d）, HRT is hydraulic detention time, always
Phosphorus ligands ability：The total phosphorus content that unit occupied area removes daily.
Specific embodiment
Below with reference to attached drawing, the preferred embodiment of the utility model is described in detail：It should be appreciated that preferably real
Example is applied only for illustrating the utility model, rather than in order to limit the protection scope of the utility model.
Embodiment 1
A kind of conveyor type bacterium algae rotating biological membrane reactor of the present embodiment includes activated Sludge System and conveyor type rotation
Turn algae biofilm system two parts.
Activated Sludge System main body is aeration tank（1）, further include activated sludge（2）And air blower（3）, and it is located at aeration
Pond（1）The aeration branch pipe of bottom（4）It is responsible for aeration（5）.
Aeration supervisor（5）With air blower（3）Air outlet be directly connected to, can be connected when necessary by additional pipeline.
Aeration branch pipe（4）It is distributed in aeration supervisor（5）Two sides, entire aerating pipelines are distributed in aeration tank（1）Interior bottom,
And not in activated sludge（2）Below liquid level.
It includes supporting steel frame that conveyor type, which rotates algae biofilm system,（6）, shaft（7）, dynamic conveyor belt（8）, scraper
（9）, microalgae collecting tank（10）, motor（11）With algae film（12）.
Shaft（7）It is fixed on supporting steel frame（6）On, guarantee that system body is in vacant state.
Motor（11）It is set up in supporting steel frame（6）Top passes through dynamic conveyor belt（8）With shaft（7）Connection, and in system
Pass through motor when operation（11）Drive dynamic conveyor belt（8）Operating, shaft（7）Also it and then operates together, to drive algae film
（12）Operating.
Microalgae collecting tank（10）It is fixed on supporting steel frame（6）On, scraper（9）With microalgae collecting tank（10）It is connected and close to algae
Film（12）And it is angled, when algae film（12）On micro algae biomass accumulation to certain thickness when can pass through and adjust scraper（9）
Harvesting microalgae is in microalgae collecting tank.
Activated Sludge System is placed in below conveyor type rotation algae biofilm system when device is run, lower section shaft（7）And
Algae film（12）Aeration tank should be submerged in（1）Waste water in.
The utility model applying step is：
Step 1：The culture of microalgae
The microalgae to grow fine is transferred in micro-algae culture medium and is cultivated, is cultivated in illumination shaking table, intensity of illumination is
4000Lux, temperature are 28 DEG C, and revolving speed is 120 revs/min, obtain the algae solution that OD value is 2.
Step 2：Microalgae it is adherent
Step 1 is cultivated and is equably sprayed on adherent material after resulting algae solution dilutes 10 times by spray head.
Step 3：The formation of microalgae film
Adherent material after microalgae adherence is installed on shaft（7）On.
Step 4：The harvest of microalgae
It, can be by adjusting conveyer belt scraper when microalgae film grows to certain thickness（9）Microalgae on adherent material is scraped
Under, microalgae is collected in conveyer belt microalgae collecting tank（10）It is interior.
The device height of the conveyor type bacterium algae rotating biological membrane reactor is 2m；Hydraulic detention time be 1.3 days,
4.6 days and 7 days；The exploitation speed of conveyer belt is 4 revs/min；Aeration flow is 250 ml/mins；The adherent material of rotating biological film
The area of material is 12m2；7 days/time of the frequency of scraper microalgae.
Conveyor type bacterium algae rotating biological membrane reactor runtime environment temperature is 25 DEG C, intensity of illumination 6000Lux；It is micro-
Algae algae is chlorella；Micro-algae culture medium is BG-11 culture medium；Adherent material is pure cotton canvas.
Embodiment 2
To the removal effect of Phosphorus From Wastewater
By the chlorella to grow fine from test tube slant activation into BG-11 culture solution, in revolving speed be 120 revs/min,
Temperature is 28 DEG C, is cultivated 7 days in the illumination shaking table that intensity of illumination is 4000Lux, and it is close to obtain the higher cell that OD value is 0.8
Adherent material is soaked in algae solution and makes within 24 hours microalgae cell attachment and adherent material with cultivating under illumination condition by the algae solution of degree
On material, municipal wastewater and activated sludge are obtained in certain local municipal sewage plant, municipal wastewater is transferred to activated Sludge System
Aeration tank（1）In, while taken activated sludge is added, open air blower（3）Setting aeration quantity is 250 ml/mins, will be passed
It send belt rotation algae biofilm system to combine with the aerating system, algae biofilm system lower end is made to be immersed in the waste water of aeration tank
In, the transmission translator in starting rotation algae biofilm system（11）, while a control pond is set, only with activated Sludge System
It is handled, keeps system stable operation, and periodically sample detection variation of water.
Claims (1)
1. a kind of conveyor type bacterium algae rotating biological membrane reactor, it is characterised in that：The reactor includes activated sludge system
System and conveyor type rotate algae biofilm system two parts；
The activated Sludge System main body is aeration tank（1）, further include activated sludge（2）And air blower（3）, and be located at and expose
Gas pond（1）The aeration branch pipe of bottom（4）It is responsible for aeration（5）；Aeration supervisor（5）With air blower（3）Air outlet be directly connected to；
Aeration branch pipe（4）It is distributed in aeration supervisor（5）Two sides, entire aerating pipelines are distributed in aeration tank（1）Interior bottom, and not in work
Property sludge（2）Below liquid level；
The conveyor type rotation algae biofilm system includes supporting steel frame（6）, shaft（7）, dynamic conveyor belt（8）, scraper
（9）, microalgae collecting tank（10）, motor（11）With algae film（12）；Shaft（7）It is fixed on supporting steel frame（6）On, guarantee system body
In vacant state；Motor（11）It is set up in supporting steel frame（6）Top passes through dynamic conveyor belt（8）With shaft（7）Connection, and
Pass through motor in system operation（11）Drive dynamic conveyor belt（8）Operating, shaft（7）Also it and then operates together, to drive
Algae film（12）Operating；
Microalgae collecting tank（10）It is fixed on supporting steel frame（6）On, scraper（9）With microalgae collecting tank（10）It is connected and close to algae film
（12）And it is angled, when algae film（12）On micro algae biomass accumulation to certain thickness when can pass through and adjust scraper（9）It receives
Microalgae is obtained in microalgae collecting tank；
The activated Sludge System is placed in the lower section of conveyor type rotation algae biofilm system, lower section shaft（7）And algae film
（12）It is submerged in aeration tank（1）Waste water in.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820091912.8U CN208151054U (en) | 2018-01-19 | 2018-01-19 | A kind of conveyor type bacterium algae rotating biological membrane reactor |
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| CN201820091912.8U CN208151054U (en) | 2018-01-19 | 2018-01-19 | A kind of conveyor type bacterium algae rotating biological membrane reactor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110282746A (en) * | 2019-06-24 | 2019-09-27 | 南昌大学 | A kind of bacterium algae bioreactor |
| CN117125833A (en) * | 2023-08-30 | 2023-11-28 | 南京大学 | Compact rotary type algae biomembrane reactor |
-
2018
- 2018-01-19 CN CN201820091912.8U patent/CN208151054U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110282746A (en) * | 2019-06-24 | 2019-09-27 | 南昌大学 | A kind of bacterium algae bioreactor |
| CN117125833A (en) * | 2023-08-30 | 2023-11-28 | 南京大学 | Compact rotary type algae biomembrane reactor |
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