CN109879403A - The sewage-treating reactor and microalgae culture system of three dimensional internal perforated grill carrier - Google Patents
The sewage-treating reactor and microalgae culture system of three dimensional internal perforated grill carrier Download PDFInfo
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- CN109879403A CN109879403A CN201910084558.5A CN201910084558A CN109879403A CN 109879403 A CN109879403 A CN 109879403A CN 201910084558 A CN201910084558 A CN 201910084558A CN 109879403 A CN109879403 A CN 109879403A
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- sewage
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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
Abstract
The invention discloses the sewage-treating reactors and microalgae culture system of three dimensional internal perforated grill carrier；The sewage-treating reactor of three dimensional internal perforated grill carrier, including shell are respectively arranged with sewage inlet and outlet of sewer at the top and bottom of shell；It is characterized by: being vertically arranged with homogenizing plate and 3-dimensional multi-layered perforated grill carrier in the shell, the homogenizing plate is located at the lower section of sewage inlet, and 3-dimensional multi-layered perforated grill carrier is located at the lower section of homogenizing plate；Tree-shaped equal circulation road is provided on the homogenizing plate；The lower zone of the 3-dimensional multi-layered perforated grill carrier is gathering ground；The present invention is by sewage treatment, CO2Emission reduction and microalgae biomass culture organically combine, and can make full use of vertical space, reduce system footprint area, and increase the adhesion-tight degree of microalgae biomembrane；It is widely portable to a variety of sewage types such as processing rural sewage, sanitary sewage, trade effluent.
Description
Technical field
The present invention relates to microalgae biology Membrance cuiture and the integrated systems of sewage treatment, more particularly to three dimensional internal porous web
The sewage-treating reactor and microalgae culture system of lattice carrier.
Background technique
With the development of human society, waste water that large-scale industrialization, chemurgy production and human lives' activity generate,
The discharge of exhaust gas directly threatens the ecological environment of human living, causes serious environmental pollution and weather deterioration problem.Its
In, CO2Discharge, according to measuring and calculating, Chinese discharge amount reaches 10151Mt within 2016, accounts for the 28.1% of global emissions, occupies the world
First.Excessive CO in atmosphere2Earth surface infrared emanation can be hindered to return to cosmic space, so as to cause earth surface temperature
Rise, causes the environmental problems such as global warming.Discharge for waste water, according to incomplete statistics, in 67, China Main Lakes,
80% or more lake is contaminated, and eutrophy type lake just accounts for 49.Water eutrophication can directly result in water quality deterioration,
Aquatile mortality brings a series of adverse effects to ecological environment.In the method for sewage treatment, physical-chemical process at
Sheet is higher, requires water quality treatment height, can generate secondary pollution problems；The biological treatments such as traditional activated sludge process are to battalion
The removal for supporting substance only has 20%-40%, and often water outlet need to be carried out advanced treating again can be only achieved discharge standard.And microalgae can be with
Using substances such as nitrogen, phosphorus in sewage as nutrient source, with the CO in exhaust gas2For carbon source, photosynthesis is carried out, is accumulating itself
Nitrogen, the phosphorus in sewage are removed while biomass, absorb greenhouse gases CO2, not only reduce the nutrients cost of microdisk electrode
Problem has more achieved the purpose that emission reduction except useless.
Microalgae is a kind of unicellular microorganism that high, the biological rate of photosynthetic rate is fast, environmental-friendly.The biology of mature microalgae
Matter can be used as the biomass product of a variety of high added values such as: lutein, astaxanthin, EPA, and as biodiesel, biology
The raw material of gas etc., emission reduction except it is useless while, the problem of production is conducive to the product of national economy, the energy shortage more solved.Cause
This, accumulation biomass increasingly becomes the research of international community while carrying out sewage treatment, greenhouse gases absorption using microalgae
Upsurge.Currently, microalgae processing sewerage mainly includes the floated processing system of microalgae and microalgae biological membrane type processing system.It is micro-
The floated sewage disposal system of algae is directly to be inoculated with microalgae cell in sewage, and microalgae is made to carry out floated life in sewage
It is long, while absorbed nitrogen, phosphorus etc. achieve the purpose that purify sewage.However, it is higher (such as rural sewage) to work as concentration of nitrogen and phosphorus in sewage
Or suspended particulate substance it is more when (such as municipal wastewater), being suspended in microalgae cell therein not only can be since culture solution translucency be insufficient
Nutrients intoxicating phenomenon but will occur in growthing lag, so that the subsequent growth to microalgae generates murder by poisoning, be unfavorable for continuing for sewage
Purification.On the other hand, in the floated sewage disposal system of microalgae, microalgae density is lower, for microalgae biomass harvesting and algae-moisture
From huge difficulty is brought, the cost of culture and the sewage treatment of microalgae is greatly increased.
Although the segregative microalgae biological membrane type sewage disposal system of water-algae however, Recent study person begins one's study,
It is that system structure is more single due to the weaker problem of adhesion-tight of the microalgae biomembrane on carrier, and at present, takes up an area face
Product is big, causes sewage treating efficiency and yield of biomass lower.Therefore, at the novel microalgae biomembrane sewage of Devoting Major Efforts To Developing microalgae
Reason system improves microalgae biological membrane type operation of sewage disposal system efficiency and biomass density yield, reduce its build operation at
This, becomes the important channel of bioanalysis sewage treatment large-scale promotion application.
Summary of the invention
Technical problem to be solved by the present invention lies in the sewage treatment for providing a kind of three dimensional internal perforated grill carrier is anti-
Answer device and microalgae culture system.
In order to solve the above-mentioned technical problem, first technical solution of the invention is: three dimensional internal perforated grill carrier
Sewage-treating reactor, including shell are respectively arranged with sewage inlet and outlet of sewer at the top and bottom of shell；Its feature exists
In: homogenizing plate and 3-dimensional multi-layered perforated grill carrier are vertically arranged in the shell, the homogenizing plate is located at sewage inlet
Lower section, 3-dimensional multi-layered perforated grill carrier is located at the lower section of homogenizing plate；Tree-shaped equal circulation road is provided on the homogenizing plate；Institute
The lower zone for stating 3-dimensional multi-layered perforated grill carrier is gathering ground.
Homogenizing plate with tree-shaped equal circulation road is fixed on the intracorporal corresponding region of sewage-treating reactor shell by the present invention,
It is in the leading portion in sewage treatment region, so that sewage is uniformly flowed into 3-dimensional multi-layered perforated grill carrier by homogenizing plate and carries out sewage
Processing, then it is flowed into gathering ground, so that sewage treating efficiency be made to improve.3-dimensional multi-layered perforated grill carrier is also used as microalgae simultaneously
The carrier of biomembrane apposition growth can make full use of vertical space.
The preferred embodiment of the sewage-treating reactor of three dimensional internal perforated grill carrier according to the present invention, described three
Tieing up multi-layer porous grid carrier is the transparent orifice plate with multilayer pore structure, is provided with the three of regular distribution on the transparent orifice plate
Tie up grid.
The structure can make full use of vertical space, reduce system footprint area, and increase the adhesion-tight of microalgae biomembrane
Degree.Meanwhile increasing the time of contact of sewage and biomembrane, reduce mass transfer resistance of the nutriment in sewage in biomembrane
Power makes the microalgae cell grown on it preferably absorb nutriment, reaches and improves wastewater purification efficiency and microalgae biomass
The dual purpose of amount.
Second technical solution of the invention is: a kind of sewage treatment of three dimensional internal perforated grill carrier and microdisk electrode
System, the system include water tank and several sewage-treating reactors, it is characterised in that: the water tank passes through water circulating pump
And effluent cycle pipeline leading portion is connect with the sewage inlet of all sewage-treating reactors；All sewage-treating reactors
Outlet of sewer pass through effluent cycle pipeline back segment and connect the water tank.
Aerator is provided in the water tank；The aerator is connected to by gas circuit with gas source.
The sewage-treating reactor includes shell, and sewage inlet is respectively set at the top and bottom of shell and sewage goes out
Mouthful；Homogenizing plate and 3-dimensional multi-layered perforated grill carrier are vertically arranged in the shell, the homogenizing plate is located at sewage inlet
Lower section, 3-dimensional multi-layered perforated grill carrier is located at the lower section of homogenizing plate；Tree-shaped equal circulation road is provided on the homogenizing plate；Institute
The lower zone for stating 3-dimensional multi-layered perforated grill carrier is gathering ground.
The sewage treatment of three dimensional internal perforated grill carrier according to the present invention and the preferred side of microalgae culture system
Case, the 3-dimensional multi-layered perforated grill carrier are the transparent orifice plate with multilayer pore structure, are provided with rule on the transparent orifice plate
The three-dimensional grid being then distributed.
The sewage treatment of three dimensional internal perforated grill carrier according to the present invention and the preferred side of microalgae culture system
Case, the system further include pH on-line checking and regulating device；In the pH on-line checking and regulating device real-time detection water tank
The pH value of sewage, and by feedback regulation, by wastewater pH control between 6-8.Be conducive to microalgae biofilm development, mention simultaneously
High sewage treating efficiency.
The sewage-treating reactor of three dimensional internal perforated grill carrier of the present invention and microalgae culture system it is beneficial
Effect is: the present invention is by sewage treatment, CO2Emission reduction and microalgae biomass culture organically combine, and can make full use of vertical space, subtract
Mini system occupied area, and increase the adhesion-tight degree of microalgae biomembrane；Pass through sewage uniformly at grid carrier simultaneously
Region is managed, the time of contact of sewage and biomembrane is increased, reduces resistance to mass tranfer of the nutriment in sewage in biomembrane, and
So that the microalgae cell grown on it is preferably absorbed nutriment, reaches and improve sewage purification and waste gas absorption efficiency and microalgae
The multipurpose of biological quality is widely portable to a variety of sewage types such as processing rural sewage, sanitary sewage, trade effluent.
Detailed description of the invention
Fig. 1 is the sewage treatment and microalgae culture system structural representation of three dimensional internal perforated grill carrier of the present invention
Figure.
Fig. 2 is the structural schematic diagram of the sewage-treating reactor of three dimensional internal perforated grill carrier of the present invention.
Fig. 3 a is that mesh shape is hexahedral structural schematic diagram in the 3-dimensional multi-layered perforated grill carrier 15.
Fig. 3 b is that mesh shape is tetrahedral structural schematic diagram in the 3-dimensional multi-layered perforated grill carrier 15.
In attached drawing: 1-gas source；2-gas mass flow meters；3-gas circuits；4-aerators；5-pH on-line checkings and
Regulating device；6-effluent cycle pipeline leading portions；7-water circulating pumps；8-sewage-treating reactors；After 9-effluent cycle pipelines
Section；10-water tanks；11-sewage inlets；12-shells；13-homogenizing plates；14-tree-shaped equal circulation roads；15-is 3-dimensional multi-layered
Perforated grill carrier；16-gathering grounds；17-outlets of sewer.
Specific embodiment
Below with reference to test example and specific embodiment, the present invention is described in further detail.But this should not be understood
It is all that this is belonged to based on the technology that the content of present invention is realized for the scope of the above subject matter of the present invention is limited to the following embodiments
The range of invention.
Embodiment 1: referring to fig. 2, the sewage-treating reactor of three dimensional internal perforated grill carrier, including shell 12, shell
12 top and bottom are respectively arranged with sewage inlet 11 and outlet of sewer 17；Homogenizing plate is vertically arranged in the shell 12
13 and 3-dimensional multi-layered perforated grill carrier 15, the homogenizing plate 13 be located at the lower section of sewage inlet 11,3-dimensional multi-layered perforated grill
Carrier 15 is located at the lower section of homogenizing plate 13；Tree-shaped equal circulation road 14 is provided on the homogenizing plate 13；It is described 3-dimensional multi-layered porous
The lower zone of grid carrier 15 is gathering ground 16.
The 3-dimensional multi-layered perforated grill carrier 15 is the transparent orifice plate with multilayer pore structure.It is described 3-dimensional multi-layered more
Grid of holes carrier is the key component of this system, is designed and produced by 3D printing or other micro fabrications, according to system institute
The sewage type and microorganism used therefor type that need to handle and determination, be the multi-layer porous transparent network with certain geometry
It is also the main place of sewage treatment that checkerwork cell plate, which is the carrier of microalgae biomembrane apposition growth,.Mesh shape includes regular shape
Hexahedral mesh, tetrahedral grid etc., can not also be advisable for specification framework grid, fenestral porosity size with 2mm-3mm, it is three-dimensional
The number of plies of multi-layer porous grid carrier 15, which is 3-5 layers, to be advisable, can be using transparent photosensitive resin, nylon, plastics or titanium steel etc.
Material production.The homogenizing plate is the homogenizing plate with tree-shaped runner, width and 3-dimensional multi-layered 15 width of perforated grill carrier
Identical, the shell 12 of sewage-treating reactor is made of translucent material.
Embodiment 2. is referring to Fig. 1, Fig. 2, Fig. 3 a and Fig. 3 b, the sewage treatment of a kind of three dimensional internal perforated grill carrier and micro-
Algae culture systems, the system include water tank 10, pH on-line checking and regulating device 5 and several sewage-treating reactors 8, institute
It states water tank 10 and passes through water circulating pump 7 and the sewage inlet of effluent cycle pipeline leading portion 6 and all sewage-treating reactors 8
11 connections；The outlet of sewer 17 of all sewage-treating reactors 8 connects the water tank by effluent cycle pipeline back segment 9
10。
It is uniformly distributed in the water tank 10 and is provided with aerator 4；The aerator 4 is connected by gas circuit 3 and gas source 1
It is logical；Gas mass flow meter 2 is provided in gas circuit 3.Certain density CO2 is blasted in water tank by gas circuit by aerator, and
It is dissolves uniformly in sewage.It enters in sewage-treating reactor as carbon source with sewage for the photosynthetic growth of microalgae later.
The sewage-treating reactor 8 includes shell 12, and 11 He of sewage inlet is respectively set in the top and bottom of shell 12
Outlet of sewer 17；Homogenizing plate 13 and 3-dimensional multi-layered perforated grill carrier 15 are vertically arranged in the shell 12, it is described to flow
Plate 13 is located at the lower section of sewage inlet 11, and 3-dimensional multi-layered perforated grill carrier 15 is located at the lower section of homogenizing plate 13；The homogenizing plate
Tree-shaped equal circulation road 14 is provided on 13；The lower zone of the 3-dimensional multi-layered perforated grill carrier 15 is gathering ground 16.
The 3-dimensional multi-layered perforated grill carrier 15 is the transparent orifice plate with multilayer through-hole skeleton structure, the transparent orifice plate
On be provided with several through-hole type grids.
The pH value of sewage in 5 real-time detection water tank 10 of the pH on-line checking and regulating device, and pass through feedback regulation,
By wastewater pH control between 6-8.
Embodiment 3, the sewage treatment of three dimensional internal perforated grill carrier and the application of microalgae culture system:
The seeded process of microalgae biomembrane is completed first in sewage-treating reactor 8.That is: certain density microalgae is thin
Born of the same parents' suspension uniformly flows into 3-dimensional multi-layered perforated grill carrier 15 along tree-shaped equal circulation road 14 by sewage inlet 11.It suspends
Under microalgae cell in liquid is Van der Waals force, electrostatic force, the Hydration Force the effects of, it is attached to 3-dimensional multi-layered perforated grill carrier 15
On rib.Since grid carrier has the structure of porous multilayer, it can protect with buffering liquid flowing water power shearing force and be attached to rib
On microalgae cell, to increase the adhesion amount of microalgae cell on the adhesion-tight and carrier of microalgae biomembrane, when making inoculation
Between greatly shorten.
Later, the sewage-treating reactor 8 for completing inoculation is connected on circulation waterway, sewage inlet 11 and effluent cycle
Pipeline leading portion 6 is connected, and outlet of sewer 17 is connected with effluent cycle pipeline back segment 9.The connection quantity of sewage-treating reactor 8 can root
It is determined according to nutrient concentrations to be processed in the total amount and sewage of processing sewage.
In the entire system, CO2, via the control of gas mass flow meter 2, is reached from 1 gas cylinder of gas source by gas circuit 3
Aerator 4, to guarantee that gas is evenly distributed, aerator 4 is uniformly arranged in the bottom of storage tank, the distribution of aerator surface
There is venthole, gas is entered in the form of bubble in water tank 4.It is sewage to be processed in water tank 4, gas is dissolved in dirt
In water, make the nutriments such as N, P needed for not only having micro algae growth in sewage, also containing carbon source necessary to photosynthesis.It
Afterwards, sewage enters in sewage-treating reactor 8 along effluent cycle pipeline leading portion 6 under the action of water circulating pump 7.Via tree
The equal circulation road 14 of shape uniformly flows into 3-dimensional multi-layered perforated grill carrier 15.Due to multi-layer porous network, sewage is in dirt
Residence time in water processing reactor 8 increases, and is uniformly adhered on each layer rib of grid for microalgae biomembrane, when sewage is equal
Even sewage can preferably be contacted with microalgae biomembrane when flowing through each layer grid, and the reaction time is sufficient, improve the middle nutrition of sewage
Substance and the absorption for dissolving carbon source, to improve system emission reduction except useless efficiency.Processed sewage is pooled to sewage treatment
In the gathering ground 16 of reactor 8, effluent cycle pipeline back segment 9 is then imported from outlet of sewer 17 and is returned in water tank 10, then
Into next circulation.
Since the optimum PH range of microalgae biofilm development is that 6-8 will affect microalgae when pH value of sewage water is too low or excessively high
The growth of biomembrane, to influence the operational efficiency of system.Therefore using pH on-line checking and regulating device 5 to water tank 10
Center is measured in real time the pH value of sewage, and by feedback regulation, employing concentration certainly will for the HCl or NaOH solution of 1M
The pH value of sewage is adjusted into 6-8, so that whole system emission reduction with higher always is removed useless efficiency, is also made microalgae biomass
Growth rate it is best.
After completing a sewage treatment period (being advisable for 7-10 days), to what is accumulated on 3-dimensional multi-layered perforated grill carrier 15
Microalgae biomass carries out convection drying, shakes off harvesting.Biomass after collection can be used for biodiesel produce and high added value
The production etc. of product.
The above description is only a preferred embodiment of the present invention, is not intended to restrict the invention, although with reference to the foregoing embodiments
Invention is explained in detail, for those skilled in the art still can be to skill documented by foregoing embodiments
Art scheme is modified or equivalent replacement of some of the technical features.All within the spirits and principles of the present invention,
Any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.
Claims (5)
1. the sewage-treating reactor of three dimensional internal perforated grill carrier, including shell (12), the top and bottom of shell (12)
It is respectively arranged with sewage inlet (11) and outlet of sewer (17)；It is characterized by: being vertically arranged in the shell (12)
Flowing plate (13) and 3-dimensional multi-layered perforated grill carrier (15), the homogenizing plate (13) are located at the lower section of sewage inlet (11), three-dimensional
Multi-layer porous grid carrier (15) is located at the lower section of homogenizing plate (13)；Tree-shaped equal circulation road is provided on the homogenizing plate (13)
(14)；The lower zone of the 3-dimensional multi-layered perforated grill carrier (15) is gathering ground (16).
2. the sewage-treating reactor of three dimensional internal perforated grill carrier according to claim 1, it is characterised in that: described
3-dimensional multi-layered perforated grill carrier (15) is the transparent orifice plate with multilayer pore structure, is arranged regular point on the transparent orifice plate
The three-dimensional grid of cloth.
3. sewage treatment and the microalgae culture system of a kind of three dimensional internal perforated grill carrier, the system include water tank (10) and
Several sewage-treating reactors (8), it is characterised in that: the water tank (10) passes through water circulating pump (7) and effluent cycle
Pipeline leading portion (6) is connect with the sewage inlet (11) of all sewage-treating reactors (8)；All sewage-treating reactors
(8) outlet of sewer (17) connects the water tank (10) by effluent cycle pipeline back segment (9)；
Aerator (4) are provided in the water tank (10)；The aerator (4) is connected by gas circuit (3) and gas source (1)
It is logical；
The sewage-treating reactor (8) includes shell (12), and sewage inlet is respectively set at the top and bottom of (12) in shell
(11) and outlet of sewer (17)；Homogenizing plate (13) and 3-dimensional multi-layered perforated grill carrier are vertically arranged in the shell (12)
(15), the homogenizing plate (13) is located at the lower section of sewage inlet (11), and 3-dimensional multi-layered perforated grill carrier (15) is located at homogenizing plate
(13) lower section；Tree-shaped equal circulation road (14) is provided on the homogenizing plate (13)；The 3-dimensional multi-layered perforated grill carrier
(15) lower zone is gathering ground (16).
4. sewage treatment and the microalgae culture system of three dimensional internal perforated grill carrier according to claim 3, feature
Be: the 3-dimensional multi-layered perforated grill carrier (15) is the transparent orifice plate with multilayer pore structure, is set on the transparent orifice plate
It is equipped with the three-dimensional grid of regular distribution.
5. sewage treatment and the microalgae culture system of three dimensional internal perforated grill carrier according to claim 3, feature
Be: the system further includes pH on-line checking and regulating device (5)；The pH on-line checking and regulating device (5) real-time detection
The pH value of water tank (10) interior sewage, and by feedback regulation, by wastewater pH control between 6-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910084558.5A CN109879403A (en) | 2019-01-29 | 2019-01-29 | The sewage-treating reactor and microalgae culture system of three dimensional internal perforated grill carrier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910084558.5A CN109879403A (en) | 2019-01-29 | 2019-01-29 | The sewage-treating reactor and microalgae culture system of three dimensional internal perforated grill carrier |
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| CN109879403A true CN109879403A (en) | 2019-06-14 |
Family
ID=66927208
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111018093A (en) * | 2019-12-25 | 2020-04-17 | 柏中环境科技（上海）有限公司 | Reactor capable of realizing layering and approaching real plug flow condition and treatment method thereof |
| CN111254078A (en) * | 2020-03-16 | 2020-06-09 | 中南大学湘雅二医院 | Honeycomb support plate for in-vitro culture of hepatic cells and bioreactor for artificial liver |
| CN112852588A (en) * | 2021-01-23 | 2021-05-28 | 重庆大学 | Light-guiding three-dimensional porous biological membrane substrate reactor and method for culturing microalgae biological membrane |
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| CN205294969U (en) * | 2015-12-07 | 2016-06-08 | 中国农业大学 | System for handle water -soluble fertile waste water of animal manure with little algae |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN205294969U (en) * | 2015-12-07 | 2016-06-08 | 中国农业大学 | System for handle water -soluble fertile waste water of animal manure with little algae |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111018093A (en) * | 2019-12-25 | 2020-04-17 | 柏中环境科技（上海）有限公司 | Reactor capable of realizing layering and approaching real plug flow condition and treatment method thereof |
| CN111254078A (en) * | 2020-03-16 | 2020-06-09 | 中南大学湘雅二医院 | Honeycomb support plate for in-vitro culture of hepatic cells and bioreactor for artificial liver |
| CN111254078B (en) * | 2020-03-16 | 2020-10-30 | 中南大学湘雅二医院 | Honeycomb support plate for in-vitro culture of hepatic cells and bioreactor for artificial liver |
| CN112852588A (en) * | 2021-01-23 | 2021-05-28 | 重庆大学 | Light-guiding three-dimensional porous biological membrane substrate reactor and method for culturing microalgae biological membrane |
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Application publication date: 20190614 |
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