CN102453669A - Microalgae collecting device and microalgae collecting method - Google Patents
Microalgae collecting device and microalgae collecting method Download PDFInfo
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- CN102453669A CN102453669A CN201010529687XA CN201010529687A CN102453669A CN 102453669 A CN102453669 A CN 102453669A CN 201010529687X A CN201010529687X A CN 201010529687XA CN 201010529687 A CN201010529687 A CN 201010529687A CN 102453669 A CN102453669 A CN 102453669A
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M21/00—Bioreactors or fermenters specially adapted for specific uses
- C12M21/02—Photobioreactors
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M23/00—Constructional details, e.g. recesses, hinges
- C12M23/02—Form or structure of the vessel
- C12M23/04—Flat or tray type, drawers
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M23/00—Constructional details, e.g. recesses, hinges
- C12M23/34—Internal compartments or partitions
Abstract
The invention discloses a microalgae collecting device, comprising at least two layers of collecting plates which are separated from each other in a vertical direction, wherein a first end of each of the at least two layers of collecting plates is supported on a first rod, while a second end thereof is supported on a second rod respectively; the first end of each layer of the collecting plate is equipped with a convex corner for preventing deposited microalgae from flowing out; and the second end of each layer of the collecting plate is an opened end good for the microalgae to flow out. When microalgae is deposited, the second rods are pulled upwards so that each layer of the collecting plate is inclined at a first inclination angle with respect to the horizontal direction, in this way, microalgae is deposited at the convex corner at the first end of each layer of the collecting plate; and when microalgae is collected, the first rods are pulled upwards so that each layer of the collecting plate is inclined at a second inclination angle with respect to the horizontal direction, in this way, deposited microalgae flows into a photo-biologic reactor from the opened second end of each layer of the collecting plate. The microalgae collecting device and the microalgae collecting method disclosed by the invention shorten the deposition time of microalgae, and make enrichment and collection of the microalgae easy; in addition, the microalgae collecting device is simple in structure, and suitable for large-scale application.
Description
Technical field
The present invention relates to the production field of little algae, relate in particular to a kind of apparatus and method that are used to collect little algae.
Background technology
In the collection process of little algae, collecting little algae how efficiently, fast and cheaply is a global difficult problem.
Present little algae collection method has flocculence, filtration method, centrifuging and settling process etc.When using flocculence to collect little algae, need to add a certain amount of flocculation agent, flocculation agent or cost an arm and a leg perhaps contains heavy metal ion.Carry out little algae derived product when producing, the toxic heavy metal ion that need contain the flocculation agent that remains in little algae is removed processing, causes complex procedures, and cost is higher, therefore in the application that the little algae of reality is collected, significant limitation is arranged.Using filtration method to carry out little algae collection neither be easy to do; Because little frond is long-pending too little, utilizes common filter cloth and filter paper can't little algae be leached, and can only adopt micro-filtration and ultrafiltration mode at all; But micro-filtration and ultrafiltration mode are again because the too small easy blocking of filter pore; And make filtration procedure be difficult to carry out, there is the big drawback of energy consumption again, so also not good by industry in addition.Use centrifuging to collect little algae, collecting amount obviously improves, but energy consumption is huge, and cost is too high.
Generally adopt settling process to collect little algae at present: with algae liquid be passed into leave standstill about 24 hours in the opening shape settling bowl after; Little algae about 60% can be deposited to the bottom of settling bowl; Use pump to draw back method with the significantly supernatant of the step-down extraction of little algae content; Then the high algae liquid of little algae content that resides in the settling bowl bottom is carried out drying treatment, thereby collect little algae.Though it is easy and simple to handle that this method has, save the advantage of the energy, but still have following weak point:
1, the settling time long, influence working efficiency;
Though 2 can be through reducing settling bowl the mode of the degree of depth shorten settling height, thereby shorten the settling time, the volume that this can reduce settling bowl causes algae liquid treatment capacity little, still influences working efficiency.
Summary of the invention
The present invention provides a kind of little algae collection device, in order to solve at least one in the technical problem that exists in the prior art.
According to an aspect of the present invention, a kind of little algae collection device that is placed in the both culturing microalgae bioreactor is provided, is included in spaced two-layer at least collecting board on the above-below direction.First end of said two-layer at least collecting board is supported on respectively on first bar, and second end is supported on respectively on second bar; The first end place of said every layer of collecting board is formed with and prevents the effusive protruding bight of sedimentary little algae, the effusive open end of the for the benefit of little algae of second end of said every layer of collecting board; When the little algae of deposition, be pulled upwardly second bar and make said every layer of collecting board become first angle of inclination, thereby make little algae be deposited on the protruding bight at the first end place of every layer of collecting board with respect to inclined; And when collecting little algae, be pulled upwardly first bar and make said every layer of collecting board become second angle of inclination, thereby sedimentary little algae is flowed into the both culturing microalgae bioreactor from second end of the opening of every layer of collecting board with respect to inclined.
According to a preferred embodiment of the present invention; Near first end of every layer of collecting board, be formed with first hole; Said first bar passes said first hole, and below said first hole, inserts said first bar with pin, thereby first end of said every layer of collecting board is supported on said first bar; And near second end of every layer of collecting board, be formed with second hole, said second bar passes said second hole, and below said second hole, inserts said second bar with pin, thereby second end of said every layer of collecting board is supported on said second bar.
According to a further advantageous embodiment of the invention, the protruding bight at the first end place of every layer of said collecting board is formed by the edge that raises up.
According to a further advantageous embodiment of the invention, said first bar and second bar are open circles mast or filled circles mast.
According to a further advantageous embodiment of the invention, said every layer of collecting board is shaped as rectangle, square, circle or oval.
According to a further advantageous embodiment of the invention, said every layer of collecting board processed by materials such as Vestolen PP 7052, pvdf or SE.
According to a further advantageous embodiment of the invention, said first angle of inclination is 15 °～30 °.
According to a further advantageous embodiment of the invention, said second angle of inclination is 60 °～75 °.
According to another aspect of the present invention, a kind of little algae collection assembly that is placed in the both culturing microalgae bioreactor is provided also, comprises at least two above-mentioned little algae collection devices.
According to a further advantageous embodiment of the invention, described little algae collection assembly comprises first little algae collection device and second little algae collection device; Second end of second end of the opening of said first little algae collection device and the opening of said second little algae collection device is relative; And every layer of collecting board of said first little algae collection device and every layer of collecting board of said second little algae collection device stagger on above-below direction spaced reciprocally.
According to another aspect of the present invention, a kind of little algae collection method is provided also, comprises the steps:
S10: above-mentioned little algae collection device is placed in the both culturing microalgae bioreactor;
S20: be pulled upwardly second bar, make every layer of collecting board, and make every layer of collecting board keep static first scheduled time of first angle of inclination, thereby make little algae be deposited on the protruding bight at the first end place of every layer of collecting board with respect to inclined first angle of inclination;
S30: after treating little algae deposition, discharge the little algae clear liquor in the said both culturing microalgae bioreactor;
S40: put down second bar and be pulled upwardly first bar, make every layer of collecting board, thereby sedimentary little algae is flowed into the both culturing microalgae bioreactor from second end of the opening of every layer of collecting board with respect to inclined second angle of inclination;
S50: discharge the little algae in the said both culturing microalgae bioreactor, thereby accomplish the collection of little algae.
According to a further advantageous embodiment of the invention, between said step S10 and step S20, also comprise step:
S12: be pulled upwardly first bar; Make every layer of collecting board with respect to inclined the 3rd angle of inclination; In the both culturing microalgae bioreactor, add flocculation agent then and feed gas, thereby make flocculation agent and both culturing microalgae liquid uniform mixing to the bottom of both culturing microalgae bioreactor.
According to a further advantageous embodiment of the invention, said the 3rd angle of inclination can be preferably 60 °～75 ° in 0 °～90 ° scope.
According to a further advantageous embodiment of the invention, said flocculation agent is inorganic cation saline flocculating agent, organic type of flocculation agent of polymer or microbial flocculant.
According to a further advantageous embodiment of the invention, said flocculation agent is aluminium salt, molysite, gathers aluminium, gathers iron or chitosan etc.
According to another aspect of the present invention, a kind of little algae collection method is provided also, comprises the steps:
S10: above-mentioned little algae collection assembly is placed in the both culturing microalgae bioreactor;
S20: second bar that is pulled upwardly said at least two little algae collection devices; Make every layer of collecting board with respect to inclined first angle of inclination; And make every layer of collecting board keep static first scheduled time of first angle of inclination, thereby make little algae be deposited on the protruding bight at the first end place of every layer of collecting board;
S30: after treating little algae deposition, discharge the little algae clear liquor in the said both culturing microalgae bioreactor;
S40: put down second bar and be pulled upwardly first bar of said at least two little algae collection devices; Make every layer of collecting board with respect to inclined second angle of inclination, thereby sedimentary little algae is flowed into the both culturing microalgae bioreactor from second end of the opening of every layer of collecting board;
S50: discharge the little algae in the said both culturing microalgae bioreactor, thereby accomplish the collection of little algae.
In the present invention; Because the little algae collection device that adopts the angle of inclination to regulate is through regulating the angle of inclination of collecting board, the depositing time that is easy to realize the discharge of the enrichment of little algae frond, little algae liquid concentrator and has shortened little algae; And little algae collection device is simple in structure, is suitable for large-scale application.
Description of drawings
Fig. 1 shows the synoptic diagram that is placed on two little algae collection devices in the both culturing microalgae bioreactor according to a preferred embodiment of the present invention;
Fig. 2 shows the perspective view of two little algae collection devices among Fig. 1;
Fig. 3 shows the little algae collection device of among Fig. 2 sectional view along the vertical direction;
Fig. 4 shows the perspective view of a pair of adjacent collecting board of two little algae collection devices among Fig. 2;
Fig. 5 a-5b shows a kind of main process of little algae collection method; With
Fig. 6 a-6c shows the main process of another kind of little algae collection method.
Embodiment
Pass through embodiment below, and combine accompanying drawing, do further bright specifically technical scheme of the present invention.In specification sheets, same or analogous drawing reference numeral is indicated same or analogous parts.Following explanation to embodiment of the present invention is intended to present general inventive concept of the present invention is made an explanation with reference to accompanying drawing, and is not to be understood that to a kind of restriction of the present invention.
Fig. 1 shows the synoptic diagram that is placed on two little algae collection devices in the both culturing microalgae bioreactor according to a preferred embodiment of the present invention.
As shown in Figure 1, in both culturing microalgae bioreactor 10, be placed with a pair of little algae collection device, respectively first little algae collection device 100 and second little algae collection device 200.
But; Please note; The quantity of little algae collection device of in both culturing microalgae bioreactor 10, placing depends on the size of both culturing microalgae bioreactor 10; If both culturing microalgae bioreactor 10 is bigger, the quantity of little algae collection device of placement will increase thereupon, for example 3,4 or more a plurality of.If both culturing microalgae bioreactor 10 is smaller, the quantity of little algae collection device of placement also can be 1.
As shown in Figure 1, in a preferred embodiment, be provided with a bleed valve 20 in the bottom of both culturing microalgae bioreactor 10, be used to discharge little algae clear liquor and be used to discharge little algae liquid concentrator.
Fig. 2 shows the perspective view of two little algae collection devices among Fig. 1.As shown in Figure 2, first little algae collection device 100 is included in spaced two-layer at least collecting board 103 on the above-below direction.As shown in Figure 2, first end of two-layer at least collecting board 103 is supported on respectively on first bar 101, and second end is supported on respectively on second bar 102.
Fig. 4 shows the perspective view of a pair of adjacent collecting board of two little algae collection devices among Fig. 2.As shown in Figure 4; The first end place of every layer of collecting board 103 of first little algae collection device 100 is formed with and prevents the effusive protruding bight 103a of sedimentary little algae; And the second end 103b of every layer of collecting board 103 has no bossing, the effusive open end of for the benefit of little algae.
Similar with the first little algae collection device 100, please continue referring to Fig. 2, second little algae collection device 200 is included in spaced two-layer at least collecting board 203 on the above-below direction.As shown in Figure 2, first end of two-layer at least collecting board 203 is supported on respectively on first bar 201, and second end is supported on respectively on second bar 202.The first end place of every layer of collecting board 203 is formed with and prevents the effusive protruding bight 203a of sedimentary little algae, and the second end 203b of every layer of collecting board 203 has no bossing, the effusive open end of for the benefit of little algae.
Fig. 3 shows first little algae collection device 100 sectional view along the vertical direction among Fig. 2.As shown in Figures 2 and 3; Near first end (left end among Fig. 3) of every layer of collecting board 103 of first little algae collection device 100, be formed with first hole; First bar 101 passes first hole; And below first hole, insert first bar 101, thereby first end of every layer of collecting board 103 is supported on first bar 101 with pin 104; And near second end (right-hand member among Fig. 3) of every layer of collecting board 103, be formed with second hole; Second bar 102 passes second hole; And below second hole, insert second bar 102, thereby second end of every layer of collecting board 103 is supported on second bar 102 with pin 104.
Like Fig. 1 and shown in Figure 4; When in both culturing microalgae bioreactor 10, placing the first little algae collection device 100 and the second little algae collection device 200; Go out for the ease of spissated little algae flow, the second end 203b of the second end 103b of the opening of first little algae collection device 100 and the opening of second little algae collection device 200 relatively is provided with (as shown in Figure 4); And every layer of collecting board 203 of every layer of collecting board 103 of first little algae collection device 100 and second little algae collection device 200 on above-below direction, stagger spaced reciprocally (as shown in Figure 1); Preferably, the distance that staggers each other can equal between the neighbouring two-layer collecting board of each little algae collection device spacing 50%.
As shown in Figure 4, in a preferred embodiment of the invention, protruding bight 103a, the 203a at the first end place of every layer of collecting board 103,203 are formed by the edge 103f, the 203f that raise up.
In a preferred embodiment of the invention, first bar 101 and second bar 102 are open circles mast or filled circles mast.In order to save material, preferred open circles mast.
In illustrated compression, every layer of collecting board 103,203 be shaped as rectangle.But the present invention is not limited to this, and the shape of every layer of collecting board 103,203 can also be square, circular or oval.The shape of every layer of collecting board 103,203 depends primarily on the shape of both culturing microalgae bioreactor 10.
In a preferred embodiment of the invention, every layer of collecting board 103 processed by materials such as Vestolen PP 7052, pvdf or SE.
Fig. 5 a-5b shows a kind of main process of little algae collection method, and it is mainly used in the good little algae of settling property (for example, Haematocoocus Pluvialls, microalgae cell volume >=20 μ m etc.) and gathers.
Collection method for the good little algae of settling property mainly comprises the steps:
S10:, little algae collection device 100,200 is placed in the both culturing microalgae bioreactor 10, and both culturing microalgae liquid is driven in the both culturing microalgae bioreactor 10 referring to Fig. 1;
S20: referring to Fig. 5 a; Be pulled upwardly second bar 102,202; Make every layer of collecting board 103,203 with respect to inclined first angle of inclination; And make every layer of collecting board 103,203 keep static first scheduled time of first angle of inclination, thereby make little algae be deposited on protruding bight 103a, the 203a at the first end place of every layer of collecting board 103,203;
S30: referring to Fig. 5 a, treat little algae deposition after, open the bleed valve 20 of both culturing microalgae bioreactor 10 bottoms, discharge little algae clear liquor;
S40: referring to Fig. 5 b; Put down second bar 102,202 and be pulled upwardly first bar 101,201; Make every layer of collecting board 103,203 with respect to inclined second angle of inclination, thereby sedimentary little algae is flowed into the both culturing microalgae bioreactor 10 along the illustrated direction of arrow from the second end 103b, the 203b of the opening of every layer of collecting board 103,203;
S50: referring to Fig. 5 b, open the bleed valve 20 of both culturing microalgae bioreactor 10 bottoms once more, discharge the little algae in the both culturing microalgae bioreactor 10, thereby accomplish the collection of little algae.
In a preferred embodiment of the invention, the edges at two ends of little algae collection device 100,200 and the spacing of both culturing microalgae bioreactor 10 are no more than 3cm, and still, the present invention is not limited to this.
In a preferred embodiment of the invention, first angle of inclination in 0 °～90 ° scope, preferred 15 °～30 °.
In a preferred embodiment of the invention, second angle of inclination in 0 °～90 ° scope, preferred 60 °～75 °.
The little preferably algae of settling property generally needs sedimentation in about 3 hours complete at common settling bowl, uses this device, and just sedimentation is complete but shorten to 1.5～2 hours through collecting board angle variation pot life, improves little algae collection effciency, easy handling.
Fig. 6 a-6c shows the main process of another kind of little algae collection method, and it is mainly used in the bad little algae of self settling property and gathers, and needs to add flocculation agent and gathers.
Gather for the bad little algae of self settling property, mainly comprise the steps:
S10:, little algae collection device 100,200 is placed in the both culturing microalgae bioreactor 10, and both culturing microalgae liquid is driven in the both culturing microalgae bioreactor 10 referring to Fig. 1;
S12: referring to Fig. 6 a; Be pulled upwardly first bar 101,201 of little algae collection device 100,200; Make every layer of collecting board 103,203 with respect to inclined the 3rd angle of inclination; In both culturing microalgae bioreactor 10, add flocculation agent then and feed gas (for example air) to the bottom of both culturing microalgae bioreactor 10, gas can flow along in layer making progress shown in the arrow among Fig. 6 a, thereby makes flocculation agent and both culturing microalgae liquid uniform mixing;
S20: referring to Fig. 6 b; Put down first bar 101,201 and be pulled upwardly second bar 102,202; Make every layer of collecting board 103,203 with respect to inclined first angle of inclination; And make every layer of collecting board 103,203 keep static first scheduled time of first angle of inclination, thereby make little algae be deposited on protruding bight 103a, the 203a at the first end place of every layer of collecting board 103,203;
S30: referring to Fig. 6 b, treat little algae deposition after, open the bleed valve 20 of both culturing microalgae bioreactor 10 bottoms, discharge little algae clear liquor;
S40: referring to Fig. 6 c; Put down second bar 102,202 and be pulled upwardly first bar 101,201; Make every layer of collecting board 103,203 with respect to inclined second angle of inclination, thereby sedimentary little algae is flowed into the both culturing microalgae bioreactor 10 along the illustrated direction of arrow from the second end 103b, the 203b of the opening of every layer of collecting board 103,203;
S50: referring to Fig. 6 c, open the bleed valve 20 of both culturing microalgae bioreactor 10 bottoms once more, discharge the little algae in the both culturing microalgae bioreactor 10, thereby accomplish the collection of little algae.
In the present invention, little algae (chlorella, microalgae cell volume≤10 μ m etc.) that settling property is bad does not have effect basically in common settling bowl sedimentation; Use this device, can make flocculation agent, effective, the mixing uniformly of little algae frustule, do not need by mechanical stirring; Can effectively collect the bad little algae of settling property; Be easy to large-scale application, easy to operate, energy-saving and cost-reducing.And in conventional art, what traditional flocculating settling was gathered little algae use is settling bowl, treats that little algae liquid and flocculation agent join need additionaling power stirring carrying out mixing in the settling bowl, and 1000 cubes of little algae liquid of every processing need consume 180 degree electric energy approximately.After leaving standstill, clear liquor is discharged, and the bottom gets the algae liquid concentrator.
In a preferred embodiment of the invention, the 3rd angle of inclination in 0 °～90 ° scope, preferred 60 °～75 °.
In a preferred embodiment of the invention, flocculation agent is like inorganic cation salts such as aluminium salt, molysite, organic type of flocculation agent of polymers such as chitosan or microbial flocculant.
Though describe the present invention in conjunction with accompanying drawing, disclosed embodiment is intended to the preferred embodiment for the present invention is carried out exemplary illustration in the accompanying drawing, and can not be interpreted as a kind of restriction of the present invention.
Though some embodiment of this present general inventive concept are shown and explain; Those skilled in the art will appreciate that; Under the situation of principle that does not deviate from this present general inventive concept and spirit, can make a change these embodiment, scope of the present invention limits with claim and their equivalent.
Claims (20)
1. a little algae collection device (100) that is placed in the both culturing microalgae bioreactor (10) is included in spaced two-layer at least collecting board (103) on the above-below direction, it is characterized in that:
First end of said two-layer at least collecting board (103) is supported on respectively on first bar (101), and second end is supported on respectively on second bar (102);
The first end place of said every layer of collecting board (103) is formed with and prevents the effusive protruding bight of sedimentary little algae (103a), second end of said every layer of collecting board (103) the effusive open end of for the benefit of little algae (103b);
When the little algae of deposition, be pulled upwardly second bar (101) and make said every layer of collecting board (103) become first angle of inclination, thereby make little algae be deposited on the protruding bight (103a) at the first end place of every layer of collecting board (103) with respect to inclined; And
When collecting little algae; Be pulled upwardly first bar (101) and make said every layer of collecting board (103) become second angle of inclination, thereby sedimentary little algae is flowed into the both culturing microalgae bioreactor (10) from second end (103b) of the opening of every layer of collecting board (103) with respect to inclined.
2. little algae collection device according to claim 1 (100) is characterized in that,
Near first end of every layer of collecting board (103), be formed with first hole; Said first bar (101) passes said first hole; And below said first hole, insert said first bar (101), thereby first end of said every layer of collecting board (103) is supported on said first bar (101) with pin (104); And
Near second end of every layer of collecting board (103), be formed with second hole; Said second bar (102) passes said second hole; And below said second hole, insert said second bar (102), thereby second end of said every layer of collecting board (103) is supported on said second bar (102) with pin (104).
3. little algae collection device according to claim 1 (100) is characterized in that, the protruding bight at the first end place of every layer of said collecting board (103) is formed by the edge that raises up (103f).
4. little algae collection device according to claim 1 (100) is characterized in that, said first bar (101) and second bar (102) are open circles mast or filled circles mast.
5. little algae collection device according to claim 1 (100) is characterized in that, said every layer of collecting board (103) be shaped as rectangle, square, circle or oval.
6. little algae collection device according to claim 1 (100) is characterized in that, said every layer of collecting board (103) processed by materials such as Vestolen PP 7052, pvdf or SE.
7. little algae collection device according to claim 1 (100) is characterized in that, said first angle of inclination is 15 °～30 °.
8. little algae collection device according to claim 1 (100) is characterized in that, said second angle of inclination is 60 °～75 °.
9. a little algae collection assembly that is placed in the both culturing microalgae bioreactor (10) comprises at least two according to each described little algae collection device (100,200) among the claim 1-8.
10. little algae collection assembly according to claim 9 is characterized in that, comprises first little algae collection device (100) and second little algae collection device (200);
Second end (103b) of the opening of said first little algae collection device (100) is relative with second end (203b) of the opening of said second little algae collection device (200); And
Every layer of collecting board (103) of said first little algae collection device (100) staggers on above-below direction with every layer of collecting board (203) of said second little algae collection device (200) spaced reciprocally.
11. a little algae collection method comprises the steps:
S10: each described little algae collection device (100) among the claim 1-8 is placed in the both culturing microalgae bioreactor (10);
S20: be pulled upwardly second bar (102); Make every layer of collecting board (103) with respect to inclined first angle of inclination; And make every layer of collecting board (103) keep static first scheduled time of first angle of inclination, thereby make little algae be deposited on the protruding bight (103a) at the first end place of every layer of collecting board (103);
S30: after treating little algae deposition, discharge the little algae clear liquor in the said both culturing microalgae bioreactor (10);
S40: put down second bar (102) and be pulled upwardly first bar (101); Make every layer of collecting board (103) with respect to inclined second angle of inclination, thereby sedimentary little algae is flowed into the both culturing microalgae bioreactor (10) from second end (103b) of the opening of every layer of collecting board (103);
S50: discharge the little algae in the said both culturing microalgae bioreactor (10), thereby accomplish the collection of little algae.
12. little algae collection method according to claim 11 is characterized in that, between said step S10 and step S20, also comprises step:
S12: be pulled upwardly first bar; Make every layer of collecting board (103) with respect to inclined the 3rd angle of inclination; In both culturing microalgae bioreactor (10), add flocculation agent then and feed gas, thereby make flocculation agent and both culturing microalgae liquid uniform mixing to the bottom of both culturing microalgae bioreactor (10).
13. little algae collection method according to claim 12 is characterized in that, said the 3rd angle of inclination is 60 °～75 °.
14. little algae collection method according to claim 12 is characterized in that, said flocculation agent is inorganic cation saline flocculating agent, organic type of flocculation agent of polymer or microbial flocculant.
15. little algae collection method according to claim 14 is characterized in that, said flocculation agent is aluminium salt, molysite, gathers aluminium, gathers iron or chitosan etc.
16. a little algae collection method comprises the steps:
S10: each described little algae collection assembly among the claim 9-10 is placed in the both culturing microalgae bioreactor (10);
S20: second bar (102,202) that is pulled upwardly said at least two little algae collection devices (100,200); Make every layer of collecting board (103,203) with respect to inclined first angle of inclination; And make every layer of collecting board (103,203) keep static first scheduled time of first angle of inclination, thereby make little algae be deposited on the protruding bight (103a, 203a) at the first end place of every layer of collecting board (103,203);
S30: after treating little algae deposition, discharge the little algae clear liquor in the said both culturing microalgae bioreactor (10);
S40: put down second bar (102,202) and be pulled upwardly first bar (101,201) of said at least two little algae collection devices (100,200); Make every layer of collecting board (103,203) with respect to inclined second angle of inclination, thereby sedimentary little algae is flowed into the both culturing microalgae bioreactor (10) from second end (103b, 203b) of the opening of every layer of collecting board (103,203);
S50: discharge the little algae in the said both culturing microalgae bioreactor (10), thereby accomplish the collection of little algae.
17. little algae collection method according to claim 16 is characterized in that, between said step S10 and step S20, also comprises step:
S12: first bar (101,201) that is pulled upwardly said at least two little algae collection devices (100,200); Make every layer of collecting board (103,203) with respect to inclined the 3rd angle of inclination; In both culturing microalgae bioreactor (10), add flocculation agent then and feed gas, thereby make flocculation agent and both culturing microalgae liquid uniform mixing to the bottom of both culturing microalgae bioreactor (10).
18. little algae collection method according to claim 15 is characterized in that, said the 3rd angle of inclination is 60 °～75 °.
19. little algae collection method according to claim 17 is characterized in that, said flocculation agent is inorganic cation saline flocculating agent, organic type of flocculation agent of polymer or microbial flocculant.
20. little algae collection method according to claim 19 is characterized in that, said flocculation agent is aluminium salt, molysite, gathers aluminium, gathers iron or chitosan etc.
Priority Applications (1)
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105483011A (en) * | 2014-09-18 | 2016-04-13 | 中国石油化工股份有限公司 | Microalgae harvesting method |
| CN105483012A (en) * | 2014-09-18 | 2016-04-13 | 中国石油化工股份有限公司 | Method for harvesting microalgae |
| CN105670905A (en) * | 2016-01-13 | 2016-06-15 | 新奥科技发展有限公司 | Microalgae collection device and microalgae collection method |
| CN106467888A (en) * | 2015-08-14 | 2017-03-01 | 国家开发投资公司 | Grated plate type bioreactor |
| CN106906119A (en) * | 2015-12-23 | 2017-06-30 | 国家开发投资公司 | The harvesting apparatus of bioreactor, harvesting method and photo-biological culture systems |
| CN110835151A (en) * | 2019-11-25 | 2020-02-25 | 厦门理工学院 | Automatic algae removal device and algae removal method thereof |
| WO2022170371A1 (en) * | 2021-02-03 | 2022-08-11 | Peter Douglas | Apparatus for organism rearing or liquid remediation |
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| CN201411458Y (en) * | 2009-07-02 | 2010-02-24 | 新奥科技发展有限公司 | Device used for collecting microalgae |
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| CN105483011A (en) * | 2014-09-18 | 2016-04-13 | 中国石油化工股份有限公司 | Microalgae harvesting method |
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| CN106467888A (en) * | 2015-08-14 | 2017-03-01 | 国家开发投资公司 | Grated plate type bioreactor |
| CN106906119A (en) * | 2015-12-23 | 2017-06-30 | 国家开发投资公司 | The harvesting apparatus of bioreactor, harvesting method and photo-biological culture systems |
| CN105670905A (en) * | 2016-01-13 | 2016-06-15 | 新奥科技发展有限公司 | Microalgae collection device and microalgae collection method |
| CN110835151A (en) * | 2019-11-25 | 2020-02-25 | 厦门理工学院 | Automatic algae removal device and algae removal method thereof |
| WO2022170371A1 (en) * | 2021-02-03 | 2022-08-11 | Peter Douglas | Apparatus for organism rearing or liquid remediation |
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