CN103966079A - Microalgae integration device and method - Google Patents
Microalgae integration device and method Download PDFInfo
- Publication number
- CN103966079A CN103966079A CN201310668419.XA CN201310668419A CN103966079A CN 103966079 A CN103966079 A CN 103966079A CN 201310668419 A CN201310668419 A CN 201310668419A CN 103966079 A CN103966079 A CN 103966079A
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- filter membrane
- algae
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- main drive
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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
- C12M47/00—Means for after-treatment of the produced biomass or of the fermentation or metabolic products, e.g. storage of biomass
- C12M47/02—Separating microorganisms from the culture medium; Concentration of biomass
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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
- C12M47/00—Means for after-treatment of the produced biomass or of the fermentation or metabolic products, e.g. storage of biomass
- C12M47/14—Drying
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N1/00—Microorganisms, e.g. protozoa; Compositions thereof; Processes of propagating, maintaining or preserving microorganisms or compositions thereof; Processes of preparing or isolating a composition containing a microorganism; Culture media therefor
- C12N1/02—Separating microorganisms from their culture media
Abstract
The invention discloses a microalgae integration device and method. A culture solution naturally flows out of a discharge outlet of a culture tank; one-stop rapid collection and drying of microalgae is realized through steps that microalgae is preliminarily dehydrated by gravity of a microporous membrane conveying belt and dehydrated through a capillary effect of a super-absorbent composite material, biomass on a microporous membrane is rapidly dried by a heat pump, and the like; and water removed by gravity and water removed by squeezing the absorbent material can be recycled to a culture system for use. According to the device and the method, a flocculant is not required to be added, steps of centrifugation, filtration and the like are not required, the cost is low, the energy consumption is low, and water can be recycled.
Description
Technical field
The present invention relates to bioengineering field, relate in particular to micro-algae cultivation, results and dry device and method.
Background technology
Micro-algae is the ideal source of the bioenergy produced, it has following advantage compared with other terrestrial organism matter resources: photosynthetic efficiency is high, growth cycle is short, fat content is high, micro-algae unit surface oil offtake is 30 times of oil crops, and it does not account for arable land, added value of product is high, at fresh water, even polluted waters growth of seawater, can utilize the organism in water body, in manufacturing bioenergy, solves the environment difficult problems such as body eutrophication etc.Nowadays the research of the micro-algae of the energy has become new trend and the new focus of world's biomass energy development in science and technology.
It is another bottleneck problem urgently to be resolved hurrily that energy micro-algae large-scale is produced that micro-algae is gathered.Small (1-30 μ m), the concentration low (being generally 0.5-3.0 g/L) in nutrient solution of micro-phycobiont.Moreover, frustule surface multi-band negative electricity, individual in nutrient solution dispersion suspension more equably, form stable dispersion system, be difficult to sedimentation.These all increase difficulty to microalgae harvesting, cause results cost very high.Conventionally adopt physical/chemical/biological process first to the micro algae culturing liquid pre-treatment of flocculating, then air supporting, centrifugal, membrane sepn or microfiltration method are collected it.But the cost that micro algae culturing liquid concentration is low and the thin characteristic of particle is gathered micro-algae accounts for it and cultivates the cost 20%-30% of (comprise and cultivate and gather).Even micro-algae of gathering by above two kinds of steps, its water content is still up to more than 80%.According to Life cycle analysis (Life cycle analysis, LCA), produce energy product if produce micro-algae after micro-high-moisture like this algae is dry, its process energy consumption is high, at the bottom of working (machining) efficiency, integral energy " unable to make ends meet ", has significantly reduced the economic benefit of micro-algae energy.
For a difficult problem for current energy microalgae harvesting and drying process existence, the present invention innovatively integrated micro-algae cultivate, collect, dehydration and technique and the device such as dry, designing micro-algae of domestic originality gathers and is dried outfit, this integrating device is simple in structure, processing ease, floor space is little, can effectively reduce microalgae harvesting energy consumption for drying and cost and drop into, and is easy to put into production use.For the economy that improves energy micro-algae large-scale production process provides possibility.
Summary of the invention
The object of this invention is to provide a kind of micro-algae cultivation, results and dry integrating device and method.The present invention is directed to current microalgae biomass water content high, results difficulty is large, and micro-algae drying process energy consumption is high, and at the bottom of working (machining) efficiency, the present situation of integral energy " unable to make ends meet ", provides a kind of new low power consuming results and dry integrated device and method.This equipment is collected micro-algae and method, without through add flocculation agent, centrifugal/filter, spraying drying and other steps.Device of the present invention is for comprising filter membrane system, barring gear, conveyer belt system, drying installation; Filter membrane system is that epimere ramp type filter membrane upholder system forms, and it and terrain slope are 30-90 angles, and angle setting is relevant to biological species and concentration; Hypomere horizontal filter membrane is made up of one group of tool pulley barring gear travelling belt, and pulley gear left side wheels is driven shaft, and right-hand wheel is main drive shaft, driven by motor, in transmission, rotating shaft is fastened and connected by cingulum and travelling belt, and super water suction soft material is by couple axle and main drive shaft extrusion dehydration.The millipore filtration material pore size of filter membrane system can be selected according to different sorts algae class, between 1-1000 μ m.Filter membrane material can be selected polyolefins and other satisfactory novel material of preparing of nylon, cellulose esters, polysulfones, introducing comonomer.Conveyer belt system is the filter membrane travelling belt that lower surface closely sticks software water-absorbing material, the micro-algae water molecules that is rich in water is inhaled in super water suction soft material band, material can select absorbent cotton, the sponge etc. of natural or simple processing and through synthetic super water-absorbent polymeric material as polyurethane-polyacrylic sodium etc., travelling belt velocity of rotation is adjustable, rotating speed because of different algal species water content variant.Couple axle extruding water-absorbing material, realizes the dehydration to water-absorbing material.After the dehydration of horizontal filter membrane system, micro-algal biomass is through scraper, and scraper is made up of hard rubber material, and algae mud or high density algae liquid scrape dry to heat pump chamber.Drying installation is the heat pump drying device template closed-in construction that is designed to struggle against, and both sides are blowhole, are cellular or lattice-like aperture, aperture 0.5 mm-10mm, and air outlet temperature can reach 80 DEG C of above air source heat pumps.The water producing in whole dehydration can be through pump, blowback cultivation pool, recycle.Device and method principle of the present invention:
(1) according to gravitional force principle, first micro-algae is through culture apparatus discharge outlet discharge algae liquid, micro-algae dewaters on tilting filter membrane material, membrane retention frustule, utilize moisture action of gravity to slough most free water in fishery products, if fishery products are collected as microalgae cell diameter is less than the more difficult sedimentation of 5 μ m, control discharge outlet valve, suitably reduce discharge rate.
(2) further stick software water-absorbing material travelling belt via horizontal filter membrane lower surface, utilize capillary action, water molecules is inhaled in super water suction soft material band.Super water suction compound soft material main drive shaft and driven shaft extruding remove the water that gravity can not remove, and travelling belt rotates slowly, and energy consumption is low;
(3) after the dehydration of horizontal filter membrane system, micro-algal biomass drops down onto heat pump chamber kiln through scraper, and dried algae bio matter is fed forward and collects micro-algae that water content is lower with travelling belt;
(4) the nutrient containing water of sloughing in results process can be back to recycle in cultivation pool.In cultured continuously, after microalgae harvesting, substratum falls in meeting culture systems again; Batch formula cultivate in after fishery products results culture medium nutrient substance still have residually, directly discharge not only can cause environmental pollution, and causes nutraceutical waste.Nutritive water recycle can improve the economy of process.
Cell characteristics for different fishery products in the present invention is selected composite absorbent material and microporous membrane coupling unit and dry rotating shaft etc., determine the best applied sample amount of water suction for the characteristic of different biomass, dry rotating shaft temperature and overall operation time, treatment capacity, power consumption etc., obtain that one-stop micro-algae is gathered and dry New Equipments and method.
Brief description of the drawings
Fig. 1 is a kind of micro-algae integrating device schematic diagram of the present invention.
Wherein: 1-filter membrane system, 3-travelling belt, 4-scraper, the super water suction of 5-soft material, 7-main drive shaft, 8-heat pump, 9-heat pump chamber, 10-culture apparatus, 11-discharge outlet, 12-pump, 13-couple axle, 14-driven shaft.
Embodiment
The invention is further illustrated by the following examples.
Embodiment 1
With the grid algae that harvests drying
scenedesmus quadricauda(being purchased from CHINESE FRESHWATER algae kind storehouse, Wuhan) is example, and this algae is under the jurisdiction of Chlorophyta (Chlorophyta), and Chlorococcale (Chlorococcales) is really assembled suborder (Eucoenobianae).This grid algae can grow in sewage, to there being certain effect in water body purification, is one of dominant species in sewage lagoon.
First on inclined-plane filter membrane 1, (10 μ m) utilize gravity to slough most free water in micro-algae to concentration 1.0-3.0 g/L algae liquid, kapillary zone continues to flow through, super water suction soft material 5 further dewaters, utilize capillary action, water molecules is inhaled in super water suction soft material 5 bands.The conveyer belt system 3 of integrated sealing is attached with width 50cm by aperture approximately 2 μ m filter membrane travelling belts, the super water-absorbing sponge material 5 of bibulous super water suction soft material of thick 10cm, super water suction compound soft material band removes through main drive shaft 7 and driven shaft 13 squeezing devices the water that gravity can not remove, travelling belt rotates slowly, and energy consumption is low.The water of deviating from is back to recycle in micro algae culturing device through pump 12.Super water suction compound soft material 5 travelling belts, through scraper 4, scrape algae mud to heat pump 9 drying installations, and heat pump place is dried 1 h, and dried micro-algae is fed forward and collects water content lower than micro-algae dry powder of 15% with travelling belt.
Embodiment 2
With
spirulinasp. the spirulina algae kind that harvests drying is example.This algae of open cultivation, it is containing rich in protein, can reach 1.0-2.5 g/L, use inclined-plane gauze 1 to filter that (aperture 1000 μ m), utilize gravity to slough most free water in spirulina, the further dehydration of kapillary zone (super water suction soft material 5) that continues to flow through, sponge material (width 50cm, thick 10cm) by.The water that super water suction soft material 5 is deviate from by main drive shaft 7 and driven shaft 13 extruding is back to recycle in micro algae culturing device.Spirulina after dehydration pushes to dry approximately 2.0 h in heat pump place through scraper 4, and dried spirulina is fed forward and collects water content lower than 10% dry algae with travelling belt.
Above preferred embodiment of the present invention is had been described in detail, but described content is only preferred embodiment of the present invention, can not be considered to for limiting practical range of the present invention.All equalization variation and any improvement modifications etc. of doing according to the present patent application scope, within all should still belonging to patent covering scope of the present invention.
Claims (7)
1. a micro-algae integrating device, is characterized in that, comprises filter membrane system (1), heat pump chamber (9) and couple axle (13); Filter membrane system (1) is to be made up of leading portion ramp type filter membrane upholder system and back segment horizontal filter membrane system, described leading portion ramp type filter membrane upholder system for laying filter membrane on planar bracket, leading portion ramp type filter membrane upholder system and terrain slope are 30-90 angles, and angle setting is relevant to biological species and concentration; Back segment horizontal filter membrane system is made up of motor, driven shaft (14), main drive shaft (7) and filter membrane, and hind axle is driven shaft (14), and front axle is main drive shaft (7), and described main drive shaft (7) is driven by motor; Described driven shaft (14) and main drive shaft (7) are provided with travelling belt (3), described travelling belt (3) is teeth belt type, travelling belt (3) and driven shaft (14), main drive shaft (7) coordinate for teeth belt type, described travelling belt (3) is horizontally disposed with, described travelling belt (3) is provided with super water suction soft material (5), and described super water suction soft material (5) outside is provided with one deck filter membrane; Described driven shaft (14) is near the lower edge of leading portion ramp type filter membrane upholder system; Filter membrane that described main drive shaft (7) is located outside is provided with scraper (4), and scraper (4) is axially close to filter membrane along main drive shaft (7); Described scraper (4) below is provided with heat pump chamber (9), and described heat pump chamber (9) is funnel-form plate and frame structure, and the axial two ends that heat pump chamber (9) are positioned at main drive shaft (7) are blowhole, the blowhole that the hot blast of heat pump (8) output leads to two ends; Under described main drive shaft (7), be provided with couple axle (13), described couple axle (13) presses the filter membrane of being located at main drive shaft (7) surface.
2. the micro-algae integrating device of one according to claim 1, is characterized in that, the material of described filter membrane is nylon, cellulose esters, polysulfones or the polyolefins of introducing comonomer.
3. the micro-algae integrating device of one according to claim 1, is characterized in that, the pore size of described filter membrane can be selected according to different sorts algae class, between 1-1000 μ m.
4. the micro-algae integrating device of one according to claim 1, is characterized in that, the material of described super water suction soft material (5) is absorbent cotton, sponge or polyurethane-polyacrylic sodium.
5. the micro-algae integrating device of one according to claim 1, is characterized in that, described back segment horizontal filter membrane system is of a size of 10 × 1m-50 × 2 m.
6. the micro-algae integrating device of one according to claim 1, is characterized in that, the aperture 0.5 mm-10 mm of the blowhole of described heat pump (8), and blowhole air outlet temperature is more than 80 DEG C.
7. a micro-algae integrated approach, is characterized in that, concrete steps are:
A) micro-algae is discharged to algae liquid through culture apparatus discharge outlet, micro-algae dewaters on the filter membrane material of leading portion ramp type filter membrane upholder system, membrane retention frustule, utilize moisture action of gravity to slough most free water in fishery products, if fishery products are collected as microalgae cell diameter is less than the more difficult sedimentation of 5 μ m, control discharge outlet valve, suitably reduce discharge rate;
B) micro-algae is by the filter membrane gravity dehydration of back segment horizontal filter membrane system, the super water suction soft material (5) that utilizes the filter membrane lower surface of back segment horizontal filter membrane system to stick, super water suction soft material (5) utilizes capillary action again, and water molecules is inhaled in super water suction soft material;
C) micro-algae arrives one end of main drive shaft (7) through travelling belt (3), drops down onto heat pump chamber (9) dry through scraper, and dried algae bio matter falls and is collected from heat pump chamber (9);
D) super water suction soft material (5) turns to couple axle (13) with main drive shaft (7), removes through couple axle (13) extruding the water that gravity can not remove;
E) steps A), D) in the water sloughed be back to recycle in cultivation pool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310668419.XA CN103966079A (en) | 2013-12-11 | 2013-12-11 | Microalgae integration device and method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310668419.XA CN103966079A (en) | 2013-12-11 | 2013-12-11 | Microalgae integration device and method |
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| CN103966079A true CN103966079A (en) | 2014-08-06 |
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| CN201310668419.XA Pending CN103966079A (en) | 2013-12-11 | 2013-12-11 | Microalgae integration device and method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109971641A (en) * | 2019-04-23 | 2019-07-05 | 胡小军 | Deposit system is dried in the harvesting of sealed microalgae green |
| CN110791420A (en) * | 2019-12-06 | 2020-02-14 | 中国科学院青岛生物能源与过程研究所 | Microalgae harvesting device with adjustable inclined plane |
| CN111162248A (en) * | 2020-03-30 | 2020-05-15 | 天能电池集团股份有限公司 | Polar plate surface drying device and polar plate preparation method |
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| CN203878147U (en) * | 2013-12-11 | 2014-10-15 | 大丰市佳丰油脂有限责任公司 | Microalgae integration device |
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| US3796317A (en) * | 1972-11-10 | 1974-03-12 | Westinghouse Electric Corp | System for treating dilute slurries |
| CN201264914Y (en) * | 2008-07-23 | 2009-07-01 | 中国科学院水生生物研究所 | Apparatus for harvesting water bloom blue algae |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109971641A (en) * | 2019-04-23 | 2019-07-05 | 胡小军 | Deposit system is dried in the harvesting of sealed microalgae green |
| CN110791420A (en) * | 2019-12-06 | 2020-02-14 | 中国科学院青岛生物能源与过程研究所 | Microalgae harvesting device with adjustable inclined plane |
| CN110791420B (en) * | 2019-12-06 | 2023-11-24 | 青岛中科蓝智生物科技发展有限公司 | Microalgae harvesting device with adjustable inclined plane |
| CN111162248A (en) * | 2020-03-30 | 2020-05-15 | 天能电池集团股份有限公司 | Polar plate surface drying device and polar plate preparation method |
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Address after: Xikang Road Ecological Economic Development Zone, Dafeng City, Jiangsu province Zhenjiang City, No. 26, 224100 Applicant after: Jiangsu Jia Feng grain & Oil Industry Co., Ltd. Applicant after: Jiangsu University Address before: Xikang Road Ecological Economic Development Zone, Dafeng City, Jiangsu province Zhenjiang City, No. 26, 224100 Applicant before: Dafeng Jia Feng Grease Co., Ltd. Applicant before: Jiangsu University |
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Application publication date: 20140806 |