CN103113932B - Method and system for producing biodiesel by cultivating microalgae by using urban sewage - Google Patents
Method and system for producing biodiesel by cultivating microalgae by using urban sewage Download PDFInfo
- Publication number
- CN103113932B CN103113932B CN201310040334.7A CN201310040334A CN103113932B CN 103113932 B CN103113932 B CN 103113932B CN 201310040334 A CN201310040334 A CN 201310040334A CN 103113932 B CN103113932 B CN 103113932B
- Authority
- CN
- China
- Prior art keywords
- algae
- micro
- domestic sewage
- city domestic
- growth
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/10—Biofuels, e.g. bio-diesel
Landscapes
- Micro-Organisms Or Cultivation Processes Thereof (AREA)
- Physical Water Treatments (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The invention relates to a method and a system for producing biodiesel by cultivating microalgae by using urban sewage. According to the method and the system, a sewage treatment system is converted from a treatment technique to a production technique; high contents of organics and nutrients such as nitrogen and phosphorus in the urban sewage are conducive to mass propagation of the microalgae, so that the sewage is converted from pollutants to raw materials for the growth of the microalgae; CO2 circulation and O2 circulation are tightly combined through the establishment of an algal-bacterial symbiotic system, so that the growth of the microalgae is no longer dependent on an external carbon source, and meanwhile, the production cost is low due to the reduction of aeration systems in an aeration tank; the illumination in the aeration tank is abundant due to the use of a photosynthesis component, which is conducive to the photosynthesis of the microalgae; and the subsequent sludge quantity is small due to the use of efficiently-degraded strains.
Description
Technical field
The present invention relates to a kind of method and system of producing biofuel, particularly relate to a kind of method and system utilizing city domestic sewage to cultivate micro-algae production biofuel.
Background technology
Energy dilemma is related to the development of human future, and therefore the exploitation of new forms of energy causes people and more and more payes attention to.Another large crisis parallel with energy dilemma is water resources and water quality crisis.Shortage of fresh water is one of Main Bottleneck of restriction China future development.Reuse of wastewater is the important channel addressed this problem, and body eutrophication controls to be the matter of utmost importance that reclaimed water reuse needs to solve when landscape water body.Therefore, in the secondary and tertiary treatment of sewage work, need the efficient nitrogen phosphorus removed in sewage.Utilize city domestic sewage to cultivate high fat content micro-algae production biofuel, have Energy production power high, floor space is relatively little and in air, only do not discharge CO
2etc. advantage, become study hotspot and the forward position of current international new forms of energy and environmental area.At present, domestic also have some research institutions in the correlative study being engaged in the microalgae biomass energy, but take mainly secondary effluent from sewage treatment plant as the micro-algae of culture medium culturing, absorbs the CO in extraneous power plant flue gas
2as the carbon source of micro algae growth.These technique needs to adopt does not stop to pass into O
2and unresolved sewage work aerator energy consumption is large, the problem that surplus sludge volume is large, there are some limitation simultaneously, as secondary effluent nitrogen phosphorus etc., nutrition content is low is unfavorable for that micro-algae raised growth is bred, sunlight can not be transmitted to bottom micro algae growth reaction unit and be unfavorable for micro-algae photosynthesis, and the carbon source that power plant flue gas can provide is limited.Cause utilizing city domestic sewage to cultivate high fat content micro-algae production biofuel to be difficult to realize industrialization.
Summary of the invention
The technical problem that the present invention solves is: build a kind of method and system utilizing city domestic sewage to cultivate micro-algae production biofuel, do not need aerator oxygen supply, save energy; Meanwhile, large scale culturing is carried out to micro-algae, finally makes Biodiesel.
Technical scheme of the present invention is: provide a kind of method utilizing city domestic sewage to cultivate micro-algae production biofuel, comprise the steps:
Degradation of organic waste water also cultivates micro-algae: micro-algae, by photosynthesis, utilizes the CO in sewage
2and comprise the nutritive substance synthesis frond own cells material of nitrogen phosphorus and discharge O
2, the strains added utilizes O in water
2organic pollutant is degraded, for micro algae growth provides nutritive substance, to maintain the growth and breeding of micro-algae;
Collect micro-algae: adopt filter membrane to collect micro-algae, realize algae water and be separated;
Generate biofuel: adopt ultrasonic disruption microwave assisting method to extract grease to micro-algae of collecting, add methyl alcohol in the basic conditions or grease is converted into fatty acid methyl ester as catalyzer by ethanol, add in reaction system again ether and salts solution mixing after layering, isolate ether mutually after carry out again vacuum distilling obtain biofuel.
Further technical scheme of the present invention is: at degradation of organic waste water and before cultivating micro-algae step, also comprise and remove assorted algae, in preliminary sedimentation tank, judge whether to need to remove the assorted algae in city domestic sewage according to raw water quality and original algae kind kind, if desired then remove the assorted algae in city domestic sewage;
Further technical scheme of the present invention is: cultivate in micro-algae step at degradation of organic waste water, adopts one or more methods in ultrasonic wave or magnetic field to stimulate micro algae growth.
Further technical scheme of the present invention is: when using ultrasonic wave to remove assorted algae, ultrasonic frequency is 10 kHz to 100kHz, and ultrasonic power is 100-200W, and the ul-trasonic irradiation time is 1 minute to 10 minutes; When using magnetic stimulation micro algae growth, magnetic field magnetic induction is 5-50mT, and in magnetic field, the residence time is 1 little of 10 hours, and algae flow quantity is 100-200mL/ minute.
Further technical scheme of the present invention is: described micro-algae is through the chlorella of mutagenesis domestication, scenedemine, Closterium, one or more in dunaliella kind.
Further technical scheme of the present invention is: described bacterial strain is that Plesiomonas, Rhodopseudomonas, Aeromonas, xanthomonas etc. can one or more in the organic bacteria culture of efficient degradation;
Further technical scheme of the present invention is: employing filter sizes is that the film of 0.5 micron to 2.5 microns collects micro-algae.
Further technical scheme of the present invention is: in generation biofuel step, algae-residue is by the mode production biomass energy of anaerobic digestion, and the resistates after anaerobic digestion is as fertilizer.
Technical scheme of the present invention is: build a kind of system utilizing city domestic sewage to cultivate micro-algae production biofuel, comprise the generation unit of the preliminary sedimentation tank of receiving city domestic sewage, the bacterial strain of degradation of organic waste water, the helotism unit cultivating micro-algae, collection assembly, generation biofuel, adopt the strains for degrading city domestic sewage with efficient degradation ability in described helotism unit, the micro-algae in city domestic sewage utilizes the CO in sewage by photosynthesis
2and comprise the nutritive substance synthesis frond own cells material of nitrogen phosphorus and discharge O
2, the strains added then utilizes O in water
2organic pollutant is degraded, for micro algae growth provides nutritive substance, to maintain the growth and breeding of micro-algae; Described helotism unit comprises photosynthesis assembly, and described photosynthesis assembly provides illumination for micro algae growth; Described collection assembly collects micro-algae, described generation unit adopts ultrasonic disruption microwave assisting method to extract grease to higher fatty acid micro-algae of collecting, add methyl alcohol in the basic conditions or grease is converted into fatty acid methyl ester as catalyzer by ethanol, add in reaction system again ether and salts solution mixing after layering, isolate ether mutually after carry out again vacuum distilling obtain biofuel.
Further technical scheme of the present invention is: also comprise assorted algae removal unit, and in preliminary sedimentation tank, the assorted algae in assorted algae removal unit removing city domestic sewage, described assorted algae removal unit is the first ultrasonic module.
Further technical scheme of the present invention is: described helotism unit also comprises the stimulation assembly stimulating micro algae growth, and described stimulation assembly is the second ultrasonic module or magnetic field component.
Further technical scheme of the present invention is: described photosynthesis assembly comprise in sunlight optical fibre inducting device and optical fiber, light reflecting device and source of artificial light LED one or more.
Technique effect of the present invention is: the present invention builds a kind of method and system utilizing city domestic sewage to cultivate micro-algae production biofuel, realize Sewage treatment systems from treatment process to the conversion of production technique, nutrition content is high is conducive to micro-algae amount reproduction for organism in city domestic sewage, nitrogen phosphorus etc., achieves sewage by the conversion of pollutent to micro algae growth raw material; The foundation of helotism system is by CO
2circulation and O
2circulation is closely linked, and makes micro algae growth no longer rely on the external world to provide carbon source, and in aeration tank, the minimizing of aerating system makes production cost relatively low simultaneously; Sunlight imports assembly and makes illumination in aeration tank fully be conducive to the photosynthesis of micro-algae; The use of efficient degrading bacterial strain makes follow-up sludge quantity few.
Accompanying drawing explanation
Fig. 1 is schema of the present invention.
Fig. 2 is structural representation of the present invention.
Embodiment
Below in conjunction with specific embodiment, technical solution of the present invention is further illustrated.
As shown in Figure 1, the specific embodiment of the present invention is: provide a kind of method utilizing city domestic sewage to cultivate micro-algae production biofuel, comprise the steps:
Step 100: degradation of organic waste water also cultivates micro-algae, that is: adopt the strains for degrading organic waste water with efficient degradation ability, micro-algae utilizes the CO in sewage by photosynthesis
2with the nutritive substance such as nitrogen phosphorus, synthesis frond own cells material also discharges O
2, strains then utilizes O in water
2organic pollutant is degraded, for micro algae growth provides the necessary nutritive substance such as carbon source, nitrogenous source, inorganic salt, to maintain the growth and breeding of micro-algae.
Specific implementation process is as follows: to city domestic sewage have efficient degradation ability bacterial strain comprises bacterial strain T2, bacterial strain T5 and T8, T2 and T5 are Plesiomonas, T8 is Rhodopseudomonas, is 95.8% to the average removal rate of COD.Described helotism system is micro-algae utilizes in sewage CO by photosynthesis
2with the nutritive substance such as nitrogen phosphorus, synthesis own cells material also discharges O
2.Strains then utilizes O in water
2organic pollutant is degraded, for micro algae growth provides the necessary nutritive substance such as carbon source, nitrogenous source, inorganic salt, to maintain the growth and breeding of micro-algae, so moves in circles, realize the biological purification of sewage.In specific embodiment, described micro-algae is through the chlorella of mutagenesis domestication, scenedemine, Closterium, one or more in Dunaliella salina, and described bacterial strain is that Plesiomonas, Rhodopseudomonas, Aeromonas, xanthomonas etc. can one or more in the organic bacteria culture of efficient degradation.
Step 200: collect micro-algae, that is: adopt filter membrane to collect micro-algae, realizes algae water and be separated.
Specific implementation process is as follows: employing filter sizes is that the embrane method of 0.5-2.5 μm collects micro-algae, and working pressure is 0.01 to 0.1MPa, and feed rate is 100 to 800Lh
-1, temperature is 20-40 DEG C, and pH value is 5-8.Stabilized flux under this condition reaches 50 to 80 Lh
-1m
-2.Through the filtration of 1-5h, the algae density in algae liquid can reach 1 × 10
8individual mL
-1, more than 99.9% is reached to the rejection of micro-algae, realizes the object that algae water is separated.
Step 300: generate biofuel, that is: ultrasonic disruption microwave assisting method is adopted to extract grease to higher fatty acid micro-algae of collecting, add methyl alcohol in the basic conditions or grease is converted into fatty acid methyl ester as catalyzer by ethanol, add in reaction system again ether and salts solution mixing after layering, isolate ether mutually after carry out again vacuum distilling obtain biofuel.
Specific implementation process is as follows: adopt ultrasonic disruption microwave assisting method to extract grease, temperature 80-150 DEG C, time 5-20min, solvent chloroform methyl alcohol proportioning 1:2, liquid ratio 20:1, extraction time 1-5 time.Add methyl alcohol in the basic conditions or grease is converted into fatty acid methyl ester as catalyzer by ethanol, then in reaction system, add layering after ether and salts solution mixing, isolate ether mutually after carry out vacuum distilling again and can obtain biofuel.Algae-residue produces the biomass energy such as methane, hydrogen by the mode of anaerobic digestion, and the resistates after anaerobic digestion contains a small amount of nitrogen and phosphorus, can as organic fertilizer for crop growth.
The preferred embodiment of the present invention is: also comprise and remove assorted algae, that is: in preliminary sedimentation tank, judge whether to need to remove the assorted algae in city domestic sewage according to raw water quality and original algae kind kind, if desired remove the assorted algae in city domestic sewage, then first remove assorted algae.
Specific implementation process for: adopt the Sasser that the ultrasonic wave of certain frequency produces, the outer wall acting on micro-algae makes it to break until dead.City domestic sewage utilizes ultrasonic wave to be killed by assorted algae original in sewage when entering preliminary sedimentation tank, prevent assorted algae from affecting the growth of micro-algae in subsequent technique.
The preferred embodiment of the present invention is: cultivate in micro-algae step at degradation of organic waste water, adopts ultrasonic wave or magnetic stimulation micro algae growth.Specific embodiment is: when using ultrasonic wave to remove assorted algae, ultrasonic frequency is 10 kHz to 100kHz, and ultrasonic power is 100-200W, and the ul-trasonic irradiation time is 1 minute to 10 minutes; When using magnetic field to remove assorted algae, magnetic field magnetic induction is 5-50mT, and in magnetic field, the residence time is 1 little of 10 hours, and algae flow quantity is 100-200mL/ minute.In implementation process, intensity of illumination is kept to be that 5-10kLx is to algae liquid circular treatment.
As shown in Figure 2, technical scheme of the present invention is: build a kind of system utilizing city domestic sewage to cultivate micro-algae production biofuel, comprise the preliminary sedimentation tank 1 receiving city domestic sewage, assorted algae removal unit 2, the bacterial strain 3 of degradation of organic waste water, cultivate the helotism unit 4 of micro-algae, collection assembly 5, generate the generation unit 6 of biofuel, in preliminary sedimentation tank 1, assorted algae removal unit 2 removes the assorted algae in city domestic sewage, for the city domestic sewage after impurity elimination algae, adopt bacterial strain 3 degradation of organic waste water with efficient degradation ability, micro-algae utilizes the CO in sewage by photosynthesis
2with the nutritive substance such as nitrogen phosphorus, synthesis frond own cells material also discharges O
2, strains then utilizes O in water
2organic pollutant is degraded, for micro algae growth provides the necessary nutritive substance such as carbon source, nitrogenous source, inorganic salt, to maintain the growth and breeding of micro-algae, described helotism unit 4 comprises photosynthesis assembly 7, and described photosynthesis assembly 7 irradiates city domestic sewage by photosynthesis, described collection assembly 5 collects micro-algae, described generation unit 6 adopts ultrasonic disruption microwave assisting method to extract grease to higher fatty acid micro-algae of collecting, add methyl alcohol in the basic conditions or grease is converted into fatty acid methyl ester as catalyzer by ethanol, add in reaction system again ether and salts solution mixing after layering, isolate ether mutually after carry out again vacuum distilling obtain biofuel.
Specific implementation process is as follows: in preliminary sedimentation tank 1, and assorted algae removal unit 2 removes the assorted algae in city domestic sewage, in specific embodiment, adopts the Sasser that the ultrasonic wave of certain frequency produces, and the outer wall acting on micro-algae makes it to break until dead.City domestic sewage utilizes ultrasonic wave to be killed by assorted algae original in sewage when entering preliminary sedimentation tank, prevent assorted algae from affecting the growth of micro-algae in subsequent technique.To city domestic sewage have efficient degradation ability bacterial strain comprises bacterial strain T2, bacterial strain T5 and T8, T2 and T5 are Plesiomonas, T8 is Rhodopseudomonas, is 95.8% to the average removal rate of COD.Described helotism system is micro-algae utilizes in sewage CO by photosynthesis
2with the nutritive substance such as nitrogen phosphorus, synthesis own cells material also discharges O
2.Strains then utilizes O in water
2organic pollutant is degraded, for micro algae growth provides the necessary nutritive substance such as carbon source, nitrogenous source, inorganic salt, to maintain the growth and breeding of micro-algae, so moves in circles, realize the biological purification of sewage.In specific embodiment, described micro-algae is through one or more in the algae kind such as chlorella, scenedemine, Closterium, Dunaliella salina of mutagenesis domestication; Described bacterial strain is that Plesiomonas, Rhodopseudomonas, Aeromonas, xanthomonas etc. can one or more in the organic bacteria culture of efficient degradation.In specific embodiment, described promotion photosynthesis assembly 7 comprises sunlight optical fibre inducting device and optical fiber, light reflecting device and source of artificial light LED, for micro algae growth provides illumination.Described collection assembly 5 adopts filter sizes to be that the embrane method of 0.5-2.5 μm collects micro-algae, and working pressure is 0.01 to 0.1MPa, and feed rate is 100 to 800Lh
-1, temperature is 20-40 DEG C, and pH value is 5-8.Stabilized flux under this condition reaches 50 to 80 Lh
-1m
-2.Through the filtration of 1-5h, the algae density in algae liquid can reach 1 × 10
8individual mL
-1, more than 99.9% is reached to the rejection of micro-algae, realizes the object that algae water is separated.Described generation unit adopts dry method oil fractionation, temperature 80-150 DEG C, time 5-20min, solvent chloroform methyl alcohol proportioning 1:2, liquid ratio 20:1, extraction time 1-5 time.Add methyl alcohol in the basic conditions or grease is converted into fatty acid methyl ester as catalyzer by ethanol, then in reaction system, add layering after ether and salts solution mixing, isolate ether mutually after carry out vacuum distilling again and can obtain biofuel.Algae-residue produces the biomass energy such as methane, hydrogen by the mode of anaerobic digestion, and the resistates after anaerobic digestion contains a small amount of nitrogen and phosphorus, can as organic fertilizer for crop growth.
The preferred embodiment of the present invention is: described assorted algae removal unit 2 is the first ultrasonic module.The Sasser that first ultrasonic module adopts the ultrasonic wave of certain frequency to produce, the outer wall acting on micro-algae makes it to break until dead.City domestic sewage utilizes ultrasonic wave to be killed by assorted algae original in sewage when entering preliminary sedimentation tank, prevent assorted algae from affecting the growth of micro-algae in subsequent technique.
The preferred embodiment of the present invention is: also comprise the stimulation assembly 8 stimulating micro algae growth, described stimulation assembly is ultrasonic module or magnetic field component.Cultivate in micro-algae step at degradation of organic waste water, adopt ultrasonic wave or magnetic stimulation micro algae growth.Specific embodiment is: when using ultrasonic wave to remove assorted algae, ultrasonic frequency is 10 kHz to 100kHz, and ultrasonic power is 100-200W, and the ul-trasonic irradiation time is 1 minute to 10 minutes; When using magnetic field to remove assorted algae, magnetic field magnetic induction is 5-50mT, and in magnetic field, the residence time is 1 little of 10 hours, and algae flow quantity is 100-200mL/ minute.In implementation process, intensity of illumination is kept to be that 5-10kLx is to algae liquid circular treatment.
Technique effect of the present invention is: the present invention builds a kind of method and system utilizing city domestic sewage to cultivate micro-algae production biofuel, realize Sewage treatment systems from treatment process to the conversion of production technique, nutrition content is high is conducive to micro-algae amount reproduction for organism in city domestic sewage, nitrogen phosphorus etc., achieves sewage by the conversion of pollutent to micro algae growth raw material; The foundation of helotism system is by CO
2circulation and O
2circulation is closely linked, and makes micro algae growth no longer rely on the external world to provide carbon source, and in aeration tank, the minimizing of aerating system makes production cost relatively low simultaneously; Promote that photosynthesis assembly makes illumination in aeration tank fully be conducive to the photosynthesis of micro-algae; The use of efficient degrading bacterial strain makes follow-up sludge quantity few.
Above content is in conjunction with concrete preferred implementation further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, some simple deduction or replace can also be made, all should be considered as belonging to protection scope of the present invention.
Claims (10)
1. utilize city domestic sewage to cultivate a method for micro-algae production biofuel, comprise the steps:
Degradation of organic waste water also cultivates micro-algae: micro-algae, by photosynthesis, utilizes the CO in sewage
2and comprise the nutritive substance synthesis frond own cells material of nitrogen phosphorus and discharge O
2, the strains added utilizes O in water
2organic pollutant is degraded, for micro algae growth provides nutritive substance, to maintain the growth and breeding of micro-algae, adopts one or more methods in ultrasonic wave or magnetic field to stimulate micro algae growth;
Collect micro-algae: adopt filter membrane to collect micro-algae, realize algae water and be separated;
Generate biofuel: adopt ultrasonic disruption microwave assisting method to extract grease to micro-algae of collecting, add methyl alcohol in the basic conditions or grease is converted into fatty acid methyl ester or fatty-acid ethyl ester as catalyzer by ethanol, add in reaction system again ether and salts solution mixing after layering, isolate ether mutually after carry out again vacuum distilling obtain biofuel;
In generation biofuel step, algae-residue is by the mode production biomass energy of anaerobic digestion, and the resistates after anaerobic digestion is as fertilizer.
2. utilize city domestic sewage to cultivate the method for micro-algae production biofuel according to claim 1, it is characterized in that, at degradation of organic waste water and before cultivating micro-algae step, also comprise and remove assorted algae, in preliminary sedimentation tank, judge whether to need to remove the assorted algae in city domestic sewage according to raw water quality and original algae kind kind, if desired then remove the assorted algae in city domestic sewage.
3. utilize city domestic sewage to cultivate the method for micro-algae production biofuel according to claim 1, it is characterized in that, when adopting ultrasonic stimulation micro algae growth, ultrasonic frequency is 10 kHz to 100kHz, ultrasonic power is 100-200W, and the ul-trasonic irradiation time is 1 minute to 10 minutes; When using magnetic stimulation micro algae growth, magnetic field magnetic induction is 5-50mT, and in magnetic field, the residence time is 1 little of 10 hours, and algae flow quantity is 100-200mL/ minute.
4. utilize city domestic sewage to cultivate the method for micro-algae production biofuel according to claim 1, it is characterized in that, described micro-algae is through the chlorella of mutagenesis domestication, scenedemine, Closterium, one or more in dunaliella kind.
5. utilize city domestic sewage to cultivate the method for micro-algae production biofuel according to claim 1, it is characterized in that, described bacterial strain is Plesiomonas, Rhodopseudomonas, Aeromonas, xanthomonas can one or more in the organic bacteria culture of efficient degradation.
6. utilize city domestic sewage to cultivate the method for micro-algae production biofuel according to claim 1, it is characterized in that, employing filter sizes is that the film of 0.5 micron to 2.5 microns collects micro-algae.
7. the system utilizing city domestic sewage to cultivate micro-algae production biofuel, it is characterized in that, comprise the generation unit of the preliminary sedimentation tank of receiving city domestic sewage, the bacterial strain of degradation of organic waste water, the helotism unit cultivating micro-algae, collection assembly, generation biofuel, adopt the strains for degrading city domestic sewage with efficient degradation ability in described helotism unit, the micro-algae in city domestic sewage utilizes the CO in sewage by photosynthesis
2and comprise the nutritive substance synthesis frond own cells material of nitrogen phosphorus and discharge O
2, the strains added then utilizes O in water
2organic pollutant is degraded, for micro algae growth provides nutritive substance, to maintain the growth and breeding of micro-algae; Described helotism unit comprises photosynthesis assembly, and described photosynthesis assembly provides illumination for micro algae growth; Described collection assembly collects micro-algae, described generation unit adopts ultrasonic disruption microwave assisting method to extract grease to higher fatty acid micro-algae of collecting, add methyl alcohol in the basic conditions or grease is converted into fatty acid methyl ester or fatty-acid ethyl ester as catalyzer by ethanol, add in reaction system again ether and salts solution mixing after layering, isolate ether mutually after carry out again vacuum distilling obtain biofuel.
8. a kind of system utilizing city domestic sewage to cultivate micro-algae production biofuel according to claim 7, it is characterized in that, also comprise assorted algae removal unit, in preliminary sedimentation tank, assorted algae in assorted algae removal unit removing city domestic sewage, described assorted algae removal unit is the first ultrasonic module.
9. a kind of system utilizing city domestic sewage to cultivate micro-algae production biofuel according to claim 7, it is characterized in that, described helotism unit also comprises the stimulation assembly stimulating micro algae growth, and described stimulation assembly is the second ultrasonic module or magnetic field component.
10. a kind of system utilizing city domestic sewage to cultivate micro-algae production biofuel according to claim 7, it is characterized in that, described photosynthesis assembly comprise in sunlight optical fibre inducting device and optical fiber, light reflecting device and source of artificial light LED one or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310040334.7A CN103113932B (en) | 2013-02-01 | 2013-02-01 | Method and system for producing biodiesel by cultivating microalgae by using urban sewage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310040334.7A CN103113932B (en) | 2013-02-01 | 2013-02-01 | Method and system for producing biodiesel by cultivating microalgae by using urban sewage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103113932A CN103113932A (en) | 2013-05-22 |
| CN103113932B true CN103113932B (en) | 2015-05-20 |
Family
ID=48412351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310040334.7A Active CN103113932B (en) | 2013-02-01 | 2013-02-01 | Method and system for producing biodiesel by cultivating microalgae by using urban sewage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103113932B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103396895B (en) * | 2013-08-09 | 2014-12-10 | 上海海洋大学 | Method for preparing biodiesel from microalgae through ultrasonic-assisted direct ester exchange |
| TWI503075B (en) * | 2013-09-24 | 2015-10-11 | Univ Tajen | A microalgae culture system |
| CN103663715A (en) * | 2013-12-25 | 2014-03-26 | 嘉兴学院 | Biotreatment method for efficiently purifying biogas slurry with microalgae |
| CN103952314B (en) * | 2013-12-31 | 2016-03-23 | 上海交通大学 | One strain fresh water scenedemine Desmodesmus communes GS05 and application thereof |
| CN105296376B (en) * | 2014-07-09 | 2019-03-15 | 中国科学院过程工程研究所 | A kind of fungal component system and its application improving scenedesmus obliquus biomass and oil quality |
| CN104857844B (en) * | 2015-05-26 | 2017-10-13 | 杭州慈源科技有限公司 | A kind of carbon dioxide harmless discharge processing unit |
| CN109913278B (en) * | 2019-03-28 | 2021-05-11 | 哈尔滨工业大学（深圳） | Method for producing biodiesel by mixed culture of chlorella and scenedesmus by using urban domestic sewage and supernatant of sludge concentration tank |
| CN110257251A (en) * | 2019-07-11 | 2019-09-20 | 哈尔滨工业大学（深圳） | A method of oxygen performance is produced using algae in magnetic field United microwave enhancing municipal sewage |
| CN111548971A (en) * | 2020-06-02 | 2020-08-18 | 江苏海洋大学 | Preparation method of economic microalgae high-efficiency culture medium based on laver processing wastewater |
| CN112573670A (en) * | 2020-12-11 | 2021-03-30 | 复旦大学 | Method for promoting algae-bacteria symbiotic system to treat pollutants in water by using static magnetic field |
| CN114292680A (en) * | 2021-11-18 | 2022-04-08 | 霍山丰乐生物能源科技有限公司 | Method for preparing biomass particles by using agricultural and forestry wastes |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19838011A1 (en) * | 1998-08-21 | 1999-05-20 | Christoph Prof Dr Rer Syldatk | Microbial production of fatty acid methyl esters from whey useful as diesel fuel |
| CN101914430A (en) * | 2010-07-12 | 2010-12-15 | 张建洲 | Device and method for cultivating microalgae |
-
2013
- 2013-02-01 CN CN201310040334.7A patent/CN103113932B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19838011A1 (en) * | 1998-08-21 | 1999-05-20 | Christoph Prof Dr Rer Syldatk | Microbial production of fatty acid methyl esters from whey useful as diesel fuel |
| CN101914430A (en) * | 2010-07-12 | 2010-12-15 | 张建洲 | Device and method for cultivating microalgae |
Non-Patent Citations (1)
| Title |
|---|
| 利用污水资源生产微藻生物柴油的关键技术及潜力分析;胡洪营等;《生态环境学报》;20100331;第19卷(第3期);第739-744页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103113932A (en) | 2013-05-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103113932B (en) | Method and system for producing biodiesel by cultivating microalgae by using urban sewage | |
| Gao et al. | Concentrated microalgae cultivation in treated sewage by membrane photobioreactor operated in batch flow mode | |
| Gao et al. | Lipid accumulation properties of Chlorella vulgaris and Scenedesmus obliquus in membrane photobioreactor (MPBR) fed with secondary effluent from municipal wastewater treatment plant | |
| CN103451091B (en) | Device for purifying livestock and poultry breeding wastewater by microalgae and method thereof | |
| CN101525576B (en) | Method for producing microalgae with domestic sewage and industrial sewage | |
| CN102427142B (en) | Chlorella microbial fuel cell reactor | |
| CN101285075B (en) | Coupling method for biogas fermentation and autotrophic freshwater microalgae culture | |
| CN109913278B (en) | Method for producing biodiesel by mixed culture of chlorella and scenedesmus by using urban domestic sewage and supernatant of sludge concentration tank | |
| CN205398604U (en) | Recycle thermal power plant flue gas waste heat and carbon dioxide's device | |
| CN105174476A (en) | Activated sludge and microalgae coupled granular system for waste water treatment and establishment and operation method thereof | |
| CN102815839A (en) | Method and device for low-carbon emission energy regeneration by coupling waste gas and waste water | |
| CN103789195A (en) | Membrane microalgae photobioreactor for realizing in-situ solid-liquid separation and culture method thereof | |
| CN103074231B (en) | Method for producing microalgae by utilizing industrial waste water and waste gas of biobutanol, and application of method | |
| CN110407404A (en) | A kind of production method and system converting nutrients in agricultural effluent to crude protein raw material | |
| CN107083322A (en) | A kind of multilayer micro algae growth equipment for breeding | |
| CN103981220A (en) | Organic waste treatment method in hydrogen alkane fermentation coupling microalgae breeding | |
| Solmaz et al. | Effect of sludge retention time on biomass production and nutrient removal at an algal membrane photobioreactor | |
| CN103864270B (en) | Device and method for treating organic waste water by combining microorganism electrolytic tank and lemna minor cultivation | |
| CN102746991B (en) | Method for carrying out heterotrophic culture on chlorella with acid-producing wastewater | |
| Ghaffar et al. | A review on the sustainable procurement of microalgal biomass from wastewaters for the production of biofuels | |
| CN101586074B (en) | Algae cultivation system with sewage | |
| CN113105991B (en) | Micro-nano bubble culture and recovery integrated microalgae biofilm reactor and microalgae culture and recovery method thereof | |
| CN103087920B (en) | Mixotrophic scenedesmus and application thereof in sewage resource treatment | |
| CN203474790U (en) | Production device for carrying out purifying treatment on livestock and poultry breeding wastewater by utilizing microalgae | |
| CN105624026A (en) | Low-carbon zero-emission circulating hydrogen preparing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |