CN107487860B - A kind of fish-farming with sewage microalgae device and preparation method thereof - Google Patents
A kind of fish-farming with sewage microalgae device and preparation method thereof Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
- C02F3/322—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae use of algae
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- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
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- C12M29/00—Means for introduction, extraction or recirculation of materials, e.g. pumps
- C12M29/16—Hollow fibers
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- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Abstract
The present invention provides a kind of fish-farming with sewage microalgae device and preparation method thereof, using modification of chitosan, modified montmorillonite used it be prepared into the hollow adsorption column that adsorbed film assembles the metal ion in sewage is adsorbed, sewage is made to penetrate adsorption column by pumping suction function, sewage stops in adsorption column, it is contacted with immobilized microalgae, microalgae carries out growth and breeding using the organic nutrient substance in sewage.Carry out sewage disposal using this method, can effectively except substances such as metal ion, carbon, nitrogen, the phosphorus in decontaminated water, while can large-scale culturing micro-algae, reach sewage disposal and microdisk electrode dual purpose.Treated, and sewage can be used for irrigating, cultivating, cleaning；It turns out the microalgae come and can be used for aquaculture, feed addition, plant oil extract etc..
Description
Technical field
The invention belongs to technical field of sewage, more particularly to a kind of sewage culture microalgae device and preparation method thereof.
Background technology
With China's economic development, livestock and poultry cultivation sewage, municipal wastewater and increased become of trade effluent mainly pollute
Source, these discharges of sewage are big, and COD, carbon, the content of nitrogen and phosphorous are high, simultaneously containing various heavy metal substances.Traditional aerobic activity is dirty
Mud treatment technology input cost is high, and operation energy consumption is big, Treatment of Sludge trouble, and dirt cannot be fully utilized in the microorganism in activated sludge
Substance in water, in the nutriments such as most of carbon, nitrogen, phosphorus also residual water.
Microalgae is that have the protophyte of photosynthetic ability, and micro-algae propagation survival ability is extremely strong, can be from waste water
Various inorganic elements and organic matter are absorbed, is both domestic and external grind using sewage as cheap culture medium large-scale cultivation treated sewage
Study carefully hot spot.A kind of continuous systems using microalgae processing organic sewage of application for a patent for invention CN201310192863.9, including
11 parts such as organic wastewater pre-treatment pond, aerator, organic suspended matter separator, laminar microalgae photosynthetic reactor.It should
System structure is simple, energy consumption is small, realizes organic sewage continuous purification and the cultivation lotus root connection synergy of economic microalgae low-coat scaleization
Target.Number of patent application CN201110361451.4, trade effluent are applied to the pretreatment technology flow of both culturing microalgae, utilize nothing
Sludge components in machine flocculant alum and organic flocculant chitosan combination technology treated sewage add in sodium hydroxide tune
The pH value of section treated sewage, after filtering sedimentation, molecular sieve goes the heavy metal ion in water removal, utilizes the work of this method processing
Industry sewage retains organic impurities, eliminates inorganic impurity and sludge components, is suitble to both culturing microalgae.Number of patent application
A kind of raceway pond microalgae cultivating systems for continuing aerating collecting frustule using microbubble of CN201510418103.4, including runway
Pond, the device for set turbulent flow carbon compensator in raceway pond, continuing air supporting using microbubble and collecting raceway pond frustule, baffle device,
Double paddle wheels and the groove structure divided by the invention, can speed up water circulation in raceway pond, improve between liquid level and air
Gas exchanges frequency, can real-time, effectively realize the initial concentration to frustule, improve centrifugal efficiency, reduce centrifugation energy
Consumption reduces harvest cost；The carbon dioxide spread escape can be prevented, improves utilization rate of carbon dioxide, is more rapidly adjusted
Algae solution pH；The exchange between algae solution levels can be effectively facilitated, can prevent the frustule on surface layer from can also be increased by light injury
Effective luminous energy total amount that the frustule of unit of water body is added to receive；This raceway pond can realize the continuous culture of microalgae, and cultivate
The minute quantity waste water generated in the process can be led to after sterilization pool is handled with nutritive salt preparing pool by pipeline and recycle profit again
With.
The research hotspot that processing is current many researchers is carried out to sewage using microalgae, but there is extensive for microalgae
The problems such as cultivating, being enriched with detaching difficulty.
Invention content
For in the prior art, scale is unable to using microalgae treated sewage, micro algae growth is influenced by high-concentration sewage,
Large-scale microdisk electrode is difficult, and microalgae collects difficult, the undesirable present situation of wastewater treatment efficiency, a kind of utilization of present invention offer
The device of adsorption column cultivating microalgae.
Using the present invention treated sewage, BOD ＜ 110mg/L, COD ＜ 380mg/L, suspended matter ＜ 20mg/L, ammonia nitrogen
＜ 40mg/L, total phosphorus ＜ 4mg/L.Treated, and sewage can be used for irrigating, cultivating, cleaning；The microalgae come is turned out to can be used for
Aquaculture, feed addition, plant oil extract etc..
A kind of fish-farming with sewage microalgae device, by modification of chitosan, the modified montmorillonite used outer membrane A for being prepared into adsorbed film and in
The hollow space D and the middle layer segment C adsorption columns of filling microalgae that tunic B assembles inhale the metal ion in sewage
It is attached, sewage is made to penetrate adsorption column by pumping suction function, sewage is stopped in adsorption column, contacted with immobilized microalgae, microalgae profit
Growth and breeding is carried out with the organic nutrient substance in sewage.
The device of the invention is through the following steps that be prepared：
A. 40 ~ 80 parts of Kynoar powder is taken, is dissolved in 25 ~ 50 parts of dibutyl phthalates, adds in 50 ~ 100 parts
Modification of chitosan powder, 50 ~ 100 parts of modified montmorillonite used powder, 2 ~ 10 parts of Geniposides, under nitrogen protection in 210 ~ 223 DEG C of oil
After 4 ~ 6h of stirring is mixed into uniform solution in bath, standing and defoaming obtains polymer；Polymer is passed through into the weightlessness of 5 ‰ measuring accuracies
Scale feeder feeds double screw extruder, under the mixing kneading effect of 250 ~ 300rpm and 2 ~ 5MPa, is sufficiently mixed material
Uniformly into the casting solution of stable homogeneous, casting solution enters spray by spinning pump with the speed accurate measurement of 90 ~ 100g/min
Head, inner cavity are entered using the nitrogen of 36 ~ 50ml/min flow velocitys as hollow supporting body after the air section evaporation of certain altitude
Phase separation and curing occur in the water-bath of 298K, is collected thick hollow-fibre membrane by collecting wheel with the speed of 25m/min；
B. thick hollow-fibre membrane c being prepared is immersed in 95% industrial alcohol 24 hours, extracts two fourth of phthalic acid
Ester diluent, during which needs to change ethyl alcohol 2 times, it is ensured that diluent extraction is clean, and the hollow-fibre membrane that extraction finishes is floated with clear water
Wash clean obtains hollow-fibre membrane；
C. hollow-fibre membrane is taken, is assembled into duplicature column, there are the space of 3 ~ 7cm wide, outermost tunic bottoms among duplicature
Portion is provided with dump valve, obtains adsorption column；
D. multiple adsorption columns are vertically fixed with brandreth, innermost layer hollow space parallel connection is connect with suction pump, is positioned over anti-
Ying Chizhong fills microalgae, you can carries out sewage disposal；
E. after running 4 ~ 7 days；Hollow-fibre membrane is cleaned 2 hours with 2 ~ 5wt%HCl, then with 2000 ~ 3000mg/L
NaClO+1000 ~ 2000mg/L NaOH are cleaned 2 hours, and every component cleaning flux is 15 ~ 30L/h, and 23 ~ 25 DEG C of temperature elutes
Liquid recycles after collecting for metal ion.
As a further improvement on the present invention, microalgae loading is 50 ~ 70% in the adsorption column, adsorption column hollow space
It is not communicated with two membranes intermediate space part.
As a further improvement on the present invention, the Kynoar molecular weight be 30KDa ~ 40Kda, Kynoar
A concentration of 30 ~ 35wt%.
As a further improvement on the present invention, the dibutyl phthalate, modification of chitosan, modified montmorillonite used powder
Ratio of weight and number is 1:2:2~2:2:5.
As a further improvement on the present invention, the preparation method of the modification of chitosan is as follows：
（1）50 parts of chitosans are weighed, is added in the ethanol solution of 60ml 95% and impregnates, 60 DEG C of swelling 2h of constant temperature；（2）It will
150 parts of vanillic aldehydes are dissolved in the ethyl alcohol of 400ml 95%, and the soak for pouring into chitosan obtains mixed liquor；（3）Mixed liquor is placed
In microwave quick reaction device, 70 DEG C of heating temperature is set, reacts 10min, microwave power 300w, stirring；（4）It has reacted
Into cooled and filtered, ethyl alcohol is washed, and washing is dried under vacuum to constant weight, obtains modification of chitosan powder.
The chitosan of vanillic aldehyde graft modification has better filming performance, while can remove Cu very well2+、Zn2+, to having
The adsorption rate of machine object COD can reach 25mg/g；
As a further improvement on the present invention, the modified montmorillonite used preparation method is as follows：
20 parts of natural smectite is weighed, 5% sodium hydroxide of natural smectite quality is weighed, by solid-liquid mass ratio 1:10
200ml distilled water is added in, it is 5.6 to adjust pH, and 1h is stirred to react for 60 DEG C in water bath with thermostatic control, the freeze-day with constant temperature at 80 DEG C, fine grinding
Son is sieved with 100 mesh sieve, it is modified montmorillonite used to obtain sodium.
The raw material of specific proportioning carries out the property montmorillonite that sodium changes, to Cu2+、Pb2+、Zn2+、Cd2+Adsorption rate it is reachable respectively
99.2%th, 99.8%, 99.5% and 99.3%.
As a further improvement on the present invention, the Kynoar ethylene molecule amount is 30KDa ~ 40Kda, gathers inclined fluorine
Ethylene concentration is 30 ~ 35wt%.
Polymer molecular weight size influences Kynoar system viscosity and membrane aperture size, and then influences pure water and pass through
Rate.When polymer molecular weight increases, system viscosity increases, and the growth of stingy drop and nucleus is limited, when polymer concentrated phase cures
Corresponding drop and spherulite size are smaller, and corresponding membrane aperture is smaller.
As a further improvement on the present invention, dibutyl phthalate, modification of chitosan, modified montmorillonite used powder weight
Score ratio is 1:2:2~2:2:5.
Molecular weight is 30KDa ~ 40Kda, the Kynoar ethylene of a concentration of 30 ~ 35wt%, with two fourth of phthalic acid
Ester, modification of chitosan, modified montmorillonite used powder ratio of weight and number are 1:2:2~2:2:5, the performance of the film prepared is：Pure water
580 ~ 800Lm of flux-2h-1（298K）, 0.101 ~ 0.115 μm, 15.2 ~ 20.4N of tensile strength of average pore size, porosity 70 ~
80%。
Then the present invention is mixed and made into adsorption column film by being modified to chitosan and montmorillonite with Kynoar,
Using the adsorption column that is assembled into of immobilized microalgae filling duplicature, sewage passes through the suction-operated of adsorption column outer membrane, and 98% or so
Heavy metal ion adsorbed, the sewage after absorption is entered inside adsorption column to be reacted with immobilized microalgae, and microalgae can be sharp
Growth and breeding is carried out with the Organic Carbon And Total Nitrogen phosphorus substance in sewage, further except the carbon nitrogen phosphorus substance in decontaminated water.After microalgae processing
Sewage again pass by adsorption column inner layer film after discharge, be almost free of the polluters such as heavy metal, carbon, nitrogen, phosphorus.
Advantages of the present invention：
1. the present invention by being modified to chitosan and montmorillonite is used as membrane material, can adsorb well heavy metal from
Son can effectively adsorb Pb In Exhausted Water, every, heavy metal ion such as nickel, molybdenum, while montmorillonite also has except malicious function, further net
Change sewage.
2. adsorption column prepared by the present invention is hybrid organic-inorganic film, the advantages of having concentrated polyvinylidene fluoride separation membrane with
And the absorption property of chitosan, montmorillonite, film stable physical property, pure water flux and hydrophily are improved to some extent.
3. the adsorption column of the present invention has good pressure-resistant performance, arbitrary size can be made without supporter, membrane module and shape,
The advantages that loading density is big in membrane module, unit volume membrane area and flux is big.
4. carrying out microdisk electrode using sewage by apparatus of the present invention, sewage can be purified and trained on a large scale
Microalgae is supported, is easily isolated microalgae and sewage, treated, and sewage also can apply to other aspects with next microalgae is turned out, and reach
The effect that environmental protection, substance recycle.
Description of the drawings
Fig. 1 is the schematic diagram of adsorption column of the present invention.Wherein A is outer membrane, and B is inner layer film, and C is the middle level portion for filling microalgae
Point, D is hollow space.
Fig. 2 is the reaction tank structure diagram that one embodiment of the invention is applied in production.Wherein, 1 is before organic wastewater
Processing pond；2 be aerator；3 be organic suspended matter gas floatation separation device；4 be organic wastewater storage pool after pre-treatment；5 be layer
Decline algae photosynthetic reactor；6 be mixing pit；7 be water pump；8 be microalgae flocculation basin；9 be the continuous harvesting apparatus of microalgae；10 be microalgae
It is spray-dried room；11 be air-dissolved CO2Aerator.
Fig. 3 is the enlarged drawing of schematic diagram left-hand component shown in Fig. 2.Wherein I is organic wastewater pre-treatment subsystem；II is light
Close reaction subsystem；III is air-dissolved CO2 aerating subsystems；IV continuously harvests subsystem for microalgae.
Specific embodiment
The following examples can make those skilled in the art that the present invention be more fully understood, but not limit in any way
The present invention.
Embodiment 1
The present embodiment is used for dairy cow farm sewage disposal.
The preparation of adsorption column and installation method are as follows in the present embodiment：
A. 80 parts of the Kynoar powder of 40Kda, 30wt% are taken, is dissolved in 25 parts of dibutyl phthalates, adds in 50
Part modification of chitosan powder, 50 parts of modified montmorillonite used powder, 2 parts of Geniposides stir 4h in 210 DEG C of oil baths under nitrogen protection
After being mixed into uniform solution, standing and defoaming obtains polymer；Polymer is fed by the Weightlessness balance feeder of 5 ‰ measuring accuracies
Double screw extruder under the mixing kneading effect of 250rpm and 2MPa, makes material be sufficiently mixed uniformly into the casting of stable homogeneous
Film liquid, casting solution enter nozzle by spinning pump with the speed accurate measurement of 90g/min, and inner cavity is with 36ml/min flow velocitys
Nitrogen is as hollow supporting body, into generation phase separation in the water-bath of 298K and admittedly after the air section evaporation of certain altitude
Change, collected thick hollow-fibre membrane by collecting wheel with the speed of 25m/min；
B. thick hollow-fibre membrane d being prepared is immersed in 95% industrial alcohol 24 hours, extracts two fourth of phthalic acid
Ester diluent, during which needs to change ethyl alcohol 2 times, it is ensured that diluent extraction is clean, and the hollow-fibre membrane that extraction finishes is floated with clear water
Wash clean obtains hollow-fibre membrane.
C. hollow-fibre membrane is taken, is assembled into duplicature column, there are the space of 7cm wide, outermost tunic bottoms among duplicature
Dump valve is provided with, obtains adsorption column；
D. multiple adsorption columns are vertically fixed with brandreth, innermost layer hollow space parallel connection is connect with suction pump, is positioned over anti-
Ying Chizhong；
After operation 7 days, stopping is filled with ozone, stops sewage pump, stop pumping pump, and immobilized microalgae is passed through adsorption column bottom
Portion's dump valve discharge, is collected；Hollow-fibre membrane is cleaned 2 hours with 2wt%HCl, then with 2000mg/L NaClO+1000mg/L
NaOH is cleaned 2 hours, 23 DEG C of temperature.The conservation rate that the cleaning can improve tensile strength is 80%.
In the present embodiment, immobilized microalgae loading 70% in adsorption column.
Embodiment 2
The present embodiment is used for sanitary sewage disposal.
Adsorption column is prepared as follows with installation method in the present embodiment：
A. 40 parts of 30Kda, 35wt% Kynoar powder is taken, is dissolved in 30 parts of dibutyl phthalates, adds in 30 parts
Modification of chitosan powder, 75 parts of modified montmorillonite used powder, 5 parts of Geniposides stir 5h under nitrogen protection in 215 DEG C of oil baths and mix
After synthesizing uniform solution, standing and defoaming obtains polymer；Polymer is double by the Weightlessness balance feeder feeding of 5 ‰ measuring accuracies
Screw extruder under the mixing kneading effect of 280rpm and 4MPa, makes material be sufficiently mixed uniformly into the casting film of stable homogeneous
Liquid, casting solution enter nozzle by spinning pump with the speed accurate measurement of 100g/min, and inner cavity is with 45ml/min flow velocitys
Nitrogen is as hollow supporting body, into generation phase separation in the water-bath of 298K and admittedly after the air section evaporation of certain altitude
Change, collected thick hollow-fibre membrane by collecting wheel with the speed of 25m/min；
B. thick hollow-fibre membrane d being prepared is immersed in 95% industrial alcohol 24 hours, extracts two fourth of phthalic acid
Ester diluent, during which needs to change ethyl alcohol 2 times, it is ensured that diluent extraction is clean, and the hollow-fibre membrane that extraction finishes is floated with clear water
Wash clean obtains hollow-fibre membrane.
C. hollow-fibre membrane is taken, is assembled into duplicature column, there are the space of 3cm wide, outermost tunic bottoms among duplicature
Dump valve is provided with, obtains adsorption column；
D. multiple adsorption columns are vertically fixed with brandreth, innermost layer hollow space parallel connection is connect with suction pump, is positioned over anti-
Ying Chizhong；
The present embodiment concrete operation step is as follows：
It opens sewage pump and sanitary sewage is injected into reaction tank, when sewage is not to adsorption column 50%, stop pumping；It opens smelly
Oxygengenerating plant, ozone aeration quantity is 15g/h, action time 10min/h, after ozonization 5h, opens suction pump, adjusts
Flow is 1L/min, working time 15min, time of having a rest 40min, and sewage is made to enter adsorption column and is reacted with immobilized microalgae
Afterwards, the sewage after reaction is discharged into water purifying tank；
After operation 4 days, stopping is filled with ozone, stops sewage pump, stop pumping pump, and immobilized microalgae is passed through adsorption column bottom
Portion's dump valve discharge, is collected, hollow-fibre membrane is cleaned 2 hours with 4wt%HCl, then with 2500mg/L NaClO+1500mg/L
NaOH is cleaned 2 hours, and every component cleans flux as 22L/h, 24 DEG C of temperature.The cleaning can improve the holding of tensile strength
Rate is 81.6%.
In the present embodiment, immobilized microalgae loading 50% in adsorption column.
Embodiment 3
The present embodiment is used for municipal sewage treatment.
Adsorption column is prepared as follows with installation method in the present embodiment：
A. 80 parts of 35Kda, 30wt% Kynoar powder is taken, is dissolved in 50 parts of dibutyl phthalates, adds in 100
Part modification of chitosan powder, 100 parts of modified montmorillonite used powder, 10 parts of Geniposides stir in 223 DEG C of oil baths under nitrogen protection
After 6h is mixed into uniform solution, standing and defoaming obtains polymer；Polymer is fed by the Weightlessness balance feeder of 5 ‰ measuring accuracies
Enter double screw extruder, under the mixing kneading effect of 300rpm and 5MPa, material is made to be sufficiently mixed uniformly into stable homogeneous
Casting solution, casting solution enter nozzle by spinning pump with the speed accurate measurement of 100g/min, and inner cavity is flowed with 50ml/min
The nitrogen of speed as hollow supporting body, after the air section evaporation of certain altitude into occur in the water-bath of 298K phase separation with
Curing is collected thick hollow-fibre membrane by collecting wheel with the speed of 25m/min；
B. thick hollow-fibre membrane d being prepared is immersed in 95% industrial alcohol 24 hours, extracts two fourth of phthalic acid
Ester diluent, during which needs to change ethyl alcohol 2 times, it is ensured that diluent extraction is clean, and the hollow-fibre membrane that extraction finishes is floated with clear water
Wash clean obtains hollow-fibre membrane.
C. hollow-fibre membrane is taken, is assembled into duplicature column, there are the space of 5cm wide, outermost tunic bottoms among duplicature
Dump valve is provided with, obtains adsorption column；
D. multiple adsorption columns are vertically fixed with brandreth, innermost layer hollow space parallel connection is connect with suction pump, is positioned over anti-
Ying Chizhong；
The present embodiment concrete operation step is as follows：
It opens sewage pump and sanitary sewage is injected into reaction tank, when sewage is not to adsorption column 60%, stop pumping；It opens smelly
Oxygengenerating plant, ozone aeration quantity is 25g/h, action time 20min/h, after ozonization 5h, opens suction pump, adjusts
Flow is 1.2L/min, working time 20min, time of having a rest 50min, and sewage is made to enter adsorption column and is carried out instead with immobilized microalgae
Sewage after reaction is discharged into water purifying tank by Ying Hou；
After operation 6 days, stopping is filled with ozone, stops sewage pump, stop pumping pump, and immobilized microalgae is passed through adsorption column bottom
Portion's dump valve discharge, is collected；Hollow-fibre membrane is cleaned 2 hours with 5wt%HCl, then with 3000mg/L NaClO+2000mg/L
NaOH is cleaned 2 hours, and every component cleans flux as 30L/h, 25 DEG C of temperature.The cleaning can improve the holding of tensile strength
Rate is 82.9%.In the present embodiment, immobilized microalgae loading 60% in adsorption column.
Embodiment 4
With the fish-farming with sewage microalgae device prepared by the embodiment of the present invention 1 ~ 3 with patent of invention CN201310192863.9's
Microalgae handles the continuous system of organic sewage, and processing Pig raising wastewater is as a comparison.
Fish-farming with sewage microalgae device prepared by the embodiment of the present invention 1 ~ 3 handles Pig raising wastewater mode with described in embodiment 1 ~ 3
Processing mode.
The continuous system processing Pig raising wastewater mode of the microalgae processing organic sewage of patent of invention CN201310192863.9
It is as follows：
1st, the pig raising enterprise of certain pigs in stock 50,000 discharges about 200 tons of biogas slurry, is flowed into after primary settling daily
Biogas slurry pre-treatment pond, the processing pond is in series by 100 cement pit, and the wide 6m in single pond, long 8m, depth 1.5m effectively hold
Product about 60m3, entire pond group total measurement (volume) is 6000m3.Biogas slurry enters the outflow of the last one pond from first pond, stops
Time is about 30 days.Air-dissolved intermittent aerating apparatus of oxygen supply, mating isolation net cage are installed at the upper strata 50cm in every single pond；
Net cage is implanted into helotism biofilm floating ball, and the frame that keeps off the rain that shades is installed on pond, and 20-30% is allowed to scatter light and is penetrated, for bacterium
Good environment factor is created in the symbiosis of algae harmony.It is fixed on helotism biofilm floating ball that there are many aquatic fungi, nitrobacteria, algaes
The symbiosis population mixture of class.Above-mentioned biology is all common biology in biogas slurry pond ecological system, is not specially required.In series connection pond
Least significant end be equipped with per hour treating capacity be 8m3 dissolved air type air-float machine, by the organic suspended matter remained in organic wastewater,
The heavy metal component flocculation separation adsorbed on organic suspended matter removes, and improves the translucency of organic wastewater, is discharged from air floatation machine
The obtained pretreated organic wastewater of mouth is collected into a large-scale organic wastewater storage pool, become be used directly for it is micro-
The marsh liquid culture medium of algae cultivation.
2nd, the photosynthetic reactor of this example is composed in parallel using 225 groups of photosynthetic reactor single rack, the photosynthetic organism of single rack is anti-
It is to use angle bar frame, the cementing multilayer racetrack gravity flow structure formed of tempering flint glass according to bionics principle to answer device,
8 layers of reactor, interfloor distance 40cm；Runway width 70cm, length 2000cm, water storage thickness is in 20cm, natural pond after pretreatment
From the photosynthetic reactor is entered to the outflow photosynthetic reactor, the residence time is kept for 36 hours liquid.By organic wastewater pre-treatment
The biogas slurry of subsystem I processing（It is equivalent to out the 40% of water inventory）, the water outlet with being rich in frustule in photosynthetic response subsystem II
Circulating reflux part（Account for out the 60% of water inventory）.After being mixed in mixing pit, by pipeline and equal after being pressurizeed by water pump
The even top layer for being distributed to all single rack in parallel starts the cycle of gravity drive.Laminar microalgae photosynthesis physiological target is placed in
Under the facilities protection of light transmission greenhouse.Laminar microalgae photosynthesis physiological target starts for the first time to be needed to be inoculated with chlorella pure culture seed,
And pass through increasing biogas slurry ratio step by step and quickly tame.Chlorella used in this example (Chlorella Vulgaris) FACHB-7 strains
It is directly bought from positioned at aquatile research institute of the Chinese Academy of Sciences fresh water algae library of Wuhan Luo Jia Shan East Lake South Road 7.
3rd, using air-dissolved CO2 aerators, exhaust gas is produced in marsh gas power generation in a manner of gas compression（With CO2And H2O
Based on steam）6 meters one high, the bottom of the stainless steel cylindrical container of diameter 40cm is compressed to, herein the light with being pumped into
The cycle water inlet mixed dissolution of reaction subsystem II is closed, and microalgae photosynthetic reactor is finally transported in the form of carbonic acid
Each position is utilized by microalgae.
4th, the continuous harvesting apparatus of microalgae described in this example is by mixing pit 6, microalgae flocculation basin 8, the continuous harvesting apparatus 9 of microalgae
Composition.The water outlet of frustule is partly rich in photosynthetic response subsystem II（It is total to be equivalent to photosynthetic response subsystem II water outlets
The 40% of amount）, microalgae flocculation basin 8 is admitted to, after flocculant process, the continuous harvesting apparatus 9 of microalgae is then sent through, is harvested
High-moisture percentage bead algal gel is transported to spray drying computer room 10 and carries out spray drying treatment.The processing capacity of spray dryer is
1 ton per hour, 160 DEG C of setting material inlet temperature, 75 DEG C of material outlet temperature.The moisture-proof packet of chlorella powder by spray drying
Equipment is used.Continuous 9 qualified discharge of harvesting apparatus of slave microalgae after harvesting microalgae goes out purified water.
It measures at the fish-farming with sewage microalgae device of the preparation of embodiment 1 ~ 3 and the microalgae of patent of invention CN201310192863.9
The continuous system heel row of reason organic sewage discharges water microalgae dry weight and the sewage prepared by embodiment 1 ~ 3 after indices, culture
The film properties of cultivating microalgae device, data such as table 1 ~ 3.
Each content of material during 1 each device of table processing heel row discharges water
2 Pig raising wastewater of table treated microalgae dry weight
The film properties of 3 each device of table
By table 1 ~ 3 as can be seen that being handled with patent of invention using the microalgae of patent CN201310192863.9 of the present invention
The continuous system of organic sewage is compared, and fish-farming with sewage microalgae device prepared by the present invention has better sewage treatment capacity, training
Microalgae concentration higher after supporting.
The above embodiment of the present invention scheme is only the description of the invention and cannot limit the present invention, in the power with the present invention
Any change in the sharp comparable meaning and scope of claim, is all considered to be and is included within the scope of the claims.
Claims (3)
1. a kind of production method of fish-farming with sewage microalgae device, which is characterized in that include the following steps：
A. 50 parts of chitosans are weighed, is added in the ethanol solution of 60ml 95% and impregnates, 60 DEG C of swelling 2h of constant temperature；By 150 parts of perfume (or spice)
Oxalaldehyde is dissolved in the ethyl alcohol of 400ml 95%, and the soak for pouring into chitosan obtains mixed liquor；It is fast that mixed liquor is positioned over microwave
In fast reaction unit, 70 DEG C of heating temperature is set, reacts 10min, microwave power 300w, stirring；Reaction is completed, mistake after cooling
Filter, ethyl alcohol are washed, and are washed, are dried under vacuum to constant weight, obtain modification of chitosan powder；
B. 20 parts of natural smectite is weighed, 5% sodium hydroxide of natural smectite quality is weighed, by solid-liquid mass ratio 1:10 add
Enter 200ml distilled water, it is 5.6 to adjust pH, and 1h is stirred to react for 60 DEG C in water bath with thermostatic control, the freeze-day with constant temperature at 80 DEG C, fine grinding
100 mesh sieve, it is modified montmorillonite used to obtain sodium；
C. 40~80 parts of Kynoar powder is taken, is dissolved in 25~50 parts of dibutyl phthalates, 50~100 parts is added in and changes
Property Chitosan powder, 50~100 parts of modified montmorillonite used powder, 2~10 parts of Geniposides, under nitrogen protection in 210~223 DEG C of oil
After 4~6h of stirring is mixed into uniform solution in bath, standing and defoaming obtains polymer；Polymer is passed through into the mistake of 5 ‰ measuring accuracies
Weight scale feeder feeding double screw extruder, under the mixing kneading effect of 250~300rpm and 2~5MPa, makes material abundant
Be mixed into the casting solution of stable homogeneous, casting solution by spinning pump with the speed accurate measurement of 90~100g/min into
Enter nozzle, inner cavity is using the nitrogen of 36~50ml/min flow velocitys as hollow supporting body, after the air section evaporation of certain altitude
Phase separation and curing occur into the water-bath of 298K, is collected thick hollow-fibre membrane by collecting wheel with the speed of 25m/min；
D. thick hollow-fibre membrane c being prepared is immersed in 95% industrial alcohol 24 hours, extracts dibutyl phthalate
Diluent, during which needs to change ethyl alcohol 2 times, it is ensured that diluent extraction is clean, and the hollow-fibre membrane that extraction finishes is rinsed with clear water
It is clean to obtain hollow-fibre membrane；
E. hollow-fibre membrane is taken, is assembled into duplicature column, there are the space of 3~7cm wide among duplicature, outermost tunic bottom is set
Dump valve is equipped with, obtains adsorption column；
F. multiple adsorption columns are vertically fixed with brandreth, innermost layer hollow space parallel connection is connect with suction pump, is positioned over reaction tank
In, fill microalgae, you can carry out sewage disposal；
G. after running 4~7 days；Hollow-fibre membrane is cleaned 2 hours with 2~5wt%HCl, then with 2000~3000mg/L
NaClO+1000~2000mg/L NaOH are cleaned 2 hours, and every component cleans flux as 15~30L/h, 23~25 DEG C of temperature,
Eluent recycles after collecting for metal ion.
2. a kind of production method of fish-farming with sewage microalgae device according to claim 1, it is characterised in that：Described is poly- inclined
Vinyl fluoride molecular weight is 30~40kDa, a concentration of 30~35wt% of Kynoar.
3. a kind of production method of fish-farming with sewage microalgae device according to claim 1, it is characterised in that：Phthalic acid
Dibutyl ester, modification of chitosan, modified montmorillonite used powder ratio of weight and number are 1:2:2~2:2:5.
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| CN201810770215.XA CN108862610B (en) | 2017-10-11 | 2017-10-11 | Device for cultivating microalgae by using sewage and manufacturing method thereof |
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| CN113578943A (en) * | 2021-07-19 | 2021-11-02 | 武汉理工大学 | Method for repairing lead-polluted soil by using microalgae-montmorillonite compound |
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| JPH09248557A (en) * | 1996-03-13 | 1997-09-22 | Toshiba Corp | Water purifier |
| US5951875A (en) * | 1996-12-20 | 1999-09-14 | Eastman Chemical Company | Adsorptive bubble separation methods and systems for dewatering suspensions of microalgae and extracting components therefrom |
| CN102502996A (en) * | 2011-11-15 | 2012-06-20 | 镇江绿能环保科技有限公司 | Pretreatment technical flow for applying industrial sewage to microalgae aquaculture |
| CN102500158B (en) * | 2011-11-29 | 2014-03-26 | 无锡格瑞普尔膜科技有限公司 | Preparation method for high-efficiency filter medium with adion exchanging function and membrane filtering function |
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| CN103274527B (en) * | 2013-05-23 | 2015-01-28 | 南昌大学 | Continuous system for treating organic wastewater by using microalgae |
| CN103409321A (en) * | 2013-07-26 | 2013-11-27 | 清华大学 | Microalgae suspension-adhesion mixed culture and separated harvesting method based on suspended carrier |
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