CN105621631B - Continue the biological prosthetic device and method of adsorbing metal ions using active dry yeasr - Google Patents
Continue the biological prosthetic device and method of adsorbing metal ions using active dry yeasr Download PDFInfo
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- CN105621631B CN105621631B CN201610055468.XA CN201610055468A CN105621631B CN 105621631 B CN105621631 B CN 105621631B CN 201610055468 A CN201610055468 A CN 201610055468A CN 105621631 B CN105621631 B CN 105621631B
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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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
- C02F3/347—Use of yeasts or fungi
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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
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/06—Nutrients for stimulating the growth of microorganisms
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Abstract
The invention discloses a kind of biological prosthetic device and method for continuing adsorbing metal ions using active dry yeasr, fluid matrix and yeast cells suspension are cultivated in biomass culture module, adsorption reaction module is by the two-way fluidisation adsorption tube post for cultivating obtained bio-matrix suction adsorption reaction module, simultaneously bi-directionally fluidized absorption tubing string is pumped into metallic solution storage tank respectively, metal ion solution in acid liquor storage tank and substrate storage tank, acid solution and matrix nutrient solution, separate and recover the solution after adsorbing metal in the two-way fluidisation adsorption tube post of module collection, and metal is carried out being separated and recovered from utilizing, yeast cells is imported in biomass culture module and reused.The present invention cultivates yeast cells the processing that heavy metal wastewater thereby is directly used in during to the highest growth rate in bioreactor, both ensure that the maximum adsorption capacity of yeast cells, and the yeast cells of suspended dispersed can more increase adsorption area；Meanwhile used yeast cells suspension can recycle Posterior circle utilization in time, both improve treatment effect, reduce operating cost again, reach the purpose of high-efficiency and economic.
Description
Technical field
The present invention relates to heavy metal-containing wastewater treatment field, and in particular to a kind of biological prosthetic device and method.
Background technology
In recent years, with the development of the social economy, industry still occupies main status in Chinese society in the market, electroplate, adopt
The burning etc. of ore deposit, metallurgy, intermetallic composite coating, Chemical Manufacture, fossil fuel all produces the largely industrial wastewater containing heavy metal, in nature
With enter water body in the presence of artificial disturbance, destroy quality of water environment.Part heavy metal element sheet is necessary to biological growth
Element, but it is most of there is toxicity and be carcinogen, there is disguised, chronicity and irreversibility, be a kind of conservative,
Non-degradable element type pollutant, there is teratogenesis, carcinogenic, lethal harm to aquatile, excessive emissions are into environment water
The ecological balance is easily destroyed, and the ecosystem and human health, thus the heavy metal pollution of water body are endangered by food chain enrichment
All it is the problem of environmental pollution that researcher pays special attention to for a long time.
The heavy metal pollution problem getting worse of Water-environment Ecological System, processing means are also constantly subjected to common concern.Pass
The heavy metal containing wastewater treatment technology of system includes chemical precipitation method, carbon absorption method, ion-exchange, evaporation etc., but generally has
Processing low concentration wastewater in distress, the shortcomings of easily causing secondary pollution.Compared to traditional Treatment process, bioremediation Technology has
The advantages that cost is low, suitable for processing low concentration wastewater, non-secondary pollution.Beer yeast cells are as a kind of good biological adsorption
Agent, the immobilization technology of yeast cells are carried out extensively in the improvement of heavy metal wastewater thereby.However, the immobilization skill of biological cell
Although the heavy metal that art can be effectively in Adsorption waste water, reduces secondary pollution, still suffer from fixed base matter and be difficult to clean and return
The problems such as receipts utilize, and the contact area of immobilization biological cell and waste water is limited, cost is higher and treatment effect is not satisfactory.
At present, fixed yeast cell treatment technology still needs to separately carry out the production of adsorbate and adsorption process, can not
Realize production absorption biomass and carry out the continuous service system of suction-operated simultaneously.There are some researches show optimal adsorbate
Matter needs maximum surface area, and this surface area requirements biological cell has higher growth rate, fixed yeast cell
Treatment technology can not be realized directly and quickly is used for adsorption process by the yeast cells under the highest growth rate, and then can be to absorption
Effect.
The content of the invention
Goal of the invention：In view of the above-mentioned deficiencies in the prior art, it is an object of the present invention to provide, one kind is sustainable efficiently to be removed
The biological prosthetic device and method for continuing adsorbing metal ions using active dry yeasr of heavy metals in industrial wastewater ion, Neng Gouti
High water quality simultaneously recycles heavy metal.
Technical scheme：The invention provides it is a kind of using active dry yeasr continue adsorbing metal ions biological prosthetic device,
It is characterized in that：Including the biomass culture module, adsorption reaction module and separation and recovery module being linked in sequence, the absorption
Reaction module includes connection biomass culture module and connects metallic solution storage tank, acid liquor storage tank and substrate storage tank simultaneously
Two-way fluidisation adsorption tube post, the bottom of the two-way fluidisation adsorption tube post are provided with aeration cleaning module, the aeration cleaning module
Gas tank including connecting the two-way fluidisation adsorption tube post by flowmeter, what the separation and recovery module included being sequentially connected sinks
Shallow lake pond, metal separating device, activated yeast device, yeast-inoculated liquid culture apparatus simultaneously take back the biomass culture module.
Further, the biomass culture module includes the biomass cultivation reactor for being connected with fluid matrix storage tank, institute
State in biomass cultivation reactor and be provided with agitator.
Further, the gas tank of the aeration cleaning module also connects the biomass culture by another flowmeter and reacted
Device, lead between the gas tank and flowmeter of the biomass cultivation reactor and be provided with gas cleaning plant.
Further, the two-way fluidisation adsorption tube post is the cylindrical tube for including three layers of post jamb, by space in pipe by outer
Inwardly it is in turn divided into outside guiding region, air injection annulus and internal diversion area, the outer wall of the air injection annulus
It is provided with aerojet vortex tube.
A kind of biological renovation method for continuing adsorbing metal ions using active dry yeasr, fluid matrix and yeast cells suspension
Cultivated in biomass culture module, the bio-matrix that adsorption reaction module obtains culture is pumped into adsorption reaction module
In two-way fluidisation adsorption tube post, at the same the two-way fluidisation adsorption tube post be pumped into respectively metallic solution storage tank, acid liquor storage tank and
Metal ion solution, acid solution and matrix nutrient solution in substrate storage tank, aeration cleaning module control gas by gas flowmeter
The air capacity that tank enters in the two-way fluidisation adsorption tube post, separate and recover and inhaled in two-way fluidisation adsorption tube post described in module collection
Solution after attached metal, by sedimentation basin, top overflow water outlet, bottom precipitation enters the separation that metal separating device enters row metal
And recycle, yeast cells then go successively to activated yeast device activation, then by yeast-inoculated liquid culture apparatus culture after
Import in the biomass culture module and reuse.
Further, heavy metal-containing waste water separately flows into the outside water conservancy diversion in pipe from the top of the two-way fluidisation adsorption tube post
Area and internal diversion area, the sky that the aeration cleaning module of lower end is injected a gas between outside guiding region and internal diversion area
Gas injects annulus, then is injected by aerojet vortex tube in the liquid of inside and outside portion guiding region, liquid is formed fluidisation shape
State, so that the cluster of grains coalescence precipitation in adsorption column, yeast cells floats on a liquid, so as to increase yeast cells and metal
The contact area of ion, reach optimal adsorption concentration.
Further, the biomass culture module is provided with fluid matrix storage tank, and fluid matrix enters biology by suction pump
Matter cultivation reactor is simultaneously stirred culture by agitator.
Further, the biomass cultivation reactor and two-way fluidisation adsorption tube post work simultaneously, realize that yeast cells hangs
The online production of liquid, and continue efficiently to provide yeast cells suspension to adsorb the heavy metal ion in waste water.
Preferably, the maximum specific growth rate of yeast cells is 0.0996h in the biomass cultivation reactor-1,
It is 1.4L/min that the gas of 1.5L biomass cultivation reactor, which is passed through speed, and material effluent stream speed is 2.37mL/min, with dimension
Hold liquid level stabilizing.
Preferably, the optimal adsorption concentration of yeast cells suspension is 2.8g/L in the two-way fluidisation adsorption tube post.
Beneficial effect：The present invention is directly used in weight when yeast cells is cultivated to the highest growth rate in bioreactor
The processing of metallic wastewater, both ensure that the maximum adsorption capacity of yeast cells, and the yeast cells of suspended dispersed can more increase absorption
Area；Meanwhile used yeast cells suspension can recycle Posterior circle utilization in time, both improve treatment effect, drop again
Low operating cost, reach the purpose of high-efficiency and economic.
Brief description of the drawings
Fig. 1 is the structural representation of the biological prosthetic device of the present invention；
Fig. 2 is the cross-sectional view of two-way fluidisation adsorption tube post；
Fig. 3 is yeast cell growth curve map (chain-dotted line is fitting yeast cells optimum growh rate curve)；
Fig. 4 is Cu under different initial concentrations+And Pb+Removal efficiency curve；
Fig. 5 is the Cu that initial concentration is 5mg/L+And Pb+Removal efficiency curve in 30h.
Embodiment
Technical solution of the present invention is described in detail below, but protection scope of the present invention is not limited to the implementation
Example.
Embodiment：A kind of active dry yeasr of the present embodiment continues the biological prosthetic device of adsorbing metal ions, as shown in figure 1,
Including biomass culture modules A, adsorption reaction module B, aeration cleaning module C and separation and recovery module D.Biomass culture module
A is provided with fluid matrix storage tank 1, and fluid matrix enters biomass cultivation reactor 3 by suction pump 2, liquid is full of container
4/5, pass through the stir culture of agitator 4.The preparation of yeast cells suspension：Transfer activity dry ferment is to 500mL containing aseptic substrate
Yeast-inoculated liquid is prepared in arrow-necked bottle, at 25 DEG C, arrow-necked bottle is placed in and shakes speed to be cultivated in 200rpm shaking table, in yeast cells
Yeast cells suspension is obtained during exponential phase (after the culture 14-18h) of growth, and is inoculated into 1.5L biomass cultivation reactors
In 3；In addition, the reactor 3 stirs at 200 rpm, and 1.4L/min gas is passed through at room temperature.Fluid matrix is by 18g/L
Glucose, 4.5g/L peptone, 2.9g/L yeast extract and 2.9g/L malt extract composition, it is final to obtain
Concentration is about 2.8g/L biomass solution.
Adsorption reaction module B is be connected with metallic solution storage tank 21, acid liquor storage tank 19 and substrate storage tank 20 two-way
Fluidized absorption tubing string 6, as shown in Fig. 2 two-way fluidisation adsorption tube post 6 is cylindrical tube, provided with three layers of post jamb, post jamb is by pipe
Space ecto-entad is in turn divided into outside guiding region 30, air injection annulus 31 and internal diversion area 29, air injection ring
The outer wall in shape area 31 is provided with aerojet vortex tube 10.
When biomass solution concentration reaches about 2.8g/L in biomass cultivation reactor 3, suction pump 2,5 is distinguished simultaneously
Delivering fluid matrix is transferred in 1.2L two-way fluidisation adsorption tube post to reactor 3 and by biomass solution, is needed in reactor 3
Yeast cells is maintained to stable exponential growth, when yeast cells reaches maximum particular growth speed 0.0996h-1
When, make biomass outflow reactor 3, coutroi velocity 2.37mL/min.Adsorption reaction module B is by suction pump 5 by culture
Bio-matrix is pumped into two-way fluidisation adsorption tube post 6, while extracts gold in metallic solution storage tank 21 respectively by suction pump 22,17,18
Belong to solion, the acid solution in acid liquor storage tank 19 and the matrix nutrient solution in substrate storage tank 20, to absorption tubing string 6
Liquid level of solution reaches at the 4/5 of master container.Specifically, the preparation of metal ion solution：Cu and Pb is target affinity metal, Cu2+
And Pb2+CuSO is respectively adopted in the preparation of storing solution4-5H2O solution and Pb (NO3)2Solution；Acid solution is using 1.8mol/L's
HCL and 1.8mol/L NaOH solution mixed preparing, it is 5.6 (for Cu) and 5.1 (for Pb) until obtaining optimal PH
Acid solution, matrix nutrient solution is conventional yeasts cellular matrix nutrient solution.
Aeration cleaning module C includes gas tank 14, and it is anti-that gas tank 14 connects biomass culture by two flowmeters 13,16 respectively
The bottom of device 3 and the bottom of two-way fluidisation adsorption tube post 6 are answered, controls gas tank 14 to enter reactor 3 respectively by flowmeter 16,13
And the air capacity in absorption tubing string 6 is 1.4L/min, the gas being passed through in reactor 3 is purified using gas cleaning plant 15.Stream
Gauge 13 injects a gas into the air injection annulus 31 among inside and outside portion guiding region 29,30 in two-way fluidisation adsorption tube post 6,
Injected again by aerojet vortex tube 10 in solution, form fluidized state, cause liquid to produce disturbance, yeast cells can be with water
Stream is in suspended state, adds the contact area of yeast cells and heavy metal wastewater thereby.
The first sedimentation basin 23 that separation and recovery module D includes being sequentially connected, the second sedimentation basin 24, metal separating device 25,
Activated yeast device 26, yeast-inoculated liquid culture apparatus 27, wherein the first sedimentation basin 23 connects the bottom of two-way fluidisation adsorption tube post 6
Portion, yeast-inoculated liquid culture apparatus 27 take back biomass cultivation reactor 3.Separate and recover molten after module D collection adsorbing metals
Liquid, by the first sedimentation basin 23 and the second sedimentation basin 24, top overflow water outlet, bottom precipitation enters metal separating device 25, point
From metal recovery utilize, yeast cells then activates into activated yeast device 26, then passes through yeast-inoculated liquid culture apparatus 27
It is pumped into reactor 3 and is reused by suction pump 28 after culture.
Determination sample is taken from metallic solution storage tank 21, adsorbent fluidization post sample tap 7 and secondary precipitation groove water outlet：
Fig. 3 yeast cell growth curve maps are obtained, yeast cells maximum growth rate is obtained by curve matching, takes yeast
Biomass solution concentration under cell maximum growth rate is 2.8g/L；
Obtain the curve map that Fig. 4 seeks metal ion Cu and the Pb removal effect under different initial concentrations, in figure display with
The increase of initial concentration, metal ion removal effect is gradually reduced, but level is tended towards stability after reaching finite concentration；
Obtain the initial concentration Cu that Fig. 5 chooses 5mg/L+And Pb+Removal efficiency curve map in 30h, show in figure, Cu+
And Pb+Initial clearance fluctuation is larger, and the later stage gradually tends towards stability, but the overall situation that removes is relatively stable, and clearance is higher, inhales
Attached removal effect is preferable.
Claims (8)
- A kind of 1. biological prosthetic device for continuing adsorbing metal ions using active dry yeasr, it is characterised in that：Including being linked in sequence Biomass culture module, adsorption reaction module and separation and recovery module, the adsorption reaction module include connection biomass Cultivate module and connect the two-way fluidisation adsorption tube post of metallic solution storage tank, acid liquor storage tank and substrate storage tank simultaneously, it is described The bottom of two-way fluidisation adsorption tube post is provided with aeration cleaning module, and the aeration cleaning module is included by described in flowmeter connection The gas tank of two-way fluidisation adsorption tube post, the separation and recovery module include sedimentation basin, metal separating device, the yeast being sequentially connected Activation device, yeast-inoculated liquid culture apparatus simultaneously take back the biomass culture module；The two-way fluidisation adsorption tube post is bag The cylindrical tube of three layers of post jamb is included, space ecto-entad in pipe is in turn divided into outside guiding region, air injects annulus With internal diversion area, the outer wall of the air injection annulus is provided with aerojet vortex tube.
- 2. the biological prosthetic device according to claim 1 for being continued adsorbing metal ions using active dry yeasr, its feature are existed In：The biomass culture module includes the biomass cultivation reactor for being connected with fluid matrix storage tank, the biomass culture Agitator is provided with reactor.
- 3. the biological prosthetic device according to claim 2 for being continued adsorbing metal ions using active dry yeasr, its feature are existed In：The gas tank of the aeration cleaning module also connects the biomass cultivation reactor by another flowmeter, leads to the life Gas cleaning plant is provided between the gas tank and flowmeter of material cultivation reactor.
- A kind of 4. life using the biological prosthetic device for continuing adsorbing metal ions using active dry yeasr as claimed in claim 1 Thing restorative procedure, it is characterised in that：Fluid matrix and yeast cells suspension are cultivated in biomass culture module, and absorption is anti- The bio-matrix for answering module to obtain culture is pumped into the two-way fluidisation adsorption tube post of adsorption reaction module, while the bidirectional flow Change absorption tubing string be pumped into respectively metal ion solution in metallic solution storage tank, acid liquor storage tank and substrate storage tank, acid solution and Matrix nutrient solution, aeration cleaning module control gas tank into the air in the two-way fluidisation adsorption tube post by gas flowmeter Amount, the solution after adsorbing metal in two-way fluidisation adsorption tube post described in module collection is separated and recovered, passes through sedimentation basin, top overflow Water outlet, bottom precipitation, which enters metal separating device, to be entered row metal and is separated and recovered from utilizing, and yeast cells then goes successively to yeast Device activation is activated, then is reused by being imported after yeast-inoculated liquid culture apparatus culture in the biomass culture module； The air injection annulus that the aeration cleaning module is injected a gas between outside guiding region and internal diversion area, then pass through sky Gas blowout gas eddy flow tube is injected in the liquid of inside and outside portion guiding region, liquid is formed fluidized state, so that the particle in adsorption column Reunite and precipitate.
- 5. biological renovation method according to claim 4, it is characterised in that：The biomass culture module is provided with liquid base Matter storage tank, fluid matrix enter biomass cultivation reactor by suction pump and are stirred culture by agitator.
- 6. biological renovation method according to claim 5, it is characterised in that：The biomass cultivation reactor and bidirectional flow Change absorption tubing string to work simultaneously.
- 7. biological renovation method according to claim 5, it is characterised in that：Yeast is thin in the biomass cultivation reactor The maximum specific growth rate of born of the same parents is 0.0996 h-1, it is 1.4 that the gas of 1.5 L biomass cultivation reactor, which is passed through speed, L/min, material effluent stream speed is 2.37 mL/min.
- 8. biological renovation method according to claim 4, it is characterised in that：Yeast is thin in the two-way fluidisation adsorption tube post The optimal adsorption concentration of born of the same parents' suspension is 2.8 g/L.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101851588A (en) * | 2009-04-01 | 2010-10-06 | 中国海洋大学 | Culture method for improving adsorption capacity of zygosaccharomyces rouxii heavy metal cadmium |
| CN102701511A (en) * | 2011-03-28 | 2012-10-03 | 上海鑫洲生物科技有限公司 | Method and apparatus for wastewater treatment and heavy metal recycling by non-stationary type bio-adsorbent |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11244892A (en) * | 1998-03-03 | 1999-09-14 | Tax Adm Agency | Treatment of oil-containing waste water |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101851588A (en) * | 2009-04-01 | 2010-10-06 | 中国海洋大学 | Culture method for improving adsorption capacity of zygosaccharomyces rouxii heavy metal cadmium |
| CN102701511A (en) * | 2011-03-28 | 2012-10-03 | 上海鑫洲生物科技有限公司 | Method and apparatus for wastewater treatment and heavy metal recycling by non-stationary type bio-adsorbent |
Non-Patent Citations (1)
| Title |
|---|
| "Cadmium Biosorption by Saccharomyces cerevisiae";B.Volesky et al;《Biotechnology and Bioengineering》;19931231;第41卷;摘要、材料和方法章节内容 * |
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