CN110104770A - A kind of use in waste water treatment biomembrane and preparation method thereof - Google Patents
A kind of use in waste water treatment biomembrane and preparation method thereof Download PDFInfo
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- CN110104770A CN110104770A CN201910368410.4A CN201910368410A CN110104770A CN 110104770 A CN110104770 A CN 110104770A CN 201910368410 A CN201910368410 A CN 201910368410A CN 110104770 A CN110104770 A CN 110104770A
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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
- C02F3/28—Anaerobic digestion processes
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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
- C02F3/28—Anaerobic digestion processes
- C02F3/2806—Anaerobic processes using solid supports for microorganisms
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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
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/34—Organic compounds containing oxygen
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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
Abstract
The present invention provides a kind of use in waste water treatment biomembrane and preparation method thereof, and in particular to technical field of waste water purification.The present invention polymerize to obtain bio-trickling filter filler through Catalyzed by Formic Acid using polylactic acid, polyvinyl alcohol, then by being inoculated with nutritive mud and sprinkling nutrient solution on filler, use in waste water treatment biomembrane is prepared.Biomembrane prepared by the present invention is good with filler compatibility, it can steadily be attached on filler, foreshorten to fixed time highest 3 hours, and there is efficient removal rate to Recalcitrant chemicals, to organic removal rate in industrial wastewater up to 90% or more, Isosorbide-5-Nitrae-dioxane removal rate is up to 94% or more, and dioxin removal rate is up to 93% or more.Another object of the present invention is to provide the preparation method of the biomembrane, this method is stably and controllable, is easily achieved, and is suitable for large-scale production.
Description
[technical field]
The present invention relates to technical field of waste water purification technical fields, and in particular to a kind of use in waste water treatment biomembrane and its system
Preparation Method.
[background technique]
Often contain a large amount of organic pollutants in industrial wastewater, needs just be discharged into sewer by purified treatment, wherein
The organic matter difficult to degrade such as Isosorbide-5-Nitrae-dioxane, dioxin is the difficult point of processing, if degradation not exclusively can be to animals and plants and environment
Cause significant damage.Currently, including absorption and sorption, burning, catalysis and biologic treating technique to the processing technique of industrial wastewater
Deng.Wherein biologic treating technique includes biofiltration, bio-trickling and zinc cation technology etc., has high treating effect, without two
Secondary pollution, investment and operating cost is low, the advantages that being easily managed, thus be used widely.
The process of bio-trickling processing technique includes: that the filler of certain altitude is placed in bio-trickling filter, then will be micro-
Bacterization is cultivated on filler and forms biomembrane, and pollutant is at the top of trickling filter or bottom enters filler, is passing through filler
In the process, effect of mass transmitting enters biomembrane to pollutant through a variety of ways, by microbial degradation in biomembrane, final product two
Thus carbonoxide and water, pollutant also become harmless object and are discharged from trickling filter.Therefore, the quality of the biomembrane of formation is to influence
The key factor of pollutant process effect, and the quality of biomembrane and the filler of use, culture substrate and nutrient solution are closely related.
Filler is both that the support carrier of microorganism growth and mass transfer media, performance directly affect the formation of biomembrane, correlative study
Show that the type of filler, partial size, porosity and specific surface area are direct in the treatment effeciency and trickling filter of biomembrane in industrial wastewater
It is related.Currently, study both at home and abroad the bio-trickling filter filler mainly used have sponge, corallite, haydite, sky plastics, zeolite,
Coal ash, active carbon, quartz sand, clinker, coke etc. also have using high molecular polymer as filler, such as polypropylene, polyolefin
The materials such as class, polyamide, polyvinyl chloride.Although the improvement of these fillers makes pollutant process efficiency be improved, but still
There is a problem of that microorganism and filler poor compatibility, biomembrane fixed time are long, low to Recalcitrant chemicals handling rate.Form life
The culture substrate of object film routine is activated sludge, and nutrient solution is also mostly single carbohydrate, inorganic salts and nitrogen substance, culture
The time of consuming is long, and the biomembrane of formation is low to the degradation rate of hardly degraded organic substance.
Therefore, in order to realize the efficient removal of pollutant, the removal rate to hardly degraded organic substance is especially improved, selection is suitable
The use in waste water treatment biomembrane that the high efficiency packing of conjunction microorganism growth prepares function admirable is very necessary.
[summary of the invention]
Goal of the invention of the invention is: for the processing of industrial wastewater, there are microorganisms and filler poor compatibility, biology
The problem of problem that the film fixation time is long, biomembrane is low to Recalcitrant chemicals handling rate, provides a kind of use in waste water treatment biology
Film and preparation method thereof.Biomembrane prepared by the present invention is good with filler compatibility, can steadily be attached on filler, when making fixation
Between highest foreshorten to 3 hours, and to Recalcitrant chemicals have efficient removal rate, organic removal rate in industrial wastewater is reached
90% or more, Isosorbide-5-Nitrae-dioxane removal rate is up to 94% or more, and dioxin removal rate is up to 93% or more.Another object of the present invention
It is the provision of the preparation method of the biomembrane, this method is stably and controllable, is easily achieved, and is suitable for large-scale production.
To achieve the goals above, The technical solution adopted by the invention is as follows:
A kind of preparation method of use in waste water treatment biomembrane, comprising the following steps:
A. by weight, 20-38 parts and formic acid solution 4-10 parts of polylactic acid are taken, is added in reaction kettle, stirs evenly,
It is then heated to 87-94 DEG C, adds 10-28 parts of soybean protein isolate, is stirred to react 150-190 minutes；
B. it is cooled to 50-72 DEG C, polyvinyl alcohol 4-10 parts and manganese acetate 0.2-0.8 parts is added, then heats to 96-120
DEG C reaction 64-90 minutes, be then cooled to 60-82 DEG C；
C. 60-82 DEG C is maintained the temperature at, is added ceramic powder 14-24 parts, is stirred 12-28 minutes, then plastic emitting obtains glue；
D. glue in step c is taken, after being cooled to room temperature, liquid nitrogen 120-140 parts is added, impregnates 12-20 minutes, then take
Out, being crushed to partial size is 5-16 mesh, obtains filler；
E. take the filler being prepared in step d to be placed in bio-trickling filter and form packed bed, the packed bed with a thickness of
11-21cm；
F. it is passed through carbon dioxide into bio-trickling filter and drains air, obtain anaerobic environment, be then inoculated on packed bed
Nutritive mud is discharged after keeping anaerobic environment 38-48 hours closed in nutritive mud, completes inoculation；The nutritive mud includes following weight
The raw material of part ratio: 120-140 parts of marsh gas water, 32-52 parts of hydrotalcite powder, 31-49 parts of bean dregs, 1-6 parts of clostridium pasteurianum；
G. the anaerobic environment for keeping bio-trickling filter, then sprays nutrient solution, the nutrition on packed bed after inoculation
The sprinkling volume of liquid is that every 100g filler sprays 102-140ml, primary every sprinkling in 3-8 hours, after sprinkling 5-14 days, completes to hang
Film, it is continuous every 40-60 days later to spray nutrient solution 6-14 days.
Optimization, ceramic powder described in step c includes the raw material of following weight part ratio: 52-72 parts of kaolinite, ethyl alcohol 11-
20 parts, 2-4 parts of dodecyl sodium sulfate, 0.2-1.6 parts of nitric acid ammonia, 0.2-1.1 parts of potassium dihydrogen phosphate.
Advanced optimize, the ceramic powder the preparation method comprises the following steps: by weight, taking kaolinite to be ground into powder, so
Powder is divided into three equal parts afterwards, takes first part of powder that ethyl alcohol and dodecyl sodium sulfate is added, uniformly, nitric acid is then added in grinding
Ammonia, potassium dihydrogen phosphate and second part of powder, then grind uniformly, it is subsequently added into third part powder, continues grinding uniformly, volatilizes later
Ethyl alcohol then toasts 2-7 hours at 310-390 DEG C to no alcohol taste, is finally cooled to room temperature, then crush, obtains ceramic powder.
Further optimize, nutritive mud described in step f the preparation method comprises the following steps: by weight, after taking bean dregs to crush
It is added in fermentor, the marsh gas water of hydrotalcite powder and 1/3-1/5 weight is then added, stirs evenly, hair is aerated at 40-55 DEG C
Ferment 25-35 days, it is subsequently added into clostridium pasteurianum and remaining marsh gas water, sealed fermenting 20-30 days at 30-40 DEG C must be sought
Support mud；The aeration quantity of the aerated fermentation is 110-150L/min.
Further optimize again, nutrient solution described in step g includes the raw material of following weight part ratio: marsh gas water 51-61
Part, 25-45 parts of hydrotalcite powder, 2-10 parts of glycerol, 0.2-1.2 parts of chitosan, 0.2-1 parts of trehalose.
Further optimize again, in step b after polyvinyl alcohol and manganese acetate is added, is first passed through nitrogen and heats up again.
Further optimize again, packed bed described in step e is 2-5 layers, between the packed bed between be divided into 35-
55cm。
Further optimize again, the mass fraction of formic acid solution described in step a is 30%-80%.
A kind of use in waste water treatment biomembrane that above-mentioned preparation method obtains.
In conclusion by adopting the above-described technical solution, the beneficial effects of the present invention are:
1. the present invention polymerize to obtain bio-trickling filter filler through Catalyzed by Formic Acid using polylactic acid, polyvinyl alcohol, then by
It is inoculated with nutritive mud and sprinkling nutrient solution on filler, use in waste water treatment biomembrane is prepared.Biomembrane prepared by the present invention with fill out
Expect that compatibility is good, can steadily be attached on filler, foreshorten to fixed time highest 3 hours, and has to Recalcitrant chemicals
Have efficient removal rate, to organic removal rate in industrial wastewater up to 90% or more, Isosorbide-5-Nitrae-dioxane removal rate up to 94% with
On, dioxin removal rate is up to 93% or more.Another object of the present invention is to provide the preparation method of the biomembrane, this method
It is stably and controllable, be easily achieved, be suitable for large-scale production.
2. the three-dimensional polymeric molecule cross-linking agent that the present invention is formed by Catalyzed by Formic Acid and polyvinyl alcohol solidification, has and stablizes
Space structure and fine and close hole, there is capillary attraction effect, can effectively adsorb microorganism, be conducive to microorganism and filling out
Thick and solid biomembrane is formed on material, is shortened the biomembrane fixed time, is improved the working efficiency for removing pollutant in industrial wastewater,
Especially improve the removal rate of Recalcitrant chemicals.Of both formic acid in the present invention plays the role of, first is that being used for soybean
In addition separation proteolysis is also used to promote protein hydrolysate and polylactic acid that polymerization reaction occurs, urge in formic acid at small molecule peptide chain
Under change, positively charged group is formed on small molecule peptide chain, the carbonyl in attack polylactic acid is condensed, and forms branched line style
Macromolecule condensed polymer.The addition of polyvinyl alcohol can make the branch of linear macromolecule condensation polymer further solidify crosslinking in the present invention
Form three-dimensional polymeric molecule cross-linking agent.
It is more firm that it is additionally added the three-dimensional polymeric molecule cross-linking agent structure that manganese acetate forms curing reaction in the present invention, and leads to
Enter the catalytic activity that nitrogen maintains manganese acetate, to promote the chemical bond quantity to form crosslinking.Manganese acetate can also be raw for microorganism
It is long that required manganese element is provided, can the intracorporal various enzymes of activating microorganisms, play the role of promoting microorganism growth, to biology
The formation active influence of film further shortens the biomembrane fixed time, improves the work effect in industrial wastewater removal pollutant
Rate.
3. the ceramic surface being added in the present invention is coarse, large specific surface area, stabilized structure, it is capable of increasing filler and microorganism
Compatibility, shorten the biomembrane fixed time, improve biofilm speed, to improve the working efficiency of biomembrane removal pollutant,
Especially improve the removal rate in industrial wastewater Recalcitrant chemicals.
Ceramic powder of the invention is by the way that dodecyl sodium sulfate, ammonium nitrate, potassium dihydrogen phosphate system are added in kaolinite
It is standby and obtain.Using dodecyl sodium sulfate and ethyl alcohol as dispersing agent, ammonium nitrate, potassium dihydrogen phosphate are dispersed in kaolinite
In, after toasting at 310-390 DEG C, ammonium nitrate, which gradually decomposes, generates gas, and collision, the evolution of gas make kaolinite become crisp
Loose porous, rough surface, and potassium dihydrogen phosphate melts glassing form at high temperature, branch is played in the gap loose to kaolin
Support effect, makes that kaolin structure is firm, gap is intensive, to the fixed time for shortening biomembrane and promotes biomembrane to pollutant
Removal effect generates positive effect.
4. nutritive mud is prepared, and combines using marsh gas water, hydrotalcite powder, bean dregs, clostridium pasteurianum in the present invention
The nutrient solution that marsh gas water, hydrotalcite powder, glycerol, chitosan, trehalose are prepared, can generate has efficiently removal Industry Waste
The biomembrane of Recalcitrant chemicals in water, and the biomembrane and the filler compatibility that is prepared are good, it in a short time just can shape
It is fixed at stablizing.
Part marsh gas water is first added in nutritive mud in the present invention and hydrotalcite powder carries out aerated fermentation, adds remaining natural pond
Air water and clostridium pasteurianum carry out closed anaerobic fermentation, can improve in industrial wastewater the removal rate of Recalcitrant chemicals and
Shorten the biomembrane fixed time.When aerated fermentation, is degraded, obtained to Abundant protein in bean dregs using the microorganism in marsh gas water
To small molecule nitrogen, the charcoal compound for being conducive to biofilm formation, the layer structure of hydrotalcite powder provides fine and close microcosmic duct,
Enter the gas flow of nutritive mud when can increase aerated fermentation, improves fermentation efficiency, be conducive in microorganism fast degradation bean dregs
Protein, meanwhile, hydrotalcite powder is rich in magnesium, aluminium ion, can increase the quantity of microbe colony, biofilm development when making biofilm
Closely, biomembrane is improved to the removal rate of Recalcitrant chemicals.Production first when anaerobic fermentation, in clostridium pasteurianum and marsh gas water
Alkane bacterium is bred, and methanogen can improve the removal rate of Recalcitrant chemicals in industrial wastewater, and clostridium pasteurianum can be secreted
Auxin promotes anaerobe growth, shortens the biomembrane fixed time, while aerobic microbiological is dead point under anaerobic environment
Solution, the nutriment that the ingredients such as intracellular carbon, nitrogen can be grown directly as other anaerobes.
Nutrient solution in the present invention can be improved growth stability when microorganism colonization.Wherein, marsh gas water is rich in micro- life
Object can allow the microorganisms in biomembrane to update, keep the degradation vigor to pollutant；In hydrotalcite powder rich in magnesium, aluminium from
Son can increase the quantity of microbe colony, keep biofilm development close, improve removal of the biomembrane to Recalcitrant chemicals
Rate, microcosmic duct are additionally favorable for promoting adhesive force of the microorganism on filler, can shorten the biomembrane fixed time, increase micro- life
The growth stability of object；Glycerol can have additional nutrients the compatibility of liquid and biomembrane, improve in biomembrane microorganism to nutrient solution
Absorptivity；Chitosan and trehalose can be improved the resistance of microorganism, increase the vitality of microorganism, improve to pollutant
Removal rate.
5. the partial size of rationally control filler of the invention can shorten the biomembrane fixed time, promote biofilm speed in 5-16 mesh
Degree.The raw material for preparing of the invention is all made of environment-protecting and non-poisonous material, and obtained filler also has degradable, does not generate harmful substance
The advantages of.
[specific embodiment]
Below with reference to embodiment, the invention will be further described.
Embodiment 1
A kind of preparation method of use in waste water treatment biomembrane, comprising the following steps:
A. by weight, take 20 parts of polylactic acid and 4 parts of formic acid solution, be added in reaction kettle, stir evenly, then plus
Heat adds 10 parts of soybean protein isolate to 87 DEG C, is stirred to react 150 minutes；
Wherein, the mass fraction of formic acid solution is 30%.
B. 50 DEG C are cooled to, is added 4 parts and 0.2 part of manganese acetate of polyvinyl alcohol, then heats to 96 DEG C of reactions 64 minutes, so
After be cooled to 60 DEG C；
C. 60 DEG C are maintained the temperature at, is added 14 parts of ceramic powder, is stirred 12 minutes, then plastic emitting obtains glue；
Wherein, ceramic powder includes the raw material of following weight part ratio: 52 parts of kaolinite, 11 parts of ethyl alcohol, dodecyl sodium sulfate 2
Part, 0.2 part of nitric acid ammonia, 0.2 part of potassium dihydrogen phosphate.
Ceramic powder the preparation method comprises the following steps: by weight, kaolinite is taken to be ground into powder, then powder is divided into third
Part, take first part of powder to be added ethyl alcohol and dodecyl sodium sulfate, grinding uniformly, be then added nitric acid ammonia, potassium dihydrogen phosphate and
Second part of powder, then grind uniformly, it is subsequently added into third part powder, continues grinding uniformly, volatilizes ethyl alcohol later to no alcohol taste, connect
Toasted 2 hours at 310 DEG C, be finally cooled to room temperature, then crush, obtain ceramic powder.
D. glue in step c is taken, after being cooled to room temperature, 120 parts of liquid nitrogen is added, impregnates 12 minutes, then take out, be crushed to
Partial size is 5 mesh, obtains filler；
E. take the filler being prepared in step d to be placed in bio-trickling filter and form packed bed, the packed bed with a thickness of
11cm；
Wherein, packed bed is 2 layers, between the packed bed between be divided into 35cm.
F. it is passed through carbon dioxide into bio-trickling filter and drains air, obtain anaerobic environment, be then inoculated on packed bed
Nutritive mud after being kept for anaerobic environment closed 38 hours, is discharged nutritive mud, completes inoculation；The nutritive mud includes following parts by weight
The raw material of ratio: 120 parts of marsh gas water, 32 parts of hydrotalcite powder, 31 parts of bean dregs, 1 part of clostridium pasteurianum；
Wherein, nutritive mud the preparation method comprises the following steps: by weight, be added in fermentor after taking bean dregs to crush, be then added
The marsh gas water of hydrotalcite powder and 1/3 weight, stirs evenly, and aerated fermentation 25 days, are subsequently added into clostridium pasteurianum at 40 DEG C
With remaining marsh gas water, sealed fermenting 20 days, obtain nutritive mud at 30 DEG C；The aeration quantity of the aerated fermentation is 110L/min.
G. the anaerobic environment for keeping bio-trickling filter, then sprays nutrient solution, the nutrition on packed bed after inoculation
The sprinkling volume of liquid is that every 100g filler sprays 102ml, primary every sprinkling in 3 hours, after sprinkling 5 days, completes biofilm, often later
Continuous sprinkling nutrient solution 6 days every 40 days.
Wherein, nutrient solution includes the raw material of following weight part ratio: 51 parts of marsh gas water, 25 parts of hydrotalcite powder, 2 parts of glycerol, shell
0.2 part of glycan, 0.2 part of trehalose.
Embodiment 2
A kind of preparation method of use in waste water treatment biomembrane, comprising the following steps:
A. by weight, 38 parts and 10 parts of formic acid solution of polylactic acid are taken, is added in reaction kettle, stirs evenly, then
94 DEG C are heated to, adds 28 parts of soybean protein isolate, is stirred to react 190 minutes；
Wherein, the mass fraction of formic acid solution is 80%.
B. 72 DEG C are cooled to, 10 parts and 0.8 part of manganese acetate of polyvinyl alcohol is added, then passes to nitrogen, be then warming up to 120
DEG C reaction 90 minutes, then it is cooled to 82 DEG C；
C. 82 DEG C are maintained the temperature at, is added 24 parts of ceramic powder, is stirred 28 minutes, then plastic emitting obtains glue；
Wherein, ceramic powder includes the raw material of following weight part ratio: 72 parts of kaolinite, 20 parts of ethyl alcohol, dodecyl sodium sulfate 4
Part, 1.6 parts of nitric acid ammonia, 1.1 parts of potassium dihydrogen phosphate.
Ceramic powder the preparation method comprises the following steps: by weight, kaolinite is taken to be ground into powder, then powder is divided into third
Part, take first part of powder to be added ethyl alcohol and dodecyl sodium sulfate, grinding uniformly, be then added nitric acid ammonia, potassium dihydrogen phosphate and
Second part of powder, then grind uniformly, it is subsequently added into third part powder, continues grinding uniformly, volatilizes ethyl alcohol later to no alcohol taste, connect
Toasted 7 hours at 390 DEG C, be finally cooled to room temperature, then crush, obtain ceramic powder.
D. glue in step c is taken, after being cooled to room temperature, 140 parts of liquid nitrogen is added, impregnates 20 minutes, then take out, be crushed to
Partial size is 16 mesh, obtains filler；
E. take the filler being prepared in step d to be placed in bio-trickling filter and form packed bed, the packed bed with a thickness of
21cm；
Wherein, packed bed is 5 layers, between the packed bed between be divided into 55cm.
F. it is passed through carbon dioxide into bio-trickling filter and drains air, obtain anaerobic environment, be then inoculated on packed bed
Nutritive mud after being kept for anaerobic environment closed 48 hours, is discharged nutritive mud, completes inoculation；The nutritive mud includes following parts by weight
The raw material of ratio: 140 parts of marsh gas water, 52 parts of hydrotalcite powder, 49 parts of bean dregs, 6 parts of clostridium pasteurianum；
Wherein, nutritive mud the preparation method comprises the following steps: by weight, be added in fermentor after taking bean dregs to crush, be then added
The marsh gas water of hydrotalcite powder and 1/5 weight, stirs evenly, and aerated fermentation 35 days, are subsequently added into clostridium pasteurianum at 55 DEG C
With remaining marsh gas water, sealed fermenting 30 days, obtain nutritive mud at 40 DEG C；The aeration quantity of the aerated fermentation is 150L/min.
G. the anaerobic environment for keeping bio-trickling filter, then sprays nutrient solution, the nutrition on packed bed after inoculation
The sprinkling volume of liquid is that every 100g filler sprays 140ml, primary every sprinkling in 8 hours, after sprinkling 14 days, completes biofilm, later
Continuous sprinkling nutrient solution 14 days every 60 days.
Wherein, nutrient solution includes the raw material of following weight part ratio: 61 parts of marsh gas water, 45 parts of hydrotalcite powder, 10 parts of glycerol, shell
1.2 parts of glycan, 1 part of trehalose.
Embodiment 3
A kind of preparation method of use in waste water treatment biomembrane, comprising the following steps:
A. by weight, 33 parts and 8.5 parts of formic acid solution of polylactic acid are taken, is added in reaction kettle, stirs evenly, then
88 DEG C are heated to, adds 15 parts of soybean protein isolate, is stirred to react 160 minutes；
Wherein, the mass fraction of formic acid solution is 43%.
B. 55 DEG C are cooled to, 5.5 parts and 0.4 part of manganese acetate of polyvinyl alcohol is added, then passes to nitrogen, be then warming up to
102 DEG C are reacted 70 minutes, then are cooled to 65 DEG C；
C. 65 DEG C are maintained the temperature at, is added 17 parts of ceramic powder, is stirred 16 minutes, then plastic emitting obtains glue；
Wherein, ceramic powder includes the raw material of following weight part ratio: 57 parts of kaolinite, 13 parts of ethyl alcohol, dodecyl sodium sulfate
2.4 parts, 0.5 part of nitric acid ammonia, 0.4 part of potassium dihydrogen phosphate.
Ceramic powder the preparation method comprises the following steps: by weight, kaolinite is taken to be ground into powder, then powder is divided into third
Part, take first part of powder to be added ethyl alcohol and dodecyl sodium sulfate, grinding uniformly, be then added nitric acid ammonia, potassium dihydrogen phosphate and
Second part of powder, then grind uniformly, it is subsequently added into third part powder, continues grinding uniformly, volatilizes ethyl alcohol later to no alcohol taste, connect
Toasted 3 hours at 330 DEG C, be finally cooled to room temperature, then crush, obtain ceramic powder.
D. glue in step c is taken, after being cooled to room temperature, 125 parts of liquid nitrogen is added, impregnates 14 minutes, then take out, be crushed to
Partial size is 7 mesh, obtains filler；
E. take the filler being prepared in step d to be placed in bio-trickling filter and form packed bed, the packed bed with a thickness of
14cm；
Wherein, packed bed is 3 layers, between the packed bed between be divided into 40cm.
F. it is passed through carbon dioxide into bio-trickling filter and drains air, obtain anaerobic environment, be then inoculated on packed bed
Nutritive mud after being kept for anaerobic environment closed 40 hours, is discharged nutritive mud, completes inoculation；The nutritive mud includes following parts by weight
The raw material of ratio: 125 parts of marsh gas water, 37 parts of hydrotalcite powder, 36 parts of bean dregs, 2.5 parts of clostridium pasteurianum；
Wherein, nutritive mud the preparation method comprises the following steps: by weight, be added in fermentor after taking bean dregs to crush, be then added
The marsh gas water of hydrotalcite powder and 1/3 weight, stirs evenly, and aerated fermentation 27 days, are subsequently added into clostridium pasteurianum at 43 DEG C
With remaining marsh gas water, sealed fermenting 22 days, obtain nutritive mud at 33 DEG C；The aeration quantity of the aerated fermentation is 120L/min.
G. the anaerobic environment for keeping bio-trickling filter, then sprays nutrient solution, the nutrition on packed bed after inoculation
The sprinkling volume of liquid is that every 100g filler sprays 112ml, primary every sprinkling in 4 hours, after sprinkling 8 days, completes biofilm, often later
Continuous sprinkling nutrient solution 8 days every 45 days.
Wherein, nutrient solution includes the raw material of following weight part ratio: 53.5 parts of marsh gas water, 30 parts of hydrotalcite powder, 4 parts of glycerol,
0.5 part of chitosan, 0.5 part of trehalose.
Embodiment 4
A kind of preparation method of use in waste water treatment biomembrane, comprising the following steps:
A. by weight, 34 parts and 8.5 parts of formic acid solution of polylactic acid are taken, is added in reaction kettle, stirs evenly, then
92 DEG C are heated to, adds 23 parts of soybean protein isolate, is stirred to react 180 minutes；
Wherein, the mass fraction of formic acid solution is 68%.
B. 67 DEG C are cooled to, 8.5 parts and 0.6 part of manganese acetate of polyvinyl alcohol is added, then passes to nitrogen, be then warming up to
114 DEG C are reacted 83 minutes, then are cooled to 77 DEG C；
C. 77 DEG C are maintained the temperature at, is added 22 parts of ceramic powder, is stirred 24 minutes, then plastic emitting obtains glue；
Wherein, ceramic powder includes the raw material of following weight part ratio: 67 parts of kaolinite, 18 parts of ethyl alcohol, dodecyl sodium sulfate
3.5 parts, 1.3 parts of nitric acid ammonia, 0.8 part of potassium dihydrogen phosphate.
Ceramic powder the preparation method comprises the following steps: by weight, kaolinite is taken to be ground into powder, then powder is divided into third
Part, take first part of powder to be added ethyl alcohol and dodecyl sodium sulfate, grinding uniformly, be then added nitric acid ammonia, potassium dihydrogen phosphate and
Second part of powder, then grind uniformly, it is subsequently added into third part powder, continues grinding uniformly, volatilizes ethyl alcohol later to no alcohol taste, connect
Toasted 5.5 hours at 370 DEG C, be finally cooled to room temperature, then crush, obtain ceramic powder.
D. glue in step c is taken, after being cooled to room temperature, 135 parts of liquid nitrogen is added, impregnates 18 minutes, then take out, be crushed to
Partial size is 13 mesh, obtains filler；
E. take the filler being prepared in step d to be placed in bio-trickling filter and form packed bed, the packed bed with a thickness of
19cm；
Wherein, packed bed is 4 layers, between the packed bed between be divided into 50cm.
F. it is passed through carbon dioxide into bio-trickling filter and drains air, obtain anaerobic environment, be then inoculated on packed bed
Nutritive mud after being kept for anaerobic environment closed 45 hours, is discharged nutritive mud, completes inoculation；The nutritive mud includes following parts by weight
The raw material of ratio: 135 parts of marsh gas water, 47 parts of hydrotalcite powder, 45 parts of bean dregs, 5 parts of clostridium pasteurianum；
Wherein, nutritive mud the preparation method comprises the following steps: by weight, be added in fermentor after taking bean dregs to crush, be then added
The marsh gas water of hydrotalcite powder and 1/4 weight, stirs evenly, and aerated fermentation 32 days, are subsequently added into clostridium pasteurianum at 51 DEG C
With remaining marsh gas water, sealed fermenting 27 days, obtain nutritive mud at 37 DEG C；The aeration quantity of the aerated fermentation is 140L/min.
G. the anaerobic environment for keeping bio-trickling filter, then sprays nutrient solution, the nutrition on packed bed after inoculation
The sprinkling volume of liquid is that every 100g filler sprays 130ml, primary every sprinkling in 7 hours, after sprinkling 12 days, completes biofilm, later
Continuous sprinkling nutrient solution 12 days every 55 days.
Wherein, nutrient solution includes the raw material of following weight part ratio: 58 parts of marsh gas water, 40 parts of hydrotalcite powder, 8 parts of glycerol, shell
1 part of glycan, 0.8 part of trehalose.
Embodiment 5
A kind of preparation method of use in waste water treatment biomembrane, comprising the following steps:
A. by weight, take 29 parts of polylactic acid and 7 parts of formic acid solution, be added in reaction kettle, stir evenly, then plus
Heat adds 19 parts of soybean protein isolate to 90 DEG C, is stirred to react 170 minutes；
Wherein, the mass fraction of formic acid solution is 55%.
B. 61 DEG C are cooled to, 7 parts and 0.5 part of manganese acetate of polyvinyl alcohol is added, then passes to nitrogen, be then warming up to 108
DEG C reaction 77 minutes, then it is cooled to 71 DEG C；
C. 71 DEG C are maintained the temperature at, is added 19 parts of ceramic powder, is stirred 20 minutes, then plastic emitting obtains glue；
Wherein, ceramic powder includes the raw material of following weight part ratio: 62 parts of kaolinite, 15.5 parts of ethyl alcohol, dodecyl sodium sulfonate
3 parts of sodium, 0.9 part of nitric acid ammonia, 0.6 part of potassium dihydrogen phosphate.
Ceramic powder the preparation method comprises the following steps: by weight, kaolinite is taken to be ground into powder, then powder is divided into third
Part, take first part of powder to be added ethyl alcohol and dodecyl sodium sulfate, grinding uniformly, be then added nitric acid ammonia, potassium dihydrogen phosphate and
Second part of powder, then grind uniformly, it is subsequently added into third part powder, continues grinding uniformly, volatilizes ethyl alcohol later to no alcohol taste, connect
Toasted 4.5 hours at 350 DEG C, be finally cooled to room temperature, then crush, obtain ceramic powder.
D. glue in step c is taken, after being cooled to room temperature, 130 parts of liquid nitrogen is added, impregnates 16 minutes, then take out, be crushed to
Partial size is 10 mesh, obtains filler；
E. take the filler being prepared in step d to be placed in bio-trickling filter and form packed bed, the packed bed with a thickness of
16cm；
Wherein, packed bed is 4 layers, between the packed bed between be divided into 45cm.
F. it is passed through carbon dioxide into bio-trickling filter and drains air, obtain anaerobic environment, be then inoculated on packed bed
Nutritive mud after being kept for anaerobic environment closed 43 hours, is discharged nutritive mud, completes inoculation；The nutritive mud includes following parts by weight
The raw material of ratio: 130 parts of marsh gas water, 42 parts of hydrotalcite powder, 40 parts of bean dregs, 3.5 parts of clostridium pasteurianum；
Wherein, nutritive mud the preparation method comprises the following steps: by weight, be added in fermentor after taking bean dregs to crush, be then added
The marsh gas water of hydrotalcite powder and 1/4 weight, stirs evenly, and aerated fermentation 30 days, are subsequently added into clostridium pasteurianum at 47 DEG C
With remaining marsh gas water, sealed fermenting 25 days, obtain nutritive mud at 35 DEG C；The aeration quantity of the aerated fermentation is 130L/min.
G. the anaerobic environment for keeping bio-trickling filter, then sprays nutrient solution, the nutrition on packed bed after inoculation
The sprinkling volume of liquid is that every 100g filler sprays 121ml, primary every sprinkling in 5.5 hours, after sprinkling 10 days, completes biofilm, it
Continuous sprinkling nutrient solution 10 days every 50 days afterwards.
Wherein, nutrient solution includes the raw material of following weight part ratio: 56 parts of marsh gas water, 35 parts of hydrotalcite powder, 6 parts of glycerol, shell
0.7 part of glycan, 0.6 part of trehalose.
Embodiment 6
According to the preparation method in embodiment 5, difference is to be added without manganese acetate in step b, remaining step is identical.
Embodiment 7
According to the preparation method in embodiment 5, difference is to be added without ceramic powder in step c, remaining step is identical.
Embodiment 8
According to the preparation method in embodiment 5, difference is to be added without ammonium nitrate and phosphoric acid when preparing ceramic powder in step c
Potassium dihydrogen, remaining step are identical.
Embodiment 9
According to the preparation method in embodiment 5, without baking, remaining step when difference is to prepare ceramic powder in step c
It is rapid identical.
Embodiment 10
According to the preparation method in embodiment 5, difference is to be added without hydrotalcite powder when preparing nutritive mud in step f,
Remaining step is identical.
Embodiment 11
According to the preparation method in embodiment 5, difference is to be added without Pasteur's fixed nitrogen shuttle when preparing nutritive mud in step f
Bacterium, remaining step are identical.
Embodiment 12
According to the preparation method in embodiment 5, difference is in step f to replace nutritive mud using conventional activated sludge,
Remaining step is identical.
Embodiment 13
According to the preparation method in embodiment 5, difference is to be added without glycerol when preparing nutrient solution in step g, remaining
Step is identical.
Embodiment 14
According to the preparation method in embodiment 5, difference is to be added without chitosan when preparing nutrient solution in step g,
Remaining step is identical.
The comparison of 15 implementation result of embodiment
1. preparing laboratory sample
Different biomembranes is prepared by embodiment 1,3, the method for 5-14, then each leads into containing Isosorbide-5-Nitrae-dioxy six
The industrial wastewater progress purified treatment of ring, dioxin, obtains laboratory sample 1,3,5-14.
2. evaluation method
COD value in the industrial wastewater of front and back, which is purified, by measurement calculates organic removal rate, and reference standard ISO 18635-
Isosorbide-5-Nitrae-dioxane removal rate in method measurement industrial wastewater, measures work using method in standard HJ 916-2017 in 2016
Dioxin removal rate in industry waste water.
3. evaluation result
In industrial wastewater COD be 18000mg/L, 1,4- dioxane content be 7500mg/L, dioxins concentration is
350pgTEQ/L
Pollutant removal result in 1 Biofilm Colonization situation of table and industrial wastewater
4. experimental result
It is obtained from table 1, the evaluation result of laboratory sample 3 and 5 is best, followed by laboratory sample 1.
Laboratory sample 1 is not passed through nitrogen when manganese acetate is catalyzed and reacts, and leads to the reduction of manganese acetate catalytic activity, makes biology
The film fixation time extends, and biofilm thickness reduces, and pollutants removal rate reduces.
Laboratory sample 6 is not added manganese acetate when preparing and is catalyzed, and the figure molecular structure of filler is caused to be not sufficiently stable,
Extend the biomembrane fixed time, biofilm thickness reduces, and pollutants removal rate significantly reduces.
Ceramic powder is not added when preparing in laboratory sample 7, causes filler surface roughness to lower, specific surface area reduction, makes
The biomembrane fixation time extends, and biofilm thickness reduces, and pollutants removal rate significantly reduces.
Laboratory sample 8 is added without ammonium nitrate and potassium dihydrogen phosphate when preparing ceramic powder, filler surface roughness is caused to lower,
Specific surface area reduces, and extends the biomembrane fixed time, biofilm thickness reduces, and pollutants removal rate reduces.
Without baking when laboratory sample 9 prepares ceramic powder, filler surface roughness lowers, specific surface area reduces, and makes to give birth to
The object film fixed time extends, and biofilm thickness reduces, and pollutants removal rate reduces.
Laboratory sample 10 is added without hydrotalcite powder when preparing nutritive mud, causes nutritive mud fermentation insufficient, microorganism growth
When subalimentation, extend the biomembrane fixed time, biofilm thickness reduces, and pollutants removal rate reduces.
Laboratory sample 11 is added without clostridium pasteurianum when preparing nutritive mud, leads to microorganism slow growth, subalimentation,
Extend the biomembrane fixed time, biofilm thickness reduces, and pollutants removal rate reduces.
Laboratory sample 12 replaces nutritive mud, subalimentation when microorganism being caused to grow, and activity using conventional activated sludge
Poor compatibility between sludge and filler extends the biomembrane fixed time, and biofilm thickness reduces, and pollutants removal rate reduces.
Laboratory sample 13 is added without glycerol when preparing nutrient solution, causes nutrient solution poor in biofilm surface penetrating power, raw
It is weak could not to obtain enough nutrition, vitality for microorganism growth in object film, makes the reduction of Biofilm contamination object removal rate.
Laboratory sample 14 is added without chitosan when preparing nutrient solution, causes microbial life power in biomembrane to weaken, makes to give birth to
Object membrane contaminant removal rate reduces.
Above description is the detailed description for the present invention preferably possible embodiments, but embodiment is not limited to this hair
Bright patent claim, it is all the present invention suggested by technical spirit under completed same changes or modifications change, should all belong to
In the covered the scope of the patents of the present invention.
Claims (9)
1. a kind of preparation method of use in waste water treatment biomembrane, which comprises the following steps:
A. by weight, 20-38 parts and formic acid solution 4-10 parts of polylactic acid are taken, is added in reaction kettle, stirs evenly, then
It is heated to 87-94 DEG C, adds 10-28 parts of soybean protein isolate, is stirred to react 150-190 minutes；
B. it is cooled to 50-72 DEG C, is added polyvinyl alcohol 4-10 parts and manganese acetate 0.2-0.8 parts, then heats to 96-120 DEG C instead
It answers 64-90 minutes, is then cooled to 60-82 DEG C；
C. 60-82 DEG C is maintained the temperature at, is added ceramic powder 14-24 parts, is stirred 12-28 minutes, then plastic emitting obtains glue；
D. glue in step c is taken, after being cooled to room temperature, liquid nitrogen 120-140 parts is added, impregnates 12-20 minutes, then take out, powder
Being broken to partial size is 5-16 mesh, obtains filler；
E. it takes the filler being prepared in step d to be placed in bio-trickling filter and forms packed bed, the packed bed is with a thickness of 11-
21cm；
F. it is passed through carbon dioxide into bio-trickling filter and drains air, obtain anaerobic environment, nutrition is then inoculated on packed bed
Nutritive mud is discharged after keeping anaerobic environment 38-48 hours closed in mud, completes inoculation；The nutritive mud includes following weight part ratio
Raw material: 120-140 parts of marsh gas water, 32-52 parts of hydrotalcite powder, 31-49 parts of bean dregs, 1-6 parts of clostridium pasteurianum；
G. the anaerobic environment for keeping bio-trickling filter, then sprays nutrient solution on packed bed after inoculation, the nutrient solution
Spraying volume is that every 100g filler sprays 102-140ml, primary every sprinkling in 3-8 hours, after sprinkling 5-14 days, completes biofilm,
Continuous sprinkling nutrient solution 6-14 days every 40-60 days later.
2. a kind of preparation method of use in waste water treatment biomembrane according to claim 1, which is characterized in that institute in step c
State the raw material that ceramic powder includes following weight part ratio: 52-72 parts of kaolinite, 11-20 parts of ethyl alcohol, 2-4 parts of dodecyl sodium sulfate,
0.2-1.6 parts of nitric acid ammonia, 0.2-1.1 parts of potassium dihydrogen phosphate.
3. a kind of preparation method of use in waste water treatment biomembrane according to claim 2, which is characterized in that the ceramic powder
The preparation method comprises the following steps: by weight, take kaolinite to be ground into powder, powder be then divided into three equal parts, take first part of powder
Ethyl alcohol and dodecyl sodium sulfate is added, uniformly, nitric acid ammonia, potassium dihydrogen phosphate and second part of powder is then added, then grind in grinding
Mill uniformly, is subsequently added into third part powder, continues grinding uniformly, volatilizes ethyl alcohol later to no alcohol taste, then at 310-390 DEG C
Baking 2-7 hours, is finally cooled to room temperature, then crush, obtains ceramic powder.
4. a kind of preparation method of use in waste water treatment biomembrane according to claim 1, which is characterized in that institute in step f
State nutritive mud after taking bean dregs to crush the preparation method comprises the following steps: by weight, being added in fermentor, hydrotalcite powder and 1/ being then added
The marsh gas water of weight, stirs evenly, aerated fermentation 25-35 days at 40-55 DEG C, be subsequently added into clostridium pasteurianum and
Remaining marsh gas water, sealed fermenting 20-30 days, obtains nutritive mud at 30-40 DEG C；The aeration quantity of the aerated fermentation is 110-
150L/min。
5. a kind of preparation method of use in waste water treatment biomembrane according to claim 1, which is characterized in that institute in step g
State the raw material that nutrient solution includes following weight part ratio: 51-61 parts of marsh gas water, 25-45 parts of hydrotalcite powder, 2-10 parts of glycerol, shell are poly-
It is 0.2-1.2 parts sugared, 0.2-1 parts of trehalose.
6. a kind of preparation method of use in waste water treatment biomembrane according to claim 1, which is characterized in that in step b
After polyvinyl alcohol and manganese acetate is added, first it is passed through nitrogen and heats up again.
7. a kind of preparation method of use in waste water treatment biomembrane according to claim 1, which is characterized in that institute in step e
Stating packed bed is 2-5 layers, between the packed bed between be divided into 35-55cm.
8. a kind of preparation method of use in waste water treatment biomembrane according to claim 1, which is characterized in that institute in step a
The mass fraction for stating formic acid solution is 30%-80%.
9. a kind of use in waste water treatment biomembrane obtained by any one of claim 1-8 preparation method.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0175568B1 (en) * | 1984-09-17 | 1992-03-18 | Waseda University | Three phase fluidized bed bioreactor process |
| CN105819565A (en) * | 2016-06-02 | 2016-08-03 | 中国科学院重庆绿色智能技术研究院 | Composite biofilm carrier for sewage treatment and preparation method thereof |
| CN106365294A (en) * | 2016-08-25 | 2017-02-01 | 李勇锋 | Microorganism carrier and preparation method of same |
| CN106587356A (en) * | 2016-12-05 | 2017-04-26 | 新奥科技发展有限公司 | Preparation method for biological membrane |
| CN108483679A (en) * | 2018-06-05 | 2018-09-04 | 佛山皖阳生物科技有限公司 | A kind of preparation method of high-performance bio filming filter material |
-
2019
- 2019-05-05 CN CN201910368410.4A patent/CN110104770A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0175568B1 (en) * | 1984-09-17 | 1992-03-18 | Waseda University | Three phase fluidized bed bioreactor process |
| CN105819565A (en) * | 2016-06-02 | 2016-08-03 | 中国科学院重庆绿色智能技术研究院 | Composite biofilm carrier for sewage treatment and preparation method thereof |
| CN106365294A (en) * | 2016-08-25 | 2017-02-01 | 李勇锋 | Microorganism carrier and preparation method of same |
| CN106587356A (en) * | 2016-12-05 | 2017-04-26 | 新奥科技发展有限公司 | Preparation method for biological membrane |
| CN108483679A (en) * | 2018-06-05 | 2018-09-04 | 佛山皖阳生物科技有限公司 | A kind of preparation method of high-performance bio filming filter material |
Non-Patent Citations (6)
| Title |
|---|
| 丛艳君 等: "《活性蛋白质和肽的制备及在功能食品中的应用》", 30 April 2011 * |
| 吴振球 等: "《高分子化合物的毒性和防护 增订版》", 31 January 1974 * |
| 李灿鹏 等: "《蛋品科学与技术》", 30 April 2013 * |
| 沈富林: "《改革开放40年***业发展与进步 猪场废弃物处理和资源化利用》", 30 October 2018 * |
| 赖普辉 等: "《有机化学选论》", 30 October 2000 * |
| 金志刚 等: "《污染物生物降解》", 30 November 1997 * |
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