CN110180381A - A kind of bio-trickling filter filler and preparation method thereof - Google Patents
A kind of bio-trickling filter filler and preparation method thereof Download PDFInfo
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- CN110180381A CN110180381A CN201910369049.7A CN201910369049A CN110180381A CN 110180381 A CN110180381 A CN 110180381A CN 201910369049 A CN201910369049 A CN 201910369049A CN 110180381 A CN110180381 A CN 110180381A
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
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- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
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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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- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Abstract
The present invention provides a kind of bio-trickling filter filler and preparation method thereof, and in particular to exhaust gas technical field of waste water purification.The present invention includes following raw material: 100-150 parts of liquid nitrogen, 20-40 parts of polylactic acid, 10-30 parts of soybean protein isolate, 15-25 parts of ceramic powder, 11-21 parts of oleander extract, 7-17 parts of lythrum salucaria, 3-10 parts of formic acid solution, 3-9 parts of polyvinyl alcohol and 0.1-1 parts of manganese acetate.Bio-trickling filter filler prepared by the present invention can be realized rapid biofilm and improve the treatment effeciency of Recalcitrant chemicals, foreshorten to the fixed time highest of biomembrane 5 hours, organic removal rate is up to 90% or more in industrial waste gas and waste water, 1,4- dioxane removal rate is up to 80% or more, and dioxin removal rate is up to 80% or more.Another object of the present invention is to provide the preparation method of the bio-trickling filter filler, this method is stably and controllable, is easily achieved, and is suitable for large-scale production.
Description
[technical field]
The present invention relates to exhaust gas technical field of waste water purification, and in particular to a kind of bio-trickling filter filler and its preparation side
Method.
[background technique]
Currently, including absorption and sorption, catalysis, burning, condensation and biological treatment skill to the processing technique of industrial waste gas waste water
Art etc..Wherein biologic treating technique includes biofiltration, bio-trickling and zinc cation technology etc., has high treating effect, nothing
Secondary pollution, investment and operating cost are low, the advantages that being easily managed, thus are 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 forms biomembrane on filler, and pollutant is at the top of trickling filter or bottom enters filler, in the process by filler
In, effect of mass transmitting enters biomembrane to pollutant through a variety of ways, and by the microbial degradation in biomembrane, final product is dioxy
Change carbon and thus water, pollutant also become harmless object and be discharged from trickling filter.Therefore, filler is both that the support of microorganism growth carries
Body, and be mass transfer media, performance directly affects the removal effect of pollutant.Often containing a large amount of organic in industrial waste gas waste water
Pollutant needs just be discharged into atmosphere and sewer by purified treatment, and wherein Isosorbide-5-Nitrae-dioxane, dioxin etc. are difficult to degrade
Organic matter is the difficult point of processing, if degradation not exclusively can cause significant damage to animals and plants and environment.Correlative study shows industry
The removal efficiency of exhaust gas Pollutants in Wastewater is directly related with the type of filler, partial size, porosity and specific surface area in trickling filter.
Currently, studying the bio-trickling filter filler mainly used both at home and abroad has sponge, corallite, haydite, sky plastics, zeolite, coal
Ash, active carbon, quartz sand, clinker, coke etc., also have using high molecular polymer as filler, as polypropylene, polyolefins,
The materials such as polyamide, polyvinyl chloride.Although the improvement of these fillers makes pollutant process efficiency be improved, but still exist
Microorganism and filler poor compatibility, biomembrane fixed time is long, the problem low to Recalcitrant chemicals handling rate.
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 high efficiency packing for closing microorganism growth is very necessary.
[summary of the invention]
Goal of the invention of the invention is, for industrial waste gas waste water processing there are microorganism and filler poor compatibility,
The biomembrane fixation time is long, the problem low to Recalcitrant chemicals handling rate, provides a kind of bio-trickling filter filler and its preparation
Method realizes rapid biofilm and improves the treatment effeciency of Recalcitrant chemicals, so that the fixed time highest of biomembrane is foreshortened to 5 small
When, organic removal rate is up to 90% or more in industrial waste gas and waste water, and Isosorbide-5-Nitrae-dioxane removal rate is up to 80% or more, dioxin
Removal rate is up to 80% or more.Another object of the present invention is to provide the preparation method of the bio-trickling filter filler, this method
It is stably and controllable, be easily achieved, be suitable for large-scale production.
To achieve the goals above, The technical solution adopted by the invention is as follows:
A kind of bio-trickling filter filler, the raw material including following weight part ratio: 100-150 parts of liquid nitrogen, polylactic acid 20-40
Part, 10-30 parts of soybean protein isolate, 15-25 parts of ceramic powder, 11-21 parts of oleander extract, 7-17 parts of lythrum salucaria,
3-10 parts of formic acid solution, 3-9 parts of polyvinyl alcohol and 0.1-1 parts of manganese acetate.
Optimization, the oleander extract the preparation method comprises the following steps: by weight, take 16-28 part of sweetscented oleander leaf, addition
Mass fraction is 160-250 parts of ethanol water of 70%-90%, is heated to reflux 60-90 minutes at 80-90 DEG C, then plus
Entering 8-16 parts of active carbon, continuation is heated 20-30 minutes at 80-90 DEG C, is then filtered, and oleander filtrate is collected, is then concentrated,
The 1/8-1/5 for making volume condensate precursor product after being concentrated, adds 3-9 parts of Tea Saponin, stirs under the revolving speed of 500-800 turns/min
It mixes 5-15 minutes, obtains oleander extract.
Advanced optimize, the lythrum salucaria the preparation method comprises the following steps: by weight, taking Lythrum salicaria herb 10-
20 parts, add 50-80 parts of water, be then ultrasonically treated at 45-65 DEG C 47-65 minutes, then take out filtering, collects Lythrum salicaria filter
Liquid, then Lythrum salicaria filtrate is concentrated, make the 1/6-1/4 of volume condensate precursor product after concentration, obtains lythrum salucaria.
Further optimize, the ceramic powder includes the raw material of following weight part ratio: 50-70 parts of kaolinite, ethyl alcohol 10-
20 parts, 2-3 parts of dodecyl sodium sulfate, 0.3-1.5 parts of nitric acid ammonia, 0.1-1 parts of potassium dihydrogen phosphate.
Further optimize again, the ceramic powder the preparation method comprises the following steps: by weight, kaolinite is taken to be crushed into powder
Then powder is divided into three equal parts by end, first part of powder is taken to be added ethyl alcohol and dodecyl sodium sulfate, grinding uniformly, then plus
Enter nitric acid ammonia, potassium dihydrogen phosphate and second part of powder, then grind uniformly, be subsequently added into third part powder, continues grinding uniformly, it
After volatilize ethyl alcohol to no alcohol taste, then toasted 2-8 hours at 300-400 DEG C, crush to obtain ceramic powder after being finally cooled to room temperature.
Further optimize again, the partial size of the ceramic powder is 30-50 mesh.
The preparation method of above-mentioned bio-trickling filter filler, comprising the following steps:
A. by weight, polylactic acid and formic acid solution are taken, is added in reaction kettle, is stirred evenly, 85- is then heated to
95 DEG C, soybean protein isolate is added, is stirred to react 150-200 minutes；
B. it is cooled to 50-70 DEG C, polyvinyl alcohol and manganese acetate is added, then heats to 100-120 DEG C of reaction 60-90 points
Then clock is cooled to 60-80 DEG C；
C. 60-80 DEG C is maintained the temperature at, ceramic powder, oleander extract and lythrum salucaria is added, stirring 10-30 divides
Clock, then plastic emitting obtains glue；
D. glue in step c is taken, after being cooled to room temperature, liquid nitrogen is added, impregnates 10-20 minutes, then takes out, be crushed to grain
Diameter is 4-18 mesh, obtains bio-trickling filter filler.
Optimization, in step b after polyvinyl alcohol and manganese acetate is added, first it is passed through nitrogen and heats up again.
It advanced optimizes, the mass fraction of formic acid solution described in step a is 20%-80%.
In conclusion by adopting the above-described technical solution, the beneficial effects of the present invention are:
1. the present invention is using polylactic acid and soybean protein isolate through Catalyzed by Formic Acid, polyvinyl alcohol solidification, polymerization is obtained
Bio-trickling filter filler joined manganese acetate, ceramic powder, oleander extract and lythrum salucaria, energy during the preparation process
So that filler is obtained stable mechanical performance, and there is sufficiently large specific surface area and roughness, contributes to form adsorptivity net
Shape structure makes microorganism be conducive to attachment, to improve the compatibility between microorganism and filler, realize rapid biofilm and improve difficult drop
The treatment effeciency for solving pollutant foreshortens to the fixed time highest of biomembrane 5 hours, organic matter removal in industrial waste gas and waste water
Rate is up to 90% or more, and Isosorbide-5-Nitrae-dioxane removal rate is up to 80% or more, and dioxin removal rate is up to 80% or more.Of the invention is another
It is designed to provide the preparation method of the bio-trickling filter filler, this method is stably and controllable, is easily achieved, and is suitable for scale metaplasia
It produces.
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 net structure and fine and close hole, there is capillary attraction effect, can effectively adsorb microorganism, be conducive to microorganism
Thick and solid biomembrane is formed on filler, is shortened the biomembrane fixed time, is improved the working efficiency of removal pollutant, especially mention
The removal rate of high Recalcitrant chemicals.Of both formic acid in the present invention plays the role of, first is that being used for soybean protein isolate
It is hydrolyzed into small molecule peptide chain, is in addition also used to promote small molecule peptide chain and polylactic acid that polymerization reaction occurs, it is small under Catalyzed by Formic Acid
Positively charged group is formed on molecule peptide chain, the carbonyl in attack polylactic acid is condensed, and forms branched linear macromolecule
Condensation polymer.The addition of polyvinyl alcohol can be such that the branch of linear macromolecule condensation polymer further solidifies to be cross-linked to form body in the present invention
Type macromolecule cross-linked network object.
It is more firm that the three-dimensional polymeric molecule cross-linked network object structure that manganese acetate forms curing reaction is additionally added in the present invention,
And it is passed through the catalytic activity that nitrogen maintains manganese acetate, to promote the chemical bond quantity to form crosslinking.Manganese acetate can also be micro- life
Object growth provides required manganese element, can the intracorporal various enzymes of activating microorganisms, play the role of promoting microorganism growth, it is right
The biofilm of filler generates positive influence, further shortens the biomembrane fixed time, improves the working efficiency of removal pollutant.
3. the ceramic powder rough surface, large specific surface area, the stabilized structure that are added in the present invention, and control the partial size of ceramic powder
Between 30-50 mesh, it is capable of increasing the compatibility of filler and microorganism, shortens the biomembrane fixed time, improve biofilm speed, from
And the working efficiency of removal pollutant is improved, especially improve the removal rate of Recalcitrant chemicals.Ceramic powder is in suitable grain
Diameter range, the high molecular crosslink object that could be obtained with polymerization reaction mix well, the filler made energy after microorganism adheres to
The uniform biomembrane of thickness is enough formed, the working efficiency of removal pollutant is promoted, especially improves the removal of Recalcitrant chemicals
Rate.
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 300-400 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, generates to the biofilm speed and pollutant removal that promote filler positive
Effect.
Stronger adsorptivity reticular structure is formed 4. oleander extract is added in the present invention and can aid in filler, benefit
In absorption microorganism attachment, shortens the biomembrane fixed time, improve the working efficiency of removal pollutant, especially improve difficult to degrade
The removal rate of pollutant.Contain a variety of flavones and the saponin components such as rutin, oleandrin in the ethanol extract kind of oleander,
After Tea Saponin is added, high foaming substance can be formed, then be stirred using high revolving speed, persistent glue can be formed
Foam plays a supportive role to filling-material structure, facilitates the formation of filler reticular structure.
5. lythrum salucaria is added in the present invention, the growth of the microorganism adhered on filler can be promoted, and promote life
The contaminant removal capacity of object film.Lythrum salicaria is the protection of biomembrane and enzyme wherein containing proline using water ultrasonic extraction
Matter, while also containing Flavonoid substances, can in reinforcing filler microorganism vitality, to promote the ability for the object that depollutes.
6. the partial size of rationally control filler of the invention can shorten the biomembrane fixed time of microorganism, mention in 4-18 mesh
Rise biofilm speed.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
The advantages of harmful substance.
[specific embodiment]
Below with reference to embodiment, the invention will be further described.
Embodiment 1
A kind of bio-trickling filter filler, the raw material including following weight part ratio: 100 parts of liquid nitrogen, 20 parts of polylactic acid, soybean point
From protein 10 part, 15 parts of ceramic powder, 11 parts of oleander extract, 7 parts of lythrum salucaria, 3 parts of formic acid solution, polyvinyl alcohol 3
Part and 0.1 part of manganese acetate.
Wherein, oleander extract the preparation method comprises the following steps: by weight, take 16 parts of sweetscented oleander leaf, mass fraction be added
For 160 parts of ethanol water of 70%, it is heated to reflux at 80 DEG C 60 minutes, is then added 8 parts of active carbon, continued at 80 DEG C
Heating 20 minutes, is then filtered, and is collected oleander filtrate, is then concentrated, and 1/8 of volume condensate precursor product after being concentrated is made, then
3 parts of Tea Saponin are added, is stirred 5 minutes under the revolving speed of 500 turns/min, obtains oleander extract.
Lythrum salucaria the preparation method comprises the following steps: by weight, take 10 parts of Lythrum salicaria herb, add 50 parts of water, then exist
It is ultrasonically treated at 45 DEG C 47 minutes, then takes out filtering, collect Lythrum salicaria filtrate, then Lythrum salicaria filtrate is concentrated, make body after concentration
Product is the 1/6 of condensate precursor product, obtains lythrum salucaria.
The partial size of ceramic powder is 30 mesh, and the ceramic powder includes the raw material of following weight part ratio: 50 parts of kaolinite, ethyl alcohol 10
Part, 2 parts of dodecyl sodium sulfate, 0.3 part of nitric acid ammonia, 0.1 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 300 DEG C, crush to obtain ceramic powder after being finally cooled to room temperature.
A kind of preparation method of above-mentioned bio-trickling filter filler, comprising the following steps:
A. by weight, polylactic acid and formic acid solution are taken, is added in reaction kettle, is stirred evenly, is then heated to 85
DEG C, soybean protein isolate is added, is stirred to react 150 minutes；
Wherein, the mass fraction of formic acid solution is 20%.
B. 50 DEG C are cooled to, polyvinyl alcohol and manganese acetate is added, 100 DEG C is then heated to and reacts 60 minutes, then cool down
To 60 DEG C；
C. it maintains the temperature at 60 DEG C, ceramic powder, oleander extract and lythrum salucaria is added, stir 10 minutes, so
Plastic emitting obtains glue afterwards；
D. above-mentioned glue is taken, after being cooled to room temperature, liquid nitrogen is added, impregnates 10 minutes, then takes out, being crushed to partial size is 4
Mesh obtains bio-trickling filter filler.
Embodiment 2
A kind of bio-trickling filter filler, the raw material including following weight part ratio: 150 parts of liquid nitrogen, 40 parts of polylactic acid, soybean point
30 parts from albumen, 25 parts of ceramic powder, 21 parts of oleander extract, 17 parts of lythrum salucaria, 10 parts of formic acid solution, polyvinyl alcohol
9 parts and 1 part of manganese acetate.
Wherein, oleander extract the preparation method comprises the following steps: by weight, take 28 parts of sweetscented oleander leaf, mass fraction be added
For 250 parts of ethanol water of 90%, it is heated to reflux at 90 DEG C 90 minutes, is then added 16 parts of active carbon, continued at 90 DEG C
Lower heating 30 minutes, is then filtered, and is collected oleander filtrate, is then concentrated, and 1/5 of volume condensate precursor product after being concentrated is made,
9 parts of Tea Saponin are added, is stirred 15 minutes under the revolving speed of 800 turns/min, obtains oleander extract.
Lythrum salucaria the preparation method comprises the following steps: by weight, take 20 parts of Lythrum salicaria herb, add 80 parts of water, then exist
It is ultrasonically treated at 65 DEG C 65 minutes, then takes out filtering, collect Lythrum salicaria filtrate, then Lythrum salicaria filtrate is concentrated, make body after concentration
Product is the 1/4 of condensate precursor product, obtains lythrum salucaria.
The partial size of ceramic powder is 50 mesh, and the ceramic powder includes the raw material of following weight part ratio: 70 parts of kaolinite, ethyl alcohol 20
Part, 3 parts of dodecyl sodium sulfate, 1.5 parts of nitric acid ammonia, 1 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 8 hours at 400 DEG C, crush to obtain ceramic powder after being finally cooled to room temperature.
A kind of preparation method of above-mentioned bio-trickling filter filler, comprising the following steps:
A. by weight, polylactic acid and formic acid solution are taken, is added in reaction kettle, is stirred evenly, is then heated to 95
DEG C, soybean protein isolate is added, is stirred to react 200 minutes；
Wherein, the mass fraction of formic acid solution is 80%.
B. 70 DEG C are cooled to, polyvinyl alcohol and manganese acetate is added, then passes to nitrogen, is then warming up to 120 DEG C of reactions 90
Minute, then it is cooled to 80 DEG C；
C. it maintains the temperature at 80 DEG C, ceramic powder, oleander extract and lythrum salucaria is added, stir 30 minutes, so
Plastic emitting obtains glue afterwards；
D. above-mentioned glue is taken, after being cooled to room temperature, liquid nitrogen is added, impregnates 20 minutes, then takes out, being crushed to partial size is 18
Mesh obtains bio-trickling filter filler.
Embodiment 3
A kind of bio-trickling filter filler, the raw material including following weight part ratio: 125 parts of liquid nitrogen, 25 parts of polylactic acid, soybean point
From protein 15 part, 18 parts of ceramic powder, 13.5 parts of oleander extract, 9.5 parts of lythrum salucaria, 4 parts of formic acid solution, polyethylene
5 parts and 0.3 part of manganese acetate of alcohol.
Wherein, oleander extract the preparation method comprises the following steps: by weight, take 19 parts of sweetscented oleander leaf, mass fraction be added
For 182 parts of ethanol water of 75%, it is heated to reflux at 83 DEG C 67 minutes, is then added 10 parts of active carbon, continued at 83 DEG C
Lower heating 22 minutes, is then filtered, and is collected oleander filtrate, is then concentrated, and 1/7 of volume condensate precursor product after being concentrated is made,
4.5 parts of Tea Saponin are added, is stirred 8 minutes under the revolving speed of 570 turns/min, obtains oleander extract.
Lythrum salucaria the preparation method comprises the following steps: by weight, take 12 parts of Lythrum salicaria herb, add 57 parts of water, then exist
It is ultrasonically treated at 50 DEG C 51 minutes, then takes out filtering, collect Lythrum salicaria filtrate, then Lythrum salicaria filtrate is concentrated, make body after concentration
Product is the 1/5 of condensate precursor product, obtains lythrum salucaria.
The partial size of ceramic powder is 35 mesh, and the ceramic powder includes the raw material of following weight part ratio: 55 parts of kaolinite, ethyl alcohol 13
Part, 2.3 parts of dodecyl sodium sulfate, 0.6 part of nitric acid ammonia, 0.3 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 3.5 hours at 325 DEG C, crush to obtain ceramic powder after being finally cooled to room temperature.
A kind of preparation method of above-mentioned bio-trickling filter filler, comprising the following steps:
A. by weight, polylactic acid and formic acid solution are taken, is added in reaction kettle, is stirred evenly, is then heated to 87
DEG C, soybean protein isolate is added, is stirred to react 162 minutes；
Wherein, the mass fraction of formic acid solution is 35%.
B. 55 DEG C are cooled to, polyvinyl alcohol and manganese acetate is added, then passes to nitrogen, is then warming up to 105 DEG C of reactions 67
Minute, then it is cooled to 65 DEG C；
C. it maintains the temperature at 65 DEG C, ceramic powder, oleander extract and lythrum salucaria is added, stir 15 minutes, so
Plastic emitting obtains glue afterwards；
D. above-mentioned glue is taken, after being cooled to room temperature, liquid nitrogen is added, impregnates 12 minutes, then takes out, being crushed to partial size is 7
Mesh obtains bio-trickling filter filler.
Embodiment 4
A kind of bio-trickling filter filler, the raw material including following weight part ratio: 135 parts of liquid nitrogen, 35 parts of polylactic acid, soybean point
From protein 25 part, 22 parts of ceramic powder, 18.5 parts of oleander extract, 14.5 parts of lythrum salucaria, 7 parts of formic acid solution, poly- second
7 parts and 0.7 part of manganese acetate of enol.
Wherein, oleander extract the preparation method comprises the following steps: by weight, take 25 parts of sweetscented oleander leaf, mass fraction be added
For 227 parts of ethanol water of 85%, it is heated to reflux at 87 DEG C 82 minutes, is then added 14 parts of active carbon, continued at 87 DEG C
Lower heating 27 minutes, is then filtered, and is collected oleander filtrate, is then concentrated, and 1/6 of volume condensate precursor product after being concentrated is made,
7.5 parts of Tea Saponin are added, is stirred 13 minutes under the revolving speed of 730 turns/min, obtains oleander extract.
Lythrum salucaria the preparation method comprises the following steps: by weight, take 17 parts of Lythrum salicaria herb, add 73 parts of water, then exist
It is ultrasonically treated at 60 DEG C 60 minutes, then takes out filtering, collect Lythrum salicaria filtrate, then Lythrum salicaria filtrate is concentrated, make body after concentration
Product is the 1/5 of condensate precursor product, obtains lythrum salucaria.
The partial size of ceramic powder is 45 mesh, and the ceramic powder includes the raw material of following weight part ratio: 65 parts of kaolinite, ethyl alcohol 18
Part, 2.7 parts of dodecyl sodium sulfate, 1.2 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 6.5 hours at 375 DEG C, crush to obtain ceramic powder after being finally cooled to room temperature.
A kind of preparation method of above-mentioned bio-trickling filter filler, comprising the following steps:
A. by weight, polylactic acid and formic acid solution are taken, is added in reaction kettle, is stirred evenly, is then heated to 93
DEG C, soybean protein isolate is added, is stirred to react 190 minutes；
Wherein, the mass fraction of formic acid solution is 65%.
B. 65 DEG C are cooled to, polyvinyl alcohol and manganese acetate is added, then passes to nitrogen, is then warming up to 115 DEG C of reactions 82
Minute, then it is cooled to 75 DEG C
C. it maintains the temperature at 75 DEG C, ceramic powder, oleander extract and lythrum salucaria is added, stir 25 minutes, so
Plastic emitting obtains glue afterwards；
D. above-mentioned glue is taken, after being cooled to room temperature, liquid nitrogen is added, impregnates 17 minutes, then takes out, being crushed to partial size is 14
Mesh obtains bio-trickling filter filler.
Embodiment 5
A kind of bio-trickling filter filler, the raw material including following weight part ratio: 130 parts of liquid nitrogen, 30 parts of polylactic acid, soybean point
From protein 20 part, 20 parts of ceramic powder, 16 parts of oleander extract, 12 parts of lythrum salucaria, 5.5 parts of formic acid solution, polyethylene
6 parts and 0.4 part of manganese acetate of alcohol.
Wherein, oleander extract the preparation method comprises the following steps: by weight, take 22 parts of sweetscented oleander leaf, mass fraction be added
For 205 parts of ethanol water of 80%, it is heated to reflux at 85 DEG C 75 minutes, is then added 12 parts of active carbon, continued at 85 DEG C
Lower heating 25 minutes, is then filtered, and is collected oleander filtrate, is then concentrated, and 1/6 of volume condensate precursor product after being concentrated is made,
6 parts of Tea Saponin are added, is stirred 10 minutes under the revolving speed of 650 turns/min, obtains oleander extract.
Lythrum salucaria the preparation method comprises the following steps: by weight, take 15 parts of Lythrum salicaria herb, add 65 parts of water, then exist
It is ultrasonically treated at 55 DEG C 56 minutes, then takes out filtering, collect Lythrum salicaria filtrate, then Lythrum salicaria filtrate is concentrated, make body after concentration
Product is the 1/5 of condensate precursor product, obtains lythrum salucaria.
The partial size of ceramic powder is 40 mesh, and the ceramic powder includes the raw material of following weight part ratio: 60 parts of kaolinite, ethyl alcohol 15
Part, 2.5 parts of dodecyl sodium sulfate, 0.9 part of nitric acid ammonia, 0.5 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 hours at 350 DEG C, crush to obtain ceramic powder after being finally cooled to room temperature.
A kind of preparation method of above-mentioned bio-trickling filter filler, comprising the following steps:
A. by weight, polylactic acid and formic acid solution are taken, is added in reaction kettle, is stirred evenly, is then heated to 90
DEG C, soybean protein isolate is added, is stirred to react 175 minutes；
Wherein, the mass fraction of formic acid solution is 50%.
B. 60 DEG C are cooled to, polyvinyl alcohol and manganese acetate is added, then passes to nitrogen, is then warming up to 110 DEG C of reactions 75
Minute, then it is cooled to 70 DEG C
C. it maintains the temperature at 70 DEG C, ceramic powder, oleander extract and lythrum salucaria is added, stir 20 minutes, so
Plastic emitting obtains glue afterwards；
D. above-mentioned glue is taken, after being cooled to room temperature, liquid nitrogen is added, impregnates 15 minutes, then takes out, being crushed to partial size is 11
Mesh obtains bio-trickling filter filler.
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 added without ammonium nitrate and potassium dihydrogen phosphate when being to prepare ceramic powder,
Remaining step is identical.
Embodiment 9
According to the preparation method in embodiment 5, without baking when difference is to prepare ceramic powder, remaining step is identical.
Embodiment 10
According to the preparation method in embodiment 5, difference is that oleander extract and Lythrum salicaria are added without in step c to be extracted
Object, remaining step are identical.
The comparison of 11 implementation result of embodiment
1. preparing laboratory sample
Different bio-trickling filter fillers is prepared by embodiment 1,3, the method for 5-10, filler is then packed into biology
In trickling filter, then inoculation of activated-sludge carries out biofilm, then each leads into the Industry Waste containing Isosorbide-5-Nitrae-dioxane, dioxin
Gas and industrial wastewater carry out purified treatment, obtain laboratory sample 1,3,5-10.
2. evaluation method
Measure film thickness in biomembrane fixed time, 10 days；It is industrial before and after the processing using method measurement in standard HJ38-2017
Total hydrocarbon is in exhaust gas to calculate organic removal rate, and method measures Isosorbide-5-Nitrae-two in industrial waste gas in reference standard HJ-T397-2007
Six ring removal rate of oxygen measures dioxin removal rate in industrial waste gas using method in standard HJ 916-2017；It is purified by measurement
COD value calculates organic removal rate in the industrial wastewater of front and back, and method measures Industry Waste in reference standard ISO 18635-2016
Isosorbide-5-Nitrae-dioxane removal rate in water measures dioxin removal rate in industrial wastewater using method in standard HJ 916-2017.
3. evaluation result
Measuring total hydrocarbon content in industrial waste gas is 500mg/m3, 1,4- dioxane content be 33mg/m3, dioxins concentration
For 50mg/m3, COD is 18000mg/L in industrial wastewater, Isosorbide-5-Nitrae-dioxane content is 7500mg/L, dioxins concentration is
165pgTEQ/L。
Pollutant removal result in 1 Biofilm Colonization situation of table and industrial waste gas
Pollutant removal result in 2 Biofilm Colonization situation of table and industrial wastewater
4. experimental result
It is obtained from Tables 1 and 2, 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 is declined slightly.
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 oleander extract and lythrum salucaria when preparing filler, leads to filler reticular structure
It is not sufficiently stable, microbial life power is weak, extends the biomembrane fixed time, biofilm thickness reduces, and pollutants 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 bio-trickling filter filler, which is characterized in that the raw material including following weight part ratio: 100-150 parts of liquid nitrogen, poly- cream
20-40 parts sour, 10-30 parts of soybean protein isolate, 15-25 parts of ceramic powder, 11-21 parts of oleander extract, lythrum salucaria
7-17 parts, 3-10 parts of formic acid solution, 3-9 parts of polyvinyl alcohol and 0.1-1 parts of manganese acetate.
2. a kind of bio-trickling filter filler according to claim 1, which is characterized in that the preparation of the oleander extract
Method are as follows: by weight, take 16-28 parts of sweetscented oleander leaf, the ethanol water 160- that mass fraction is 70%-90% is added
It 250 parts, is heated to reflux at 80-90 DEG C 60-90 minutes, is then added active carbon 8-16 parts, continuation is heated at 80-90 DEG C
It 20-30 minutes, then filters, collects oleander filtrate, be then concentrated, make the 1/8-1/5 of volume condensate precursor product after concentration,
3-9 parts of Tea Saponin are added, is stirred 5-15 minutes under the revolving speed of 500-800 turns/min, obtains oleander extract.
3. a kind of bio-trickling filter filler according to claim 1, which is characterized in that the preparation of the lythrum salucaria
Method are as follows: by weight, take 10-20 parts of Lythrum salicaria herb, add 50-80 parts of water, be then ultrasonically treated 47- at 45-65 DEG C
65 minutes, filtering is then taken out, collects Lythrum salicaria filtrate, then Lythrum salicaria filtrate is concentrated, makes volume condensate precursor product after concentration
1/6-1/4, obtain lythrum salucaria.
4. a kind of bio-trickling filter filler according to claim 1, which is characterized in that the ceramic powder includes following weight
The raw material of part ratio: 50-70 parts of kaolinite, 10-20 parts of ethyl alcohol, 2-3 parts of dodecyl sodium sulfate, 0.3-1.5 parts of nitric acid ammonia, phosphoric acid
0.1-1 parts of potassium dihydrogen.
5. a kind of bio-trickling filter filler according to claim 4, which is characterized in that the preparation method of the ceramic powder
Are as follows: by weight, take kaolinite to be ground into powder, powder be then divided into three equal parts, take first part of powder be added ethyl alcohol and
Dodecyl sodium sulfate, uniformly, nitric acid ammonia, potassium dihydrogen phosphate and second part of powder is then added in grinding, then grinds uniformly, then
Third part powder is added, continues grinding uniformly, volatilizes ethyl alcohol later to no alcohol taste, it is small that 2-8 is then toasted at 300-400 DEG C
When, ceramic powder is crushed to obtain after being finally cooled to room temperature.
6. a kind of bio-trickling filter filler according to claim 1, which is characterized in that the partial size of the ceramic powder is 30-
50 mesh.
7. a kind of preparation method of bio-trickling filter filler described in any one of claims 1-6, which is characterized in that including following
Step:
A. by weight, polylactic acid and formic acid solution are taken, is added in reaction kettle, is stirred evenly, 85-95 is then heated to
DEG C, soybean protein isolate is added, is stirred to react 150-200 minutes；
B. it is cooled to 50-70 DEG C, polyvinyl alcohol and manganese acetate is added, then heats to 100-120 DEG C of reaction 60-90 minutes, so
After be cooled to 60-80 DEG C；
C. 60-80 DEG C is maintained the temperature at, ceramic powder, oleander extract and lythrum salucaria is added, is stirred 10-30 minutes,
Then plastic emitting obtains glue；
D. glue in step c is taken, after being cooled to room temperature, liquid nitrogen is added, impregnates 10-20 minutes, then takes out, being crushed to partial size is
4-18 mesh obtains bio-trickling filter filler.
8. a kind of preparation method of bio-trickling filter filler according to claim 7, which is characterized in that adding in step b
After entering polyvinyl alcohol and manganese acetate, first it is passed through nitrogen and heats up again.
9. a kind of preparation method of bio-trickling filter filler according to claim 7, which is characterized in that described in step a
The mass fraction of formic acid solution is 20%-80%.
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| CN112573657A (en) * | 2020-11-30 | 2021-03-30 | 中天华诺建设有限公司 | Filler for ammonia nitrogen sewage treatment |
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