CN109046291A - The preparation method of resin sorbent based on compound diatomite - Google Patents
The preparation method of resin sorbent based on compound diatomite Download PDFInfo
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- CN109046291A CN109046291A CN201811063076.3A CN201811063076A CN109046291A CN 109046291 A CN109046291 A CN 109046291A CN 201811063076 A CN201811063076 A CN 201811063076A CN 109046291 A CN109046291 A CN 109046291A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
- B01J20/26—Synthetic macromolecular compounds
- B01J20/265—Synthetic macromolecular compounds modified or post-treated polymers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/04—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of alkali metals, alkaline earth metals or magnesium
- B01J20/046—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of alkali metals, alkaline earth metals or magnesium containing halogens, e.g. halides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
- B01J20/14—Diatomaceous earth
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
- B01J20/24—Naturally occurring macromolecular compounds, e.g. humic acids or their derivatives
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28054—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their surface properties or porosity
Abstract
The invention discloses the preparation methods of the resin sorbent based on compound diatomite, use diatomite for first vector, resin is Second support, microbial strains are fixed, the preparation step of resin are as follows: take 5-20 parts by weight diatomite immobilized microorganism, 0.1-0.5 parts by weight coupling agent, 1-3 parts by weight butylated hydroxy anisole and 1-5 parts by weight tetrahydrocannabinol to be added in acrylate copolymer emulsion, the resin sorbent based on compound diatomite is dried in vacuo to obtain after stirring at low speed under room temperature.The utility model has the advantages that adsorbent prepared by the present invention has many advantages, such as that swelling rate is fast, absorbency capacity is big, the microorganism holding time is long, the service life is long.
Description
Technical field
The present invention relates to technical field of sewage, more particularly, to the preparation of the resin sorbent based on compound diatomite
Method.
Technical background
With the development of sociometric technique, the rapid growth of population, demand of the mankind to water resource is being gradually risen.
Instantly, the water resource in China is all becoming scarce resource step by step.But water resource it is rare while, the discharge of sewage causes again
Serious environmental pollution, therefore the processing of sewage is increasingly taken seriously.In numerous pollution sources, water pollution problems is especially
It is prominent, wherein the leakage and discharge of industry oil cause huge pollution to ocean, river, constitute serious prestige to environment
The side of body.
The method of sewage treatment has very much, there is physical method: mainly separating and removes by physical action and is insoluble in waste water
The pollutant in suspended state of solution, such as sieving retention, centrifuge separation；Chemical method: being to separate water by chemically reacting
In in dissolution, the pollutant of colloidal state, such as Coagulation Method, oxidation-reduction method；There is bioanalysis: utilizing the metabolism of microorganism
Decompose water pollutant, including biofilm.
The advantages such as wherein physical adsorption techniques are easy to operate with its, adsorbent is cheap and easy to get, removal effect is excellent are answered extensively
For in the processing of sewage, wherein the active charcoal of widely used adsorbent material, aluminium oxide, zeolite etc., diatomite to be on the earth
The mining deposits of rich content possess preferable adsorptivity, have high researching value in terms of sewage treatment, and diatomite is
The biological silicalite being made of the siliceous remains of diatom and other microorganisms, it has large specific surface area, porosity height, adsorptivity
Can be strong, chemical stability is high the advantages that.When usual sewage treatment, simple diatomite will not be directly used, but is used through acid
Change or pyrolysis activated diatomaceous earth, and use organic matter or mineral-modified diatomite, it is modified, activate or compound silicon
Diatomaceous earth has better wastewater treatment efficiency.
The oil in water body is adsorbed currently, generalling use oil absorption material, what is at most used is high oil-absorbing resin.Height is inhaled
Oleoresin is polymer made of lipophilicity is monomer crosslinked, intermolecular to have three-dimensional crosslinked network shape structure, passes through Intramolecular
The solvation of oil base segment and oil molecule makes resin that swelling action occur.Since swelling can only occur for high oil-absorbing resin without sending out
Raw dissolution, therefore oil molecule will be carried in tridimensional network, realized high oil-absorbing resin oil suction and protected the function of oil.
The prior art such as Authorization Notice No. is the Chinese invention patent of 103641247 B of CN, discloses a kind of sanitary sewage
Inorganic agent and preparation method thereof；Domestic sewage treating compound includes the raw material of following parts by weight: 10-20 parts of ferric trichloride, sulfuric acid are sub-
5-8 parts of iron, 5-8 parts of magnesium sulfate, 3-5 parts of polyacrylamide, 10-20 parts of piece alkali, 20-35 parts of modification sulphonation lignin, starch are yellow
10-15 parts of ortho esters, 20-30 parts of modification infusorial earth, 15-20 parts of cross-linked rectorite, chitosan -1-5 parts of graphene composite material
Domestic sewage treating compound of the invention, is compounded by above-mentioned raw materials, play coordinative role, can not only sustainable concentration for the treatment of it is equal
Higher sanitary sewage, while making that treated sanitary sewage COD, BOD and SS amount is substantially reduced, water quality that treated can be anti-
It recycles again.But the sewage-treating agent of this method preparation is not good enough to the processing of oil body pollutant effluents.
Summary of the invention
The purpose of the present invention is to provide a kind of preparation methods of resin sorbent based on compound diatomite, using diatom
Soil-sodium alginate-calcium chloride is that first vector, using resin as Second support, compensates for the first load to microbial strains immobilization
The poor disadvantage of body mechanicalness；The adsorbent of this method preparation is fast with swelling rate, absorbency capacity is big, the microorganism holding time
Long, the advantages that service life is long.
The present invention in background technique aiming at the problem that mentioning, the technical solution taken are as follows:
The present invention is purchased from Shanghai Bi Laiqing Biotechnology Co., Ltd with strain.
The preparation method of resin sorbent based on compound diatomite uses diatomite for first vector, resin second
Microbial strains are fixed in carrier, and resin is even by acrylate copolymer emulsion and diatomite immobilized microorganism
Connection gained；Coupling relies on coupling agent, butylated hydroxy anisole and tetrahydrocannabinol to complete.
In resin sorbent based on compound diatomite, due to the presence of perforating agent, so that having inside resin a large amount of
Fine cellular structure makes resin have fast absorbing oil ability and biggish oil tankage；And diatomite immobilized microorganism
Particle loading has stronger stability in resin, simultaneously because under the conditions of room temperature stirs at low speed with acrylic ester copolymer
Object lotion is compound, polymeric inner network structure formed condition it is more mild, can farthest ensure microbial cell not by
Damage.
Preferably, the preparation step of resin are as follows: take 5-20 parts by weight diatomite immobilized microorganism, 0.1-0.5 parts of idols
Connection agent, 1-3 parts by weight butylated hydroxy anisole and 1-5 parts by weight tetrahydrocannabinol are added in acrylate copolymer emulsion,
The resin sorbent based on compound diatomite is dried in vacuo to obtain after stirring at low speed under room temperature；Butylated hydroxy anisole and tetrahydro
The special presence of cannabinol, so that resin possesses stronger ageing resistance, especially anti-uv-ray, because for processing
When rivers, especially deepwater oil slick, it will usually which, by prolonged solarization, improving anti-light aging ability helps to extend tree
The physical life of rouge；Be conducive to keep diatomite immobilized microorganism bacterial strain vigor simultaneously, propose the stability of high water-absorbing resin.
Preferably, coupling agent is silane coupling agent.
It before diatomite fixation of microbe, is activated, surface modification processing.
Preferably, diatomite activation step are as follows: after taking diatomite to heat in Muffle furnace take out be cooled to room temperature, then plus
Enter hydrochloric acid solution, after heating and thermal insulation, centrifuge separation after washing, adds oxalic acid solution, and after stirring at room temperature, centrifuge separation is washed
Drying is washed, it is spare；Diatomite after acid solution activation, oxide impurity content reduce, SiO2Content increases, specific surface area and Kong Rong
Increase, absorption property is improved.
Further preferably, diatomite heating temperature in Muffle furnace be 280-320 DEG C, heating time 3-5h；Hydrochloric acid is molten
The volumetric concentration of liquid is 9-13%, and the temperature of heating and thermal insulation is 85-95 DEG C, when heat preservation a length of 2-4h；The volume of oxalic acid solution is dense
Degree is 8-14%, when stirring at room temperature a length of 2-4h, drying temperature is 115-130 DEG C.
Preferably, diatomite surface modification step are as follows: at room temperature, add chitosan into the L- amino being slowly stirred
In aqueous acid, it is slow added into the mixed solution of chlorogenic acid Yu 4- hydroxylphenylethyl alcohol, the diatomite after activation is added, 40-50
DEG C ultrasonic mixing solution 60-100min, centrifugation are dried in vacuo solid solute 20-24h after being washed to neutrality；Modified diatom
One layer of faint yellow viscosity colloidal sol is adhered on native surface, can improve diatomite hydrophobic properties of the surface, improves its attached greasy dirt molecule of parent
Rate increases greasy dirt adsorption capacity.
Further preferably, chitosan and the weight part ratio of l-amino acid are 3:2-5；The volumetric concentration of chlorogenic acid is 1-7%,
The volumetric concentration of 4- hydroxylphenylethyl alcohol is 0.3-0.9%；Chlorogenic acid and 4- hydroxylphenylethyl alcohol have synergistic effect, on the one hand can
Regulate and control diatomite surface sol particles and grow size, it is made to be dispersed in diatomite surface, hinders to occur to gather between sol particles
Collect and blocks diatomite duct；On the other hand cationic charge can be promoted in diatomite surface enrichment, improve diatomite surface
Cationic charge density, it is often more important that carboxyl in amino acid and diatomite surface functional group especially hydroxyl can be promoted anti-
It should and be arranged in diatomite surface and form one layer of self-assembled molecule layer, which forms an additional electric field, can reduce silicon
Immobilized microorganism can be improved to improve diatomite surface duct to the fixation degree of microbe granular in diatomaceous earth surface potential energy
The stability of bacterial strain is effectively reduced it and causes to be lost in sewage disposal process, improves sewage treating efficiency.
Preferably, diatomite fixation of microbe step are as follows: diatomite after taking the activated modification of 10-15 parts by weight with
30-70 parts by weight petroleum hydrocarbon degradation bacteria concentration is 4 × 109-8×109The seed bacterium solution of cell/g mixes, until kieselguhr adsorption
After seed bacterium solution reaches saturation, the tripolite solution of absorption bacterium is obtained；600- is added into the tripolite solution of absorption bacterium
800 weight account polyethylene alcohol and sodium alginate mixed aqueous solution, wherein the concentration of polyvinyl alcohol is 6-10wt%, sodium alginate
Concentration is 2-4wt%, obtains aaerosol solution after mixing at 1-6 DEG C, is then injected into aaerosol solution with syringe dense
Degree is the calcium chloride solution of 2.5-3.5wt%, and diatomite immobilized microorganism is made after 16-28h is crosslinked at a temperature of 2-8 DEG C
Grain；When aaerosol solution is injected into calcium chloride solution, calcium chloride and sodium alginate generate calcium alginate, and polyvinyl alcohol is at low temperature
Microorganism carrier gradually is collectively formed in diatomite cladding in gel, calcium alginate and polyvinyl alcohol.
Preferably, petroleum hydrocarbon degradation bacterium is bacillus brevis.
Compared with the prior art, the advantages of the present invention are as follows:
1) the fine cellular structure inside the resin sorbent prepared by the present invention based on compound diatomite is numerous, has fast
Swelling rate, biggish absorbency capacity and the outstanding Oil keeping of speed；It is internal simultaneously to be compounded with immobilized microorganism, it can be to quilt
It is absorbed into the oil inside resin to be decomposed, immobilized microorganism is right using diatomite-sodium alginate-calcium chloride as first vector
The cured stability of microorganism is good, using resin as Second support, compensates for the poor disadvantage of first vector mechanicalness；And diatomite
Itself also has porous structure, has good adsorptivity, and nutriment can be made to be easier to be improved micro- by microorganism panning
The survival rate and activity of biology, degradation efficiency are high；
2) the present invention is based on the resin sorbents of compound diatomite voluntarily to decompose the oil of absorption, can be inhaled simultaneously
Oil and oil degradation, without being separated and recovered.
Specific embodiment
The present invention program is described further below by embodiment:
Embodiment 1:
The preparation method of resin sorbent based on compound diatomite, comprising the following steps:
(1) diatomite activates: taking diatomite to take out after 280 DEG C of heating 3h in Muffle furnace and is cooled to room temperature, body is then added
The hydrochloric acid solution that product concentration is 9%, after being heated to 85 DEG C and keeping the temperature 2h, centrifuge separation, after washing, adding volumetric concentration is
8% oxalic acid solution after stirring 2h at room temperature, is centrifugated, washing, 115 DEG C of drying, the diatomite after activation is made；Acid solution
Diatomite after activation, oxide impurity content reduce, SiO2Content increases, and specific surface area and Kong Rongjun increase, absorption property
Improved；
(2) diatomite surface modification: at room temperature, adding chitosan into the l-amino acid aqueous solution being slowly stirred,
It is slow added into the mixed solution of chlorogenic acid Yu 4- hydroxylphenylethyl alcohol, the diatomite after activation is added, 40 DEG C of ultrasonic mixing solution
60min, centrifugation are dried in vacuo solid solute 20h after being washed to neutrality；Modified one layer of the attachment of diatomite surface faint yellow glutinous
Stickiness colloidal sol can improve diatomite hydrophobic properties of the surface, improve the rate of its attached greasy dirt molecule of parent, increase greasy dirt adsorption capacity；
Above-mentioned chitosan and the weight part ratio of l-amino acid are 3:2；The volumetric concentration of chlorogenic acid is 1%, 4- hydroxy benzenes second
The volumetric concentration of alcohol is 0.3%；Chlorogenic acid and 4- hydroxylphenylethyl alcohol have synergistic effect, on the one hand can regulate and control diatomite surface
Sol particles grow size, it is made to be dispersed in diatomite surface, hinder that aggregation occurs and blocks diatomite between sol particles
Duct；On the other hand cationic charge can be promoted in diatomite surface enrichment, improve diatomite surface cationic charge density,
Carboxyl and diatomite the surface functional group especially hydroxyl in amino acid can be more importantly promoted to react and be arranged in diatom
Native surface forms one layer of self-assembled molecule layer, which forms an additional electric field, can reduce diatomite surface potential energy, from
And diatomite surface duct is improved to the fixation degree of microbe granular, the stability of immobilized microorganism bacterial strain can be improved, have
Effect reduces it and causes to be lost in sewage disposal process, improves sewage treating efficiency；
(3) diatomite fixation of microbe: the short gemma bar of diatomite and 30 parts by weight after taking the activated modification of 10 parts by weight
Bacteria concentration is 4 × 109The seed bacterium solution of cell/g mixes, until being adsorbed after kieselguhr adsorption seed bacterium solution reaches saturation
The tripolite solution of bacterium；
600 weight account polyethylene alcohol and sodium alginate mixed aqueous solution are added into tripolite solution, wherein polyvinyl alcohol
Concentration be 6wt%, the concentration of sodium alginate is 2wt%, aaerosol solution is obtained after mixing at 1 DEG C, then to suspension
The calcium chloride solution for being 2.5wt% with syringe implantation concentration in solution, obtained diatomite is solid after 16h is crosslinked at a temperature of 2 DEG C
Surely change microorganism；When aaerosol solution is injected into calcium chloride solution, calcium chloride and sodium alginate generate calcium alginate, polyvinyl alcohol
Microorganism carrier gradually is collectively formed in diatomite cladding in gel, calcium alginate and polyvinyl alcohol at low temperature；
(4) preparation of the resin sorbent based on compound diatomite: take 5 parts by weight diatomite immobilization microorganism particles,
0.1 parts by weight of ethylene base trimethoxy silane is added in acrylate copolymer emulsion, adds 1 parts by weight butylhydroxy fennel
Fragrant ether and 1 parts by weight tetrahydrocannabinol are dried in vacuo after stirring at low speed at normal temperature and the tree based on compound diatomite are made
Rouge adsorbent；The special presence of butylated hydroxy anisole and tetrahydrocannabinol, so that resin possesses stronger ageing resistance, it is special
It is not anti-uv-ray, because when for handling rivers, especially deepwater oil slick, it will usually by prolonged day
It shines, improving anti-light aging ability helps to extend the physical life of resin；Be conducive to keep diatomite immobilized microorganism simultaneously
Bacterial strain vigor proposes the stability of high water-absorbing resin；
In resin sorbent based on compound diatomite, due to the presence of perforating agent, so that having inside resin a large amount of
Fine cellular structure makes resin have fast absorbing oil ability and biggish oil tankage；And diatomite immobilized microorganism
Particle loading has stronger stability in resin, simultaneously because under the conditions of room temperature stirs at low speed with acrylic ester copolymer
Object lotion is compound, polymeric inner network structure formed condition it is more mild, can farthest ensure microbial cell not by
Damage.
Embodiment 2:
A kind of preparation of compound diatomite sewage-treating agent, comprising the following steps:
(1) diatomite activates: taking diatomite to take out after 300 DEG C of heating 4h in Muffle furnace and is cooled to room temperature, body is then added
The hydrochloric acid solution that product concentration is 11%, after being heated to 90 DEG C and keeping the temperature 3h, centrifuge separation, after washing, adding volumetric concentration is
11% oxalic acid solution after stirring 3h at room temperature, is centrifugated, washing, 120 DEG C of drying, the diatomite after activation is made；
(2) diatomite surface modification: at room temperature, adding chitosan into the l-amino acid aqueous solution being slowly stirred,
It is slow added into the mixed solution of chlorogenic acid Yu 4- hydroxylphenylethyl alcohol, the diatomite after activation is added, 40 DEG C of ultrasonic mixing solution
80min, centrifugation are dried in vacuo solid solute 22h after being washed to neutrality；Modified one layer of the attachment of diatomite surface faint yellow glutinous
Stickiness colloidal sol can improve diatomite hydrophobic properties of the surface, improve the rate of its attached greasy dirt molecule of parent, increase greasy dirt adsorption capacity；
Wherein chitosan and the weight part ratio of l-amino acid are 3:4；The volumetric concentration of chlorogenic acid is the body of 5.6%, 4- hydroxylphenylethyl alcohol
Product concentration is 0.5%；
(3) diatomite fixation of microbe: the short gemma bar of diatomite and 55 parts by weight after taking the activated modification of 12 parts by weight
Bacteria concentration is 6 × 109The seed bacterium solution of cell/g mixes, until being adsorbed after kieselguhr adsorption seed bacterium solution reaches saturation
The tripolite solution of bacterium；
700 weight account polyethylene alcohol and sodium alginate mixed aqueous solution are added into tripolite solution, wherein polyvinyl alcohol
Concentration be 8wt%, the concentration of sodium alginate is 3wt%, aaerosol solution is obtained after mixing at 5 DEG C, then to suspension
The calcium chloride solution for being 3.0wt% with syringe implantation concentration in solution, is crosslinked that diatomite is made afterwards for 24 hours is solid at a temperature of 6 DEG C
Surely change microorganism；
(4) preparation of the resin sorbent based on compound diatomite: take 15 parts by weight diatomite immobilization microorganism particles,
0.3 parts by weight of ethylene base trimethoxy silane is added in acrylate copolymer emulsion, adds 2 parts by weight butylhydroxy fennels
Fragrant ether and 3 parts by weight tetrahydrocannabinol are dried in vacuo after stirring at low speed at normal temperature and the tree based on compound diatomite are made
Rouge adsorbent.
Embodiment 3:
A kind of preparation of compound diatomite sewage-treating agent, comprising the following steps:
(1) diatomite activates: taking diatomite to take out after 320 DEG C of heating 5h in Muffle furnace and is cooled to room temperature, body is then added
The hydrochloric acid solution that product concentration is 13%, after being heated to 95 DEG C and keeping the temperature 4h, centrifuge separation, after washing, adding volumetric concentration is
14% oxalic acid solution after stirring 4h at room temperature, is centrifugated, washing, 130 DEG C of drying, the diatomite after activation is made；
(2) diatomite surface modification: at room temperature, adding chitosan into the l-amino acid aqueous solution being slowly stirred,
It is slow added into the mixed solution of chlorogenic acid Yu 4- hydroxylphenylethyl alcohol, the diatomite after activation is added, 50 DEG C of ultrasonic mixing solution
100min, centrifugation are dried in vacuo solid solute for 24 hours after being washed to neutrality；Modified one layer of the attachment of diatomite surface faint yellow
Viscosity colloidal sol can improve diatomite hydrophobic properties of the surface, improve the rate of its attached greasy dirt molecule of parent, increase greasy dirt absorption and hold
Amount；Wherein chitosan and the weight part ratio of l-amino acid are 3:4；The volumetric concentration of chlorogenic acid is 5.6%, 4- hydroxylphenylethyl alcohol
Volumetric concentration is 0.5%；
(3) diatomite fixation of microbe: the short gemma bar of diatomite and 70 parts by weight after taking the activated modification of 15 parts by weight
Bacteria concentration is 8 × 109The seed bacterium solution of cell/g mixes, until being adsorbed after kieselguhr adsorption seed bacterium solution reaches saturation
The tripolite solution of bacterium；
800 weight account polyethylene alcohol and sodium alginate mixed aqueous solution are added into tripolite solution, wherein polyvinyl alcohol
Concentration be 10wt%, the concentration of sodium alginate is 4wt%, aaerosol solution is obtained after mixing at 6 DEG C, then to suspension
The calcium chloride solution for being 3.5wt% with syringe implantation concentration in solution, obtained diatomite is solid after 28h is crosslinked at a temperature of 8 DEG C
Surely change microorganism；
(4) preparation of the resin sorbent based on compound diatomite: take 20 parts by weight diatomite immobilization microorganism particles,
0.5 parts by weight of ethylene base trimethoxy silane is added in acrylate copolymer emulsion, adds 3 parts by weight butylhydroxy fennels
Fragrant ether and 5 parts by weight tetrahydrocannabinol are dried in vacuo after stirring at low speed at normal temperature and the tree based on compound diatomite are made
Rouge adsorbent.
Comparative example 1:
In diatomite surface modification process, it is added without chlorogenic acid and 4- hydroxylphenylethyl alcohol, rest part and embodiment 2 are complete
Unanimously.
Comparative example 2:
Butylated hydroxy anisole and tetrahydro hemp are added without in the preparation process of resin sorbent based on compound diatomite
Phenol, rest part and embodiment 2 are completely the same.
The resin sorbent prepared in embodiment 2 and comparative example 1-2 is used for oily waste water treatment, comparative example 1 and reality
The comparison discovery of example 2 is applied, adsorbent oily waste degradation rate prepared by comparative example 1 reduces, this may be because diatomite is in surface modification
It is not added with chlorogenic acid and 4- hydroxylphenylethyl alcohol in the process, causes diatomite less to the load capacity of microorganism, reduces microorganism
Degradation of the part to greasy dirt；And comparative example 2 prepare resin sorbent compared to embodiment 2, service life is obviously shortened, this table
Bright butylated hydroxy anisole and tetrahydrocannabinol it is special there are the anti-light aging ability for being conducive to improve resin sorbent to
Facilitate the physical life of extension resin.
Routine operation in operation of the present invention step is well known to those skilled in the art, herein without repeating.
Technical solution of the present invention is described in detail in embodiment described above, it should be understood that the above is only
For specific embodiments of the present invention, it is not intended to restrict the invention, all any modifications made in spirit of the invention,
Supplement or similar fashion substitution etc., should all be included in the protection scope of the present invention.
Claims (9)
1. the preparation method of the resin sorbent based on compound diatomite uses diatomite for first vector, resin is the second load
Microbial strains are fixed in body, it is characterised in that: the resin is fixed by acrylate copolymer emulsion and diatomite
Change microbe coupled gained.
2. the preparation method of the resin sorbent according to claim 1 based on compound diatomite, it is characterised in that: described
Coupling relies on coupling agent, butylated hydroxy anisole and tetrahydrocannabinol to complete.
3. the preparation method of the resin sorbent according to claim 1 based on compound diatomite, it is characterised in that: described
Resin preparation step are as follows: take 5-20 parts by weight diatomite immobilized microorganism, 0.1-0.5 parts by weight coupling agent, 1-3 parts by weight fourth
Base hydroxyanisole and 1-5 parts by weight tetrahydrocannabinol are added in acrylate copolymer emulsion, are stirred at low speed under room temperature
The resin sorbent based on compound diatomite is dried in vacuo to obtain after even.
4. the preparation method of the resin sorbent according to claim 1 based on compound diatomite, it is characterised in that: described
Diatomite activation step are as follows: taken out after taking diatomite to heat in Muffle furnace and be cooled to room temperature, hydrochloric acid solution is then added, heating is protected
Wen Hou, centrifuge separation, after washing, adds oxalic acid solution, after stirring at room temperature, is centrifugated, washing and drying is spare.
5. the preparation method of the resin sorbent according to claim 1 based on compound diatomite, it is characterised in that: described
Diatomite surface modification step are as follows: at room temperature, add chitosan into the l-amino acid aqueous solution being slowly stirred, then slowly
The mixed solution of chlorogenic acid and 4- hydroxylphenylethyl alcohol is added, the diatomite after activation is added, ultrasonic mixing solution is centrifuged, washing
Solid solute is dried in vacuo after to neutrality.
6. the preparation method of the resin sorbent according to claim 5 based on compound diatomite, it is characterised in that: described
Chitosan and the weight part ratio of l-amino acid are 3:2-5；The volumetric concentration of chlorogenic acid is 1-7%, the volume of 4- hydroxylphenylethyl alcohol
Concentration is 0.3-0.9%.
7. the preparation method of the resin sorbent according to claim 1 based on compound diatomite, it is characterised in that: described
Diatomite fixation of microbe step are as follows: diatomite and 30-70 parts by weight petroleum hydrocarbon after taking the activated modification of 10-15 parts by weight drop
Solving bacteria concentration is 4 × 109-8×109The seed bacterium solution of cell/g mixes, until after kieselguhr adsorption seed bacterium solution reaches saturation,
Obtain the tripolite solution of absorption bacterium.
8. the preparation method of the resin sorbent according to claim 7 based on compound diatomite, it is characterised in that: described
600-800 weight account polyethylene alcohol and mixed solution of sodium alginate are added into the tripolite solution of absorption bacterium, wherein poly- second
The concentration of enol is 6-10wt%, and the concentration of sodium alginate is 2-4wt%, obtains aaerosol solution after mixing at 1-6 DEG C,
Then the calcium chloride solution that implantation concentration is 2.5-3.5wt% into aaerosol solution, makes after being crosslinked 16-28h at a temperature of 2-8 DEG C
Obtain diatomite immobilized microorganism.
9. the preparation method of the resin sorbent according to claim 7 based on compound diatomite, it is characterised in that: described
Petroleum hydrocarbon degradation bacterium is bacillus brevis.
Priority Applications (1)
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| CN114317515A (en) * | 2021-12-31 | 2022-04-12 | 内蒙古金达威药业有限公司 | Method for preparing beta-nicotinamide mononucleotide by immobilized whole cell catalysis with modified diatomite as carrier |
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