CN108751387A - A kind of preparation method of floating type photocatalysis-biodegradation filtrate - Google Patents
A kind of preparation method of floating type photocatalysis-biodegradation filtrate Download PDFInfo
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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
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- 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
- C02F3/02—Aerobic processes
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- C02F3/108—Immobilising gels, polymers or the like
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- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
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- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/10—Photocatalysts
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Abstract
The invention discloses a kind of preparation methods of floating type photocatalysis-biodegradation filtrate, belong to water process preparation technique field.It counts in parts by weight, weighs 50~60 parts of polypropylene, 15~25 parts of additives successively, 5~8 parts of anti-aging agents, polypropylene and additive are mixed in batch mixer, and anti-aging agent are added into batch mixer by 2~5 parts of plasticizer and 1~5 part of surfactant, plasticizer and surfactant, it is 55~75 DEG C in temperature, after rotating speed is stirred 30~45min under conditions of being 250~350r/min, obtains blank, by blank after melting extrusion, floating type photocatalysis-biodegradation filtrate is obtained.Floating type photocatalysis-biodegradation filtrate prepared by the present invention has excellent wastewater treatment efficiency.
Description
Technical field
The invention discloses a kind of preparation methods of floating type photocatalysis-biodegradation filtrate, belong to water process preparation skill
Art field.
Background technology
Floating stuffing is mainly used for the pretreatment of drinking water embrane method, and anaerobic waste water, the processing of aerobic embrane method are biological film fluidized bed
Deng, it is special a little with its compared with existing other similar fillers, it is mainly reflected in following several respects：(1) microorganism is easy
It is attached to filter material surface and forms biomembrane, biofilm is rapid；(2) its special structure is easy to fluidize in full pond, and gas consumption is few, power
Save, have it is good ventilated it is aqueous can, be easy to the generation of biomembrane and fall off, anaerobism, aerobic tank are usable.It reasonably compares
Weight, can not conglomeration, do not block, do not accumulate, installation is very simple, direct plunges into water body；(3) due to filler sheet
Unstability on body structure, make it have greatly it is fluidity, not only improve oxygen-transfer efficiency, but also gas, liquid, solid can be improved
The mass-transfer efficiency of three-phase；(4) floating stuffing density can be in fluidisation shape in water under a certain amount of aeration effect close to 1
State substantially increases the mass-transfer efficiency of dissolved oxygen, is conducive to the continuous renewal of biomembrane, promotes the degradation of ammonia nitrogen and organic matter；
(5) it is suitble in the case where not affecting the normal production, it, can be conveniently by adjusting filler by being transformed to existing utility
Dispensing than handling different sewage, to adapt to the variation of different quality.
A kind of thermoplastic resin of prepared by polypropylene (PP) is by propylene polymerization.Polypropylene is nontoxic, tasteless, and density is small,
Intensity, rigidity, hardness, heat resistance are preferable, and common acid, alkali organic solvent almost do not work to it.Polypropylene abundance,
It is cheap, it is one of most widely used five big general-purpose plastics, in household electrical appliance, auto industry, agricultural facility, machinery and builds
It builds in equal fields and is widely used.
However, in order to further increase the performance of biofilter material, it generally can be inorganic with photocatalysis efficiency by addition
Catalyst, such as AgBr, TiO2Deng, and PP is macromolecule organic polymer, using conventional extrusion processes by organic catalyst and PP
During coextrusion, there are the inorganic catalysis of organic catalyst and PP compatibilities and organic catalyst, especially nano-scale
Agent is easy to reunite in PP matrixes, and the poor problem of dispersibility can not further increase so as to cause product photocatalysis effect, because
How this, make the inorganic photochemical catalyst of the nano-scale fine dispersion in PP resin matrixes become the art urgently to be resolved hurrily
One of the technical issues of.
Invention content
The present invention solves the technical problem of：For conventional Ti O2In the preparation, nano particle exists-PP biofilter materials
It is easy to reunite in PP matrixes, dispersibility is poor, and photocatalysis effect can not further increase, and cause the treatment effect to sewage bad
The problem of, provide a kind of preparation method of floating type photocatalysis-biodegradation filtrate.In order to solve the above-mentioned technical problem, originally
Technical solution is used by invention：
(1) by gelatin and water in mass ratio 1：10~1：18 mixing, stand swelling, and heating stirring mixing obtains gelatin solution；
(2) by gelatin solution isothermal holding, and the endopeptidase of 0.08~0.12 times of gelatin solution quality is added, is stirred
Afterwards, it is heated at high temperature, it is cooling, obtain pretreatment enzymolysis liquid；
(3) pH of pretreatment enzymolysis liquid is adjusted, and the butyl titanate for pre-processing 0.2~0.4 times of enzymolysis liquid quality is dilute
It releases drop to enter to pre-process in enzymolysis liquid, after being stirred, adjusts pH to neutrality, obtain 1 processing enzymolysis liquid；
(4) by 1 processing enzymolysis liquid and silver nitrate solution in mass ratio 5：2~5：3 mixing, be used in combination hydrogen bromide adjust pH to
4.8~5.2, after being stirred, obtain 2 processing enzymolysis liquids；
(5) enzymolysis liquid heating water bath is handled by 2 times, it is cooling, 2 processing enzymolysis liquids must be pre-processed, by 2 processing of pretreatment
Enzymolysis liquid and acetic acid in mass ratio 5：1~8：1 mixing, and the acetic anhydride of 1~2 times of quality of acetic acid is added, after being stirred to react, it must add
Add agent blank, after additive blank is dialysed 4~5 days in bag filter, is freeze-dried, crushes, obtain additive；
(6) it counts in parts by weight, weighs 50~60 parts of polypropylene successively, 15~25 parts of additives, 5~8 parts of anti-aging agents, 2
~5 parts of plasticizer and 1~5 part of surfactant, polypropylene are mixed with additive, and anti-aging agent is added, plasticizer and surface
Activating agent, after being stirred, melting extrusion obtains floating type photocatalysis-biodegradation filtrate.
The temperature of step (2) described isothermal holding is 45~55 DEG C.
Step (2) described endopeptidase is any one in papain or trypsase.
The preparation method of step (3) the butyl titanate dilution be by butyl titanate and absolute ethyl alcohol in mass ratio
1：5~2：5 mixing, obtain butyl titanate dilution.
The temperature of step (5) described heating water bath is 230~260 DEG C.
Step (6) described anti-aging agent is anti-aging agent RD, any one in antioxidant 4020 or antioxidant 4010.Step (6)
The plasticizer is dioctyl phthalate, any one in di-n-octyl phthalate or diethyl phthalate.
Step (6) described surfactant is Arlacel-80, any one in Tween-60 or Arlacel-60.
The beneficial effects of the invention are as follows：
Additive is added when preparing floating type photocatalysis-biodegradation filtrate in the present invention, and first, the present invention is in additive
Middle addition gelatin is 2.4~2.8 due to starting pH in preparation process, gelatin expansion, so as to by TiO 2 precursor
It is adsorbed in gelatine, and with the raising of pH, TiO 2 precursor can be coated in gelatin by gelatin contraction, follow-up two
The reunion of titanium dioxide can be effectively prevent in the preparation process of titanium oxide, to make the photocatalytic of product improve, secondly, gelatin
When adsorbing silver bromide, since system pH is neutrality, gelatin expansion so that silver nitrate can enter gelatine, and bromination is being added
After hydrogen, system pH is close to gelatin isoelectric point, to make gelatin shrink, and the precipitation silver bromide that hydrogen bromide and silver nitrate are formed
Silver bromide can be formed in gelatine and precipitate and be covered in titanium hydroxide surface, prevent titanium hydroxide and reaction of hydrogen bromide, furthermore,
Gelatin is further modified gelatin after absorption silver bromide and titanium dioxide, acetylation is carried out to gelatin, to make gelatin
It is improved with the describing property of high molecular material, and then makes to be added to silver bromide and titanium dioxide and can be uniformly distributed in polypropylene, made
The photocatalytic of product improves, also, since gelatin first carries out Partial digestion when being added, so as to make gelatin volume reduce,
Covering property improves while exposure more active sites, and then the silver bromide of addition and titanium dioxide is made further uniformly to divide
It is distributed in polypropylene, the photocatalytic of product is made to improve.
Specific implementation mode
By butyl titanate and absolute ethyl alcohol in mass ratio 1：5~2：5 mixing, in temperature be 30~45 DEG C, rotating speed 200
Under conditions of~300r/min, after being stirred 20~30min, butyl titanate dilution is obtained；In mass ratio by gelatin and water
1：10~1：18 mixing after standing swelling under conditions of being 35~45 DEG C in temperature, and are 55~65 DEG C in temperature, and rotating speed is
After being stirred 30~45min under conditions of 250~350r/min, gelatin solution is obtained；By gelatin solution in temperature be 45~55
Isothermal holding under conditions of DEG C, and the endopeptidase of 0.08~0.12 times of gelatin solution quality is added into gelatin solution, in temperature
Be 45~55 DEG C, rotating speed is stirred 20~40min under conditions of being 250~320r/min, and in temperature be 75~95 DEG C
Under the conditions of high-temperature heating 15~25min after, the gelatin solution after heating is cooled to 45~55 DEG C, obtains pretreatment enzymolysis liquid；With
Glacial acetic acid adjusts the pH of pretreatment enzymolysis liquid to 2.4~2.8, and the metatitanic acid that will pre-process 0.2~0.4 times of enzymolysis liquid quality
Four butyl ester dilutions are instilled with the rate of 2~5mL/min in pretreatment enzymolysis liquid, are 45~55 DEG C in temperature, and rotating speed is 300~
After being stirred 4~5h under conditions of 320r/min, 1 processing enzymolysis liquid, the ammonia for being 8~12% with mass fraction must be pre-processed
Water adjusts the pH of 1 processing enzymolysis liquid of pretreatment to neutrality, obtains 1 processing enzymolysis liquid；By 1 processing enzymolysis liquid and mass fraction
For 15~20% silver nitrate solution in mass ratio 5：2~5：3 are mixed in beaker, and it is 5~12% bromine that mass fraction, which is used in combination,
It is 45~55 DEG C to change hydrogen in temperature, and rotating speed is instilled with the rate of 2~4mL/min in beaker under conditions of being 300~350r/min,
Until the pH for adjusting material in beaker is 4.8~5.2,2 processing enzymolysis liquids are obtained；By 2 times processing enzymolysis liquids in temperature be 230~
Under conditions of 260 DEG C after 1~2h of heating water bath, it is 45~55 DEG C to be cooled to temperature, must pre-process 2 processing enzymolysis liquids, will be pre-
The acetic acid in mass ratio 5 that 2 processing enzymolysis liquids of processing are 20~30% with mass fraction：1~8：1 is mixed in flask, and to
The acetic anhydride of 1~2 times of quality of acetic acid is added in flask, is 55~75 DEG C in temperature, rotating speed is under conditions of 200~350r/min
After being stirred to react 4~5h, obtain additive blank, additive blank be placed in bag filter, and be added additive blank quality 1~
2 times of water after dialysing 4~5 days, is freeze-dried, crushes, obtain additive；It counts in parts by weight, weighs 50~60 parts poly- third successively
Alkene, 15~25 parts of additives, 5~8 parts of anti-aging agents, 2~5 parts of plasticizer and 1~5 part of surfactant, by polypropylene and addition
Agent is mixed in batch mixer, and anti-aging agent is added into batch mixer, plasticizer and surfactant, in temperature be 55~75 DEG C,
After rotating speed is stirred 30~45min under conditions of being 250~350r/min, blank is obtained, by blank after melting extrusion, is obtained outstanding
Floating type photocatalysis-biodegradation filtrate.The endopeptidase is any one in papain or trypsase.The anti-aging agent
For anti-aging agent RD, any one in antioxidant 4020 or antioxidant 4010.The plasticizer is dioctyl phthalate, adjacent benzene
Any one in dioctyl phthalate di-n-octyl or diethyl phthalate.The surfactant be Arlacel-80, Tween-60 or
Any one in Arlacel-60.
Example 1
By butyl titanate and absolute ethyl alcohol in mass ratio 2：5 mixing are 45 DEG C in temperature, and rotating speed is the item of 300r/min
Under part, after being stirred 30min, butyl titanate dilution is obtained；By gelatin and water in mass ratio 1：18 mixing, in temperature be 45
After standing swelling under conditions of DEG C, and it is 65 DEG C in temperature, after rotating speed is stirred 45min under conditions of being 350r/min, obtains
Gelatin solution；Isothermal holding under conditions of being 55 DEG C in temperature by gelatin solution, and gelatin solution matter is added into gelatin solution
The endopeptidase of 0.12 times of amount is 55 DEG C in temperature, and rotating speed is stirred 40min under conditions of being 320r/min, and is in temperature
After being heated at high temperature 25min under conditions of 95 DEG C, the gelatin solution after heating is cooled to 55 DEG C, obtains pretreatment enzymolysis liquid；Use ice
Acetic acid adjusts the pH of pretreatment enzymolysis liquid to 2.8, and the butyl titanate dilution that will pre-process 0.4 times of enzymolysis liquid quality
It is instilled in pretreatment enzymolysis liquid with the rate of 5mL/min, is 55 DEG C in temperature, rotating speed is stirred under conditions of being 320r/min
After 5h, 1 processing enzymolysis liquid must be pre-processed, the ammonium hydroxide for being 12% with mass fraction adjusts the pH of 1 processing enzymolysis liquid of pretreatment
To neutrality, 1 processing enzymolysis liquid is obtained；The silver nitrate solution in mass ratio 5 for being 20% with mass fraction by 1 processing enzymolysis liquid：3
Be mixed in beaker, it in temperature is 55 DEG C that hydrogen bromide that mass fraction is 12%, which is used in combination, rotating speed be 350r/min under conditions of with
The rate of 4mL/min instills in beaker, until the pH for adjusting material in beaker is 5.2, obtains 2 processing enzymolysis liquids；2 times are handled
Under conditions of enzymolysis liquid is 260 DEG C in temperature after heating water bath 2h, it is 55 DEG C to be cooled to temperature, must pre-process 2 processing enzymolysis
Liquid, the acetic acid in mass ratio 8 for being 30% with mass fraction by 2 processing enzymolysis liquids of pretreatment：1 is mixed in flask, and to burning
Bottle in be added 2 times of quality of acetic acid acetic anhydride, in temperature be 75 DEG C, rotating speed be 350r/min under conditions of be stirred to react 5h after,
Additive blank is obtained, additive blank is placed in bag filter, and the water of 2 times of additive blank quality is added, after dialysing 5 days,
Freeze-drying crushes, obtains additive；It counts in parts by weight, weighs 60 parts of polypropylene successively, 25 parts of additives, 8 parts of anti-aging agents, 5
Polypropylene and additive are mixed in batch mixer by part plasticizer and 5 parts of surfactants, and are added and are prevented always into batch mixer
Agent, plasticizer and surfactant are 75 DEG C in temperature, after rotating speed is stirred 45min under conditions of being 350r/min, obtain base
Material, by blank after melting extrusion, obtains floating type photocatalysis-biodegradation filtrate.The endopeptidase is papain.It is described
Anti-aging agent is anti-aging agent RD.The plasticizer is dioctyl phthalate.The surfactant is Arlacel-80.
Example 2
By butyl titanate and absolute ethyl alcohol in mass ratio 2：5 mixing are 45 DEG C in temperature, and rotating speed is the item of 300r/min
Under part, after being stirred 30min, butyl titanate dilution is obtained；By gelatin and water in mass ratio 1：18 mixing, in temperature be 45
After standing swelling under conditions of DEG C, and it is 65 DEG C in temperature, after rotating speed is stirred 45min under conditions of being 350r/min, obtains
Gelatin solution；The pH of gelatin solution is adjusted to 2.8 with glacial acetic acid, and by the butyl titanate of 0.4 times of gelatin solution quality
Dilution is instilled with the rate of 5mL/min in gelatin solution, is 55 DEG C in temperature, rotating speed stirs mixed under conditions of being 320r/min
After closing 5h, 1 processing enzymolysis liquid must be pre-processed, the ammonium hydroxide for being 12% with mass fraction adjusts 1 processing enzymolysis liquid of pretreatment
PH obtains 1 processing enzymolysis liquid to neutrality；By 1 processing enzymolysis liquid and mass fraction be 20% silver nitrate solution in mass ratio
5：3 are mixed in beaker, and it in temperature is 55 DEG C that hydrogen bromide that mass fraction is 12%, which is used in combination, under conditions of rotating speed is 350r/min
It is instilled in beaker with the rate of 4mL/min, until the pH for adjusting material in beaker is 5.2, obtains 2 processing enzymolysis liquids；At 2 times
It manages under conditions of enzymolysis liquid is 260 DEG C in temperature after heating water bath 2h, it is 55 DEG C to be cooled to temperature, must pre-process 2 treatment enzymes
Liquid is solved, the acetic acid in mass ratio 8 for being 30% with mass fraction by 2 processing enzymolysis liquids of pretreatment：1 is mixed in flask, and to
The acetic anhydride of 2 times of quality of acetic acid is added in flask, is 75 DEG C in temperature, rotating speed is stirred to react 5h under conditions of being 350r/min
Afterwards, additive blank is obtained, additive blank is placed in bag filter, and the water of 2 times of additive blank quality is added, is dialysed 5 days
Afterwards, it is freeze-dried, crushes, obtain additive；It counts in parts by weight, weighs 60 parts of polypropylene successively, 25 parts of additives, 8 parts anti-old
Polypropylene and additive are mixed in batch mixer by agent, 5 parts of plasticizer and 5 parts of surfactants, and are added and are prevented into batch mixer
Old agent, plasticizer and surfactant are 75 DEG C in temperature, after rotating speed is stirred 45min under conditions of being 350r/min, obtain
Blank obtains floating type photocatalysis-biodegradation filtrate by blank after melting extrusion.The anti-aging agent is anti-aging agent RD.It is described
Plasticizer is dioctyl phthalate.The surfactant is Arlacel-80.
Example 3
By butyl titanate and absolute ethyl alcohol in mass ratio 2：5 mixing are 45 DEG C in temperature, and rotating speed is the item of 300r/min
Under part, after being stirred 30min, butyl titanate dilution is obtained；By gelatin and water in mass ratio 1：18 mixing, in temperature be 45
After standing swelling under conditions of DEG C, and it is 65 DEG C in temperature, after rotating speed is stirred 45min under conditions of being 350r/min, obtains
Gelatin solution；Isothermal holding under conditions of being 55 DEG C in temperature by gelatin solution, and gelatin solution matter is added into gelatin solution
The endopeptidase of 0.12 times of amount is 55 DEG C in temperature, and rotating speed is stirred 40min under conditions of being 320r/min, and is in temperature
After being heated at high temperature 25min under conditions of 95 DEG C, the gelatin solution after heating is cooled to 55 DEG C, obtains pretreatment enzymolysis liquid；Use ice
Acetic acid adjusts the pH of pretreatment enzymolysis liquid to 2.8, and the butyl titanate dilution that will pre-process 0.4 times of enzymolysis liquid quality
It is instilled in pretreatment enzymolysis liquid with the rate of 5mL/min, is 55 DEG C in temperature, rotating speed is stirred under conditions of being 320r/min
After 5h, 1 processing enzymolysis liquid must be pre-processed, the ammonium hydroxide for being 12% with mass fraction adjusts the pH of 1 processing enzymolysis liquid of pretreatment
To neutrality, 1 processing enzymolysis liquid is obtained；It is 55kHz ultrasonic disperse 15min to handle enzymolysis liquid in frequency by 1 time, obtains 2 treatment enzymes
Solve liquid；Under conditions of being 260 DEG C in temperature by 2 processing enzymolysis liquids after heating water bath 2h, it is 55 DEG C to be cooled to temperature, obtains pre- place
2 processing enzymolysis liquids of reason, the acetic acid in mass ratio 8 for being 30% with mass fraction by 2 processing enzymolysis liquids of pretreatment：1 is mixed in
In flask, and into flask be added 2 times of quality of acetic acid acetic anhydride, in temperature be 75 DEG C, rotating speed be 350r/min under conditions of
After being stirred to react 5h, additive blank is obtained, additive blank is placed in bag filter, and 2 times of additive blank quality is added
Water after dialysing 5 days, is freeze-dried, crushes, obtain additive；It counts in parts by weight, weighs 60 parts of polypropylene, 25 parts of additions successively
Polypropylene and additive are mixed in batch mixer by agent, 8 parts of anti-aging agents, 5 parts of plasticizer and 5 parts of surfactants, and to batch mixing
Anti-aging agent, plasticizer and surfactant are added in machine, is 75 DEG C in temperature, rotating speed is stirred under conditions of being 350r/min
After 45min, blank is obtained, by blank after melting extrusion, obtains floating type photocatalysis-biodegradation filtrate.The endopeptidase is wood
Melon protease.The anti-aging agent is anti-aging agent RD.The plasticizer is dioctyl phthalate.The surfactant is department
Disk -80.
Example 4
By butyl titanate and absolute ethyl alcohol in mass ratio 2：5 mixing are 45 DEG C in temperature, and rotating speed is the item of 300r/min
Under part, after being stirred 30min, butyl titanate dilution is obtained；By gelatin and water in mass ratio 1：18 mixing, in temperature be 45
After standing swelling under conditions of DEG C, and it is 65 DEG C in temperature, after rotating speed is stirred 45min under conditions of being 350r/min, obtains
Gelatin solution；Isothermal holding under conditions of being 55 DEG C in temperature by gelatin solution, and gelatin solution matter is added into gelatin solution
The endopeptidase of 0.12 times of amount is 55 DEG C in temperature, and rotating speed is stirred 40min under conditions of being 320r/min, and is in temperature
After being heated at high temperature 25min under conditions of 95 DEG C, the gelatin solution after heating is cooled to 55 DEG C, obtains pretreatment enzymolysis liquid；Use ice
Acetic acid adjusts the pH of pretreatment enzymolysis liquid to 2.8, and the butyl titanate dilution that will pre-process 0.4 times of enzymolysis liquid quality
It is instilled in pretreatment enzymolysis liquid with the rate of 5mL/min, is 55 DEG C in temperature, rotating speed is stirred under conditions of being 320r/min
After 5h, 1 processing enzymolysis liquid must be pre-processed, the ammonium hydroxide for being 12% with mass fraction adjusts the pH of 1 processing enzymolysis liquid of pretreatment
To neutrality, 1 processing enzymolysis liquid is obtained；The silver nitrate solution in mass ratio 5 for being 20% with mass fraction by 1 processing enzymolysis liquid：3
Be mixed in beaker, it in temperature is 55 DEG C that hydrogen bromide that mass fraction is 12%, which is used in combination, rotating speed be 350r/min under conditions of with
The rate of 4mL/min instills in beaker, until the pH for adjusting material in beaker is 5.2, obtains 2 processing enzymolysis liquids；2 times are handled
Enzymolysis liquid is freeze-dried, and is crushed, is obtained additive；It counts in parts by weight, weighs 60 parts of polypropylene successively, 25 parts of additives, 8 parts anti-
Polypropylene and additive are mixed in batch mixer, and are added into batch mixer by old agent, 5 parts of plasticizer and 5 parts of surfactants
Anti-aging agent, plasticizer and surfactant, in temperature be 75 DEG C, rotating speed be 350r/min under conditions of be stirred 45min after,
It obtains blank and obtains floating type photocatalysis-biodegradation filtrate by blank after melting extrusion.The endopeptidase is papain.
The anti-aging agent is anti-aging agent RD.The plasticizer is dioctyl phthalate.The surfactant is Arlacel-80.
Comparative example：The biofilter material of Yixing water treatment filler factory production.
1 to 4 gained biofilter material of example and comparative example product are subjected to performance detection, specific detection method is as follows：
It is the micro-polluted water of 10mg/L to take COD contents, is handled it using above-mentioned biofilter material, water after detection process
In COD contents.GB11914 is pressed in the test of COD removal rates《Measurement-potassium dichromate method of water chemical oxygen demand》Standard is examined
It surveys.
Specific testing result is as shown in table 1：
Table 1：Performance detection table
By 1 testing result of table it is found that present invention gained floating type photocatalysis-biodegradation filtrate has excellent sewage
Manage effect.
Claims (8)
1. a kind of preparation method of floating type photocatalysis-biodegradation filtrate, which is characterized in that specifically preparation process is：
(1) by gelatin and water in mass ratio 1：10~1：18 mixing, stand swelling, and heating stirring mixing obtains gelatin solution；
(2) by gelatin solution isothermal holding, and the endopeptidase of 0.08~0.12 times of gelatin solution quality is added, after being stirred,
High-temperature heating, it is cooling, obtain pretreatment enzymolysis liquid；
(3) pH of pretreatment enzymolysis liquid, and the butyl titanate dilution that 0.2~0.4 times of enzymolysis liquid quality will be pre-processed are adjusted
It instills in pretreatment enzymolysis liquid, after being stirred, adjusts pH to neutrality, obtain 1 processing enzymolysis liquid；
(4) by 1 processing enzymolysis liquid and silver nitrate solution in mass ratio 5：2~5：3 mixing, are used in combination hydrogen bromide to adjust pH to 4.8
~5.2, after being stirred, obtain 2 processing enzymolysis liquids；
(5) enzymolysis liquid heating water bath is handled by 2 times, it is cooling, 2 processing enzymolysis liquids must be pre-processed, by 2 processing enzymolysis of pretreatment
Liquid and acetic acid in mass ratio 5：1~8：1 mixing, and the acetic anhydride of 1~2 times of quality of acetic acid is added, after being stirred to react, obtain additive
Blank after additive blank is dialysed 4~5 days in bag filter, is freeze-dried, crushes, obtain additive；
(6) it counts in parts by weight, weighs 50~60 parts of polypropylene successively, 15~25 parts of additives, 5~8 parts of anti-aging agents, 2~5 parts
Plasticizer and 1~5 part of surfactant, polypropylene are mixed with additive, and anti-aging agent is added, plasticizer and surface-active
Agent, after being stirred, melting extrusion obtains floating type photocatalysis-biodegradation filtrate.
2. a kind of preparation method of floating type photocatalysis-biodegradation filtrate according to claim 1, it is characterised in that：
The temperature of step (2) described isothermal holding is 45~55 DEG C.
3. a kind of preparation method of floating type photocatalysis-biodegradation filtrate according to claim 1, it is characterised in that：
Step (2) described endopeptidase is any one in papain or trypsase.
4. a kind of preparation method of floating type photocatalysis-biodegradation filtrate according to claim 1, it is characterised in that：
The preparation method of step (3) the butyl titanate dilution is by butyl titanate and absolute ethyl alcohol in mass ratio 1：5~2：5
Mixing, obtains butyl titanate dilution.
5. a kind of preparation method of floating type photocatalysis-biodegradation filtrate according to claim 1, it is characterised in that：
The temperature of step (5) described heating water bath is 230~260 DEG C.
6. a kind of preparation method of floating type photocatalysis-biodegradation filtrate according to claim 1, it is characterised in that：
Step (6) described anti-aging agent is anti-aging agent RD, any one in antioxidant 4020 or antioxidant 4010.
7. a kind of preparation method of floating type photocatalysis-biodegradation filtrate according to claim 1, it is characterised in that：
Step (6) the plasticizer is dioctyl phthalate, is appointed in di-n-octyl phthalate or diethyl phthalate
Meaning is a kind of.
8. a kind of preparation method of floating type photocatalysis-biodegradation filtrate according to claim 1, it is characterised in that：
Step (6) described surfactant is Arlacel-80, any one in Tween-60 or Arlacel-60.
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| JP2005272244A (en) * | 2004-03-25 | 2005-10-06 | Wen-Chiuan Liou | Method for synthesizing highly adsorptive titanium dioxide nanoparticle solution |
| CN107937381A (en) * | 2017-12-14 | 2018-04-20 | 深圳市长隆科技有限公司 | A kind of spherical microbe carrier of activeness and quietness polyvinyl alcohol and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005272244A (en) * | 2004-03-25 | 2005-10-06 | Wen-Chiuan Liou | Method for synthesizing highly adsorptive titanium dioxide nanoparticle solution |
| CN107937381A (en) * | 2017-12-14 | 2018-04-20 | 深圳市长隆科技有限公司 | A kind of spherical microbe carrier of activeness and quietness polyvinyl alcohol and preparation method thereof |
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