CN108706719A - A kind of novel environment friendly filler and preparation method thereof for fluid bed biological film method - Google Patents

A kind of novel environment friendly filler and preparation method thereof for fluid bed biological film method Download PDF

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CN108706719A
CN108706719A CN201810301172.0A CN201810301172A CN108706719A CN 108706719 A CN108706719 A CN 108706719A CN 201810301172 A CN201810301172 A CN 201810301172A CN 108706719 A CN108706719 A CN 108706719A
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parts
environment friendly
novel environment
fluid bed
microballoon
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CN108706719B (en
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徐雄剑
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Sichuan Weisida Medical Equipment Co ltd
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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
    • 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
    • C02F3/02—Aerobic processes
    • C02F3/10—Packings; Fillings; Grids
    • C02F3/105—Characterized by the chemical composition
    • 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
    • C02F3/02—Aerobic processes
    • C02F3/10—Packings; Fillings; Grids
    • C02F3/105—Characterized by the chemical composition
    • C02F3/108—Immobilising gels, polymers or the like
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    • C08J3/00—Processes of treating or compounding macromolecular substances
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    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
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    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/0061—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof characterized by the use of several polymeric components
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    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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    • C08J9/0066—Use of inorganic compounding ingredients
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    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/0085—Use of fibrous compounding ingredients
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    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
    • C08J9/14—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent organic
    • C08J9/143—Halogen containing compounds
    • C08J9/144—Halogen containing compounds containing carbon, halogen and hydrogen only
    • C08J9/145—Halogen containing compounds containing carbon, halogen and hydrogen only only chlorine as halogen atoms
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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
    • C02F2003/001—Biological treatment of water, waste water, or sewage using granular carriers or supports for the microorganisms
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    • C08J2203/00—Foams characterized by the expanding agent
    • C08J2203/14—Saturated hydrocarbons, e.g. butane; Unspecified hydrocarbons
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    • C08J2327/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
    • C08J2327/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
    • C08J2327/04—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
    • C08J2327/06—Homopolymers or copolymers of vinyl chloride
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    • C08J2429/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal, or ketal radical; Hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Derivatives of such polymer
    • C08J2429/02—Homopolymers or copolymers of unsaturated alcohols
    • C08J2429/04—Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
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    • C08J2433/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
    • C08J2433/24—Homopolymers or copolymers of amides or imides
    • C08J2433/26—Homopolymers or copolymers of acrylamide or methacrylamide
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    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
    • C08K13/04—Ingredients characterised by their shape and organic or inorganic ingredients
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    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/32—Phosphorus-containing compounds
    • C08K2003/321—Phosphates
    • C08K2003/325—Calcium, strontium or barium phosphate
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Abstract

The present invention provides a kind of novel environment friendly filler for fluid bed biological film method, which is characterized in that the novel environment friendly filler includes that outer layer mesh bag and internal layer fill microballoon；The internal layer filling microballoon includes 5-10 parts of carbonization rice husk powder, 5-10 parts of diatomite, 5-10 parts of calcium hydroxy phosphate, 40-60 parts of PVC elastomers, 20-40 parts of polyvinyl alcohol resin, 2-6 parts of stearic acid, 1-5 parts of polyacrylamide, 10-20 parts of foaming agent in parts by mass；The outer layer mesh bag is thermoplastic resin, and being bonded in internal layer by heat treatment fills on microsphere surface.The present invention novel environment friendly filler have simple structure construction, production cost can be reduced, and filler environmental protection is degradable, biofilm amount is big, treated sewage it is efficient.

Description

A kind of novel environment friendly filler and preparation method thereof for fluid bed biological film method
Technical field
The invention belongs to sewage treatment fields, and in particular to a kind of novel environment friendly filler for fluid bed biological film method and Preparation method.
Background technology
Ammonia nitrogen in sewage is primary pollution source, currently, being directed to ammonia nitrogen, main minimizing technology has physical absorption, catalysis oxygen Change and Biological Pretreatment method.Ammonia nitrogen is polar molecule, need to be modified to common adsorbents, such as activated carbon, zeolite, haydite, And adsorption effect is limited, reaching saturation need to be regenerated, and comprehensive treatment effect and economy are relatively suitable for burst Pollution, unsuitable As conventional treatment method；Ammonia nitrogen is extremely stablized in water body, and general oxidant is difficult to aoxidize it, general using catalysis oxygen Change, but ineffective and operating cost is high；Consider from treatment effect and economy, biological treatment is that optimal selection is also universal Method.Activated sludge process and biofilm are often used in biological treatment.
MBBR (Moving Bed Bio lm Reactor, moving bed biofilm reactor) is by being thrown into reactor Add a certain number of floating stuffings, improves biomass and biological species in reactor, to improve the treatment effeciency of reactor, Floating stuffing proportion, with water body similar density before and after biofilm, makes it that can suspend in water close to water, compares fluidized-bed process, It is low to fluidize power, by being aerated on a small quantity, so that it may realize that filler fluidizes completely, realize efficient process.The essence of MBBR techniques be according to Biomembrane principle is run by activated sludge mode.
Biologic packing material is one of core of biological wastewater treatment technology, its hydrophily and bioaffinity will directly affect Attachment, the growth of microorganism, to influence the treatment effect of waste water.Currently, in the market common polyvinyl chloride biologic packing material by It is poor in hydrophilicity and bioaffinity, cause to exist not in terms of biofilm speed, biofilm amount and the tight ness rating of film and filler Foot, to PVC（The polymeric material of vinyl）Appropriate substance is added in filler and carries out blending and modifying, it is expected to improve filler mass transfer, 2 Biofilm and water treatmenting performance.In addition the impact strength of PVC only has 2-5kJ/m, has impact strength is low, thermal stability is poor etc. to lack Point, causes the filler to be easy aging, and service life is shorter.And processing and forming complex steps, the waste of more raw material is caused, therefore It is a kind of simple in structure to be badly in need of exploitation, treatment effeciency is high, the strong environment-friendly type filler of durability.
Invention content
In view of the above technical problems, the present invention provides a kind of novel environment friendly filler for fluid bed biological film method, tool There is simple structure to construct, production cost can be reduced, and filler environmental protection is degradable, biofilm amount is big, treated sewage it is efficient.
A kind of novel environment friendly filler for fluid bed biological film method, which is characterized in that the novel environment friendly filler includes Outer layer mesh bag and internal layer fill microballoon；The internal layer filling microballoon includes 5-10 parts of carbonization rice husk powder, diatom in parts by mass It is 5-10 parts native, 5-10 parts of calcium hydroxy phosphate, 40-60 parts of PVC elastomers, 20-40 parts of polyvinyl alcohol resin, 2-6 parts of stearic acid, gather 1-5 parts of acrylamide, 10-20 parts of foaming agent；The outer layer mesh bag is thermoplastic resin, and internal layer filling is bonded in by heat treatment On microsphere surface.
Further, the mesh diameter of a diameter of 1-2cm of the internal layer filling microballoon, the outer layer mesh bag are 0.3- 0.6cm。
Further, the foaming agent in the internal layer filling microballoon is isopropyl chloride.
Further, the powder diameter of the carbonization rice husk powder, diatomite, calcium hydroxy phosphate is 200 mesh or less.
Further, the specific surface area of the internal layer filling microballoon is more than 600m2/g。
Further, the thermoplastic resin of the outer layer mesh bag is in polyethylene, polypropylene, polyvinyl chloride, polystyrene It is at least one.
Further, the treatment temperature of the heat treatment bonding is 120-150 DEG C.
Further, each novel environment friendly filler includes that 20-100 internal layer fills microballoon.
A kind of preparation method of the above-mentioned novel environment friendly filler for fluid bed biological film method, which is characterized in that including Following steps：（1）Carbonization rice husk powder, diatomite, calcium hydroxy phosphate, PVC elastomers, polyvinyl alcohol resin, stearic acid, poly- third Acrylamide, foaming agent are uniformly mixed, and said mixture material is added to melt foaming in foam forming machine by high-speed stirred；（2）So After be injected into die for molding at internal layer fill microballoon；（3）A certain number of internal layers filling microballoon is added in outer layer mesh bag, Being fixed to arbitrarily to slide, and carry out heat treatment 5-20 seconds；（4）Finally use ultraviolet light irradiation filler.
Further, the wavelength of ultraviolet light is 254nm, irradiation filler 5-10min.
Advantageous effect of the invention：
The biologic packing material of the present invention also adds a certain amount of calcium hydroxy phosphate, utilizes di other than conventional polymer Calcium, carbonized rice husks etc. are to the compatibility of activated bacterial, to further increase treatment effeciency；Above-mentioned polyvinyl alcohol and PVC elasticity Body plays good wetability in filler, while adding stearic acid and polyacrylamide, the wettability of obtained filler It significantly improves so that biomembrane contacts closer with filler.
Gained filler of the invention is ectonexine structure, and central symmetry and rotational symmetry with group, isotropism degree is high, There is suitable gap between internal microballoon, is conducive to the permeability for improving biologic packing material, that is, improves between biomembrane and water body Mass exchange ability；Passing through outer layer mesh bag and heat treatment simultaneously so that melted between microballoon, between microballoon and mesh bag in contact position Molten bonding is closed, and the mutual mechanical collision between biologic packing material is avoided, and is conducive to the service life cycle for improving substrate.Make biomembrane It is contacted with filler closer.The construction of the present invention so that cause the local high oxidation of inner space, and extend microorganism with it is organic The time of contact of object so that organic matter is by rapid, thorough degradation.
The environment-friendly filler of the present invention, by addition carbonization rice husk powder, diatomite, the biologic inorganics matter such as calcium hydroxy phosphate is more Hole filler has the effect of that collaboration improves biofilm amount and biofilm speed, by the way that foaming agent is added, internal layer filler microballoon is made to have The large aperture of connection promotes microorganism to enter and grows on the surface thereof, and the diameter of internal layer filler microballoon is controlled by addition, is made Obtaining environment-friendly filler integrally has suitable voidage and circulation, ensures that flow can be rapidly performed by exchange, passes through outer layer net Bag and heat treatment, between securing microballoon, sliding over each other between microballoon and mesh bag avoids the biofilm in fierce flow de- It falls.
Specific implementation mode
For ease of more fully understanding the present invention, it is illustrated by the following examples, these examples belong to the protection of the present invention Range, but do not limit the scope of the invention.
Embodiment 1
The preparation method of novel environment friendly filler for fluid bed biological film method, which is characterized in that include the following steps：（1）It will Carbonization rice husk powder, diatomite, it is 200 mesh hereinafter, by 7.5 parts of carbonization rice husk powder that calcium hydroxy phosphate, which is crushed to grain size, diatom 7.5 parts of soil, 7.5 parts of calcium hydroxy phosphate, 50 parts of PVC elastomers, 30 parts of polyvinyl alcohol resin, 4 parts of stearic acid, polyacrylamide 3 Part, 15 parts of isopropyl chloride is uniformly mixed, and said mixture material is added to melt foaming in foam forming machine by high-speed stirred；（2） It is then injected into die for molding and fills microballoon at the internal layer of a diameter of 1.5cm；（3）60 internal layer filling microballoons are added to Mesh diameter is in the outer layer mesh bag of 0.5cm, and it is polypropylene that the material of the outer layer mesh bag, which is thermoplastic resin, and being fixed to cannot Arbitrarily sliding carries out 130 DEG C of heat treatment 10 seconds；（4）Ultraviolet light irradiation filler is finally used, the wavelength of ultraviolet light is 254nm, Irradiate filler 7.5min.
Embodiment 2
The preparation method of novel environment friendly filler for fluid bed biological film method, which is characterized in that include the following steps：（1）It will Carbonization rice husk powder, diatomite, it is 200 mesh hereinafter, by 10 parts of carbonization rice husk powder that calcium hydroxy phosphate, which is crushed to grain size, diatomite 5 parts, 10 parts of calcium hydroxy phosphate, 40 parts of PVC elastomers, 40 parts of polyvinyl alcohol resin, 2 parts of stearic acid, 5 parts of polyacrylamide is different 10 parts of propyl chloride is uniformly mixed, and said mixture material is added to melt foaming in foam forming machine by high-speed stirred；（2）Then It is injected into die for molding and fills microballoon at the internal layer of a diameter of 2cm；（3）It is straight that 20 internal layer filling microballoons are added to mesh Diameter is in the outer layer mesh bag of 0.6cm, and it is polypropylene that the material of the outer layer mesh bag, which is thermoplastic resin, and being fixed to arbitrarily to slide It is dynamic, carry out 120 DEG C of heat treatment 20 seconds；（4）Ultraviolet light irradiation filler is finally used, the wavelength of ultraviolet light is 254nm, and irradiation is filled out Expect 5min.
Embodiment 3
The preparation method of novel environment friendly filler for fluid bed biological film method, which is characterized in that include the following steps：（1）It will Carbonization rice husk powder, diatomite, it is 200 mesh hereinafter, by 5 parts of carbonization rice husk powder that calcium hydroxy phosphate, which is crushed to grain size, diatomite 10 parts, 5 parts of calcium hydroxy phosphate, 60 parts of PVC elastomers, 20 parts of polyvinyl alcohol resin, 6 parts of stearic acid, 1 part of polyacrylamide is different 20 parts of propyl chloride is uniformly mixed, and said mixture material is added to melt foaming in foam forming machine by high-speed stirred；（2）Then It is injected into die for molding and fills microballoon at the internal layer of a diameter of 1cm；（3）100 internal layer filling microballoons are added to mesh In the outer layer mesh bag of a diameter of 0.3cm, it is polypropylene that the material of the outer layer mesh bag, which is thermoplastic resin, and being fixed to cannot be random Sliding carries out 150 DEG C of heat treatment 5 seconds；（4）Ultraviolet light irradiation filler is finally used, the wavelength of ultraviolet light is 254nm, irradiation Filler 10min.
Comparative example 1
It is same as Example 1, it foams in addition to being added without foaming agent.
Comparative example 2
It is same as Example 1, in addition to being added without carbonization rice husk powder.
Comparative example 3
It is same as Example 1, in addition to being added without diatomite.
Comparative example 4
It is same as Example 1, in addition to being added without calcium hydroxy phosphate.
Comparative example 5
It is same as Example 1, in addition to being not added with polyvinyl alcohol resin.
Comparative example 6
It is same as Example 1, in addition to internal layer fills a diameter of 5cm of microballoon.
Comparative example 7
It is same as Example 1, in addition to being not provided with outer layer mesh bag.
Comparative example 8
It is same as Example 1, in addition to without heat treatment.
Same amount of biologic packing material is taken to be seated on thermopnore respectively, COD is 1200mg/L in influent density, bored to expose 1 It, aeration quantity 1m3Bored exposure measures the biofilm biomass of different fillers under conditions of/h after 1 day, 1 day.Gained biofilm filler is existed Hydrophilic middle aeration quantity is 1m3/ h, aeration test remaining biofilm biomass, as a result such as following table after 1 day.
As seen from the above table, environment-friendly filler of the invention, by the way that carbonization rice husk powder, diatomite, calcium hydroxy phosphate etc. is added Biologic inorganic matter porous fillers have the effect of that collaboration improves biofilm amount and biofilm speed, by the way that foaming agent is added, make internal layer Filler microballoon has the large aperture of connection, promotes microorganism to enter and grows on the surface thereof, and internal layer filler is controlled by addition The diameter of microballoon so that environment-friendly filler integrally has suitable voidage and circulation, ensures that flow can be rapidly performed by friendship It changes, by outer layer mesh bag and heat treatment, between securing microballoon, sliding over each other between microballoon and mesh bag avoids in fierce water Biofilm in stream falls off.

Claims (10)

1. a kind of novel environment friendly filler for fluid bed biological film method, which is characterized in that the novel environment friendly filler includes outer Layer mesh bag and internal layer fill microballoon；The internal layer filling microballoon includes 5-10 parts of carbonization rice husk powder, diatomite in parts by mass 5-10 parts, 5-10 parts of calcium hydroxy phosphate, 40-60 parts of PVC elastomers, 20-40 parts of polyvinyl alcohol resin, 2-6 parts of stearic acid, poly- third 1-5 parts of acrylamide, 10-20 parts of foaming agent；The outer layer mesh bag is thermoplastic resin, and it is micro- to be bonded in internal layer filling by heat treatment In ball surface.
2. the novel environment friendly filler according to claim 1 for fluid bed biological film method, which is characterized in that the internal layer A diameter of 1-2cm of microballoon is filled, the mesh diameter of the outer layer mesh bag is 0.3-0.6cm.
3. the novel environment friendly filler according to claim 1 for fluid bed biological film method, which is characterized in that the internal layer It is isopropyl chloride to fill the foaming agent in microballoon.
4. the novel environment friendly filler according to claim 1 for fluid bed biological film method, which is characterized in that the carbonization The powder diameter of rice husk powder, diatomite, calcium hydroxy phosphate is 200 mesh or less.
5. the novel environment friendly filler according to claim 1 for fluid bed biological film method, which is characterized in that the internal layer The specific surface area for filling microballoon is more than 600m2/g。
6. the novel environment friendly filler according to claim 1 for fluid bed biological film method, which is characterized in that the outer layer The thermoplastic resin of mesh bag is at least one of polyethylene, polypropylene, polyvinyl chloride, polystyrene.
7. the novel environment friendly filler according to claim 1 for fluid bed biological film method, which is characterized in that at the heat The treatment temperature of reason bonding is 120-150 DEG C.
8. the novel environment friendly filler according to claim 1 for fluid bed biological film method, which is characterized in that each described Novel environment friendly filler includes that 20-100 internal layer fills microballoon.
9. a kind of preparation method of novel environment friendly filler for fluid bed biological film method according to claim 1-8, It is characterized in that, includes the following steps：（1）Carbonization rice husk powder, diatomite, calcium hydroxy phosphate, PVC elastomers, polyvinyl alcohol tree Fat, stearic acid, polyacrylamide, foaming agent are uniformly mixed, and said mixture material is added in foam forming machine by high-speed stirred Melt foaming；（2）It is then injected into die for molding and fills microballoon at internal layer；（3）A certain number of internal layers filling microballoon is added Enter into outer layer mesh bag, being fixed to arbitrarily to slide, and carry out heat treatment 5-20 seconds；（4）Finally use ultraviolet light irradiation filler.
10. the preparation method of the novel environment friendly filler according to claim 9 for fluid bed biological film method, feature exist In the wavelength of ultraviolet light is 254nm, irradiation filler 5-10min.
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