CN110478981A - A kind of novel biomass foamed material and preparation method thereof for sewage treatment - Google Patents
A kind of novel biomass foamed material and preparation method thereof for sewage treatment Download PDFInfo
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- CN110478981A CN110478981A CN201910799327.2A CN201910799327A CN110478981A CN 110478981 A CN110478981 A CN 110478981A CN 201910799327 A CN201910799327 A CN 201910799327A CN 110478981 A CN110478981 A CN 110478981A
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- sewage treatment
- foamed material
- biomass
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
- B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
- B01D39/1692—Other shaped material, e.g. perforated or porous sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/02—Types of fibres, filaments or particles, self-supporting or supported materials
- B01D2239/0283—Types of fibres, filaments or particles, self-supporting or supported materials comprising filter materials made from waste or recycled materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/10—Filtering material manufacturing
Abstract
The novel biomass foamed material and preparation method thereof that the invention discloses a kind of for sewage treatment, it is made of the raw material of following mass fraction: 10 parts of glycerine, 40 parts of polyethylene glycol, 60 parts of biomass straw, 40-60 parts of polyester polyol, 8-12 parts of polyisocyanates, 1-2 parts of deionized water, 0.1-0.3 parts of organotin, 0.2-0.4 parts of tertiary amine, 0.4-0.6 parts of pore-creating agent.The present invention is using the processed straw of surface liquefaction, as skeleton, foam is grown on its surface, it is prepared for can be used for the novel biomass foamed material of sewage treatment by way of layer upon layer, such material not only has excellent sewage water filtration performance, raw material sources are renewable biological source, low in cost, product practical feature of biodegradable and suitable popularization after being on active service.
Description
Technical field
The invention belongs to technical field of sewage more particularly to a kind of novel biomass foam materials for sewage treatment
Material and preparation method thereof.
Background technique
With global science and technology, economic rapid development, global urbanization trend is caused to be getting faster, a large amount of population collection
A large amount of domestic water is needed, and then the discharge amount of sewage is also with soaring.Common urban wastewater treatment method is Manual moist
The technologies such as ground, ecological filter, activated sludge and circulated aeration tank processing.But from the point of view of economic and ecology, exist much not
Foot place, if you need to collect sewage by pipeline, so that equipment investment, operational management and maintenance expense are high；Processing effect
Fruit is not satisfactory, and the treatment effects such as TP and COD are lower；Useful element (such as K, Ca) and nutritional ingredient are lost in vain in sewage
Cause resources loss and form pollution source etc..Current relatively advanced technical method is membrane technology, by micro-filtration and
The method filter sewage of ultrafiltration, not only filter efficiency is high, can also be to some chemokines and particle progress biology in sewage
Degradation, but the production technology of filter membrane material is fine, and use cost is high, hinders membrane technology in the dirt of less developed country and area
Popularization and application in terms of water process.
Polyurethane foamed material have filter efficiency is high, multiple functions body can be loaded and as novel filter material in dirt
Numerous research and application are carried out in terms of water process.It is parent as CN1353184A reports a kind of polyurethane foam, passes through
Foam surface functionalization makes it have the carrier of reactivity, hydrophily and permeability cantilever design；CN1478891A reports one
Kind active carbon and the compound biological fixing carrier of polyurethane foam, in terms of sewage treatment；Patent CN101619310A report
Road nanometer convex-concave stick compounded hydrophilic urethane foam microorganisms fixation support.Although above-mentioned patent is in polyurethane foam table
It is obviously improved in terms of the functionalization of face, but its preparation process is complicated, higher cost, limits further application.
The biomass straws such as rice, wheat and sorghum are agricultural product accessory products, have abundance, renewable and additional
It is worth low feature, is often widely used as the fields such as animal feed, basic fuel and building materials, in recent years, biomass straw is through changing
Property after, deep processing be high value added product become new hot technology, such as by biomass straw preparation polyalcohol, for making
Standby polyurethane foam, but biomass straw product processing technology is complicated, easily causes environmental hazard, while the product of deep processing is in property
Similar product on energy, price with other sources does not have competitive advantage, becomes foamed filter sewage disposal technology in practical application
The main problem faced.
Summary of the invention
The object of the invention is to remedy the disadvantages of known techniques, provides a kind of novel biomass for sewage treatment
Foamed material and preparation method thereof.
In order to achieve the above purpose, the present invention the following technical schemes are provided:
A kind of novel biomass foamed material for sewage treatment, the biomass foamed material by following mass fraction original
Material is made: 10 parts of glycerine, 40 parts of polyethylene glycol, 60 parts of biomass straw, 40-60 parts of polyester polyol, polyisocyanates 8-
12 parts, 1-2 parts of deionized water, 0.1-0.3 parts of organotin, 0.2-0.4 parts of tertiary amine, 0.4-0.6 parts of pore-creating agent.
Further, any one of the biomass straw in rice, sorghum, corn and wheat stalk.
Further, the polyester polyol is selected from the polyethylene glycol adipate (PEA) that molecular weight is 2000, gathers oneself two
Any one in sour butanediol diester (PBA).
Further, the polyisocyanates is selected from liquefaction '-diphenylmethane diisocyanate (liquefied mdi), toluene diisocyanate
Any one in acid esters (TDI).
Further, the organotin is dibutyl tin dilaurate.
Further, the tertiary amine is triethylene diamine.
Further, the pore-creating agent is methyl-silicone oil.
It is another object of the present invention to provide a kind of novel biomass foams for being used for sewage treatment as described above
The preparation method of material, the specific steps are as follows: stir with 60 parts of biomass straw 10 parts of glycerine, 40 parts of polyethylene glycol equal
It is even, 165 DEG C of temperature are controlled, 2 hours are kept the temperature, the biomass straw of surface hydroxylation is made, then by polyester polyol 40-60
Part, 8-12 parts of polyisocyanates, 1-2 parts of deionized water, 0.1-0.3 parts of organotin, 0.2-0.4 parts of tertiary amine, pore-creating agent 0.4-0.6
Part, it is mixed evenly and is sprayed on hydroxylated biological straw surface, and grow on its surface for the novel of sewage treatment
Biomass foamed material.
Further, the poly- second that the inorganic agent of the biomass straw surface hydroxylation is glycerine and molecular weight is 400
Glycol, and the mass ratio of two kinds of substances is 1:4, the ratio of inorganic agent and biomass straw is 1:1.2.
The invention has the advantages that
(1) it is prepared for can be used for the novel biomass foamed material of sewage treatment by way of layer upon layer, such structure can
Assign the preferable styling of material.
(2) material provided by the invention not only has excellent sewage water filtration performance, and raw material sources are recyclable organism money
Source, low in cost, simple process.
(3) material provided by the invention is biodegradable after military service expires, and avoids the secondary pollution of waste, preferably promotes
It is practical.
Detailed description of the invention
Fig. 1 show the infrared spectrum that the semi-liquefied stalk of the preparation of embodiment 1 compares before and after the processing.
Specific embodiment
Below in conjunction with specific example, technical scheme is described further:
Embodiment 1
(1) the semi-liquefied processing of stalk
As mass fraction: with 60 parts of rice straw stirring by 10 parts of glycerine, 40 parts of polyethylene glycol that molecular weight is 400
It is even, 165 DEG C of temperature are controlled, 2 hours are kept the temperature, the biomass straw of surface hydroxylation is made；Stalk passes through before and after the processing
Infrared spectrum is referring to attached drawing 1.
(2) preparation of absorbent foam material
40 parts of polyethylene glycol adipate (PEA) for being 2000 by molecular weight, 8 parts of toluene di-isocyanate(TDI) (TDI), deionized water
It 2 parts, 0.1 part of organotin, 0.2 part of tertiary amine, 0.4 part of methyl-silicone oil, is mixed evenly and is sprayed on hydroxylated biological straw table
The novel biomass foamed material for sewage treatment is made in face.
Referring to attached drawing 1, it is the infrared spectrum that semi-liquefied stalk manufactured in the present embodiment compares before and after the processing.Wherein without
The infrared figure of stalk for crossing processing is Un-modification, treated the infrared figure of stalk is S-modification, at comparison
The infared spectrum of front and back is managed it is found that 3200-3500cm-1 is attributed to the-OH group stretching vibration of cellulose in stalk, it is untreated
The CH being attributed at the 2868cm-1 of sample in aliphatic compound3、CH2And CH stretching vibration peak, disappear after surface treatment
It loses, while the band intensity that-OH is belonged to after stalk processing significantly increases, and shows that cellulose is decomposed in stalk ,-OH quantity increases
Add；The absorption peak of 1643cm-1 characterization absorption water, after processing, the absorption water characteristic peak at this disappears；1460cm-1 is stalk
In lignin-CH3Stretching vibration absworption peak, 1340cm-1 are the-CH group stretching vibration absworption peak in lignin,
1250cm-1 is C=O group stretching vibration absworption peak in lignin, these group characteristic peaks disappear after surface treated, after processing
Stalk spectrogram at 1630cm-1 be the antisymmetric stretching vibration of organic carboxylate COO-group absorption peak, show wooden
Element is by preferable degradation treatment；1100-970cm-1 characterize the absorption peak of C-0 stretching vibration in cellulose and hemicellulose, warp
Postpeak remitted its fury is handled, illustrates content of cellulose reduction；It is cellulose at 600cm-1, the hydroxyl vibration in hemicellulose is inhaled
Peak is received, enhanced strength after surface treated characterizes stalk surface major part group after processing and is converted into-OH, meets synthesis
Requirement of the polyurethane foam to raw material.
Embodiment 2
(1) the semi-liquefied processing of stalk
As mass fraction: with 60 parts of cornstalk stirring by 10 parts of glycerine, 40 parts of polyethylene glycol that molecular weight is 400
It is even, 165 DEG C of temperature are controlled, 2 hours are kept the temperature, the biomass straw of surface hydroxylation is made；
(2) preparation of absorbent foam material
40 parts of polyethylene glycol adipate (PEA) for being 2000 by molecular weight, 8 parts of toluene di-isocyanate(TDI) (TDI), deionized water
It 2 parts, 0.1 part of organotin, 0.2 part of tertiary amine, 0.4 part of methyl-silicone oil, is mixed evenly and is sprayed on hydroxylated biological straw table
The novel biomass foamed material for sewage treatment is made in face.
Embodiment 3
(1) the semi-liquefied processing of stalk
As mass fraction: with 60 parts of wheat-straw stirring by 10 parts of glycerine, 40 parts of polyethylene glycol that molecular weight is 400
It is even, 165 DEG C of temperature are controlled, 2 hours are kept the temperature, the biomass straw of surface hydroxylation is made；
(2) preparation of absorbent foam material
40 parts of polyethylene glycol adipate (PEA) for being 2000 by molecular weight, 8 parts of toluene di-isocyanate(TDI) (TDI), deionized water
It 2 parts, 0.1 part of organotin, 0.2 part of tertiary amine, 0.4 part of methyl-silicone oil, is mixed evenly and is sprayed on hydroxylated biological straw table
The novel biomass foamed material for sewage treatment is made in face.
Embodiment 4
(1) the semi-liquefied processing of stalk
As mass fraction: with 60 parts of sorghum stalk stirring by 10 parts of glycerine, 40 parts of polyethylene glycol that molecular weight is 400
It is even, 165 DEG C of temperature are controlled, 2 hours are kept the temperature, the biomass straw of surface hydroxylation is made；
(2) preparation of absorbent foam material
40 parts of polyethylene glycol adipate (PEA) for being 2000 by molecular weight, 8 parts of toluene di-isocyanate(TDI) (TDI), deionized water
It 2 parts, 0.1 part of organotin, 0.2 part of tertiary amine, 0.4 part of methyl-silicone oil, is mixed evenly and is sprayed on hydroxylated biological straw table
The novel biomass foamed material for sewage treatment is made in face.
Embodiment 5
(1) the semi-liquefied processing of stalk
As mass fraction: with 60 parts of rice stalk stirring by 10 parts of glycerine, 40 parts of polyethylene glycol that molecular weight is 400
It is even, 165 DEG C of temperature are controlled, 2 hours are kept the temperature, the biomass straw of surface hydroxylation is made；
(2) preparation of absorbent foam material
40 parts of polybutyleneadipate diester (PBA) for being 2000 by molecular weight, liquefaction '-diphenylmethane diisocyanate (liquefaction
MDI it) 10 parts, 2 parts of deionized water, 0.2 part of organotin, 0.2 part of tertiary amine, 0.4 part of methyl-silicone oil, is mixed evenly and is sprayed on hydroxyl
The novel biomass foamed material for sewage treatment is made in the biological straw surface of base.
Embodiment 6
(1) the semi-liquefied processing of stalk
As mass fraction: with 60 parts of rice stalk stirring by 10 parts of glycerine, 40 parts of polyethylene glycol that molecular weight is 400
It is even, 165 DEG C of temperature are controlled, 2 hours are kept the temperature, the biomass straw of surface hydroxylation is made；
(2) preparation of absorbent foam material
40 parts of polybutyleneadipate diester (PBA) for being 2000 by molecular weight, liquefaction '-diphenylmethane diisocyanate (liquefaction
MDI) 10 parts, 2 parts of deionized water, 0.2 part of organotin, 0.3 part of triethylene diamine, 0.6 part of methyl-silicone oil, spray is mixed evenly
It is coated in hydroxylated biological straw surface, the novel biomass foamed material for sewage treatment is made.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of novel biomass foamed material for sewage treatment, which is characterized in that the biomass foamed material by with
The raw material of lower mass fraction is made: 10 parts of glycerine, 40 parts of polyethylene glycol, 60 parts of biomass straw, polyester polyol 40-60
Part, 8-12 parts of polyisocyanates, 1-2 parts of deionized water, 0.1-0.3 parts of organotin, 0.2-0.4 parts of tertiary amine, pore-creating agent 0.4-0.6
Part.
2. the novel biomass foamed material according to claim 1 for sewage treatment, which is characterized in that the biology
Any one of matter stalk in rice, sorghum, corn and wheat stalk.
3. the novel biomass foamed material according to claim 1 for sewage treatment, which is characterized in that the polyester
Polyalcohol is selected from the polyethylene glycol adipate that molecular weight is 2000, any one in polybutyleneadipate diester.
4. the novel biomass foamed material according to claim 1 for sewage treatment, which is characterized in that the polyisocyanate
Any one of cyanate in liquefaction '-diphenylmethane diisocyanate, toluene di-isocyanate(TDI).
5. the novel biomass foamed material according to claim 1 for sewage treatment, which is characterized in that described organic
Tin is dibutyl tin dilaurate.
6. the novel biomass foamed material according to claim 1 for sewage treatment, which is characterized in that the tertiary amine
For triethylene diamine.
7. the novel biomass foamed material according to claim 1 for sewage treatment, which is characterized in that the aperture
Agent is methyl-silicone oil.
8. a kind of preparation side of such as described in any item novel biomass foamed materials for sewage treatment of claim 1-7
Method, which is characterized in that specific step is as follows: 10 parts of glycerine, 40 parts of polyethylene glycol are stirred with 60 parts of biomass straw equal
It is even, 165 DEG C of temperature are controlled, 2 hours are kept the temperature, the biomass straw of surface hydroxylation is made, then by polyester polyol 40-60
Part, 8-12 parts of polyisocyanates, 1-2 parts of deionized water, 0.1-0.3 parts of organotin, 0.2-0.4 parts of tertiary amine, pore-creating agent 0.4-0.6
Part, it is mixed evenly and is sprayed on hydroxylated biological straw surface, and grow on its surface for the novel of sewage treatment
Biomass foamed material.
9. the preparation method of the novel biomass foamed material according to claim 8 for sewage treatment, feature exist
In, the polyethylene glycol that the inorganic agent of the biomass straw surface hydroxylation is glycerine and molecular weight is 400, and two kinds of substances
Mass ratio be 1:4, the ratio of inorganic agent and biomass straw is 1:1.2.
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| CN201910799327.2A CN110478981A (en) | 2019-08-28 | 2019-08-28 | A kind of novel biomass foamed material and preparation method thereof for sewage treatment |
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| CN201910799327.2A CN110478981A (en) | 2019-08-28 | 2019-08-28 | A kind of novel biomass foamed material and preparation method thereof for sewage treatment |
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