CN104478070B - A kind of clay carrier for sewage disposal and preparation method thereof - Google Patents
A kind of clay carrier for sewage disposal and preparation method thereof Download PDFInfo
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- CN104478070B CN104478070B CN201410674664.6A CN201410674664A CN104478070B CN 104478070 B CN104478070 B CN 104478070B CN 201410674664 A CN201410674664 A CN 201410674664A CN 104478070 B CN104478070 B CN 104478070B
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- sewage disposal
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- clay carrier
- sintering
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/60—Production of ceramic materials or ceramic elements, e.g. substitution of clay or shale by alternative raw materials, e.g. ashes
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- Biological Treatment Of Waste Water (AREA)
- Immobilizing And Processing Of Enzymes And Microorganisms (AREA)
Abstract
The present invention relates to a kind of clay carrier for sewage disposal and preparation method thereof, it is characterized in that: configured by mass percentage by cast waste sand, loess, lower water slurry, mix by raw material, roll, cure, be molded, be dried, sinter, obtain finished product by screening, wherein quality of material percentage is: cast waste sand is 55～65%, loess is 30～40%, and lower water slurry is 4～6%.Its method is to manufacture gained by maturation stage, formative stage, drying stage, the technique in sintering stage.The present invention uses the pollutant such as cast waste sand, lower water slurry to carry out recycle and reuse, product be mainly composed of silicate, be conducive in neutrality in water microorganism attachment increment.The raw material of the present invention is simple and easy to get, and technological standards is easily controlled.
Description
Technical field
The invention belongs to sewage treatment area, particularly relate to a kind of clay carrier for sewage disposal and preparation method thereof.
Background technology
Along with the minimizing of water resource, sewage disposal increasingly comes into one's own.Modern sewage disposal uses biological method mostly, profit
By the capacity of decomposition of microorganism, the organic principle in sewage is degraded, purifying water body.Microorganism treating sewage is utilized to be accomplished by micro-
Carrier, on carrier, is placed in sewage by biological attachment, can be permanently effective utilize microorganism.In early days for sewage disposal
Microbe carrier great majority be sodium alginate, carragheen, polyvinyl alcohol isogel, due to the biochemistry of this kind of material stablize poor,
Mechanical strength is low and relatively costly, and industrial applications is subject to certain restrictions.Subsequently, people begin one's study pottery of good performance
Grain carrier replaces it, but, common ceramsite carrier is only by the biofilm effect of rough surface and physisorption and microorganism
Being combined, its active force is more weak, impact resistance poor performance, and biomembrane easily comes off in backwash process, thus have impact on it
Service life and treatment effect.
Existing microbe carrier is to utilize natural rock, artificial plastic cement to be formed a bit, and surface area is little and imporous microorganism
Carrier.Moreover, the affinity interaction between carrier and microorganism is little, adhere to shortcoming that superincumbent microbes falls off,
Owing to often falling off, microorganism cultivates the shortcoming on required time.Form microbe carrier required time long, turn out
Microorganism be susceptible to come off cause that sewage treating efficiency is low, process after many defects such as water capacity deterioration the most again.
The patent of invention of Patent No. CN201210156358.4 disclose a kind of Multifunctional suspension float carrier for sewage disposal and
Its preparation method, its carrier be the waste residue to produce aluminium polychloride, quick lime, flyash, bonding agent as raw material, blended,
Obtain after curing, drying, granulation, roasting, each step of pulverizing.Owing to the quantities of sewage disposal now is very big, especially
It is city domestic sewage, although the patent provides a kind of by the relatively inexpensive raw material being easy to get production carrier, but the demand of carrier
Amount is also the hugest, therefore can control quality and the price thereof of microbe carrier, is particularly important in sewage disposal.
Summary of the invention
For above-mentioned the deficiencies in the prior art, the technical problem to be solved in the present invention is to provide a kind of cheap and easy to get, easy to control the quality,
Clay carrier for sewage disposal of standard and preparation method thereof can be reached.
For solving above-mentioned technical problem, technical scheme is as follows: a kind of clay carrier for sewage disposal, its feature
It is: configured by mass percentage by cast waste sand, loess, lower water slurry, mixed by raw material, roll, cure, be molded,
Being dried, sinter, obtain finished product by screening, wherein quality of material percentage is: cast waste sand is 55～65%, and loess is 30～40%,
Lower water slurry is 4～6%.
Optimum proportioning value at present, described quality of material percentage is cast waste sand 60%, loess 35%, lower water slurry 5%.
The concrete preparation method producing above-mentioned clay carrier is as follows:
A. maturation stage
Cast waste sand, loess, lower water slurry are mixed according to a certain percentage, mixture is ground in roller pulverizer
It is pressed into little particle, little particle is carried out spraying treatment and makes the moisture of mixture account for the 10%～20% of gross weight, preferred accounting
It is 15%, after moisture regulation, mixture is carried out curing in 24 hours.When spraying, the effect in order to make moisture regulate more is managed
Think that suggestion is uniformly sprayed at the top layer of mixture.After maturation stage, moisture can penetrate into each several part uniformly, so in shaping
During can maintain the shape needed for clay carrier, be dried, sintering process product portion is internal while will not rupturing can be true
Protect certain porosity.
B. formative stage
Be fabricated to required size and shape according to application target difference after curing, after curing, mixture is carried out extrusion molding, shaping,
Cutting technique, is fabricated to required size and shape according to application target difference；Forming process can use squeezing according to purposes
The methods such as shaping, extrusion moulding, annular shaped.
C. drying stage
Clay carrier after shaping, under the conditions of 20 DEG C～100 DEG C, keeps moisture 1～5%, is dried 0～24 hour.In order to
Doing one's utmost to reduce production cost, meet the regulation of national energy-saving policy simultaneously, the heat used is the waste heat after sintering process terminates.
D. the stage is sintered
After drying it is slowly heated up to 600～1100 DEG C, sintering 3～24 hours；Make superficial density, porosity, chemically-resistant
The physical properties such as medicine performance, compressive strength increase.If clay carrier there will be crackle during steep temperature rise, this is to cause
The main cause that substandard products occur.Sintering time of slowly heating in stage described in production is 2～11 hours.Preferred described sintering
The sintering temperature in stage is 900 DEG C.Sintered laggard row filter, i.e. available required carrier.
In process of production, described preparation method produces stink in drying stage, sintering stage, and described stink can pass through deodorizing
Equipment utilization biodegradation method is removed.
Technological parameter
The microbe carrier of the present invention is by using cast waste sand, loess, lower water slurry to process, and raw material is simple and easy to get,
Processing step is easily controlled, thus the carrier prepared can reach quality standards.
Accompanying drawing explanation
Fig. 1 is the process chart of the present invention.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the summary of the invention of the present invention is described in further detail.Should be understood that the reality of the present invention
Execute example to be served only for illustrating the present invention without limiting the present invention, in the case of without departing from the technology of the present invention thought, general according to this area
Logical technological know-how and customary means, the various replacements made and change, all should be included within the scope of the invention.
Prepare cast waste sand respectively, lower water slurry, loess are carried out pulverizing removes foreign material, according to proper proportion (cast waste sand
55%～65%, loess 30%～40%, lower water slurry 4%～6%) carry out stage of proportioning.
After cast waste sand, loess, lower water slurry mix according to a certain percentage, mixture is ground in roller pulverizer
The raw little particle of pressure, the mixture after pulverizing carries out spraying treatment makes the moisture of mixture account for the 10%～20% of gross weight, water
After dividing content regulation, mixture is carried out the maturation stage of curing in 24 hours；It is fabricated to required according to application target difference after curing
Size and shape, mixture is carried out extrusion molding, be molded, the formative stage of the clay carrier of the technique such as cutting；Form clay carrier
After at normal temperatures under the conditions of (20 DEG C～100 DEG C) keep moisture 1%～5%, carry out 24 hours dry drying stages；Dry
Placing it in the sintering stage carrying out about 9 hours under conditions of 900 DEG C～1100 DEG C after constipation bundle, this process should slowly rise
Temperature avoids goods to occur crackle in sintering process.
The material proportioning stage:
Prepare cast waste sand respectively, lower water slurry, loess remove foreign material after being carried out pulverizing vibrations, according to proper proportion (casting
Make antiquated sand 55%～65%, loess 30%～40%, lower water slurry 4%～6%) mix, the most optimal proportioning be cast waste sand 60%,
Loess 35%, lower water slurry 5%.
Maturation stage:
After cast waste sand, loess, lower water slurry mix according to a certain percentage, mixture is ground in roller pulverizer
The raw little particle of pressure, the mixture after pulverizing carries out spraying treatment makes the moisture of mixture account for the 15% of gross weight, and moisture contains
After amount regulation, mixture is carried out curing in 24 hours.When spraying, the effect in order to make moisture regulate more preferably advises uniformly spraying
Top layer at mixture.After maturation stage, moisture can penetrate into each several part uniformly, so can maintain in forming process
Shape needed for clay carrier, dry, sintering process product portion is internal while will not rupturing may insure that certain porosity.
Formative stage:
Be fabricated to required size and shape according to application target difference after curing, mixture is carried out extrusion molding, be molded, cutting etc.
Technique, can use the methods such as squeezing shaping, extrusion moulding, annular shaped according to purposes in forming process.
Drying stage:
Clay carrier after shaping at normal temperatures under the conditions of (50 DEG C) optimum value keep moisture 1%～5%, carry out 24 hours.
The heat that dry run uses is the waste heat after sintering process terminates.
The sintering stage:
It is dried after being carried out slowly heating for about 9 hours after terminating and reaches 900 DEG C, then sinter 9 under conditions of 900 DEG C
Hour, make the physical properties such as superficial density, porosity, chemical resistance, compressive strength increase.If drastically risen
During temperature, clay carrier there will be crackle, and this is the main cause causing substandard products to occur.
The waste heat remained after being terminated in the sintering stage reclaims, and uses at drying stage.
Product is screened after terminating by the sintering stage, picks out damaged product, substandard products, by certified products sorting placement.Be dried,
The stink that the sintering stage produces is utilized biodegradable method to remove by deodorizing device.
The clay carrier characteristic produced after the above stage is as follows:
Claims (9)
1. the clay carrier for sewage disposal, it is characterised in that: by cast waste sand, loess, lower water slurry by mass percentage
Configuration, is mixed by raw material, roll, cures, is molded, is dried, sinters, is obtained by screening finished product, wherein quality of material percentage
Than being:
Cast waste sand 55～65%
Loess 30～40%
Lower water slurry 4～6%.
A kind of clay carrier for sewage disposal the most according to claim 1, it is characterised in that: described quality of material percentage
Ratio is cast waste sand 60%, loess 35%, lower water slurry 5%.
3. for preparing the preparation method of a kind of clay carrier for sewage disposal described in claim 1 or 2, it is characterised in that:
Preparation method is as follows:
A. maturation stage
Cast waste sand, loess, lower water slurry are mixed according to a certain percentage, mixture is rolled in roller pulverizer
Little particle, carries out little particle spraying treatment and makes the moisture of mixture account for the 10%～20% of gross weight, cure 24 hours；
B. formative stage
After curing, mixture is carried out extrusion molding, shaping, cutting technique, be fabricated to required size and shape according to application target difference；
C. drying stage
Clay carrier after shaping, under the conditions of 20 DEG C～100 DEG C, keeps moisture 1～5%, is dried 0～24 hour；
D. the stage is sintered
Dried it is slowly heated 2～11 hours to 600～1100 DEG C, sintering 3～24 hours, sinter laggard row filter,
?.
The preparation method of a kind of clay carrier for sewage disposal the most according to claim 3, it is characterised in that: described system
Preparation Method produces stink in drying stage, sintering stage, and described stink utilizes biodegradation method to remove by deodorizing device.
The preparation method of a kind of clay carrier for sewage disposal the most according to claim 3, it is characterised in that: forming process
Middle can employing according to purposes squeezes shaping, extrusion moulding or annular shaped method.
The preparation method of a kind of clay carrier for sewage disposal the most according to claim 3, it is characterised in that: described dry
The heat that stage is used is the waste heat after sintering process terminates.
The preparation method of a kind of clay carrier for sewage disposal the most according to claim 3, it is characterised in that: described curing
After stage little particle carries out spraying treatment, the moisture of mixture accounts for the 15% of gross weight.
The preparation method of a kind of clay carrier for sewage disposal the most according to claim 3, it is characterised in that: described dry
The temperature in stage is 50 DEG C, and drying time is 24 hours.
The preparation method of a kind of clay carrier for sewage disposal the most according to claim 3, it is characterised in that: described sintering
The time that stage slowly heats is 9 hours, and sintering temperature is 900 DEG C, and sintering time is 9 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410674664.6A CN104478070B (en) | 2014-11-21 | 2014-11-21 | A kind of clay carrier for sewage disposal and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410674664.6A CN104478070B (en) | 2014-11-21 | 2014-11-21 | A kind of clay carrier for sewage disposal and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104478070A CN104478070A (en) | 2015-04-01 |
| CN104478070B true CN104478070B (en) | 2016-08-24 |
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| CN201410674664.6A Expired - Fee Related CN104478070B (en) | 2014-11-21 | 2014-11-21 | A kind of clay carrier for sewage disposal and preparation method thereof |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106925206A (en) * | 2015-12-29 | 2017-07-07 | 中国人民解放军沈阳军区司令部工程科研设计所 | A kind of method that utilization loess additive improves clay adsorption performance |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7166221B1 (en) * | 2002-06-24 | 2007-01-23 | William I. Young | Oil digesting microbe-plastic foam system |
| CN102240536B (en) * | 2010-05-12 | 2013-02-20 | 中国科学院生态环境研究中心 | Preparation method of red mud coated adsorption material for removing inorganic pollutants |
| CN102659238B (en) * | 2012-05-18 | 2013-06-12 | 山东化友化学有限公司 | Multifunctional suspended carrier for sewage treatment and preparation method of multifunctional suspended carrier |
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Granted publication date: 20160824 Termination date: 20171121 |