CN107487836A - A kind of preparation method of city sludge bio-carrier - Google Patents
A kind of preparation method of city sludge bio-carrier Download PDFInfo
- Publication number
- CN107487836A CN107487836A CN201710739164.XA CN201710739164A CN107487836A CN 107487836 A CN107487836 A CN 107487836A CN 201710739164 A CN201710739164 A CN 201710739164A CN 107487836 A CN107487836 A CN 107487836A
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- China
- Prior art keywords
- sludge
- carrier
- bio
- curable type
- city
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
- 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
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
The present invention relates to a kind of preparation method of city sludge bio-carrier, it is 75 ~ 80% that sewage treatment plant residual active sludge is dehydrated to moisture content by this method first, then by 5 ~ 10% addition pore formers of dewatered sludge weight, plastotype and curable type is carried out using molding machine, obtain the sludge after curable type；Sludge after the curable type is handled at a temperature of being placed in 800 ~ 1200 DEG C, and room temperature is cooled to after 5 ~ 10min, is finally crossed 5 ~ 25mm sieves, is produced city sludge bio-carrier.Cost of the present invention is cheap, easy to implement, and products obtained therefrom has the characteristics that specific surface area is big, porosity is high, rough surface, light, good hydrophilic property, biomembrane easily adhere to.
Description
Technical field
The present invention relates to bio-carrier production technical field, more particularly to a kind of preparation side of city sludge bio-carrier
Method.
Background technology
Bio-carrier is the core of biomembrance process sewage treatment process, and its performance can be directly affected and is attached on carrier
Biofilm biomass, and then influence sewage treatment effect.Bio-carrier uses the difference of raw material according to it, can be divided into inorganic carrier
With organic polymer carrier.Conventional inorganic carrier mainly has：Haydite, coke, quartz sand, activated carbon, expansion alumino-silicate etc.,
Conventional organic polymer carrier mainly has：Polystyrene, polyvinyl chloride, polypropylene PE, various types of resins, plastics (including it is all kinds of
Foamed material), fiber etc..Due to the difference of support shapes composition, there is also larger difference for the performance of bio-carrier.It is although inorganic
Biological carrier materials are extensive, are easy to get, and stable with higher mechanical strength and stable chemical property, but density be present
Greatly, the shortcomings of high energy consumption；And although organic-biological carrier density is small, cost of material is higher, and carrier inside hole easily blocks.
With the development of bio-carrier manufacturing technology, be developed it is a variety of with quartz sand, haydite, clinker, activated carbon,
The inorganic material such as coal are as raw material, by adding the additives such as some pore creating materials, adhesive, then by crushing, mix, granulation,
Dry and the mode such as sintering is handled and manufactured new bio carrier, the density that these carriers overcome inorganic carrier is high,
The defects of specific surface area is small, porosity is low.
Therefore new bio carrier should manufacture craft be simple, low manufacture cost for preparing, while should also have larger
Specific surface area and porosity, it is light, surface is rough, hydrophily, certain mechanical strength and stable physico-chemical property, be not easy point
Solution and nonhazardous acts on, it is cheap, the features such as wide material sources.
The content of the invention
The technical problems to be solved by the invention are to provide the city sludge bio-carrier that a kind of cost is cheap, easy to implement
Preparation method.
A kind of to solve the above problems, preparation method of city sludge bio-carrier of the present invention, it is characterised in that：
It is 75 ~ 80% that sewage treatment plant residual active sludge, which is dehydrated to moisture content, first, is then added by the 5 ~ 10% of dewatered sludge weight
Add pore former, plastotype and curable type are carried out using molding machine, obtain the sludge after curable type；Sludge after the curable type is placed in 800 ~
Handled at a temperature of 1200 DEG C, room temperature is cooled to after 5 ~ 10min, finally crossed 5 ~ 25mm sieves, produce city sludge bio-carrier.
The pore former refers to the mixture that ferric trichloride and five Al 2 Os mix in any proportion.
The present invention has advantages below compared with prior art：
1st, raw material of the present invention uses the residual active sludge of municipal sewage plant, wide material sources, is easily obtained, both solves dirt
The Treatment of Sludge problem of water treatment plant, also open an effective way for city sludge disposal of resources.
2nd, the present invention utilizes the materialization feature of city sludge in itself, and a kind of new bio carrier is made by certain processing,
Preparation method is simple and easy, low manufacture cost.
3rd, products obtained therefrom property stabilization of the present invention, profile are irregular particle shape, and particle diameter can be selected according to being actually needed, table
Face is concavo-convex and has a large amount of holes, has that specific surface area is big, porosity is high, rough surface, light（Bulk density is 350 ~ 400kg/
m3）, good hydrophilic property, biomembrane easily adhere to（Per m3Biofilm biomass is up to 3.5 ~ 5kg）The features such as.
4th, products obtained therefrom of the present invention is in terms of specific surface area, porosity, bulk density, hydrophily, biomembrane adhesion property
It is the ideal material of current Wetland Substrate filler better than matrix fills such as gravels.
Embodiment
A kind of preparation method of city sludge bio-carrier of embodiment 1：Sewage treatment plant residual active sludge is taken off first
Water to moisture content is 75%, then adds pore former by the 5% of dewatered sludge weight, carries out plastotype and curable type using molding machine, obtains
Sludge after to curable type；Sludge after curable type is handled at a temperature of being placed in 800 DEG C, room temperature is cooled to after 10min, finally mistake
5mm is sieved, and produces city sludge bio-carrier.
A kind of preparation method of city sludge bio-carrier of embodiment 2：Sewage treatment plant residual active sludge is taken off first
Water to moisture content is 80%, then adds pore former by the 10% of dewatered sludge weight, carries out plastotype and curable type using molding machine, obtains
Sludge after to curable type；Sludge after curable type is handled at a temperature of being placed in 1200 DEG C, room temperature is cooled to after 5min, finally mistake
25mm is sieved, and produces city sludge bio-carrier.
A kind of preparation method of city sludge bio-carrier of embodiment 3：Sewage treatment plant residual active sludge is taken off first
Water to moisture content is 78%, then adds pore former by the 8% of dewatered sludge weight, carries out plastotype and curable type using molding machine, obtains
Sludge after to curable type；Sludge after curable type is handled at a temperature of being placed in 1000 DEG C, room temperature is cooled to after 8min, finally mistake
15mm is sieved, and produces city sludge bio-carrier.
In above-described embodiment 1 ~ 3, it is mixed that pore former refers to ferric trichloride and five Al 2 Os mix in any proportion
Compound.
Claims (2)
- A kind of 1. preparation method of city sludge bio-carrier, it is characterised in that：First by sewage treatment plant residual active sludge Dehydration to moisture content is 75 ~ 80%, then adds pore former by the 5 ~ 10% of dewatered sludge weight, and plastotype is carried out simultaneously using molding machine Curable type, obtain the sludge after curable type；Sludge after the curable type is handled at a temperature of being placed in 800 ~ 1200 DEG C, after 5 ~ 10min Room temperature is cooled to, 5 ~ 25mm sieves is finally crossed, produces city sludge bio-carrier.
- A kind of 2. preparation method of city sludge bio-carrier as claimed in claim 1, it is characterised in that：The pore former is Refer to the mixture that ferric trichloride and five Al 2 Os mix in any proportion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710739164.XA CN107487836A (en) | 2017-08-25 | 2017-08-25 | A kind of preparation method of city sludge bio-carrier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710739164.XA CN107487836A (en) | 2017-08-25 | 2017-08-25 | A kind of preparation method of city sludge bio-carrier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107487836A true CN107487836A (en) | 2017-12-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710739164.XA Pending CN107487836A (en) | 2017-08-25 | 2017-08-25 | A kind of preparation method of city sludge bio-carrier |
Country Status (1)
| Country | Link |
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| CN (1) | CN107487836A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE1850094A1 (en) * | 2018-01-29 | 2019-07-30 | Veolia Water Solutions & Tech | Biofilm carrier media in moving bed biofilm reactor processes |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101798140A (en) * | 2010-03-26 | 2010-08-11 | 河海大学 | Filter material for biological aerated filter and preparation method thereof |
| CN102515834A (en) * | 2011-11-11 | 2012-06-27 | 安徽工业大学 | Preparation method of waterworks sludge ceramsites for pretreating micro-polluted water |
| CN103382098A (en) * | 2013-07-16 | 2013-11-06 | 广州市佳境水处理技术工程有限公司 | Light biological carrier for water treatment, and preparation method and application of light biological carrier |
| CN106747593A (en) * | 2016-11-21 | 2017-05-31 | 福建工程学院 | A kind of method that utilization sludge prepares haydite with building castoff |
-
2017
- 2017-08-25 CN CN201710739164.XA patent/CN107487836A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101798140A (en) * | 2010-03-26 | 2010-08-11 | 河海大学 | Filter material for biological aerated filter and preparation method thereof |
| CN102515834A (en) * | 2011-11-11 | 2012-06-27 | 安徽工业大学 | Preparation method of waterworks sludge ceramsites for pretreating micro-polluted water |
| CN103382098A (en) * | 2013-07-16 | 2013-11-06 | 广州市佳境水处理技术工程有限公司 | Light biological carrier for water treatment, and preparation method and application of light biological carrier |
| CN106747593A (en) * | 2016-11-21 | 2017-05-31 | 福建工程学院 | A kind of method that utilization sludge prepares haydite with building castoff |
Non-Patent Citations (3)
| Title |
|---|
| 李廷希: "《功能材料导论》", 31 July 2011, 中南大学出版社 * |
| 谌建宇: "《新型废水处理功能材料的研究与应用》", 31 May 2015, 中国环境科学出版社 * |
| 钱湛芬: "《炭素工艺学》", 30 October 1996, 冶金工业出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE1850094A1 (en) * | 2018-01-29 | 2019-07-30 | Veolia Water Solutions & Tech | Biofilm carrier media in moving bed biofilm reactor processes |
| CN111867990A (en) * | 2018-01-29 | 2020-10-30 | 威立雅水处理技术支持公司 | Biofilm carrier medium in moving bed biofilm reactor process |
| CN111867990B (en) * | 2018-01-29 | 2023-11-17 | 威立雅水处理技术支持公司 | Biofilm carrier medium in moving bed biofilm reactor process |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171219 |
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| RJ01 | Rejection of invention patent application after publication |