CN113121012A - Preparation and application of carbonized sludge powder carrier - Google Patents
Preparation and application of carbonized sludge powder carrier Download PDFInfo
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- CN113121012A CN113121012A CN202110428342.3A CN202110428342A CN113121012A CN 113121012 A CN113121012 A CN 113121012A CN 202110428342 A CN202110428342 A CN 202110428342A CN 113121012 A CN113121012 A CN 113121012A
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- grinding
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- carbonized sludge
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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
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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
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
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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
- 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)
- Microbiology (AREA)
- Chemical & Material Sciences (AREA)
- Water Supply & Treatment (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Biodiversity & Conservation Biology (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Biological Treatment Of Waste Water (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention relates to the field of preparation of environment functional materials, in particular to preparation and application of a carbonized sludge powder carrier, which comprises the following steps: the method comprises the following steps: collecting raw materials, and taking back coarse carbonized sludge particles from a sewage treatment plant; step two: grinding the particles, namely performing coarse grinding on the coarse particles through a coarse grinding machine, wherein wet grinding is adopted in a grinding mode, and the millimeter-sized particles are ground to micron-sized particles; step three: selecting and installing equipment, and connecting a pin type sand mill or an impeller or a rotating disc type sand mill in series behind a rough mill; step four: and (3) fine grinding, namely pumping the ground particles obtained in the step two into a pin type sand mill or an impeller or a rotating disc type sand mill in the step three by using a pump, then carrying out wet fine grinding, and repeatedly grinding to obtain particles with the particle size of 5-50 microns. By adopting the scheme, the preparation process is simplified, the preparation cost is reduced, the performance of the carbonized sludge is further improved, the carbonized sludge is effectively treated, and the full utilization of resources is realized.
Description
Technical Field
The invention relates to the technical field of preparation of environment functional materials, in particular to preparation and application of a carbonized sludge powder carrier.
Background
The municipal sewage sludge is a byproduct generated in the sewage purification process of a municipal sewage treatment plant, and is an extremely complex heterogeneous body consisting of organic debris, bacterial cells, inorganic particles, colloids and the like. How to safely, economically and reasonably treat the sludge is concerned by both domestic and overseas. Advanced sewage treatment technology and high treatment degree due to early industrialization process in developed countries in the west. In China, along with the acceleration of the urbanization process, the urban population is increasing when the industrial production is rapidly developed, and the discharge amount of urban domestic sewage is increasing day by day. The sludge treatment refers to the process of volume reduction, decrement, stability and harmlessness of the sludge generated by the municipal sewage treatment plant through a series of subsequent treatments. According to the characteristics of the sludge, researchers at home and abroad put forward the principles of reduction, stabilization, resource utilization and harmlessness to the sludge treatment and disposal technology in turn. The sludge treatment process is an indispensable link of each sewage treatment plant before sludge disposal. Different sludge treatment and disposal methods are combined with each other, and in practice, which method is adopted needs to be determined according to factors such as the property, the components, the technical level, the local conditions, the final disposal mode and the like of the sludge.
The thermochemical treatment method of sludge is to separate the organic matter in sludge in various forms, usually in gas and liquid forms, under the condition of heating sludge, and only leave the solid residue for final treatment. The thermochemical treatment method of the sludge has the advantages of rapid treatment, small occupied area, thorough harmless treatment, good stability of the treated sludge, energy recovery and the like, the status of the thermochemical treatment method of the sludge is gradually enhanced, and the thermochemical treatment method of the sludge is considered to be a promising sludge treatment method and increasingly receives attention of people.
Along with the deep development of an urban system, the quantity of urban sewage and sludge is gradually increased, if the generated sludge cannot be properly treated, the urban environment suffers from secondary pollution, if the generated sludge is effectively treated, the effect of changing waste into valuable can be realized, the full utilization of resources is realized, the rationality of a resource system is improved, the foundation is laid for the further development of economy, a sludge carbonization product is obtained by carbonizing the sludge, and then the sludge carbonization material is prepared by a series of preparation methods. The sludge carbonized material is used as a powder carrier to be applied to the HPB process, and an idea is provided for resource utilization of sludge.
The main component of the carbonized sludge material is mainly inorganic matter, and the harmful components in the carbonized sludge material are required to be lower than the national controllable standard.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide preparation and application of a carbonized sludge powder carrier which is low in manufacturing cost, safe and reliable.
In order to achieve the purpose, the technical scheme provided by the invention is as follows: the preparation method of the carbonized sludge powder carrier is characterized by comprising the following steps:
the method comprises the following steps: collecting raw materials, and taking back coarse carbonized sludge particles from a sewage treatment plant;
step two: grinding the particles, namely performing coarse grinding on the coarse particles through a coarse grinding machine, wherein wet grinding is adopted in a grinding mode, and the millimeter-sized particles are ground to micron-sized particles;
step three: selecting and installing equipment, and connecting a pin type sand mill or an impeller or a rotating disc type sand mill in series behind a rough mill;
step four: and (3) fine grinding, namely pumping the ground particles obtained in the step two into a pin type sand mill or an impeller or a rotating disc type sand mill in the step three by using a pump, then carrying out wet fine grinding, and repeatedly grinding to obtain particles with the particle size of 5-50 microns.
The application of the carbonized sludge powder carrier comprises the following steps:
the method comprises the following steps: adding the carbonized sludge carrier obtained by wet fine grinding into a stirring tank;
step two: adding a certain amount of water into the stirring pool;
step three: stirring the carbonized sludge carrier and water in the stirring tank by a stirrer to form slurry;
step four: wet-adding the fully-stirred slurry into a sewage treatment biochemical pool through a metering pump to perform sewage treatment;
the application of the carbonized sludge powder carrier is characterized in that the carbonized sludge powder carrier accounts for 3-5% of the slurry, and the water accounts for 97-95% of the slurry.
The embodiment of the invention provides preparation and application of a carbonized sludge powder carrier, which has the following beneficial effects:
1. by improving the raw material for preparing the sludge activated carbon, the preparation process is simplified, the preparation cost is reduced, and the performance of the sludge activated carbon is further improved.
2. By utilizing the characteristics of an activated sludge method and a biofilm method, the method has the advantages of small occupied area, high treatment efficiency and strong load resistance, and in addition, the particle size of the powder carrier particles in the method is small (5-50 mu m), the suspension dispersion performance is excellent, and the true density is 1.6-3.0g/cm3The microbial affinity is strong, a 'double-sludge' symbiotic microbial system with suspension growth and attachment growth can be constructed, the sludge concentration is increased to 8-10g/l, the biological diversity of the system, namely the abundance of attachment type growth microorganisms, is increased, and the volume load and the treatment efficiency are greatly improved.
Detailed Description
The present invention is further described below, and the preferred embodiments of the present invention are: the preparation method of the carbonized sludge powder carrier comprises the following steps:
the method comprises the following steps: collecting raw materials, and taking back coarse carbonized sludge particles from a sewage treatment plant;
step two: grinding the particles, namely performing coarse grinding on the coarse particles through a coarse grinding machine, wherein wet grinding is adopted in a grinding mode, and the millimeter-sized particles are ground to micron-sized particles;
step three: selecting and installing equipment, and connecting a pin type sand mill or an impeller or a rotating disc type sand mill in series behind a rough mill;
step four: and (3) fine grinding, namely pumping the ground particles obtained in the step two into a pin type sand mill or an impeller or a rotating disc type sand mill in the step three by using a pump, then carrying out wet fine grinding, and repeatedly grinding to obtain particles with the particle size of 5-50 microns.
The application of the carbonized sludge powder carrier comprises the following steps:
the method comprises the following steps: adding the carbonized sludge carrier obtained by wet fine grinding into a stirring tank;
step two: adding water into the stirring pool;
step three: stirring the carbonized sludge carrier and water in the stirring tank by a stirrer to form slurry;
step four: and (4) adding the fully stirred slurry into a sewage treatment biochemical pool in a wet manner through a metering pump to perform sewage treatment.
In the application of the carbonized sludge powder carrier, the optimal part of the carbonized sludge carrier in the slurry accounts for 4 percent, and the optimal part of water in the slurry accounts for 96 percent.
According to the invention, the preparation process is simplified, the preparation cost is reduced and the performance of the sludge activated carbon is further improved by improving the preparation raw material of the sludge activated carbon after the embodiment is adopted; by utilizing the characteristics of an activated sludge method and a biofilm method, the method has the advantages of small occupied area, high treatment efficiency, strong load resistance, small particle size of powder carrier particles, excellent suspension dispersion performance and 1.6-3.0g/cm true density3The microbial affinity is strong, a 'double-sludge' symbiotic microbial system with suspension growth and attachment growth can be constructed, the sludge concentration is increased to 8-10g/l, the biological diversity of the system, namely the abundance of attachment type growth microorganisms, is increased, and the volume load and the treatment efficiency are greatly improved.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. The preparation method of the carbonized sludge powder carrier is characterized by comprising the following steps:
the method comprises the following steps: collecting raw materials, and taking back coarse carbonized sludge particles from a sewage treatment plant;
step two: grinding the particles, namely performing coarse grinding on the coarse particles through a coarse grinding machine, wherein wet grinding is adopted in a grinding mode, and the millimeter-sized particles are ground to micron-sized particles;
step three: selecting and installing equipment, and connecting a pin type sand mill or an impeller or a rotating disc type sand mill in series behind a rough mill;
step four: and (3) fine grinding, namely pumping the ground particles obtained in the step two into a pin type sand mill or an impeller or a rotating disc type sand mill in the step three by using a pump, then carrying out wet fine grinding, and repeatedly grinding to obtain particles with the particle size of 5-50 microns.
2. The application of the carbonized sludge powder carrier is characterized by comprising the following steps:
the method comprises the following steps: adding the carbonized sludge carrier obtained by wet fine grinding into a stirring tank;
step two: adding a certain amount of water into the stirring pool;
step three: stirring the carbonized sludge carrier and water in the stirring tank by a stirrer to form slurry;
step four: and (4) adding the fully stirred slurry into a sewage treatment biochemical pool in a wet manner through a metering pump to perform sewage treatment.
3. The use of the carbonized sludge powder carrier in accordance with claim 2, wherein the carbonized sludge carrier is present in the slurry in an amount of 3-5% by weight and the water is present in the slurry in an amount of 97-95% by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110428342.3A CN113121012A (en) | 2021-04-21 | 2021-04-21 | Preparation and application of carbonized sludge powder carrier |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110428342.3A CN113121012A (en) | 2021-04-21 | 2021-04-21 | Preparation and application of carbonized sludge powder carrier |
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| CN113121012A true CN113121012A (en) | 2021-07-16 |
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| CN202110428342.3A Pending CN113121012A (en) | 2021-04-21 | 2021-04-21 | Preparation and application of carbonized sludge powder carrier |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005344099A (en) * | 2004-05-07 | 2005-12-15 | Tokyo Electric Power Co Inc:The | Sludge-carbonized fuel, and method and system for producing the same |
| CN108821543A (en) * | 2018-06-25 | 2018-11-16 | 钟桂冰 | Method for sludge treatment |
| CN108911453A (en) * | 2018-07-06 | 2018-11-30 | 四川建筑职业技术学院 | A kind of black base-material and preparation method thereof using sludge preparation and prepare production line |
| TWM580585U (en) * | 2019-04-09 | 2019-07-11 | 陳豪吉 | Water purification sludge recycling treatment system |
| CN110627195A (en) * | 2019-10-31 | 2019-12-31 | 湖南三友环保科技有限公司 | Method for manufacturing composite powder carrier for town sewage treatment |
| CN111039394A (en) * | 2020-01-03 | 2020-04-21 | 同济大学 | Powder-reinforced SBR sewage biochemical treatment method |
| CN112138870A (en) * | 2020-09-18 | 2020-12-29 | 江苏万宝鑫金属科技有限公司 | Processing method for recycling iron powder from sludge |
-
2021
- 2021-04-21 CN CN202110428342.3A patent/CN113121012A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005344099A (en) * | 2004-05-07 | 2005-12-15 | Tokyo Electric Power Co Inc:The | Sludge-carbonized fuel, and method and system for producing the same |
| CN108821543A (en) * | 2018-06-25 | 2018-11-16 | 钟桂冰 | Method for sludge treatment |
| CN108911453A (en) * | 2018-07-06 | 2018-11-30 | 四川建筑职业技术学院 | A kind of black base-material and preparation method thereof using sludge preparation and prepare production line |
| TWM580585U (en) * | 2019-04-09 | 2019-07-11 | 陳豪吉 | Water purification sludge recycling treatment system |
| CN110627195A (en) * | 2019-10-31 | 2019-12-31 | 湖南三友环保科技有限公司 | Method for manufacturing composite powder carrier for town sewage treatment |
| CN111039394A (en) * | 2020-01-03 | 2020-04-21 | 同济大学 | Powder-reinforced SBR sewage biochemical treatment method |
| CN112138870A (en) * | 2020-09-18 | 2020-12-29 | 江苏万宝鑫金属科技有限公司 | Processing method for recycling iron powder from sludge |
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