CN107324854A - A kind of method that During High-Temperature Composting handles city sludge - Google Patents
A kind of method that During High-Temperature Composting handles city sludge Download PDFInfo
- Publication number
- CN107324854A CN107324854A CN201710739162.0A CN201710739162A CN107324854A CN 107324854 A CN107324854 A CN 107324854A CN 201710739162 A CN201710739162 A CN 201710739162A CN 107324854 A CN107324854 A CN 107324854A
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- China
- Prior art keywords
- during high
- sludge
- foul smell
- temperature composting
- city sludge
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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
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F5/00—Fertilisers from distillery wastes, molasses, vinasses, sugar plant or similar wastes or residues, e.g. from waste originating from industrial processing of raw material of agricultural origin or derived products thereof
- C05F5/002—Solid waste from mechanical processing of material, e.g. seed coats, olive pits, almond shells, fruit residue, rice hulls
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/02—Biological treatment
- C02F11/04—Anaerobic treatment; Production of methane by such processes
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
- C05F17/50—Treatments combining two or more different biological or biochemical treatments, e.g. anaerobic and aerobic treatment or vermicomposting and aerobic treatment
-
- 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
- Y02W30/00—Technologies for solid waste management
- Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Environmental & Geological Engineering (AREA)
- Biotechnology (AREA)
- Microbiology (AREA)
- Biochemistry (AREA)
- Mechanical Engineering (AREA)
- Botany (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Fertilizers (AREA)
- Treatment Of Sludge (AREA)
Abstract
The present invention relates to a kind of method that During High-Temperature Composting handles city sludge, this method comprises the following steps：(1) moisture content is granulated for 75 ~ 80% dewatered sludge, obtain the mud granule that particle diameter is 3 ~ 10mm；(2) the mud granule is delivered in mixing arrangement through closed feeding web, while adding auxiliary material, after stirring, obtains compound；(3) the compound sends into kiln formula installation for fermenting, and it is 0.5 ~ 0.7 to make its degree of filling, is then fermented in 60 ~ 65 DEG C, after 5 ~ 7 days, obtains one time fermentation material；(4) the one time fermentation material delivers to secondary fermentation room, the fermentation materials stablized after 20 ~ 30 days through closed discharge conveyer belt.The present invention is simple and easy to do, and composting process heat production loss is small, and heat energy is easy to centralized collection recycling, and compost terminates without screening.
Description
Technical field
The side of city sludge is handled the present invention relates to city sludge processing technology field, more particularly to a kind of During High-Temperature Composting
Method.
Background technology
During High-Temperature Composting is widely used in poultry excretion as a kind of technology maturation, simple and easy to apply, cost-effective method
The processing disposal of the organic wastes such as thing, night soil, agricultural crop straw.
City sludge organic matter is made up of bacterium, fungi, protozoan and metazoa more, after dehydration（Moisture content 75% ~
80%）Mobility extreme difference, microbial metabolic products diffusion hindered, oxygen is extremely difficult to bulk dewatered sludge interior shifting, makes aerobic
Microorganism is difficult to survive, easily corrupt smelly, have to environment it is potentially hazardous, if dealing with improperly, easily to environment produce two
Secondary pollution.
Minimizing, stabilisation, innoxious, recycling are always that city sludge handles the guideline disposed.Sludge high temperature
Compost is used as the common technology that a kind of environment-friendly and sustainable method for sludge treatment is recycling sludge disposal.
Dewatered sludge stickiness containing high polymer coagulant is big, and sludge uniformly mixes difficulty with auxiliary material, adds auxiliary material use
Amount；Dewatered sludge agglomerate is larger and size is uneven, causes the sludge degree of becoming thoroughly decomposed to have differences；Inside heap body with surface temperature not
, parasitic ovum effect is killed in influence；Heap body voidage is low and uneven, and influence coefficient of oxygen utilization is low, increases wind supply quantity, increases energy
Consumption；Moisture percentage in sewage sludge is high（75~80%）, using becoming thoroughly decomposed, material backflow adjustment moisture content both adds energy consumption, also reduces reactor
Effective volume.
Mobility is compared with the poor fluidity in water processing reactor after city sludge dehydration, although internal be in anoxic, anaerobism
State, but Sludge Surface water film contains the oxygen for meeting microbial metabolism needs enough.Therefore, increase dewatered sludge compares surface
Product, stabilization and activity with regard to dewatered sludge microbial population can be effectively increased, the spy for continuing activated sludge efficient degradation organic matter
Property.Under conditions of carbon source and oxygen are met, bacteria metabolism is vigorous, and heap temperature rise speed is fast.
The content of the invention
The technical problems to be solved by the invention are to provide the side that a kind of During High-Temperature Composting simple and easy to apply handles city sludge
Method.
To solve the above problems, the method that a kind of During High-Temperature Composting of the present invention handles city sludge, including following step
Suddenly：
(1) moisture content is granulated for 75 ~ 80% dewatered sludge, obtain the mud granule that particle diameter is 3 ~ 10mm；
(2) the mud granule is delivered in mixing arrangement through closed feeding web, meanwhile, by the 5 of the mud granule weight
~ 20% addition auxiliary material, after stirring, obtains compound；
(3) the compound sends into kiln formula installation for fermenting, and it is 0.5 ~ 0.7 to make its degree of filling, is then fermented in 60 ~ 65 DEG C,
After 5 ~ 7 days, one time fermentation material is obtained；
(4) the one time fermentation material delivers to secondary fermentation room, the hair stablized after 20 ~ 30 days through closed discharge conveyer belt
Ferment material.
The step (2) in auxiliary material refer to any one in wood chip, stalk, wheat straw, cotton seed hulls, husk.
(3) middle kiln formula installation for fermenting includes the inclination that one end is provided with charging aperture provided with discharging opening II, the other end to the step
The rotary kiln being driven by motor set；The charging aperture is connected with the discharging opening I of the mixing arrangement.
The step (2) in closed feeding web and the step (4) in closed discharge conveyer belt on be all provided with
There is foul smell collection port, the foul smell collection port is connected with biological deodorizer.
The biological deodorizer includes one end and is provided with out provided with air inlet, the other end being connected with the foul smell collection port
The foul smell collection conduit of gas port；The porous aggregate box being staggered is evenly equipped with the foul smell collection conduit, the porous aggregate box
Side be fixed on the foul smell collection conduit tube wall；Biologic packing material is filled with the porous aggregate box.
The biologic packing material refers to wormcast.
The present invention has advantages below compared with prior art：
1st, the present invention is granulated to the dewatered sludge of cities and towns moisture content 75 ~ 80%, and energy consumption is extremely low, can effectively increase after mud granulizing
Plus sludge specific surface area.
2nd, the present invention will be granulated after sludge is mixed with auxiliary material and sent into kiln formula installation for fermenting, be utilized " original inhabitants " in sludge
Bacteria metabolism heat production improves rapidly heap temperature.
3rd, the present invention rolls turning oxygenating by the easy rollability of granulation sludge by kiln formula installation for fermenting, improves oxygen
Utilization rate, reduces ventilation energy consumption.
4th, the present invention keeps material bulk temperature consistent in kiln formula installation for fermenting, improves sterilization effect.
5th, the present invention, which need not become thoroughly decomposed, expects backflow, improves the kiln formula installation for fermenting useful space, saves backflow energy consumption.
6th, kiln formula installation for fermenting of the present invention is relatively closed, is focused on beneficial to foul gas, and production environment cleaning is friendly.
7th, using the inventive method, composting process heat production loss is small, and heat energy is easy to centralized collection recycling, and compost terminates
Without screening.
Brief description of the drawings
The embodiment to the present invention is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 is kiln formula installation for fermenting structural representation in the present invention.
Fig. 2 is biological deodorizer structural representation in the present invention.
In figure：1-mixing arrangement；11-discharging opening I；2-kiln formula installation for fermenting；21-discharging opening II；22-charging
Mouthful；23-motor；31-air inlet；32-gas outlet；33-foul smell collection conduit；34-porous aggregate box；35-biology is filled out
Material.
Embodiment
The method that a kind of During High-Temperature Composting of embodiment 1 handles city sludge, comprises the following steps：
(1) moisture content is granulated for 75% dewatered sludge, obtain the mud granule that particle diameter is 3 ~ 10mm.
(2) mud granule is delivered in mixing arrangement 1 through closed feeding web, meanwhile, add by the 5% of mud granule weight
Plus auxiliary material, after stirring, obtain compound.
(3) compound sends into kiln formula installation for fermenting 2, and it is 0.5 to make its degree of filling, is then fermented in 60 DEG C, after 7 days,
Obtain one time fermentation material.
(4) one time fermentation material delivers to secondary fermentation room, the fermentate stablized after 30 days through closed discharge conveyer belt
Material.
The method that a kind of During High-Temperature Composting of embodiment 2 handles city sludge, comprises the following steps：
(1) moisture content is granulated for 80% dewatered sludge, obtain the mud granule that particle diameter is 3 ~ 10mm.
(2) mud granule is delivered in mixing arrangement 1 through closed feeding web, meanwhile, by the 20% of mud granule weight
Auxiliary material is added, after stirring, compound is obtained.
(3) compound sends into kiln formula installation for fermenting 2, and it is 0.7 to make its degree of filling, is then fermented in 65 DEG C, after 5 days,
Obtain one time fermentation material.
(4) one time fermentation material delivers to secondary fermentation room, the fermentate stablized after 20 days through closed discharge conveyer belt
Material.
The method that a kind of During High-Temperature Composting of embodiment 3 handles city sludge, comprises the following steps：
(1) moisture content is granulated for 78% dewatered sludge, obtain the mud granule that particle diameter is 3 ~ 10mm.
(2) mud granule is delivered in mixing arrangement 1 through closed feeding web, meanwhile, by the 13% of mud granule weight
Auxiliary material is added, after stirring, compound is obtained.
(3) compound sends into kiln formula installation for fermenting 2, and it is 0.6 to make its degree of filling, is then fermented in 62 DEG C, after 6 days,
Obtain one time fermentation material.
(4) one time fermentation material delivers to secondary fermentation room, the fermentate stablized after 25 days through closed discharge conveyer belt
Material.
In above-described embodiment 1 ~ 3, auxiliary material refers to any one in wood chip, stalk, wheat straw, cotton seed hulls, husk.
Kiln formula installation for fermenting 2 includes one end provided with discharging opening II 21, the other end being obliquely installed provided with charging aperture 22
The rotary kiln being driven by motor 23；Charging aperture 22 is connected with the discharging opening I 11 of mixing arrangement 1（Referring to Fig. 1）.
Foul smell collection port is equipped with closed feeding web and closed discharge conveyer belt, the foul smell collection port is connected with
Biological deodorizer.Biological deodorizer includes one end and is provided with out provided with air inlet 31, the other end being connected with foul smell collection port
The foul smell collection conduit 33 of gas port 32；The porous aggregate box 34 being staggered is evenly equipped with foul smell collection conduit 33, this is porous to fill out
The side of magazine 34 is fixed on the tube wall of foul smell collection conduit 33；Biologic packing material 35 is filled with porous aggregate box 34（Referring to figure
2）.Biologic packing material 35 refers to wormcast.
Claims (6)
1. a kind of method that During High-Temperature Composting handles city sludge, comprises the following steps：
(1) moisture content is granulated for 75 ~ 80% dewatered sludge, obtain the mud granule that particle diameter is 3 ~ 10mm；
(2) the mud granule delivers to mixing arrangement through closed feeding web（1）In, meanwhile, by the mud granule weight
5 ~ 20% addition auxiliary materials, after stirring, obtain compound；
(3) the compound sends into kiln formula installation for fermenting（2）, it is 0.5 ~ 0.7 to make its degree of filling, is then sent out in 60 ~ 65 DEG C
Ferment, after 5 ~ 7 days, obtains one time fermentation material；
(4) the one time fermentation material delivers to secondary fermentation room, the hair stablized after 20 ~ 30 days through closed discharge conveyer belt
Ferment material.
2. the method that a kind of During High-Temperature Composting as claimed in claim 1 handles city sludge, it is characterised in that：The step (2) in
Auxiliary material refer to any one in wood chip, stalk, wheat straw, cotton seed hulls, husk.
3. the method that a kind of During High-Temperature Composting as claimed in claim 1 handles city sludge, it is characterised in that：The step (3) in
Kiln formula installation for fermenting（2）Discharging opening II is provided with including one end（21）, the other end be provided with charging aperture（22）Be obliquely installed it is logical
Cross motor（23）The rotary kiln of transmission；The charging aperture（22）With the mixing arrangement（1）Discharging opening I（11）It is connected.
4. the method that a kind of During High-Temperature Composting as claimed in claim 1 handles city sludge, it is characterised in that：The step (2) in
Closed feeding web and the step (4) in closed discharge conveyer belt on be equipped with foul smell collection port, the foul smell receive
Ji Kou is connected with biological deodorizer.
5. the method that a kind of During High-Temperature Composting as claimed in claim 4 handles city sludge, it is characterised in that：The biological deodorization
Device includes one end and is provided with the air inlet being connected with the foul smell collection port（31）, the other end be provided with gas outlet（32）Foul smell receive
Collect pipeline（33）；The foul smell collection conduit（33）Inside it is evenly equipped with the porous aggregate box being staggered（34）, the porous aggregate box
（34）Side be fixed on the foul smell collection conduit（33）On tube wall；The porous aggregate box（34）It is interior to be filled with biologic packing material
（35）.
6. the method that a kind of During High-Temperature Composting as claimed in claim 5 handles city sludge, it is characterised in that：The biologic packing material
（35）Refer to wormcast.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710739162.0A CN107324854A (en) | 2017-08-25 | 2017-08-25 | A kind of method that During High-Temperature Composting handles city sludge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710739162.0A CN107324854A (en) | 2017-08-25 | 2017-08-25 | A kind of method that During High-Temperature Composting handles city sludge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107324854A true CN107324854A (en) | 2017-11-07 |
Family
ID=60224855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710739162.0A Pending CN107324854A (en) | 2017-08-25 | 2017-08-25 | A kind of method that During High-Temperature Composting handles city sludge |
Country Status (1)
| Country | Link |
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| CN (1) | CN107324854A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108675853A (en) * | 2018-05-10 | 2018-10-19 | 江苏恒丰科技有限公司 | A method of preparing Nutrition Soil by raw material of sludge |
| CN110668899A (en) * | 2019-10-28 | 2020-01-10 | 湖北大学 | Rapid domestic sludge fertilizing and maturing method |
Citations (4)
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|---|---|---|---|---|
| JPS54149260A (en) * | 1978-05-13 | 1979-11-22 | Sankyo Eijienshii Kk | Seeding agent and method of disposing sewage |
| CN1608456A (en) * | 2003-10-22 | 2005-04-27 | 中国农业大学 | Earthworm excrement deodorizing method and apparatus |
| CN103964905A (en) * | 2014-06-04 | 2014-08-06 | 杨解定 | Composting device and method |
| CN104418615A (en) * | 2013-08-21 | 2015-03-18 | 蒋华 | Method for producing organic composite fertilizer with municipal sludge |
-
2017
- 2017-08-25 CN CN201710739162.0A patent/CN107324854A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54149260A (en) * | 1978-05-13 | 1979-11-22 | Sankyo Eijienshii Kk | Seeding agent and method of disposing sewage |
| CN1608456A (en) * | 2003-10-22 | 2005-04-27 | 中国农业大学 | Earthworm excrement deodorizing method and apparatus |
| CN104418615A (en) * | 2013-08-21 | 2015-03-18 | 蒋华 | Method for producing organic composite fertilizer with municipal sludge |
| CN103964905A (en) * | 2014-06-04 | 2014-08-06 | 杨解定 | Composting device and method |
Non-Patent Citations (1)
| Title |
|---|
| 国家环境保护总局污染控制司: "《城市固体废物管理与处理处置技术》", 31 January 2000, 中国石化出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108675853A (en) * | 2018-05-10 | 2018-10-19 | 江苏恒丰科技有限公司 | A method of preparing Nutrition Soil by raw material of sludge |
| CN110668899A (en) * | 2019-10-28 | 2020-01-10 | 湖北大学 | Rapid domestic sludge fertilizing and maturing method |
| CN110668899B (en) * | 2019-10-28 | 2021-09-14 | 湖北大学 | Rapid domestic sludge fertilizing and maturing method |
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| PB01 | Publication | ||
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Application publication date: 20171107 |