CN112047769A - Dual-film-covering static rapid composting system and composting method for organic wastes - Google Patents
Dual-film-covering static rapid composting system and composting method for organic wastes Download PDFInfo
- Publication number
- CN112047769A CN112047769A CN202010998246.8A CN202010998246A CN112047769A CN 112047769 A CN112047769 A CN 112047769A CN 202010998246 A CN202010998246 A CN 202010998246A CN 112047769 A CN112047769 A CN 112047769A
- Authority
- CN
- China
- Prior art keywords
- membrane
- composting
- aeration
- support structure
- film
- Prior art date
- 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.)
- Pending
Links
Images
Classifications
-
- 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
- C05F17/90—Apparatus therefor
-
- 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
-
- 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
- C05F17/90—Apparatus therefor
- C05F17/964—Constructional parts, e.g. floors, covers or doors
- C05F17/971—Constructional parts, e.g. floors, covers or doors for feeding or discharging materials to be treated; for feeding or discharging other material
- C05F17/979—Constructional parts, e.g. floors, covers or doors for feeding or discharging materials to be treated; for feeding or discharging other material the other material being gaseous
-
- 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
- C05F17/90—Apparatus therefor
- C05F17/964—Constructional parts, e.g. floors, covers or doors
- C05F17/971—Constructional parts, e.g. floors, covers or doors for feeding or discharging materials to be treated; for feeding or discharging other material
- C05F17/986—Constructional parts, e.g. floors, covers or doors for feeding or discharging materials to be treated; for feeding or discharging other material the other material being liquid
-
- 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
- C05F17/90—Apparatus therefor
- C05F17/993—Arrangements for measuring process parameters, e.g. temperature, pressure or humidity
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biochemistry (AREA)
- Biotechnology (AREA)
- Health & Medical Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Microbiology (AREA)
- Molecular Biology (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
- Fertilizers (AREA)
Abstract
The invention relates to a double-film-covering static rapid composting system and a composting method for organic wastes, belonging to the technical field of aerobic composting fermentation. According to the invention, the inner membrane and the outer membrane made of e-PTFE are arranged on the stack body, due to the existence of air between the inner membrane and the outer membrane, the temperature of the inner membrane close to the material is high, the temperature of the outer membrane is low, and the existence of temperature difference enables a large amount of water vapor permeating from the inner membrane to be condensed into water drops on the inner wall of the outer membrane and to be remained in an infiltration liquid pool along the arched outer membrane, and after reaching a certain amount, the water drops are sprayed to the surface of the stack body by a spray pump, so that the surface of the material is ensured to be wet, the water content of the stack body is kept stable. The invention has the advantages of good heat preservation effect, high composting efficiency, one third shorter composting period, no turning over, simple operation and no discharge of secondary pollutants such as odor, waste water and the like.
Description
Technical Field
The invention relates to a double-film-covering static rapid composting system and a double-film-covering static rapid composting method for organic wastes, and belongs to the technical field of aerobic composting of organic wastes.
Background
At present, almost all membrane aerobic composting systems cover a layer of arched e-PTFE (expanded polytetrafluoroethylene) membrane on the surface of a pile body, and the membrane has the advantages that the odor such as nitrogen dioxide, ammonia gas, hydrogen sulfide and the like generated by fermentation can not overflow, the nitrogen content of the organic fertilizer is improved, and the membrane is environment-friendly.
In practice, the applicant finds that the optimum water content of aerobic microorganisms playing an important role in aerobic composting is about 60-65%, so that the water content of fermented materials during pile building can be adjusted to about 60-65%. However, although the odor is blocked by the e-PTFE (expanded polytetrafluoroethylene) film covered on the surface of the stack, the film is easy to allow water vapor generated by the stack to permeate out, so that a large amount of water in the stack is lost, the water content of the stack is rapidly reduced, the activity of aerobic microorganisms is affected by the rapid reduction of the water content of the stack, the degradation of organic matters is slowed, and the fermentation period is prolonged.
In addition, as the membrane aerobic composting system is usually in static fermentation without turning process, condensed water formed on the inner wall of the conventional arched membrane flows to the two sides of the material pile along the inner wall of the arched membrane, so that the surface of the material pile is easy to dry and crust, and the surface of the pile is uneven in fermentation, incomplete and incomplete in decomposition; however, since the amount of water lost from the stack cannot be measured or predicted, although water may be supplied to the stack from the outside through the spraying system, the optimum water content of the stack, which is about 60%, cannot be maintained, and thus the fermentation period may be prolonged.
Disclosure of Invention
The invention aims to: provides a double-film-covering static fast composting system and a composting method for organic wastes, which can shorten the fermentation period.
In order to solve the technical problems, one of the technical solutions proposed by the present invention is: a double-film-covering static fast composting system for organic wastes comprises an inner supporting structure and an outer supporting structure which are arranged on an anti-seepage field, wherein the field is provided with a preset gradient, and one lower side of the field is provided with a percolate pool; the inner supporting structure is covered with an inner membrane made of e-PTFE, a first closed space capable of containing the stack body is formed between the inner membrane and the anti-seepage field, the outer supporting structure is covered with an outer membrane made of e-PTFE, and a second closed space is formed between the inner membrane and the outer membrane; the field is provided with at least one aeration pipe connected with an aeration pump, the aeration pump is arranged outside the outer membrane, and the aeration pipe is provided with a plurality of aeration holes; and the middle part of the inner support structure is provided with a spray pipe, and the spray pipe is connected with an infiltration liquid pool through a spray pump.
In order to solve the technical problems, the second technical scheme provided by the invention is as follows: a composting method using the composting system of one of the technical solutions, comprising the steps of:
step one, crushing organic waste, fully and uniformly mixing the crushed organic waste with livestock and poultry manure and a composting microbial inoculum, controlling the water content of the material to be 60-65%, and controlling the carbon-nitrogen ratio to be 25: 1-30: 1;
step two, after the site with the preset gradient is hardened or the impermeable membrane is laid, an aeration pipe with the length equal to that of the material is placed on the site, and one end of the aeration pipe is connected with an aeration pump; stacking materials above the aeration pipes into a stack, mounting an inner support structure above the stack, covering an inner membrane on the inner support structure, mounting an outer support structure above the inner membrane, covering an outer membrane on the outer support structure, and pressing edges around the outer membrane to prevent air leakage;
step three, after the stacking and film covering are finished, continuous or discontinuous aeration is carried out; the percolate pool is provided with a floating ball liquid level switch, when the percolate reaches a certain liquid level, the spraying pump can be automatically started to spray the percolate back to the stack body until the fermentation is finished.
Preferably, the field is rectangular, and the inner support structure is an M-shaped support structure, so that the inner membrane is an inner membrane with an M-shaped section; the outer support structure is an arch-shaped support structure. Therefore, part of water vapor formed by the stack body is condensed into water drops on the inner wall of the inner membrane, and the water drops are converged to the lowest point in the middle of the membrane due to gravity and drop back to the stack body at a certain position of the path due to the membrane body with the M-shaped structure, so that the surface of the material is kept wet at any time, and the uniform fermentation of the stack body is ensured. .
When the invention is used, due to the existence of air between the inner and outer films, the temperature of the inner film close to the material is high, the temperature of the outer film is low, and the existence of temperature difference enables a large amount of water vapor permeating from the inner film to be condensed into water drops on the inner wall of the outer film and flow to the percolate pool along the arched outer film, and the water drops are sprayed to the surface of the compost body by the spray pump after reaching a certain amount, so as to ensure that the surface of the material is wet, the moisture content of the compost body is kept stable, the mass transfer effect is enhanced, the continuous and stable state of fermentation microorganisms at the highest activity.
The invention has the following beneficial effects:
1) the biggest difference between the invention and the current film type compost is water retention, which keeps the water content in the range of the highest water content of the compost microbial activity of about 60 percent all the time and accelerates the composting process. The applicant tests show that compared with the conventional method, the fermentation time required by the materials can be shortened by about 1/3, namely compared with the conventional membrane type compost, the fermentation time required by the materials in the invention can be shortened by about 1/3, so that the utilization rate of the e-PTFE membrane is increased, the treatment efficiency of a compost field is increased, and the composting cost is reduced.
2) The water content of the composted product is about 55 percent, the composted product is completely decomposed, and the composted product can be directly returned to the field for utilization, so that the composted product is very suitable for self-production and self-marketing users. The water content of the commercial organic fertilizer is required to be less than or equal to 30% according to the national standard, and other indexes except the water content of the product after composting meet the national standard, so that the water content can be reduced to below 30% by uncovering the film and continuing to ventilate for a period of time after the film is thoroughly decomposed, and the commercial organic fertilizer is prepared.
3) According to the invention, the M-shaped structural inner membrane is utilized to uniformly drop part of water vapor formed by the materials to the surface of the pile body under the condition of no external power, and the dropping process of condensed water is continuously carried out, so that the surfaces of the materials are kept wet constantly, and the uniform fermentation of the pile body is ensured.
4) The invention condenses the water vapor into water drops by utilizing the temperature difference between the gaps of the two films, and then the water drops flow back to the stack body through the spraying pump, thereby preserving the water. The method can simply and conveniently stabilize the moisture content of the compost at about 60 percent for a long time, thereby leading aerobic microorganisms to play the most effective role in the composting process.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a schematic cross-sectional view of an embodiment of the present invention.
FIG. 2 is a schematic side view of an embodiment of the invention.
Reference numerals: 1. a field; 2. a percolate pond; 3. a spray pump; 4. an aeration pump; 5. a shower pipe; 6. stacking; 7. an oxygen sensor; 8. an outer membrane; 9. an inner membrane; 10. an aeration pipe.
Detailed Description
Example one
The embodiment relates to a double-film-covering static fast composting system for organic wastes, which comprises an inner supporting structure and an outer supporting structure which are arranged on an anti-seepage field 1, wherein the field 1 is provided with a preset gradient, and one lower side of the field 1 is provided with a percolate pool 2; the inner supporting structure is covered with an inner membrane 9 made of e-PTFE, a first closed space capable of accommodating the stack body 6 is formed between the inner membrane 9 and the impermeable site 1, the outer supporting structure is covered with an outer membrane 8 made of e-PTFE, and a second closed space is formed between the inner membrane 9 and the outer membrane 8; the field 1 is provided with at least one aeration pipe 10 connected with an aeration pump 4, the aeration pump 4 is arranged outside the outer membrane 8, and the aeration pipe 10 is provided with a plurality of aeration holes; and a spray pipe 5 is arranged in the middle of the inner support structure, and the spray pipe 5 is connected with a percolate pool 2 through a spray pump 3.
The inner membrane is an e-PTFE (expanded polytetrafluoroethylene) membrane, and micropores of 0.2 micron are uniformly distributed on the e-PTFE membrane and can pass water vapor and CO2，N2Etc. butCan effectively shield the outward diffusion of dust, aerosol and microorganisms in the fermentation heap. Meanwhile, when the device is used, the biological heat generated by aerobic fermentation brings the moisture in the material into the air in the material, and the water vapor forms a water film on the inner film wall in the fermentation process, SO that SO generated by the aerobic fermentation can be effectively prevented2、NH3、H2S and other odors overflow, so that the odor concentration around the compost is greatly reduced, and the nitrogen content of the organic fertilizer is increased.
Because the gas in the second closed space between the inner membrane and the outer membrane exists, the temperature of the inner membrane close to the compost material is high, while the temperature of the outer membrane is low, a large amount of water vapor permeating from the inner membrane is condensed into water drops on the inner wall of the outer membrane and is remained to an infiltration liquid pool along the arched outer membrane due to the existence of the temperature difference, and the water drops are sprayed to the surface of the compost body by a spray pump after reaching a certain amount, so as to ensure that the surface of the material is moist, the moisture content of the compost body is kept stable, the mass transfer effect is enhanced, the fermentation microorganisms are kept continuously and stably in the highest activity state, the; while the slope of the field 1 allows the percolate and the cooling water collected by the outer membrane to be collected by gravity into the percolate pond. The slope of the field 1 is preferably 1-5 degrees.
The present embodiment can also be improved by:
1) a temperature sensor and/or an oxygen sensor 7 is arranged in the first closed space.
2) The percolation liquid pool is provided with a floating ball liquid level switch for starting and stopping the spraying pump. So the percolate can be automatically started after reaching a certain liquid level, and sprayed back to the heap body to ensure that the surface of the material is moist, the water content of the heap body is kept stable and the mass transfer effect is enhanced, so that the fermentation microorganisms are kept continuously and stably in the highest activity state, the composting process is accelerated, and the composting time is shortened.
3) The field is rectangular, and the inner support structure is an M-shaped support structure, so that the inner membrane is an inner membrane with an M-shaped section; the outer support structure is an arch-shaped support structure. Part of vapor formed by the stack body is condensed into water drops on the inner wall of the inner membrane, the water drops are converged toward the lowest point in the middle of the membrane due to gravity and drop back to the stack body at a certain position in a path, namely the water drops do not drop back to the middle of the stack body completely, but drop back to a certain random position on the surface of the stack body, so that the water drops are distributed more uniformly, the surface of the material is kept wet all the time, and the uniform fermentation of the stack body is ensured.
Example two
The embodiment relates to a composting method of the composting system, which comprises the following steps:
step one, crushing organic waste, fully and uniformly mixing the crushed organic waste with livestock and poultry manure and a composting microbial inoculum, controlling the water content of the material to be 60-65%, and controlling the carbon-nitrogen ratio to be 25: 1-30: 1, this is also the conventional control of aerobic composting on the material.
Step two, as shown in fig. 1 and fig. 2, after the site 1 with the preset gradient is hardened or the impermeable membrane is laid, an aeration pipe 10 with the same length as the material is placed on the site 1, and one end of the aeration pipe 10 is connected with an aeration pump 4; the method comprises the steps of stacking materials above an aerator pipe into a stack 6 with the height of 1.5-2m, mounting an inner support structure above the stack 6, covering an inner membrane 9 on the inner support structure, mounting an outer support structure above the inner membrane 9, covering an outer membrane 8 on the outer support structure, and pressing the periphery of the outer membrane 8 to prevent air leakage.
Step three, after the stacking and film covering are finished, continuous or discontinuous aeration is carried out; the percolate pool is provided with a floating ball liquid level switch, when the percolate reaches a certain liquid level, the spraying pump can be automatically started to spray the percolate back to the stack body until the fermentation is finished.
In the embodiment, after the stacking and film covering are finished, the aeration process is completely and automatically controlled, the aeration strength is designed according to the weight of the materials, and the aeration strength is generally determined to be 0.1-0.2m for each cubic meter of the materials3And/min, continuous or discontinuous aeration can be carried out. Generally speaking, livestock and poultry manure is fermented for 20-25 days; fermenting the straw and vine vegetable waste for 30-35 days; fermenting the branches for 40-45 days. After fermentation, the organic fertilizer can be directly returned to the field for utilization, or granulated to be made into commercial organic fertilizer for sale.
In the embodiment, the temperature sensor and the oxygen sensor can be placed at the upper, middle and lower positions of the material, and the aeration amount is controlled according to the measurement results of the temperature sensor and the oxygen sensor.
The embodiment can obtain continuous water supplement on the surface of the material of the pile, strengthens mass transfer, prevents the surface of the material from drying and crusting, and effectively ensures the uniform fermentation of the pile. Meanwhile, water vapor can be intercepted and flows back to the materials, the water content of the compost can be kept stable for a long time, the continuous stability of the fermentation microorganisms in the highest activity state is ensured, the composting process is accelerated, and the composting time is shortened.
The embodiment has the advantages of good heat preservation effect, high composting efficiency, no pile turning, simple operation and no discharge of secondary pollutants such as odor, wastewater and the like.
The present invention is not limited to the specific technical solutions described in the above embodiments, and other embodiments may be made in the present invention in addition to the above embodiments. It will be understood by those skilled in the art that various changes, substitutions of equivalents, and alterations can be made without departing from the spirit and scope of the invention.
Claims (7)
1. The utility model provides a static fast compost system of dual tectorial membrane of organic waste which characterized in that: the seepage-proofing construction method comprises an inner supporting structure and an outer supporting structure which are arranged on an anti-seepage site, wherein the site is provided with a preset gradient, and one lower side of the site is provided with a percolate pool;
the inner supporting structure is covered with an inner membrane made of e-PTFE, a first closed space capable of containing the stack body is formed between the inner membrane and the anti-seepage field, the outer supporting structure is covered with an outer membrane made of e-PTFE, and a second closed space is formed between the inner membrane and the outer membrane;
the field is provided with at least one aeration pipe connected with an aeration pump, the aeration pump is arranged outside the outer membrane, and the aeration pipe is provided with a plurality of aeration holes;
and the middle part of the inner support structure is provided with a spray pipe, and the spray pipe is connected with an infiltration liquid pool through a spray pump.
2. The organic waste dual-film static rapid composting system of claim 1, wherein: the field is rectangular, and the inner support structure is an M-shaped support structure, so that the inner membrane is an inner membrane with an M-shaped section; the outer support structure is an arch-shaped support structure.
3. The organic waste dual-film static rapid composting system of claim 1, wherein: the gradient of the field is 1-5 degrees.
4. The organic waste dual-film static rapid composting system of claim 1, wherein: and a temperature sensor and/or an oxygen sensor are/is arranged in the first closed space.
5. The organic waste dual-film static rapid composting system of claim 1, wherein: the percolation liquid pool is provided with a floating ball liquid level switch for starting and stopping the spraying pump.
6. A composting method using the composting system of any one of claims 1-5 comprising the steps of:
step one, crushing organic waste, fully and uniformly mixing the crushed organic waste with livestock and poultry manure and a composting microbial inoculum, controlling the water content of the material to be 60-65%, and controlling the carbon-nitrogen ratio to be 25: 1-30: 1;
step two, after the site with the preset gradient is hardened or the impermeable membrane is laid, an aeration pipe with the length equal to that of the material is placed on the site, and one end of the aeration pipe is connected with an aeration pump; stacking materials above the aeration pipes into a stack, mounting an inner support structure above the stack, covering an inner membrane on the inner support structure, mounting an outer support structure above the inner membrane, covering an outer membrane on the outer support structure, and pressing edges around the outer membrane to prevent air leakage;
step three, after the stacking and film covering are finished, continuous or discontinuous aeration is carried out; the percolate pool is provided with a floating ball liquid level switch, when the percolate reaches a certain liquid level, the spraying pump can be automatically started to spray the percolate back to the stack body until the fermentation is finished.
7. A composting method as claimed in claim 6, characterised in that: and a temperature sensor and an oxygen sensor are respectively arranged at the upper, middle and lower positions of the material, and the aeration amount is controlled according to the measurement results of the temperature sensor and the oxygen sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010998246.8A CN112047769A (en) | 2020-09-21 | 2020-09-21 | Dual-film-covering static rapid composting system and composting method for organic wastes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010998246.8A CN112047769A (en) | 2020-09-21 | 2020-09-21 | Dual-film-covering static rapid composting system and composting method for organic wastes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112047769A true CN112047769A (en) | 2020-12-08 |
Family
ID=73603590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010998246.8A Pending CN112047769A (en) | 2020-09-21 | 2020-09-21 | Dual-film-covering static rapid composting system and composting method for organic wastes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112047769A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112159262A (en) * | 2020-09-28 | 2021-01-01 | 福建农林大学 | Composting method for reducing resistance genes |
| CN113213977A (en) * | 2021-05-21 | 2021-08-06 | 尚迪(荆门)生态科技有限公司 | Thousand pages of membrane choke gathers water excrement and urine fermenting installation |
| CN113321541A (en) * | 2021-06-09 | 2021-08-31 | 黑龙江省农业科学院农村能源与环保研究所 | Method for covering film on biogas residue and excrement by mixing and aerobic composting |
| CN113511929A (en) * | 2021-08-10 | 2021-10-19 | 哈尔滨市博能环保科技有限公司 | Multi-organic-matter mixed film-coated aerobic composting device and composting process thereof |
| CN113711888A (en) * | 2021-06-04 | 2021-11-30 | 北京市农林科学院 | Solanaceous vegetable culture medium and preparation method thereof |
| CN113716991A (en) * | 2021-06-04 | 2021-11-30 | 北京市农林科学院 | Rapid composting method for organic wastes and membrane type fermentation system thereof |
| CN115259927A (en) * | 2022-08-11 | 2022-11-01 | 西北农林科技大学 | Aerobic composting fermentation system based on film covering |
| CN115504824A (en) * | 2022-10-27 | 2022-12-23 | 重庆理工大学 | Method for performing film-covering composting by film-covering composting device based on intelligent biological regulation and variable aeration |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204412754U (en) * | 2015-01-06 | 2015-06-24 | 华益兰馨(北京)环境科技有限公司 | A kind for the treatment of apparatus of petroleum hydrocarbon contaminated soil |
| CN105198517A (en) * | 2015-10-26 | 2015-12-30 | 哈尔滨工业大学 | Three-layer rapid composting device and composting method by device |
| CN105884432A (en) * | 2016-04-18 | 2016-08-24 | 同济大学 | Composting treatment system with automatic deodorization capacity |
| CN108623341A (en) * | 2018-05-14 | 2018-10-09 | 四川顶丰生物科技有限公司 | A kind of automation earthworm biological compost sludge treatment system and its application process |
| CN208776359U (en) * | 2018-07-06 | 2019-04-23 | 上海绿地环境科技股份有限公司 | A kind of automatic cycle of organic castoff compost field percolate utilizes system |
-
2020
- 2020-09-21 CN CN202010998246.8A patent/CN112047769A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204412754U (en) * | 2015-01-06 | 2015-06-24 | 华益兰馨(北京)环境科技有限公司 | A kind for the treatment of apparatus of petroleum hydrocarbon contaminated soil |
| CN105198517A (en) * | 2015-10-26 | 2015-12-30 | 哈尔滨工业大学 | Three-layer rapid composting device and composting method by device |
| CN105884432A (en) * | 2016-04-18 | 2016-08-24 | 同济大学 | Composting treatment system with automatic deodorization capacity |
| CN108623341A (en) * | 2018-05-14 | 2018-10-09 | 四川顶丰生物科技有限公司 | A kind of automation earthworm biological compost sludge treatment system and its application process |
| CN208776359U (en) * | 2018-07-06 | 2019-04-23 | 上海绿地环境科技股份有限公司 | A kind of automatic cycle of organic castoff compost field percolate utilizes system |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112159262A (en) * | 2020-09-28 | 2021-01-01 | 福建农林大学 | Composting method for reducing resistance genes |
| CN113213977A (en) * | 2021-05-21 | 2021-08-06 | 尚迪(荆门)生态科技有限公司 | Thousand pages of membrane choke gathers water excrement and urine fermenting installation |
| CN113711888A (en) * | 2021-06-04 | 2021-11-30 | 北京市农林科学院 | Solanaceous vegetable culture medium and preparation method thereof |
| CN113716991A (en) * | 2021-06-04 | 2021-11-30 | 北京市农林科学院 | Rapid composting method for organic wastes and membrane type fermentation system thereof |
| CN113711888B (en) * | 2021-06-04 | 2023-02-28 | 北京市农林科学院 | Solanaceous vegetable culture medium and preparation method thereof |
| CN113321541A (en) * | 2021-06-09 | 2021-08-31 | 黑龙江省农业科学院农村能源与环保研究所 | Method for covering film on biogas residue and excrement by mixing and aerobic composting |
| CN113511929A (en) * | 2021-08-10 | 2021-10-19 | 哈尔滨市博能环保科技有限公司 | Multi-organic-matter mixed film-coated aerobic composting device and composting process thereof |
| CN115259927A (en) * | 2022-08-11 | 2022-11-01 | 西北农林科技大学 | Aerobic composting fermentation system based on film covering |
| CN115504824A (en) * | 2022-10-27 | 2022-12-23 | 重庆理工大学 | Method for performing film-covering composting by film-covering composting device based on intelligent biological regulation and variable aeration |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112047769A (en) | Dual-film-covering static rapid composting system and composting method for organic wastes | |
| Hansen et al. | Observations of production and emission of greenhouse gases and ammonia during storage of solids separated from pig slurry: effects of covering | |
| Meng et al. | Feasibility of co-composting of sewage sludge, spent mushroom substrate and wheat straw | |
| Abd El Kader et al. | Turning, compacting and the addition of water as factors affecting gaseous emissions in farm manure composting | |
| WO2018014757A1 (en) | Method for preparing aerobic compost having kitchen waste organic matters | |
| Sommer | Effect of composting on nutrient loss and nitrogen availability of cattle deep litter | |
| Fang et al. | Effects of semi-permeable membrane covering coupled with intermittent aeration on gas emissions during aerobic composting from the solid fraction of dairy manure at industrial scale | |
| CN106495945B (en) | A kind of method that soil conditioner is quickly prepared using municipal sludge | |
| CN103242073B (en) | A kind of slot type aerobic compost foul smell reduces discharging, collects and treatment process | |
| CN101585725B (en) | Organic solid waste water regulation high-temperature aerobic composting device and method thereof | |
| CN111393203B (en) | Static composting heat recycling system for agricultural and forestry organic solid waste | |
| CN105036836A (en) | Farm liquid manure treatment system and method | |
| Balsari et al. | Ammonia emissions from farmyard manure heaps and slurry stores—Effect of environmental conditions and measuring methods | |
| CN113773141B (en) | Straw organic fertilizer and preparation method thereof | |
| CN208799964U (en) | A kind of reinforced soil deodorization device | |
| CN204162624U (en) | A kind of unpowered self ventilated type aerobic composting device | |
| CN207355168U (en) | A kind of environmental protection pig house | |
| CN101863720B (en) | Microbial fertilizer for holding water and fixing nitrogen of soil and preparation method thereof | |
| CN219621096U (en) | Movable molecular film aerobic composting fermentation box | |
| CN217459275U (en) | Utilize quick compost fermenting installation of air nature oxygen therapy | |
| Molnar et al. | Factors influencing solid-state anaerobic digestion | |
| JP2010264447A (en) | Process for biological-thermal treatment of refuse | |
| CN114350500A (en) | Membrane-covered aerobic fermentation circulating device and circulating method | |
| CN112661539A (en) | Microporous black film aerobic fermentation composting process and system | |
| Deng et al. | Rural Household Digesters |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |