CN100429182C - Organic solid waste composting and biological deodorizing system and its operation method - Google Patents
Organic solid waste composting and biological deodorizing system and its operation method Download PDFInfo
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- CN100429182C CN100429182C CNB2005100864033A CN200510086403A CN100429182C CN 100429182 C CN100429182 C CN 100429182C CN B2005100864033 A CNB2005100864033 A CN B2005100864033A CN 200510086403 A CN200510086403 A CN 200510086403A CN 100429182 C CN100429182 C CN 100429182C
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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
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- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
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- Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse
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Abstract
The present invention relates to organic solid waste composting and biological deodorizing system and its operation method. The system includes one amendment crusher, one mixing machine to mix the crushed amendment and organic solid waste, one vertical forced ventilating composting unit, one decaying bin, one biological deodorizing reaction unit, one sieving machine, and conveying apparatus to connect all the above said parts. The system is operated in time-temperature combined ventilation controlling mode. The technology of the present invention may be adopted in harmless and stable treatment of organic solid waste to obtain compost product for agriculture, forest, garden, etc.
Description
Technical field
The invention belongs to disposition of solid waste and resource technology field, particularly a kind of organic solid castoff compost treatment and biological deodorizing system and working method thereof.
Background technology
Because the fluid-tight ratio height of urban land, the characteristics of city surface source pollution are: it produces with heavy rain and runoff, has sudden.Area source pollutants is accumulated at fine day, the rainy day discharging, and the periodicity of pollution is obvious.Compare with metropolitan district, the land use type of tourist district is different from the city, and the impervious surface ratio is far below metropolitan district, and the greenery area ratio is higher than metropolitan district.Therefore, tourist district's pollution of area source and is subjected to the influence of tourist district's tourism function deeply except the general characteristic with city surface source pollution.
The zoological park, city belongs to typical tourist district, and the visitor is numerous, and the animal venue disperses, and animal excrement are accumulated on ground.Organic solid castoff (animal excrement and dry branches and fallen leaves) is one of principal pollutant source in the zoological park, city.The animal excrement amount of having in the zoological park, city is big, stench, contains characteristics such as a large amount of worm's ovums and pathogenic bacteria, can greatly influence the visitor as untimely cleaning and visit and HUMAN HEALTH.In addition, in rainy season, because storm runoff, the cumulative animal excrement of the face of land, animal threshing ground have become the principal pollutant source in face source, as not adding processing, will have a strong impact on water body environment.According to investigations, the processing mode of city zoo animal ight soil all is that the outward transport back is with municipal wastes landfill or burning usually.
Organic content and the nitrogen and phosphorus content of considering animal excrement are all very high, method by compost can be with its recycling, the pollution problem that not only can save freight charges, solves ight soil, and can turn harm into good, with the composting production produced fertilizer and soil conditioner as green belt in the zoological park, city.In addition, composting process can produce foul smell, so in order to prevent the influence of foul smell to surrounding enviroment and operator, be necessary the foul smell that composting process produces is handled.
Usually compositing system has three major types: bar buttress, forced ventilation static buttress and reactor compositing system.The maximum difference of bar buttress compositing system and forced ventilation static buttress system is: the former is by the ventilation oxygen supply of regular turning realization to the heap body, and the latter piles the body transfixion, adopts the forced ventilation mode to carry out oxygen supply.This two type systematic all belongs to open compositing system, and floor space is big, and the foul smell of generation is wayward.The reactor compositing system adopts the forced ventilation mode, belongs to closed system, and floor space is little, and the foul smell of generation is easy to control, but investment cost and Operation and Maintenance require height.Therefore, according to the national conditions of China, suitable compositing system must possess following characteristics: floor space is little, and investment cost is low, and easy handling safeguards that the foul smell of generation is easy to control.
Can the foul smell problem is related to a compost factory normally move, and effectively ozone Control is to weigh the important symbol that compost factory successfully turns round.Compare with other physico-chemical process, biological process is handled the foul smell less investment, and working cost is low, does not produce secondary pollution, has obtained widespread use.The bad smell biological treatment system mainly is divided into three kinds of biological filter, biological washing tower and bio-trickling filters.Biological filter equipment is simple, and working cost is low, but floor space is bigger, is unsuitable for handling the higher foul smell of Pollutant levels.Biological washing tower is easy to control reaction conditions, but equipment is complicated, is unsuitable for handling hydrophobic contaminant.The bio-trickling pool equipment is simpler, but is unsuitable for handling the foul smell that contains the high density pollution thing and contain hydrophobic contaminant.Because cultured microorganism is all based on bacterium, therefore, the pollutent that these three kinds of bad smell biological treatment facilities are suitable for handling mostly is hydrophilic.Its deficiency is for the foul smell that is mixed with the multiple pollutent that water-soluble difference is big, concentration is different, relies on above-mentioned single treatment facility to be difficult to effectively remove simultaneously.
Summary of the invention
One of purpose of the present invention is to provide a kind of organic solid castoff compost treatment and biological deodorizing system, can be used as the technology of a kind of economical and efficient, less energy-consumption and the processing of eco-friendly organic solid castoff and the resource utilization of tourist district.
Two of purpose of the present invention is to provide the working method of a kind of organic solid castoff compost treatment and biological deodorizing system.
Organic solid castoff compost treatment of the present invention and biological deodorizing system are constituted by pulverizer I, mixing machine II, handling equipment, vertical forced ventilation composting device III, the storehouse IV that becomes thoroughly decomposed, biological deodorizing reaction unit VI, sieve apparatus V, it is characterized in that:
One mixes organic solid castoff and accepts mixing machine II from the amendment of being pulverized by pulverizer I by handling equipment, connects with vertical forced ventilation composting device III by handling equipment;
Vertical forced ventilation composting device III connects with the storehouse IV that becomes thoroughly decomposed by handling equipment, and the venting port of vertical forced ventilation composting device III connects by the inlet mouth of pipeline with the biological deodorizing reaction unit VI that has venting port;
The storehouse IV that becomes thoroughly decomposed connects with sieve apparatus V by handling equipment;
The discharging port of sieve apparatus V is divided into finished product material mouth and defective goods material mouth, and defective goods material mouth connects with mixing machine II by handling equipment.
The warehouse of described vertical forced ventilation composting device III is a reverse taper, and device top is equipped with Cang Gai and has venting hole, and the bottom is provided with the percolate vent pipe; In the compost warehouse, thermoscope is housed, thermoscope links to each other by the lead temperature sensor outer with being installed in warehouse, temperature sensor is connected with temperature regulator, one end of temperature regulator is connected with centrifugal blower, one end is connected with time controller, the other end of time controller is connected with centrifugal blower, and the bottom inlet mouth of the warehouse of the outlet of centrifugal blower and vertical forced ventilation composting device joins.
Described thermoscope is mounted in the windrow in the warehouse.
The described thermoscope that is installed in the windrow is 3 layers of installation of branch.
Thermoscope in described each layer windrow is that 3 points of branch are installed.
Described biological deodorizing reaction unit VI is divided into floated bio-reaction zone by the perforation dividing plate with reaction zone and the fixed type biological reaction zone of filler is housed; One perforation inlet pipe is installed on the sidewall of the lower unit of floated bio-reaction zone and has a water outlet, inlet pipe is connected by the venting hole of blower fan with vertical forced ventilation static storehouse composting device III; The perforation water inlet pipe is installed on the sidewall of upper unit, and a liquidometer.In the fixed type biological reaction zone, filler is installed, on the sidewall of the upper unit of filler, is provided with the spray liquid perforated pipe, be provided with vapor pipe at the top of biological deodorizing device.
Described organic solid castoff is feces of livestock and poultry, animal excrement, food-processing waste or their mixture etc.
Described amendment is dry branches and fallen leaves, agricultural crop straw, rice husk, corn cob or their mixture etc.
The working method of organic solid castoff compost treatment of the present invention and biological deodorizing system, it is characterized in that: according to the requirement of the required amendment granularity of organic solid castoff compost, utilize pulverizer that the amendment of collecting (as dry branches and fallen leaves) is ground into certain particle, amendment and organic solid castoff (as animal excrement) after will pulverizing with mixing machine then mix, the windrow water ratio is controlled at about 60%, by handling equipment (as transfer roller) windrow that mixes is transported among the vertical forced ventilation composting device III and carries out During High-Temperature Composting; Through During High-Temperature Composting after the stage, and heap temperature reduces to when identical with surrounding environment temperature, and the windrow in the composting device delivers from godown and packs into to become thoroughly decomposed and becomes thoroughly decomposed the phase after entering among the IV of storehouse; Through after the become thoroughly decomposed windrow of phase deliver from godown and enter among the sieve apparatus V and separate, the discharging of compost finished product, undegradable amendment is back to and continues in the mixing tank to handle; In the During High-Temperature Composting stage, collect the foul smell of composting process generation and be delivered to emptying after the purifying treatment in the biological deodorizing reaction unit by pipeline.
The concrete operation method of organic solid castoff compost treatment of the present invention and biological deodorizing system can be referring to Fig. 1～4:
As shown in Figure 1.The amendment of collecting is at first pulverized by pulverizer I, then organic solid castoff (as animal excrement) according to certain volume ratio with pulverize after amendment in mixing machine II, mix, windrow water ratio behind the uniform mixing is controlled at about 55～65%, mixed windrow is delivered among the vertical forced ventilation composting device III by handling equipment carries out During High-Temperature Composting, the During High-Temperature Composting of process certain period is after the stage, material is delivered from godown, windrow after delivering from godown becomes thoroughly decomposed after entering and carrying out among the storehouse IV that becomes thoroughly decomposed, and makes to reach innoxious and stabilization through the organic solid castoff after the compost treatment; Compost after will becoming thoroughly decomposed by handling equipment is sent among the sifter V and is sieved.To separate on the one hand the undegradable amendment in back and be back to and continue in the mixing tank to handle, on the other hand according to difference with fertile needs, the matured compost that sieves according to different-grain diameter can be used for different purposes (as soil improvement agent, gardens with fertilizer etc.).Carry out During High-Temperature Composting during the stage in vertical forced ventilation composting device III, the foul smell collection back that composting process is produced is delivered among the biological deodorizing reaction unit VI by pipeline, and it is purified the back emptying.
As shown in Figure 2.The warehouse of vertical forced ventilation composting device is reverse taper (top is that cuboid, bottom are the shape of falling the truncated rectangular pyramids), and device top is equipped with storehouse lid 7 and has venting hole 4, and the bottom is provided with percolate vent pipe 5; In in-vessel composting system 1, windrow is housed, nine thermoscopes have been installed respectively in the upper, middle and lower-ranking windrow, have nine points for measuring temperature, be respectively a1, a2, a3, b1, b2, b3, c1, c2, c3; They link to each other by the lead temperature sensor 3 outer with being installed in warehouse respectively, and wherein thermoscope a1, a2, a3 link to each other with temperature sensor a, and thermoscope b1, b2, b3 link to each other with temperature sensor b, and thermoscope c1, c2, c3 link to each other with temperature sensor c; 3 temperature sensors are connected with temperature regulator 6 respectively, one end of temperature regulator 6 is connected with centrifugal blower 2, one end is connected with time controller, the other end of time controller is connected with centrifugal blower 2, and the bottom blast inlet of the outlet of centrifugal blower 2 and vertical forced ventilation composting device warehouse 1 joins.
As shown in Figure 3.Described vertical forced ventilation composting device adopt time-temperature Ventilation Control draft type.This composting device adopts the forced ventilation mode, centrifugal blower 2 is jointly controlled by time-temperature regulator, the temperature at heap body 20 centers obtains the back by thermoscope and is transferred to temperature regulator 6 by temperature sensor 3, reach design temperature (55 ℃～60 ℃) before when piling body 20 core temperatures, centrifugal blower 2 is by time controller 21 controls; When the heap body core temperature reached design temperature, centrifugal blower was by temperature regulator 6 controls; When the heap body core temperature is lower than design temperature, time controller control centrifugal blower.
As shown in Figure 4.Biological deodorizing reaction unit VI is divided into floated bio-reaction zone 10 by perforation dividing plate 9 with reaction zone and the fixed type biological reaction zone 11 of filler is housed; The microorganism of degradation of contaminant is based on bacterium in floated bio-reaction zone 10; One perforation inlet pipe 12 is installed on the sidewall of the lower unit of floated bio-reaction zone 10 and has a water outlet 13; Inlet pipe 12 is connected by the venting hole of blower fan 18 with vertical forced ventilation composting device III, and foul smell is squeezed in the floated bio-reaction zone 10 by the blower fan 18 gas inlet hole pipe 12 that wears long; Perforation water inlet pipe 14 is installed on the sidewall of upper unit; For observing inner liquid level, be provided with a liquidometer 15.Filler 19 is installed in fixed type biological reaction zone 11, can adopts different materials to make filler 19, as sponge or haydite etc.; The microorganism of degradation of contaminant is based on fungi, by the microbial film degradation of contaminant that forms on filler in the fixed type biological reaction zone 11.Therefore, the biological deodorizing reaction unit can effectively be removed wetting ability and the hydrophobic contaminant in the foul smell simultaneously.On the sidewall of the upper unit of filler 19, be provided with spray liquid perforated pipe 16, be provided with vapor pipe 17 at the top of biological deodorizing reaction unit.
The present invention can be according to the requirement of windrow water ratio, organic solid castoff (as animal excrement) is mixed according to certain volume ratio with amendment (as dry branches and fallen leaves), the forced ventilation mode that compositing system adopts time-temperature to jointly control, before, centrifugal blower is controlled by time controller when the heap body core temperature reaches design temperature (55 ℃～60 ℃); When the heap body core temperature reached design temperature, centrifugal blower was controlled by temperature regulator; When the heap body core temperature is lower than design temperature, time controller control centrifugal blower.When heap body experience During High-Temperature Composting after the stage (3～4 week), and heap temperature reduces to when identical with surrounding environment temperature, and windrow delivers from godown, and becomes thoroughly decomposed the phase after entering.The foul smell that produces in the During High-Temperature Composting stage is through collecting the back by emptying after the biological deodorizing reaction unit purifying treatment.Through after the technical finesse of the present invention, not only organic solid castoff has reached innoxious and stabilization, composting production can be used for agricultural, forestry and gardens etc., as being used as soil improvement agent and fertilizer, thereby reach the purpose of resource utilization, and eliminated of the harm of the foul smell of composting process generation surrounding enviroment and operator.
Organic solid castoff compost treatment of the present invention and biological deodorizing system and working method thereof also can be applicable to the processing and the resource utilization of municipal solid wastes, agricultural solid residue and food-processing solid waste.
Description of drawings
Fig. 1. organic solid castoff compost treatment of the present invention and biological deodorizing system synoptic diagram.
The main synoptic diagram of Fig. 2 A. vertical forced ventilation composting device of the present invention.
Fig. 2 B. vertical forced ventilation composting device of the present invention cut open synoptic diagram.
Fig. 3. vertical forced ventilation composting device of the present invention adopt time-temperature natural and mechanical combined ventilation control mode logical schematic.
Fig. 4. biological deodorizing reaction unit synoptic diagram of the present invention.
Fig. 5. the heap temperature curvilinear motion of the animal excrement composting process of the embodiment of the invention.
Reference numeral
I. the vertical forced ventilation composting device of pulverizer II. mixing machine III.
IV. storehouse VI. biological deodorizing reaction unit V. sieve apparatus becomes thoroughly decomposed
1. warehouse 2. centrifugal blowers 3. temperature sensors
4. venting hole 5. percolate vent pipes 6. temperature regulators
7. storehouse top cover 8. storehouse bottoms 9. dividing plates
10. floated bio-reaction zone 11. fixed type biological reaction zones
12. inlet pipe 13. water outlets 14. water inlet pipes
15. liquidometer 16. spray liquid pipes 17. vapor pipes
18. blower fan 19. fillers 20. heap bodies
21. time controller
A, b, c. temperature sensor
A1, a2, a3, b1, b2, b3, c1, c2, c3. thermoscope
Embodiment
Embodiment 1:
See also Fig. 1.Organic solid castoff compost treatment and biological deodorizing system are constituted by pulverizer I, mixing machine II, handling equipment, vertical forced ventilation composting device III, the storehouse IV that becomes thoroughly decomposed, biological deodorizing reaction unit VI, sieve apparatus V.
One mixes organic solid castoff and accepts mixing machine II from the pulverized amendment of pulverizer I by handling equipment, connects with vertical forced ventilation composting device III by handling equipment;
Vertical forced ventilation composting device III connects with the storehouse IV that becomes thoroughly decomposed by handling equipment, and the venting port of vertical forced ventilation composting device III connects by the inlet mouth of pipeline with the biological deodorizing reaction unit VI that has venting port;
The storehouse IV that becomes thoroughly decomposed connects with sieve apparatus V by handling equipment;
The discharging port of sieve apparatus V is divided into finished product material mouth and defective goods material mouth, and defective goods material mouth connects with mixing machine II by handling equipment.
Vertical forced ventilation composting device III is shown in Fig. 2 A and Fig. 2 B.Vertical forced ventilation composting device adopt time-temperature natural and mechanical combined ventilation control mode logic as shown in Figure 3.Biological deodorizing reaction unit VI is divided into floated bio-reaction zone 10 and the fixed type biological reaction zone 11 that filler is housed by perforation dividing plate 9 with reaction zone as shown in Figure 4; The microorganism of degradation of contaminant is based on bacterium in the floated bio-reaction zone 10; Ceramics filling 19 is installed in fixed type biological reaction zone 11, and the microorganism of degradation of contaminant is based on fungi in the fixed type biological reaction zone 11.The storehouse IV that becomes thoroughly decomposed is a container or pond body.
With system of the present invention the animal excrement and the dry branches and fallen leaves in zoological park, Wuhan are handled.
At first the dry branches and fallen leaves of collecting is pulverized, then the dry branches and fallen leaves after animal excrement and the pulverizing is mixed (mixed windrow water ratio is controlled at about 60%), the vertical forced ventilation composting device of packing into carries out During High-Temperature Composting, and cover Cang Gai, at heap body upper, middle and lower-ranking 9 thermoscope (AT: room temperature are housed respectively at last; NO.1 is equivalent to b2, and NO.2 is equivalent to b1, and NO.3 is equivalent to b3; NO.4 is equivalent to a1, and NO.5 is equivalent to a2, and NO.6 is equivalent to a3; NO.7 is equivalent to c1, and NO.8 is equivalent to c2, and NO.9 is equivalent to c3), thermoscope links to each other by the lead temperature sensor outer with being installed in warehouse.The forced ventilation mode that compositing system adopts time-temperature to jointly control is when the heap body core temperature reaches design temperature (55 ℃～60 ℃) (T: actual temperature, T before
Set: design temperature), centrifugal blower is controlled by time controller; When the heap body core temperature reached design temperature, centrifugal blower was controlled by temperature regulator; When the heap body core temperature is lower than design temperature, time controller control centrifugal blower.When heap body experience During High-Temperature Composting after the stage (3～4 week), and heap temperature reduces to when identical with surrounding environment temperature, and windrow delivers from godown, and becomes thoroughly decomposed the phase after entering.Reached decontamination of human excreta hygienic standard (GB7959-87) through the animal excrement after the heap corruption.The foul smell that produces in the During High-Temperature Composting stage, through collecting the back by emptying after the biological deodorizing system purifying treatment, ammonia, hydrogen sulfide, the sulfur alcohol concentration of giving vent to anger is respectively 0.30,0.0011 and 0.0132mgm in the foul smell
-3, clearance reaches 96.7%, 96.6% and 92.7% respectively, gives vent to anger to have reached odorant pollutant emission standard (GB 14554-93).The heap temperature curvilinear motion of animal excrement composting process as shown in Figure 5.
Claims (6)
1. organic solid castoff compost treatment and biological deodorizing system are constituted by pulverizer I, mixing machine II, handling equipment, vertical forced ventilation composting device III, the storehouse IV that becomes thoroughly decomposed, biological deodorizing reaction unit VI, sieve apparatus V, it is characterized in that:
One mixes organic solid castoff and accepts mixing machine II from the pulverized amendment of pulverizer I by handling equipment, connects with vertical forced ventilation composting device III by handling equipment;
Vertical forced ventilation composting device III connects with the storehouse IV that becomes thoroughly decomposed by handling equipment, and the venting port of vertical forced ventilation composting device III connects by the inlet mouth of pipeline with the biological deodorizing reaction unit VI that has venting port;
The storehouse IV that becomes thoroughly decomposed connects with sieve apparatus V by handling equipment;
The discharging port of sieve apparatus V is divided into finished product material mouth and defective goods material mouth, and defective goods material mouth connects with mixing machine II by handling equipment;
The warehouse of described vertical forced ventilation composting device III is a reverse taper, and device top is equipped with Cang Gai and has venting hole, and the bottom is provided with the percolate vent pipe; In the composting device warehouse, thermoscope is housed, thermoscope links to each other by the lead temperature sensor outer with being installed in warehouse, temperature sensor is connected with temperature regulator, one end of temperature regulator is connected with centrifugal blower, one end is connected with time controller, the other end of time controller is connected with centrifugal blower, and the bottom inlet mouth of the warehouse of the outlet of centrifugal blower and vertical forced ventilation composting device joins;
Described biological deodorizing reaction unit VI is divided into floated bio-reaction zone by the perforation dividing plate with reaction zone and the fixed type biological reaction zone of filler is housed; One perforation inlet pipe is installed on the sidewall of the lower unit of floated bio-reaction zone and has a water outlet, inlet pipe is connected by the venting hole of blower fan with vertical forced ventilation static storehouse composting device III; The perforation water inlet pipe is installed on the sidewall of upper unit, and a liquidometer; In the fixed type biological reaction zone, filler is installed, on the sidewall of the upper unit of filler, is provided with the spray liquid perforated pipe, be provided with vapor pipe at the top of biological deodorizing device.
2. system according to claim 1 is characterized in that: described thermoscope is mounted in the windrow in the warehouse.
3. system according to claim 2 is characterized in that: the described thermoscope that is installed in the windrow is 3 layers of installation of branch.
4. system according to claim 3 is characterized in that: the thermoscope in described each layer windrow is that 3 points of branch are installed.
5. system according to claim 1 is characterized in that: described organic solid castoff is animal excrement, food-processing waste or their mixture; Described amendment is dry branches and fallen leaves, agricultural crop straw, rice husk, corn cob or their mixture.
6. system according to claim 5 is characterized in that: described animal excrement are feces of livestock and poultry.
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| CN100429182C true CN100429182C (en) | 2008-10-29 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2818053C1 (en) * | 2023-10-20 | 2024-04-23 | Общество с ограниченной ответственностью "ЭкоВектор" | Organic waste composting device |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102671536B (en) * | 2012-05-31 | 2014-04-02 | 中国环境科学研究院 | Deodorization method taking waste as main raw material of biological filter packing |
| CN102826881B (en) * | 2012-08-23 | 2014-01-01 | 北京机电院高技术股份有限公司 | Integrated system and method for biological treatment of urban garden green waste |
| CN105624024B (en) * | 2014-10-31 | 2018-01-19 | 南京法迈特科技发展有限公司 | Microorganism separator in cavity content |
| CN110105094A (en) * | 2019-04-10 | 2019-08-09 | 广西大自然再生资源有限公司 | Organic domestic waste biological bacteria fermentation process |
| CN110922232B (en) * | 2019-12-03 | 2021-11-19 | 深圳亿乐鸿环保设备有限公司 | Garbage decomposition is with compost device that can reduce polluting gaseous diffusion |
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| CN1256258A (en) * | 1999-12-15 | 2000-06-14 | 华中理工大学 | Environment protecting method during producing compound fertilizer with excrments and domestic garbage |
| CN1317463A (en) * | 2000-04-07 | 2001-10-17 | 中国科学院生态环境研究中心 | Static process for preparing compost in house by time-temp controlled ventilation and its equipment |
| CN2609925Y (en) * | 2003-04-02 | 2004-04-07 | 董红敏 | Closed compost fermentation device |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1256258A (en) * | 1999-12-15 | 2000-06-14 | 华中理工大学 | Environment protecting method during producing compound fertilizer with excrments and domestic garbage |
| CN1317463A (en) * | 2000-04-07 | 2001-10-17 | 中国科学院生态环境研究中心 | Static process for preparing compost in house by time-temp controlled ventilation and its equipment |
| CN2609925Y (en) * | 2003-04-02 | 2004-04-07 | 董红敏 | Closed compost fermentation device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2818053C1 (en) * | 2023-10-20 | 2024-04-23 | Общество с ограниченной ответственностью "ЭкоВектор" | Organic waste composting device |
| RU2818054C1 (en) * | 2023-10-20 | 2024-04-23 | Общество с ограниченной ответственностью "ЭкоВектор" | Method of processing organic wastes |
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| CN1931800A (en) | 2007-03-21 |
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