CN112744906B - Aeration device and aerobic ecological moving bed - Google Patents
Aeration device and aerobic ecological moving bed Download PDFInfo
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- CN112744906B CN112744906B CN202110007285.1A CN202110007285A CN112744906B CN 112744906 B CN112744906 B CN 112744906B CN 202110007285 A CN202110007285 A CN 202110007285A CN 112744906 B CN112744906 B CN 112744906B
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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
- C02F3/08—Aerobic processes using moving contact bodies
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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
- C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
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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
- C05F7/00—Fertilisers from waste water, sewage sludge, sea slime, ooze or similar masses
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/20—Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses
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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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- 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
- Y02W10/20—Sludge processing
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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
- 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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Abstract
The invention provides an aeration device and an aerobic ecological moving bed, wherein the aeration device comprises an air inlet pipe, and the air inlet pipe conveys external air into a tank body; the gas outlet pipe is used for conveying gas generated in the fermentation process in the tank body to the outside of the tank body; and the aeration pipe is connected with the air inlet pipe and uniformly discharges the gas input by the air inlet pipe to each position of the tank body. The aerobic ecological moving bed comprises a tank body and a feeding device arranged at the top of the tank body, wherein the feeding device conveys sludge into the tank body, and a material distribution device is arranged below the feeding device; an aeration device disposed within the tank body; the aeration device conveys outside air into the tank body, sludge is subjected to biological drying reaction under the action of oxygen, and gas generated in the fermentation process in the tank body is conveyed to the outside of the tank body.
Description
Technical Field
The invention relates to an aeration device and an aerobic ecological moving bed, belonging to the field of sludge treatment.
Background
Along with the continuous improvement of the sewage treatment rate and the sewage treatment degree in China, the urban sludge yield is also increased year by year. The urban sludge is mainly composed of aerobic microorganisms, and also comprises solid substances such as silt, fibers, animal and plant residues and the like mixed in sewage, and adsorbed substances such as organic matters, heavy metals, germs, worm eggs and the like. If a large amount of municipal sludge is not properly disposed, serious secondary pollution will be caused.
At present, the sludge disposal method mainly comprises landfill, land utilization, incineration and the like. Because the water content of the municipal sludge is usually higher, the water content of the municipal sludge is still about 80 percent after the municipal sludge is subjected to concentration and dehydration treatment, and the municipal sludge has the characteristics of large volume, unfavorable transportation, unstable property and the like. Direct landfill occupies a large amount of land, and leachate pollutes underground water; land utilization is greatly limited due to large transportation volume, difficult dispersion and easy pollution to underground water; direct incineration also results in a significantly increased disposal cost due to the low solids content, resulting in a too low calorific value to sustain effective auto-ignition and the need for large amounts of auxiliary fuel. Therefore, the key to solve many problems encountered in the sludge treatment process at present is to carry out drying treatment on the municipal sludge and reduce the water content of the sludge.
The traditional sludge drying method adopts a sludge drying bed form, sludge is accumulated in an outdoor drying bed, and the sludge is dried under the action of natural ventilation and gravity. The modern drying process is mainly heat drying, namely a process for evaporating water in sludge by an external heating source, and has the advantages of small occupied area, obvious reduction, flexible product use and the like. However, the heat drying process has many problems, mainly including high investment and operation cost, high equipment operation energy consumption, and dust explosion potential safety hazard, and is difficult to be popularized and applied in large scale in China. Therefore, the development of a more economical and energy-saving drying technology becomes an urgent need for municipal sludge treatment in China.
Biodesiccation was first proposed by jewell et al, connell university, USA, in 1984 when studying the operational parameters of cow dung bio-desiccation, sometimes called bio-desiccation, biostabilization. The biological drying is a treatment process which adopts a process control means, utilizes the bioenergy generated by the degradation of organic matters in the high-temperature aerobic fermentation process of microorganisms and is matched with forced ventilation to promote the evaporation and removal of water, thereby realizing the rapid drying.
At present, biological drying processes at home and abroad are various in form, and common biological drying technologies comprise strip-stack type fermentation drying and fermentation tank type fermentation drying. The strip pile type fermentation is generally open-air fermentation, and the raw material mixture is generally piled into a strip pile, the section of the strip pile can be trapezoid or triangular, and the strip pile type fermentation method is a common aerobic fermentation method. The strip stacks are too large, an anaerobic zone is easily generated in the center, and odor is generated when the stacks are turned; too small a stack, rapid heat dissipation, and difficulty in ensuring the killing of pathogens and weed seeds. Fermentation tank type fermentation is carried out in a factory building or a tunnel bin and can be divided into a sunlight shed fermentation tank and a tunnel type fermentation bin, and the existing common fermentation process generally has the defects of uneven mass transfer and long fermentation time; the system occupies a large area; the odor is big, and the collection and the disposal are difficult.
Disclosure of Invention
Aiming at the technical problems in the prior art, the invention provides an aeration device and an aerobic ecological moving bed, which are designed in a closed manner, have no odor overflow, do not need to increase the cost for the second time, are provided with expensive deodorization systems, can be directly arranged in a plant area for centralized sludge treatment, and carry out self-drying on the generated heat in the sludge treatment process.
In one aspect of the present invention, there is provided an aeration apparatus comprising:
the air inlet pipe conveys external air into the tank body;
the gas outlet pipe is used for conveying gas generated in the fermentation process in the tank body to the outside of the tank body; and
the aeration pipe is connected with the air inlet pipe and uniformly discharges the gas input by the air inlet pipe to each position of the tank body;
wherein, air enters the tank body through the air inlet pipe and is uniformly discharged into the tank body through the aeration pipe, and gas generated after fermentation in the tank body is discharged out of the tank body through the air outlet pipe.
The invention has the further improvement that the end part of the air inlet pipe is connected with an annular pipe, the aeration pipe is vertically connected on the annular pipe, and a plurality of aeration holes are arranged on the aeration pipe;
wherein, the gas in the gas inlet pipe enters the aeration pipe through the annular pipe and is discharged into the tank body through the aeration hole.
The invention has the further improvement that a plurality of telescopic joints are arranged on the aeration pipe, and the length of the aeration pipe is adjusted through the telescopic joints.
The invention is further improved in that the air inlet pipe is connected with an aeration fan outside the tank body, the aeration fan transmits air to the annular pipe and the aeration pipe through the air inlet pipe and provides pressure for the gas to be discharged into the tank body through the aeration holes.
The invention is further improved in that the gas outlet pipe is connected with an induced draft fan outside the tank body, and the induced draft fan pumps out gas in the tank body through the gas outlet pipe.
The invention is further improved in that an air purification device is arranged at the output end of the induced draft fan.
The invention is further improved in that the air inlet pipe and the air outlet pipe exchange heat through a heat exchanger.
In another aspect of the present invention, an aerobic ecological moving bed is provided, comprising:
a tank body which is provided with a plurality of tanks,
the feeding device is arranged at the top of the tank body and is used for conveying sludge into the tank body, and the distributing device is arranged below the feeding device;
an aeration device provided in the tank body, the aeration device being an aeration device according to any one of claims 1 to 7, and the aeration device being provided below the feeding device, and the height of the aeration device being lower than the stacking height of the sludge;
the aeration device conveys outside air into the tank body, sludge is subjected to biological drying reaction under the action of oxygen, and gas generated in the fermentation process in the tank body is conveyed to the outside of the tank body.
The invention is further improved in that a discharging device is arranged at the bottom of the tank body, and the sludge is discharged out of the tank body through the discharging device after being dried.
The invention is further improved in that a support frame is arranged in the tank body and is connected with the aeration device, so that the aeration pipe is at a set height.
Compared with the prior art, the invention has the advantages that:
the invention relates to an aerobic ecological moving bed, which is an aerobic fermentation technology with high efficiency, low consumption, environmental friendliness and small occupied area. And the drying and weight reducing capacity is strong, the water content of the dry sludge is less than or equal to 20-50%, the drying and weight reducing capacity can be adjusted, the reduction amount is more than 80%, and the technical bottleneck that the water content of the dry sludge is high and the weight reducing capacity is weak in the traditional drying mode is overcome.
The aerobic ecological moving bed does not need an external heating source, does not need additional auxiliary materials, does not need to add additional strains, utilizes a large amount of biological energy released by the growth and the propagation of microorganisms in the sludge to carry out drying, only needs the sludge conveying and the aeration fan to consume power, and has low operation cost. Realizes medium temperature composting at 55-80 ℃ for more than 5 days, meets the composting requirement, and can be used as a fertilizer for landscaping. The vertical gravity flow design is adopted, pile turning is not needed, the vertical design occupies a very small area which is only 10% of the area occupied by the conventional compost;
the aeration device provided by the invention carries out self-drying by utilizing the heat generated in the metabolism process of the microorganisms, and hot air generated in the drying process enters the heat exchanger through the induced draft fan to preheat inlet air, so that heat energy circulation is realized, and the microorganisms are in the optimal reaction temperature.
Meanwhile, no odor is discharged, and no deodorization is needed. The whole equipment system adopts a closed design, is free of odor overflow, does not need secondary cost increase to install an expensive deodorization system, can be directly installed in a plant area, carries out sludge centralized treatment, and can directly discharge condensed water without secondary treatment. The design of a closed system is adopted, so that the heat pump can be operated efficiently in winter without heat loss, and the heat pump can be utilized in hundred percent without being limited by seasons.
The tank body is totally closed, the tank body works at the medium temperature of 55-80 ℃, the dust concentration is less than 60g/m < 3 >, the particle temperature is less than 70 ℃, the flying dust and explosion hidden dangers are avoided, the discharge temperature is less than 50 ℃, secondary cooling is not needed, the tank body can be directly stored, and the safety is high.
Drawings
Preferred embodiments of the present invention will be described in detail below with reference to the attached drawing figures, wherein:
FIG. 1 is a schematic view showing the structure of an aerobic ecological moving bed and an aeration apparatus according to an embodiment of the present invention;
FIG. 2 is a top view of the structure of an aerobic ecological moving bed according to an embodiment of the present invention;
FIG. 3 is a schematic view showing the structure of an aerobic ecological moving bed and an aeration apparatus according to an embodiment of the present invention; an aeration tube with a telescopic joint is shown.
In the drawings, like parts are provided with like reference numerals. The figures are not drawn to scale.
The meaning of the reference symbols in the drawings is as follows: 1. the device comprises a tank body 2, an aeration device 11, a feeding device 12, a distributing device 13, a discharging device 20, an air inlet pipe 21, an air outlet pipe 22, an annular pipe 23, an aeration pipe 24, an aeration hole 25 and an expansion joint.
Detailed Description
In order to make the technical solutions and advantages of the present invention more apparent, exemplary embodiments of the present invention are described in further detail below with reference to the accompanying drawings. It is clear that the described embodiments are only a part of the embodiments of the invention, and not an exhaustive list of all embodiments. And the embodiments and features of the embodiments may be combined with each other without conflict.
Fig. 1 schematically shows an aeration apparatus according to an embodiment of the present invention, including an intake duct 20, the intake duct 20 delivering external air into a tank 1. The aeration device also comprises an air outlet pipe 21, and the air outlet pipe 21 conveys the gas generated in the fermentation process in the tank body 1 to the outside of the tank body 1. The aeration device also comprises an aeration pipe connected with the air inlet pipe, and the aeration pipe uniformly discharges the gas input by the air inlet pipe to each position of the tank body 1. Wherein, air enters the tank body 1 through the air inlet pipe 20 and is uniformly discharged into the tank body 1 through the aeration pipe 23, and gas generated after fermentation in the tank body 1 is discharged out of the tank body 1 through the air outlet pipe 21.
In one embodiment, the end of the air inlet pipe 20 is connected with a ring pipe 22, the ring pipe 22 is horizontally arranged at the upper part of the tank body 1, and a plurality of aeration pipes 23 are vertically connected on the ring pipe 22. Wherein, the aeration pipe 23 is fixed below the annular pipe 22 and is arranged vertically downwards. The aeration pipe 23 is provided with a plurality of aeration holes 24, and the annular pipe 22 can also be provided with the aeration holes 24. During the fermentation process, the air inlet pipe 20 introduces external air, enters the aeration pipe 23 through the annular pipe 22, and is finally discharged into the tank body 1 through the aeration holes 24 on the aeration pipe 23. Preferably, the aeration holes 24 adopt a transverse aeration mode, so that the wind resistance is small and the energy consumption is low.
In a preferred embodiment, a plurality of telescopic joints 25 are arranged on the aeration pipe 23, the telescopic joints 25 are sleeved, and the telescopic joints 25 can be telescopic. The length of the aeration pipe 23 is adjusted by the telescopic joint 25.
When the length of the aeration pipe 23 is adjusted, firstly, the height of the aeration pipe 23 is designed according to the height of the tank body 1, then, the length of the aeration pipe 23 is adjusted by adjusting the telescopic joint 25, and the telescopic joint 25 retracted in the sleeved part is ensured to correspond to the aeration hole 24 of the telescopic joint 25 sleeved outside.
In one embodiment, the air inlet pipe 20 is connected with an aeration fan outside the tank 1, and the aeration fan pumps outside air to the annular pipe 22 through the air inlet pipe 20 and discharges the air into the tank 1 through the aeration pipe 23 on the annular pipe 22. The aeration blower transfers air to the ring pipe 22 and the aeration pipe 23 through the air inlet pipe 20 and provides pressure for the gas to be discharged into the tank 1 through the aeration holes 24.
In one embodiment, the air outlet pipe 21 is connected with an induced draft fan outside the tank body 1, and the induced draft fan pumps out the air in the tank body 1 through the air outlet pipe 21. In the working process, the aeration fan pumps external air to the annular pipes 22 through the air inlet pipe 20, the air in the annular pipes 22 uniformly flows into the aeration pipes 23, and the aeration pipes 23 discharge the air into the tank body 1 through the exhaust holes. Air is mixed with sludge in the tank body 1 to dry the sludge, and water vapor generated in the drying process is discharged under the action of the draught fan through the air outlet.
In one embodiment, the output end of the induced draft fan is provided with an air purification device. The gas discharged from the tank body 1 is purified by the air purification device and then discharged into the atmosphere, so that impurities or harmful gas in the sludge are prevented from entering the atmosphere and polluting the environment.
In one embodiment, a heat exchanger is arranged outside the tank 1, two pipelines of the heat exchanger are respectively provided with an air inlet pipe 20 and an air outlet pipe 21, and the air inlet pipe 20 and the air outlet pipe 21 exchange heat through the heat exchanger. The vapor generated in the drying process enters the heat exchanger under the action of the draught fan to preheat the inlet air of the system, so that the heat energy circulation is realized, the microorganisms are at the optimal reaction temperature, and the condensed water is discharged.
In another aspect of the present invention, an aerobic ecological moving bed is provided, and in this embodiment, the aerobic ecological moving bed includes a tank body 1. The tank body 1 is a closed space, the top of the tank body 1 is provided with a feeding device 11, and the feeding device 11 conveys sludge into the tank body 1. A material distribution device 12 is arranged below the feeding device 11, the material distribution device 12 uniformly distributes the sludge in the tank body 1, an aeration device 2 is arranged in the tank body 1, and the aeration device 2 can convey air into the tank body 1. The aeration device 2 is arranged below the feeding device 11, and the height of the aeration device 2 is lower than the height of sludge stacking. Wherein, the aeration device 2 conveys the external air into the tank body 1, the sludge is subjected to biological drying reaction under the action of oxygen, and the aeration device 2 also conveys the generated gas such as water vapor and the like to the outside of the tank body 1.
In the case of using the aerobic ecological moving bed according to the present embodiment, sludge is transferred into the tank 1 through the feeding means 11 and accumulated in the tank 1. In the accumulated sludge, air is input through the aeration device 2, and self-drying is carried out by utilizing heat generated in the microbial metabolism process.
In one embodiment, the bottom of the tank body 1 is provided with a discharging device 13, and the sludge is dried and then discharged out of the tank body 1 through the discharging device 13.
When the aerobic ecological moving bed for biological drying according to the embodiment is used, the feeding device 11 conveys sludge to the upper end of the feeding device 11, the sludge is uniformly distributed in the biological drying device through the feeding device 11, and the sludge stacking height is higher than the aeration device 2, and the height can be determined according to the distance between the aeration pipe 23 and the air inlet pipe 21. The aeration fan and the aeration pipe 23 are used for forcibly oxygenating the ecological moving bed, water vapor generated in the drying process enters the heat exchanger under the action of the draught fan, the inlet air of the system is preheated, the heat energy circulation is realized, and condensed water is directly discharged. The sludge slowly moves downwards under the action of the gravity of the sludge, and the dried sludge is discharged out of the reactor through the bottom discharging device 13.
In one embodiment, a support frame is arranged in the tank body 1, and the support frame is connected with the aeration device 2, so that the aeration pipe 23 is at a set height.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, the appended claims are intended to be construed to include preferred embodiments and all such changes and/or modifications as fall within the scope of the invention, and all such changes and/or modifications as are made to the embodiments of the present invention are intended to be covered by the scope of the invention.
Claims (5)
1. An aeration device, comprising:
the air inlet pipe (20), the air inlet pipe (20) conveys the outside air into the tank body (1);
the gas outlet pipe (21) is used for conveying gas generated in the fermentation process in the tank body (1) to the outside of the tank body (1); the gas outlet pipe comprises an inner part arranged in the tank body and an outer part arranged outside the tank body, and the inner part comprises a plurality of pipes arranged on the inner wall of the tank body and pipes arranged in the middle of the tank body; and
the aeration pipe is connected with the air inlet pipe and uniformly discharges the gas input by the air inlet pipe to each position of the tank body (1);
wherein, air enters the tank body (1) through the air inlet pipe (20) and is uniformly discharged into the tank body (1) through the aeration pipe (23), and gas generated after fermentation in the tank body (1) is discharged out of the tank body (1) through the air outlet pipe (21);
the end part of the air inlet pipe (20) is connected with an annular pipe (22), the aeration pipe (23) is vertically connected to the annular pipe (22), and a plurality of aeration holes (24) are arranged on the aeration pipe (23);
wherein the gas in the gas inlet pipe (20) enters the aeration pipe (23) through an annular pipe (22) and is discharged into the tank body (1) through the aeration hole (24);
a plurality of telescopic joints (25) are arranged on the aeration pipe (23), and the length of the aeration pipe (23) is adjusted through the telescopic joints (25);
the air inlet pipe (20) is connected with an aeration fan outside the tank body (1), the aeration fan transmits air to the annular pipe (22) and the aeration pipe (23) through the air inlet pipe (20), and provides pressure for discharging gas into the tank body (1) through the aeration hole (24);
the air outlet pipe (21) is connected with an induced draft fan outside the tank body (1), and the induced draft fan pumps out air in the tank body (1) through the air outlet pipe (21);
and an air purification device is arranged at the output end of the induced draft fan.
2. An aeration device according to claim 1, characterized in that said inlet pipe (20) and said outlet pipe (21) are heat exchanged by means of a heat exchanger.
3. An aerobic ecological moving bed, which is characterized by comprising:
a tank body (1),
the feeding device (11) is arranged at the top of the tank body (1), the feeding device (11) conveys sludge into the tank body (1), and the distributing device (12) is arranged below the feeding device (11);
an aeration device (2) arranged inside the tank (1), the aeration device (2) being according to claim 1 or 2, and the aeration device (2) being arranged below the feeding device (11), and the height of the aeration device (2) being lower than the stacking height of the sludge;
wherein, the aeration device (2) conveys outside air into the tank body (1), sludge is subjected to biological drying reaction under the action of oxygen, and the aeration device (2) also conveys gas generated in the fermentation process in the tank body (1) to the outside of the tank body (1).
4. An aerobic ecological moving bed according to claim 3, wherein the bottom of the tank (1) is provided with a discharge device (13), and the sludge is dried and discharged out of the tank (1) through the discharge device (13).
5. An aerobic ecological moving bed according to claim 4, wherein a support frame is arranged in the tank (1) and connected with the aeration device (2) to keep the aeration pipe (23) at a set height.
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| CN104773831A (en) * | 2015-03-24 | 2015-07-15 | 中国林业科学研究院林业新技术研究所 | Reaeration device and reaeration method for constructed wetland |
| CN207845288U (en) * | 2017-11-30 | 2018-09-11 | 天津保晟隆科技发展有限公司 | A kind of lake solar energy aeration purifier |
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| CN202343548U (en) * | 2011-12-02 | 2012-07-25 | 安徽省正大环境工程有限公司 | Silo type biosolid aerobic fermentation reactor |
| CN106145583A (en) * | 2016-05-12 | 2016-11-23 | 武汉乡愁庭院农业科技有限公司 | Mud rapid fermentation composting or system soil pipe-line system |
| CN210586320U (en) * | 2019-06-27 | 2020-05-22 | 南京万德斯环保科技股份有限公司 | Aeration and recharge combined system for landfill |
| CN110511857A (en) * | 2019-09-10 | 2019-11-29 | 宁波大学 | It is a kind of to can be carried out water supply in media-temperature dynamic regulation aerobic fermentation equipment |
| CN111790212A (en) * | 2020-07-23 | 2020-10-20 | 中农新科(苏州)有机循环研究院有限公司 | Waste gas recycling system for organic waste biological drying process |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104773831A (en) * | 2015-03-24 | 2015-07-15 | 中国林业科学研究院林业新技术研究所 | Reaeration device and reaeration method for constructed wetland |
| CN207845288U (en) * | 2017-11-30 | 2018-09-11 | 天津保晟隆科技发展有限公司 | A kind of lake solar energy aeration purifier |
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