CN105347875A - Rapid odorless composting method for fresh filter mud in cane sugar factory and treatment system - Google Patents
Rapid odorless composting method for fresh filter mud in cane sugar factory and treatment system Download PDFInfo
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- CN105347875A CN105347875A CN201510943680.5A CN201510943680A CN105347875A CN 105347875 A CN105347875 A CN 105347875A CN 201510943680 A CN201510943680 A CN 201510943680A CN 105347875 A CN105347875 A CN 105347875A
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- filter mud
- cane sugar
- sugar factory
- stack retting
- fresh
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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
- C05F17/90—Apparatus therefor
- C05F17/989—Flow sheets for biological or biochemical treatment
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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
- C05F17/40—Treatment of liquids or slurries
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F5/00—Fertilisers from distillery wastes, molasses, vinasses, sugar plant or similar wastes or residues, e.g. from waste originating from industrial processing of raw material of agricultural origin or derived products thereof
- C05F5/006—Waste from chemical processing of material, e.g. diestillation, roasting, cooking
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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
-
- 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
Abstract
The invention discloses a rapid odorless composting method for fresh filter mud in a cane sugar factory and a treatment system. The treatment system mainly comprises a fermentation field, a filtrate collecting tank, a sealing device, a venting device, an air drafting device and an odor treatment device. The rapid odorless composting method for fresh filter mud in the cane sugar factory by using the treatment system mainly comprises the following steps of <1> carrying out filter pressing; <2> composting; and <3> treating odor. If being composted by using the method, the fresh filter mud in the cane sugar factory can be completely composted after 20-30 days. By using the method, any other organic auxiliary materials are not needed to be added; in addition, the method is simple in operation and stable in technology; and water in filter mud is rapidly reduced through pretreatment, the filter mud is rapidly composted and has no obvious foul smells, components of the composted filter mud are simple, the treated filter mud can be used as a production raw material of an organic fertilizer, a biological organic fertilizer and an organic-inorganic compound fertilizer, and solid waste pollution of the cane sugar factory can be effectively eliminated.
Description
Technical field
The invention belongs to organic waste treatment and fermentation technical field, particularly relate to method and treatment system that the quick odorless stack retting of the fresh filter mud of a kind of cane sugar factory becomes thoroughly decomposed.
Background technology
At present, about the patent of organic solid castoff fermentation universal method, as: " fermentation process of organic solid castoff " (number of patent application 2015100788334, publication date 2015.06.10), it regulates C/N than being 20-35: 1, and water ratio is 55%-70%; Add 5-15% desulfurated plaster, be mixed to form the fermentation of heap body, ammonia nitrogen discharge can be reduced.But, existing organic solid castoff fermentation universal method is owing to lacking specific aim, be not suitable for the fermentative processing of the fresh filter mud of cane sugar factory, because sugarcane fresh filter mud water content is high, reduction moisture cannot be carried out by ordinary method, fermenting process can produce the foul smell such as ammonia, hydrogen sulfide, Trimethylamine 99, should strengthen ventilating management and reeky process during the fermentation.
About the patent report of cane sugar factory filter mud fermentation also has, as:
Biological organic fertilizer and the preparation method of main raw material " a kind of be with filter mud of sugarcane " (number of patent application 2015102074555, publication date 2015.08.05), by mixings such as filter mud of sugarcane and bagasse, lime-ash, coal dust, feces of livestock and poultry, offal powder, coffee groundss, after fermenting after adding turfy soil, urea, magnesium sulfate, boron powder, humic acid, EM microbial inoculum, produce bio-organic fertilizer.
(the patent No. 2014108133497 that " utilizes sugar mill mud and bagasse to produce the method for the organic raw material that becomes thoroughly decomposed ", publication date 2015.04.22), with the laggard aerobe fermentation of acting charitably of bagasse blending of weight ratio to be the sugar mill mud of 90.01%-99.9% and part by weight be 0.1%-9.99%, regular turning fermentation is the organic raw material that becomes thoroughly decomposed.
" with humus organic material material of cane sugar filter mud fermentation and preparation method thereof " (number of patent application 2012102480362, publication date 2012.10.24), wherein, filter mud: sugarcane marrow: peanut press pulp: system chaff: wheat skin: bacterium powder is 1: 0.1-0.15: 0.025-0.04: 0.05-0.08: 0.025-0.04: 0.003-0.004; Bacterium powder is mixed with system chaff, then mixes after adding wheat skin, peanut press pulp successively, finally add the mixing of sugarcane marrow, obtain masterbatch; By filter mud and the abundant stirring and evenly mixing of masterbatch, finally mixture is piled rectangular trapezoidal buttress body, heat up after maintaining a couple of days, then carry out turning, treat that a couple of days drops to normal temperature, obtain humus organic material material.Can soil physical and chemical property be improved after using, improve soil water-reataining fertilizer-keeping ability, utilization rate of fertilizer and crop yield, quality.
But, the fermentation process of the fresh filter mud of these cane sugar factories all needs to add other organic materials, troublesome poeration, the time of becoming thoroughly decomposed is longer, does not also make (as temperature, oxygen concentration, turning number of times, Odor control etc.) to fermentation condition and further studies.
Summary of the invention
The technical problem to be solved in the present invention is to provide the method and treatment system that the quick odorless stack retting of the fresh filter mud of a kind of cane sugar factory becomes thoroughly decomposed, this method without the need to add other any organic adjuvants and simple to operate, consistent, filter mud pre-treatment moisture decline fast, become thoroughly decomposed fast, simple without obvious foul odour, ripe filter mud composition.
For solving the problems of the technologies described above, the present invention is by the following technical solutions: the treatment system that the quick odorless stack retting of the fresh filter mud of cane sugar factory becomes thoroughly decomposed, primarily of fermentation field, filtrate collection pond, closed unit, breather, extractor fan and odor treating device composition; Filter mud heap body both sides in fermentation field is provided with longitudinal filtrate collection pond, is provided with filter screen above it; Closed unit comprises the shutter door of fermentation field surrounding and the shade at top; Breather comprises the gas blower, pneumatic tube and the gas transmission rod that connect successively, and gas transmission rod inserts in filter mud heap body; Extractor fan comprises vacuum fan and gas exhaust duct, and vacuum fan is arranged on shade, and vacuum fan connects odor treating device by gas exhaust duct; Odor treating device comprises borate processing tank and water tank, and gas exhaust duct, borate processing tank are successively connected with water tank, and borate processing tank is provided with borate liquid-inlet pipe and borate liquid discharge pipe, and water tank is provided with tank inlet pipe, tank drains pipe and chimney.
Filter mud heap height 1.2-2.0m; The wide 30-50cm of filter screen, its level height is lower than heap body floor height 3-5cm; 5-8m pressed by vacuum fan
2shadow area installs 1 vacuum fan, rated output>=1000W, and operating voltage is 220V; Gas transmission rod has upwards gas orifice and side direction gas orifice.
Use the method that the quick odorless stack retting of the fresh filter mud of the cane sugar factory of above-mentioned treatment system becomes thoroughly decomposed, mainly comprise the following steps: <1> press filtration, <2> stack retting, <3> Odor control.
Filter Press pressure>=6kg/cm that step <1> adopts
2, compaction pressure>=12MPa.
Step <2> stack retting is undertaken by following operation: first add fermenting agent to the fresh filter mud of cane sugar factory, the filter mud heap body that 1.2-2.0m is high is piled after stirring, and insert gas transmission rod, to make in heap body oxygen volume percent between 10%-15%, carry out turning when piling body core temperature and reaching 55-65 DEG C, turning over and throwing total degree is 10-15 time at every turn.
Step <3> Odor control is undertaken by following operation: the tail gas that vacuum fan is taken away carries out water conservancy diversion through gas exhaust duct and enters odor treating device, through the boric acid solution of 2% and water treatment first.
Genus bacillus in fermenting agent >=200,000,000/ml or 200,000,000/g, add by 3-6kg/t.
For current cane sugar factory filter mud fermentation Problems existing, contriver is on the basis of traditional fermentation methods, establish method and treatment system that the quick odorless stack retting of the fresh filter mud of a kind of cane sugar factory becomes thoroughly decomposed, its treatment system is primarily of fermentation field, filtrate collection pond, closed unit, breather, extractor fan and odor treating device composition.Use the method that this treatment system is become thoroughly decomposed to the quick odorless stack retting of the fresh filter mud of cane sugar factory, mainly comprise the following steps: <1> press filtration, <2> stack retting (comprising the processes such as seed dressing, ventilation, draining, turning), <3> Odor control (comprising the processes such as exhausting, boric acid absorption, water dissolution, liquid waste disposal).Wherein, press filtration can reduce the moisture content in fresh filter mud fast, stack retting by selecting high-efficiency fermenting bacterium, grasp the temperature of turning and number of times and carry out the effect that drainage measure etc. reaches quick composting, Odor control then by control best heap body ventilation condition, foul smell collection device is set and absorbs the object that treatment measures reach odorlessization fermentation.Application the present invention carries out stack retting to the fresh filter mud of cane sugar factory, can reach and become thoroughly decomposed completely after 20-30 days.This method without the need to add other any organic adjuvants and simple to operate, consistent, filter mud pre-treatment moisture decline fast, become thoroughly decomposed fast, simple without obvious foul odour, ripe filter mud composition, filter mud after process can be used as the raw materials for production of fertilizer, biological organic fertilizer, organic-inorganic compound mixed fertilizer, and the solid waste effectively can eliminating cane sugar factory is polluted.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the part-structure such as field and breather of fermenting in the fresh filter mud of the cane sugar factory of the present invention quick odorless stack retting treatment system of becoming thoroughly decomposed.
Fig. 2 is the schematic diagram of the part-structure such as closed unit, extractor fan and odor treating device in the fresh filter mud of the cane sugar factory of the present invention quick odorless stack retting treatment system of becoming thoroughly decomposed.
In figure: 1 filter mud heap body, 2 filtrate collection ponds, 3 gas blowers, 4 pneumatic tubes, 5 gas transmissions rods, 6 upwards gas orifices, 7 side direction gas orifices, 8 shutter doors, 9 shades, 10 vacuum fans, 11 gas exhaust ducts, 12 borate processing tankes, 13 borate liquid-inlet pipes, 14 borate liquid-inlet pipe switches, 15 borate liquid discharge pipe switches, 16 borate liquid discharge pipes, 17 water tanks, 18 tank inlet pipes, 19 tank inlet pipe switches, 20 tank drains pipe switches, 21 tank drains pipes, 22 chimneys.
Embodiment
The method that the quick odorless stack retting of the fresh filter mud of embodiment cane sugar factory of the present invention becomes thoroughly decomposed and treatment system
One, treatment system
As shown in Fig. 1 to 2, the treatment system that the quick odorless stack retting of the fresh filter mud of cane sugar factory of the present invention becomes thoroughly decomposed, primarily of fermentation field, filtrate collection pond, closed unit, breather, extractor fan and odor treating device composition; Filter mud heap body 1 (high 1.2-2.0m) both sides in fermentation field is provided with longitudinal filtrate collection pond 2, is provided with filter screen (the wide 30-50cm of filter screen, its level height is lower than heap body floor height 3-5cm) above it; Closed unit comprises the shutter door 8 of fermentation field surrounding and the shade 9 at top; Breather comprises the gas blower 3, pneumatic tube 4 and the gas transmission rod 5 that connect successively, and gas transmission rod inserts in filter mud heap body, and gas transmission rod has upwards gas orifice 6 and side direction gas orifice 7; Extractor fan comprises vacuum fan 10 and gas exhaust duct 11, and vacuum fan is arranged on shade, by about 5-8m
2shadow area installs 1 vacuum fan (rated output>=1000W, operating voltage 220V), and vacuum fan connects odor treating device by gas exhaust duct; Odor treating device comprises borate processing tank 12 and water tank 17, gas exhaust duct, borate processing tank are successively connected with water tank, borate processing tank is provided with borate liquid-inlet pipe 13 and borate liquid discharge pipe 16, and is respectively equipped with borate liquid-inlet pipe switch 14 and borate liquid discharge pipe switch 15; Water tank is provided with tank inlet pipe 19, tank drains pipe 21 and chimney 22, and is respectively equipped with tank inlet pipe switch 19 and tank drains pipe switch 20.
Two, working method
The method using the quick odorless stack retting of the fresh filter mud of the cane sugar factory of above-mentioned treatment system to become thoroughly decomposed, mainly comprises the following steps:
<1> press filtration
The press filtration of fresh for cane sugar factory filter mud input pressure filter is obtained filter cake, filter pressure>=6kg/cm
2, compaction pressure>=12MPa, the moisture of fresh filter mud can be reduced 15%-20% by press filtration operation.
<2> stack retting
First add fermenting agent (genus bacillus >=200,000,000/ml or 200,000,000/g to the fresh filter mud of cane sugar factory, 3-6kg/t), the long strip type filter mud heap body that 1.2-2.0m is high, width is slightly less than turnover throwing machine left and right two-wheeled inner distance is piled after stirring, inflate with gas blower and insert gas transmission rod (ventilator power >=1000W), gas blower operating power size is regulated to make in heap body oxygen volume percent between 10%-15%, carry out turning when piling body core temperature and reaching 55-65 DEG C, turning over and throwing total degree is 10-15 time (turnover throwing machine rated output >=118KW) at every turn.During stack retting, the shutter door at ceiling four sides is left behind.
<3> Odor control
The tail gas that vacuum fan is taken away carries out water conservancy diversion through gas exhaust duct and enters odor treating device, through the boric acid solution of 2% and water treatment first, and pump drainage waste liquid and boron make-up acid solution and water in time.
Three, principle of work
(1) under the physics compressing of pressure filter, the moisture content of cane sugar factory filter mud can reduce 15%-20%.
(2) select the high-efficiency fermenting bacterium that functional microorganism quantity is many, cellulose decomposer series bacillus >=200,000,000/ml or 200,000,000/g, when consumption is 3-6kg/t, show good ferment effect; Heap temperature reach microorganism growth optimum temps (namely about 60 DEG C) and close to the highest stand temperature time carry out turning, unobstructed pumping equipment is set to promote course of fermentation.
(3) when in heap body air, oxygen volume percent is between 10%-15%, the hydrogen sulfide that fermentation produces is minimum, shutter door has been installed on the upper edge of ceiling surrounding, shut shutter door can reduce foul smell and make to external diffusion most of foul smell be taken away by the extraction machine of ceiling, the boric acid solution of 2% effectively can be absorbed with the ammonia of irritating smell, and Trimethylamine 99 can water-soluble solution.
Four, result differentiates
After 20-30 days, carrying out anticipation by color, smell, feel, as being canescence, having light wine flavour, hand grabs tack-free and have loose sensation, tentatively judge that filter mud becomes thoroughly decomposed; Adopt analyzing and testing means to verify, moisture content is reduced to 38%-48% from initial 74%-76%, and pH is about 7.2-7.6, and C/N is about 15, confirms that filter mud becomes thoroughly decomposed.
Application examples 1
2015, Guangxi karst bio-fertilizer industry company limited (being positioned at Huan Jiang county town), under fair weather, reference example uses the present invention to carry out the fermentation of the fresh filter mud of cane sugar factory, and applicable cases is as follows:
(1) pressure filter selecting Shandong Jingjin Environmental Protection Equipment Co., Ltd. to produce, model is XZGMFS200/1250-0, filtration area: 200m
2, filter pressure 6kg/cm
2, compaction pressure 12MPa, can be reduced to 56%-59% by the moisture of fresh filter mud from 74%-76%.
(2) in filter cake, add zymocyte liquid (genus bacillus >=200,000,000/ml) 4kg/t, the heap body that 1.5m is high is piled after stirring, the wide 1.8m of heap body, line-spacing 0.5m, heap body both sides is provided with longitudinal filtrate collection pond (being provided with filter screen above), the wide 30-50cm of filter screen, level height is lower than heap body floor height 3-5cm, carry out turning when piling body core temperature and reaching 58-64 DEG C, turning over and throwing total degree is 12 times, turnover throwing machine rated output >=118KW at every turn.
(3) about 5m
2shadow area just at ceiling, 1 vacuum fan is installed (rated output is 1000W, operating voltage is 220V), tail gas pipeline after vacuum fan carries out water conservancy diversion, uses boric acid solution and the aqueous solution process of 2% respectively, and timely pump drainage waste liquid and boron make-up acid solution, the aqueous solution.
Result: 25 angel's filter muds reach and become thoroughly decomposed completely, produce without obvious foul smell.
Application examples 2
2015, Guangxi karst bio-fertilizer industry company limited (being positioned at Huan Jiang county town), under rainy weather, reference example uses the present invention to carry out the fermentation of the fresh filter mud of cane sugar factory, and applicable cases is as follows:
(1) pressure filter selecting Shandong Jingjin Environmental Protection Equipment Co., Ltd. to produce, model is XZGMFS200/1250-0, filtration area: 200m
2, filter pressure 6kg/cm
2, compaction pressure 12MPa, can be reduced to 56%-59% by the moisture of fresh filter mud from 74%-76%.
(2) in filter cake, add zymophyte pulvis (genus bacillus >=200,000,000/g) 4kg/t, the heap body that 1.5m is high is piled after stirring, the wide 1.8m of heap body, line-spacing 0.5m, and insert rod type ventilation plant, ventilator power 1000W, in control heap body air, oxygen volume percent is between 10%-15%, heap body both sides is provided with longitudinal filtrate collection pond (being provided with filter screen above), the wide 30-50cm of filter screen, level height is lower than heap body floor height 3-5cm, carry out turning when piling body core temperature and reaching 58-62 DEG C at every turn, turning over and throwing total degree is 15 times, turnover throwing machine rated output >=118KW.
(3) about 5m
2shadow area just at ceiling, 1 vacuum fan is installed (rated output is 1000W, operating voltage is 220V), tail gas pipeline after vacuum fan carries out water conservancy diversion, uses boric acid solution and the aqueous solution process of 2% respectively, and timely pump drainage waste liquid and boron make-up acid solution, the aqueous solution.
Result: 28 angel's filter muds reach and become thoroughly decomposed completely, produce without obvious foul smell.
Claims (7)
1. the fresh filter mud of a cane sugar factory quick odorless stack retting treatment system of becoming thoroughly decomposed, is characterized in that primarily of fermentation field, filtrate collection pond, closed unit, breather, extractor fan and odor treating device composition; Filter mud heap body both sides in described fermentation field is provided with longitudinal filtrate collection pond, is provided with filter screen above it; Described closed unit comprises the shutter door of fermentation field surrounding and the shade at top; Described breather comprises the gas blower, pneumatic tube and the gas transmission rod that connect successively, and gas transmission rod inserts in filter mud heap body; Described extractor fan comprises vacuum fan and gas exhaust duct, and vacuum fan is arranged on shade, and vacuum fan connects odor treating device by gas exhaust duct; Described odor treating device comprises borate processing tank and water tank, and gas exhaust duct, borate processing tank are successively connected with water tank, and borate processing tank is provided with borate liquid-inlet pipe and borate liquid discharge pipe, and water tank is provided with tank inlet pipe, tank drains pipe and chimney.
2. the fresh filter mud of the cane sugar factory according to claim 1 quick odorless stack retting treatment system of becoming thoroughly decomposed, is characterized in that: described filter mud heap height 1.2-2.0m; The wide 30-50cm of described filter screen, its level height is lower than heap body floor height 3-5cm; 5-8m pressed by described vacuum fan
2shadow area installs 1 vacuum fan, rated output>=1000W, and operating voltage is 220V; Described gas transmission rod has upwards gas orifice and side direction gas orifice.
3. use the method that the quick odorless stack retting of the fresh filter mud of cane sugar factory for the treatment of system described in claim 1 becomes thoroughly decomposed, it is characterized in that mainly comprising the following steps: <1> press filtration, <2> stack retting, <3> Odor control.
4. the fresh filter mud of the cane sugar factory according to claim 3 quick odorless stack retting method of becoming thoroughly decomposed, is characterized in that Filter Press pressure>=6kg/cm that step <1> adopts
2, compaction pressure>=12MPa.
5. the fresh filter mud of the cane sugar factory according to claim 3 quick odorless stack retting method of becoming thoroughly decomposed, it is characterized in that step <2> stack retting is undertaken by following operation: first add fermenting agent to the fresh filter mud of cane sugar factory, the filter mud heap body that 1.2-2.0m is high is piled after stirring, and insert gas transmission rod, to make in heap body oxygen volume percent between 10%-15%, carry out turning when piling body core temperature and reaching 55-65 DEG C, turning over and throwing total degree is 10-15 time at every turn.
6. the fresh filter mud of the cane sugar factory according to claim 3 quick odorless stack retting method of becoming thoroughly decomposed, it is characterized in that step <3> Odor control is undertaken by following operation: the tail gas that vacuum fan is taken away carries out water conservancy diversion through gas exhaust duct and enters odor treating device, through the boric acid solution of 2% and water treatment first.
7. the fresh filter mud of the cane sugar factory according to claim 1 quick odorless stack retting method of becoming thoroughly decomposed, is characterized in that: genus bacillus >=200,000,000/ml or 200,000,000/g in described fermenting agent, adds by 3-6kg/t.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107235754A (en) * | 2017-07-17 | 2017-10-10 | 福建农林大学 | Bedding and padding turn over the bedding and padding groove of throwing method and adopting said method |
| CN109279929A (en) * | 2018-11-15 | 2019-01-29 | 梅凡 | A kind of device and method preparing microbial organic fertilizer using sugaring waste fermentation |
| CN114538980A (en) * | 2022-04-27 | 2022-05-27 | 中国长江三峡集团有限公司 | Multilayer box type aerobic fermentation equipment and fermentation method |
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| CN104529578A (en) * | 2014-12-24 | 2015-04-22 | 广西力源宝科技有限公司 | Method for producing organic fertilizer by using sugar refining filter mud and bagasse |
| CN105000927A (en) * | 2015-05-18 | 2015-10-28 | 浙江海洋学院 | Composting and fermentation system mixing kitchen waste and municipal sludge |
| CN105084948A (en) * | 2015-09-28 | 2015-11-25 | 广西壮族自治区农业科学院甘蔗研究所 | Organic fertilizer with high humic acid content and preparation method thereof |
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| CN102557772A (en) * | 2012-03-12 | 2012-07-11 | 湖南大学 | Fermentation device for sludge compost treatment and treatment method using same |
| CN104529578A (en) * | 2014-12-24 | 2015-04-22 | 广西力源宝科技有限公司 | Method for producing organic fertilizer by using sugar refining filter mud and bagasse |
| CN105000927A (en) * | 2015-05-18 | 2015-10-28 | 浙江海洋学院 | Composting and fermentation system mixing kitchen waste and municipal sludge |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107235754A (en) * | 2017-07-17 | 2017-10-10 | 福建农林大学 | Bedding and padding turn over the bedding and padding groove of throwing method and adopting said method |
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| CN114538980A (en) * | 2022-04-27 | 2022-05-27 | 中国长江三峡集团有限公司 | Multilayer box type aerobic fermentation equipment and fermentation method |
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| CN105347875B (en) | 2017-07-21 |
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