CN105418195A - Method of preparing composite organic fertilizer from biological pharmacy mycelium sludge - Google Patents
Method of preparing composite organic fertilizer from biological pharmacy mycelium sludge Download PDFInfo
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- CN105418195A CN105418195A CN201511018805.XA CN201511018805A CN105418195A CN 105418195 A CN105418195 A CN 105418195A CN 201511018805 A CN201511018805 A CN 201511018805A CN 105418195 A CN105418195 A CN 105418195A
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- mycelium
- organic fertilizer
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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
- C05F3/00—Fertilisers from human or animal excrements, e.g. manure
-
- 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
- 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
-
- 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
- C05F5/008—Waste from biochemical processing of material, e.g. fermentation, breweries
-
- 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 method of preparing a composite organic fertilizer from biological pharmacy mycelium sludge, belongs to the field of sludge recycling, and aims to solve the problems that in the prior art, the biological pharmacy mycelium sludge contains a large amount of antibiotics, cannot be directly buried in soil as wastes, and pollutes the surrounding environment, soil, and plants. The method comprises the following steps: step one, preparing dried mycelium sludge through a microwave method, step two, evenly mixing dried mycelium sludge, added auxiliary materials, and composite fermenting inoculant, blending to obtain materials for fermentation, and carrying out fermentation in a sunlight green house; step three, carrying out aging, drying, and grinding, then adding inorganic elements (nitrogen, phosphor, and potassium), biological potassium bacteria, nitrogen fixing bacteria, phosphor bacteria, and synergist, and finally granulating the mixture to obtain the fertilizer. The sludge mainly made of mycelium is subjected to a pretreatment technology, then a microbial inoculant is added, the fermentation technology is optimized, at the same time nutrients are added; the mycelium residues are used to produce organic fertilizer, the damage of mycelium sludge to the surrounding environment, soil, and plants is avoided, the waste is converted into valuable resources, and the method has an economic value and market prospect.
Description
Technical field
The invention belongs to field of resource utilization of sludge, be specifically related to one and prepare multiple elements design organic fertilizer method.
Background technology
Antibiotics medicine is the more kind of current state internal consumption, great majority belong to biological products, namely extracted obtained by fermenting process, microorganism, the compound that produces in its vital process of plant, animal, have at low concentrations, Selective depression or kill the chemical substance of other microorganism or tumour cell ability is the important chemicals of the healthy and control animals and plants disease of mankind's Perceived control infectious diseases, health of body.
In antibiotic production process, mostly there is raw material availability low, refinement purity is low, in waste water, residual antibiotic content high, thus causes waste component complexity, organism and concentration of suspension high, and containing hard-degraded substance and the microbiotic having bacteriostatic action, be difficult to process.Production of antibiotics enterprise, all can not realize stable qualified discharge because of certain reason greatly, seriously compromise water body environment, and cause certain pollution to surrounding environment, along with microbiotic industrial expansion, antibiotic production wastewater has become one of serious source of pollution.
The source of antibiotic waste water mainly comprises the following aspects: fermentation waste water; Acid, alkali waste water and organic solvent waste water; The washes on equipment and floor etc.; Water coolant.
The source of antibiotic production wastewater comprises: 1. extract waste water: if this waste water is not containing final finished, BOD
5general at 4000 ~ 13000mg/l, when fermentation is abnormal, there is microbiological contamination when causing tank switching, COD, the BOD in waste water can be made
5there is wave efficiency in value, the BOD in general waste water
5(2-3) × 10 can be reached
4mg/l.In addition, also certain acid, alkali and organic solvent etc. are contained in waste water; 2. washes: washes comes from cleaning, canvas washing, the cleaning of separating machine and other scavenger section of fermentor tank and rinses ground.Water quality is generally similar to extraction waste water, but concentration is low, and general COD500-2500mg/l, BOD5 are 200-1500mg/l; 3. other waste water: as fermented escaped liquid, acid, alkali waste water etc.These are produced, and COD concentration of water are high, and in waste water, SS concentration is high, there is difficult for biological degradation and have the toxicant such as microbiotic of bacteriostatic action, water quality composition more complicated, and the little and intermittently discharged of the water yield, impact load is higher.If this water directly discharges, serious destruction will be caused to environment.
The water quality characteristic of antibiotic production wastewater: antibiotic production wastewater complicated component, organic concentration high resolution and colloidality solids concn are high, pH value often changes, temperature is higher, with color and smell, suspension content is high, easy generation foam, containing hard-degraded substance and the microbiotic having bacteriostatic action, and toxic.COD concentration high (5000-80000mg/l) is the main source of antibiotic waste water pollutent, wherein be mainly fermentation remaining stroma and nutrition, insoluble antibiotic ferment filtrate and microbiological contamination tank switching waste liquid etc. in absorption waste liquid that the raffinate in solvent leaching process, the still kettle raffinate of discharging after solvent reclaims, ion exchange process are discharged, water, as penicillin, COD15000-80000mg/l, terramycin COD8000-35000mg/l, aerobe method process has larger difficulty.SS concentration in waste water is high, and (500-25000mg/l, be wherein mainly the microbial cells of residual media matter and fermentation generation, if gentamicin SS is 8000mg/l, Penicillin S S is 5000-23000mg/l, and this is totally unfavorable to anaerobic UASB art breading.There is recalcitrant substance and have the toxicant such as microbiotic of bacteriostatic action, 0.1%-3% is only because microbiotic yield is lower in fermentation, and separation and Extraction yield only 60%-70%, therefore in most of waste liquid, residual antibiotic content is higher, under general condition, tetracycline residue concentration is 100-1000mg/l, terramycin is 500-1000mg/l, too high residual quantity can suppress aerobic sludge active, reduce treatment effect, for the inhibitory substance of toxic effect, anaerobic biological treatment has some superiority than Aerobic biological process.Vitriol isoconcentration is high as in Streptomycin sulphate waste liquid, and sulphate content is 3000mg/l, and gentamicin is 4000mg/l, has report, and more than sulphate content 1000mg/l has suppression to aerobic treatment.Water-quality constituents is complicated; intermediate metabolites; tensio-active agent (emulsion splitter, defoamer etc.); the industrial chemicals content such as high density soda acid, organic solvent residual in leaching process is high; this constituents easily causes pH value to fluctuate, and the high gentle unfavorable factor such as highly seasoned of colourity affects the normal activity of methanobacteria in anaerobic reactor.Large and the intermittently discharged of the water yield, impact load is high brings extreme difficulties as calculated to biological treatment, and produce the COD amount that 1kg tsiklomitsin produces and be equivalent to 0.4 ton, COD concentration is the waste water of 9218mg/l.
Antibiotic waste water treatment process: along with people are to the understanding gradually of microbiotic waste component and the further investigation to high efficiency reactor, existing increasing maturation process applies in the process of antibiotic waste water.Common technique is " light electrolysis-UASB-MBR technique ".The people such as Liu Hongli adopt " iron light electrolysis-anaerobism (UASB)-aerobic (MBR) " art breading antibiotic pharmaceutical wastewater.Water outlet reaches GB8978-96 secondary discharge standard.Dewatered by antibiotic waste water by sheet frame, the microbiotic mud of acquisition, usually used as waste, directly cannot carry out landfill, wherein a large amount of microbiotic has serious injury to plants and soil.It is how the problem that main mud carries out that innoxious and resource utilization is current important research by antibiotic bacterium filament.
Summary of the invention
The present invention seeks to solve current bio-pharmaceuticals mycelium mud, containing a large amount of microbiotic, directly cannot carry out landfill as waste, and surrounding environment soil and plant is had to the problem of damage, and provide a kind of applying biological pharmacy mycelium mud to prepare multiple elements design organic fertilizer method.
A kind of applying biological pharmacy mycelium mud prepares multiple elements design organic fertilizer method, carries out according to the following steps:
One, adopt micro-wave drying method to carry out drying to bio-pharmaceuticals mycelium mud, the power of microwave is 150 ~ 350W, and vacuum tightness is 1800 ~ 3000Pa, and time of drying is 3 ~ 7h, obtains dry mycelium mud;
Two, the mycelium mud of drying, interpolation auxiliary material and complex ferment microbial inoculum are puddled evenly by 90:5:5 by volume, obtain fermentation materials, then send into day-light greenhouse to ferment, when fermentation materials temperature reaches 55 DEG C ~ 65 DEG C, machinery stirring once, within 7 ~ 10 days, secondary fermentation temperature of charge is down to less than 30 DEG C, discharging, then sends into slaking workshop and carry out slaking;
Three, dry at 80 ~ 90 DEG C after slaking; inorganic nitrogen, phosphorus, potassium element, biological clamps bacterium, vinelandii, phosphorus bacteria and synergistic agent is added after pulverizing; then with waste fermentation natural pond liquid for binding agent; adopt tablets press to carry out granulation balling-up, namely complete applying biological pharmacy mycelium mud and prepare multiple elements design organic fertilizer.
The present invention adopts bio-pharmaceuticals mycelium mud to be that multiple elements design organic fertilizer prepared by raw material, is a kind of brand-new wastewater treatment and recycling strategy.The mud of the present invention based on mycelium, add nutritive element by pretreatment technology and microbiobacterial agent and fermentation technology optimization simultaneously, can realize utilizing mycelium waste residue to produce organic fertilizer, solve bio-pharmaceuticals mycelium mud has damage problem to surrounding environment soil and plant, turn waste into wealth simultaneously, there are certain economic worth and market outlook.
Accompanying drawing explanation
Fig. 1 is the pictorial diagram preparing gained multiple elements design organic fertilizer in embodiment.
Embodiment
Technical solution of the present invention is not limited to following cited embodiment, also comprises the arbitrary combination between each embodiment.
Embodiment one: present embodiment applying biological pharmacy mycelium mud prepares multiple elements design organic fertilizer method, carries out according to the following steps:
One, adopt micro-wave drying method to carry out drying to bio-pharmaceuticals mycelium mud, the power of microwave is 150 ~ 350W, and vacuum tightness is 1800 ~ 3000Pa, and time of drying is 3 ~ 7h, obtains dry mycelium mud;
Two, the mycelium mud of drying, interpolation auxiliary material and complex ferment microbial inoculum are puddled evenly by 90:5:5 by volume, obtain fermentation materials, then send into day-light greenhouse to ferment, when fermentation materials temperature reaches 55 DEG C ~ 65 DEG C, machinery stirring once, within 7 ~ 10 days, secondary fermentation temperature of charge is down to less than 30 DEG C, discharging, then sends into slaking workshop and carry out slaking;
Three, dry at 80 ~ 90 DEG C after slaking; inorganic nitrogen, phosphorus, potassium element, biological clamps bacterium, vinelandii, phosphorus bacteria and synergistic agent is added after pulverizing; then with waste fermentation natural pond liquid for binding agent; adopt tablets press to carry out granulation balling-up, namely complete applying biological pharmacy mycelium mud and prepare multiple elements design organic fertilizer.
In present embodiment step one, the initial aqueous rate of bio-pharmaceuticals mycelium mud is 80% ~ 95%, and after super-dry 3 ~ 7h, water ratio is down to 50% ~ 70%.
Adopt microwave drying to be conducive to removing moisture in present embodiment step one and the more important thing is there is crushing function to mycelial secondary metabolite simultaneously, reduce its toxicity to microorganism.
In present embodiment step 2, cellulose-decomposing bacteria, organophosphorus decomposer and nitrifier are commercially available prod.
In present embodiment step 3, biological clamps bacterium, vinelandii and phosphorus bacteria are commercially available prod.
Waste fermentation in present embodiment step 3 adopts fresh feces of livestock and poultry, agricultural waste, changing food waste or food processing waste to carry out normal fermentation.
Embodiment two: present embodiment and embodiment one unlike, in step one, the power of microwave is 300W, and vacuum tightness is 2500Pa, and time of drying is 5h.Other step and parameter identical with embodiment one.
Embodiment three: present embodiment and embodiment one or two unlike, when fermentation materials temperature reaches 55 DEG C in step 2, once, within 9 days, secondary fermentation temperature of charge is down to less than 30 DEG C to mechanical stirring.Other step and parameter identical with embodiment one or two.
Embodiment four: one of present embodiment and embodiment one to three unlike, in step 2, in fermenting process, pH value controls 7 ~ 8.Other step and parameter identical with one of embodiment one to three.
Present embodiment pH value is the essential condition of fermentable, and different microorganisms requires different with different fermentations mode pH, and reasonable adjusting is conducive to fermentation, reduces costs.
Embodiment five: one of present embodiment and embodiment one to four unlike, in step 2, auxiliary material is the stalk and feces of livestock and poultry pulverized, and C/N is than for 24:1.Other step and parameter identical with one of embodiment one to four.
Embodiment six: one of present embodiment and embodiment one to five unlike, in step 2, complex ferment microbial inoculum is the bacterium liquid of cellulose-decomposing bacteria or dry powder, the bacterium liquid of organophosphorus decomposer or dry powder, the bacterium liquid of nitrifier or dry powder; The volume ratio of three is 1:1:1; The OD value of bacterium liquid is 10
6individual/ml.Other step and parameter identical with one of embodiment one to five.
Embodiment seven: one of present embodiment and embodiment one to six unlike, the temperature of slaking in step 2 is 110 ~ 150 DEG C, and the time is 12 ~ 24h.Other step and parameter identical with one of embodiment one to six.
Embodiment eight: one of present embodiment and embodiment one to seven unlike, in step 3 after slaking at 85 DEG C dry.Other step and parameter identical with one of embodiment one to seven.
Embodiment nine: one of present embodiment and embodiment one to eight unlike, in step 3 pulverize adopt mechanical stirring pulverize.Other step and parameter identical with one of embodiment one to eight.
In present embodiment, mechanical stirring can also play the effect regulating temperature and oxygen supply.
Embodiment ten: one of present embodiment and embodiment one to nine unlike, the interpolation of inorganic nitrogen in step 3, phosphoric, potassium element, biological clamps bacterium, vinelandii, phosphorus bacteria and synergistic agent regulates according to the physico-chemical property of soil local in practical application.Other step and parameter identical with one of embodiment one to nine.
Embodiment 11: one of present embodiment and embodiment one to ten unlike, in step 3, synergistic agent is vitamins C.Other step and parameter identical with one of embodiment one to ten.
Embodiment 12: one of present embodiment and embodiment one to ten one unlike, the particle diameter of granulation balling-up in step 3 is 3 ~ 5mm.Other step and parameter identical with one of embodiment one to ten one.
Following examples are adopted to verify beneficial effect of the present invention:
Embodiment:
Applying biological pharmacy mycelium mud prepares multiple elements design organic fertilizer method, carries out according to the following steps:
One, adopt micro-wave drying method to carry out drying to bio-pharmaceuticals mycelium mud, the power of microwave is 300W, and vacuum tightness is 2500Pa, and time of drying is 5h, obtains dry mycelium mud;
Two, the mycelium mud of drying, interpolation auxiliary material and complex ferment microbial inoculum are puddled evenly by 90:5:5 by volume, obtain fermentation materials, then send into day-light greenhouse to ferment, when fermentation materials temperature reaches 55 DEG C, machinery stirring once, within 10 days, secondary fermentation temperature of charge is down to less than 30 DEG C, discharging, then sends into slaking workshop and carry out slaking;
Three, dry at 85 DEG C after slaking; inorganic nitrogen, phosphorus, potassium element, biological clamps bacterium, vinelandii, phosphorus bacteria and synergistic agent is added after pulverizing; then with waste fermentation natural pond liquid for binding agent; adopt tablets press to carry out granulation balling-up, namely complete applying biological pharmacy mycelium mud and prepare multiple elements design organic fertilizer.
In the present embodiment step one, the initial aqueous rate of bio-pharmaceuticals mycelium mud is 80% ~ 95%, and after super-dry 5h, water ratio is down to 55%.
In the present embodiment step 2, auxiliary material is the wheat stalk and feces of livestock and poultry pulverized, and C/N is than being 24:1.In step 2, complex ferment microbial inoculum is the bacterium liquid of cellulose-decomposing bacteria or dry powder, the bacterium liquid of organophosphorus decomposer or dry powder, the bacterium liquid of nitrifier or dry powder; The volume ratio of three is 1:1:1; The OD value of bacterium liquid is 10
6individual/ml.In step 2, cellulose-decomposing bacteria, organophosphorus decomposer and nitrifier are commercially available prod.In step 3, biological clamps bacterium, vinelandii and phosphorus bacteria are commercially available prod.In step 2, in fermenting process, pH value controls 7.The temperature of slaking in step 2 is 130 DEG C, and the time is 18h.The interpolation of inorganic nitrogen in step 3, phosphoric, potassium element, biological clamps bacterium, vinelandii, phosphorus bacteria and synergistic agent regulates according to the physico-chemical property of soil local in practical application.In step 3, synergistic agent is vitamins C.The particle diameter of grain balling-up in step 3 is 4mm.
Gained multiple elements design organic fertilizer is prepared in the present embodiment, as shown in Figure 1, uniform particles; After testing, gained multiple elements design organic fertilizer is rich in nutritive substance, than the volume increase more than 10% of single administration chemical fertilizer; The pollution of agricultural environment can be alleviated, be more suitable for production pollution-free green food.
Claims (10)
1. applying biological pharmacy mycelium mud prepares a multiple elements design organic fertilizer method, it is characterized in that it carries out according to the following steps:
One, adopt micro-wave drying method to carry out drying to bio-pharmaceuticals mycelium mud, the power of microwave is 150 ~ 350W, and vacuum tightness is 1800 ~ 3000Pa, and time of drying is 3 ~ 7h, obtains dry mycelium mud;
Two, the mycelium mud of drying, interpolation auxiliary material and complex ferment microbial inoculum are puddled evenly by 90:5:5 by volume, obtain fermentation materials, then send into day-light greenhouse to ferment, when fermentation materials temperature reaches 55 DEG C ~ 65 DEG C, machinery stirring once, within 7 ~ 10 days, secondary fermentation temperature of charge is down to less than 30 DEG C, discharging, then sends into slaking workshop and carry out slaking;
Three, dry at 80 ~ 90 DEG C after slaking; inorganic nitrogen, phosphorus, potassium element, biological clamps bacterium, vinelandii, phosphorus bacteria and synergistic agent is added after pulverizing; then with waste fermentation natural pond liquid for binding agent; adopt tablets press to carry out granulation balling-up, namely complete applying biological pharmacy mycelium mud and prepare multiple elements design organic fertilizer.
2. a kind of applying biological pharmacy mycelium mud according to claim 1 prepares multiple elements design organic fertilizer method, and it is characterized in that the power of microwave in step one is 300W, vacuum tightness is 2500Pa, and time of drying is 5h.
3. a kind of applying biological pharmacy mycelium mud according to claim 1 prepares multiple elements design organic fertilizer method, it is characterized in that when fermentation materials temperature reaches 55 DEG C in step 2, and once, within 9 days, secondary fermentation temperature of charge is down to less than 30 DEG C to mechanical stirring.
4. a kind of applying biological pharmacy mycelium mud according to claim 1 prepares multiple elements design organic fertilizer method, it is characterized in that in step 2, in fermenting process, pH value controls 7 ~ 8.
5. a kind of applying biological pharmacy mycelium mud according to claim 1 prepares multiple elements design organic fertilizer method, and it is characterized in that in step 2, auxiliary material is the stalk and feces of livestock and poultry pulverized, C/N is than being 24:1.
6. a kind of applying biological pharmacy mycelium mud according to claim 1 prepares multiple elements design organic fertilizer method, it is characterized in that complex ferment microbial inoculum in step 2 is the bacterium liquid of cellulose-decomposing bacteria or dry powder, the bacterium liquid of organophosphorus decomposer or dry powder, the bacterium liquid of nitrifier or dry powder; The volume ratio of three is 1:1:1; The OD value of bacterium liquid is 10
6individual/ml.
7. a kind of applying biological pharmacy mycelium mud according to claim 1 prepares multiple elements design organic fertilizer method, and it is characterized in that the temperature of slaking in step 2 is 110 ~ 150 DEG C, the time is 12 ~ 24h.
8. a kind of applying biological pharmacy mycelium mud according to claim 1 prepares multiple elements design organic fertilizer method, it is characterized in that pulverizing in step 3 adopting mechanical stirring to pulverize.
9. a kind of applying biological pharmacy mycelium mud according to claim 1 prepares multiple elements design organic fertilizer method, it is characterized in that in step 3, synergistic agent is vitamins C.
10. a kind of applying biological pharmacy mycelium mud according to claim 1 prepares multiple elements design organic fertilizer method, it is characterized in that the particle diameter of granulation balling-up in step 3 is 3 ~ 5mm.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109824391A (en) * | 2019-03-26 | 2019-05-31 | 北京科技大学 | A kind of tylosin dreg compost method of resource |
| WO2022222357A1 (en) * | 2021-04-23 | 2022-10-27 | 湖北富邦科技股份有限公司 | Soil conditioner and preparation method therefor |
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| CN1923759A (en) * | 2006-09-18 | 2007-03-07 | 广东省农业科学院土壤肥料研究所 | Refined fertilizer produced from sludge and producing method thereof |
| CN102649647A (en) * | 2011-02-23 | 2012-08-29 | 吉林师范大学 | Method for rapid composting by combining sludge of different types |
| CN104355759A (en) * | 2014-11-20 | 2015-02-18 | 福建省奥格生物工程有限公司 | Garden flower/tree matrix fertilizer produced from antibiotic bacterium slag and preparation method thereof |
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Patent Citations (4)
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| CN1478759A (en) * | 2003-06-05 | 2004-03-03 | 上海复洁环境科技工程有限公司 | Sludge granuler fertilizer and its production process |
| CN1923759A (en) * | 2006-09-18 | 2007-03-07 | 广东省农业科学院土壤肥料研究所 | Refined fertilizer produced from sludge and producing method thereof |
| CN102649647A (en) * | 2011-02-23 | 2012-08-29 | 吉林师范大学 | Method for rapid composting by combining sludge of different types |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109824391A (en) * | 2019-03-26 | 2019-05-31 | 北京科技大学 | A kind of tylosin dreg compost method of resource |
| WO2022222357A1 (en) * | 2021-04-23 | 2022-10-27 | 湖北富邦科技股份有限公司 | Soil conditioner and preparation method therefor |
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