CN112299902A - Mineral additive for promoting fermentation of organic fertilizer and preparation and use methods thereof - Google Patents

Mineral additive for promoting fermentation of organic fertilizer and preparation and use methods thereof Download PDF

Info

Publication number
CN112299902A
CN112299902A CN202011189070.8A CN202011189070A CN112299902A CN 112299902 A CN112299902 A CN 112299902A CN 202011189070 A CN202011189070 A CN 202011189070A CN 112299902 A CN112299902 A CN 112299902A
Authority
CN
China
Prior art keywords
organic fertilizer
fermentation
mineral additive
promoting
preparation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN202011189070.8A
Other languages
Chinese (zh)
Other versions
CN112299902B (en
Inventor
蒋奇晋
吕书记
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN202011189070.8A priority Critical patent/CN112299902B/en
Publication of CN112299902A publication Critical patent/CN112299902A/en
Application granted granted Critical
Publication of CN112299902B publication Critical patent/CN112299902B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
    • C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
    • C05F17/20—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation using specific microorganisms or substances, e.g. enzymes, for activating or stimulating the treatment
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Biotechnology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biochemistry (AREA)
  • Tropical Medicine & Parasitology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Microbiology (AREA)
  • Molecular Biology (AREA)
  • Organic Chemistry (AREA)
  • Fertilizers (AREA)

Abstract

The invention discloses a mineral additive for promoting organic fertilizer fermentation, which mainly comprises 70-95% of gamma-dicalcium silicate. The preparation method comprises the following steps: (1) preparing materials: grinding the calcareous material and the siliceous material to the fineness of 150-300 meshes; (2) firing: mixing calcium material and silicon material according to CaO and SiO2The percentage ratio of the components is 2-2.5, and the mixture is fired at 1150-1450 ℃ for 0.5-3 hours; (3) grinding: and cooling the fired material, and grinding the cooled material into 80-200 meshes to obtain the mineral additive. The mineral additive can slowly and long-term improve the pH change of the organic fertilizer in the fermentation process, improve the content of nutrient components in the organic fertilizer, and can adsorb a large amount of CO through chemical reaction2、CH4、NH3、H2S, nitrogen oxides and other gases reduce the influence of organic fertilizer fermentation on the climate environment to a certain extent.

Description

Mineral additive for promoting fermentation of organic fertilizer and preparation and use methods thereof
Technical Field
The invention relates to the technical field of organic fertilizer production, in particular to a mineral additive for promoting organic fertilizer fermentation.
Background
At present, the main method for fermenting the organic fertilizer is to use microorganisms to carry out aerobic fermentation, and a large amount of small molecular organic acid, CO, can be generated in the fermentation process2、CH4、NH3、H2S and nitrogen oxides. On one hand, the pH value of the organic fertilizer is reduced in the fermentation process of the organic fertilizer, and the oxygen content in the compost is low, so that the activity of microorganisms is influenced to a great extent, and the fermentation time of the organic fertilizer is prolonged; on the other hand CO produced during fermentation2、CH4、NH3、H2Volatilization of gases such as S, nitrogen oxides and the like reduces the nutrient content of the organic fertilizer, and simultaneously causes large emission of greenhouse gases and influences the climate environment.
Aiming at the problems, the pH value of the organic fertilizer in the fermentation process can be improved by adding some alkaline substances such as lime and the like, and the oxygen content in the organic fertilizer fermentation process is increased by taking measures such as ventilation or pile turning and the like, so that the fermentation of the organic fertilizer is promoted. However, the pH value of the organic fertilizer at the initial fermentation stage is easily overhigh due to the addition of lime, and the propagation and growth of microorganisms are greatly influenced; on one hand, the ventilation or pile turning can cause a large amount of water to evaporate, which is not beneficial to the growth activity of microorganisms, and more CO still exists2、CH4、NH3、H2S and nitrogen oxides.
Disclosure of Invention
The invention provides a mineral additive for promoting organic fertilizer fermentation and a preparation method and a use method thereof, aiming at solving the defects in the prior art.
The purpose of the invention is realized by the following technical method:
a mineral additive for promoting fermentation of organic fertilizer. The gamma-dicalcium silicate comprises 70-95% of main components.
Compared with the prior art, the mineral additive disclosed by the invention can slowly and long-term improve the pH change of the organic fertilizer in the fermentation process, improve the content of nutrient components in the organic fertilizer, and adsorb a large amount of CO through chemical reaction2、CH4、NH3、H2S, nitrogen oxides and other gases reduce the influence of organic fertilizer fermentation on the climate environment to a certain extent.
Further, the preparation method of the mineral additive for promoting the fermentation of the organic fertilizer comprises the following steps:
s1, preparing materials: grinding the calcareous material and the siliceous material to the fineness of 150-300 meshes;
s2 firing: mixing a calcareous material and a siliceous material and then firing;
s3 grinding: and cooling the fired material, and grinding to obtain the mineral additive.
Further, in step S1, the calcareous material is one or more of limestone, dolomite, industrial by-product lime, or shells.
Furthermore, the siliceous material is one or more of silica, silica sand, wollastonite, bentonite or waste concrete.
Further, in step S2, CaO and SiO in the calcareous material and the siliceous material are formed2The percentage ratio of the components is 2-2.5.
Further, in step S2, the firing temperature is 1150-1450 ℃, and the firing time is 0.5-3 hours; in step S3, the grinding fineness is 80-200 meshes.
Meanwhile, the invention also provides a use method of the mineral additive for promoting the fermentation of the organic fertilizer.
A use method of a mineral additive for promoting organic fertilizer fermentation comprises the following steps:
s1: adding the mineral additive prepared by the method into an organic fertilizer fermentation material, fully turning and uniformly mixing;
s2: adding a certain amount of water and standing;
s3: adding a microbial agent suitable for fermenting the organic fertilizer, turning and uniformly mixing;
s4: and (4) fermenting the organic fertilizer according to the conventional technical measures of organic fertilizer fermentation.
Compared with the prior art, the mineral additive provided by the invention is simple and convenient to use, and can effectively reduce CO2、CH4、NH3、H2S and nitrogen oxides are volatilized into the atmosphere.
Further, the weight percentage of the mineral additive and the fermentation material in the step S1 is 5-20%.
Further, the water content of the whole fermentation material is 50-80% by adding water in the step S2.
Further, the standing time in the step S2 is 3-8 h.
For a better understanding and practice, the invention is described in detail below with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic diagram of sample collection in example 4, wherein A is a schematic diagram of distribution of sampling points in a horizontal direction, and B is a schematic diagram of distribution of sampling points in a vertical direction.
FIG. 2 shows the pH change of compost of example 4.
FIG. 3 shows the change of total nitrogen content of the compost of example 4.
FIG. 4 shows the change of the total phosphorus content of the compost of example 4.
FIG. 5 shows the variation of the total potassium content of the compost of example 4.
Figure 6 is the compost organic matter content change of example 4.
FIG. 7 shows the water-soluble carbon content change in example 4.
FIG. 8 shows the change of germination index of seeds of example 4.
FIG. 9 shows NH in example 43And (4) the discharge amount is changed.
FIG. 10 shows N in example 42O emissions variation.
FIG. 11 is CH of example 44And (4) the discharge amount is changed.
FIG. 12 is CO of example 42And (4) the discharge amount is changed.
Detailed Description
The invention will now be further elucidated with reference to specific embodiments.
Example 1
In this embodiment, a preparation method of a mineral additive for promoting fermentation of an organic fertilizer includes the following steps:
s1, preparing materials: grinding dolomite and silica sand serving as raw materials to the fineness of 150 meshes;
s2 firing: detection of CaO and SiO2Content, blending CaO and SiO in the raw materials2Percent (wt.)The content ratio is 2, and the firing time is 0.5 hour at 1150 ℃;
s3 grinding: and cooling the fired material, and grinding the material to 80 meshes to obtain the mineral additive.
The embodiment also provides a using method of the mineral additive. The preparation method comprises the following steps:
s1: adding 5 weight percent of mineral additive into the organic fertilizer fermented material, fully turning and uniformly mixing;
s2: adding a certain amount of water to keep the water content of the whole fermentation material at 50%, and standing for 3 hours;
s3: adding a microbial agent suitable for fermenting the organic fertilizer, turning and uniformly mixing;
s4: and (4) fermenting the organic fertilizer according to the conventional technical measures of organic fertilizer fermentation.
The mineral additive can slowly and long-term improve the pH change of the organic fertilizer in the fermentation process, improve the content of nutrient components in the organic fertilizer, and can adsorb a large amount of CO through chemical reaction2、CH4、NH3、H2S, nitrogen oxides and other gases reduce the influence of organic fertilizer fermentation on the climate environment to a certain extent. The action principle is as follows:
the main component of the fired mineral additive is dicalcium silicate, and the main crystal form of the mineral additive is gamma-dicalcium silicate, and the content of the gamma-dicalcium silicate is 70-95%. After the mineral additive is added into the fermentation material, the gamma-dicalcium silicate basically does not hydrate at normal temperature, so that the influence on the pH value of the organic fertilizer at the initial fermentation stage is low; however, the gamma-dicalcium silicate has higher carbonization activity, and in a high-concentration carbon dioxide environment, under the condition of water participation, the gamma-dicalcium silicate generates carbonization reaction to generate calcium silicate gel and calcium carbonate, so that the carbon dioxide concentration in the organic fertilizer is reduced, the oxygen concentration is increased, and the aerobic fermentation of the organic fertilizer can be promoted. At the same time, calcium silicate gel is on NH3、H2S and other gases have good adsorption effect, and form organic-inorganic composite colloid with small molecular acid generated in the organic fertilizer fermentation process, so that the decomposition of the organic fertilizer is promoted, and the content of organic matters is increased. And calcium carbonate can react with organic acid generated in the organic fertilizer fermentation process, so that the content of calcium in the organic fertilizer is improved, the polymerization of organic matters is promoted, and more stable organic aggregate is formed, thereby better exerting the effect of the organic fertilizer. Therefore, the mineral additive is added into the organic fertilizer to improve the content of nutrient elements, the content of organic matters and the content of water-soluble carbon in the organic fertilizer and reduce CO2、CH4Nitrogen oxide, NH3、H2And (4) discharging gases such as S and the like.
Example 2
In this embodiment, a preparation method of a mineral additive for promoting fermentation of an organic fertilizer includes the following steps:
s1, preparing materials: limestone and silica are used as raw materials, and are ground into 250 meshes of fineness;
s2 firing: detection of CaO and SiO2Content, blending CaO and SiO in the raw materials2The percentage ratio of the percentage content is 2.2, and the raw materials are fired at a high temperature of 1300 ℃ for 1.5 hours;
s3 grinding: and cooling the fired material, and grinding the material to 100 meshes to prepare the mineral additive.
The embodiment also provides a using method of the mineral additive. The preparation method comprises the following steps:
s1: adding 10 weight percent of mineral additive into the organic fertilizer fermented material, fully turning and uniformly mixing;
s2: adding a certain amount of water to keep the water content of the whole fermentation material at 70%, and standing for 5 hours;
s3: adding a microbial agent suitable for fermenting the organic fertilizer, turning and uniformly mixing;
s4: and (4) fermenting the organic fertilizer according to the conventional technical measures of organic fertilizer fermentation.
Example 3
In this embodiment, a preparation method of a mineral additive for promoting fermentation of an organic fertilizer includes the following steps:
s1, preparing materials: grinding shells and wollastonite serving as raw materials to the fineness of 250 meshes;
s2 firing: detection of CaO and SiO2Content, blending CaO and SiO in the raw materials2The percentage ratio of the percentage content is 2.5, and the mixture is fired at the high temperature of 1450 ℃ for 2.5 hours;
s3 grinding: and cooling the fired material, and grinding the material to 200 meshes to prepare the mineral additive.
The embodiment also provides a using method of the mineral additive. The preparation method comprises the following steps:
s1: adding 20 weight percent of mineral additive into the organic fertilizer fermented material, fully turning and uniformly mixing;
s2: adding a certain amount of water to keep the water content of the whole fermentation material at 80%, and standing for 8 hours;
s3: adding a microbial agent suitable for fermenting the organic fertilizer, turning and uniformly mixing;
s4: and (4) fermenting the organic fertilizer according to the conventional technical measures of organic fertilizer fermentation.
Example 4
Comparison of Effect test
Organic fertilizer fermentation comparative tests were carried out with the mineral additive of example 2 as the subject.
1. Test raw material and test design treatment
Organic fertilizer fermentation raw materials adopt chicken manure to ferment, and 4 treatments are designed in the experiment in total, and the respective is as follows:
CK: fermenting without adding mineral additives;
t1: adding mineral additives accounting for 5 percent of the weight of the raw materials for fermentation;
t2: adding mineral additives accounting for 10 percent of the weight of the raw materials for fermentation;
t3: adding mineral additive with the proportion of 20 percent of the weight of the raw materials for fermentation
2. Composting process
The composting process adopts groove type aerobic composting, each composting is 15 meters long, 2.5 meters wide and 1.5 meters high, and is matched with related equipment required by normal fermentation of organic fertilizer.
3. Sample collection
Please refer to fig. 1, which is a schematic diagram of sample collection, wherein a is a schematic diagram of distribution of sampling points in a horizontal direction, and B is a schematic diagram of distribution of sampling points in a vertical direction. Each time samples were taken in the middle of the compost (depth 0.7m), samples from point 1 and point 2 were mixed, samples from point 3 and point 4 were mixed, and samples from point 5 were taken separately. About 500g is sampled every time, and the sampling time is about 10:00 in the morning on 1 st, 3 rd, 11 th, 18 th and 32 th days of normal operation of the composting system respectively. All compost samples collected were divided into 2 portions and one compost fresh sample was stored at 4 ℃. The compost water extract is prepared by the following steps: oscillating, centrifuging and filtering the water in a volume ratio of 1: 10, and measuring the pH value of the supernatant. H for air drying of compost sample2SO4—H2O2And (4) after digestion, measuring total nitrogen by adopting a Kjeldahl nitrogen determination distillation method. The total phosphorus is measured by a vanadium-molybdenum-yellow colorimetric method, and the total potassium is measured by a flame spectrophotometer method.
4. Gas sample
And (3) collecting a gas sample by adopting a static box method in the composting process, wherein the gas concentration is measured by adopting a gas chromatography, and the ammonia gas is collected by adopting an atmospheric sampler-acid absorption method (GB/T14668-93). The sampling frequency is 1, 3, 11, 18 and 32 days.
5. Influence of mineral additives on the main parameters of composting
(1) Change of compost pH
Please refer to fig. 2, which shows the change of pH of compost. After the mineral agent is added, the pH value of the fertilizer in the early fermentation stage can be obviously improved, mineral additives in different proportions are added, the range of improving the pH value of the fertilizer is 0.87-1.41, after 11 days, the pH difference between each treatment is gradually reduced, the mineral additives in different proportions are added in the 32 th day after fermentation, the range of improving the pH value of the fertilizer is 0.14-0.31, in the whole fermentation process, the pH value of an organic fertilizer material added with the mineral agent is continuously and stably in the range of 8-9, the fermentation of the organic fertilizer can be better promoted, and the potential influence caused by ammonia volatilization in the later fermentation stage of the organic fertilizer due to overhigh pH value can be avoided.
(2) Variation of total nitrogen content in compost
Please refer to fig. 3, which shows the variation of total nitrogen content of compost. In 1-11 days of the initial period of composting, the total nitrogen content of different treatments shows a descending trend overall, CK and T1 treatments continuously decline, and T2 and T3 show descending after rising; then, after 11-18 days, each treatment shows a rapid increasing trend, and in the later period of composting, the total nitrogen content of T1 and T2 floats in a relatively stable interval, the total nitrogen content of T3 treatment slightly rises, and the total nitrogen content of CK treatment slightly falls, wherein the total nitrogen content of T2 treatment is the highest and reaches 18.2g/kg (1.82%), which is 32.8% higher than that of CK treatment.
(3) Variation of total phosphorus content in compost
Please refer to fig. 4, which shows the change of the total phosphorus content of the compost. The total phosphorus content of the composts treated in different ways showed an overall rising trend in the fermentation process, wherein the total phosphorus content of the composts treated in T2 is the highest, 15.6g/kg (1.56%), 1.28 times of the initial period of the composts, and 14.7% higher than that of CK on the 32 th day after fermentation.
(4) Variation of total potassium content in compost
Please refer to fig. 5, which shows the variation of the total potassium content of the compost. The total potassium content of the composts treated in different ways showed a slow increase in the whole composting process, wherein the increase in the treatment with T2 is the fastest to 18.7g/kg (1.87%) in 1-11 days of composting. The total potassium content of the T1 treatment gradually decreased from the 11d of the compost to the end of the compost, and the total potassium content of the treatment added with the mineral agent was higher than that of the CK treatment, wherein the total potassium content of the T2 treatment was 41.2% higher than that of the CK treatment.
(5) Variation of organic matter content of compost
Please refer to fig. 6, which shows the variation of organic content of compost. It can be seen that the change in organic matter for each treatment is decreasing, mainly because of the large amount of organic matter consumed. From the whole composting process, the organic content of the CK treatment is the lowest in all the composting periods compared with the other 3 treatments added with the mineral additive, which shows that the organic content of the compost can be improved by adding the mineral additive.
(6) Variations in water-soluble carbon in compost
Please refer to fig. 7, which shows the variation of the water-soluble carbon content. In 1-11 days of composting, the water-soluble carbon content of each treatment has a very consistent ascending trend; the CK treatment then slowly dropped, with the T1, T2, T3 treatments reaching a maximum at 18d with the progression of composting and then dropping; by the end of composting, the water-soluble carbon content treated with T3 was the highest, 51.4 g/kg.
(7) Variation of seed Germination Index (GI) of compost extract
Please refer to fig. 8, which shows the variation of germination index of seeds. GI of each treatment tends to increase as composting progresses. It is generally accepted that a GI of greater than 50% will be sufficient to determine that the compost is substantially non-toxic. In this composting test, GI of T1 treatment, T2 treatment and T3 treatment reached 50% or more at 18d, and GI of CK treatment reached 50% or more at 32 d. This indicates that all treatments meet the criteria for harmless treatment as composting progresses, and GI treated at T2 reaches a maximum of 72.6%.
6. Effect of mineral additives on compost gas emissions
(1) Mineral additive to compost NH3Effect of emissions
In the composting process, nitrogenous organic matters are converted into ammonium nitrogen under the action of microbial decomposition, and the ammonium nitrogen is dissipated to the air from the surface of a pile body in the form of ammonia under certain conditions (alkaline environment and external force influence), so that nitrogen loss and odor emission are caused. Please refer to fig. 9, which shows NH3And (4) the discharge amount is changed. The emission intensity of ammonia gas in the composting process is gradually reduced along with the composting process, the emission intensity CK of ammonia gas is the highest in each composting period between different treatments, and the emission intensity CK of ammonia gas is the lowest in T2 treatment with 10% of additives. Especially in the 11d compost, only CK treatment is 1.54 mg/(m)2H) 36.4% of the total amount of ammonia, the volatilization loss of ammonia is effectively reduced at the initial stage of composting.
(2) Mineral additive to compost H2Influence of S emission
As can be seen in table 1, the addition of mineral additives has a better effect on the removal of hydrogen sulphide. The final removal rates for the T1, T2, T3 treated hydrogen sulfide were 69.34%, 92.02% and 77.5%, respectively.
TABLE 1 Hydrogen sulfide release and Final removal for different treatments
Figure BDA0002752259040000071
(3) Mineral additive to compost N2Influence of O emissions
The nitrification and denitrification are N in the aerobic composting process of the livestock and poultry manure2The major route of O production. Please refer to fig. 10, which is N2O emissions variation. In the whole composting process, CK treatment shows a change rule of increasing rapidly and then decreasing progressively, and the treatment of the rest additive is in a trend of decreasing slowly. CK-treated compost 3d, N2The rise of O emission intensity is 11876 mg/(m)2H) 5.48 times, 13.56 times and 5.84 times the treatment with T1, T2, T3, respectively, further illustrating that mineral additives can reduce N2And generating and discharging O.
(4) Mineral additive to compost CH4Effect of emissions
CH produced during composting4The anaerobic decomposition of organic substances causes CH due to insufficient oxygen supply in the composting process4Is discharged in large quantities. Please refer to fig. 11, which is CH4And (4) the discharge amount is changed. The whole composting process CH4The emission intensity tends to increase. Control treatment and treatment with mineral additives CH4Emission intensity difference was large, CH treated with T24The lowest emission, CH treatment in CK of compost 3, 11, 18, 32d4The emission intensity was 10.6 times, 4.3 times, 3.6 times and 3.5 times of that of the T2 treatment, respectively. This result indicates that the exogenous additive improves the anaerobic environment of compost and reduces CH4And (4) discharging.
(5) Mineral additive to compost CO2Effect of emissions
About 50% of the total carbon in the composting process is CO2Is lost in the form of (1). Please refer to fig. 12, which shows CO2And (4) the discharge amount is changed. CK. T1 and T3 treatments peaked at 11 days of composting, with the highest CK treating CO2The emission intensity reached 9.32X 107mg/(m 2. h) at 11d, which is 34.8 times that of the T2 treatment. CK treatment of CO within 1-32 days2The total amount of emissions was 5.05 times the T2 treatment.
Compared with the prior art, the mineral additive disclosed by the invention has the advantages that the pH value in the organic fertilizer fermentation process is increased through slow hydration, the organic fertilizer is in a slightly alkaline environment in the fermentation process, and calcium silicate gel generated through carbonization reaction of the gamma-dicalcium silicate serving as the main component in the mineral additive can well adsorb CO2、CH4、NH3、H2S, nitrogen oxides and other gases, reduce the influence of the gases on the climate environment, increase the nutrient components in the organic fertilizer and promote the fermentation and decomposition of the organic fertilizer.
The above-mentioned embodiments only express one embodiment of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.

Claims (10)

1. A mineral additive for promoting organic fertilizer fermentation is characterized in that the main component of the mineral additive is 70-95% of gamma-dicalcium silicate.
2. The preparation method of the mineral additive for promoting the fermentation of the organic fertilizer is characterized by comprising the following steps of:
s1, preparing materials: grinding the calcareous material and the siliceous material to the fineness of 150-300 meshes;
s2 firing: mixing a calcareous material and a siliceous material and then firing;
s3 grinding: and cooling the fired material, and grinding to obtain the mineral additive.
3. The preparation method of the mineral additive for promoting the fermentation of the organic fertilizer, as claimed in claim 2, is characterized in that: in step S1, the calcareous material is one or more of limestone, dolomite, industrial by-product lime or shell.
4. The preparation method of the mineral additive for promoting the fermentation of the organic fertilizer, as claimed in claim 2, is characterized in that: in step S1, the siliceous material is one or more of silica, silica sand, wollastonite, bentonite, or waste concrete.
5. The preparation method of the mineral additive for promoting the fermentation of the organic fertilizer, as claimed in claim 2, is characterized in that: in step S2, CaO and SiO are contained in the calcareous material and the siliceous material2The percentage ratio of the components is 2-2.5.
6. The preparation method of the mineral additive for promoting the fermentation of the organic fertilizer, as claimed in claim 2, is characterized in that: in the step S2, the firing temperature is 1150-1450 ℃, and the firing time is 0.5-3 hours; in step S3, the grinding fineness is 80-200 meshes.
7. The application method of the mineral additive for promoting the fermentation of the organic fertilizer is characterized by comprising the following steps of:
s1: adding the mineral additive as defined in claim 1 into an organic fertilizer fermented material, fully turning and uniformly mixing;
s2: adding a certain amount of water and standing;
s3: adding a microbial agent suitable for fermenting the organic fertilizer, turning and uniformly mixing;
s4: and (4) fermenting the organic fertilizer according to the conventional technical measures of organic fertilizer fermentation.
8. Use of the mineral supplement according to claim 7, characterized in that the mineral supplement is prepared by the preparation method according to any of claims 2 to 6.
9. The use method of the organic fertilizer as claimed in claim 7, wherein the mineral additive in step S1 accounts for 5-20% of the fermented material.
10. The application method of the organic fertilizer as claimed in claim 7, wherein the water content of the whole fermented material is 50-80% by adding water in step S2, and the standing time is 3-8 h.
CN202011189070.8A 2020-10-30 2020-10-30 Mineral additive for promoting fermentation of organic fertilizer and preparation and use methods thereof Active CN112299902B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011189070.8A CN112299902B (en) 2020-10-30 2020-10-30 Mineral additive for promoting fermentation of organic fertilizer and preparation and use methods thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011189070.8A CN112299902B (en) 2020-10-30 2020-10-30 Mineral additive for promoting fermentation of organic fertilizer and preparation and use methods thereof

Publications (2)

Publication Number Publication Date
CN112299902A true CN112299902A (en) 2021-02-02
CN112299902B CN112299902B (en) 2022-04-19

Family

ID=74332615

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011189070.8A Active CN112299902B (en) 2020-10-30 2020-10-30 Mineral additive for promoting fermentation of organic fertilizer and preparation and use methods thereof

Country Status (1)

Country Link
CN (1) CN112299902B (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6447568B1 (en) * 2000-06-22 2002-09-10 Nisshin Flour Milling Inc. Composting accelerator
US20070272609A1 (en) * 2006-05-23 2007-11-29 Villanova University Reuse of waste materials via manure additive
CN107857688A (en) * 2017-12-20 2018-03-30 成都天杰有机农业发展有限公司 A kind of acid soil improvement organic fertilizer and preparation method thereof
AU2018282388A1 (en) * 2017-06-28 2019-01-17 Nippon Steel Corporation Steelmaking slag for fertilizer raw material, method for producing steelmaking slag for fertilizer raw material, method for producing fertilizer, and fertilizer application method
CN110699090A (en) * 2019-11-13 2020-01-17 刘建森 Fly ash-based soil water-retaining conditioner and preparation method thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6447568B1 (en) * 2000-06-22 2002-09-10 Nisshin Flour Milling Inc. Composting accelerator
US20070272609A1 (en) * 2006-05-23 2007-11-29 Villanova University Reuse of waste materials via manure additive
AU2018282388A1 (en) * 2017-06-28 2019-01-17 Nippon Steel Corporation Steelmaking slag for fertilizer raw material, method for producing steelmaking slag for fertilizer raw material, method for producing fertilizer, and fertilizer application method
CN107857688A (en) * 2017-12-20 2018-03-30 成都天杰有机农业发展有限公司 A kind of acid soil improvement organic fertilizer and preparation method thereof
CN110699090A (en) * 2019-11-13 2020-01-17 刘建森 Fly ash-based soil water-retaining conditioner and preparation method thereof

Also Published As

Publication number Publication date
CN112299902B (en) 2022-04-19

Similar Documents

Publication Publication Date Title
Hossain et al. Biochar and its importance on nutrient dynamics in soil and plant
Wu et al. Nitrogen transformations during co-composting of herbal residues, spent mushrooms, and sludge
CN109181706A (en) A kind of preparation method of saline-alkali soil conditioner
Matczuk et al. Effectiveness of the use of urease inhibitors in agriculture: a review
CN106831260B (en) Wine grape garden soil conditioner and preparation method thereof
CN107285824A (en) The compost method of nitrogen loss in a kind of reduction organic waste
KR102114840B1 (en) Manufacturing method for environment friendly fertilizer using livestock excretion
CN109837094B (en) Acid soil conditioner and application method thereof
CN108064662B (en) A kind of organic magnetic planting soil and preparation method thereof
CN112299902B (en) Mineral additive for promoting fermentation of organic fertilizer and preparation and use methods thereof
KR19990014365A (en) Manufacturing method of multifunctional porous ceramics
CN110845272B (en) Lignite compost product and application thereof in reducing emission of ammonia and nitrous oxide in soil
CN111994908A (en) Preparation method of biomass charcoal for reducing nitrogen and phosphorus in soil
JP2001130991A (en) Method of manufacturing compost from wood material
CN110342965A (en) A kind of production method of microbial manure
Gondek et al. Compost produced with addition of sewage sludge as a source of Fe and Mn for plants
RU2086522C1 (en) Method of organomineral fertilizer producing
CN115340424A (en) Coal gangue magnetized soil conditioner and preparation method thereof
Yang et al. Spent mushroom substrate as a substitute for chemical fertilizer changes N-cycling genes and reduces N2O emission in different textured soils
Luo et al. Enhancing the carbon content of coal gangue for composting through sludge amendment: A feasibility study
Nagy et al. Study of the mineralisation of pelletized chicken manure at different soil moisture content of a sandy soil.
Sidełko et al. Influence of decreasing supplementation to transformation of chemical forms of Ni, Zn and Cu during composting of sewage sludge
CN114315442B (en) Method for strengthening carbon-nitrogen conversion in composting process based on magnet particles
Ji Song et al. Agricultural practices to improve soil carbon sequestration in rice paddy soils
CN115322020B (en) Preparation method of organic fertilizer with high organic carbon soil retention rate

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant