CN110818493A - Bio-organic fertilizer prepared from thiourea waste residue and cyanamide waste residue - Google Patents
Bio-organic fertilizer prepared from thiourea waste residue and cyanamide waste residue Download PDFInfo
- Publication number
- CN110818493A CN110818493A CN201911351614.3A CN201911351614A CN110818493A CN 110818493 A CN110818493 A CN 110818493A CN 201911351614 A CN201911351614 A CN 201911351614A CN 110818493 A CN110818493 A CN 110818493A
- Authority
- CN
- China
- Prior art keywords
- fermentation
- thiourea
- cyanamide
- waste residue
- mixed material
- 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.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05C—NITROGENOUS FERTILISERS
- C05C9/00—Fertilisers containing urea or urea compounds
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
-
- 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 belongs to the field of biological fertilizer fermentation, and particularly relates to a biological organic fertilizer prepared from thiourea waste residues and cyanamide waste residues, in particular to a functional biological organic fertilizer prepared from thiourea and cyanamide waste residues and a preparation method thereof. The invention adopts industrial and agricultural and sideline product waste as the main material, reasonably matches other nutrients, and utilizes probiotics fermentation to prepare the environment-friendly organic fertilizer with low cost and high benefit. The method provided by the invention has the advantages of simple process and easily obtained raw materials, solves the problem of environmental pollution caused by industrial waste residues of thiourea and cyanamide, has higher economic benefit, and the prepared functional biological fertilizer not only contains a large amount of calcium and sulfur elements, but also can be used as a long-acting slow-release nitrogen fertilizer.
Description
Technical Field
The invention belongs to the field of biological fertilizer fermentation, and particularly relates to a biological organic fertilizer prepared from thiourea waste residues and cyanamide waste residues, in particular to a functional biological organic fertilizer prepared from thiourea and cyanamide waste residues and a preparation method thereof.
Background
Thiourea, also known as thiourea, is an important chemical raw material and an organic chemical intermediate. As a basic raw material, thiourea has extremely wide application in industrial production and daily life, can be used for preparing fumaric acid and hydrometallurgical gold, and can also be used as a reducing agent, a corrosion inhibitor, a stabilizer, a surface modifier, an inhibitor and the like.
In agriculture, thiourea can also be used as a bactericide, a rust remover, a potato germination promoter, a livestock fattening agent, a nitrification-inhibiting fertilizer, and the like. The addition of trace thiourea can inhibit the nitrification of soil and increase the adsorbability of soil. When used in nitrogen fertilizer, it can raise the fertilizer absorbing rate of plant by 30-50%.
Cyanamide is called cyanamide and aminomethyl, and is widely used as an important chemical raw material for manufacturing fine chemical products, medical raw materials and pesticide raw materials. The cyanamide can be used as a chemical intermediate to produce fine chemical products such as aminoguanidine bicarbonate, methylisourea sulfate, guanyl thiourea and the like; in the aspect of medicine, the cyanamide is mainly used for producing pharmaceutical raw materials such as cytarabine hydrochloride, sulfonamides, barbituric acid and the like. In the aspect of pesticides, the cyanamide can be used for producing spot-removing bactericides, herbicides and the like; the water solution can also be directly used as plant growth regulator, and has the functions of sterilization, disinsection, defoliation and the like, and has certain nitrogen fertilizer effect. In addition, the cyanamide can also be used for the synthesis of health products, feed additives, flame retardants and the like, has very wide application and has huge market demand.
H is mainly adopted in the prior thiourea industrial production in China2S-CaCN2The method is carried out. According to the synthetic method, every 1 ton of thiourea is synthesized, about 2-3 tons of solid waste residues are produced, and the thiourea waste residues contain a large amount of calcium hydroxide, carbon powder and thiourea. CO is adopted in the industrial production of cyanamide2-CaCN2In the method, the cyanamide waste residue contains a large amount of calcium carbonate, carbon powder, cyanamide and dicyandiamide. The environmental-friendly production chain has slow operation due to difficult waste residue recovery and high cost, a large amount of filter residues are stocked and sold, the environmental-friendly situation is always at a disadvantage, and the economic benefit is low.
Meanwhile, in the last two decades, with the control of the emission of atmospheric sulfur dioxide, the use of sulfur-free fertilizers and the planting of high-yield varieties, the sulfur carried away by crops from soil is increased, the input and output of the sulfur are seriously unbalanced, about 30 percent of soil in China is in sulfur deficiency, acid red soil and sandy soil in the south are in serious calcium deficiency, and the physiological calcium deficiency of fruit trees and vegetables is very common nationwide. The research on the sulfur and calcium nutrition of crops in both theory and application technology is insufficient, and the research has become the bottleneck of the efficient application of sulfur fertilizer and calcium fertilizer.
Disclosure of Invention
In view of the above situation, the invention mainly solves the problems of environmental protection and effective treatment of waste residues of thiourea and cyanamide, and provides a method for preparing a functional bio-fertilizer by fermenting the waste residues of thiourea and cyanamide.
The biological organic fertilizer is prepared by using thiourea and cyanamide waste residues as raw materials, adding agricultural and sideline product waste materials such as straws, rice bran, soybean meal, wheat bran and the like, and performing secondary fermentation.
The preparation method comprises the following specific steps:
(1) one-time fermentation
(1-1) uniformly mixing 50-70 parts of rice bran, 15-25 parts of soybean meal and 15-25 parts of wheat bran according to parts by weight to obtain a mixed material I;
(1-2) adding 10% -20% of thiourea waste residue into the mixed material I, and adding humic acid to adjust the pH value to 8.0 to obtain a mixed material II;
(1-3) adding molasses and a fermentation microbial inoculum into the mixed material II, adjusting the water content of the system to 30-50%, carrying out anaerobic fermentation at 30-40 ℃ for 24-36 h, then carrying out room temperature fermentation for 10-20 days, detecting the thiourea content to be 0.4% -0.6%, and stopping fermentation to obtain the primary fermentation fertilizer.
(2) Secondary fermentation
(2-1) preparing 95-98 parts of straws and 2-5 parts of urea by weight, and uniformly spraying the urea on the surface of crushed straws of 2-3 cm to obtain a mixed material III;
(2-2) adding 5% -10% of cyanamide waste residues and 40% -60% of primary fermentation fertilizer into the mixed material III, and fully mixing to obtain a mixed material IV;
(2-3) adding molasses and a secondary fermentation microbial inoculum into the mixed material IV, adjusting the water content of the system to 30-50%, building a pile, fermenting, starting pile turning when the temperature of the pile rises to 50 ℃, turning once every three days, and fermenting for 10-20 days to obtain the functional bio-organic fertilizer.
In order to ensure the optimal fermentation effect, the high-content thiourea has an inhibiting effect on microbial fermentation, the fermentation microbial agent selects bacillus cereus and EM (effective microorganisms) bacterial liquid capable of decomposing thiourea in the primary fermentation process, the preferable bacillus cereus selects the fermentation liquid of the bacillus cereus, and the volume ratio of the bacillus cereus fermentation liquid to the EM bacterial liquid is 2-5: 5-8, preferably the content of spores in the bacillus cereus fermentation liquor is 5-10 x 109CFU/ml, the bacillus cereus is used for degrading thiourea in the organic fertilizer, and the fertilizer has the ammonia nitrogen slow-release effect. The zymophyte agent used for the secondary fermentation is EM bacterial liquid.
In the invention, preferably, the EM bacterial liquid is purchased from Zhengzhou Baiyibao biotechnology limited, and the bacillus cereus is the bacillus cereus (with the preservation number of CGMCC NO.16152) described in the patent CN 201811617086.
And (3) performing primary fermentation, wherein the adding amount of the molasses is 0.5-1% of the mass of the mixed material II, and the adding amount of the fermentation bacteria agent is 2-5% of the mass of the mixed material II.
And (3) performing secondary fermentation, wherein the adding amount of the molasses is 0.5-1% of the mass of the mixed material IV, and the adding amount of the fermentation bacteria agent is 2-5% of the mass of the mixed material IV.
In the invention, the thiourea waste residue is produced in the thiourea production process by the traditional lime nitrogen-hydrogen sulfide method, and contains a large amount of calcium hydroxide, thiourea, silicon dioxide, carbon powder and the like, wherein the content of thiourea in the thiourea waste residue adopted in the invention is 2-5%, and the content of calcium hydroxide is 50-53%.
In the invention, the cyanamide waste residue is generated in the process of producing the cyanamide by a lime nitrogen-carbon dioxide method, and contains a large amount of calcium carbonate, the cyanamide, the dicyandiamide, carbon powder, silicon dioxide and the like, preferably, the cyanamide waste residue adopted in the invention contains 1-2% of the cyanamide, 1-2% of the dicyandiamide and 40-50% of the calcium carbonate.
In the invention, rice bran, bean pulp, wheat bran and straws are mainly used as nutrient substances in the fermentation process and provide nutrients required by the normal growth of strains; by adopting the proportion, reasonable carbon source and nitrogen source can be provided for later stage microorganism growth. In the invention, the water content of the raw materials of the rice bran, the soybean meal, the wheat bran and the straws is generally about 10 percent.
All the percentages in the present invention are not specifically indicated by mass percentage.
In the invention, because the cyanamide and the dicyandiamide have stronger inhibition effects on escherichia coli and salmonella, the method can play a role in inhibiting propagation of the escherichia coli and the salmonella at the probiotic proliferation stage in the early stage of secondary fermentation.
According to the invention, thiourea and cyanamide waste residues are fermented, and inorganic substances such as calcium element, sulfur element and the like in the waste residues are converted into a chelated state through microbial fermentation, so that the waste residues are more beneficial to absorption and utilization of crops.
The functional bio-organic fertilizer prepared by the method disclosed by the invention can promote the ammonia nitrogen absorption of crops due to the fact that the functional bio-organic fertilizer contains a small amount of thiourea, dicyandiamide and humic acid to inhibit the nitrification, contains high-content sulfur element and calcium element, and is more beneficial to plant absorption, transformation and utilization due to microbial fermentation; the method is used for the land lacking calcium and sulfur or the planting of economic crops with large calcium and sulfur demand. Especially for tomatoes, tobaccos, oranges and the like, can effectively improve the crop yield, improve the product quality and improve the planting economic benefit.
Detailed Description
The present invention will be described in further detail with reference to the following examples, but it should not be construed that the scope of the above subject matter is limited to the following examples. All the technologies realized based on the above contents of the present invention belong to the scope of the present invention, and the following embodiments are all completed by adopting the conventional prior art except for the specific description.
Example 1
A functional biological organic fertilizer is prepared from thiourea dregs, cyanamide dregs and agricultural by-product fertilizer through fermenting.
The thiourea waste residue comprises, by mass, 2-4% of thiourea, about 5% of carbon powder, about 2% of silicon dioxide, 50-53% of calcium hydroxide and about 35% of water.
The cyanamide waste residue comprises, by mass, 1-2% of cyanamide, 1-2% of dicyandiamide, 42-45% of calcium carbonate, about 7% of carbon powder, about 3% of silicon dioxide and about 45% of water.
The preparation method comprises the following specific steps:
(1) one-time fermentation
(1-1) uniformly mixing 60 parts of rice bran, 20 parts of soybean meal and 20 parts of wheat bran to obtain a mixture I;
(1-2) adding 20% of thiourea waste residue into the mixed material I, and adding humic acid to adjust the pH value to 8.0 to obtain a mixed material II;
(1-3) adding molasses and a fermentation microbial inoculum into the mixed material II, adjusting the water content of the system to 40%, carrying out anaerobic fermentation at 35 ℃ for 36h, and then carrying out fermentation at room temperature.
(1-4) detecting the content of thiourea to be 0.5%, and stopping fermentation to obtain the primary fermented fertilizer.
(2) Secondary fermentation
(2-1) crushing 97 parts of 2-3 cm straws, and uniformly spraying 3 parts of urea on the surfaces of the straws to obtain a mixed material III;
(2-2) adding 10% of cyanamide waste residue and 40% of primary fermentation fertilizer into the mixed material III, and fully mixing to obtain a mixed material IV;
(2-3) adding molasses and a fermentation microbial inoculum into the mixed material IV, adjusting the water content of the system to 45%, building a pile, fermenting, turning the pile when the temperature of the pile rises to 50 ℃, turning once every three days, and fermenting for 15 days to obtain the functional biological organic fertilizer.
In the step (1-3), the addition amount of the molasses is 1% of the mass of the mixed material II, the zymophyte is a mixed bacterial liquid of CGMCC NO.16152 bacillus cereus fermentation liquid and EM bacterial liquid according to a ratio (volume ratio) of 5:5, the addition amount of the zymophyte is 4% of the mass of the mixed material II, and the spore content in the bacillus cereus fermentation liquid is 10 x 109CFU/ml。
In the step (2-3), the adding amount of the molasses is 1% of the mass of the mixed material IV, the fermenting agent is EM bacterial liquid, and the adding amount of the molasses is 2% of the mass of the mixed material IV.
Example 2
A functional biological organic fertilizer is prepared from thiourea dregs, cyanamide dregs and agricultural by-product fertilizer through fermenting.
The thiourea waste residue comprises, by mass, 3-5% of thiourea, about 5% of carbon powder, about 2% of silicon dioxide, 50-53% of calcium hydroxide and about 35% of water.
The cyanamide waste residue comprises, by mass, 1-2% of cyanamide, 1-2% of dicyandiamide, 40-45% of calcium carbonate, about 7% of carbon powder, about 2-3% of silicon dioxide and about 35% of water.
The preparation method comprises the following specific steps:
(1) one-time fermentation
(1-1) uniformly mixing 50 parts of rice bran, 25 parts of soybean meal and 25 parts of wheat bran to obtain a mixture I;
(1-2) adding 15% of thiourea waste residue into the mixed material I, and adding humic acid to adjust the pH value to 8.0 to obtain a mixed material II;
(1-3) adding molasses and a fermentation microbial inoculum into the mixed material II, adjusting the water content of the system to 35%, carrying out anaerobic fermentation at 35 ℃ for 24h, and carrying out fermentation at room temperature.
(1-4) detecting the thiourea content to be 0.4-0.6%, and stopping fermentation to obtain the primary fermentation fertilizer.
(2) Secondary fermentation
(2-1) crushing 95 parts of 2-3 cm straws, and uniformly spraying 5 parts of urea on the surfaces of the straws to obtain a mixed material III;
(2-2) adding 10% of cyanamide waste residue and 60% of primary fermentation fertilizer into the mixed material III, and fully mixing to obtain a mixed material IV;
(2-3) adding molasses and a fermentation microbial inoculum into the mixed material IV, adjusting the water content of the system to 45%, building a pile, fermenting, turning the pile when the temperature of the pile rises to 50 ℃, turning once every three days, and fermenting for 18 days to obtain the functional biological organic fertilizer.
In the step (1-3), the addition amount of the molasses is 1% of the mass of the mixed material II, the zymophyte is a mixed bacterial liquid of CGMCC NO.16152 bacillus cereus fermentation liquid and EM bacterial liquid according to the proportion (volume ratio) of 3:7, the addition amount of the zymophyte is 5% of the mass of the mixed material II, and the spore content in the bacillus cereus fermentation liquid is 8 x 109CFU/ml。
In the step (2-3), the adding amount of the molasses is 1% of the mass of the mixed material IV, the fermenting agent is EM bacterial liquid, and the adding amount of the molasses is 4% of the mass of the mixed material IV.
Example 3
A functional biological organic fertilizer is prepared from thiourea dregs, cyanamide dregs and agricultural by-product fertilizer through fermenting.
The thiourea waste residue comprises, by mass, 3-5% of thiourea, about 5% of carbon powder, about 2% of silicon dioxide, 50-53% of calcium hydroxide and about 25-35% of water.
The cyanamide waste residue comprises, by mass, 1-2% of cyanamide, 1-2% of dicyandiamide, 45-50% of calcium carbonate, about 5% of carbon powder, about 2-3% of silicon dioxide and about 30% of water.
The preparation method comprises the following specific steps:
(1) one-time fermentation
(1-1) uniformly mixing 70 parts of rice bran, 15 parts of soybean meal and 15 parts of wheat bran to obtain a mixture I;
(1-2) adding 10% of thiourea waste residue into the mixed material I, and adding humic acid to adjust the pH value to 8.0 to obtain a mixed material II;
(1-3) adding molasses and a fermentation microbial inoculum into the mixed material II, adjusting the water content of the system to 50%, carrying out anaerobic fermentation at 35 ℃ for 30h, and carrying out fermentation at room temperature.
(1-4) detecting the thiourea content to be 0.4-0.6%, and stopping fermentation to obtain the primary fermentation fertilizer.
(2) Secondary fermentation
(2-1) crushing 98 parts of 2-3 cm straws, and uniformly spraying 2 parts of urea on the surfaces of the straws to obtain a mixed material III;
(2-2) adding 5% of cyanamide waste residues and 50% of primary fermentation fertilizer into the mixed material III, and fully mixing to obtain a mixed material IV;
(2-3) adding molasses and a fermentation microbial inoculum into the mixed material IV, adjusting the water content of the system to 45%, building a pile, fermenting, turning the pile when the temperature of the pile rises to 50 ℃, turning once every three days, and fermenting for 10 days to obtain the functional biological organic fertilizer.
In the step (1-3), the addition amount of the molasses is 1% of the mass of the mixed material II, the zymophyte is a mixed bacterial liquid of CGMCC NO.16152 bacillus cereus fermentation liquid and EM bacterial liquid according to the ratio of 2:8 (volume ratio), the addition amount of the zymophyte is 2% of the mass of the mixed material II, and the spore content in the bacillus cereus fermentation liquid is 5 x 109CFU/ml。
In the step (2-3), the adding amount of the molasses is 1% of the mass of the mixed material IV, the fermenting agent is EM bacterial liquid, and the adding amount of the molasses is 5% of the mass of the mixed material IV.
After the functional biological organic fertilizer of each embodiment is detected, the product indexes are as follows:
the organic fertilizer produced by the method disclosed by the invention contains a small amount of thiourea, dicyandiamide and humic acid, so that the nitrification is inhibited, the ammonia nitrogen absorption of crops can be promoted, and the organic fertilizer contains high-content sulfur element and calcium element, and is more beneficial to plant absorption, transformation and utilization due to microbial fermentation; meanwhile, the industrial waste residues of thiourea and cyanamide can be effectively utilized, the environmental pollution is solved, waste is changed into valuable, and the economic benefit is created; the produced organic fertilizer is used for special crops, can provide sufficient nitrogen, sulfur and calcium, improves the product quality, can effectively improve the crop yield, reduces the production cost, and has obvious social and economic benefits.
Claims (7)
1. A bio-organic fertilizer prepared from thiourea waste residues and cyanamide waste residues is characterized in that the preparation method comprises the following steps:
(1) one-time fermentation
(1-1) uniformly mixing 50-70 parts of rice bran, 15-25 parts of soybean meal and 15-25 parts of wheat bran according to parts by weight to obtain a mixed material I;
(1-2) adding 10% -20% of thiourea waste residue into the mixed material I, and adding humic acid to adjust the pH value to 8.0 to obtain a mixed material II;
(1-3) adding molasses and a fermentation microbial inoculum into the mixed material II, adjusting the water content of a system to 30-50%, carrying out anaerobic fermentation at 30-40 ℃ for 24-36 h, then carrying out room temperature fermentation for 10-20 days, detecting the thiourea content to be 0.4% -0.6%, and stopping fermentation to obtain a primary fermentation fertilizer;
(2) secondary fermentation
(2-1) preparing 95-98 parts of straws and 2-5 parts of urea by weight, and uniformly spraying the urea on the surfaces of the straws to obtain a mixed material III;
(2-2) adding 5% -10% of cyanamide waste residues and 40% -60% of primary fermentation fertilizer into the mixed material III, and fully mixing to obtain a mixed material IV;
(2-3) adding molasses and a secondary fermentation microbial inoculum into the mixed material IV, adjusting the water content of the system to 30-50%, building a pile, fermenting, starting pile turning when the temperature of the pile rises to 50 ℃, turning once every three days, and fermenting for 10-20 days to obtain the functional bio-organic fertilizer.
2. The bio-organic fertilizer prepared from thiourea waste residue and cyanamide waste residue as claimed in claim 1, wherein the fermentation bacterial agent in the primary fermentation process is bacillus cereus and EM bacterial liquid, and the fermentation bacterial agent in the secondary fermentation process is EM bacterial liquid.
3. The bio-organic fertilizer prepared from thiourea waste residue and cyanamide waste residue as claimed in claim 2, wherein the bacillus cereus is a fermentation liquid of the bacillus cereus, and the volume ratio of the bacillus cereus fermentation liquid to the EM bacterial liquid is 2-5: 5 to 8.
4. The bio-organic fertilizer prepared from thiourea waste residue and cyanamide waste residue as claimed in claim 3, wherein the spore content of the Bacillus cereus fermentation liquid is 5-10 x 109CFU/ml。
5. The bio-organic fertilizer prepared from thiourea waste residue and cyanamide waste residue as claimed in claim 1, is characterized in that, in the primary fermentation, the addition amount of molasses is 0.5-1% of the mass of the mixture II, and the addition amount of the fermentation inoculum is 2-5% of the mass of the mixture II; and (3) performing secondary fermentation, wherein the adding amount of the molasses is 0.5-1% of the mass of the mixed material IV, and the adding amount of the fermentation bacteria agent is 2-5% of the mass of the mixed material IV.
6. The bio-organic fertilizer prepared from thiourea waste residues and cyanamide waste residues according to claim 1, wherein the thiourea waste residues are thiourea waste residues generated in a thiourea production process by a traditional lime nitrogen-hydrogen sulfide method, the thiourea content in the thiourea waste residues is 2-5%, and the calcium hydroxide content is 50-53%.
7. The bio-organic fertilizer prepared from thiourea waste residue and cyanamide waste residue as claimed in claim 1, wherein the cyanamide waste residue is generated in the process of producing cyanamide by lime nitrogen-carbon dioxide method, and the cyanamide waste residue contains 1% -2% of cyanamide, 1% -2% of dicyandiamide and 40% -50% of calcium carbonate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911351614.3A CN110818493A (en) | 2019-12-23 | 2019-12-23 | Bio-organic fertilizer prepared from thiourea waste residue and cyanamide waste residue |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911351614.3A CN110818493A (en) | 2019-12-23 | 2019-12-23 | Bio-organic fertilizer prepared from thiourea waste residue and cyanamide waste residue |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110818493A true CN110818493A (en) | 2020-02-21 |
Family
ID=69546363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911351614.3A Pending CN110818493A (en) | 2019-12-23 | 2019-12-23 | Bio-organic fertilizer prepared from thiourea waste residue and cyanamide waste residue |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110818493A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109468251A (en) * | 2018-12-27 | 2019-03-15 | 黄河三角洲京博化工研究院有限公司 | The method of one plant of thiocarbamide degradation bacteria strains and the application bacterial strain processing waste water containing thiocarbamide |
| CN111606756A (en) * | 2020-06-29 | 2020-09-01 | 黄河三角洲京博化工研究院有限公司 | Method for producing liquid fertilizer by using corn steep liquor |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108821863A (en) * | 2018-07-12 | 2018-11-16 | 山东博华高效生态农业科技有限公司 | A kind of functional biological organic fertilizer and preparation method thereof |
-
2019
- 2019-12-23 CN CN201911351614.3A patent/CN110818493A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108821863A (en) * | 2018-07-12 | 2018-11-16 | 山东博华高效生态农业科技有限公司 | A kind of functional biological organic fertilizer and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 斯木吉德 等: ""堆肥中添加石灰氮分解产物对牛粪病原菌生长及堆肥产品安全性的影响"", 《黑龙江畜牧兽医》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109468251A (en) * | 2018-12-27 | 2019-03-15 | 黄河三角洲京博化工研究院有限公司 | The method of one plant of thiocarbamide degradation bacteria strains and the application bacterial strain processing waste water containing thiocarbamide |
| CN109468251B (en) * | 2018-12-27 | 2021-07-30 | 黄河三角洲京博化工研究院有限公司 | Thiourea degrading strain and method for treating thiourea-containing wastewater by using same |
| CN111606756A (en) * | 2020-06-29 | 2020-09-01 | 黄河三角洲京博化工研究院有限公司 | Method for producing liquid fertilizer by using corn steep liquor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101973803B (en) | High-efficiency multi-bacterial activity biogas residue biofertilizer and preparation method thereof | |
| CN101870608B (en) | Continuous cropping resisting biological organic and inorganic compound fertilizer and production method thereof | |
| CN105254452A (en) | Fertilizer for fruit trees and production method of fertilizer | |
| CN101717312A (en) | Biological-organic multielement fertilizer specially used for potato | |
| CN104016748A (en) | Organic compound fertilizer and manufacturing method thereof | |
| CN101130465A (en) | Grain type humic acid compound biological fertilizer and manufacturing method therefor | |
| CN104446708A (en) | Microbial fertilizer as well as preparation method and purpose thereof | |
| CN104030751A (en) | Bioorganic compound fertilizer and preparation method thereof | |
| CN111574283A (en) | Microbial fertilizer and preparation method thereof | |
| CN103333824A (en) | Microbial organic fertilizer and preparation method thereof | |
| CN106045642A (en) | Fertilizer specially used for planting watermelons | |
| CN107266249A (en) | A kind of prevention and control vegetable insect disease type double membrane slow release fertilizer and preparation method thereof | |
| CN102531786A (en) | Multi-element high-activity biological preparation | |
| CN109721421A (en) | A kind of preparation and application containing algal polysaccharides and fulvic acid composite synergistic phosphate fertilizer | |
| CN109438100A (en) | A kind of preparation method of the dedicated stress-resistant seaweed water-soluble fertilizer of fruits and vegetables | |
| CN109485473A (en) | A kind of dedicated seaweed microbial manure of rice in saline-alkali field | |
| CN1044806A (en) | Biologic compound fertilizer | |
| CN103044154B (en) | Humic acid long-acting compound fertilizer and preparation method thereof | |
| CN112694370A (en) | Bio-organic fertilizer for improving stress resistance of crops and preparation method and application thereof | |
| CN102633561B (en) | Nutritious set meal special for soilless culture of cucumber, and preparation method and application thereof | |
| CN108863550A (en) | A kind of dedicated disease prevention growth-promoting composite microbic bacterial fertilizer of tea tree and preparation method thereof | |
| CN108675904A (en) | A kind of organic fertilizer and preparation method thereof | |
| CN110818493A (en) | Bio-organic fertilizer prepared from thiourea waste residue and cyanamide waste residue | |
| CN105198512B (en) | A kind of method that double-microbial fermentation prepares gamma-polyglutamic acid organic fertilizer | |
| CN108558484A (en) | A kind of selenium-enriched microbe fertilizer and preparation method thereof |
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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200221 |