CN112479792A - Preparation method of urban domestic sludge microbial fertilizer - Google Patents
Preparation method of urban domestic sludge microbial fertilizer Download PDFInfo
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- CN112479792A CN112479792A CN202011395816.0A CN202011395816A CN112479792A CN 112479792 A CN112479792 A CN 112479792A CN 202011395816 A CN202011395816 A CN 202011395816A CN 112479792 A CN112479792 A CN 112479792A
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- domestic sludge
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- 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
- C05G5/00—Fertilisers characterised by their form
- C05G5/10—Solid or semi-solid fertilisers, e.g. powders
- C05G5/12—Granules or flakes
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B17/00—Other phosphatic fertilisers, e.g. soft rock phosphates, bone meal
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Treatment Of Sludge (AREA)
- Fertilizers (AREA)
Abstract
The invention relates to the technical field of fertilizer preparation, and discloses a preparation method of a municipal domestic sludge microbial fertilizer, which comprises the following raw materials in parts by weight: 20-55 g of domestic sludge, 0.3-5 g of microbial straw decomposing inoculant, 10-20% of nitrogen fertilizer, 5-10 g of calcium carbonate, 1-5 g of silica fume, 10-25 g of ground phosphate rock, 75-85 g of plant straw, 5-15 g of diatomite and 5-10 g of fermentation liquor. According to the preparation method of the town domestic sludge microbial fertilizer, the town domestic sludge is reasonably treated, harmless treatment and resource utilization are carried out, necessary organic matters and nutrients are provided for agricultural planting, basic microorganisms have the advantages of positive significance on sustainable development, water retention and fertilizer retention of a planting environment, secondary damage to the environment caused by burying or burning is avoided, waste of manpower and material resources is reduced, and the problems that secondary pollution can be caused by the existing domestic sludge treatment method, more manpower and material resources are consumed, and more social resources are wasted are solved.
Description
Technical Field
The invention relates to the technical field of fertilizer preparation, in particular to a preparation method of a municipal domestic sludge microbial fertilizer.
Background
With the continuous construction of sewage treatment plants all over the country and the continuous production of municipal sludge, which is an associated product of sewage treatment, new sludge treatment each year not only occupies a large amount of land, but also brings new pollution.
The environmental problems caused by the urban domestic sludge are increasingly prominent. Under the promotion that the urbanization process of China is accelerated, urban population is increased rapidly, and the national investment on environmental protection is increased continuously, the number of sewage treatment plants in China is increased continuously, the sewage treatment capacity is improved continuously, and the sludge produced by the sewage treatment plants is also kept to be increased greatly.
Most of the existing domestic sludge treatment methods are buried or incinerated, and the two treatment modes not only can cause secondary pollution, but also consume more manpower and material resources and waste more social resources.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a preparation method of a municipal domestic sludge microbial fertilizer, which solves the problems that the two treatment modes of burying or burning are mostly adopted in the conventional domestic sludge treatment method, so that not only can secondary pollution be caused, but also more manpower and material resources are consumed, and more social resources are wasted.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme:
a preparation method of a town domestic sludge microbial fertilizer comprises the following raw materials in parts by weight: 20-55 g of domestic sludge, 0.3-5 g of microbial straw decomposing inoculant, 10-20% of nitrogen fertilizer, 5-10 g of calcium carbonate, 1-5 g of silica fume, 10-25 g of ground phosphate rock, 75-85 g of plant straw, 5-15 g of diatomite and 5-10 g of fermentation liquor
Preferably, the water content of the domestic sludge is 20-50%.
Preferably, the microbial straw decomposing inoculant is prepared from the following raw materials in parts by weight: 8-30% of compound microbial agent, 40-70% of organic material and 15-35% of mineral substance.
Preferably, the compound microbial agent mainly comprises a bacillus subtilis microbial agent, an aspergillus niger microbial agent, a trichoderma reesei microbial agent and a saccharomyces cerevisiae microbial agent.
The invention aims to solve another technical problem and provides a preparation method of the urban domestic sludge microbial fertilizer, which comprises the following steps:
s1: weighing: weighing the raw materials according to the formula proportion for later use.
S2: fermentation: adding 20-55 g of domestic sludge into 5-10 g of fermentation liquor, stirring, carrying out aerobic biological fermentation on the mixed fermentation liquor, and standing for 3-5 days.
S3: processing: 0.3-5 g of microbial straw decomposing agent, 10-20% of nitrogen fertilizer, 5-10 g of calcium carbonate, 1-5 g of silica fume, 10-25 g of ground phosphate rock, 75-85 g of plant straw, 5-15 g of diatomite and 5-10 g of fermentation liquor are added into the fermented domestic sludge.
S4: composting: naturally composting the uniformly mixed domestic sludge, turning over once every week, and standing for 25-32 days.
S5: and (3) granulating: and (4) obtaining a product after standing, and granulating the obtained product.
S6: and drying and cooling the granulated product to obtain the microbial fertilizer.
Preferably, when the raw materials are added in the step 3, stirring is required, so that various raw materials are uniformly mixed.
Preferably, the granular product in the step 6 needs to be mixed with 3-5 g of biological functional bacteria before being dried and cooled, so that the granular product is not inactivated in the granulating and drying processes and can be stored for a long time.
(III) advantageous effects
Compared with the prior art, the invention provides a preparation method of the urban domestic sludge microbial fertilizer, which has the following beneficial effects:
1. according to the preparation method of the urban domestic sludge microbial fertilizer, the urban domestic sludge is reasonably treated, harmless treatment and resource utilization are carried out, necessary organic matters and nutrients are provided for agricultural planting, basic microorganisms have the advantages of positive significance on sustainable development, water retention and fertilizer retention of a planting environment, secondary damage to the environment caused by burying or burning is avoided, waste of manpower and material resources is reduced, and the problems that the secondary pollution is caused by burying or burning in most of the existing domestic sludge treatment methods, more manpower and material resources are consumed, and more social resources are wasted are solved.
2. According to the preparation method of the urban domestic sludge microbial fertilizer, the prepared microbial fertilizer has the characteristics of rapid propagation, strong vitality, safety, no toxicity and the like by adding the biological functional bacteria, can promote the growth of crops, improve the quality of agricultural products, prevent diseases, and achieve the effects of improving soil and dissolving ineffective phosphorus.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
a preparation method of a town domestic sludge microbial fertilizer comprises the following raw materials in parts by weight: 20-55 g of domestic sludge, 0.3-5 g of microbial straw decomposing inoculant, 10-20% of nitrogen fertilizer, 5-10 g of calcium carbonate, 1-5 g of silica fume, 10-25 g of ground phosphate rock, 75-85 g of plant straw, 5-15 g of diatomite and 5-10 g of fermentation liquor.
As a specific optimization scheme of the embodiment, the water content of the domestic sludge is 20-50%.
As a specific optimization scheme of the embodiment, the microbial straw decomposing inoculant is prepared from the following raw materials in parts by weight: 8-30% of composite microbial agent, 40-70% of organic material and 15-35% of mineral substance, wherein the microbial straw decomposition agent can quickly decompose organic waste such as straw, so that organic matter, phosphorus, potassium and other elements contained in the straw become nutrients required by plant growth, and a large amount of beneficial microorganisms are generated, thereby stimulating crop production, improving soil organic matter, enhancing plant stress resistance, reducing the using amount of chemical fertilizer, improving crop quality and realizing sustainable development of agriculture.
As a specific optimization scheme of the embodiment, the compound microbial agent mainly comprises a bacillus subtilis microbial agent, an aspergillus niger microbial agent, a trichoderma reesei microbial agent and a saccharomyces cerevisiae microbial agent.
A preparation method of a town domestic sludge microbial fertilizer comprises the following steps:
s1: weighing: weighing the raw materials according to the formula proportion for later use.
S2: fermentation: adding 20g of domestic sludge into 5-10 g of fermentation liquor, stirring, carrying out aerobic biological fermentation on the mixed fermentation liquor, and standing for 3 days.
S3: processing: 0.3g of microbial straw decomposing agent, 10% of nitrogen fertilizer, 5g of calcium carbonate, 1g of silica fume, 10g of ground phosphate rock, 75g of plant straw, 5g of diatomite and 5g of fermentation liquor are added into the fermented domestic sludge.
S4: composting: naturally composting the evenly mixed domestic sludge, turning over once every week, and standing for 25 days.
S5: and (3) granulating: and (4) obtaining a product after standing, and granulating the obtained product.
S6: and drying and cooling the granulated product to obtain the microbial fertilizer.
As a specific optimization scheme of this embodiment, the raw materials are added in step 3, and then stirred to uniformly mix the various raw materials.
As a specific optimization scheme of this embodiment, in step 6, the granular product needs to be mixed with 3g of biofunctional bacteria before being dried and cooled, so as to ensure that the granular product is not inactivated during granulation and drying, and can be stored for a long time, and the biofunctional bacteria are biological strains in powder form, and have the characteristics of rapid propagation, strong vitality, safety, no toxicity and the like, and have the characteristics of pure strains, high viable count, no mixed bacteria, promotion of crop growth, improvement of agricultural product quality, prevention of diseases and the like, and simultaneously can improve soil and dissolve ineffective phosphorus.
Example two:
a preparation method of a town domestic sludge microbial fertilizer comprises the following raw materials in parts by weight: 20-55 g of domestic sludge, 0.3-5 g of microbial straw decomposing inoculant, 10-20% of nitrogen fertilizer, 5-10 g of calcium carbonate, 1-5 g of silica fume, 10-25 g of ground phosphate rock, 75-85 g of plant straw, 5-15 g of diatomite and 5-10 g of fermentation liquor.
As a specific optimization scheme of the embodiment, the water content of the domestic sludge is 20-50%.
As a specific optimization scheme of the embodiment, the microbial straw decomposing inoculant is prepared from the following raw materials in parts by weight: 8-30% of composite microbial agent, 40-70% of organic material and 15-35% of mineral substance, wherein the microbial straw decomposition agent can quickly decompose organic waste such as straw, so that organic matter, phosphorus, potassium and other elements contained in the straw become nutrients required by plant growth, and a large amount of beneficial microorganisms are generated, thereby stimulating crop production, improving soil organic matter, enhancing plant stress resistance, reducing the using amount of chemical fertilizer, improving crop quality and realizing sustainable development of agriculture.
As a specific optimization scheme of the embodiment, the compound microbial agent mainly comprises a bacillus subtilis microbial agent, an aspergillus niger microbial agent, a trichoderma reesei microbial agent and a saccharomyces cerevisiae microbial agent.
A preparation method of a town domestic sludge microbial fertilizer comprises the following steps:
s1: weighing: weighing the raw materials according to the formula proportion for later use.
S2: fermentation: adding 20g of domestic sludge into 5-10 g of fermentation liquor, stirring, carrying out aerobic biological fermentation on the mixed fermentation liquor, and standing for 5 days.
S3: processing: 0.3g of microbial straw decomposing agent, 10% of nitrogen fertilizer, 5g of calcium carbonate, 1g of silica fume, 10g of ground phosphate rock, 75g of plant straw, 5g of diatomite and 5g of fermentation liquor are added into the fermented domestic sludge.
S4: composting: naturally composting the evenly mixed domestic sludge, turning over once a week, and standing for 32 days.
S5: and (3) granulating: and (4) obtaining a product after standing, and granulating the obtained product.
S6: and drying and cooling the granulated product to obtain the microbial fertilizer.
As a specific optimization scheme of this embodiment, the raw materials are added in step 3, and then stirred to uniformly mix the various raw materials.
As a specific optimization scheme of this embodiment, in step 6, the granular product needs to be mixed with 3g of biofunctional bacteria before being dried and cooled, so as to ensure that the granular product is not inactivated during granulation and drying, and can be stored for a long time, and the biofunctional bacteria are biological strains in powder form, and have the characteristics of rapid propagation, strong vitality, safety, no toxicity and the like, and have the characteristics of pure strains, high viable count, no mixed bacteria, promotion of crop growth, improvement of agricultural product quality, prevention of diseases and the like, and simultaneously can improve soil and dissolve ineffective phosphorus.
Example three:
a preparation method of a town domestic sludge microbial fertilizer comprises the following raw materials in parts by weight: 20-55 g of domestic sludge, 0.3-5 g of microbial straw decomposing inoculant, 10-20% of nitrogen fertilizer, 5-10 g of calcium carbonate, 1-5 g of silica fume, 10-25 g of ground phosphate rock, 75-85 g of plant straw, 5-15 g of diatomite and 5-10 g of fermentation liquor.
As a specific optimization scheme of the embodiment, the water content of the domestic sludge is 20-50%.
As a specific optimization scheme of the embodiment, the microbial straw decomposing inoculant is prepared from the following raw materials in parts by weight: 8-30% of composite microbial agent, 40-70% of organic material and 15-35% of mineral substance, wherein the microbial straw decomposition agent can quickly decompose organic waste such as straw, so that organic matter, phosphorus, potassium and other elements contained in the straw become nutrients required by plant growth, and a large amount of beneficial microorganisms are generated, thereby stimulating crop production, improving soil organic matter, enhancing plant stress resistance, reducing the using amount of chemical fertilizer, improving crop quality and realizing sustainable development of agriculture.
As a specific optimization scheme of the embodiment, the compound microbial agent mainly comprises a bacillus subtilis microbial agent, an aspergillus niger microbial agent, a trichoderma reesei microbial agent and a saccharomyces cerevisiae microbial agent.
A preparation method of a town domestic sludge microbial fertilizer comprises the following steps:
s1: weighing: weighing the raw materials according to the formula proportion for later use.
S2: fermentation: adding 55g of domestic sludge into 10g of fermentation liquor, stirring, carrying out aerobic biological fermentation on the mixed fermentation liquor, and standing for 5 days.
S3: processing: 5g of microbial straw decomposing agent, 20% of nitrogen fertilizer, 10g of calcium carbonate, 5g of silica fume, 25g of ground phosphate rock, 85g of plant straw, 15g of diatomite and 10g of fermentation liquor are added into the fermented domestic sludge.
S4: composting: naturally composting the evenly mixed domestic sludge, turning over once a week, and standing for 32 days.
S5: and (3) granulating: and (4) obtaining a product after standing, and granulating the obtained product.
S6: and drying and cooling the granulated product to obtain the microbial fertilizer.
As a specific optimization scheme of this embodiment, the raw materials are added in step 3, and then stirred to uniformly mix the various raw materials.
As a specific optimization scheme of this embodiment, in step 6, the granular product needs to be mixed with 5g of biofunctional bacteria before being dried and cooled, so as to ensure that the granular product is not inactivated during granulation and drying, and can be stored for a long time.
Experimental example four:
a preparation method of a town domestic sludge microbial fertilizer comprises the following raw materials in parts by weight: 20-55 g of domestic sludge, 0.3-5 g of microbial straw decomposing inoculant, 10-20% of nitrogen fertilizer, 5-10 g of calcium carbonate, 1-5 g of silica fume, 10-25 g of ground phosphate rock, 75-85 g of plant straw, 5-15 g of diatomite and 5-10 g of fermentation liquor.
As a specific optimization scheme of the embodiment, the water content of the domestic sludge is 20-50%.
As a specific optimization scheme of the embodiment, the microbial straw decomposing inoculant is prepared from the following raw materials in parts by weight: 8-30% of composite microbial agent, 40-70% of organic material and 15-35% of mineral substance, wherein the microbial straw decomposition agent can quickly decompose organic waste such as straw, so that organic matter, phosphorus, potassium and other elements contained in the straw become nutrients required by plant growth, and a large amount of beneficial microorganisms are generated, thereby stimulating crop production, improving soil organic matter, enhancing plant stress resistance, reducing the using amount of chemical fertilizer, improving crop quality and realizing sustainable development of agriculture.
As a specific optimization scheme of the embodiment, the compound microbial agent mainly comprises a bacillus subtilis microbial agent, an aspergillus niger microbial agent, a trichoderma reesei microbial agent and a saccharomyces cerevisiae microbial agent.
A preparation method of a town domestic sludge microbial fertilizer comprises the following steps:
s1: weighing: weighing the raw materials according to the formula proportion for later use.
S2: fermentation: adding 55g of domestic sludge into 10g of fermentation liquor, stirring, carrying out aerobic biological fermentation on the mixed fermentation liquor, and standing for 3 days.
S3: processing: 5g of microbial straw decomposing agent, 20% of nitrogen fertilizer, 10g of calcium carbonate, 5g of silica fume, 25g of ground phosphate rock, 85g of plant straw, 15g of diatomite and 10g of fermentation liquor are added into the fermented domestic sludge.
S4: composting: naturally composting the evenly mixed domestic sludge, turning over once every week, and standing for 25 days.
S5: and (3) granulating: and (4) obtaining a product after standing, and granulating the obtained product.
S6: and drying and cooling the granulated product to obtain the microbial fertilizer.
As a specific optimization scheme of this embodiment, the raw materials are added in step 3, and then stirred to uniformly mix the various raw materials.
As a specific optimization scheme of this embodiment, in step 6, the granular product needs to be mixed with 5g of biofunctional bacteria before being dried and cooled, so as to ensure that the granular product is not inactivated during granulation and drying, and can be stored for a long time.
The invention has the beneficial effects that:
although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The preparation method of the urban domestic sludge microbial fertilizer is characterized by comprising the following raw materials in parts by weight: 20-55 g of domestic sludge, 0.3-5 g of microbial straw decomposing inoculant, 10-20% of nitrogen fertilizer, 5-10 g of calcium carbonate, 1-5 g of silica fume, 10-25 g of ground phosphate rock, 75-85 g of plant straw, 5-15 g of diatomite and 5-10 g of fermentation liquor.
2. The preparation method of the town domestic sludge microbial fertilizer as claimed in claim 1, wherein the water content of the domestic sludge is 20-50%.
3. The preparation method of the town domestic sludge microbial fertilizer as claimed in claim 1, wherein the microbial straw decomposition agent is prepared from the following raw materials in parts by weight: 8-30% of compound microbial agent, 40-70% of organic material and 15-35% of mineral substance.
4. The method for preparing the town domestic sludge microbial fertilizer as claimed in claim 1, wherein the compound microbial agent mainly comprises a bacillus subtilis microbial agent, an aspergillus niger microbial agent, a trichoderma reesei microbial agent and a saccharomyces cerevisiae microbial agent.
5. The preparation method of the urban domestic sludge microbial fertilizer is characterized by comprising the following steps of:
s1: weighing: weighing the raw materials according to the formula proportion for later use;
s2: fermentation: adding 20-55 g of domestic sludge into 5-10 g of fermentation liquor, stirring, carrying out aerobic biological fermentation on the mixed fermentation liquor, and standing for 3-5 days;
s3: processing: adding 0.3-5 g of microbial straw decomposing agent, 10-20% of nitrogen fertilizer, 5-10 g of calcium carbonate, 1-5 g of silica fume, 10-25 g of ground phosphate rock, 75-85 g of plant straw, 5-15 g of diatomite and 5-10 g of fermentation liquor into fermented domestic sludge;
s4: composting: naturally composting the uniformly mixed domestic sludge, turning over once every week, and standing for 25-32 days;
s5: and (3) granulating: standing to obtain a product, and granulating the obtained product;
s6: and drying and cooling the granulated product to obtain the microbial fertilizer.
6. The method for preparing the town domestic sludge microbial fertilizer as claimed in claim 5, wherein the raw materials are added in the step 3 by stirring, so that the raw materials are uniformly mixed.
7. The preparation method of the town domestic sludge microbial fertilizer as claimed in claim 5, wherein the granular product in the step 6 needs to be mixed with 3-5 g of biofunctional bacteria before being dried and cooled, so that the granular product is not inactivated in the granulation and drying processes and can be stored for a long time.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011395816.0A CN112479792A (en) | 2020-12-03 | 2020-12-03 | Preparation method of urban domestic sludge microbial fertilizer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011395816.0A CN112479792A (en) | 2020-12-03 | 2020-12-03 | Preparation method of urban domestic sludge microbial fertilizer |
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| CN112479792A true CN112479792A (en) | 2021-03-12 |
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| CN202011395816.0A Withdrawn CN112479792A (en) | 2020-12-03 | 2020-12-03 | Preparation method of urban domestic sludge microbial fertilizer |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113149758A (en) * | 2021-04-23 | 2021-07-23 | 河海大学 | Rural sludge organic fertilizer and preparation method thereof |
| CN113287485A (en) * | 2021-06-02 | 2021-08-24 | 北京城市排水集团有限责任公司 | Organic-inorganic compound nutrient soil and preparation method thereof |
-
2020
- 2020-12-03 CN CN202011395816.0A patent/CN112479792A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113149758A (en) * | 2021-04-23 | 2021-07-23 | 河海大学 | Rural sludge organic fertilizer and preparation method thereof |
| CN113287485A (en) * | 2021-06-02 | 2021-08-24 | 北京城市排水集团有限责任公司 | Organic-inorganic compound nutrient soil and preparation method thereof |
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Application publication date: 20210312 |