CN112551845A - Method for reducing weight and sterilizing sludge by using earthworms - Google Patents
Method for reducing weight and sterilizing sludge by using earthworms Download PDFInfo
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- CN112551845A CN112551845A CN202011523433.7A CN202011523433A CN112551845A CN 112551845 A CN112551845 A CN 112551845A CN 202011523433 A CN202011523433 A CN 202011523433A CN 112551845 A CN112551845 A CN 112551845A
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- 239000010802 sludge Substances 0.000 title claims abstract description 103
- 241001233061 earthworms Species 0.000 title claims abstract description 56
- 238000000034 method Methods 0.000 title claims abstract description 30
- 230000001954 sterilising effect Effects 0.000 title claims abstract description 16
- 241000361919 Metaphire sieboldi Species 0.000 claims abstract description 38
- 239000011159 matrix material Substances 0.000 claims abstract description 6
- 210000003608 fece Anatomy 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 239000010902 straw Substances 0.000 claims description 5
- 239000000758 substrate Substances 0.000 claims description 5
- 239000002344 surface layer Substances 0.000 claims description 5
- 229910001385 heavy metal Inorganic materials 0.000 abstract description 9
- 239000010815 organic waste Substances 0.000 abstract description 4
- 239000007787 solid Substances 0.000 abstract description 4
- 230000036983 biotransformation Effects 0.000 abstract description 2
- 229910052804 chromium Inorganic materials 0.000 abstract description 2
- 229910052802 copper Inorganic materials 0.000 abstract description 2
- 229910052745 lead Inorganic materials 0.000 abstract description 2
- 239000010871 livestock manure Substances 0.000 abstract description 2
- 229910052759 nickel Inorganic materials 0.000 abstract description 2
- 239000002689 soil Substances 0.000 description 5
- 244000005700 microbiome Species 0.000 description 3
- 239000003895 organic fertilizer Substances 0.000 description 2
- 235000013619 trace mineral Nutrition 0.000 description 2
- 239000011573 trace mineral Substances 0.000 description 2
- 210000001015 abdomen Anatomy 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 150000001413 amino acids Chemical class 0.000 description 1
- 230000008485 antagonism Effects 0.000 description 1
- 244000052616 bacterial pathogen Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 238000009264 composting Methods 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000035558 fertility Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 229920001184 polypeptide Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 102000004196 processed proteins & peptides Human genes 0.000 description 1
- 108090000765 processed proteins & peptides Proteins 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000003516 soil conditioner Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 230000004580 weight loss Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/02—Biological treatment
-
- 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
- C05F17/05—Treatments involving invertebrates, e.g. worms, flies or maggots
-
- 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
- C05F17/80—Separation, elimination or disposal of harmful substances during the treatment
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F7/00—Fertilisers from waste water, sewage sludge, sea slime, ooze or similar masses
-
- 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
- C05G3/60—Biocides or preservatives, e.g. disinfectants, pesticides or herbicides; Pest repellants or attractants
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/20—Nature of the water, waste water, sewage or sludge to be treated from animal husbandry
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/20—Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Molecular Biology (AREA)
- Biochemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Microbiology (AREA)
- Biotechnology (AREA)
- Pest Control & Pesticides (AREA)
- Environmental & Geological Engineering (AREA)
- Tropical Medicine & Parasitology (AREA)
- Hydrology & Water Resources (AREA)
- Insects & Arthropods (AREA)
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- Plant Pathology (AREA)
- Processing Of Solid Wastes (AREA)
- Fertilizers (AREA)
Abstract
The invention discloses a method for reducing weight and sterilizing sludge by using earthworms, which comprises the following steps: the method comprises the following steps: paving a bed, uniformly collecting the sludge, and uniformly paving the sludge in the culture area; step two: turning, namely turning the sludge by using a turning machine to ensure that the humidity reaches 50-60%; step three: ridging, namely ridging the sludge in the step two, wherein one ridge is 25-30 cm, and one ditch is 20-30 cm; step four: seed throwing, namely throwing the earthworms and the matrix into each ridge formed in the third step to form an earthworm bed; the principle that the earthworms use the solid organic wastes as food is adopted, so that pollution-free, zero-emission and harmless biotransformation of the solid organic wastes such as livestock manure and the like is realized; the earthworms can absorb and enrich heavy metals in the sludge, wherein the enriching capacity to Cd is strongest; after the earthworm treatment, the heavy metals such as Cr, Pb, Cu, Ni and the like in the sludge are reduced to different degrees.
Description
Technical Field
The invention belongs to the technical field of sludge treatment, and particularly relates to a method for reducing weight and sterilizing sludge by using earthworms.
Background
The digestion and composting of the sludge are the growth and propagation processes of microorganisms, the practical effect is that a large amount of microorganisms in batches eat the sludge so as to decompose macromolecular organic substances in the sludge into micromolecular proteins, polypeptides, amino acids and the like, in the current breeding industry, the existence of the sludge is one of important problems restricting production, the sludge contains a large amount of waste pollutants and heavy metals, the direct discharge easily causes serious influence on the ecological environment, the discharge standard cost is high after the processing, and therefore, the practical use still has great limitation.
Disclosure of Invention
The invention aims to provide a method for reducing weight and sterilizing sludge by using earthworms, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a method for reducing weight and sterilizing sludge by using earthworms comprises the following steps:
the method comprises the following steps: paving a bed, uniformly collecting the sludge, and uniformly paving the sludge in the culture area;
step two: turning, namely turning the sludge by using a turning machine to ensure that the humidity reaches 50-60%;
step three: ridging, namely ridging the sludge in the step two, wherein one ridge is 25-30 cm, and one ditch is 20-30 cm;
step four: seed throwing, namely throwing the earthworms and the matrix into each ridge formed in the third step to form an earthworm bed;
step five: covering, covering a straw curtain, and watering every 6-8 h;
step six: feeding materials, namely feeding the sludge when the earthworms eat the sludge of the earthworm bed completely;
step seven: turning over the bed, namely turning over the earthworm bed once a month, and turning over sludge below the bed to the surface layer so as to avoid untreated sludge at the bottom of the bed;
step eight: and (4) clearing the bed, extracting earthworms every year, performing centralized treatment, and clearing the sludge after the feeding treatment, namely earthworm feces out of the shed for greening planting and fertilizing.
Preferably, the culture area in the first step is a long straight area, the distance between the edge of the sludge and the edge of the culture area is 0.5-0.7 m, a rectangular structure is formed after the sludge is laid, the width of the rectangular structure is 2-2.5 m, and the thickness of the rectangular structure is 12-15 cm.
Preferably, the turning frequency in the second step is once a day, and is 3-5 times in total.
Preferably, ridges in the third step are used for reducing the over-excitation reaction of the earthworms and prolonging the application time.
Preferably, 1-1.5 kg of earthworms are put into each ridge in the fourth step, and the substrate is earthworm cast of an original culture bed, and the weight of the earthworm cast is 4-4.5 kg.
Preferably, in the sixth step, the amount of the sludge fed in each month is 0.1-0.3 square per square meter.
Preferably, in the fifth step, the humidity of the earthworm bed is kept between 50 and 60 percent after watering.
Compared with the prior art, the invention has the beneficial effects that:
the principle that the earthworms use the solid organic wastes as food is adopted, so that pollution-free, zero-emission and harmless biotransformation of the solid organic wastes such as livestock manure and the like is realized; the earthworms can absorb and enrich heavy metals in the sludge, wherein the enriching capacity to Cd is strongest; after the earthworms are treated, the heavy metals such as Cr, Pb, Cu, Ni and the like in the sludge are reduced to different degrees; under the synergistic effect of the trace elements and microorganisms, the activation of heavy metals in the sludge can be accelerated, and the heavy metals are converted into trace elements which can be absorbed by plants; after the earthworms eat the sludge, most harmful germs die, the rest dominant floras generate antagonism, and soil-borne diseases of the sludge for agriculture and forestry can be reduced.
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.
Example 1
The invention provides a technical scheme that: a method for reducing weight and sterilizing sludge by using earthworms comprises the following steps:
the method comprises the following steps: paving a bed, uniformly collecting the sludge, and uniformly paving the sludge in the culture area;
step two: turning, namely turning the sludge by a turning machine to ensure that the humidity reaches 50%;
step three: ridging, namely ridging the sludge in the step two by 25cm in one ridge and 20cm in one ditch;
step four: seed throwing, namely throwing the earthworms and the matrix into each ridge formed in the third step to form an earthworm bed;
step five: covering, covering with straw curtains, and watering every 6 h;
step six: feeding materials, namely feeding the sludge when the earthworms eat the sludge of the earthworm bed completely;
step seven: turning over the bed, namely turning over the earthworm bed once a month, and turning over sludge below the bed to the surface layer so as to avoid untreated sludge at the bottom of the bed;
step eight: and (4) clearing the bed, extracting earthworms every year, performing centralized treatment, and clearing the sludge after the feeding treatment, namely earthworm feces out of the shed for greening planting and fertilizing.
In this embodiment, preferably, the culture area in the first step is a long straight area, the distance between the edge of the sludge and the edge of the culture area is 0.5m, wherein the sludge forms a rectangular structure after being laid, the width of the rectangular structure is 2m, and the thickness of the rectangular structure is 12 cm.
In this embodiment, preferably, the turning frequency in the second step is 3 times a day.
In this embodiment, the reason why ridging is performed in the third step is that earthworms who originally eat cow dung need to adapt for a certain period of time when eating sludge, and the earthworms are in furrows at the initial stage, so that stress reaction can be avoided.
In this embodiment, preferably, the earthworms are put into each ridge in the fourth step by 1kg, and the substrate is the earthworm cast of the original culture bed, and the weight of the earthworm cast is 4 kg.
In this embodiment, preferably, in the sixth step, the amount of sludge applied per month is 0.1 square per square meter.
In the embodiment, preferably, in the fifth step, the humidity of the earthworm bed is kept at 50-60% after watering.
Example 2
The invention provides a technical scheme that: a method for reducing weight and sterilizing sludge by using earthworms comprises the following steps:
the method comprises the following steps: paving a bed, uniformly collecting the sludge, and uniformly paving the sludge in the culture area;
step two: turning, namely turning the sludge by a turning machine to ensure that the humidity reaches 55%;
step three: ridging, namely ridging the sludge in the step two, namely forming a ridge by 28cm and a ditch by 28 cm;
step four: seed throwing, namely throwing the earthworms and the matrix into each ridge formed in the third step to form an earthworm bed;
step five: covering, covering with straw curtains, and watering every 7 h;
step six: feeding materials, namely feeding the sludge when the earthworms eat the sludge of the earthworm bed completely;
step seven: turning over the bed, namely turning over the earthworm bed once a month, and turning over sludge below the bed to the surface layer so as to avoid untreated sludge at the bottom of the bed;
step eight: and (4) clearing the bed, extracting earthworms every year, performing centralized treatment, and clearing the sludge after the feeding treatment, namely earthworm feces out of the shed for greening planting and fertilizing.
In this embodiment, preferably, the culture area in the first step is a long straight area, the distance between the edge of the sludge and the edge of the culture area is 0.6m, wherein the sludge forms a rectangular structure after being laid, the width of the rectangular structure is 2.2m, and the thickness of the rectangular structure is 13 cm.
In this embodiment, the turning frequency in the second step is preferably 4 times a day.
In this embodiment, the reason why ridging is performed in the third step is that earthworms who originally eat cow dung need to adapt for a certain period of time when eating sludge, and the earthworms are in furrows at the initial stage, so that stress reaction can be avoided.
In this embodiment, preferably, the earthworms are put into each ridge in the fourth step by 1.2kg, and the substrate is the earthworm cast of the original culture bed, and the weight of the earthworm cast is 4.3 kg.
In this embodiment, preferably, in the sixth step, the amount of sludge applied per month is 0.2 square per square meter.
In this embodiment, preferably, in the fifth step, the humidity of the earthworm bed is kept 55% after watering.
Example 3
The invention provides a technical scheme that: a method for reducing weight and sterilizing sludge by using earthworms comprises the following steps:
the method comprises the following steps: paving a bed, uniformly collecting the sludge, and uniformly paving the sludge in the culture area;
step two: turning, namely turning the sludge by a turning machine to ensure that the humidity reaches 60%;
step three: ridging, namely ridging the sludge in the step two by 30cm in one ridge and 30cm in one ditch;
step four: seed throwing, namely throwing the earthworms and the matrix into each ridge formed in the third step to form an earthworm bed;
step five: covering, covering with straw curtains, and watering every 8 h;
step six: feeding materials, namely feeding the sludge when the earthworms eat the sludge of the earthworm bed completely;
step seven: turning over the bed, namely turning over the earthworm bed once a month, and turning over sludge below the bed to the surface layer so as to avoid untreated sludge at the bottom of the bed;
step eight: and (4) clearing the bed, extracting earthworms every year, performing centralized treatment, and clearing the sludge after the feeding treatment, namely earthworm feces out of the shed for greening planting and fertilizing.
In this embodiment, preferably, the culture area in the first step is a long straight area, and the distance between the edge of the sludge and the edge of the culture area is 0.7m, wherein the sludge forms a rectangular structure after being laid, the width of the rectangular structure is 2.5m, and the thickness of the rectangular structure is 15 cm.
In this embodiment, preferably, the turning frequency in the second step is 5 times a day.
In this embodiment, the reason why ridging is performed in the third step is that earthworms who originally eat cow dung need to adapt for a certain period of time when eating sludge, and the earthworms are in furrows at the initial stage, so that stress reaction can be avoided.
In this embodiment, preferably, the earthworms are put into each ridge in the fourth step by 1.5kg, and the substrate is the earthworm cast of the original culture bed, and the weight of the earthworm cast is 4.5 kg.
In this embodiment, preferably, in the sixth step, the amount of sludge applied per month is 0.3 square per square meter.
In this embodiment, preferably, in the fifth step, the humidity of the earthworm bed is kept at 60% after watering.
After the earthworms eat the sludge, the earthworms absorb heavy metals and organic matters in the sludge, the weight of the earthworms is increased, the sludge reduction is effectively realized, and the scientific proportion is 2: 1, namely: the 2 ton weight loss was 1 ton. The actual measurement shows that the first sludge comes from 8.8 tons, and the sludge wormcast is measured and calculated after 25 days of treatment to obtain 4 tons; the earthworms eat the sludge to produce sludge, earthworm feces, which reaches the use standard of flower nursery stocks through detection and becomes organic fertilizer after being slightly processed, and the biological organic fertilizer is mainly characterized in that: the soil conditioner has the advantages of improving soil loosening, improving soil organic matters, adsorbing and degrading pesticide and heavy metal residues and harmful gases, improving soil ecological balance, fertilizing soil fertility and improving quality and yield of agricultural products. Therefore, it is called "high-tech soil environmental protection star, non-pollution green agriculture treasure"; the wormcast produced after the earthworms pass through the abdomen is crushed to reach the use standard of the nursery stock of flowers and plants, and is supplied to nursery garden and outside customers for planting the nursery stock and flowers.
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. A method for reducing weight and sterilizing sludge by using earthworms is characterized by comprising the following steps: the method comprises the following steps:
the method comprises the following steps: paving a bed, uniformly collecting the sludge, and uniformly paving the sludge in the culture area;
step two: turning, namely turning the sludge by using a turning machine to ensure that the humidity reaches 50-60%;
step three: ridging, namely ridging the sludge in the step two, wherein one ridge is 25-30 cm, and one ditch is 20-30 cm;
step four: seed throwing, namely throwing the earthworms and the matrix into each ridge formed in the third step to form an earthworm bed;
step five: covering, covering a straw curtain, and watering every 6-8 h;
step six: feeding materials, namely feeding the sludge when the earthworms eat the sludge of the earthworm bed completely;
step seven: turning over the bed, namely turning over the earthworm bed once a month, and turning over sludge below the bed to the surface layer so as to avoid untreated sludge at the bottom of the bed;
step eight: and (4) clearing the bed, extracting earthworms every year, performing centralized treatment, and clearing the sludge after the feeding treatment, namely earthworm feces out of the shed for greening planting and fertilizing.
2. The method for reducing weight and sterilizing sludge by using earthworms as claimed in claim 1, wherein the method comprises the following steps: the culture area in the first step is a long straight area, the distance between the edge of the sludge and the edge of the culture area is 0.5-0.7 m, a rectangular structure is formed after the sludge is laid, the width of the rectangular structure is 2-2.5 m, and the thickness of the rectangular structure is 12-15 cm.
3. The method for reducing weight and sterilizing sludge by using earthworms as claimed in claim 1, wherein the method comprises the following steps: and the turning frequency in the second step is once a day, and is 3-5 times in total.
4. The method for reducing weight and sterilizing sludge by using earthworms as claimed in claim 1, wherein the method comprises the following steps: ridge making in the third step is used for reducing the overstimulation reaction of the earthworms and prolonging the application time.
5. The method for reducing weight and sterilizing sludge by using earthworms as claimed in claim 1, wherein the method comprises the following steps: in the fourth step, 1-1.5 kg of earthworms are put into each ridge, and the substrate is earthworm cast of the original culture bed, wherein the weight of the earthworm cast is 4-4.5 kg.
6. The method for reducing weight and sterilizing sludge by using earthworms as claimed in claim 1, wherein the method comprises the following steps: in the sixth step, the amount of the sludge is 0.1-0.3 square per square meter once per month.
7. The method for reducing weight and sterilizing sludge by using earthworms as claimed in claim 1, wherein the method comprises the following steps: and in the fifth step, after watering, keeping the humidity of the earthworm bed at 50-60%.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117142886A (en) * | 2023-09-11 | 2023-12-01 | 山东辰昕生物科技有限公司 | Earthworm belly-passing decomposition high-efficiency production and preparation process of bio-organic fertilizer |
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|---|---|---|---|---|
| KR100283609B1 (en) * | 1998-07-22 | 2001-04-02 | 정태화 | Organic sludge treatment device including food waste using earthworm |
| CN101746936A (en) * | 2010-02-05 | 2010-06-23 | 吉林绿环有机固废生物处理科技有限公司 | Method for treating sludge in large scale by utilizing earthworm |
| CN102786195A (en) * | 2012-08-02 | 2012-11-21 | 浙江大学 | Method for synchronously treating hydrocotyle verticillata and dewatered sludge by utilizing Peace-II earthworms |
| CN107879580A (en) * | 2017-11-16 | 2018-04-06 | 吴名根 | A kind of method using dealing with earthworm domestic sludge |
| CN109956633A (en) * | 2017-12-26 | 2019-07-02 | 天津市庆泰有机肥有限公司 | A method of utilizing earthworm biological treatment city excess sludge |
| CN109956557A (en) * | 2017-12-26 | 2019-07-02 | 天津市庆泰有机肥有限公司 | A method of utilizing earthworm biological treatment domestic sludge |
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2020
- 2020-12-21 CN CN202011523433.7A patent/CN112551845A/en active Pending
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|---|---|---|---|---|
| KR100283609B1 (en) * | 1998-07-22 | 2001-04-02 | 정태화 | Organic sludge treatment device including food waste using earthworm |
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