CN111618069B - Method for preparing regenerated soil by adopting municipal sludge and agricultural and forestry wastes - Google Patents
Method for preparing regenerated soil by adopting municipal sludge and agricultural and forestry wastes Download PDFInfo
- Publication number
- CN111618069B CN111618069B CN202010454761.XA CN202010454761A CN111618069B CN 111618069 B CN111618069 B CN 111618069B CN 202010454761 A CN202010454761 A CN 202010454761A CN 111618069 B CN111618069 B CN 111618069B
- Authority
- CN
- China
- Prior art keywords
- sludge
- agricultural
- mixed material
- mixing
- agent
- 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.)
- Active
Links
- 239000010802 sludge Substances 0.000 title claims abstract description 48
- 239000002689 soil Substances 0.000 title claims abstract description 26
- 239000002699 waste material Substances 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 22
- 239000003795 chemical substances by application Substances 0.000 claims description 39
- 239000000463 material Substances 0.000 claims description 38
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 21
- 238000002156 mixing Methods 0.000 claims description 16
- 238000000855 fermentation Methods 0.000 claims description 11
- 230000004151 fermentation Effects 0.000 claims description 11
- 238000010276 construction Methods 0.000 claims description 9
- 239000010902 straw Substances 0.000 claims description 9
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims description 8
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 claims description 8
- ZCCIPPOKBCJFDN-UHFFFAOYSA-N calcium nitrate Chemical compound [Ca+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ZCCIPPOKBCJFDN-UHFFFAOYSA-N 0.000 claims description 8
- 229910001882 dioxygen Inorganic materials 0.000 claims description 8
- 229910001385 heavy metal Inorganic materials 0.000 claims description 7
- 239000000126 substance Substances 0.000 claims description 7
- 230000008961 swelling Effects 0.000 claims description 7
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 claims description 6
- 229910052921 ammonium sulfate Inorganic materials 0.000 claims description 6
- 235000011130 ammonium sulphate Nutrition 0.000 claims description 6
- 239000002131 composite material Substances 0.000 claims description 6
- 230000003750 conditioning effect Effects 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 239000011573 trace mineral Substances 0.000 claims description 5
- 235000013619 trace mineral Nutrition 0.000 claims description 5
- QJZYHAIUNVAGQP-UHFFFAOYSA-N 3-nitrobicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic acid Chemical compound C1C2C=CC1C(C(=O)O)C2(C(O)=O)[N+]([O-])=O QJZYHAIUNVAGQP-UHFFFAOYSA-N 0.000 claims description 4
- 239000005696 Diammonium phosphate Substances 0.000 claims description 4
- 229910021538 borax Inorganic materials 0.000 claims description 4
- 239000001506 calcium phosphate Substances 0.000 claims description 4
- 229910000389 calcium phosphate Inorganic materials 0.000 claims description 4
- 235000011010 calcium phosphates Nutrition 0.000 claims description 4
- MNNHAPBLZZVQHP-UHFFFAOYSA-N diammonium hydrogen phosphate Chemical compound [NH4+].[NH4+].OP([O-])([O-])=O MNNHAPBLZZVQHP-UHFFFAOYSA-N 0.000 claims description 4
- 229910000388 diammonium phosphate Inorganic materials 0.000 claims description 4
- 235000019838 diammonium phosphate Nutrition 0.000 claims description 4
- 239000011790 ferrous sulphate Substances 0.000 claims description 4
- 235000003891 ferrous sulphate Nutrition 0.000 claims description 4
- 239000004021 humic acid Substances 0.000 claims description 4
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims description 4
- 229910000359 iron(II) sulfate Inorganic materials 0.000 claims description 4
- 229910052943 magnesium sulfate Inorganic materials 0.000 claims description 4
- 235000019341 magnesium sulphate Nutrition 0.000 claims description 4
- 235000010339 sodium tetraborate Nutrition 0.000 claims description 4
- 239000004328 sodium tetraborate Substances 0.000 claims description 4
- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 claims description 4
- 239000000052 vinegar Substances 0.000 claims description 4
- 235000021419 vinegar Nutrition 0.000 claims description 4
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 claims description 4
- 229960001763 zinc sulfate Drugs 0.000 claims description 4
- 229910000368 zinc sulfate Inorganic materials 0.000 claims description 4
- 238000012423 maintenance Methods 0.000 claims description 3
- 239000010813 municipal solid waste Substances 0.000 claims description 3
- 230000008635 plant growth Effects 0.000 claims description 3
- 238000012549 training Methods 0.000 claims description 3
- 235000001674 Agaricus brunnescens Nutrition 0.000 claims description 2
- KNQKRMVYLDOGCT-UHFFFAOYSA-N ammonium phosphate sulfate Chemical compound [NH4+].[NH4+].OP(O)([O-])=O.OS([O-])(=O)=O KNQKRMVYLDOGCT-UHFFFAOYSA-N 0.000 claims description 2
- 239000007864 aqueous solution Substances 0.000 claims description 2
- 229920000141 poly(maleic anhydride) Polymers 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims description 2
- 238000012360 testing method Methods 0.000 description 11
- 238000002474 experimental method Methods 0.000 description 10
- 239000010865 sewage Substances 0.000 description 8
- 238000002791 soaking Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 238000003825 pressing Methods 0.000 description 4
- 238000003860 storage Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 239000004567 concrete Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 235000013601 eggs Nutrition 0.000 description 2
- 238000002386 leaching Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 239000011591 potassium Substances 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 208000035240 Disease Resistance Diseases 0.000 description 1
- 241000238631 Hexapoda Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 238000004887 air purification Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 244000052616 bacterial pathogen Species 0.000 description 1
- 230000008827 biological function Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000009264 composting Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 244000053095 fungal pathogen Species 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 230000003863 physical function Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000013112 stability test Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
-
- 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
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/58—Construction or demolition [C&D] waste
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Processing Of Solid Wastes (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention belongs to the technical field of waste treatment, and particularly relates to a method for preparing regenerated soil by adopting municipal sludge and agricultural and forestry wastes.
Description
Technical Field
The invention belongs to the technical field of waste treatment, and particularly relates to a method for preparing regenerated soil by adopting municipal sludge and agricultural and forestry wastes.
Background
The sewage is waste in the industrial production process, the environmental protection inspection is more and more strict along with the promotion of the large-scale production of industrial industry in China, the industrial sewage is basically recycled, can not be utilized and also has strict discharge standards, each enterprise also has own sewage treatment facility, the finally concentrated mud cake sludge usually needs to be burnt or buried, but higher cost can be input and can not be well utilized, the sludge can be classified and treated like garbage classification, China already has the basic condition of sewage classification, and the sludge can be applied to different aspects by adopting different processes by utilizing the characteristics of the sludge after being classified; in the same way, the burning of the straws in rural areas can cause air pollution, and the straws need to be smashed and returned to the field, thus manpower and material resources are needed to be input.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a method for preparing regenerated soil by adopting municipal sludge and agricultural and forestry wastes, which can be used for carrying out soil regeneration on classified sludge by adopting a proper process to obtain sludge plant-growing concrete water storage particles and better utilize wastes such as sludge and the like.
The invention adopts the specific technical scheme that: a method for preparing regenerated soil by adopting municipal sludge and agricultural and forestry wastes is characterized by comprising the following steps:
A. the sludge is divided into domestic sludge and industrial sludge;
3-4% of cementing curing agent, 5-6% of swelling agent and 3-5% of heavy metal passivator are added into the domestic sludge according to the total water content (50-60%) of the domestic sludge, the building garbage, the branches and leaves of the agricultural and forestry straws and are uniformly mixed; mixing the RW quick-rotting agent and the powdery material according to a ratio of 1:6, adding diammonium phosphate with the mass content of 5% to prepare the dioxygen fermentation quick-rotting agent, and adding the dioxygen fermentation quick-rotting agent by one ten thousandth of the total mixed material amount; uniformly and fully stirring and mixing by adopting a step-by-step mixing method to obtain a first-stage mixed material, and controlling the water content of the first-stage mixed material to be below 60%;
adding 4-5% of cementing curing agent, 7-8% of swelling agent and 5-6% of heavy metal passivator into the industrial sludge according to the total water content (50-60%) of the industrial sludge, the construction waste, the branches and leaves of the agricultural and forestry straws and uniformly mixing; mixing the RW quick-rotting agent and the powdery material according to a ratio of 1:6, adding diammonium phosphate with the mass content of 5% to prepare the dioxygen fermentation quick-rotting agent, and adding the dioxygen fermentation quick-rotting agent by one ten thousandth of the total mixed material amount; uniformly and fully stirring and mixing by adopting a step-by-step mixing method to obtain a first-stage mixed material, and controlling the water content of the first-stage mixed material to be below 60%;
B. piling the primary mixed material prepared in the step A into a large stack, sealing the stack with a waterproof breathable film, and performing curing maintenance and facultative fermentation retting training to obtain a secondary mixed material;
C. and D, adding the composite conditioning material and the trace elements into the secondary mixed material obtained in the step B, and adding a hydrolyzed polymaleic anhydride organic aqueous solution with the mass ratio of 1: 500 in the mixing and stirring process to adjust the pH value to be in a range of 6-7.5 required by the plant growth conditions.
The raw materials are sludge, construction waste and branches and leaves of agricultural and forestry straws; the powder is one or at least two of mushroom residue, sawdust and bran coat; the composite conditioning material comprises calcium phosphate, humic acid-containing substances, ferrous sulfate and vinegar residues; the microelements comprise ammonium phosphate sulfate, ammonium sulfate, zinc sulfate, magnesium sulfate, borax and calcium nitrate.
As a further scheme, the composite conditioning material comprises, by weight, 15-30% of calcium phosphate, 20-30% of humic acid-containing substances, 10-20% of ferrous sulfate and 20-30% of vinegar residues.
As a further scheme, the trace elements comprise the following components in percentage by weight: 25-45% of ammonium sulfate, 20-45% of ammonium sulfate, 2-8% of zinc sulfate, 4-10% of magnesium sulfate, 2-10% of borax and 3-7% of calcium nitrate.
As a further scheme, the raw materials comprise, by weight, 40-60% of sludge, 20-30% of construction waste and 30-40% of branches and leaves of agricultural and forestry straws.
The invention has the beneficial effects that: the sludge plant-growing concrete water storage particles prepared according to the steps of the invention can kill germs, worm eggs and weed seeds in sludge and excrement through training high temperature in the retting process. The high-efficiency beneficial microorganisms in the hydrogen peroxide fermentation fast-decomposing agent can propagate in a large amount in the retting process and after being applied to soil, so that the pathogenic fungi in the soil can be inhibited and killed for a long time, the disease resistance of crops is enhanced, the absorption of trace elements of nitrogen, phosphorus and potassium is promoted, and the rapid growth of plants is stimulated;
after the curing agent and the swelling agent are added for treatment, the material has good compression and lateral pressure resistant engineering performance, the porosity is increased by more than 20%, and the material has certain water storage, water filtration and slow-release humid air effects, and rainwater flood discharge and air purification can be reduced by using the ecological finished product of the sludge-plant concrete water storage particles, so that the sponge volume for ecological environment construction is supplemented;
after aerobic composting, the physical and chemical properties are stable, the content of organic matters reaches 30 to 50 percent, and the organic matters contain rich nutrient elements such as nitrogen, phosphorus, potassium and the like, and are available for plants. After the harmful heavy metals in the sludge are treated by adding the passivating agent and the curing agent, the toxic leaching amount of the harmful heavy metals is lower than the restriction standard of landscaping and land improvement in China, and the resource recycling of common solid wastes is realized.
The invention has low manufacturing cost and simple manufacturing method, and is beneficial to technical popularization and promotion.
Detailed Description
The technology aims to utilize the ecological and physical basic structural characteristics and universality of sludge, construction waste and agricultural and forestry waste to culture and build the regenerated soil with ecological and engineering functional properties, and focuses on the research on the soil functionality on the basis that the sludge, construction waste and agricultural and forestry waste treatment technology is mature, and focuses on the solidification and expansion treatment process.
The technology is not very strict in sludge selection, the use direction of the regenerated soil is selected according to the applicable property of the sludge, and the technology is suitable for sludge disposal mixed landfill sludge of urban sewage treatment plants, wherein the sludge is in accordance with sludge disposal landscaping mud of urban sewage treatment plants (GB-T23486-2009), sludge improvement mud of sludge disposal soil of urban sewage treatment plants (GB/T24600-2018), and sludge disposal mixed landfill sludge of urban sewage treatment plants (GBT 23485 one 2009)
Technical process range.
First, preparation of experiment
The technology tests relevant contents of experimental projects under the condition of different addition amounts of the curing agent cementing material, and provides basis for the applicability and design of the regenerated soil; and (4) selecting the type of the curing agent by combining an experimental analysis test, determining the addition amount of the curing agent cementing material, and providing a basis for the use direction of the regenerated soil. In the following experiments, a deep experiment is carried out by mainly starting from a curing agent formula and combining different material proportions so as to obtain higher strength and compactness. The following are the optimum formula of different materials and the experimental results of 6-day dry pressure and water-soaking unconfined compressive strength.
Second, experimental data
Considering that the compactness of the powder is not enough after being made into test blocks, the powder is easy to break, and the water soaking effect is influenced, three groups of experiments are specially made, and the water soaking effect is compared by adding additives in different proportions.
Table 1: experiment proportioning table
The experiment aims at different proportions of briquetting, maintenance and measurement experiments among mixed materials, curing agents, passivating agents and swelling agents of the regenerated soil.
In 3 experiments, dry pressure and soak measurements were performed on test blocks of different ages, 7 days, 14 days, and 28 days.
Third, hit real test data
Table 2: material property description and compaction test data
| Description of the samples | Optimum Water content (%) | Maximum dry Density (g/cm)3) |
| Compression block | 15.5 | 1.89 |
Fourth, Water stability test
Table 3: dry pressure and water soaking strength comparison table
From the above data it can be seen that:
a. the dry pressing strength of the curing agent is low due to less added test blocks, and the curing agent is easy to foam and disperse after being soaked in water and is difficult to form;
b. under the condition that the using amounts of the sludge, the construction waste and the straw powder are the same, the additive is correspondingly increased in proportion, the dry pressing strength of the test block is gradually improved, the dry pressing strength is increased by nearly one time at high time, and the water soaking effect is ideal.
Fifth, testing physical and chemical indexes
Table 4: physical and chemical indexes of regenerated soil
Sixth, conclusion of the experiment
Experiments show that the addition of the curing agent with high proportion improves the dry-pressing strength of the test block by nearly one time, and the water soaking effect is more ideal. The curing agent is small in dosage and not high in relative strength, and the reason is that the soil test block is few in viscous molecules, so that the compactness of the cured soil is reduced, and the cured soil is easy to loosen after encountering moisture. Under the simultaneous action of the curing agent, the passivating agent and the swelling agent, the leaching of harmful heavy metals is effectively inhibited, the thorough extermination of the eggs of the disease insects can be promoted, and the physical and biological functions of the soil are retained and enhanced. The method is used for improving the soil and building materials in the soil-based mine of sludge, construction waste and agricultural and forestry waste.
Claims (3)
1. A method for preparing regenerated soil by adopting municipal sludge and agricultural and forestry wastes is characterized by comprising the following steps:
A. the sludge is divided into domestic sludge and industrial sludge;
3-4% of cementing curing agent, 5-6% of swelling agent and 3-5% of heavy metal passivator are added according to the water content of the domestic sludge, the total amount of the building garbage and the branches and leaves of the agricultural and forestry straws being 50-60% and are uniformly mixed; mixing the RW quick-rotting agent and the powdery material according to a ratio of 1:6, adding diammonium phosphate with the mass content of 5% to prepare the dioxygen fermentation quick-rotting agent, and adding the dioxygen fermentation quick-rotting agent by one ten thousandth of the total mixed material amount; uniformly and fully stirring and mixing by adopting a step-by-step mixing method to obtain a first-stage mixed material, and controlling the water content of the first-stage mixed material to be below 60%;
adding 4-5% of cementing curing agent, 7-8% of swelling agent and 5-6% of heavy metal passivator into the industrial sludge according to the water content of the industrial sludge, the total amount of construction waste and branches and leaves of agricultural and forestry straws being 50-60% and uniformly mixing; mixing the RW quick-rotting agent and the powdery material according to a ratio of 1:6, adding diammonium phosphate with the mass content of 5% to prepare the dioxygen fermentation quick-rotting agent, and adding the dioxygen fermentation quick-rotting agent by one ten thousandth of the total mixed material amount; uniformly and fully stirring and mixing by adopting a step-by-step mixing method to obtain a first-stage mixed material, and controlling the water content of the first-stage mixed material to be below 60%;
B. piling the primary mixed material prepared in the step A into a large stack, sealing the stack with a waterproof breathable film, and performing curing maintenance and facultative fermentation retting training to obtain a secondary mixed material;
C. adding a composite conditioning material and trace elements into the secondary mixed material obtained in the step B, and adding a hydrolyzed polymaleic anhydride organic aqueous solution with the mass ratio of 1: 500 in the mixing and stirring process to adjust the pH value to be in a range of 6-7.5 required by the plant growth conditions;
the powdery material is one or at least two of mushroom residue, sawdust and bran coat; the composite conditioning material comprises calcium phosphate, humic acid-containing substances, ferrous sulfate and vinegar residues; the microelements comprise ammonium phosphate sulfate, ammonium sulfate, zinc sulfate, magnesium sulfate, borax and calcium nitrate.
2. The method for preparing regenerated soil from municipal sludge and agricultural and forestry residues according to claim 1, wherein the composite conditioning material comprises, by weight, 15-30% of calcium phosphate, 20-30% of humic acid-containing substances, 10-20% of ferrous sulfate and 20-30% of vinegar residue.
3. The method for preparing the regenerated soil by adopting the municipal sludge and the agricultural and forestry wastes according to claim 1, wherein the trace elements comprise the following components in percentage by weight: 25-45% of ammonium sulfate, 20-45% of ammonium sulfate, 2-8% of zinc sulfate, 4-10% of magnesium sulfate, 2-10% of borax and 3-7% of calcium nitrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010454761.XA CN111618069B (en) | 2020-05-26 | 2020-05-26 | Method for preparing regenerated soil by adopting municipal sludge and agricultural and forestry wastes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010454761.XA CN111618069B (en) | 2020-05-26 | 2020-05-26 | Method for preparing regenerated soil by adopting municipal sludge and agricultural and forestry wastes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111618069A CN111618069A (en) | 2020-09-04 |
| CN111618069B true CN111618069B (en) | 2021-11-05 |
Family
ID=72256139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010454761.XA Active CN111618069B (en) | 2020-05-26 | 2020-05-26 | Method for preparing regenerated soil by adopting municipal sludge and agricultural and forestry wastes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111618069B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114671715A (en) * | 2022-02-09 | 2022-06-28 | 浙江千源环保科技有限公司 | Method for preparing regenerated nutrient soil by adopting urban organic wastes and agricultural and forestry wastes |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1467178A (en) * | 2002-06-28 | 2004-01-14 | 张传镁 | Slag sintered aggregate and preparation method thereof |
| JP2007175556A (en) * | 2004-06-17 | 2007-07-12 | One Uiru:Kk | Method for producing novel material with highly functional capability from waste diatomaceous earth, and novel material with highly functional capability by the waste diatomaceous earth |
| CN103693910A (en) * | 2013-12-05 | 2014-04-02 | 青岛润国生态科技发展有限公司 | Vegetation concrete for promoting plant growth |
| CN105861285A (en) * | 2016-06-03 | 2016-08-17 | 北京峻德安装工程有限公司 | Utilization system of municipal sewage sludge, park waste and rural straw waste as resources |
| CN108059991A (en) * | 2017-08-21 | 2018-05-22 | 重庆大雨水生态科技有限公司 | A kind of New-type fuel and brick, haydite, cement, fiberboard based on heavy metal sewage sludge |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020035858A1 (en) * | 2000-04-14 | 2002-03-28 | Forsha Chris A. | Treatment of sludge and animal wastes |
-
2020
- 2020-05-26 CN CN202010454761.XA patent/CN111618069B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1467178A (en) * | 2002-06-28 | 2004-01-14 | 张传镁 | Slag sintered aggregate and preparation method thereof |
| JP2007175556A (en) * | 2004-06-17 | 2007-07-12 | One Uiru:Kk | Method for producing novel material with highly functional capability from waste diatomaceous earth, and novel material with highly functional capability by the waste diatomaceous earth |
| CN103693910A (en) * | 2013-12-05 | 2014-04-02 | 青岛润国生态科技发展有限公司 | Vegetation concrete for promoting plant growth |
| CN105861285A (en) * | 2016-06-03 | 2016-08-17 | 北京峻德安装工程有限公司 | Utilization system of municipal sewage sludge, park waste and rural straw waste as resources |
| CN108059991A (en) * | 2017-08-21 | 2018-05-22 | 重庆大雨水生态科技有限公司 | A kind of New-type fuel and brick, haydite, cement, fiberboard based on heavy metal sewage sludge |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111618069A (en) | 2020-09-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102010109B (en) | Application of bio-enzyme catalysis in residual sludge treatment | |
| US20190300407A1 (en) | Biological Floc and Uses Thereof, for example, in Sludge Innocent Treatment and Industrial Water Purification Treatment | |
| CN106967435B (en) | Preparation method of multifunctional soil conditioner | |
| CN102531781B (en) | Substrate for raising or cultivating vegetable seedling and preparation method thereof | |
| CN105037027A (en) | Environment-friendly bio-based organic fertilizer and preparation method thereof | |
| CN103755400A (en) | Method for preparing mineral organic fertilizer by using surplus sludge in municipal sewage plants | |
| CN104829325A (en) | Straw biomass charcoal-based urea and preparation method thereof | |
| CN102408177A (en) | Biological complex enzyme for sludge recycling and use method thereof | |
| CN103319265A (en) | Special carbon-based slow release nitrogen fertilizer for vegetable fields and preparation method thereof | |
| CN112592240A (en) | Bio-carbon-based composite conditioner for repairing soil cadmium pollution and preparation method thereof | |
| CN104987216A (en) | Sludge carbon-based bio-organic fertilizer and preparation method thereof | |
| CN114988965A (en) | Sludge and derivative with water content of eighty percent treated at high speed and preparation method thereof | |
| CN108752127A (en) | A kind of biomass castoff soil conditioner in improvement salt-soda soil | |
| CN109400381A (en) | A kind of formula improving soil | |
| CN111618069B (en) | Method for preparing regenerated soil by adopting municipal sludge and agricultural and forestry wastes | |
| CN113636896A (en) | Method for promoting sandy aggregate dewatered sludge to be in soil by using wood processing excess material and biochar thereof | |
| CN104311177A (en) | Method of preparing bio-organic fertilizer by utilizing papermaking sludge and tradtional Chinese medicine residues | |
| CN103058717A (en) | Heavy metal treatment technology for heavy metal adsorption, dehydration and fertilizer preparation | |
| CN101307234B (en) | Organic modifying agent for low-yield soil and method for preparing same | |
| CN112979366A (en) | Method for producing greening matrix by quickly composting dredged sediment | |
| CN108101640A (en) | A kind of method that cultivation matrix is prepared using afforestation discarded object | |
| Iqbal et al. | Effect of nutrient concentration and pH on growth and nutrient removal efficiency of duckweed (Lemna minor) from natural solid waste leachate | |
| CN111592419A (en) | Composite modifier for rare earth mining area soil remediation and preparation method thereof | |
| CN106278761A (en) | A kind of method utilizing residual active sludge and wood waste to prepare fertilizer | |
| Lu et al. | Role of rural solid waste management in non-point source pollution control of Dianchi Lake catchments, China |
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 |