CN114773116A - Preparation method and application of soil remediation material prepared from coal-based solid wastes - Google Patents
Preparation method and application of soil remediation material prepared from coal-based solid wastes Download PDFInfo
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- CN114773116A CN114773116A CN202210516382.8A CN202210516382A CN114773116A CN 114773116 A CN114773116 A CN 114773116A CN 202210516382 A CN202210516382 A CN 202210516382A CN 114773116 A CN114773116 A CN 114773116A
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- 239000000463 material Substances 0.000 title claims abstract description 82
- 239000002689 soil Substances 0.000 title claims abstract description 78
- 239000003245 coal Substances 0.000 title claims abstract description 52
- 239000002910 solid waste Substances 0.000 title claims abstract description 26
- 238000005067 remediation Methods 0.000 title claims abstract description 24
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- 239000010902 straw Substances 0.000 claims description 36
- 239000010802 sludge Substances 0.000 claims description 31
- 239000002893 slag Substances 0.000 claims description 30
- 238000002156 mixing Methods 0.000 claims description 25
- 239000007787 solid Substances 0.000 claims description 20
- 239000003795 chemical substances by application Substances 0.000 claims description 19
- 239000002245 particle Substances 0.000 claims description 19
- 239000003575 carbonaceous material Substances 0.000 claims description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- 239000010881 fly ash Substances 0.000 claims description 13
- 238000000855 fermentation Methods 0.000 claims description 12
- 230000004151 fermentation Effects 0.000 claims description 12
- 239000003381 stabilizer Substances 0.000 claims description 12
- 239000010865 sewage Substances 0.000 claims description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 10
- 229910052799 carbon Inorganic materials 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 7
- 230000000813 microbial effect Effects 0.000 claims description 7
- 238000001035 drying Methods 0.000 claims description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims description 6
- 239000012300 argon atmosphere Substances 0.000 claims description 5
- 239000012299 nitrogen atmosphere Substances 0.000 claims description 5
- 239000000843 powder Substances 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 4
- 244000063299 Bacillus subtilis Species 0.000 claims description 3
- 235000014469 Bacillus subtilis Nutrition 0.000 claims description 3
- 241000881860 Paenibacillus mucilaginosus Species 0.000 claims description 3
- 239000007633 bacillus mucilaginosus Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 244000068988 Glycine max Species 0.000 claims description 2
- 235000010469 Glycine max Nutrition 0.000 claims description 2
- 240000006240 Linum usitatissimum Species 0.000 claims description 2
- 235000004431 Linum usitatissimum Nutrition 0.000 claims description 2
- 240000006394 Sorghum bicolor Species 0.000 claims description 2
- 235000011684 Sorghum saccharatum Nutrition 0.000 claims description 2
- 235000021307 Triticum Nutrition 0.000 claims description 2
- 244000098338 Triticum aestivum Species 0.000 claims description 2
- 240000008042 Zea mays Species 0.000 claims description 2
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 claims description 2
- 235000002017 Zea mays subsp mays Nutrition 0.000 claims description 2
- 235000005822 corn Nutrition 0.000 claims description 2
- 238000002309 gasification Methods 0.000 claims description 2
- 238000005065 mining Methods 0.000 abstract description 9
- 238000011065 in-situ storage Methods 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 241000196324 Embryophyta Species 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000035699 permeability Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 239000010883 coal ash Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 210000003608 fece Anatomy 0.000 description 1
- 230000035558 fertility Effects 0.000 description 1
- 229910003439 heavy metal oxide Inorganic materials 0.000 description 1
- 239000010871 livestock manure Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 244000144977 poultry Species 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05D—INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
- C05D9/00—Other inorganic fertilisers
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
- C05F17/20—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation using specific microorganisms or substances, e.g. enzymes, for activating or stimulating the treatment
-
- 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
-
- 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
- C05G3/80—Soil conditioners
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K17/00—Soil-conditioning materials or soil-stabilising materials
- C09K17/40—Soil-conditioning materials or soil-stabilising materials containing mixtures of inorganic and organic compounds
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2101/00—Agricultural use
Abstract
The invention relates to the technical field of soil remediation, in particular to a preparation method and application of a soil remediation material prepared from coal-based solid wastes. Organic matters and inorganic matters are reasonably proportioned, so that the content of the organic matters is increased, the physical and chemical properties of soil are improved, the solid waste can be utilized in situ to the maximum extent while the coal-based solid waste in a mining area is fully utilized, and the reduction of the repairing cost of the soil in the mining area is facilitated.
Description
Technical Field
The invention relates to the technical field of soil remediation, in particular to a preparation method and application of a soil remediation material prepared from coal-based solid wastes.
Background
On one hand, the development of a mining area causes a large amount of coal-based solid wastes such as waste gangue, furnace slag, coal ash and the like, and causes serious problems of environmental landscape destruction, environmental air pollution, land occupation and the like; on the other hand, mining in a mining area can cause a certain land subsidence, and a subsidence area treatment project needs to be carried out.
The invention discloses an ecological restoration material for soil of a forest land and a preparation method thereof, the ecological restoration material is prepared by mainly utilizing agricultural and forestry wastes, sludge, animal and poultry manure and the like, biochar is prepared by doping, drying, granulating and calcining, and the utilization of coal-based solid wastes can solve the problem of waste disposal and utilization and can realize the economic advantage of locally-obtained materials of the ecological restoration material.
The existing forest land soil ecological restoration material has relatively complex preparation process, less inorganic components and low economical efficiency, and is difficult to restore large-area sunk areas or damaged surface soil of mining areas.
Disclosure of Invention
The invention aims to provide a preparation method and application of a soil remediation material prepared from coal-based solid wastes, and solves the technical problems that the existing forest land soil ecological remediation material is relatively complex in preparation process, less in inorganic components and possibly low in economical efficiency, and is difficult to restore a sunk area or damaged surface soil in a large area.
In order to realize the aim, the invention provides a preparation method for preparing a soil remediation material by using coal-based solid wastes, which comprises the following steps:
preparing sludge generated in the biochemical treatment stage of domestic sewage into a loose and porous biological carbon material;
processing the coal gangue, the furnace slag and the crop straws to obtain solid granular coal gangue, furnace slag and powdery crop straws;
mixing and fermenting the processed biological carbon material, coal gangue, furnace slag and crop straw with fly ash, water-retaining agent, stabilizer and water in proportion to obtain a mixed material;
and airing the mixed material to prepare the soil ecological restoration material.
Wherein, the step of preparing the sludge generated in the biochemical treatment stage of the domestic sewage into the loose and porous biological carbon material specifically comprises the following steps:
drying sludge generated in the biochemical treatment stage of domestic sewage at 105-110 ℃ for 8-12 h, and crushing the dried sludge into solid particles of 0.1-0.5 mm;
and roasting the solid granular sludge to obtain the loose and porous biological carbon material.
Wherein, in the steps of roasting solid granular sludge to prepare loose and porous biological carbon material after roasting:
roasting at 300-600 ℃ for 1-2 h at a temperature rise rate of 5-10 ℃/min in a nitrogen or argon atmosphere.
Wherein, in the step of processing the coal gangue, the slag and the crop straws to obtain the solid granular coal gangue and the solid granular slag:
the method comprises the steps of crushing coal gangue and slag into solid particles with the particle size of 2-3 mm, crushing crop straws into powder, wherein the slag is generated by a coal-fired hot water boiler and a gasification furnace, and the crop straws are one or a mixture of more than one of corn stalks, sorghum straws, flax straws, wheat straws, corncobs, soybean straws, hay and the like in any proportion.
Wherein, in the step of mixing and fermenting the biological carbon material, the coal gangue, the slag and the crop straw which are obtained by treatment with the fly ash, the water-retaining agent, the stabilizing agent and the water in proportion to obtain the mixed material:
when being mixed, the mixed materials comprise the following components in parts by mass: 10-20 parts of sludge carbon, 10-30 parts of coal gangue, 10-30 parts of furnace slag, 20-40 parts of crop straws, 5-10 parts of fly ash, 0.1-1 part of water-retaining agent, 0.1-1 part of stabilizer and 50-80 parts of water.
Wherein, in the step of mixing and fermenting the biological carbon material, the coal gangue, the slag and the crop straw which are obtained by treatment with the fly ash, the water-retaining agent, the stabilizing agent and the water in proportion to obtain the mixed material:
after mixing, the mixed material is mixed with a microbial agent for sealed fermentation, wherein the fermentation temperature is 20-30 ℃, and the fermentation time is 15-30 days; the microbial agent is one of bacillus subtilis and bacillus mucilaginosus or is mixed in any proportion.
The invention also provides an application of the soil remediation material prepared by the preparation method for preparing the soil remediation material from the coal-based solid waste, which comprises the following steps:
deeply ploughing and airing soil on the surface of the soil to be repaired, crushing and flattening the soil, and mixing the crushed soil with the soil repairing material;
and (3) shallow ploughing and mixing the mixed soil surface soil, and fully mixing the ecological restoration material with the surface soil.
The preparation method and the application of the soil remediation material prepared from the coal-based solid waste have the following beneficial effects:
1. the biochemical sludge is roasted, so that the porosity of the material can be improved, and the water retention and air permeability functions of the material can be improved while the sludge is fully utilized. Heavy metal ions in the sludge are converted into metal oxides through roasting, and the heavy metal oxides are generally not easy to dissolve in water, so that the problem of heavy metal ion pollution in the sludge is effectively solved.
2. The material prepared by the invention fully considers the appropriate combination of organic matters and inorganic matters, not only considers that the organic matters can rapidly provide fertility, but also fully considers that the inorganic matters are utilized to improve the air permeability of the soil, thereby effectively avoiding the problem of soil hardening without causing the problems of soil water seepage and weak air permeability caused by excessive organic matters.
3. The material prepared by the invention is added with a certain amount of fly ash, which is beneficial to the bonding of organic matters and coal-based solid waste materials and the uniform release of nitrogen, phosphorus and potassium nutrients from biomass to soil.
4. The sludge generated in the biochemical treatment stage of the domestic sewage is carbonized, so that the bond breaking and depolymerization of organic carbon in the sludge components are facilitated, and carbon elements are fully released into the soil. The capillary structure formed in the carbonization process improves the porosity of the material and is also beneficial to improving the water retention property of the soil.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.
FIG. 1 is a preparation method of a soil remediation material prepared from coal-based solid wastes provided by the invention.
Detailed Description
Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the embodiments described below with reference to the accompanying drawings are exemplary and intended to be illustrative of the present invention and are not to be construed as limiting the present invention.
Referring to fig. 1, the invention provides a method for preparing a soil remediation material from coal-based solid waste, which comprises the following steps:
s1: preparing sludge generated in the biochemical treatment stage of domestic sewage into a loose and porous biological carbon material;
s2: processing the coal gangue, the furnace slag and the crop straws to obtain solid granular coal gangue, furnace slag and powdery crop straws;
s3: mixing and fermenting the processed biological carbon material, coal gangue, furnace slag and crop straw with fly ash, water-retaining agent, stabilizer and water in proportion to obtain a mixed material;
s4: and airing the mixed material to prepare the soil ecological restoration material.
The invention also provides an application of the soil remediation material prepared by the preparation method for preparing the soil remediation material from the coal-based solid waste, which comprises the following steps:
deep ploughing and airing soil on the surface of the soil to be repaired, crushing and leveling the soil, and mixing the ground and leveled soil with the soil repairing material;
and (3) shallow-turning and mixing the mixed soil surface soil, and fully mixing the ecological restoration material with the surface soil.
Example 1:
step 1: drying sludge generated in the biochemical treatment stage of domestic sewage at 105 ℃ for 10 hours, and crushing the dried sludge into solid particles of 0.1-0.5 mm; roasting the prepared carbon particles at 500 ℃ for 1.5h at the heating rate of 5-10 ℃/min, roasting in a nitrogen or argon atmosphere, and roasting to obtain a loose and porous biological carbon material;
step 2: the coal gangue and the furnace slag are crushed into solid particles with the particle size of 2-3 mm, and the crop straws are crushed into powder. According to the sludge carbon: coal gangue: slag: crop straw: fly ash: water-retaining agent: a stabilizer: 20 parts of water: 20: 25: 23: 10: 1: 1: 80 in a ratio of 80. And mixing the mixed material with a microbial agent, sealing and fermenting, wherein the fermentation temperature is preferably 20-30 ℃, and the fermentation time is 20 days.
And 3, step 3: and airing the prepared fermented mixed material to prepare the material for soil ecological restoration.
And 4, step 4: the soil ecological restoration material prepared from the coal-based solid waste is used for ecological management of desertification land in a certain mining area in northwest China. And (3) fully exposing the surface soil to be repaired to the sun, then crushing and leveling, covering the ecological repair material prepared by the invention on the treated surface soil, fully mixing with the surface soil with the depth of more than 20cm, adding 10t of the ecological repair material per hectare, and planting annual herbaceous plants. After 4 months of growth, the dry weight of the plants was increased by more than 15% compared to the control group without the material.
Example 2:
step 1: drying sludge generated in the biochemical treatment stage of domestic sewage at 105 ℃ for 10 hours, and crushing the dried sludge into solid particles of 0.1-0.5 mm; roasting the prepared carbon particles at 500 ℃ for 1.5h at the heating rate of 5-10 ℃/min, roasting in a nitrogen or argon atmosphere, and roasting to obtain a loose and porous biological carbon material;
and 2, step: the coal gangue and the furnace slag are crushed into solid particles with the particle size of 2-3 mm, and the crop straws are crushed into powder. According to the sludge carbon: coal gangue: slag: crop straw: fly ash: water-retaining agent: a stabilizer: 20 parts of water: 10: 23: 40: 5: 1: 1: 60, and mixing well. And mixing the mixed material with a microbial agent, sealing and fermenting, wherein the fermentation temperature is preferably 20-30 ℃, and the fermentation time is 30 days.
And step 3: and (3) airing the prepared fermented mixed material to prepare the material for soil ecological restoration.
And 4, step 4: the soil ecological restoration material prepared from the coal-based solid wastes is used for ecological management of desertified land in a certain mining area in northwest China. Fully exposing the surface soil to be restored to the sun, then crushing and leveling, covering the ecological restoration material prepared by the invention on the processed surface soil, fully mixing the ecological restoration material with the surface soil with the depth of more than 20cm, adding 10t of the ecological restoration material per hectare, and planting annual herbaceous plants. After 4 months of growth, the dry weight of the plants was increased by more than 30% compared to the control without the material.
Example 3:
step 1: drying sludge generated in the biochemical treatment stage of domestic sewage at 105 ℃ for 10 hours, and crushing the dried sludge into solid particles of 0.1-0.5 mm; roasting the prepared carbon particles at 500 ℃ for 1.5h at the heating rate of 5-10 ℃/min, roasting in a nitrogen or argon atmosphere, and roasting to obtain a loose and porous biological carbon material;
and 2, step: the coal gangue and the furnace slag are crushed into solid particles with the particle size of 2-3 mm, and the crop straws are crushed into powder. According to the sludge carbon: coal gangue: slag: crop straw: fly ash: water-retaining agent: a stabilizer: water 27: 20: 25: 30: 10: 1: 1: 0 are mixed well. And mixing the mixed material with a microbial agent, sealing and fermenting, wherein the fermentation temperature is preferably 20-30 ℃, and the fermentation time is 30 days.
And step 3: and airing the prepared fermented mixed material to prepare the material for soil ecological restoration.
And 4, step 4: the soil ecological restoration material prepared from the coal-based solid wastes is used for ecological management of desertified land in a certain mining area in northwest China. Fully exposing the surface soil to be restored to the sun, then crushing and leveling, covering the ecological restoration material prepared by the invention on the processed surface soil, fully mixing the ecological restoration material with the surface soil with the depth of more than 20cm, adding 10t of the ecological restoration material per hectare, and planting annual herbaceous plants. After 4 months of growth, the dry weight of the plants was increased by more than 20% compared to the control group without the material.
While the above disclosure describes one or more preferred embodiments of the present invention, it is not intended to limit the scope of the claims to such embodiments, and one skilled in the art will understand that all or a portion of the processes performed in the above embodiments may be practiced without departing from the spirit and scope of the claims.
Claims (7)
1. A preparation method for preparing a soil remediation material from coal-based solid wastes is characterized by comprising the following steps:
preparing sludge generated in the biochemical treatment stage of domestic sewage into a loose and porous biological carbon material;
processing the coal gangue, the furnace slag and the crop straws to obtain solid granular coal gangue, furnace slag and powdery crop straws;
mixing and fermenting the processed biological carbon material, coal gangue, furnace slag and crop straw with fly ash, water-retaining agent, stabilizer and water in proportion to obtain a mixed material;
and airing the mixed material to prepare the soil ecological restoration material.
2. The method for preparing a soil remediation material from coal-based solid waste as claimed in claim 1, wherein the step of preparing the sludge generated in the biochemical treatment stage of domestic sewage into the loose and porous biological carbon material specifically comprises:
drying sludge generated in the biochemical treatment stage of domestic sewage at 105-110 ℃ for 8-12 h, and crushing the dried sludge into solid particles with the particle size of 0.1-0.5 mm;
and (3) roasting the solid granular sludge to obtain the loose and porous biological carbon material.
3. The method for preparing the soil remediation material from the coal-based solid waste as claimed in claim 2, wherein the step of roasting the solid granular sludge to obtain the loose and porous biological carbon material comprises the following steps:
the roasting temperature is 300-600 ℃, the roasting time is 1-2 h, the heating rate is 5-10 ℃/min, and the roasting is carried out in the nitrogen or argon atmosphere.
4. The preparation method of the soil remediation material prepared from the coal-based solid waste as claimed in claim 3, wherein the step of processing the coal gangue, the slag and the crop straws to obtain the solid granular coal gangue and the slag and the powdery crop straws comprises:
the method comprises the steps of crushing coal gangue and slag into solid particles with the particle size of 2-3 mm, crushing crop straws into powder, wherein the slag is generated by a coal-fired hot water boiler and a gasification furnace, and the crop straws are one or a mixture of more than one of corn stalks, sorghum straws, flax straws, wheat straws, corncobs, soybean straws, hay and the like in any proportion.
5. The method for preparing the soil remediation material from the coal-based solid waste as claimed in claim 4, wherein the step of mixing and fermenting the processed biochar material, coal gangue, slag, crop straw, fly ash, water-retaining agent, stabilizer and water in proportion to obtain the mixed material comprises:
when the mixed materials are mixed, the mixed materials are calculated according to the mass parts: 10-20 parts of sludge carbon, 10-30 parts of coal gangue, 10-30 parts of furnace slag, 20-40 parts of crop straws, 5-10 parts of fly ash, 0.1-1 part of water-retaining agent, 0.1-1 part of stabilizer and 50-80 parts of water.
6. The method for preparing the soil remediation material from the coal-based solid waste as claimed in claim 5, wherein the step of mixing and fermenting the processed biochar material, coal gangue, slag, crop straw, fly ash, water-retaining agent, stabilizer and water in proportion to obtain the mixed material comprises:
after mixing, the mixed material is mixed with a microbial agent for sealed fermentation, wherein the fermentation temperature is 20-30 ℃, and the fermentation time is 15-30 days; the microbial agent is one of bacillus subtilis and bacillus mucilaginosus or a mixture of the bacillus subtilis and the bacillus mucilaginosus in any proportion.
7. The application of the soil remediation material prepared by the preparation method of the soil remediation material from the coal-based solid waste of claim 6, is characterized by comprising the following steps:
deep ploughing and airing soil on the surface of the soil to be repaired, crushing and leveling the soil, and mixing the ground and leveled soil with the soil repairing material;
and (3) shallow-turning and mixing the mixed soil surface soil, and fully mixing the ecological restoration material with the surface soil.
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| CN202210516382.8A CN114773116A (en) | 2022-05-12 | 2022-05-12 | Preparation method and application of soil remediation material prepared from coal-based solid wastes |
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| CN202210516382.8A CN114773116A (en) | 2022-05-12 | 2022-05-12 | Preparation method and application of soil remediation material prepared from coal-based solid wastes |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115926805A (en) * | 2022-11-23 | 2023-04-07 | 安徽拓水环境工程科技有限公司 | Soil remediation composition and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103801556A (en) * | 2014-02-18 | 2014-05-21 | 广州中国科学院先进技术研究所 | Method for repairing soil containing novel organic pollutant by using sludge biological carbon |
| CN107201233A (en) * | 2017-06-23 | 2017-09-26 | 合肥市风达农业有限责任公司 | A kind of ecological, environmental protective soil conditioner and preparation method thereof |
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- 2022-05-12 CN CN202210516382.8A patent/CN114773116A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103801556A (en) * | 2014-02-18 | 2014-05-21 | 广州中国科学院先进技术研究所 | Method for repairing soil containing novel organic pollutant by using sludge biological carbon |
| CN107201233A (en) * | 2017-06-23 | 2017-09-26 | 合肥市风达农业有限责任公司 | A kind of ecological, environmental protective soil conditioner and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115926805A (en) * | 2022-11-23 | 2023-04-07 | 安徽拓水环境工程科技有限公司 | Soil remediation composition and preparation method thereof |
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