CN117801827A - Preparation technical method of barren soil conditioner in mountain area of plateau - Google Patents
Preparation technical method of barren soil conditioner in mountain area of plateau Download PDFInfo
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- CN117801827A CN117801827A CN202410233773.8A CN202410233773A CN117801827A CN 117801827 A CN117801827 A CN 117801827A CN 202410233773 A CN202410233773 A CN 202410233773A CN 117801827 A CN117801827 A CN 117801827A
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- 229910052698 phosphorus Inorganic materials 0.000 description 3
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- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 description 3
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- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical compound [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 description 3
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- 239000002245 particle Substances 0.000 description 2
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- 235000009566 rice Nutrition 0.000 description 2
- 241000186361 Actinobacteria <class> Species 0.000 description 1
- 241000194108 Bacillus licheniformis Species 0.000 description 1
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- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
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- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 229910003480 inorganic solid Inorganic materials 0.000 description 1
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- 235000019354 vermiculite Nutrition 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
Classifications
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- 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
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05D—INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
- C05D3/00—Calcareous fertilisers
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- 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
- C05F17/10—Addition or removal of substances other than water or air to or from the material 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
- 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
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- 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
- C05F17/50—Treatments combining two or more different biological or biochemical treatments, e.g. anaerobic and aerobic treatment or vermicomposting and aerobic 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
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/80—Soil conditioners
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- 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
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- 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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- Chemical & Material Sciences (AREA)
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- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Molecular Biology (AREA)
- Biochemistry (AREA)
- Biotechnology (AREA)
- General Chemical & Material Sciences (AREA)
- Microbiology (AREA)
- Pest Control & Pesticides (AREA)
- Soil Sciences (AREA)
- Inorganic Chemistry (AREA)
- Tropical Medicine & Parasitology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
- Fertilizers (AREA)
Abstract
The invention discloses a preparation technical method of a barren soil conditioner for a mountain area of a plateau, which comprises the steps of mixing excess sludge of a sewage plant with organic wastes such as cow dung and kitchen waste, sequentially adding a bulking agent and a conditioning agent, adding two microbial agents such as compound bacillus and compound fungi into a mixture, carrying out primary fermentation composting for 12-16 d, timely adjusting air supply oxygenation intensity according to the condition of temperature rise of a pile body, controlling the primary fermentation temperature of the compost at 48-56 ℃, continuing post fermentation treatment, adding a arbuscular mycorrhizal accelerant into a composting product, and the prepared soil conditioner can effectively solve the problems of low organic matter content, mineral element deficiency, soil hardening, poor water storage and soil moisture preservation effects and the like of barren soil for the mountain area of the plateau.
Description
Technical Field
The invention belongs to the technical field of ecological environment restoration in mining areas and sustainable development of plateau agriculture, and particularly relates to a technical method for preparing a barren soil conditioner in a mountain area of a plateau.
Background
The Yun Guigao original region has strong chemical weathering and leaching effects, low soil fertility and prominent barrier characteristics of acid, viscosity and thinness, and restricts the sustainable development of the plateau special agriculture. According to the second national soil census data, most cultivated lands in China lack organic matters, total nitrogen and available phosphorus content, and the soil barren phenomenon is serious. Compared with plain areas, the mountain areas of the plateau have the characteristics of complex terrains, various climate changes and the like, the hydrothermal conditions of the soil of the mountain areas are obviously influenced, the formation and development of the soil are further influenced, and the differences of the slope of the terrains and the land utilization mode finally result in thin soil layers, easy scouring and erosion, poor water retention capacity and large ecological restoration difficulty of mountain bodies of the mountain areas. The main methods for improving the barren soil in the mountain area of the plateau are commonly used nowadays: the organic fertilizer or the soil conditioner is added, and a reasonable intercropping system is implemented, wherein the soil conditioner can provide nutrients, organic matters and the like for the soil, so that the soil humidity is increased, and the normal utilization of the soil is not influenced, thereby being widely applied.
At present, a plurality of soil amendments are developed aiming at saline-alkali soil, acid soil, heavy metal pollution and the like in the market, but the fertility level is uneven, and meanwhile, the problems of low organic matter content, unstable effect and high production cost exist. The prior patent CN113604224A provides a composite modifier for barren soil in mountain areas and a use method thereof, wherein the water-retaining agent, the organic fertilizer, the rice hull charcoal and the microbial agent are prepared into the composite modifier according to a proportion, the organic fertilizer is prepared by high-temperature aerobic fermentation of decomposed chicken manure, garden waste and vermiculite powder, bacillus subtilis, arbuscular mycorrhizal fungi, bacillus licheniformis, actinomycetes and biological enzymes are added, the prepared composite modifier is spread on the surface of barren soil, and the plant survival rate of a grass seed sowing mode can be increased by ploughing and loosening soil, so that the ecological landscape restoration effect in the mountain areas is improved. In the implementation process of the patent, polyacrylamide and sodium polyacrylate are directly added as water retention agents to improve the water retention and moisturizing capability of soil, and although the polyacrylamide and the sodium polyacrylate have good water solubility and good moisturizing effect, the polyacrylamide and the sodium polyacrylate are more applied to the field of water treatment to be used as water purification agents, and the potential risks of the barren soil improvement process such as soil particle adhesion, biotoxicity and the like are not clear. The soil conditioner with strong applicability, stable effect and proper selling price is developed to realize the quality improvement and the efficiency improvement of the barren soil, which is still the key content of the ecological environment restoration in the mountain area of the plateau and the focus of the sustainable development of agriculture.
Disclosure of Invention
The invention provides a preparation technical method of a barren soil conditioner for a mountain area of a plateau, which comprises the steps of uniformly mixing excess sludge of a sewage treatment plant with organic wastes such as cow dung and kitchen waste, adding a bulking agent, a conditioner and a compound microbial agent, carrying out main fermentation treatment on high-temperature compost, continuing post-fermentation treatment, reducing the water content of the heap to 36+/-2%, and adding a arbuscular mycorrhizal promoter into a compost product, wherein the obtained product is suitable for improving and conditioning barren soil for the mountain area of the plateau. The organic waste adopted by the technology contains rich protein, starch and polysaccharide components, and more rich organic matters are released during high-temperature composting so as to generate humus through Maillard reaction; the residual sludge is rich in nitrogen and phosphorus, and has good water and soil moisture preserving effects; the conditioner and the compound microbial agent are added into the composting system at the same time, and mineral element dissolution is promoted through the synergism of bacteria and fungi with good decomposition effect on silicate minerals. The prepared soil conditioner has high organic matter and mineral element content, good air permeability and good soil water storage and soil moisture preservation performance, can effectively relieve the problems of low organic matter content, nutrient element deficiency, soil hardening and the like of the plateau barren soil, and obviously improves the soil productivity.
The implementation steps of the invention are as follows:
(1) Mixing the excess sludge of the sewage plant with other organic solid wastes, adjusting the initial water content to 61-65%, sequentially adding a bulking agent, a conditioning agent and a microbial agent, carrying out primary fermentation treatment on the compost for 12-16 d, timely adjusting the air supply oxygenation strength according to the temperature rising rate of the compost, and controlling the primary fermentation temperature of the compost at 48-56 ℃;
(2) And continuing post-fermentation treatment for 15-20 d, controlling the water content of the pile body to be 34-38%, returning part of compost products to the compost mixture material in the main fermentation stage, blending the initial water content of the compost mixture material, and adding arbuscular mycorrhizal accelerant into the rest of compost products to obtain the product for improving and conditioning barren soil in mountain areas of the plateau.
Further, the other organic matter solid waste in the step (1) is any one or more of cow dung, kitchen waste and crop straw; the mixed materials in the main fermentation stage of the compost have the sludge ratio of 40-60%, the cow dung ratio of 30-50%, the kitchen waste ratio of 0-10% and the crop straw ratio of 0-15%.
Furthermore, the residual sludge and the cow dung need to be pretreated before being mixed, specifically, the moisture content is reduced to be approximately 65% by adopting a ventilation airing or quick air drying mode, and the treatment time in the process is controlled to be 10-36 hours.
Further, the kitchen waste is pretreated before being added into the compost mixture, the kitchen waste after removing oil stains is crushed and transferred to a saccharification tank at 48-60 ℃, the pH value of slurry is controlled to be 5.5-6.5, amylase is added according to the proportion of 0.8-1.8 per mill of dry solid matters in the slurry, and the heat preservation treatment is carried out for 1.6-2.0 h.
Further, the swelling agent is pine cone, peanut shell and expanded perlite, and the mass ratio of the swelling agent to the peanut shell is 1: (0.8-1.2): (0.05-0.3), wherein the addition amount of the bulking agent is 4-9% of the mass of the mixture in the main fermentation stage.
Furthermore, the addition amount of the bulking agent is 4.5-7.5% of the mass of the mixture in the main fermentation stage
Further, the conditioning agent consists of A, B two substances, and the mass ratio of the conditioning agent is (6-9): 1, the addition amount of the modifier is 1.5% -3.0% of the mass of the mixture in the main fermentation stage; the A-type conditioning agent is a combination of any two of plagioclase, anorthite and wollastonite, wherein the proportion of feldspar mineral powder is 60-100%, and the B-type conditioning agent is formed by fly ash and coal gangue according to any proportion.
Further, composite bacillus is added according to 0.4-0.8 per mill of the mass of the compost mixture in the main fermentation stage, and the composite bacillus mainly comprises bacillus stearothermophilus, bacillus subtilis, acidophilic thermophilic bacillus and bacillus mucilaginosus, wherein the quantity of the bacillus mucilaginosus is not lower than 30%.
Further, in the main fermentation stage, composite fungi consisting of aspergillus agents and streptomyces griseus are added according to the mass of the compost mixture of 0.3-0.6 per mill, and the proportion of the two fungi is (1-1.5): 1, the aspergillus agent is any one or any combination of two of aspergillus niger and aspergillus aculeatus.
Further, after the post fermentation is completed, arbuscular mycorrhizal fungi cultivated and propagated by clover are added into the obtained compost product to serve as an accelerator of a soil conditioner, and the dosage of the arbuscular mycorrhizal fungi is 0.6-1.0 per mill of the mass of the compost product.
Compared with the prior art, the invention has the following technical effects:
(1) The high-quality soil conditioner with rich organic matter content, high mineral element content, water retention and soil moisture preservation is obtained by utilizing the organic matter solid waste such as sewage plant surplus sludge, cow dung and kitchen waste to add the bulking agent, the conditioning agent and the microbial agent, and the high-temperature composting treatment can effectively relieve the problems of low organic matter content, nutrient element loss, soil hardening and the like of the plateau barren soil, and obviously improve the soil fertility.
(2) The sludge of the sewage treatment plant has rich organic matter, nitrogen and phosphorus content, good water absorption and moisture preservation effects, and good water storage and soil moisture preservation effects when the land is used after high-temperature composting treatment; organic/inorganic solid wastes such as crop straws, pine cones, peanut shells, fly ash, coal gangue and the like are mixed in the compost mixture, so that the air permeability of a compost product and the agglomeration of soil particles are enhanced, the physicochemical properties of degraded soil are improved, and the recycling of the solid wastes is well realized.
Detailed Description
The following specific examples further illustrate the invention, and give detailed embodiments and procedures, but the scope of the invention is not limited to the description.
Example 1
(1) Dewatering fresh sewage plantAnd airing the residual sludge and wet cow dung in a greenhouse at 45 ℃ for 24-h, and reducing the water content to about 64%. Thereafter, the following is 45:50:5, mixing sludge, cow dung and corn straw to prepare an organic matter mixture for composting, adding a fermentation product after composting to inoculate microorganisms and adjusting the moisture of the mixture to 62.5%. Adding bulking agent according to 5% of the mass of the mixture in the main fermentation stage, wherein the bulking agent comprises pine cone, peanut shell and expanded perlite, and the mass ratio is 1:1:0.1. after being uniformly mixed, a conditioning agent A is added according to 2.0% of the mass of the mixed material in the main fermentation stage, wherein the conditioning agent A consists of 60% plagioclase and 40% wollastonite, the conditioning agent B consists of 50% fly ash and 50% coal gangue, and the ratio of the conditioning agent A to the conditioning agent B is 6:1. before the main fermentation is started, 0.6 per mill and 0.4 per mill of the total mass of the pile are respectively added with a composite bacillus microbial agent 1 and a composite fungus microbial agent 2, wherein the typical microbial quantity in the composite bacillus is 20 percent of bacillus stearothermophilus, 40 percent of bacillus subtilis and 40 percent of bacillus mucilaginosus, and the proportion of aspergillus type microbial agent to streptomyces griseus in the composite fungus is 1.5:1, the number of Aspergillus niger and Aspergillus aculeatus in the Aspergillus agent is approximately 1:1. the mixed material is subjected to composting fermentation 15 and d in a roller device, the air supply and oxygenation intensity is slightly adjusted according to the existing composting air supply rate and the temperature rising rate of the central part of the pile body, and the composting fermentation temperature is controlled at 52-56 ℃. After the main fermentation is finished, the compost products are paved into 18 cm to 25 cm, after-fermentation treatment is carried out on the compost products for 16 d, and the compost is turned over from time to time, so that the moisture of the materials is reduced to 36+/-1%. Returning a small part of compost drying products to the main fermentation stage, mixing with the waste organic wet materials, and blending the initial water content of the compost drying products to a set range; the rest of the compost drying products are added with arbuscular mycorrhizal fungi cultivated in a clover pot to be used as an accelerator of a soil conditioner, and the dosage of the arbuscular mycorrhizal fungi is 0.8 per mill of the mass of the compost products. The arbuscular mycorrhizal fungi are prepared as follows: strains are inoculatedGlomus mosseaeAndGlomus versiormthe three leaves are cultivated in a pot in advance for propagation, and rice hull powder, zeolite powder and matrix soil are added during the cultivation to prepare the mycorrhizal inoculant containing mycorrhizal fungi spores, external hyphae, infected root segments and rhizosphere soil.
Mixing the prepared soil conditioner with barren soil in mountain area at a ratio of 5%And a pot control test of winter pasture 70 was performed. After the soil conditioner is added, the total nutrient content is improved by 18 percent, the quick-acting nitrogen is improved by 7.6 percent, and the soil volume weight is reduced to 1.42 g/cm 3 The method comprises the steps of carrying out a first treatment on the surface of the The germination index GI of the seeds is increased to 115%, the average plant height of the crops is increased by 11%, and the dry weight of the crops is increased by 15.1%.
Table 1 example 1 comparative experiment table
。
Example 2
The dehydrated excess sludge and wet cow dung of the sewage plant are aired outdoors for 8 h, and the moisture is reduced to about 65%. Thereafter, 50 kg sludge and 40 kg cow dung are mixed, and 10 kg pretreated kitchen waste is added for uniform mixing. The pretreatment mode of the kitchen waste is as follows: kitchen waste with 7.6% of solid content is treated by crushing after oil removal, the kitchen waste is transferred into a saccharification tank, the pH value of slurry is adjusted to 5.8, amylase is added according to the proportion of 1.0 per mill of dry solid matter in the slurry, and the temperature is kept at 55 ℃ for 2.0 h.
After preparing organic matter mixed materials for composting, adding 5-7 kg of fermented products after composting to inoculate microorganisms and adjusting the water content of the mixed materials. Adding a swelling agent consisting of 6.5 kg of pine cone, peanut shell and expanded perlite, wherein the mass ratio of the swelling agent to the peanut shell is 1:0.8:0.25. 2.5 percent kg conditioning agent is added again, wherein the conditioning agent A consists of 75 percent anorthite and 25 percent wollastonite, the conditioning agent B consists of 80 percent fly ash and 20 percent coal gangue, and the ratio of the conditioning agent A to the conditioning agent B is 9:1. before the main fermentation is started, 0.8 per mill and 0.5 per mill of the total mass of the pile are respectively added with a composite bacillus microbial agent 1 and a composite fungus microbial agent 2, wherein the typical microbial quantity in the composite bacillus is 15 percent of bacillus stearothermophilus, 25 percent of bacillus subtilis, 25 percent of bacillus acidophilus and 35 percent of bacillus mucilaginosus, and the proportion of aspergillus type microbial agent to streptomyces griseus in the composite fungus is 1.2:1, the quantity of Aspergillus niger and Aspergillus aculeatus in the Aspergillus agent is 70% and 30% respectively. And composting and fermenting the mixed material at 50-55 ℃ for 12 d. After the main fermentation is completed, the post-fermentation treatment is continued 20 d. The arbuscular mycorrhizal fungi cultivated and propagated by clover are added according to the mass proportion of 1.0 per mill of the compost desiccation product, so as to prepare the barren soil conditioner suitable for mountain areas of the plateau. The remaining non-mentioned conditions were the same as in example 1.
The above soil conditioner was mixed with barren soil of a mountain area of a plateau at a ratio of 5% and a potting control test of winter pasture 70 was performed. After the soil conditioner is added, the total nutrient content is improved by 15.2 percent, the quick-acting nitrogen is improved by 8.3 percent, and the soil volume weight is reduced to 1.31g/cm 3 The method comprises the steps of carrying out a first treatment on the surface of the The germination index GI of the seeds is increased to 102%, the average plant height of the crops is increased by 9.8%, and the dry weight of the crops is increased by 14.6%.
Table 2 example 2 comparative experiment table
。
Claims (10)
1. The technical method for preparing the barren soil conditioner in the mountain area of the plateau is characterized by comprising the following steps:
(1) Mixing the excess sludge of the sewage plant with other organic solid wastes, adjusting the initial water content to 61-65%, sequentially adding a bulking agent, a conditioning agent and a microbial agent, carrying out primary fermentation treatment on the compost for 12-16 d, timely adjusting the air supply oxygenation strength according to the temperature rising rate of the compost, and controlling the primary fermentation temperature of the compost at 48-56 ℃;
(2) And continuing post-fermentation treatment for 15-20 d, controlling the water content of the pile body to be 34-38%, returning part of the compost products to the main fermentation stage to prepare the initial water content of the compost products, adding arbuscular mycorrhizal accelerant into the rest of the compost products, and using the obtained products for improving and conditioning barren soil in mountain areas of the plateau.
2. The technical method for preparing the highland mountain barren soil conditioner, which is characterized in that the other organic matter solid waste in the step (1) is any one or more of cow dung, kitchen waste and crop straw; the mixed material comprises 40-60% of residual sludge, 30-50% of cow dung, 0-10% of kitchen waste and 0-15% of crop straw.
3. The technical method for preparing the barren soil conditioner in the mountain area of the plateau, which is characterized in that the residual sludge is subjected to pretreatment before being mixed with cow dung, specifically, the water content is reduced to 65% by adopting a ventilation airing or quick air drying mode, and the treatment time is controlled to be 10-36 h.
4. The technical method for preparing the barren soil conditioner in the mountain area of the plateau, which is characterized in that pretreatment is needed before the kitchen waste is mixed, the kitchen waste after removing oil stains is crushed and transferred to a saccharification tank at 48-60 ℃, the pH value of slurry is controlled to be 5.5-6.5, amylase is added according to the proportion of 0.8-1.8 per mill of dry solid matters in the slurry, and the temperature is kept for 1.6-2.0 h.
5. The technical method for preparing the highland mountain barren soil conditioner, as claimed in claim 1, wherein the swelling agent is pine cone, peanut shell and expanded perlite, and the proportion is 1: (0.8-1.2): (0.05-0.3), wherein the addition amount of the bulking agent is 4.5-7.5% of the mass of the mixture in the main fermentation stage.
6. The technical method for preparing the barren soil conditioner for the mountain area of the plateau, which is characterized in that the conditioner consists of A, B substances with the mass ratio of (6-9): 1, wherein the addition amount of the modifying agent is 1.5-3.0% of the mass of the mixture in the main fermentation stage.
7. The technical method for preparing the barren soil conditioner for the mountain area of the plateau, which is characterized in that the A-type conditioner is any two of plagioclase, anorthite and wollastonite, wherein the proportion of feldspar ore powder is 60-100%, and the B-type conditioner is formed by fly ash and coal gangue according to any proportion.
8. The technical method for preparing the barren soil conditioner in the mountain area of the plateau, which is characterized in that in the step (1), composite bacillus is added according to 0.4-0.8 per mill of the mass of the compost mixture in the main fermentation stage, wherein the composite bacillus consists of bacillus stearothermophilus, bacillus subtilis, bacillus acidophilus and bacillus mucilaginosus, and the quantity of the bacillus mucilaginosus is not lower than 30 percent.
9. The technical method for preparing the barren soil conditioner in the mountain area of the plateau, according to claim 1, is characterized in that composite fungi are added according to 0.3-0.6 per mill of the mass of compost mixture in the main fermentation stage, wherein the composite fungi are composed of aspergillus bactericides and streptomyces griseus, and the ratio of the aspergillus bactericides to the streptomyces griseus is (1-1.5): 1, the aspergillus agent is any one or any combination of two of aspergillus niger and aspergillus aculeatus.
10. The technical method for preparing the barren soil conditioner in the mountain area of the plateau, which is characterized in that after the post-fermentation in the step (2) is completed, arbuscular mycorrhizal fungi cultivated and propagated by clover are added as an accelerator of the soil conditioner, and the dosage of the arbuscular mycorrhizal fungi is 0.6-1.0 per mill of the mass of a compost product.
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