CN115010549A - Reduction of acid red soil N 2 O-discharged biomass charcoal material and preparation and use methods thereof - Google Patents

Reduction of acid red soil N 2 O-discharged biomass charcoal material and preparation and use methods thereof Download PDF

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Publication number
CN115010549A
CN115010549A CN202111513862.0A CN202111513862A CN115010549A CN 115010549 A CN115010549 A CN 115010549A CN 202111513862 A CN202111513862 A CN 202111513862A CN 115010549 A CN115010549 A CN 115010549A
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biomass charcoal
acid red
red soil
charcoal material
preparation
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秦文弟
夏金亮
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Jiujiang University
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Jiujiang University
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    • 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
    • C05G3/80—Soil conditioners
    • 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)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Biotechnology (AREA)
  • Biochemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Microbiology (AREA)
  • Molecular Biology (AREA)
  • Tropical Medicine & Parasitology (AREA)
  • Soil Sciences (AREA)
  • Pest Control & Pesticides (AREA)
  • Inorganic Chemistry (AREA)
  • Processing Of Solid Wastes (AREA)
  • Fertilizers (AREA)

Abstract

The invention discloses a method for reducing N in acid red soil 2 A biomass charcoal material discharged by O and a preparation and use method thereof belong to the field of environmental protection. The method comprises the following steps: and (2) uniformly stirring and mixing 30-60 parts of biomass charcoal obtained by pyrolyzing and carbonizing agricultural and forestry wastes and kitchen garbage under an anaerobic or low-oxygen condition, 20-40 parts of solid byproducts obtained by anaerobic fermentation of livestock and poultry manure and sludge, and 20-40 parts of fertilizer obtained by fermenting wood processing residues and edible fungus residue compost to obtain the biomass charcoal material. The biomass charcoal material is applied to the acid red soil, so that the structure, the texture, the organic matter, the fertility condition, the pH value and the like of the acid red soil can be improved, the abundance of functional genes nosZ in the denitrification process of the acid red soil is increased, and the microbial community structure of the soil is changed, so that the N in the acid red soil is enabled 2 The O emission is greatly reduced. Most of raw materials for preparing the biomass charcoal material are organic wasteThe waste is convenient to obtain materials, the preparation cost is low, and the environment and economic benefits are good.

Description

Reduction of acid red soil N 2 O-discharged biomass charcoal material and preparation and use methods thereof
Technical Field
The invention relates to the field of environmental protection, in particular to a method for reducing N in acid red soil 2 O-discharged biomass charcoal material and preparation and use methods thereof.
Background
Nitrous oxide (N) 2 O) is a greenhouse gas, and research on emission reduction countermeasures is gradually emphasized by the academic community. The soil being N 2 One of the important sources of O emission, wherein farmland soil accounts for more than 60%. The red soil is typical soil in tropical and subtropical regions of China, spans 16 provinces and regions, accounts for about 23 percent of the total area of the land of China, accounts for 28 percent of the cultivated land area, and is the soilNational important agriculture and forestry soil resources. Due to unreasonable fertilization, operation and management, acid rain influence, prominent red soil acidification and other problems, low fertility level and high viscosity, the fertilizer becomes high in N 2 And O emission coefficient of the soil ecosystem. Therefore, research and development of a method for reducing N in acid red soil 2 The material and practical use method of O emission are not slow.
The biomass charcoal is a high-stability carbide produced by high-temperature thermal cracking of biomass materials under the condition of partial or complete hypoxia, and has great attention in recent years due to good anatomical structure, good physicochemical properties, wide material sources and wide industrial development prospects. In application, the biomass charcoal generally needs to be modified by a chemical reagent to prepare a biomass charcoal material, but the modification greatly increases the cost for preparing the biomass charcoal material, the treatment of waste water and waste materials generated in the modification process also increases the cost and the production difficulty, and the improper treatment can bring secondary pollution to the environment.
Disclosure of Invention
In order to solve the problems, the invention aims to produce the red soil with reduced acid N by using organic wastes without modifying chemical reagents 2 And O, discharging biomass charcoal material.
In order to achieve the above object, the present invention provides the following technical solutions:
reduction of acid red soil N 2 The preparation method of the biomass charcoal material discharged by O comprises the following steps:
1) drying and crushing the agriculture and forestry wastes and the kitchen wastes, and pyrolyzing and carbonizing under an anaerobic or low-oxygen condition to obtain biomass charcoal for later use;
2) mixing the livestock and poultry manure and the sludge, uniformly stirring, adjusting the mixture to the initial total solid concentration of 6-12% by using clear water, and then carrying out anaerobic fermentation; drying and crushing the solid by-product obtained by anaerobic fermentation under natural conditions into 1-5mm crushed materials for later use;
3) pulverizing the wood processing residues and the edible fungus residues into crushed materials with the particle size of 0.5-2mm, adding 8-15 wt% of bran, uniformly mixing, adjusting the initial water content to 60% -70% by using clear water, and then performing composting fermentation; sieving the fertilizer obtained by fermentation with a sieve of 2mm for later use;
4) mixing the biomass charcoal prepared in the steps 1), 2) and 3), the anaerobic fermentation solid byproduct and the fertilizer in parts by weight, and stirring and mixing uniformly to obtain a biomass charcoal material for later use;
preferably, in the step 1), the agricultural and forestry wastes and the kitchen wastes are dried at the temperature of 80-100 ℃ and are crushed into 0.5-2mm crushed materials, the pyrolysis carbonization temperature is 400-600 ℃, and the time is 2-6 h.
Preferably, in the step 2), the livestock and poultry manure and the sludge are mixed according to the weight ratio of 1-5: 1.
Preferably, in the step 2), the anaerobic fermentation is normal-temperature anaerobic fermentation, and the fermentation time is 25-60 days.
Preferably, in the step 3), the compost fermentation temperature is 50-70 ℃, and the fermentation time is 45-60 days.
Reduction of acid red soil N 2 O-emitting biochar material prepared from the above-mentioned acidic red soil N 2 The preparation method of the biomass charcoal material discharged by O.
Preferably, in the step 4), the biomass charcoal material is prepared by uniformly stirring and mixing 30-60 parts of biomass charcoal, 20-40 parts of anaerobic fermentation solid byproducts and 20-40 parts of fertilizers.
Reduction of acid red soil N 2 The use method of the biomass charcoal material discharged by O comprises the following steps: the biomass charcoal material is applied to the acid red soil, then the soil is turned over, and the biomass charcoal material and the acid red soil are uniformly mixed.
Preferably, the application amount of the biomass charcoal material is 500-2000 kg per mu.
Compared with the prior art, the invention has the following advantages:
1) the biomass charcoal material provided by the invention is prepared from organic wastes, is convenient to obtain materials, is low in preparation cost, and has good environmental and economic benefits.
2) The biomass charcoal is prepared from organic wastes without chemical reagent modification, so that the cost for preparing the biomass charcoal material is saved, the treatment cost and the production difficulty of waste water and waste materials generated in the modification process are reduced, secondary pollution is avoided, and the environment is protected; meanwhile, according to the characteristics of different raw materials, different processes are carried out, so that the biomass charcoal material prepared by mixing the processed raw materials according to a certain proportion is superior in structure and performance.
3) The biomass charcoal material prepared by the invention can improve the structure, texture, organic matter, fertility condition, pH value and the like of the acid red soil, increase the abundance of functional genes nosZ in the denitrification process of the acid red soil and change the structure of soil microbial communities, thereby reducing the N content of the acid red soil 2 And (4) discharging O.
Detailed Description
The present invention will be described in detail with reference to examples, but the present invention is not limited to the examples.
Example 1
Reduction of acid red soil N 2 The biomass charcoal material with O emission is prepared by the following method:
1) drying rice straws and kitchen garbage at 80 ℃, crushing the rice straws and the kitchen garbage into 1mm crushed materials, and pyrolyzing and carbonizing the crushed materials for 6 hours at 400 ℃ under an anaerobic condition to obtain biomass charcoal for later use;
2) mixing pig manure and sludge according to the weight ratio of 1:1, uniformly stirring, adjusting the mixture to the initial total solid concentration of 12% by using clear water, and then carrying out anaerobic fermentation at normal temperature for 25 days; airing and crushing the solid by-product obtained by anaerobic fermentation under natural conditions into 2mm crushed materials for later use;
3) crushing the fir processing residues and the edible fungus residues into crushed materials with the particle size of 1mm, adding 8% of bran by weight, uniformly mixing, adjusting the initial water content to 60% by using clear water, and then composting and fermenting for 60 days at 50 ℃; sieving the fertilizer obtained by fermentation with a 2mm sieve for later use;
4) and (3) stirring and uniformly mixing 50 parts of biomass charcoal, 30 parts of anaerobic fermentation solid by-product and 20 parts of fertilizer prepared in the steps 1), 2) and 3) to obtain the biomass charcoal material.
Example 2
Reduction of acid red soil N 2 The biomass charcoal material discharged by O is prepared by the following method:
1) drying dead branches and fallen leaves of eucalyptus and kitchen garbage at 100 ℃, crushing the dried dead branches and fallen leaves of eucalyptus and the kitchen garbage into 2mm crushed materials, and pyrolyzing and carbonizing the crushed materials for 2 hours at 600 ℃ under an anaerobic condition to obtain biomass charcoal for later use;
2) mixing cow dung excrement and sludge according to the weight ratio of 3:1, uniformly stirring, adjusting the mixture to the initial total solid concentration of 6% by using clear water, and then performing anaerobic fermentation at normal temperature for 60 days; airing and crushing the solid by-product obtained by anaerobic fermentation under natural conditions into 1mm crushed materials for later use;
3) pulverizing lignum Cinnamomi Camphorae processing residues and domestic fungus residues into 0.5mm, adding 12 wt% of testa Tritici, mixing, adjusting initial water content to 70% with clear water, and performing composting fermentation at 60 deg.C for 50 days; sieving the fertilizer obtained by fermentation with a 2mm sieve for later use;
4) and (3) stirring and mixing 60 parts of biomass charcoal, 20 parts of anaerobic fermentation solid by-products and 20 parts of fertilizers which are prepared in the steps 1), 2) and 3) uniformly to prepare the biomass charcoal material.
Example 3
Reduction of acid red soil N 2 The biomass charcoal material discharged by O is prepared by the following method:
1) drying peanut shells and kitchen garbage at 90 ℃, crushing the peanut shells and the kitchen garbage into 0.5mm crushed materials, and pyrolyzing and carbonizing the crushed materials for 3 hours at 500 ℃ under an anaerobic condition to obtain biomass charcoal for later use;
2) mixing the mixed excrement of pig manure and cow manure and sludge according to the weight ratio of 5:1, uniformly stirring, adjusting the initial water content of the mixture to 10% by using clear water, and then performing anaerobic fermentation at normal temperature for 45 days; airing and crushing the solid by-product obtained by anaerobic fermentation under natural conditions into 5mm crushed materials for later use;
3) pulverizing the eucalyptus processing residues and the edible fungus residues into crushed materials with the particle size of 2mm, adding 15 wt% of bran, uniformly mixing, adjusting the initial water content to 65% by using clear water, and performing composting fermentation at 70 ℃ for 45 days; sieving the fertilizer obtained by fermentation with a sieve of 2mm for later use;
4) and (3) stirring and mixing 30 parts of biomass charcoal, 40 parts of anaerobic fermentation solid by-product and 30 parts of fertilizer which are prepared in the steps 1), 2) and 3) uniformly to prepare the biomass charcoal material.
Use example 1
The biochar material prepared in example 1 is applied to the acid red soil according to 1000kg per mu, then soil turning is carried out, and the biochar material and the acid red soil are uniformly mixed.
Use example 2
The biochar material prepared in example 2 is applied to the acid red soil according to 500kg per mu, then soil turning is carried out, and the biochar material and the acid red soil are uniformly mixed.
Use example 3
The biochar material prepared in example 3 is applied to the acid red soil according to 2000kg per mu, then soil turning is carried out, and the biochar material and the acid red soil are uniformly mixed.
And (4) analyzing results: compared with the acid red soil without applying the biomass charcoal material, the biomass charcoal material prepared by the invention can improve the structure, texture, organic matter, fertility condition, pH value and the like of the acid red soil, increase the abundance of functional genes nosZ in the denitrification process of the acid red soil, change the structure of soil microbial communities and reduce N in the acid red soil 2 And (4) discharging O.
From the above examples, it can be seen that the present invention provides a method for reducing N in acidic red soil 2 The biomass charcoal material discharged by the O and the preparation and use methods thereof utilize organic wastes to prepare the biomass charcoal material without carrying out chemical reagent modification on the biomass charcoal, save the cost for preparing the biomass charcoal material, also reduce the treatment cost and the production difficulty of waste water and waste materials generated in the modification process, do not bring secondary pollution, and protect the environment;
the foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (9)

1. Reduction of acid red soil N 2 The preparation method of the biomass charcoal material with O emission is characterized by comprising the following steps: the method comprises the following steps:
1) drying and crushing the agriculture and forestry wastes and the kitchen wastes, and pyrolyzing and carbonizing under an anaerobic or low-oxygen condition to obtain biomass charcoal for later use;
2) mixing the livestock and poultry manure and the sludge, uniformly stirring, adjusting the mixture to the initial total solid concentration of 6-12% by using clear water, and then carrying out anaerobic fermentation; drying and crushing the solid by-product obtained by anaerobic fermentation under natural conditions into 1-5mm crushed materials for later use;
3) pulverizing the wood processing residues and the edible fungus residues into crushed materials with the particle size of 0.5-2mm, adding 8-15 wt% of bran, uniformly mixing, adjusting the initial water content to 60% -70% by using clear water, and then performing composting fermentation; sieving the fertilizer obtained by fermentation with a 2mm sieve for later use;
4) the biomass charcoal, the anaerobic fermentation solid by-product and the fertilizer prepared in the steps 1), 2) and 3) are mixed according to the weight parts, and are stirred and mixed uniformly to obtain the biomass charcoal material for later use.
2. The method of claim 1 for reducing N in acid red soil 2 The preparation method of the biomass charcoal material with O emission is characterized by comprising the following steps: in the step 1), the agricultural and forestry wastes and the kitchen wastes are dried at the temperature of 80-100 ℃ and are crushed into 0.5-2mm crushed materials, and the pyrolysis carbonization temperature is 400-600 ℃.
3. The method for reducing N content in acidic red soil according to claim 1 2 The preparation method of the biomass charcoal material with O emission is characterized by comprising the following steps: in the step 2), the livestock and poultry manure and the sludge are mixed according to the weight ratio of 1-5: 1.
4. The method of claim 1 for reducing N in acid red soil 2 The preparation method of the biomass charcoal material with O emission is characterized by comprising the following steps: the anaerobic fermentation in the step 2) is normal-temperature anaerobic fermentation, and the fermentation time is 25-60 days.
5. The method of claim 1 for reducing N in acid red soil 2 The preparation method of the biomass charcoal material with O emission is characterized by comprising the following steps: in the step 3), the compost fermentation temperature is 50-70 ℃, and the fermentation time is 45-60 days.
6. Reduction of acid red soil N 2 O-emitting biomass charcoal material, characterized in that the N in the acid red soil is reduced by any one of claims 1 to 5 2 The preparation method of the biomass charcoal material with O emission.
7. The method of claim 6 for reducing N in acid red soil 2 The biomass charcoal material discharged by the O-shaped reactor is characterized by being prepared by uniformly stirring and mixing 30-60 parts of biomass charcoal, 20-40 parts of anaerobic fermentation solid byproducts and 20-40 parts of fertilizers.
8. Reduction of acid red soil N 2 The use method of the biomass charcoal material discharged by O is characterized by comprising the following steps: the biomass charcoal material is applied to the acid red soil, then the soil is turned, and the biomass charcoal material and the acid red soil are uniformly mixed.
9. The method for reducing N in acid red soil according to claim 8 2 The application method of the biomass charcoal material discharged by O is characterized in that the application amount of the biomass charcoal material is 500-2000 kg per mu.
CN202111513862.0A 2021-12-13 2021-12-13 Reduction of acid red soil N 2 O-discharged biomass charcoal material and preparation and use methods thereof Pending CN115010549A (en)

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KR20100080574A (en) * 2009-01-01 2010-07-09 서희동 Bulking agent for organic waste composting
CN102358714A (en) * 2011-08-22 2012-02-22 南京农业大学 Multi-functional biomass carbon fertilizer produced by using biomass carbon from straws and kitchen waste
CN102643120A (en) * 2011-02-17 2012-08-22 潍坊市云涛有机肥料有限公司 Preparation method of organic fertilizer
CN103102189A (en) * 2013-01-25 2013-05-15 福建省星源农牧科技股份有限公司 Organic fertilizer formula making use of factory sludge and seafood mushroom dregs and production process of organic fertilizer formula
CN103508762A (en) * 2013-10-22 2014-01-15 谢明英 Method for fermenting organic fertilizer through sludge
CN105000981A (en) * 2015-07-13 2015-10-28 阜阳市音乐桃种植专业合作社 Carbonized particle fermented organic fertilizer and preparation method therefor
CN106588393A (en) * 2016-12-30 2017-04-26 江苏品品鲜生物科技有限公司 Culture medium of Pleurotus eryngii and preparation method thereof
CN110256161A (en) * 2019-07-22 2019-09-20 南京林业大学 A kind of timbered soil ecological restoration materials and preparation method thereof
CN111205121A (en) * 2020-01-13 2020-05-29 内蒙古伊赛牛肉有限公司 Microbial treatment method for slaughter house sludge and excrement
CN111362766A (en) * 2020-03-20 2020-07-03 崔孟飞 Organic conditioner for saline-alkali soil improvement
US20200354284A1 (en) * 2019-05-06 2020-11-12 Jingqi Yang Preparing organic fertilizer from agricultural wastes and livestock manure

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20100080574A (en) * 2009-01-01 2010-07-09 서희동 Bulking agent for organic waste composting
CN102643120A (en) * 2011-02-17 2012-08-22 潍坊市云涛有机肥料有限公司 Preparation method of organic fertilizer
CN102358714A (en) * 2011-08-22 2012-02-22 南京农业大学 Multi-functional biomass carbon fertilizer produced by using biomass carbon from straws and kitchen waste
CN103102189A (en) * 2013-01-25 2013-05-15 福建省星源农牧科技股份有限公司 Organic fertilizer formula making use of factory sludge and seafood mushroom dregs and production process of organic fertilizer formula
CN103508762A (en) * 2013-10-22 2014-01-15 谢明英 Method for fermenting organic fertilizer through sludge
CN105000981A (en) * 2015-07-13 2015-10-28 阜阳市音乐桃种植专业合作社 Carbonized particle fermented organic fertilizer and preparation method therefor
CN106588393A (en) * 2016-12-30 2017-04-26 江苏品品鲜生物科技有限公司 Culture medium of Pleurotus eryngii and preparation method thereof
US20200354284A1 (en) * 2019-05-06 2020-11-12 Jingqi Yang Preparing organic fertilizer from agricultural wastes and livestock manure
CN110256161A (en) * 2019-07-22 2019-09-20 南京林业大学 A kind of timbered soil ecological restoration materials and preparation method thereof
CN111205121A (en) * 2020-01-13 2020-05-29 内蒙古伊赛牛肉有限公司 Microbial treatment method for slaughter house sludge and excrement
CN111362766A (en) * 2020-03-20 2020-07-03 崔孟飞 Organic conditioner for saline-alkali soil improvement

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