WO2016192403A1 - Procédé de préparation d'engrais carboné à base de paille de riz afin de réduire les émissions de gaz à effet de serre des rizières - Google Patents

Procédé de préparation d'engrais carboné à base de paille de riz afin de réduire les émissions de gaz à effet de serre des rizières Download PDF

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Publication number
WO2016192403A1
WO2016192403A1 PCT/CN2016/072711 CN2016072711W WO2016192403A1 WO 2016192403 A1 WO2016192403 A1 WO 2016192403A1 CN 2016072711 W CN2016072711 W CN 2016072711W WO 2016192403 A1 WO2016192403 A1 WO 2016192403A1
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WO
WIPO (PCT)
Prior art keywords
rice straw
based fertilizer
rice
straw carbon
carbon
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Application number
PCT/CN2016/072711
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English (en)
Chinese (zh)
Inventor
袁小利
单胜道
李松
叶正钱
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浙江科技学院
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Application filed by 浙江科技学院 filed Critical 浙江科技学院
Publication of WO2016192403A1 publication Critical patent/WO2016192403A1/fr

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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
    • C05F11/00—Other organic fertilisers
    • 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

Definitions

  • the invention belongs to the technical field of biochar preparation, and particularly relates to a preparation method of rice straw carbon-based fertilizer for reducing greenhouse gas emissions in rice fields.
  • One of the objects of the present invention is to provide a rice straw carbon-based fertilizer which improves soil aeration and reduces CH 4 and N 2 O emissions, and a preparation method thereof, in view of the current problem of excessive greenhouse gas emissions.
  • the technical solution of the present invention is:
  • One aspect of the invention relates to a method for preparing a rice straw carbon-based fertilizer, which comprises the following steps:
  • the material obtained in the step (3) is ground and sieved to obtain a rice straw carbon-based fertilizer.
  • the biomass feedstock used is rice straw with or without the addition of other enzymes and/or microorganisms that promote fermentation.
  • the mixing ratio of the rice straw biomass raw material to water is 1:6 to 1:10.
  • the hydrothermal carbonization reaction pressure is from 1 MPa to 3 MPa.
  • step B the anaerobic condition is the isolation of air.
  • Another aspect of the invention relates to a rice straw carbon-based fertilizer prepared by the above development method.
  • the rice straw carbon-based fertilizer has a specific surface area of between 190 and 210 m 2 /g.
  • the rice straw carbon-based fertilizer has a pH of between 8 and 10.
  • the invention also relates to the use of the above-mentioned rice straw carbon-based fertilizer for reducing greenhouse gas emissions in rice fields.
  • the equipment used in the preparation of the rice straw carbon-based fertilizer has simple operation and low production cost, and is favorable for large-scale application of the rice straw carbon-based fertilizer.
  • the rice straw carbon-based fertilizer prepared by the invention has high specific surface area and is suitable for soil, and is beneficial for reducing greenhouse gas emissions in rice fields, thereby mitigating global climate change.
  • the material obtained in the step (3) is ground and passed through a 20 mesh sieve to obtain a rice straw carbon-based fertilizer A.
  • the yield of the rice straw carbon-based fertilizer for reducing greenhouse gas emissions obtained in this example was 69.5%, the pH value was 8.41, the specific surface area was 191.3 m 2 /g, and the total pore volume was 0.092 cm 3 /g.
  • F is the greenhouse gas emission flux, mg / (m 2 ⁇ h); ⁇ is the gas density under standard conditions, g / L; A is the bottom area of the box, m 2 ; h is the effective height of the box, m V is the effective space volume in the box, m 3 ; T is the gas temperature in the tank, ° C; ⁇ m is the mass change of the gas in the tank at ⁇ t time, mg; ⁇ c is the change amount of the gas in the tank at ⁇ t time, mg /L.
  • the cumulative emission of CH 4 was 7.68 mg/m 2 and the cumulative emission of N 2 O was 16.3 mg/m 2 , compared with crops that did not apply the rice straw-based fertilizer.
  • the cumulative emissions of N 2 O decreased by 5.3 mg / m 2 , indicating that the input of rice straw carbon fertilizer can reduce the emission flux of greenhouse gases CH 4 and N 2 O in rice fields.
  • the material obtained in the step (3) is ground and passed through a 20 mesh sieve to obtain a rice straw carbon-based fertilizer B.
  • the yield of the rice straw carbon-based fertilizer for reducing greenhouse gas emissions obtained in this example was 67.4%, the pH was 8.53, the specific surface area was 194.6 m 2 /g, and the total pore volume was 0.094 cm 3 /g.
  • the material obtained in the step (3) is ground and passed through a 20 mesh sieve to obtain a rice straw carbon-based fertilizer C.
  • the yield of the rice straw carbon-based fertilizer for reducing greenhouse gas emissions obtained in this example was 62.7%, the pH value was 8.67, the specific surface area was 198.3 m 2 /g, and the total pore volume was 0.097 cm 3 /g.
  • the material obtained in the step (3) is ground and passed through a 20 mesh sieve to obtain a rice straw carbon-based fertilizer D.
  • the yield of the rice straw carbon-based fertilizer for reducing greenhouse gas emissions obtained in this example was 59.6%, the pH was 8.66, the specific surface area was 203.3 m 2 /g, and the total pore volume was 0.100 cm 3 /g.
  • the material obtained in the step (3) is ground and passed through a 20 mesh sieve to obtain a rice straw carbon-based fertilizer E.
  • the yield of the rice straw carbon-based fertilizer for reducing greenhouse gas emissions obtained in this example was 55.4%, the pH was 8.78, the specific surface area was 208.1 m 2 /g, and the total pore volume was 0.100 cm 3 /g.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Fertilizers (AREA)

Abstract

La présente invention se rapporte au domaine technique de la préparation de charbon de biomasse ; en particulier, elle a trait à un procédé de préparation d'un engrais carboné à base de paille de riz permettant de réduire les émissions de gaz à effet de serre des rizières. Au moyen de la présente invention, un engrais carboné à base de paille de riz destiné à réduire les émission de gaz à effet de serre est préparé par carbonisation et assimilation de CO2, par l'intermédiaire d'un procédé hydrothermique.
PCT/CN2016/072711 2015-06-04 2016-01-29 Procédé de préparation d'engrais carboné à base de paille de riz afin de réduire les émissions de gaz à effet de serre des rizières WO2016192403A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201510305494.9 2015-06-04
CN201510305494.9A CN105315098A (zh) 2015-06-04 2015-06-04 一种减少稻田温室气体排放的稻秸炭基肥料制备方法

Publications (1)

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WO2016192403A1 true WO2016192403A1 (fr) 2016-12-08

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PCT/CN2016/072711 WO2016192403A1 (fr) 2015-06-04 2016-01-29 Procédé de préparation d'engrais carboné à base de paille de riz afin de réduire les émissions de gaz à effet de serre des rizières

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CN (1) CN105315098A (fr)
WO (1) WO2016192403A1 (fr)

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CN112629949A (zh) * 2020-11-06 2021-04-09 中国计量大学 一种低甲烷水稻甲烷吸收装置
CN114558417A (zh) * 2022-02-18 2022-05-31 湖南农业大学 一种稻田温室气体的减排方法
CN115010524A (zh) * 2022-05-25 2022-09-06 上海勘测设计研究院有限公司 一种减少污泥堆肥过程温室气体排放的改性生物炭及其制备方法和应用方法
CN117700276A (zh) * 2023-12-15 2024-03-15 山东省科学院能源研究所 一种养分释放匹配菠菜发育需求的水热炭基颗粒肥及制备方法与应用

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CN105900984A (zh) * 2016-04-26 2016-08-31 华南理工大学 一种生物质水热碳化液相制备农药、固相制备有机肥的方法
CN106588313A (zh) * 2016-12-03 2017-04-26 青岛漾花湖农业科技有限公司 一种用农业废弃生物质催化制备的功能性液体肥
CN106673896A (zh) * 2016-12-12 2017-05-17 浙江科技学院 一种荷叶炭基肥料及其制备方法
CN106748452A (zh) * 2016-12-12 2017-05-31 浙江科技学院 一种荷杆生物炭基肥料及其制备方法
CN106865543B (zh) * 2017-01-25 2019-03-08 北京凯风泰智能技术研究有限公司 一种棉花秸秆无氧蒸气炭化方法
CN107459037A (zh) * 2017-08-02 2017-12-12 四川大学 一种低温制备碳材料联产肥料的方法
CN110156505A (zh) * 2019-05-10 2019-08-23 江苏农牧科技职业学院 一种羊粪发酵肥及其制备方法和应用
CN110591718A (zh) * 2019-08-27 2019-12-20 江苏省农业科学院 微生物陈化改良水热炭及其制备方法和应用
CN111040768B (zh) * 2020-01-02 2021-07-16 江苏省农业科学院 一种膨润土改性水热炭材料的制备及其在面源污染减排的应用
CN112934951A (zh) * 2021-03-31 2021-06-11 中国林业科学研究院林业新技术研究所 一种生物炭改良湿地土壤碳减排的方法

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112629949A (zh) * 2020-11-06 2021-04-09 中国计量大学 一种低甲烷水稻甲烷吸收装置
CN114558417A (zh) * 2022-02-18 2022-05-31 湖南农业大学 一种稻田温室气体的减排方法
CN114558417B (zh) * 2022-02-18 2024-06-07 湖南农业大学 一种稻田温室气体的减排方法
CN115010524A (zh) * 2022-05-25 2022-09-06 上海勘测设计研究院有限公司 一种减少污泥堆肥过程温室气体排放的改性生物炭及其制备方法和应用方法
CN115010524B (zh) * 2022-05-25 2024-01-26 上海勘测设计研究院有限公司 一种减少污泥堆肥过程温室气体排放的改性生物炭及其制备方法和应用方法
CN117700276A (zh) * 2023-12-15 2024-03-15 山东省科学院能源研究所 一种养分释放匹配菠菜发育需求的水热炭基颗粒肥及制备方法与应用

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