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Method for preparing charcoal-based fertilizer by taking perishable garbage as raw material and application

A carbon-based fertilizer and garbage charcoal technology, which is applied in the fields of environmental protection and fertilizer production, can solve the problems of difficult disposal of perishable garbage and resource utilization, and achieves the improvement of fertilizer improvement, soil organic matter, porosity and specific surface area. Effect

Pending Publication Date: 2020-05-22
ZHEJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a method for preparing carbon-based fertilizer with perishable garbage as raw material, so as to solve the problem of difficulty in the treatment and resource utilization of perishable garbage in the prior art

Method used

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  • Method for preparing charcoal-based fertilizer by taking perishable garbage as raw material and application
  • Method for preparing charcoal-based fertilizer by taking perishable garbage as raw material and application
  • Method for preparing charcoal-based fertilizer by taking perishable garbage as raw material and application

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specific Embodiment approach 1

[0039] The core of the present invention is to provide a method for preparing carbon-based fertilizer with perishable garbage as raw material, a process flow chart of a specific embodiment is shown in figure 1 , which is referred to as the first embodiment, the method includes the following steps:

[0040]A. Preparation of composite biomass charcoal: collect perishable garbage, air sieve after drying, place it in a biocharization furnace for calcination at a high temperature of 400-600°C, obtain carbonized perishable garbage after carbonization, and collect pyrolysis gas generated during the carbonization process. Natural cooling liquefaction, gas-liquid separation to obtain carbonized derivatives - wood vinegar; perishable garbage charcoal crushed to 2-5mm, spray wood vinegar, the amount of wood vinegar is 0.05-0.35% of the mass of perishable garbage carbonized. Wood vinegar is diluted 100 times with water before use.

[0041] B. Preparation of organic waste aerobic fermenta...

specific Embodiment approach 8

[0063] On the basis of the specific embodiment one, the above-mentioned method for preparing carbon-based fertilizer with perishable garbage as a raw material is further optimally limited to obtain the eighth specific embodiment. The steps of the method are:

[0064] A. Preparation of composite biomass charcoal: collect perishable garbage, air sieve after drying, and place it in a biocharization furnace for calcination at a high temperature of 450-550°C. The calcination process is protected by inert gas. After carbonization, the perishable garbage charcoal is obtained, and the carbonization process is collected. The pyrolysis gas produced in the process is liquefied by natural cooling and separated from gas and liquid to obtain the derivative of carbonized material - wood vinegar; the perishable garbage carbonized material is crushed to 2-5mm, and per ton of perishable garbage carbonized material is sprayed with 150kg of wood vinegar diluted 100 times with water. Obtain composi...

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Abstract

The invention relates to a preparation method of a charcoal-based fertilizer, in particular to a method for preparing a charcoal-based fertilizer by taking perishable garbage as a raw material and application, and belongs to the technical field of environmental protection and fertilizer production. The charcoal-based fertilizer is prepared by mixing composite biomass charcoal and an organic wasteaerobic fermentation fertilizer, the mass percentage content of the composite biomass charcoal is 15-60%, the composite biomass charcoal is prepared by carbonizing perishable garbage as a raw material, and the pH value of the composite biomass charcoal is generally 7.5-9.5. The content of effective nutrients of the charcoal-based fertilizer is greater than or equal to 15wt%, the total C content is35-45wt%, and the pH value is 6.5-8.0, wherein the effective nutrients refer to the contents of N, P2O5 and K2O. According to the preparation method, the perishable garbage is turned into wealth, theperishable garbage, livestock and poultry manure and silkworm excrement are utilized respectively, the charcoal-based fertilizer rich in nutrient is obtained, the crop nutrient requirement and the slow release property of organic fertilizers are both considered, and therefore the yield of crops can be increased, and the problem that in the prior art, treatment and resource utilization of the perishable garbage are difficult is solved.

Description

technical field [0001] The invention relates to a method for preparing a carbon-based fertilizer, in particular to a method and application for preparing a carbon-based fertilizer by using perishable garbage as a raw material, and belongs to the technical field of environmental protection and fertilizer production. Background technique [0002] Garbage disposal is one of the major environmental protection issues being studied and solved by countries all over the world. The reduction, harmless and resourceful treatment of domestic waste is the main development direction of domestic waste disposal in the world. [0003] Perishable waste mainly comes from domestic waste such as agricultural production and kitchen waste, including manure, dross, filter mud, kitchen and vegetable market waste, and a wide variety of organic matter, which also belongs to waste biomass. This kind of waste biomass is perishable and deteriorates in the natural environment, and becomes a source of poll...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/60C05G3/80C05F17/00A01C21/00
CPCC05D9/00C05F17/00C05G3/00A01C21/00Y02W30/40
Inventor 单胜道张敏潘根兴蒋玉根李文健
Owner ZHEJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY
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