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Novel process for preparing novel liquid organic fertilizer from waste biomass

A technology for discarding biomass and liquid organic fertilizers, applied in liquid fertilizers, organic fertilizers, animal carcass fertilizers, etc., can solve the problems of incorrect treatment, untimely, environmental pollution, etc., and achieve complete nutrient, high content and high fertilizer efficiency. Effect

Inactive Publication Date: 2020-12-29
RES CENT FOR ECO ENVIRONMENTAL SCI THE CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] On the other hand, my country produces a large amount of waste biomass such as livestock and poultry manure, kitchen waste, poultry slaughtering and processing waste, etc., and its untimely or incorrect treatment has caused serious environmental pollution.

Method used

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  • Novel process for preparing novel liquid organic fertilizer from waste biomass
  • Novel process for preparing novel liquid organic fertilizer from waste biomass

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] 1. Preparation of new liquid organic fertilizer

[0023] The waste biomass is kitchen waste (collected from kitchen waste collection bins in Weigong Village Community, Beijing). Crush fresh kitchen waste (with a water content of about 89%) to less than 20mm and set aside.

[0024] 1) Mix the pulverized kitchen waste and potassium carbonate at a ratio of 1:0.5 and put them into a hydrothermal reactor;

[0025] 2) Heat the reactor to 190°C at a heating rate of 5°C / min under stirring conditions and keep it for 80 minutes; after the hydrothermal treatment is completed, the reactor is cooled by an electric fan and internal circulating cooling water, and after cooling, the solid-liquid separation removes a small amount of The solid product is the novel liquid organic fertilizer.

[0026] 2. Determination of fertilizer efficiency of liquid organic fertilizer

[0027] The comprehensive performance evaluation indicators of liquid organic fertilizers include total nutrient con...

Embodiment 2

[0031] In the preparation of the new liquid organic fertilizer, the waste biomass was respectively used duck slaughter waste (offal, fur, etc.).

[0032] 1. Preparation of Liquid Organic Fertilizer

[0033] 1) Put the slaughter waste and potassium hydroxide into a hydrothermal reaction kettle in a weight ratio of 1:1.

[0034] 2) Heat the reactor to 160°C at a heating rate of 5°C / min under stirring conditions and keep it for 120 minutes; after the hydrothermal treatment is completed, the reactor is cooled by an electric fan and internal circulating cooling water, and after cooling, the solid-liquid separation removes a small amount of The solid product is the novel liquid organic fertilizer.

[0035] 2. The method for measuring the fertilizer efficiency of liquid organic fertilizer is the same as in Example 1.

[0036] Table 2. Product indicators of new liquid organic fertilizer prepared from duck slaughter waste

[0037] project index Organic matter conten...

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Abstract

Aiming at the current situation that the soil fertility is reduced and the fertilizer utilization rate is low in China, the invention establishes a new process for preparing a novel liquid organic fertilizer by taking waste biomass as a raw material in combination with the advantage of rich waste biomass resources in China. According to the process, the waste biomass is subjected to complete hydrothermal liquefaction under a specific alkaline condition, and the liquefied biomass is used as a novel liquid organic fertilizer, or the liquefied biomass is compounded with a commercial fertilizer toobtain a novel liquid organic fertilizer. The waste biomass is used as the raw material, so that the prepared novel organic fertilizer is low in price; and in addition, the liquid organic fertilizeralso has the advantages of high fertilizer efficiency, complete nutrients, soil remediation function and the like.

Description

technical field [0001] The invention relates to the treatment and disposal of waste biomass, which belongs to the new technology of resource utilization of solid waste in the field of environmental protection and resource comprehensive utilization, and is especially suitable for high-protein waste such as livestock and poultry manure, kitchen waste, animal slaughter waste, etc. High value-added resource utilization of biomass. Background technique [0002] Liquid fertilizers have attracted more and more attention because of their advantages such as adjustable nutrient balance, flexible and controllable formula, and convenience for precise fertilization and mechanical operation. As a big agricultural country, my country's fertilizer consumption ranks first in the world, but in the large amount of fertilizer consumption, the proportion of liquid fertilizer is very small. Realizing the precise management and efficient utilization of fertilizer nutrients has become an urgent pr...

Claims

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Application Information

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IPC IPC(8): C05G3/80C05G5/20
CPCC05D1/00C05G3/80C05G5/20C05F9/00C05F1/005
Inventor 刘振刚李东
Owner RES CENT FOR ECO ENVIRONMENTAL SCI THE CHINESE ACAD OF SCI
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