Amino acid liquid organic fertilizer prepared from kitchen waste in full-quantitative mode and preparation method of amino acid liquid organic fertilizer

Abstract

The invention relates to an amino acid liquid organic fertilizer prepared from kitchen waste in a full-quantitative manner. The preparation method comprises the following steps: 1) crushing sorted kitchen waste, and mixing with water according to a weight ratio of 1:1-1:5; 2) stirring and mixing an anti-acidification complex microbial inoculant, an Aspergillus oryzae 1 enzyme source and an Aspergillus oryzae 2 enzyme source according to a mass ratio of 1:1:1-5:3:1 to obtain a bacterial enzyme composite preparation; (3) inoculating the crushed kitchen wastes with 5-20ml / kg of a bacterium enzyme compound preparation, ventilating and supplying oxygen, culturing at the constant temperature of 35-45 DEG C for 24-168 hours at the stirring speed of 100-200r / min to obtain high-concentration fermentation liquor; and (4) adding nutrient elements into the fermentation liquor, and blending into liquid organic fertilizers with different functions. The invention also discloses a method for preparing the amino acid liquid organic fertilizer. According to the functional difference and the synergistic effect mechanism of different microbial agents, staged application is achieved, stepped and rapid fertilization of complex components of the kitchen waste is achieved, and zero pollution and zero emission are achieved in the whole process. The method is a green and sustainable kitchen waste full-quantification on-site treatment technology.

Description

technical field [0001] The invention belongs to the field of organic waste resource treatment, and in particular relates to an amino acid liquid organic fertilizer prepared quantitatively from kitchen waste. [0002] The invention also relates to a method for preparing the amino acid liquid organic fertilizer. Background technique [0003] With the implementation of my country's garbage classification policy, the output of kitchen waste has increased sharply, and the demand for resource treatment is urgent. At present, the resource utilization of kitchen waste includes fertilizer, energy, feed, etc., all of which have the problems of low resource efficiency and heavy secondary pollution. Among them, it is of great significance to convert food waste into liquid organic fertilizer with high added value by adding functional microorganisms. [0004] The existing technology mainly uses the high-concentration organic waste liquid after the solid-liquid separation of kitchen wast...

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Problems solved by technology

[0004] The existing technology mainly uses the high-concentration organic waste liquid after the solid-liquid separation of kitchen waste and the removal of grease as raw material, inoculates functional microorganisms, and prepares liquid bacterial fertilizer by aerobic fermentation. However, this technology increases the complexity of the process. After solid-liquid separation The solid phase substances still need to be further recycled, and the fermentation process of high-concentration organic waste liquid is likely to cause system acidification and poor stability

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