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Method for preparing nitrogen-conserving active organic fertilizer from food factory waste liquid and animal dung

A technology for livestock manure and food factories, which is applied in the preparation of organic fertilizers, organic fertilizers, and biological organic part treatment, etc., can solve the problems of low humic acid content, loss of nitrogen elements, flying flies, etc. High, less nitrogen loss, improving the effect of use

Active Publication Date: 2014-11-05
广东巴斯德环境科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it also has the problems of strong ammonia gas in the production site, flying flies, and the overall loss of nitrogen in fertilizers, and the content of humic acid is relatively low.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] a. After mixing the raw materials, use tap water to adjust the moisture to 50%, use urea and / or rice bran with an organic matter content greater than 70% to adjust the carbon-nitrogen ratio to 15:1, and pile up the material for fermentation;

[0031] b. Cover the surface of the stockpile with 0.5Kg / cubic stockpile and cover a layer of nitrogen-preserving material for a fermentation. During the first fermentation, after turning over the stockpile each time, replenish water with water replenishing liquid until the total moisture content of the stockpile is 45% and Turn over the pile, after each turn over the pile, cover the pile with a layer of nitrogen-preserving material at a rate of 0.5Kg / cubic pile;

[0032] c. Repeat the stirring, hydrating and turning of the pile for many times until the smell of ammonia gas is reduced to non-irritating. There is no need to cover nitrogen-protecting materials, and continue to ferment until the temperature of the pile is lower than 45...

Embodiment 2

[0036] a. After mixing the raw materials, use well water to adjust the moisture to 60%, use ammonium carbonate and / or mushroom dregs with an organic matter content of 75% to adjust the carbon-to-nitrogen ratio to 20:1, and stack the materials for fermentation;

[0037] b. Cover a layer of nitrogen-preserving material on the surface of the stockpile with 2Kg / cubic stockpile to carry out a fermentation. During the fermentation process, after each stockpiling is turned over, use water replenishing liquid to replenish water until the overall moisture content of the stockpile is 50% and turn over For stacking, after each stacking is turned over, a layer of nitrogen-preserving material is covered on the stacking material at a rate of 2Kg / cubic stacking;

[0038] c. Repeat the stirring, hydrating and turning of the pile for many times until the smell of ammonia gas is reduced to non-irritating. There is no need to cover nitrogen-protecting materials, and continue to ferment until the ...

Embodiment 3

[0042] a. After mixing the raw materials, use well water to adjust the moisture to 70%, use ammonium bicarbonate and / or wood bran with an organic matter content of 80% to adjust the carbon-nitrogen ratio to 25:1, and stack the materials for fermentation;

[0043] b. Cover the surface of the stockpile with 5Kg / cubic stockpile and cover a layer of nitrogen-preserving material for a fermentation. During the first fermentation, after turning over the stockpiles each time, use water replenishing liquid to replenish water until the overall moisture content of the stockpile is 55% and turn over Stacking, after each stacking is turned over, a layer of nitrogen-preserving material is covered on the stacking at a rate of 5Kg / cubic stacking;

[0044] c. Repeat the stirring, hydrating and turning of the pile for many times until the smell of ammonia gas is reduced to non-irritating. There is no need to cover nitrogen-protecting materials, and continue to ferment until the temperature of th...

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PUM

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Abstract

The invention discloses a method for preparing a nitrogen-conserving active organic fertilizer from food factory waste liquid and animal dung. The method comprises the following steps: mixing the raw materials, and regulating the moisture and the carbon nitrogen ratio; covering the stockpile with a layer of nitrogen-conserving material and carrying out primary fermentation, and in the process, every time when the stockpile is turned, replenishing water according to the requirements, turning the stockpile and covering the stockpile with one layer of nitrogen-conserving material; repeating the process a plurality of times until the ammonia smell is lightened and no irritation is left, then stopping applying the nitrogen-conserving material, and continuing fermenting until the temperature of the stockpile is lower than 45 DEG C; turning the stockpile again, directly replenishing water to the surface layer of the material so that the surface layer is wet by the thickness of 10cm and carrying out secondary fermentation for at least 20 days, thereby obtaining the nitrogen-conserving active organic fertilizer. The method for preparing the nitrogen-conserving active organic fertilizer is used for solving the problems of relatively excessive loss of nitrogen, stink of ammonia gas and the like in the fermentation process of the fertilizer, and meanwhile, is capable of improving the using effect of the fertilizer. The method is a model of combined environmental protection and agriculture.

Description

【Technical field】 [0001] The invention relates to a production method of a nitrogen-preserving active organic fertilizer, in particular to a method for preparing a nitrogen-preserving active organic fertilizer by using food factory waste liquid and poultry manure, and belongs to the technical field of agricultural fertilizer production. 【Background technique】 [0002] In the current process of using poultry and livestock manure to make organic fertilizers, often due to raw material C / N and process problems, the fertilizer production site is full of ammonia, flies fly around, and the fertilizer will generally lose nitrogen and humic acid content. Relatively low, it not only affects the physical and mental health of workers, but also leads to nitrogen loss, resignation of workers, and disgust of visitors to visit, which has attracted great attention from manufacturers. [0003] At present, waste molasses from some sugar factories and waste yeast liquid from yeast factories hav...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05F17/00C05G3/00
CPCY02W30/40
Inventor 梁敏锐刘付东曾凡强
Owner 广东巴斯德环境科技有限公司