Method for producing alkaline water-soluble fertilizers by utilizing vegetable wastes

A technology for vegetable waste and water-soluble fertilizer, applied in the preparation and application of alkaline orthophosphate fertilizer and organic fertilizer, can solve the problems of high risk of pesticide residues and low utilization rate of bottom liquid, and reduce agricultural non-point source pollution. , Improve the utilization rate of fertilizers, the effect of compatibility science

Inactive Publication Date: 2020-06-16
YUNNAN REASCEND TOBACCO TECH GRP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, in view of serious soil acidification, low utilization rate of vegetable waste bottom liquid and high risk of pesticide residues, it is of great practical significance to develop and utilize alkaline water-soluble fertilizers from vegetable waste.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] A method for producing alkaline water-soluble fertilizer from vegetable waste, the method is as follows:

[0056] 1. Sorting the collected vegetable waste, then adding the sorted vegetable waste into the fermenter, and adding a commercially available mixed powder containing Clostridium to the fermenter, mixing it with water until it is submerged and discarding Then seal the fermenter and perform anaerobic fermentation for 20-30 days. Finally, the fermentation mixture in the fermenter is filtered to obtain organic manure residue and fermentation bottom liquid.

[0057] 2. Put the fermentation bottom liquid in the fermentation tank, add the seed liquid containing Bacillus subtilis, light calcium carbonate and sesame oil, set the rotation speed of the fermentation tank to 145r / min, and the ventilation volume to 38m 3 / h, fermented at 36°C for 28 hours, heated the filtrate to 125°C for 30 minutes after filtration, cooled to room temperature, and obtained the fermentation f...

Embodiment 2

[0065] 1. Put the sorted vegetable waste into the fermenter, add the mixed powder containing Clostridium to the fermenter, add water to seal and perform anaerobic fermentation, filter the fermentation mixture in the fermenter to obtain the fermentation bottom liquid ;

[0066] 2. Put the fermentation bottom liquid in the fermentation tank, add the seed liquid containing Bacillus licheniformis, light calcium carbonate and sesame oil, set the rotation speed of the fermentation tank to 140r / min, and the ventilation volume to 40m 3 / h, fermented at 37°C for 30 hours, heated the filtrate to 115°C for 60 minutes after filtration, and cooled to room temperature to obtain the fermentation filtrate;

[0067] 3. Take 20 parts of the fermentation filtrate of step 2, add 2 parts of acidulant (composed of 2 parts of citric acid and 3 parts of malic acid), after the acidulant is completely dissolved, add potassium phosphate in batches, and the amount of potassium phosphate added in each bat...

Embodiment 3

[0073] 1. Put the sorted vegetable waste into the fermenter, add the mixed powder containing Clostridium to the fermenter, add water to seal and anaerobically ferment, filter the fermentation mixture in the fermenter to obtain the fermentation bottom liquid ;

[0074] 2. Put the fermentation bottom liquid in the fermentation tank, add the seed liquid of Bacillus licheniformis, light calcium carbonate and organic silicon defoamer, set the rotation speed of the fermentation tank to 150r / min, and the ventilation volume to 42m 3 / h, ferment at 38°C for 25 hours, after filtration, heat the filtrate to 120°C for 45 minutes, and cool to room temperature to obtain the fermentation filtrate;

[0075] 3. Take 60 parts of the fermentation filtrate in step 2, add 1 part of acidifier (1 part of citric acid), after the acidifier is completely dissolved, add potassium phosphate in batches, the amount of potassium phosphate added in each batch is 0.1 to 5 parts, add a After the batches are fi...

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PUM

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Abstract

The invention relates to a method for producing alkaline water-soluble fertilizers by utilizing vegetable wastes. The method comprises the following steps: (1) adding the vegetable wastes into a fermentation tank, carrying out anaerobic fermentation, and filtering to obtain a fermentation base solution; (2) adding a seed solution, calcium carbonate and a defoaming agent into the fermentation basesolution, fermenting, filtering, and sterilizing at high temperature; (3) adding an acidifying agent into the fermentation filtrate, adding potassium phosphate in batches, and monitoring the pH valueof the solution; (4) adding a mixed material consisting of medium trace elements, organic matters and the like, stirring and dissolving; (5) adding acid and alkali to adjust the pH value to a proper pH value; and (6) adding a microbial inoculum, dissolving and uniformly mixing, and customizing alkaline water-soluble fertilizers with different pH values. The method can improve the utilization rateof the vegetable wastes, and the prepared product can realize cyclic planting of crops and improve and fertilize soil.

Description

technical field [0001] The invention belongs to the technical field of fertilizer preparation methods, and in particular relates to a preparation method of water-soluble fertilizer. Background technique [0002] Large-scale planting of vegetables has developed rapidly, but fertilization technology is relatively backward, fertilizer waste is serious, and problems such as soil acidification, secondary salinization, and groundwater nitrate pollution are prominent. The rapid development of the vegetable industry has brought a large amount of vegetable waste. Most of the vegetable waste is easy to carry germs and insect eggs, and has a high moisture content, low carbon-nitrogen ratio, poor structure, perishable deterioration, and is difficult to be directly used as a resource. A large amount of vegetable waste is abandoned, which not only wastes resources, but also seriously threatens the safe production of local vegetables. [0003] At present, there are many treatment methods ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00C05G3/80C05F17/00C05G5/20
CPCC05B7/00C05F17/00C05C5/02C05C9/00C05C11/00C05D1/00C05D3/00C05F11/00C05F11/02C05F11/08C05G3/00Y02W30/40
Inventor 刘维娟郑武胡玲肖靖译黄自达郑威李宙文杨欣
Owner YUNNAN REASCEND TOBACCO TECH GRP
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