Method for preparing organic compound fertilizer through sludge generated by processing cassava starch

A technology of tapioca starch and compound fertilizer, which is applied in the direction of organic fertilizer, organic fertilizer preparation, sewage/sludge fertilizer, etc. The effect of healthy growth and increased yield

Inactive Publication Date: 2016-06-15
广西农垦明阳生化有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Another object of the present invention is to provide a method for preparing organic compound fertilizer from the sludge produced by cassava starch processing, which solves the harmless and resourceful application of industrial sludge

Method used

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  • Method for preparing organic compound fertilizer through sludge generated by processing cassava starch
  • Method for preparing organic compound fertilizer through sludge generated by processing cassava starch
  • Method for preparing organic compound fertilizer through sludge generated by processing cassava starch

Examples

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Effect test

Embodiment 1

[0031] A kind of method that utilizes the sludge that cassava starch processing produces to prepare organic compound fertilizer, comprises the following steps:

[0032] Step 1. Mix the sludge, distiller's residue and coal ash evenly according to the mass ratio of 2:1:1 to obtain the first mixture, inoculate the first mixture with a microbial agent with a mass fraction of 4%, and stack in a three-dimensional trapezoidal shape Carry out aerobic fermentation for 10 days to obtain the first fermentation product. During the aerobic fermentation, turn the heap 1-3 times a day to control the moisture content at 25%-45%, and the temperature between 40-60°C. The sludge is used to produce cassava The sludge waste obtained by starch, the microbial bacterial agent is composed of Bacillus amyloliquefaciens, Bacillus colloid, Bacillus subtilis and Bacillus megaterium in a mass ratio of 1:1:1:1;

[0033] Step 2: Add mixed fertilizer to the first fermentation product and mix to obtain the sec...

Embodiment 2

[0036] A kind of method that utilizes the sludge that cassava starch processing produces to prepare organic compound fertilizer, comprises the following steps:

[0037] Step 1. Mix the sludge, wine tank slag and coal ash uniformly according to the mass ratio of 4:1:1 to obtain the first mixture, inoculate the first mixture with a microbial agent with a mass fraction of 5%, and stack in a three-dimensional trapezoidal shape Carry out aerobic fermentation for 12 days to obtain the first fermentation product. During the aerobic fermentation, turn the heap 1-3 times a day to control the moisture content at 35%-45%, and the temperature between 40-60°C. The sludge is used to produce cassava The sludge waste obtained by starch, the microbial bacterial agent is composed of Bacillus amyloliquefaciens, Bacillus colloid, Bacillus subtilis and Bacillus megaterium in a mass ratio of 1:1:1:1;

[0038] Step 2. Add mixed fertilizer to the first fermentation product and mix to obtain the secon...

Embodiment 3

[0041] A kind of method that utilizes the sludge that cassava starch processing produces to prepare organic compound fertilizer, comprises the following steps:

[0042] Step 1. Mix the sludge, wine tank slag and coal ash evenly according to the mass ratio of 5:1:1 to obtain the first mixture, inoculate the first mixture with a microbial agent with a mass fraction of 6%, and stack in a three-dimensional trapezoidal shape Carry out aerobic fermentation for 15 days to obtain the first fermentation product. During the aerobic fermentation, turn the heap 1-3 times a day to control the moisture content at 25%-45%, and the temperature between 40-60°C. The sludge is used to produce cassava The sludge waste obtained by starch, the microbial bacterial agent is composed of Bacillus amyloliquefaciens, Bacillus colloid, Bacillus subtilis and Bacillus megaterium in a mass ratio of 1:1:1:1;

[0043] Step 2. Add mixed fertilizer to the first fermentation product and mix to obtain the second m...

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Abstract

The invention discloses a method for preparing an organic compound fertilizer through sludge generated by processing cassava starch. The method includes the steps: 1) uniformly mixing sludge, grain stillage residue and coal ash according to the mass ratio of 2-5:1:1 to obtain a first mixture; 2) inoculating a microbial inoculant being 4-6% in mass percentage, stacking the first mixture into a stereo trapezoid shape, performing aerobic fermentation for 8-15 days to obtain a first fermentation product, wherein the mixture stack is stirred for 1-3 times every day to control the moisture content to be 25-45% and the temperature to be 40-60 DEG C, and the microbial inoculants is composed of bacillus amyloliquefaciens, bacillus mucilaginosus, bacillus subtilis and bacillus megaterium according to the mass ratio of 1:1:1:1; and 3) adding a nitrogen fertilizer, a phosphorous fertilizer and a potassium to the first fermentation product fertilizer with uniform mixing to obtain a second mixture; and 4) stacking the second mixture into a circular conical shape, sealing the second mixture and performing anaerobic fermentation at 25-35 DEG C for 3-8 days to obtain the organic compound fertilizer which has the effect of increasing yield and improving quality of crops.

Description

technical field [0001] The invention relates to the technical field of cassava starch industrial sludge recovery. More specifically, the present invention relates to a method for preparing organic compound fertilizer from the sludge produced by cassava starch processing. Background technique [0002] In the industrial production of cassava starch, fresh cassava and dried cassava chips are used as raw materials to produce modified starch and alcohol, and a large amount of sludge is generated in this process, which is accompanied by the problem of sludge disposal. At present, most cassava starch manufacturers treat the sludge by simply mechanically dehydrating it through a filter press, and then directly transport it to the dump site for landfill or stack without any treatment. Due to improper disposal, it produces stench and breeds mosquitoes and flies, seriously polluting soil, groundwater and the environment. Due to long-distance foreign transportation and stacking, the c...

Claims

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Application Information

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IPC IPC(8): C05G1/06
CPCC05D9/00C05B7/00C05F5/008C05F7/00C05F11/08C05F17/00C05C9/00C05D1/02C05F9/04
Inventor 杨青松李富山玉琼广曹晓辉
Owner 广西农垦明阳生化有限公司
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