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Molasses fermentation waste liquid organic sustained-release fertilizer and application thereof

A technology of fermentation waste liquid and slow-release fertilizer, which is applied in the field of functional polymers and can solve the problems of low utilization rate of chemical fertilizers

Inactive Publication Date: 2016-07-20
ZHONGKAI UNIV OF AGRI & ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In addition, the utilization rate of chemical fertilizers in my country is very low at present. The utilization rate of nitrogen fertilizer is only 30-35%, that of phosphate fertilizer is only 10-25%, and that of potassium fertilizer is 35-50%, which is far below the level of developed countries. Fertilizer release can improve the utilization rate of chemical fertilizers and help alleviate non-point source pollution of agricultural chemical fertilizers
More importantly, there is currently no research on the preparation of organic slow-release fertilizers using waste poultry feather protein, molasses fermentation waste liquid and natural sodium alginate as the main components at home and abroad.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] Weigh 30g of crushed feathers and place them in a beaker, add 240g of hydrogen peroxide solution with a mass concentration of 40%, raise the temperature to 60°C, and use a stirring device to continuously stir the hydrogen peroxide solution of feathers, the stirring speed is controlled at 100r / min , stirring time is 4h. Then, the above mixed solution was filtered, and the hydrogen peroxide on the filter residue was washed with distilled water, and the filter residue was placed in a drying oven at 60° C. for 36 hours. Finally, use a pulverizer to crush the feather waste residue to obtain feather protein powder for subsequent use.

Embodiment 2

[0012] Put 30g of crushed feathers in a beaker, add 450g of peracetic acid solution with a mass concentration of 20%, raise the temperature to 50°C, and use a stirring device to continuously stir the hydrogen peroxide solution of the feathers, and the stirring speed is controlled at 150r / min , stirring time is 2h. Then, the above mixed solution was filtered to obtain a filter residue, which was washed with distilled water, and then the filter residue was placed in an oven at 60° C. for 24 hours to dry. Finally, the above-mentioned filter residue is pulverized with a pulverizer to obtain feather protein powder, which is set aside.

Embodiment 3

[0014] Put 0.2g of the feather protein prepared in Example 1 in a beaker, add 20mL of sodium hydroxide solution with a mass concentration of 3%, and stir and dissolve it with a stirring device. After the dissolution is complete, add 0.3g of sodium alginate to the feather protein In the solution, continue to stir, and then add 5 mL of molasses fermentation waste liquid with a solid content of 30%, and stir evenly to obtain a mixed sol. Use a medical syringe pump and a syringe to drop the above mixed sol into 50ml of zinc chloride solution with a concentration of 1.0mol / L, keep the solution temperature at 30°C, and stir for 0.5h. Finally, the microspheres formed above are filtered, washed and dried to obtain organic slow-release fertilizer microspheres. The organic slow-release fertilizer of molasses fermentation waste liquid can be applied to the field of environmental protection, and alleviates non-point source pollution of agricultural chemical fertilizers caused by excessive...

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PUM

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Abstract

The invention relates to the fields of functional high-molecule technology and fertilizer preparation, and discloses a molasses fermentation waste liquid organic sustained-release fertilizer and an application thereof. The organic sustained-release fertilizer comprises nutrient elements such as nitrogen, phosphorus and trace elements. According to the invention, a feather waste is subjected to oxidation modification with a chemical method, such that feather protein with polycationic characteristics is prepared; the feather protein is used for modifying sodium alginate with polycationic characteristics. The modified sodium alginate is adopted as a carrier of the sustained-release fertilizer. A molasses fermentation waste liquid is adopted as a sustained-release fertilizer component. Therefore, the molasses fermentation waste liquid organic sustained-release fertilizer is prepared. The invention provides an approach for solving the problem of the pollution to the ecological environment caused by the feather waste and the molasses fermentation waste liquid, such that waste is turned valuable. Waste resource is reasonably utilized, and green and environment-friendly economic benefit is provided. With the application, environment-friendly organic sustained-release fertilizer can be prepared with a low price. The fertilizer can be applied in the fields of agriculture and forestry, environment protection, animal husbandry, crop farming and the like.

Description

technical field [0001] The invention relates to the technical field of functional polymers and the field of fertilizer manufacturing. By using feather waste to prepare hydrolyzed feather protein and modifying natural sodium alginate to prepare organic slow-release fertilizer from molasses fermentation waste liquid, the feather waste and molasses fermentation waste liquid can be detoxified. For profit, turning waste into treasure. Background technique [0002] Molasses fermentation waste liquid is a by-product of the sugar industry and contains high concentrations of organic matter. Direct discharge will cause deterioration of water quality, pollute soil, and even cause environmental pollution such as eutrophication of water bodies. However, molasses fermentation waste liquid has potential prospects because it has nutrients such as nitrogen, phosphorus, calcium, sodium, trace elements, auxins, organic acids, vitamins, and proteins, which can be used to prepare organic compoun...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05F5/00
CPCY02A40/20
Inventor 周新华林粤顺舒绪刚张敏周红军龚圣
Owner ZHONGKAI UNIV OF AGRI & ENG
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