Organic fertilizer taking coffee grounds as main raw material, and aerobic composting process and application of organic fertilizer

An aerobic composting and organic fertilizer technology, applied in the field of resource utilization and composting, can solve the problems of unfavorable agricultural production and direct utilization, and achieve the effects of reducing the risk of salinization, improving the degree of decomposition, and good repairing effect

Inactive Publication Date: 2020-02-18
YANTAI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Coffee grounds are rich in organic matter, but they are biologically toxic, which is not conducive to the direct use of agricultural production

Method used

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  • Organic fertilizer taking coffee grounds as main raw material, and aerobic composting process and application of organic fertilizer
  • Organic fertilizer taking coffee grounds as main raw material, and aerobic composting process and application of organic fertilizer
  • Organic fertilizer taking coffee grounds as main raw material, and aerobic composting process and application of organic fertilizer

Examples

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Embodiment 1

[0074] An organic fertilizer with coffee grounds as the main raw material. The raw material components include: coffee grounds 89.5%, formulation A urea 1.4% and formulation B rice husk 9.1%.

[0075] The aerobic composting process of the above-mentioned organic fertilizer with coffee grounds as the main raw material, the steps are as follows:

[0076] (1) Ingredients: According to the formula ratio, take coffee grounds and blending agent A and mix thoroughly, add water to adjust the moisture content of the mixture to 55%, and the carbon-nitrogen ratio to 25; continue to add rice husks with a moisture content of 55%, to obtain a premix materials;

[0077] (2) composting: put the premixed material of step (1) into the adiabatic composting reactor, add the high-temperature aerobic composting bacterial agent composting of 1% of the weight of the premixed material obtained in step (1), and carry out aerobic composting fermentation, The temperature in the center of the heap is rai...

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Abstract

The invention belongs to the technical field of resource utilization and composting, and relates to an organic fertilizer taking coffee grounds as a main raw material, and an aerobic composting process and an application of the organic fertilizer. Residual coffee grounds processed in coffee shops are used as the main raw material, environmental pollution caused by the coffee grounds is reduced, and the coffee grounds resources are recycled. High-temperature aerobic composting fermentation is realized by controlling the use amount and water content of each component in the mixture and controlling ventilation and the ventilation quantity according to the oxygen content in a reactor and the temperature of a compost body, so that the fermentation period is shortened, the composting energy consumption is reduced, the composting degree of the product is improved, and the degradation rate of organic matters is as high as 40% or above. The coffee grounds have a special porous structure and have an adsorption effect on soluble salt in the composting process, so that a relatively small EC change amplitude is ensured, the salinization risk of a composting product is reduced, and a quite goodremediation effect on soil is achieved. The pH value of the prepared organic fertilizer is 6.69-7.06, and the requirement that the pH value of a compost product should be 5.5-8.5 is met.

Description

technical field [0001] The invention belongs to the technical field of resource utilization and composting, and in particular relates to an organic fertilizer with coffee grounds as the main raw material, its aerobic composting process and its application. Background technique [0002] In recent years, coffee consumption has become a popular trend. According to statistics, the global coffee consumption in 2017 / 2018 reached 9.68286 million tons. With the rapid development of the coffee industry, coffee grounds, a by-product of coffee production, have brought huge environmental burdens. There are many schemes for the resource utilization of coffee grounds, such as the extraction of specific compounds such as mannose and antioxidant polyphenols, but there are still a lot of waste after extraction, and the environmental burden still exists. Coffee grounds are rich in organic matter, but they are biologically toxic, which is not conducive to the direct use of agricultural produc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/80C05F17/00
CPCC05C9/00C05F17/00C05F5/002C05F5/006C05F11/08Y02W30/40
Inventor 崔荣路昌张昱王虔祖
Owner YANTAI UNIV
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