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Soil conditioner based on kitchen waste, preparation method thereof and soil improvement method

A technology for soil conditioner and kitchen waste, which is applied in the field of waste treatment, can solve the problems of difficult disposal, pollution, and difficulty in utilization of kitchen waste, and achieves the effects of facilitating subsequent treatment, promoting anaerobic fermentation process, and reducing moisture content.

Inactive Publication Date: 2020-05-01
HUNAN VEGETABLE RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above technical problems, the purpose of the present invention is to provide a soil improver based on kitchen waste and its preparation method and soil improvement method, which can solve the current problems of kitchen waste disposal, difficulty in utilization, and easy pollution, and provide Recycling of kitchen waste provides a new direction and at the same time improves the properties of secondary salinized soil

Method used

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  • Soil conditioner based on kitchen waste, preparation method thereof and soil improvement method
  • Soil conditioner based on kitchen waste, preparation method thereof and soil improvement method
  • Soil conditioner based on kitchen waste, preparation method thereof and soil improvement method

Examples

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Embodiment 1

[0034] A preparation method of a soil conditioner based on kitchen waste, comprising the following steps:

[0035] (1) Raw material processing: the collected kitchen waste is sorted by a sorting machine to remove the undecomposed and unbreakable substances, and then crush the remaining organic matter to 40 mesh to obtain an organic mixture with uniform particle size;

[0036] (2) Water elution of salt: add water to the organic mixture obtained in step (1) at a mass ratio of 1:2, control the temperature at 60° C., and stir for 15 minutes to obtain a water-washed organic mixture;

[0037] (3) Centrifugal dehydration: the water-washed organic mixture obtained in step (2) is centrifuged for 10min dehydration at a rotating speed of 4000r / min, and the grease in the waste water is preliminarily filtered out to obtain a dehydrated organic mixture;

[0038] (4) secondary deoiling: in the dehydration organic mixture that step (3) obtains, add compound enzyme preparation, comprise the pe...

Embodiment 2

[0041] A preparation method of a soil conditioner based on kitchen waste, comprising the following steps:

[0042] (1) Raw material treatment: the collected food waste is sorted by a sorting machine to remove the undecomposed and unbreakable substances, and then crush the remaining organic matter to 60 mesh to obtain an organic mixture with uniform particle size;

[0043] (2) Water elution of salt: add water to the organic mixture obtained in step (1) at a mass ratio of 1:3, control the temperature at 50° C., and stir for 20 minutes to obtain a water-washed organic mixture;

[0044] (3) Centrifugal dehydration: the water-washed organic mixture obtained in step (2) is centrifuged for 8min dehydration at a rotating speed of 6000r / min, and the grease in the waste water is preliminarily filtered out to obtain a dehydrated organic mixture;

[0045] (4) secondary deoiling: in the dehydration organic mixture that step (3) obtains, add compound enzyme preparation, comprise the pectina...

Embodiment 3

[0048] A preparation method of a soil conditioner based on kitchen waste, comprising the following steps:

[0049] (1) Raw material treatment: the collected kitchen waste is sorted by a sorting machine to remove the undecomposed and unbreakable substances, and then crush the remaining organic matter to 80 mesh to obtain an organic mixture with uniform particle size;

[0050] (2) Water elution of salt: add water to the organic mixture obtained in step (1) at a mass ratio of 1:4, control the temperature at 70° C., and stir for 15 minutes to obtain a water-washed organic mixture;

[0051] (3) Centrifugal dehydration: the water-washed organic mixture obtained in step (2) is centrifuged for 6 minutes to dehydrate at a rotating speed of 8000r / min, and the grease in the waste water is preliminarily filtered out to obtain a dehydrated organic mixture;

[0052] (4) Secondary deoiling: in the dehydration organic mixture that step (3) obtains, add compound enzyme preparation, comprise th...

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Abstract

The invention belongs to the technical field of waste treatment, and particularly relates to a soil conditioner based on kitchen waste, a preparation method of the soil conditioner and a soil improvement method. The preparation method of the soil conditioner comprises the following steps: (1) treating raw materials; (2) washing and desalting; (3) performing centrifugal dehydration; (4) performingsecondary de-oiling; and (5) preparing the soil conditioner. The soil conditioner is applied to soil, mixed, irrigated and covered with a film, the salt content of the soil can be greatly reduced, thecontent of organic matters, total nitrogen, quick-acting phosphorus and quick-acting potassium in the soil can be increased, meanwhile, the pH of the soil can be increased, the volume weight of the soil can be reduced, formation of a soil aggregate structure can be promoted, and the porosity of the soil can be increased. Soil continuous cropping obstacles are reduced, and the incidence rate of crop soil-borne diseases caused by continuous cropping soil is reduced. The soil improvement method is high in treatment speed and free of pollution residues after treatment is completed, the physical and chemical properties of the secondary salinized soil can be remarkably improved, meanwhile, a new direction is provided for recycling of the kitchen waste, and the application prospect is great.

Description

technical field [0001] The invention belongs to the technical field of waste treatment, and in particular relates to a soil improver based on kitchen waste, a preparation method thereof and a soil improvement method. Background technique [0002] Kitchen waste, commonly known as swill, is mainly a mixture of oil, water, fruit peels, vegetables, rice noodles, fish, meat, bones, waste tableware, plastics, paper towels and other substances. Kitchen waste accounts for 37%-45% of urban domestic waste. %, is an important part of domestic waste. Food waste mainly composed of organic matter is the source of municipal solid waste corruption and secondary pollution. High moisture content and high organic matter content make food waste easy to spoil and deteriorate, causing great difficulties for temporary storage, collection, transportation and treatment. [0003] At present, my country is promoting garbage sorting, but due to imperfect recycling facilities and systems, most househo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K17/40B09C1/10C09K101/00C09K109/00
CPCB09C1/105B09C2101/00C09K17/40C09K2101/00C09K2109/00
Inventor 李鑫李雪峰张清壮唐艺欣张芳
Owner HUNAN VEGETABLE RES INST
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