Soil remediation fertilizer prepared from kitchen waste as well as preparation method and application thereof

A kitchen waste and soil remediation technology, which is applied in the field of soil improvement, can solve problems such as soil pollution, achieve the effects of regulating soil compaction, realizing harmlessness and resource utilization, and improving the quality of compost substrates

Inactive Publication Date: 2020-06-23
时科生物科技(上海)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The acidic soil conditioner can significantly increase soil pH and improve soil acidity. However, the food residue solid waste used comes from kitchen waste, which contains more oil and salt. It can be directly made into fertilizer, which may cause soil pollution.

Method used

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  • Soil remediation fertilizer prepared from kitchen waste as well as preparation method and application thereof
  • Soil remediation fertilizer prepared from kitchen waste as well as preparation method and application thereof
  • Soil remediation fertilizer prepared from kitchen waste as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example 1

[0060] This preparation example provides a kind of kitchen waste after anaerobic heat treatment, and the anaerobic heat treatment includes the following steps:

[0061] (1) Salt washing: After soaking the kitchen waste in water, dehydration and desalination are carried out by pressing to obtain Na + Desalted kitchen waste with a mass concentration of 0.11%;

[0062] (2) drying: drying the desalted kitchen waste obtained in step (1) at 125°C for 2 hours to obtain dry kitchen waste with a water content of 30%;

[0063] (3) Anaerobic heat treatment: the dried kitchen waste obtained in step (2) was subjected to anaerobic heat treatment at 350° C. for 2.5 hours to obtain the anaerobic heat-treated kitchen waste.

[0064] (4) Cooling: the anaerobic heat-treated kitchen waste obtained in step (3) is condensed through a condensing pipeline at 20°C.

preparation example 2

[0066] This preparation example provides a kind of kitchen waste after anaerobic heat treatment, and the anaerobic heat treatment includes the following steps:

[0067] (1) Salt washing: After soaking the kitchen waste in water, dehydration and desalination are carried out by pressure centrifugation to obtain Na + Desalted kitchen waste with a mass concentration of 0.3%;

[0068] (2) Drying: drying the desalted kitchen waste obtained in step (1) at 130°C for 1 hour to obtain dry kitchen waste with a water content of 37%;

[0069] (3) Anaerobic heat treatment: the dry kitchen waste obtained in step (2) was subjected to anaerobic heat treatment at 425° C. for 2 hours to obtain the anaerobic heat-treated kitchen waste.

[0070] (4) Cooling: the anaerobic heat-treated kitchen waste obtained in step (3) is condensed through a condensing pipeline at 10°C.

preparation example 3

[0072] This preparation example provides a kind of kitchen waste after anaerobic heat treatment, and the anaerobic heat treatment includes the following steps:

[0073] (1) Salt washing: After soaking the kitchen waste in water, first use centrifugation, and then use pressing to dehydrate and desalinate to obtain Na + Desalted kitchen waste with a mass concentration of 0.1%;

[0074] (2) drying: drying the desalted kitchen waste obtained in step (1) at 130°C for 2 hours to obtain dry kitchen waste with a water content of 20%;

[0075] (3) Anaerobic heat treatment: the dried kitchen waste obtained in step (2) was subjected to anaerobic heat treatment at 250° C. for 3 hours to obtain the anaerobic heat-treated kitchen waste.

[0076] (4) Cooling: the anaerobic heat-treated kitchen waste obtained in step (3) is condensed through a condensing pipeline at 30°C.

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Abstract

The invention provides a soil remediation fertilizer prepared from kitchen waste as well as a preparation method and an application of the soil remediation fertilizer. The soil remediation fertilizeris prepared from kitchen waste subjected to anaerobic heat treatment, a complex microbial inoculant and a synergistic component. The soil remediation fertilizer prepared from the kitchen waste can reduce resource waste and effectively improve the problems of grease, germs and worm eggs of the kitchen waste, so that the physical, chemical and biological properties of soil are effectively improved,soil nutrients are maintained, and the utilization rate of the soil nutrients is increased.

Description

technical field [0001] The invention belongs to the technical field of soil improvement, and in particular relates to a soil remediation fertilizer prepared by using kitchen waste and a preparation method and application thereof. Background technique [0002] Since entering chemical agriculture, especially the large-scale production and use of chemical fertilizers, agriculture has developed rapidly, meeting the supply of food and the demand for a large number of materials. However, the extensive use of chemical fertilizers and pesticides, coupled with the high multi-cropping index, has become an increasingly significant problem of soil barriers, which has become an important factor affecting agricultural production and restricting the sustainable development of agriculture. The use of kitchen waste to prepare soil remediation fertilizer is not only a recycling of waste resources, but also can improve the soil environment and increase soil output capacity. However, kitchen w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05F9/04C05G3/00C05G3/80A01B79/02
CPCA01B79/02C05F9/04C05G3/00Y02A40/20
Inventor 刘善良常春丽郑巧萍蒲加兴蒲加军向蓉孙鹏周涛
Owner 时科生物科技(上海)有限公司
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