Composite soil conditioner for improving polluted soil and preparation method thereof

A soil conditioner and a technology of polluted soil, which is applied in the field of biological treatment of environmental pollutants and agricultural production. It can solve the problems of long repair period affecting crop cultivation, etc., and achieve sustainable development, avoid soil compaction, and increase quantity and vitality. Effect

Pending Publication Date: 2022-02-18
GUANGDONG UNIV OF PETROCHEMICAL TECH
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the complexity of the soil system, green restoration often has problems such as a long repair period that affects crop cultivation. Therefore, it has become the current modern A big trend in agriculture

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Composite soil conditioner for improving polluted soil and preparation method thereof
  • Composite soil conditioner for improving polluted soil and preparation method thereof
  • Composite soil conditioner for improving polluted soil and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0036] In a further embodiment of the present invention, the preparation method of the corn stalk nano-biochar material comprises the following steps:

[0037] Corn stalks are pulverized and placed in a tube furnace, and fired at a high temperature for 3-5 hours under a nitrogen atmosphere to obtain corn stalk biochar;

[0038] The prepared corn stalk biochar is cooled to room temperature;

[0039] The corn stalk nano-biochar material was prepared by pulverizing to 20-100nm with a ball mill.

[0040] Wherein, the temperature in the above-mentioned tube furnace is 700° C., and the high-temperature firing is carried out for 4 hours under nitrogen atmosphere.

[0041] In a further embodiment of the present invention, the preparation method of the nano-carbon modified microcapsule agent comprises the following steps:

[0042] Cultivation of bacterial strains: adopt sphingomonas (Sphingomonas) GY2B bacterial strain to cultivate, bacterial strain is inoculated in the fermentor (ac...

Embodiment 1

[0065] Preparation of composite soil conditioner for improving polluted soil of the present invention

[0066] (1) Preparation of corn straw nano-biochar materials

[0067] The corn stalks are crushed and placed in a tube furnace, fired at 700°C for 4 hours under a nitrogen atmosphere, and the corn stalk biochar is cooled to room temperature; then crushed to 20-100nm by a ball mill to obtain corn stalk nano-carbon materials ;

[0068] (2) Preparation of microbial fertilizer

[0069] The corn stalks are pretreated and pulverized, and fermented bacteria (combined with photosynthetic bacteria, saccharomyces, fermented filamentous bacteria and actinomycetes and a mixture of rice bran matrix (2-4:100); 4wt% of the total raw materials are added) ~6wt%) to obtain the mixed material, which is then placed in a compost bucket for fermentation, and the fermented material is pulverized and dried to obtain the microbial fertilizer.

[0070] Wherein, the corn stalk pretreatment step is c...

Embodiment approach

[0080] Implementation method: In the corn field, apply the base fertilizer about 10 days before deep plowing, and apply 100kg of compound soil conditioner or ordinary compound fertilizer for improving polluted soil per mu. Set up three parallels for each treatment, and each parallel Set up a test area of ​​20m2. The quality and yield statistical results of the final corn are shown in Table 1, and the content of the initial 16 polycyclic aromatic hydrocarbons in the experimental site is shown in Table 2, and the soil residual total amount situation after implementing the fertilizer of the present invention for 60 days is shown in Table 3; The changes of dehydrogenase activity and FDA total activity are shown in Table 4; the number of bacteria in the soil and the number of PAHs degrading bacteria are shown in Table 5.

[0081] Table 1 Statistical results of corn quality and yield

[0082]

[0083] Table 2 The content of the initial 16 polycyclic aromatic hydrocarbons in the ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to the technical field of environmental pollutant biological treatment and agricultural production, and provides a composite soil conditioner for improving polluted soil, which is prepared from the following raw materials in parts by weight: 10 to 20 parts of a corn straw nano-biochar material, 5 to 10 parts of a nano-carbon modified micro-capsule fungicide and 70 to 85 parts of a microbial fertilizer, totaling 100 parts. The invention further provides a preparation method of the composite soil conditioner for improving the polluted soil. According to the composite soil conditioner for improving the polluted soil and the preparation method, the content of polycyclic aromatic hydrocarbons (PAHs) in the soil can be remarkably reduced, the slow release effect of a soil fertilizer is improved, the yield and the quality of crops are promoted, and the composite soil conditioner can be used as a composite conditioner and a fertilizer for PAHs polluted arable soil.

Description

technical field [0001] The invention belongs to the field of biological treatment technology of environmental pollutants and agricultural production, and specifically relates to a novel compound soil conditioner for improving polluted soil with the functions of “repairing pollution” and “enriching soil” and a preparation method thereof. Background technique [0002] Efficient green restoration of organically polluted farmland soil, improvement of soil fertility and improvement of crop quality are hot and difficult issues in modern agriculture. Due to the complexity of the soil system, green restoration often has problems such as a long repair period that affects crop cultivation. Therefore, it has become the current modern A major development trend in agriculture. [0003] According to statistics, the annual total discharge of polycyclic aromatic hydrocarbons (PAHs) in my country is as high as 25,300 tons. Due to atmospheric deposition, more than 90% of PAHs in the atmosphe...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/80C05G3/40C05F17/20C09K17/40C12N11/14C12N11/10C12N11/04C12R1/01C09K101/00
CPCC05G3/80C05G3/40C05D9/00C05F17/20C09K17/40C12N11/14C12N11/10C12N11/04C09K2101/00C05F5/002C05F11/00C05F11/08Y02W30/40
Inventor 邓辅财窦容妮孙建腾滕青牛显春于晓龙孙容容余元元朱锡芬马寅周海军
Owner GUANGDONG UNIV OF PETROCHEMICAL TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap