Humic acid-pyroligneous liquor-based heavy metal contaminated soil repairing material and preparation method thereof

A technology for polluted soil and remediation materials, applied in soil conditioning materials, chemical instruments and methods, organic fertilizers, etc., can solve problems such as refractory degradation and aggravate soil secondary salinization, achieve easy acceptance and improve soil stability , the effect of excellent performance

Pending Publication Date: 2019-06-14
SHAANXI UNIV OF SCI & TECH
View PDF5 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is a natural and pollution-free ideal soil improvement material, but the humic acid that has not been fully fermented contains macromolecular polymers, which are difficult to be degraded by microorganisms in a short period of time, so it is easy to increase the secondary salinity of the soil during its use. degree of

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
  • Humic acid-pyroligneous liquor-based heavy metal contaminated soil repairing material and preparation method thereof
  • Humic acid-pyroligneous liquor-based heavy metal contaminated soil repairing material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] (1) Take 20 grams of biochar powder and 10 grams of humic acid, mix them, fully crush them, and dry them for later use.

[0022] (2) Add 10 grams of refined wood vinegar and 0.50 grams of aqueous solution containing trace elements to the dried material, and stir well.

[0023] (3) The mixture is air-dried to make granules, and after sieving, the humic acid-wood vinegar heavy metal-contaminated soil remediation material is obtained.

Embodiment 2

[0025] (1) Take 30 grams of biochar powder and 10 grams of humic acid, mix them, fully crush them, and dry them for later use.

[0026] (2) Add 10 grams of refined wood vinegar and 0.50 grams of aqueous solution containing trace elements to the dried material, and stir well.

[0027] (3) The mixture is air-dried to make granules, and after sieving, the humic acid-wood vinegar heavy metal-contaminated soil remediation material is obtained.

Embodiment 3

[0029] (1) Take 20 grams of biochar powder and 20 grams of humic acid, mix them, fully crush them, and dry them for later use.

[0030] (2) Add 10 grams of refined wood vinegar and 0.50 grams of aqueous solution containing trace elements to the dried material, and stir well.

[0031] (3) The mixture is air-dried to make granules, and after sieving, the humic acid-wood vinegar heavy metal-contaminated soil remediation material is obtained.

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 discloses a humic acid-pyroligneous liquor-based heavy metal contaminated soil repairing material and a preparation method thereof. The composite material uses biomass charcoal powder, humic acid and pyroligneous liquor as main raw materials, and the humic acid and pyroligneous liquor efficiently cooperate with each other to repair and reconstruct heavy metal contaminated degraded cultivated land, so the repairing material can be easily accepted by the soil and improve the stability of the soil. The repairing material has the advantages of low cost, waste reuse, and fullness in implementing the concept of sustainable development and constructing a conservation-minded society.

Description

technical field [0001] The invention relates to a humic acid-wood vinegar heavy metal contaminated soil restoration material and a preparation method thereof, belonging to the technical field of agricultural soil restoration. Background technique [0002] Soil is the basic guarantee for human survival. The quality of soil not only affects the quality of crops, but also affects people's health and the value of its sustainable use. At present, the soil quality of cultivated land in my country is becoming worse and worse. With the shortage of fresh water resources, it leads to land desertification and desertification, serious lack of soil nutrients, water and soil erosion, and the area of ​​salinized land is expanding day by day, and soil pollution, especially heavy metal pollution, is serious. According to reports, nearly 2000hm of land in my country has been severely polluted by heavy metals such as Cd, As, Cr, and Pb. 2 , accounting for about 1 / 5 of the total arable land; t...

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): C09K17/40C09K109/00
Inventor 朱军峰赵文甜朱婷高薇春王晶段浩季勇
Owner SHAANXI UNIV OF SCI & 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