Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for remediating Pb contaminated soil by accumulator flower iris

A technology for remediating soil and lead pollution, which is applied in the field of phytoremediation of heavy metal-contaminated soil, can solve the problems of difficult absorption and limit the scale of phytoremediation of lead-contaminated soil, and achieve strong stress resistance, no secondary pollution, and low cost Effect

Active Publication Date: 2019-06-21
ANHUI AGRICULTURAL UNIVERSITY +1
View PDF5 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the high negative charge of lead, it is easy to form covalent bonds with organic matter and iron-manganese oxides in the soil, and it is difficult to be absorbed by plants, which limits the scale of phytoremediation of lead-contaminated soil to a certain extent.

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
  • Method for remediating Pb contaminated soil by accumulator flower iris
  • Method for remediating Pb contaminated soil by accumulator flower iris
  • Method for remediating Pb contaminated soil by accumulator flower iris

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Variety Screening Pot Test

[0027] The test site is located in the greenhouse of the test base of Anhui Agricultural University. The geographical location is 117°14' east longitude, 31°52' north latitude, and an altitude of about 10m. There is no pollution source around the test site, and it is an area not polluted by heavy metals. This area is a transitional climate zone from the warm temperate zone to the subtropical zone, with a subtropical humid monsoon climate, with an annual average temperature of 15.7°C, rainfall of 940-1000mm, and sunshine of about 2100h. The pot test was collected from the top soil (1-20cm) of the base, and the soil type was black brown loam.

[0028] The test confirmed the single pollution of lead, the treatment concentration was 40mg / kg, and the non-polluted soil was used as the control (CK). 7 species including iris. Plastic basin specification Φ=30cm, H=20cm. After the soil is air-dried and passed through a 4mm sieve, the lead in the tr...

Embodiment 2

[0036] Spraying test of exogenous substances such as hormones and iron-manganese chelating agents

[0037] The test site is located in the Agricultural Science and Technology Demonstration Park in Fuyang City, Anhui Province. The geographical location is 115°81' east longitude, 32°89' north latitude, and an altitude of about 20m. Lead pollution is serious. The region has a warm temperate semi-humid monsoon climate, with an annual average temperature of 14.3°C, rainfall of 900-1000mm, and sunshine of about 2200h. Soil type Yellow brown loam.

[0038] On the lead-contaminated test site, divide the test plots, each plot is 30m 2 . The three varieties of Iris Northwestlia, Iris Beiling, and Pansies were planted respectively, and a treatment group and a control group were set up, with 3 repetitions. During the specific experiment, operate according to the following method:

[0039] A method for remediating soil lead pollution by enriching flower iris, comprising the steps of: ...

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 method for remediating Pb contaminated soil by accumulator flower iris. The method comprises the following steps: (1) variety selection; (2) soil preparation; (3) planting; (4) post-planting management. The Pb contaminated soil is remediated by the accumulator flower iris, the method has the advantages of causing no damage to physical and chemical properties of the soil or causing no secondary pollution, protecting the tillage layer from wind erosion and water erosion, being low in cost and high in operability and the like, is an ideal method for remediating the Pb contaminated soil, and has good market popularization and application values.

Description

technical field [0001] The invention belongs to the technical field of phytoremediation of soil polluted by heavy metals, and in particular relates to a method for remediating soil lead pollution by using enriched flower iris. Background technique [0002] The content of heavy metal pollutants (such as copper, cadmium, lead, etc.) in soil increases year by year with the development of industrialization and urbanization, especially the heavy metal lead is the most harmful to human health and plant growth. Mineral development, industrial production, agricultural production, etc. are the main ways for lead to be discharged into the soil. Due to the adsorption of the soil, lead is easily enriched in the soil. According to statistics, about 7.83×105 tons of lead have been discharged into the soil in the past 50 years, causing heavy metal lead pollution in the soil, which is then enriched by crops and finally put on the table, creating a vicious circle in the body. In view of the...

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
IPC IPC(8): B09C1/10
Inventor 王冬良郁琳洁郜文慧杨义王松
Owner ANHUI AGRICULTURAL UNIVERSITY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com