A method for remediating polycyclic aromatic hydrocarbon-contaminated soil with rush grass
A technology for polycyclic aromatic hydrocarbons and polluted soil, applied in the restoration of contaminated soil, etc., can solve problems such as polycyclic aromatic hydrocarbons soil pollution, achieve good environmental restoration effects, improve soil fertility, and improve soil structure
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0032] The selected object is the soil around a certain iron and steel plant, and a 5m×5m plot is selected. The land in the plot is broken and plowed, and the ground is leveled with a distance of 6cm to transplant rush seedlings. The content of polycyclic aromatic hydrocarbons in the soil is measured, and the harvested aerial parts are harmlessly treated. In the coming year, replant according to the growth of rushes, and repeat the above steps. After one year of phytoremediation, the total content of polycyclic aromatic hydrocarbons in the soil was reduced by 11.5%, after two years of phytoremediation, the content of polycyclic aromatic hydrocarbons in the soil was reduced by 33%, and after three years of phytoremediation, the total content of polycyclic aromatic hydrocarbons in the soil was reduced by 50%.
Embodiment 2
[0034] The object to be selected is the soil around a certain coal-fired field, and a plot of 5m×5m is selected. The land in the plot is broken and plowed, and the ground is leveled, with a distance of 6cm to transplant rush seedlings. After the plants mature, the aboveground part is harvested, leaving 3cm of stubble. The content of polycyclic aromatic hydrocarbons in the soil was also measured, and the harvested aerial parts were harmlessly treated. In the coming year, replant according to the growth of rushes, and repeat the above steps. After one year of phytoremediation, the total content of polycyclic aromatic hydrocarbons in the soil was reduced by 20.2%, after two years of phytoremediation, the content of polycyclic aromatic hydrocarbons in the soil was reduced by 30.4%, and after three years of phytoremediation, the total content of polycyclic aromatic hydrocarbons in the soil was reduced by 46.83%.
Embodiment 3
[0036] The selected object is the soil around a certain urban area, and a 5m×5m plot is selected. The land in the plot is broken and plowed, and the ground is leveled, with a distance of 6cm to transplant rush seedlings. The content of polycyclic aromatic hydrocarbons in the soil, the above-ground parts harvested for harmless treatment. In the coming year, replant according to the growth of rush grass, and repeat the above steps. After one year of phytoremediation, the total content of polycyclic aromatic hydrocarbons in the soil is reduced by 16.3%. After two years of phytoremediation, the content of polycyclic aromatic hydrocarbons in the soil is reduced by 32.7%. After remediation, the total content of PAHs decreased by 59.2%.
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
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