Enhanced combination method for phytoremediation of petroleum contaminated soil by Impatiens balsamina L. associated with the indigenous microorganisms
US9333382B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Apr 13, 2014 |
| Grant date | May 10, 2016 |
| Priority date | — |
| Expiry date | Apr 13, 2034 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA62D2101/20
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A plant-microorganism combined method for phhytoremediation of organic contaminated soil; i.e., an ornamental plant (Impatiens balsamina L.)—microorganisms (petroleum hydrocarbon degrading mixed microbes) combined method for enhanced phytoremediation of petroleum contaminated soil is disclosed. The inoculated petroleum degrading mixed microbes can not only degrade contaminants in soil directly but also secretes chemical substances which are helpful to relieve the toxic effects on the Impatiens balsamina L. In return, the Impatiens balsamina L. releases photosynthesis products into the soil, so as to enhance microbial activity and quantity, and assist the microorganisms in degrading target contaminates more effectively and efficiently. Repeating the processes mentioned above is able to continuously reduce petroleum hydrocarbon contaminants in the soil until the residual content of contaminants meets the environmental safety standard.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.