Patent · US Active

Nanobioremediation method for soil in high-concentration polycyclic aromatic hydrocarbon (PAH)-contaminated site

US11278944B2 · kind B2 · utility

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Key dates

Filing dateSep 29, 2020
Grant dateMar 22, 2022
Priority date
Expiry dateSep 29, 2040

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB09C2101/00
  • WIPO fieldOther special machines
  • WIPO sectorMechanical engineering

Abstract

A nanobioremediation method is for soil in a high-concentration polycyclic aromatic hydrocarbon (PAH)-contaminated site. The method includes adding a carbon nanomaterial and a base fertilizer to soil in a high-concentration PAH-contaminated site, evenly broadcast sowing alfalfa seeds to the contaminated soil, and keeping the soil moisture content at 60% of the field moisture capacity, and when the alfalfa grows to the flowering or maturity stage, harvesting and removing the plants from the contaminated soil.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.