Patent · US Active

Process for eliminating or reducing persistent organic pollutants contained in particles

US9029623B2 · kind B2 · utility

5Cited by

1References

13Claims

0Family size

Assignee

TONJI UNIVERSITY · CN

Inventors

Dezhen Chen · Longbeilingcun, CN
Yuyan Hu · Shanghai, CN
Pengfei Zhang · Hong Kong, CN
Lijie Yin · Shanghai, CN

Key dates

Filing date	Oct 28, 2013
Grant date	May 12, 2015
Priority date	—
Expiry date	Oct 28, 2033

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S588/901
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

A treatment process of persistent organic pollutants contained in particles is provided. Said process includes reacting persistent organic pollutant in particles under hydrothermal conditions in the presence of Fe2+ and Fe3+. Several beneficial effects can be achieved, including 1) no other additive is needed during the reaction process; 2) Fe2+ and Fe3+ are safe, cheap and extensive sources; 3) because Fe2+ and Fe3+ are dissolved, they can fully disperse into particles, and fully contact can be achieved, thus obtaining a decomposition rate no less than 70% of the persistent organic pollutants is under subcritical conditions.

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