Remediation of soils contaminated with pesticides by using supercritical extraction (SCE) coupled with ultrasounds

• Type: Article in International Conference Proceedings Book
• Date: 2015

Authors

Teresa Augusto (Author) Other; Paulo Aloísio Augusto (Author) Other; Domingos Barbosa (Author) FEUP

Conference proceedings International

Title: FILTECH 2015

International Conference & Exhibition for Filtration and Separation Technology

Cologne, Germany, 24 a 26 de fevereiro de 2015

Scientific classification

FOS: Engineering and technology > Chemical engineering

CORDIS: Technological sciences > Engineering > Chemical engineering

Associated Projects

LEPAE/CEFT - RL2 - (Bio) Chemical Engineering: Multi-Scale Approaches for Sustainable Environment and Health

LEPABE - Laboratório de Engenharia de Processos, Ambiente, Biotecnologia e Energia

Other information

Abstract (EN): The aim of this work is to address the problem of remediation of soils contaminated with pesticides by using an innovative technique that is friendlier to the environment, and which maintains the soil structure. This technique consists on the application of supercritical extraction (SCE) with carbon dioxide coupled with ultrasound. This innovative method has the advantage of allowing the use of solvents such as CO2, and avoiding the need for organic co-solvents, which is an important drawback to the application of SCE to soil remediation. The obtained recovery for atrazine is higher than the corresponding values for supercritical extraction with CO2, and similar to the recoveries obtained when organic cosolvents are used.

Language: English

Type (Professor's evaluation): Scientific