Please use this identifier to cite or link to this item: https://hdl.handle.net/10216/108958
Author(s): barbosa, d
augusto, pa
Teresa Augusto
paz, e.
rico, j.
iglesias, r.
marcos, j.
merchán, l.
estévez, a.m.
Title: Exploring magnetism as a way to decontaminate wastewater and leacheates
Issue Date: 2017-11-26
Abstract: The treatment of leachates as pollutant concentrated wastewaters, is still an open issue, and although several different methods are applied for this goal, we are still far away from obtaining low-cost and at the same time efficient processes. Even for wastewater and water, removal of specific contaminants is far from being economical.Magnetic particles (nano and micron-sized), namely those based on iron oxides, have shown good sorption capabilities, which may be useful for removal/concentration of pollutants/nutrients. Joining this sorption capabilities with their magnetic properties, and with potential functionalization, makes the application of these particles for wastewater or leachate treatment very interesting, specially as we may use magnetic separation methods to further remove, recover and reuse these particles.In this work we have tested three different kind of magnetic particles, in order to remove/concentrate organic matter (COD reduction), nitrogen (total nitrogen) and phosphorous (total phosphorous), during several time periods, being successful in removing between 4 and 65% of them, depending on the controlled parameter, sorption time and type of particle.We have applied the same particles in three different water streams with different degrees of pollution, so we would be able to analyze the pollutant concentration influence; these being water, wastewater and leachate. In Figure 1 we present as example the case of removal for wastewater resultant from sludge centrifugation, by one of the three different magnetic particle systems we have used.
Subject: Engenharia química, Engenharia do ambiente, Engenharia química
Chemical engineering, Environmental engineering, Chemical engineering
Scientific areas: Ciências da engenharia e tecnologias::Engenharia química
Engineering and technology::Chemical engineering
Ciências da engenharia e tecnologias::Engenharia do ambiente
Engineering and technology::Environmental engineering
URI: https://repositorio-aberto.up.pt/handle/10216/108958
Related Information: info:eu-repo/grantAgreement/FCT - Fundação para a Ciência e Tecnologia/Projetos Estratégicos/UID/EQU/00511/2013 - POCI-01-0145-FEDER-006939/Laboratório de Engenharia de Processos, Ambiente, Biotecnologia e Energia/LEPABE
info:eu-repo/grantAgreement/Comissão de Coordenação e Desenvolvimento Regional do Norte/P2020|Norte2020-Projetos Integrados ICDT/NORTE-01-0145-FEDER-000005/LEPABE-2-ECO-INNOVATION/LEPABE-2-ECO-INNOVATION
Document Type: Livro de Atas de Conferência Internacional
Rights: restrictedAccess
Appears in Collections:FEUP - Livro de Atas de Conferência Internacional

Files in This Item:
File Description SizeFormat 
229701.pdf
  Restricted Access
Apresentação500.72 kBAdobe PDF    Request a copy from the Author(s)


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.