Author
Marta Pazos
Other affiliations: University of Minho
Bio: Marta Pazos is an academic researcher from University of Vigo. The author has contributed to research in topics: Adsorption & Catalysis. The author has an hindex of 39, co-authored 155 publications receiving 4523 citations. Previous affiliations of Marta Pazos include University of Minho.
Papers published on a yearly basis
Papers
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TL;DR: An up-to-date collation of the current knowledge of the heterogeneous electro-Fenton process is introduced, highlighting recent advances in the use of different catalysts such as iron minerals, prepared catalysts by the load of metals in inorganic and organic materials, nanoparticles, and the inclusion of catalysts on the cathode.
256 citations
TL;DR: The foremost principles to carry out the electroremediation of soils contaminated with PAHs are described, just like the different alternatives to improve the Electroremediations ofPAHs and also the new methodologies of PAhs removal by using hybrid technologies are described.
192 citations
TL;DR: A brief review of recent progress in the research and practical application of biochar with a special emphasis on its potential to reduce the pollutants present in wastewater or to render them harmless.
181 citations
TL;DR: In this paper, the effect of key parameters (iron dosage and pH) that play an important role in this process was investigated for Lissamine Green B decoloration in batch mode.
148 citations
TL;DR: The suitability of the electrochemical process to effectively decolourise wastewaters from dyeing process was revealed and the simplest dye molecules were attacked firstly, followed by dyes with more complex chemical structures.
147 citations
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Journal Article•
28,685 citations
TL;DR: In this paper, a review of the electrochemical methods used at lab and pilot plant scale to decontaminate synthetic and real effluents containing dyes, considering the period from 2009 to 2013, as an update of our previous review up to 2008.
Abstract: As the environment preservation gradually becomes a matter of major social concern and more strict legislation is being imposed on effluent discharge, more effective processes are required to deal with non-readily biodegradable and toxic pollutants. Synthetic organic dyes in industrial effluents cannot be destroyed in conventional wastewater treatment and consequently, an urgent challenge is the development of new environmentally benign technologies able to mineralize completely these non-biodegradable compounds. This review aims to increase the knowledge on the electrochemical methods used at lab and pilot plant scale to decontaminate synthetic and real effluents containing dyes, considering the period from 2009 to 2013, as an update of our previous review up to 2008. Fundamentals and main applications of electrochemical advanced oxidation processes and the other electrochemical approaches are described. Typical methods such as electrocoagulation, electrochemical reduction, electrochemical oxidation and indirect electro-oxidation with active chlorine species are discussed. Recent advances on electrocatalysis related to the nature of anode material to generate strong heterogeneous OH as mediated oxidant of dyes in electrochemical oxidation are extensively examined. The fast destruction of dyestuffs mediated with electrogenerated active chlorine is analyzed. Electro-Fenton and photo-assisted electrochemical methods like photoelectrocatalysis and photoelectro-Fenton, which destroy dyes by heterogeneous OH and/or homogeneous OH produced in the solution bulk, are described. Current advantages of the exposition of effluents to sunlight in the emerging photo-assisted procedures of solar photoelectrocatalysis and solar photoelectro-Fenton are detailed. The characteristics of novel combined methods involving photocatalysis, adsorption, nanofiltration, microwaves and ultrasounds among others and the use of microbial fuel cells are finally discussed.
3,112 citations
1,837 citations
TL;DR: In this article, an exhaustive review on the treatment of various synthetic and real wastewaters by five key EAOPs, i.e., anodic oxidation (AO), anodic oxidation with electrogenerated H 2 O 2, electro-Fenton (EF), photoelectro-fenton (PEF), alone and in combination with other methods like biological treatment, electrocoagulation, coagulation and membrane filtration processes.
Abstract: Over the last decades, research efforts have been made at developing more effective technologies for the remediation of waters containing persistent organic pollutants. Among the various technologies, the so-called electrochemical advanced oxidation processes (EAOPs) have caused increasing interest. These technologies are based on the electrochemical generation of strong oxidants such as hydroxyl radicals ( OH). Here, we present an exhaustive review on the treatment of various synthetic and real wastewaters by five key EAOPs, i.e., anodic oxidation (AO), anodic oxidation with electrogenerated H 2 O 2 (AO-H 2 O 2 ), electro-Fenton (EF), photoelectro-Fenton (PEF) and solar photoelectro-Fenton (SPEF), alone and in combination with other methods like biological treatment, electrocoagulation, coagulation and membrane filtration processes. Fundamentals of each EAOP are also given.
1,457 citations