Performance of (in)active anodic materials for the electrooxidation of phenolic wastewaters from cashew-nut processing industry

Oliveira, Edna M S; Silva, Francisco R; Morais, Camila Souza de; Oliveira, Thiago M.B.F.; Martínez‐Huitle, Carlos A.; Motheo, Artur J.; Albuquerque, Cynthia Cavalcanti de; Castro, Sonia

doi:10.1016/j.chemosphere.2018.02.037

Cited by 37 publications

(20 citation statements)

References 41 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…active chlorine species, hydroxyl radicals) that can eventually oxidize the organic loading of winery wastewater in the bulk solution. In the work of Oliveira et al (2018) focusing on the electrooxidation of industrial phenolic wastewaters, it was shown that the presence of chloride in the wastewater favored the electrogeneration of strong oxidant species, (mainly hypochlorous acid, but also chlorine, and hypochlorite) and increased the efficiency of the process. The effect of the presence of chloride ion on the oxidation process of various synthetic samples was also studied by Fernandes et al (2016a), who reported that the presence of chlorides enhanced the removal of organic matter and nitrogen.…”

Section: Effect Of Water Matricesmentioning

confidence: 99%

Electrochemical oxidation of butyl paraben on boron doped diamond in environmental matrices and comparison with sulfate radical-AOP

Pueyo

Ormad

Miguel

et al. 2020

Journal of Environmental Management

View full text Add to dashboard Cite

The electrochemical oxidation (EO) of butyl paraben (BP) over boron-doped diamond (BDD) anode was studied in this work. Emphasis was put on degradation performance in various actual water matrices, including secondary treated wastewater (WW), bottled water (BW), surface water (SW), ultrapure water (UW), and ultrapure water spiked with humic acid (HA). Experiments were performed utilizing 0.1 M Na 2 SO 4 as the electrolyte. Interestingly, matrix complexity was found to favor BP degradation, i.e. in the order WW~BW>SW>UW, thus implying some kind of synergy between the water matrix constituents, the reactive oxygen species (ROS) and the anode surface.The occurrence of chloride in water matrices favors reaction presumably due to the formation of chlorine-based oxidative species, and this can partially offset the need to work at increased current densities in the case of chlorine-free electrolytes. No pH effect in the range 3-8 on degradation was recorded. EO oxidation was also compared with a sulfate radical process using carbon black as activator of sodium persulfate. The matrix effect was, in this case, detrimental (i.e. UW>BW>WW), pinpointing the different behavior of different processes in similar environments.

show abstract

Section: Effect Of Water Matricesmentioning

confidence: 99%

Electrochemical oxidation of butyl paraben on boron doped diamond in environmental matrices and comparison with sulfate radical-AOP

Pueyo

Ormad

Miguel

et al. 2020

Journal of Environmental Management

View full text Add to dashboard Cite

show abstract

“…Electrochemical-oxidation is a potent method to decompose and mineralize strong organic compounds [ 25 , 71 , 72 ]. Electrochemical oxidation processes are usually classified as directly and indirectly oxidation models.…”

Section: Electrochemical Technologies For the Treatment Of Wastewatermentioning

confidence: 99%

Recovery of resources from industrial wastewater employing electrochemical technologies: status, advancements and perspectives

et al. 2021

View full text Add to dashboard Cite

In the last two decades, water use has increased at twice the rate of population growth. The freshwater resources are getting polluted by contaminants like heavy metals, pesticides, hydrocarbons, organic waste, pathogens, fertilizers, and emerging pollutants. Globally more than 80% of the wastewater is released into the environment without proper treatment. Rapid industrialization has a dramatic effect on developing countries leading to significant losses to economic and health well-being in terms of toxicological impacts on humans and the environment through air, water, and soil pollution. This article provides an overview of physical, chemical, and biological processes to remove wastewater contaminants. A physical and/or chemical technique alone appears ineffective for recovering useful resources from wastewater containing complex components. There is a requirement for more processes or processes combined with membrane and biological processes to enhance operational efficiency and quality. More processes or those that are combined with biological and membrane-based processes are required to enhance operational efficiencies and quality. This paper intends to provide an exhaustive review of electrochemical technologies including microbial electrochemical technologies. It provides comprehensive information for the recovery of metals, nutrients, sulfur, hydrogen, and heat from industrial effluents. This article aims to give detailed information into the advancements in electrochemical processes to energy use, improve restoration performance, and achieve commercialization. It also covers bottlenecks and perspectives of this research area.

show abstract

“…Electrochemical oxidation can convert many refractory pollutants into easily degradable small molecule substances, and there is almost no secondary pollution in the treatment process (Jagar, Kupka, Vaclavikova, Ivanicova, & Gallios, 2018;Martínez-Huitle & Panizza, 2018). The factors affecting the efficiency of electrochemical oxidation process mainly include electrode materials, electrolytic process parameters, and species of electrolytes (Baddouh et al, 2018;Oliveira et al, 2018; Palma-Goyes, Silva-Agredo, Vazquez-Arenas, Romero-Ibarra, & Torres-Palma, 2018; Salazar, Soledad Ureta-Zanartu, Gonzalez-Vargas, Nascimento Brito, & Martinez-Vargas, 2018). So, many existing studies mainly focus on the development and modification of electrode materials, and optimization of electrolytic process parameters (Lan, Coetsier, Causserand, & Serrano, 2018;Singla, Verma, & Sangal, 2018) and so on.…”

Section: Electrochemical Oxidationmentioning

confidence: 99%

Emerging pollutants—Part II: Treatment

Liu

Zhang

Chang

2019

Water Environment Research

View full text Add to dashboard Cite

Recently, emerging pollutants (EPs) have been frequently detected in urban wastewater, surface water, drinking water, and other water bodies. EPs mainly usually include pharmaceuticals and personal care products, endocrine-disrupting chemicals, antibiotic resistance genes, persistent organic pollutants, disinfection by-products, and other industrial chemicals. The potential threat of EPs to ecosystems and human health has attracted worldwide attention. Therefore, how to treat EPs in various water bodies has become one of the research priorities. In this paper, some research results on treatment of EPs published in 2018 were summarized.

show abstract

Performance of (in)active anodic materials for the electrooxidation of phenolic wastewaters from cashew-nut processing industry

Cited by 37 publications

References 41 publications

Electrochemical oxidation of butyl paraben on boron doped diamond in environmental matrices and comparison with sulfate radical-AOP

Electrochemical oxidation of butyl paraben on boron doped diamond in environmental matrices and comparison with sulfate radical-AOP

Recovery of resources from industrial wastewater employing electrochemical technologies: status, advancements and perspectives

Emerging pollutants—Part II: Treatment

Contact Info

Product

Resources

About