Removal of sulfadiazine by ferrate(VI) oxidation and montmorillonite adsorption—Synergistic effect and degradation pathways

Abstract

Highlights First reporting the removal of sulfadiazine by ferrate(VI) oxidation and montmorillonite adsorption  Positive synergetic effect of a combined oxidation/adsorption process on the SDZ treatment was confirmed  Degradation of SDZ by ferrate(VI) fitted in pseudo-order equation and the kinetic rate constant was derived  Pathways of sulfadiazine's degradation by ferrate(VI) and potential oxidation product formation were explored

Oxidation of chloroquine drug by ferrate: Kinetics, reaction mechanism and antibacterial activity

“…The charge carried by N-diethylamine on CLQ was gradually transferred by Fe(VI) in the single electron to form mono N-oxide (OP1) and Fe(III). The reaction process was similar to the previous studies on sulfadiazine by Fe(VI) [51] . Besides, based on the higher 2FED 2 HOMO value of N(2), electrophilic reactions were prone to occur at the atoms with higher 2FED 2 HOMO values [48] .…”

Sulfadiazine and Nitrogen Removal Performance and Mechanisms of a Saline-Resistant Strain of Acinetobacter sp. RT-6

“…that could effectively remove ammonia-N under aerobic conditions, with minimal nitrite-N and nitrate-N accumulation [33]. However, this strain only removed 55% of sulfonamides in 300 h [34,35]. When compared to the other research, strain RT-6 exhibits superior sulfonamide antibiotic degradation efficiency and is capable of removing ammonia nitrogen and total nitrogen simultaneously under aerobic conditions.…”

Impacts of environmental issues on health and well-being: a global pollution challenge

“…We listened to amazing plenary talks by Joanna Burger (USA) on the temporal trends in heavy metals in the US Atlantic Coast Estuaries (Ostrom et al 1999 ; Burger 2019 ) and by Elena Rodica Ionescu (France) on toxicity and biosensing of environmental pollutants (Ionescu et al 2006 ; Zhou et al 2019 ). Jia-Qian Jiang (UK) spoke about water and wastewater treatments using double hydroxide materials (Wang et al 2019 ; Jiang and Lloyd 2002 ), Shin Takahashi (Japan) delighted us with a presentation about the persistence of organic pollutants in the Asia Pacific Region (Monirith et al 2003 ; Anh et al 2019 ), and Jose Luis Gomez-Ariza (Spain) captivated us with a talk combining analysis and health problems in relation to metallomics and metabolomics in environmental metal toxicity assessment (Rodriguez-Moro et al 2020 ; Gómez-Ariza et al 2000 ). Making this edition even more extraordinary was the presence of outstanding keynote speakers, namely Ana Luisa Fernando (Portugal) (Souza and Fernando 2016 ), Erika Kothe (Germany) (Haferburg and Kothe 2007 ), Binoy Sarkar (UK) (Sarkar et al 2010 ), Yongchun Zhao (China) (Xin et al 2020 ), Jerzy Jozef Zajac (France) (Muller et al 2019 ), Tamara Garcia Barrera (Spain) (Callejón-Leblic et al 2020 ), Michael Gochfield (USA) (Gochfeld 2003 ; Burger et al 2020 ), and Elisabete Oliveira (Portugal) (Marcelo et al 2020 ; Oliveira et al 2018 ), who explained their research covering topics as diverse as nanoparticles and food, antibiotic resistance and heavy metals, environmental clean-up applications of clay minerals, power plant wastewater metal analysis, metabolomics and the role of selenium, mechanisms of mercury and selenium toxicity, and the use of mesoporous nanomaterials and chemosensors for removing toxic agents and emerging contaminants.…”