Nájera-Martínez, Minerva Pérez-Cruz, Anabel Dzul-Caamal, Ricardo Vega-López, Armando
Published in
Water, Air, & Soil Pollution
Some evidences about the toxicity of heavy metals on phytoplankton communities have been documented; notwithstanding, a little of information about the toxic effects elicited by these toxicants prevails. The study aim was to evaluate the relationships between heavy metals on freshwater phytoplankton communities (FWPC) with biomarkers of the oxidati...
Carrera-Cevallos, Jeanette Verónica Prato-Garcia, Dorian Espinoza-Montero, Patricio Javier Vasquez-Medrano, Ruben
Published in
Water, Air, & Soil Pollution
Kinetic and environmental aspects related with the mineralization of a commercial glyphosate (GP) formulation in a pre-pilot-scale reactor were assessed. Assays were performed at an acidic pH using Na2SO4 as support electrolyte at five different current densities. GP removal can be achieved in 60 min and is not dependent on the applied current dens...
Fernandes, Julia Oliveira Bernardino, Cassiano Augusto Rolim Mahler, Claudio Fernando Santelli, Ricardo Erthal Braz, Bernardo Ferreira Borges, Renata Coura da Cunha Veloso, Márcia Cristina Romeiro, Gilberto Alves Cincotto, Fernando Henrique
Published in
Water, Air, & Soil Pollution
Biochar produced from different raw materials by pyrolysis have been utilized as an alternative material for organic compound adsorption. This study aims to evaluate the use of biochar generated from sugar cane filter cake, after pyrolysis treatment at 380 °C, in the adsorption process of thiamethoxam pesticide in wastewater. The biochar was studie...
Salemi, Luiz Felippe da Costa Silva, Robson Willians Fernandes, Rafael Pires Fracassi, Fabiana de Camargo, Plínio Barbosa de Moraes, Jorge Marcos Martinelli, Luiz Antonio
Published in
Water, Air, & Soil Pollution
Extreme climatic events may be translated into a higher frequency of both dry and wet years. Frequent droughts pose a challenge to water supply in terms of both quantity and quality. In order to cope with this, there has to be a documentation on the concentration of chemicals in water during such events. The southeast region of Brazil experienced a...
Zhang, Hongling Shi, Mingxing Xia, Mingzhu FengyunWang, Zhao, Feng
Published in
Water, Air, & Soil Pollution
Previous researches investigated the adsorption properties and mechanism of clay minerals on antibiotic pharmaceuticals and personal care products (PPCPs) via batch adsorption experiments and X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FTIR) characterization, but many PPCPs exhibit different ionization states under differen...
Zhang, Yong Chen, Kejin Lv, Chao Wu, Taijun Wen, Yonglin He, Hua Yu, Sheng Wang, Li’ao
Published in
Water, Air, & Soil Pollution
The utilization of landfill gas from municipal waste landfills has become a hot research topic. The separation and purification of carbon dioxide (CO2) and methane (CH4) from landfill gas has attracted widespread attention. In this study, ethanolamine (MEA), diethanolamine (DEA), and diethylenetriamine (DETA) were used to modify silica gel to impro...
Akerman, T. Spiers, G. Beckett, P. Anderson, J. Caron, F.
Published in
Water, Air, & Soil Pollution
Fresh snow and lichens (Cladonia rangiferina) were collected along two ~300-km transects in a regional survey around two smelter areas in Northern Ontario, i.e., the Sudbury and Timmins areas, in 2009–2010, as a part of a monitoring program. The samples were analyzed for Pb isotope ratios in snow from 47 sites, and in lichens from 28 sites, for bac...
Macías, Mariana Rodríguez de San Miguel, Eduardo
Published in
Water, Air, & Soil Pollution
Efficient Ni (II) transport through a polymer inclusion membrane (PIM) was achieved. A central composite design (DCC) coupled to a Derringer’s desirability function (DF) was used to optimize membrane composition using Kelex 100 (HQ) as carrier, cellulose triacetate (CTA) as polymer support, and tris(2-ethylhexyl) phosphate (TEHP) as plasticizer. Th...
Demoliner, Meriane Gularte, Juliana Schons Girardi, Viviane Eisen, Ana Karolina Antunes de Souza, Fernanda Gil Staggemeier, Rodrigo Henzel, Andréia Spilki, Fernando Rosado
Published in
Water, Air, & Soil Pollution
This study aims to expand the knowledge about fecal contamination by humans and animals using Adenovirus (AdV) as bioindicators in different water sources from rural areas, to evaluate the viral infectivity, and to compare the different techniques used to detect the Human mastadenovirus (HAdV). For that, 124 samples were collected (86 from groundwa...
Vieira, Tainara Becegato, Valter Antonio Paulino, Alexandre Tadeu
Published in
Water, Air, & Soil Pollution
The aim of this work was to study the equilibrium isotherms, kinetics, and thermodynamics of the adsorption of 2,4-dichlorophenoxyacetic acid to a chitosan-based hydrogel and chitosan/magnetite-based composite hydrogel containing 1.0% (w/w) magnetite. The hydrogel synthesis and adsorption processes were confirmed by Fourier transform-infrared spect...
