The first version of the machine learning greybox model i-Melt was trained to predict latent and observed properties of K2O-Na2O-Al2O3-SiO2 melts and glasses. Here, we extend the model compositional range, which now allows accurate predictions of properties for glass-forming melts in the CaO-MgO-K2O-Na2O-Al2O3-SiO2 system, including melt viscosity ...
Published in Journal of environmental management
Hazardous waste incineration fly ash (HFA) is considered a hazardous waste owing to the high associated concentrations of heavy metals and soluble salts. Hence, cost effective methods are urgently needed to properly dispose HFA. In this study, geopolymers were prepared by alkali-activation technology to stabilize and solidify heavy metals in HFA. I...
Published in Water, Air, & Soil Pollution
The presence of antibiotics such as oxytetracycline (OTC) in water and wastewater is considered an environmental problem and, consequently, their elimination is an important topic. The present research shows the removal of OTC from aqueous medium using a quartz-based natural aluminosilicate (Q) and carbon nanotubes (CNTs) modified with zinc nanopar...
Geopolímeros são materiais formados por aluminossilicatos e soluções alcalinas altamente concentradas, sintetizados à temperatura ambiente. Aluminossilicatos estão presentes em de diversos resíduos sólidos da indústria do alumínio e demais atividades mineradoras que podem ser reaproveitados como matéria-prima de geopolímeros. O presente projeto tev...
Les céramiques poreuses font l’objet d’une très grande attention dans le domaine de l’industrie car elles sont utilisées pour une grande variété d’applications, telles que l’isolation thermique, les membranes filtrantes, les catalyseurs, les échangeurs thermiques, les bioréacteurs et les réfractaires. Dans le cadre d’une fonction d’isolation thermi...
Published in Physics and Chemistry of Minerals
The synthetic nosean- and haüyne-like aluminosilicates with (MoO4)2− and (WO4)2− extra-framework anions were synthesized in H2O-bearing systems (3 kbar, 750 °C) and studied by means of electron microprobe analysis, Raman spectroscopy, powder and single-crystal X-ray diffraction. The nosean-like phase contains up to 10.6 wt% MoO3 and up to 5.1 wt% W...
Published in Environmental Sciences Europe
BackgroundPhytotoxins of various classes and origin are often found in their cationic form in the soil environment and thus, their overall soil behavior may be strongly affected by all geosorbents presenting cation exchange capacity (CEC). In addition to soil organic carbon (SOC), clays may exhibit great potential as sorbents for cationic organic c...
Abstract Introduction. This article reports the synthesis and characterization of the glass-ceramic powders of the Li2OAl2O3SiO2 (LAS) system, doped with 0.5% and 1% w / w copper oxide (CuO), as a first stage thinking about its subsequent evaluation as a thermoluminescent material (TL) and its possible application as a TL dosimeter. Objective. To e...
Published in Water, Air, & Soil Pollution
Oxytetracycline (OTC) is listed as an emerging contaminant due to the adverse effects that it has on human health and the environment. Being a broad spectrum antibiotic, OTC is widely used and is found in large concentrations in wastewater. Advanced wastewater treatment is an effective method for the removal of this pollutant; however, these tertia...
Published in SN Applied Sciences
We obtained aluminosilicates of sodium and potassium from alkaline hydrolysate of rice straw and husk. Chemical, phase composition of the samples was determined, and nature of the functional groups was studied. We presented results of studying acid-base properties of aluminosilicates’ surface by pH-metry and Hammett methods. We built distribution c...
