2007). However, the latter case is quite rare, so waste solvents are usually disposed of by incineration in facilities built for this purpose or in existing hazardous waste incinerators (Cheremisinoff 1992c). The calorific value of halogen-free solvent wastes (without water or with low water ...
are carefully managed, all of the procedures described can result in products with the appropriate shape, allowing for a wide variety of hybrid materials. Tin oxide nanostructures have been proven to have antibacterial and anticancer effects, however due to their cut-off wavelength, they have never...
The P-type GaN nanostructure was deposited onto the porous-silicon substrate through the drop-casting method for NO2 gas-sensor fabrication. Ablation was performed in ethanol using two laser wavelengths, namely, 532 and 1064 nm. The XRD pattern showed a high and sharp peak at 2θ= 29.49°,...
which is detrimental to product quality. Bacteria in the pipework, e.g.,LactobacillusorPediococcus, can be re-introduced due to, e.g., pressure fluctuations leading to contamination of the fermenter, which can cause off-flavors in the beer. In larger breweries...
Moreover, the carbon-based materials have certain drawbacks such as lack of reactivity, high pressure drop, low exposure area, low adsorption capacity etc. Thus, detoxifica- tion of CWAs over the protective materials/filters presents a major technological challenge and hence there is a pressing ...
The waste sludge sample has been kept in the refrigerator at 4 °C and initial analyses were carried out immedi- ately. The characteristics of the initial wastewater secondary sludge are provided in Table 1. Measurements were carried out in duplicates and mean values were reported. The ...
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As discussed previously, this drop is related to the depletion of the O3 and consequently, OH, concentrations in the presence of chlorine, which results in a decrease in the oxidation rate of Hg(0) by OH and O3. Finally, when only bromine is present (NoCl), the elemental mercury ...
a piezoelectric semiconductor ZnO is subjected to a tensile strain, the energy bands near the electrolyte increase, where the valence band (VB) is closer to the oxidation potential (Eox). Thus, holes are sufficiently active to drive the oxidation process, and electrons on the conductor band (CB...
(yttrium oxide) which kicked off a chain of discoveries of new elements. Although originally named ytterbite, the new black mineral found in Ytterby was later renamedgadolinitein honour of Gadolin. It turned out, however, that yttria samples weren’t just yttrium oxide, but contained other ...