Hyper-Rayleigh scattering (HRS) spectra were measured for liquid solutions of C6H5NO2 and CH3NO2 at T=300 K. The depolarized HRS spectra at small frequency shift are dominated by two components due to reorientation of the nitrobenzene molecules. One is a Lorentzian with spectral width nu1=0.16-0.45 cm(-1) and corresponding orientation relaxation time tau=33-12 ps. The second component is a narr...

The primary objective of this research study was to test the applicability and optimize the design parameters of a system of biological aerated filters in order to obtain an optimal effluent from the citrus industry, which would allow its drainage into the municipal sewer system. Expanded clay was used as a support material. After experimenting with both countercurrent and cocurrent flows as we...

Biological molecules and molecular self-assemblies are promising templates to organize well-defined inorganic nanostructures. We demonstrate the ability of a self-assembled three-dimensional crystal template of helical actin protein filaments and lipids bilayers to generate a hierarchical self-assembly of quantum dots. Functionnalized tricystein peptidic quantum dots (QDs) are incorporated duri...

Pyrolysis coupled to either thermal or catalytic cracking of mattress foam waste was performed in a laboratory-scale facility consisting fixed-bed reactor joined tubular reactor. The results showed great potential for the production syngas specially at high temperatures. Particularly, fixing 800 °C reactor, CO and CH4 rich gas with remarkable amount H2 obtained. addition catalysts (dolomite, ol...

we evaluated the efficacy of a full-scale combined biophysicochemical system for treatingmolasses-based bioethanol wastewater in terms of organic substances, nutrient, and dark brown color removal. the main organic removal unit, i.e., the upflow anaerobic sludge blanket (uasb) reactor, achieved 80.7% removal and 4.3 nm3 methane production per cubic meter of wastewater with a hydraulic retention...

A nozzle inclination angle and swirl combustor inside the low-tar biomass (LTB) gasifier reactor were tested optimized to evaluate these effects on tar reduction design tar-free producer gas. The process is mainly based concept of a swirling flow created by angle, with 55° radial line, allowing good mixing between pyrolysis gases gasifying agents. separate has large internal annular reverses zo...

we evaluated the efficacy of a full-scale combined biophysicochemical system for treatingmolasses-based bioethanol wastewater in terms of organic substances, nutrient, and dark brown color removal. the main organic removal unit, i.e., the upflow anaerobic sludge blanket (uasb) reactor, achieved 80.7% removal and 4.3 nm3 methane production per cubic meter of wastewater with a hydraulic retention...

While palm oil mill effluent (POME) from different sources will have varying characteristics due to the process flows in mills, efficient monitoring and performance evaluation of anaerobic digesters POME treatment are crucial ensure stable biogas production with minimal operational problems. Therefore, this study aims evaluate compare performances in-ground lagoon under mesophilic conditions fo...

Abstract Purpose To characterize and optimize the productivity of melanin using an extremotolerant actinobacterium, Dietzia schimae NM3, for first time. Methods An extracellular brown pigment produced by D. NM3 in nutrient broth cheese whey medium adding L-tyrosine. The extracted was analyzed UV-visible, HPLC, FTIR assays. radical scavenging activity (by DPPH) sun protection factor (SPF) were m...