Optimizing treatment of alcohol vinasse using a combination of advanced oxidation with porous α-Fe2O3 nanoparticles and coagulation-flocculation

One-pot hydrothermal synthesis of FeNbO4 microspheres for effective sonocatalysis

“…33-0664). 39 Besides, the two peaks of FN9 at 24.21 and 30.081 are attributed to the (012) and (220) crystallographic planes of Fe 2 O 3 , indicating the presence of this crystalline phase in this sample. The sample FN9 shown a 93.6%, and 6.4% of FeNbO 4 and Fe 2 O 3 phases, respectively.…”

Mixed oxides with corundum-type structure obtained from recycling can seals as paint pigments: color stability

“…The phase mixture observed in sample 2 ( Figure 1c ) consists of α-Al 2 O 3 [96-900-8082] and hematite (α-Fe 2 O 3 ) [96-591-0083]. The indexing of the hematite phase indicates a rhombohedral structure [ 18 ]. The same crystallographic charts were indexed for materials with 5 and 20 wt % of coloring ions (Figure S1, Supporting Information File 1 ).…”

Modeling and Optimization of Coagulation-Flocculation Process to Remove High Phosphate Concentration in Wastewater from a Metal-Mechanic Industry

“…Several techniques have been employed to remove phosphates from wastewater such as coagulationocculation (CF), crystallization, adsorption or magnetic separation (Gong and Zhao, 2014; Lai et al 2020); however, the CF process is the leading technology for removing phosphates from wastewater (Morse et al 1998; Sibiya et al 2022); mainly due to its easy operation, relatively simple design, low cost and high e ciency (Ozairi et al 2020;Sakhi et al 2020). Coagulation consists of adding an agent, commonly trivalent metal ions or polymerized species to the wastewater to form micro-ocs that are generated by rapid mixing (Watanabe, 2017;Mahmoudabadi et al 2022;Okolo et al 2021). After that, Flocculation, also involves adding a chemical specie, mainly synthetic or organic polymers, so that the primary particles created in the coagulation process, form aggregates that will have a considerable volume and weight that can later be separated from the water through a sedimentation process (Al-Risheq et al 2022; Singh and Kumar, 2020).…”