نتایج جستجو برای: red mud rm
تعداد نتایج: 173265 فیلتر نتایج به سال:
Bauxite residue (red mud), which is an industrial byproduct, contains valuable trace elements. Solid NH4Cl was used as a chlorinating agent during the microwave heating of red mud to convert elements into soluble metal chloride. Red heated using ovens under various conditions (i.e., with addition solid and range output powers times). Leaching tests were then conducted deionized (DI) water on mi...
Trawl surveys were conducted in 2000 and 2001 to examine patterns of distribution and abundance of postsettlement red snapper (Lutjanus campechanus) on a shell bank, Freeport Rocks Bathymetric High (FRBH), in the northwestern Gulf of Mexico. In addition, otolith-based methods were used to determine age, hatch-date, growth and mortality of new recruits associated with FRBH. Date and region were ...
The adsorption of phosphorus (P) onto three industrial solid wastes (fly ash, red mud and ferric-alum water treatment residual (FAR)) and their modified materials was studied systematically via batch experiments. Compared with two natural adsorbents (zeolite and diatomite), three solid wastes possessed a higher adsorption capacity for P because of the higher Fe, Al and Ca contents. After modifi...
An Mn/Ce@red mud (RM) catalyst was prepared from RM via a doping–calcination method. Scanning electron microscopy, X-ray diffraction, and photoelectron spectroscopy were used to characterize the surface morphology, crystal elemental composition of Mn/Ce@RM catalyst, respectively. In addition, preparation catalytic ozonation conditions optimized, mechanism discussed. Lastly, fuzzy analytic hiera...
The present research includes the safe disposal of lead-acid batteries slag using waste materials such as red mud and fly ash. The aim of this study is to investigate the adsorption of lead removal from lead acid-batteries slag on red mud and fly ash using 2 full factorial design. The combined effects of adsorbent amount, temperature, adsorbent type and leachate solution on the lead removal ads...
Due to the ever-increasing demand of world economy for aluminum, its alloys and compounds, production this metal is increasing annually throughout world. This leads an increase in industrial alumina, which obtained from bauxite ore Bayer process. After recovering bulk aluminum ore, there remains a residue highly alkaline toxic waste, also called residues (tailings) or red mud (RM). About 140-15...
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