Activated Alumina
STUDIES ON THE EFFICIENCY OF GRUNDWATER TREATMENT PROCESS WITH ADSORPTION ON ACTIVATED ALUMINA
... One of inorganic sorbents used in water treatment technology is activated alumina. It is recommended by the European Commission to remove inorganic impurities, such as arsenic, fluoride, selenium and ...
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The Use of Activated Alumina and Magnetic Field for the Removal Heavy Metals from Water
... 1995]. Activated alumina is much less likely to be used for water treatment than activated charcoal; however, it is used to remove inorganic contaminants such as fluorides, arsenic, selenium, and ...
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Application of Donnan Dialysis Coupled to Adsorption onto Activated Alumina for Chromium (VI) Removal
... the activated alumina was added, this can be explain by the fact that chromium (VI) was ad- sorbed onto activated alumina in the receiver compart- ment so the Donnan dialysis kinetics ...
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Adsorption of Heavy Metals and Phenol from Aqueous Solution onto Fly Ash as Low Cost Adsorbent: A Review
... as activated carbons, activated alumina was investigated by Roostaei et ...onto activated carbon and reported that adsorption of Cu ions is less sensitive to the presence of other metal ions, ...
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Comparative Study of Batch Adsorption of Fluoride Using Commercial and Natural Adsorbent
... concentration of 202 ppm to obtained an effluent concentration of less than 1.0ppm at the optimized fluid flow rate of 35 liter/hr. Both TDS and alkinity of the treated water decreased during the defluoridation treatment ...
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Removal of arsenic from drinking water
... In 1978 Sorg and Logsdon [3] first started to study the arsenic removal technologies, like coagulation, lime softening, ion exchange, adsorption, reverse osmosis and electrodialysis. Jekel [4] continues their work by ...
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Defluoridation of Water by Various Technique- A Review
... Activated alumina used in domestic defluoridation plant lanched by UNICEF in rural India [5].Carbon-based biomolecules very effective in defluoridationlike, PhylanthusEmblica (Indian Googebry), active seeds ...
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Review paper on regeneration of solid desiccants
... gel, activated alumina, activated charcoal and zeolite can be regenerated at low temperature by using solar energy which can be easily collected by simple flat plate and evacuated tube solar air ...
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Carbon Dioxide Reduction in Gasoline Engine - A Comparative Study
... on activated ZSM-5 Zeolite at 700 rpm and 2500 rpm are ...respectively. Activated charcoal derived from coconut shell shows relatively low efficiency compared to that of the activated alumina ...
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Synthesis and Characterization of Triply Doped Nano Composite Alumina Phospho Silicates SiO2 P2O5 Al2O3 with Er3+, Sm3+ and Yb3+ Ions Prepared by Sol Gel Technique in Two Different Forms Thin Film and Monolith
... of alumina-phospho- silicate as monolith and thin film forms prepared from the same precursor materials, using the tetra-ethoxysilane and triethyl-phosphate ...glasses activated by Sm 3+ , Er 3+ and Yb 3+ ...
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Effect of Self Dispersion Nanosized AlOOH on Microstructure and Wear Resistance of Alumina Ceramic Balls
... into alumina ceramic can also improve ceramic ...of alumina and fluxing agent by utilizing the new mixture techniques of sol homogeneous dispersion and ...crystalline alumina ceramic balls were then ...
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Catalytic reduction of SO2 with CH4 to elemental sulfur: A comparative analysis of alumina, copper-alumina and nickel-alumina catalysts
... selecting alumina as a support for catalyst in this ...the alumina surface is much higher than cerium, and in the solid-gas reactions, the surface area of catalyst is a very important factor; thus, this ...
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Porous Alumina Films with Width Controllable Alumina Stripes
... Nanostructured materials exhibit interesting properties in a wide range of spectra including catalytic activity [1], optical properties [2] and magnetic properties [3]. Nano- porous materials with ordered structures have ...
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An Overview of Machining Process of Alumina and Alumina Ceramic Composites
... Chwan-Huei Tsai et al [10] has developed novel designed laser machining applied the concept of fracture machining element. Using this closed cavity for alumina ceramic can be successfully shaped. The results were ...
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Effect of Alumina Content on the Mechanical Properties of Alumina Particle Dispersion Magnesium
... We then investigated the mechanical properties of hot-pressed discs obtained from these Al2 O3 /Mg powders and found that they have higher hardnesses than AZ91 Mg alloys.7 In the present[r] ...
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Effect of Doped Nickel on the Structural and Electrical Properties of Alumina Prepared by the Chemical Co-precipitation Method
... The structural characteristics of the prepared samples were determined by Fourier- transform infrared spectroscopy (FT-IR, model IR-Affinity, Shimadzu Corporation) in order to study the information concerning the ...
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The Comparison of MgO and TiO2 Additives Role on Sintering Behavior and Microstructures of Reaction-Sintered Alumina-Zirconia-Mullite Composite
... of alumina, zircon mixture and the sintering aids of magnesia and titania at temperatures of 1400 and 1600 ºC for 2 ...of alumina-zirconia-mullite ...the alumina-mullite-zirconia composite by the ...
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The nature and impacts of fines in smelter grade alumina
... sectioned alumina particle to the left in figure 2 provides an example of the effect of the c-axis shrinkage in an agglomerated ...alpha alumina phase results in a difference in the observed charge contrast ...
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Fabrication Of Alumina Crucible
... A detail understanding in fabrication of ceramic product i.e. alumina crucibles through slip casting process will be achieved from the research work. Two types of casting, which are drain casting and solid casting ...
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Modified mesoporous Γ-alumina from kano kaolin in heterogeneous transesterification of rice bran oil
... highest basic sites and when applied for the transesterification of rice bran oil it gave the highest conversion of 81.2%. Although other workers reported higher conversion, as presented in Table 3, however, they used ...
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