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The abatement of NH 3 from waste streams has become an important environmental issue. Selective catalytic oxidation (SCO) of NH 3 to N 2 has emerged as a potential technology for taking care of NH 3 slips and NH 3 in waste streams. In this work, we describe the catalytic activity of Fe-zeolite...
Chelating sorbents with 8-hydroxyquinoline ( IVa ), 8-hydroxyquinoline-5-sulfonic acid ( IVb ), and tris(2-aminoethyl)amine ( VI ) ligands immobilized on macroporous methacrylate matrix were prepared and saturated with Co(II), Cu(II), and Fe(II). All these chelates catalyze cleavage of H 2 O 2...
The photocatalytic degradation of the herbicide metobromuron was studied, using TiO 2 photocatalysts (Degussa P25 and Millennium PC50, PC100, PC105 and PC500). Intermediate products were identified by means of liquid chromatography–mass spectrometry (LC–MS–MS) using electrospray (ES)...
The liquid-phase hydrodechlorination of 3-chloropyridine and chlorobenzene has been studied over alkali-modified zirconia-supported palladium catalysts. The modification of the ZrO 2 with alkali metal carbonates improves the catalytic activity of the final palladium catalyst. Therefore, the...
The action of different fungal strains and hydrolytic enzymes on the biotransformation of ethyl acetate constituent of laboratory wastes (mixtures of ethyl acetate–hexanes) was investigated. The studies using Aspergillus terreus SSP 1498 as biocatalyst, showed good results concerning the...
Detailed kinetics of N 2 O conversion and carbon gasification over solids comprised of activated carbon impregnated with Ba, Co, Cu, Fe, Mg, Mn, Ni, Pb and V precursors salts were studied using a GC/MS system. The gasification rates of carbons impregnated with binary mixtures of Mn with other...
Irradiation of the (Cr(C 2 O 4 ) 3 ) 3− complex or the chromate(VI)–oxalate mixture, or the ternary system composed of Cr(III), Cr(VI) and oxalate, leads to chromium photoreductions in consequence of the ligand to metal charge transfer (LMCT) excitations induced by artificial solar radiation....
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