01345naa a2200229 a 450000100080000000500110000800800410001902400370006010000200009724501250011726000090024252006510025165000250090265300180092765300150094570000170096070000170097770000200099470000260101470000190104077300560105918634572023-06-30       2010    bl uuuu     u00u1 u    #d7 a11110.1007/s0311-008-0194-62DOI1 aGROMBONI, C. F.  aEvaluatin of metabisulfite and a commercial stee wool for removing chromium (VI) from wastewater.h[electronic resource]  c2010  aEfficiency of metabisulfite and a commercial steel wool as reducing agents in the removal of Cr(VI) from wastewaters was evaluated. Chromium( VI) was converted to Cr(III), precipitated with NaOH, and removed by filtration. A reduction of more than 1.0 x 10(5) and 4.0 x 10(5) fold in total Cr and the Cr(VI) concentrations, respectively, was observed by employing steel wool masses as low as 0.4420 g to 30-mL solutions of wastewater. Chromium(III) hydroxide obtained after the treatment was recycled and used as marker in cattle nutrition studies. The liquid residue obtained after the treatment was reused as precipitation agent replacing NaOH.  awastewater treatment  aMetabisulfite  aSteel wood1 aDONATI, G. L1 aMATOS, W. O.1 aNEVES, E. F. A.1 aNOGUEIRA, A. R. de A.1 aNOBREGA, J. A.  tEnviromental Chemistry Lettergv. 8, p.73-77, 2010.