01407nas a2200205   4500008004100000022001400041245007000055210006900125260007400194300001400268490000700282520066700289653002300956653002200979653002201001653002501023100002401048700002501072856010401097       2008                        eng d  a0141-549200aHexavalent chromate reduction by immobilized streptomyces griseus0 aHexavalent chromate reduction by immobilized streptomyces griseu  aVAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDSbSPRINGERcJUN  a1005-10100 v303 a<p>Hexavalent chromium, which is a mutagen and carcinogen, was efficiently reduced by Streptomyces griseus. This activity was associated with the cell. Cr6+ reduction by free as well as immobilized cells was studied: cells in PVA- alginate had the highest ( 100%) Cr6+ removal efficiency in 24 h with reduction rates similar to free cells. Immobilized cells completely reduced 25 mg Cr6+ l(-1) in 24 h. PVA- alginate immobilized cells could be reused four times to completely reduce 25 mg Cr6+ l(-1) in 24 h each time. Chromate in a simulated effluent containing Cu2+, Mg2+, Mn2+ and Zn2+ was completely reduced by PVA- alginate immobilized cells within 9 h.</p>10aChromate reduction10aImmobilized cells10apolyvinyl alcohol10aStreptomyces griseus1 aPoopal, Ashwini, C.1 aLaxman, Ryali, Seeta  uhttps://library.ncl.res.in/content/hexavalent-chromate-reduction-immobilized-streptomyces-griseus-0