Mechanism of hexavalent chromium removal by dead fungal biomass of Aspergillus niger.
作者： Donghee Park , Yeoung-Sang Yun , Ji Hye Jo , Jong Moon Park
DOI: 10.1016/J.WATRES.2004.11.002
关键词:
摘要: When synthetic wastewater containing Cr(VI) was placed in contact with the dead fungal biomass of Aspergillus niger, completely removed from aqueous solution, whereas Cr(III), which not initially present, appeared solution. Desorption and X-ray photoelectron spectroscopy (XPS) studies showed that most Cr bound on trivalent form. These results indicated main mechanism removal a redox reaction between biomass, is quite different previously reported mechanisms. The influences time, pH, concentration, concentration temperature were also evaluated. rate increased decrease pH increases temperature. Although kinetics dependent experimental conditions, In conclusion, new by has been proposed. From practical viewpoint, this abundant inexpensive potential application conversion toxic into less or nontoxic Cr(III).
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