Wicherhamomyces anomalus biofilm supported on wood husk for chromium wastewater treatment.
作者： Meryem Asri , Naïma El Ghachtouli , Soumya Elabed , Saad Ibnsouda Koraichi , Alae Elabed
DOI: 10.1016/J.JHAZMAT.2018.05.050
关键词:
摘要: A Wickeramomyces anomalus biofilm supported on wood husk was used to remediate water bodies contaminated with chromium (Cr), in batch and open systems. The favorable adhesion ability of the chromium-resistant yeast strain predicted by XDLVO theory confirmed environmental scanning electronic microscopy. decontamination then optimized a mode using central composite design (CCD). Analysis variance (ANOVA) showed high coefficient determination (R2) value 0.93-0.91 for Cr(VI) total Cr removal, respectively, ensuring satisfactory fitting second-order regression model experimental data. In system, concentration biomass exhibited minimal effect process. An acidic pH 3.72 5.48, an initial 10 16.91 mg/L support dose 6.95 8.20 g/L were optimal respectively. breakthrough curves determined system different concentrations. study glucose extracellular polymeric substances (EPS) production that medium exempt allowed maximal EPS removal efficiency, while 20 presented condition removal.
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