白腐真菌生物膜反应器中活性艳红 X-3B脱色与降解的实验研究

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Experimental results of an azo dye(reactive brilliant red X-3B, RBR X-3B) decolorization and degradation in a white rot fungal biofilm reactor were introduced and discussed. The fungal biofilm reactor is highly potential for dye decolorization and degradation with the highest decoloring rate of 95% within 96 hours reaction time at initial pH 4.5 under high nitrogen level (HN) (24 mmol/L ammonium tartrate) condition. Experimental conditions, such as nutrient nitrogen levels in reaction mixture and initial pH, significantly affected dye decolorization and degradation. Effluents from this biofilm reactor can be well treated to meet the discharging requirements by use of chemical flocculation. RBR X-3B was first absorbed onto fungal biomass and then degraded gradually. The SH-13 fungus monopolized the biofilm throughout the experiments, though the reactor was exposed to open air for 4 months.
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