研究了微生物发酵米糠的用量、溶液温度、Cr^6＋浓度、溶液pH值和吸附时间对微生物发酵米糠吸附Cr^6＋性能的影响。实验结果表明：微生物发酵米糠对Cr^6＋具有很好的吸附效果，吸附率达95．7％。其最佳吸附条件为微生物发酵米糠用量10g／L，温度60℃，pH值为2，Cr^6＋质量浓度低于40mg／L，吸附时间40min。该吸附行为符合Freundlich吸附等温方程，吸附过程符合二级动力学模型。%The paper discusses the effects of the dosage of microbial fermentation of rice bran,solution temperature,cadmium concentration,pH value,and the adsorption time to microbial fermentation of rice bran adsorb Cr^6＋ in water. The results show：microbial fermentation of rice bran have good adsorption to Cr^6＋ , the rate of adsorption is above 80 %. Its best adsorption conditions is that the dosage of microbial fermentation of rice bran is 10 g/L,solution temperature is 28℃,pH is 4,Cr^6＋ Concentration is below 30 mg/L,adsorption time is 30 min.
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