【摘要】 为提高印染废水的脱色效果,提出一种用于染料脱色菌固定化的载体海泡石,并对酸性红B染料进行脱色研究。研究海泡石活化温度、脱色pH值、温度和菌浓度对脱色率的影响。优化最佳的固定化和脱色条件:活化温度400℃,脱色时间72 h、33℃、pH值为7.0、菌量为2%,对酸性红B脱色率达到91.5%。结果表明:当染料质量浓度低于100 mg/L时,固定于海泡石的脱色菌比游离悬浮菌对印染废水的脱色效果好。更多还原

【Abstract】 For enhancing the decolorizing effect of dye-house wastewater,a decoloring method using bacteria immobilized on sepiolite was developed.And decolorization of Acid Red B by immobilized cell was investigated.The effect of temperature,pH value,the amount of mycelium on the rate of discolorization was studied.The optimum decolorizing process conditions by bacteria immobilized on sepiolite were as follows: pretreating temperature 400℃,decolorizing time 72 h,33℃,pH 7.0,and the amount of mycelium 2%,and under these conditions 91.5% of decolorizing rate of Acid Red B was achieved.The experimental results show that when dye concentration is less than 100 mg/L,the discolorizing effect of bacteria immobilized on sepiolite is advantageous over that of free suspension bacteria.更多还原