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。
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.
出处
《纺织学报》
EI
CAS
CSCD
北大核心
2008年第1期86-90,共5页
Journal of Textile Research
基金
"十五"重点学科投资项目(107-5201040102)
关键词
海泡石
固定化
染色废水
脱色菌
sepiolite
immobilization
dye-house wastewater
decolorizing bacteria
