摘要
In order to enhance the biodecolorization rate and avoid the wash-out problems of redox mediators in continuous systems such as a fluidized bed reactor, polyvinyl alcohol （PVA） beads modified with N- containing function groups were investigated and employed as a new sodium anthraquinone-2- sulfonate （AQS） carrier material. Elementary and XPS analyses confirm the existence of AQS on modified PVA bead. The modified PVA beads suit with immobilizing AQS better in adsorption capability and stability. AQS supported on modified PVA beads shows high catalytic activity for biodecolorization of reactive blue 13 in a long process （〉10 runs）.
In order to enhance the biodecolorization rate and avoid the wash-out problems of redox mediators in continuous systems such as a fl uidized bed reactor, polyvinyl alcohol(PVA) beads modi fied with Ncontaining function groups were investigated and employed as a new sodium anthraquinone-2-sulfonate(AQS) carrier material. Elementary and XPS analyses con firm the existence of AQS on modi fied PVA bead. The modi fied PVA beads suit with immobilizing AQS better in adsorption capability and stability.AQS supported on modi fied PVA beads shows high catalytic activity for biodecolorization of reactive blue13 in a long process(N 10 runs).
基金
Supported by the National Natural Science Foundation of China(21276231,21476201,U1462201,and 21376216)
