生物膜磁场流化床应用于硫酸盐废水脱硫处理研究

将磁场稳态流化床（MSFB）技术应用于高硫酸盐废水的处理。具体做法是,将驯化后的硫酸盐还原菌（SRB）菌群接入已填充有磁性聚苯乙烯多孔微球（MPB）的厌氧磁性流化床（anMSFB）,采用载体浸泡挂膜法进行启动运行,然后通入模拟废水进入稳定负荷运行。通过显微、扫描电镜等方法研究了系统anMSFB的生物膜组成及生物膜量;考察了pH、温度对SO42-去除率的影响;确定了anMSFB反应器中SO42-的降解动力学方程;理论推导出在特定进液废水浓度和脱硫率下anMSFB反应器中MPB颗粒的填充高度。该研究为固定化生物膜磁场流化床反应系统应用于含硫废水处理奠定了坚实的基础。

Application of Biological Film Magnetically Stabilized Fluidized Bed on Sulfate Wastewater Desulphurization Treatment

The paper is about magnetic stabilized fluidized bed reactor （MSFB） used in the treatment of sulphate-containing waste water. The acclimated sulphate reducing bacteria （SRB） group was put in sulphate reducing bacteria （anMSFB） filled with magnetic porous polystyrene microbeads （MPB）. The start-up of the system was operated using immersing - carriers- to- form- biofilm method. Then, the simulated waste water was flowed in to reach the stabilized loading operation. The optical microscopy and the scanning electron microscopy were used to investigate the biomass and biofilm formation in anMSFB. The effects of temperature and pH on the removal efficiency of SO4^2- were studied, and the SO4^2- degradation kinetics equation of anMSFB was determined. The bed height of MPB in anMSFB was deduced out theoretically according to the certain influent waste water concentration and desulphurization efficiency.The study has laid a foundation for MSFB with immobilized microorganism applied in the treatment of sulphate-containing waste water.