生物除磷机理及试验研究

介绍了生物除磷机理、生物除磷系统的积磷细菌、生物除磷所需的环境条件。SBR法除磷的试验研究表明,应用SBR活性污泥系统进行除磷,需要一定的厌氧条件;且须在厌氧阶段进行充足的曝气。试验结果证明,SBR法在时间上控制的灵活性非常适合生物除磷的环境条件。厌氧与好氧相结合,能够提高磷的去除率或降低出水磷的浓度,磷的去除率可达90%左右。

MECHANISM AND EXPERIMCNTAL RESCARCH OF REMOVING PHOSPHORUS BY BIOLOGICAL PROCESS

The mechanism and environmental condition of removing phosphorus by biological process and phosphorus accumulating bacteria of biological phosphorus removing system are introduced. The result of experimental research of removing phosphorus by SBR process shows that some anaerobic condition is needed to remove phosphorus by SBR activated sludge system,and sufficient aeration should be carried out at anaerobic stage.The result of experiment shows that the flexibility of SBR process on time control is suited very much to the environmental condition of removing phosphorus with biological method.It will increase removal rate of phosphorus or reduce the concentration of phosphorus in the effluent by combining anaerobic with aerobic methods.and the removal rate of phosphorus can be up to 90% or so.