导流参数与SUFR系统硝化及吸磷效果的灰熵分析  

Effects of parameters of guiding vane on nitrification and phosphorus uptake in the SUFR system based on grey relational entropy

作　　者：季铁军[1] 罗固源[1] 许晓毅[1] 王丹云[1] 

机构地区：[1]重庆大学三峡库区生态环境教育部重点实验室,重庆400045

出　　处：《环境工程学报》2007年第11期36-40,共5页Chinese Journal of Environmental Engineering

基　　金：国家自然科学基金资助项目(50378095)

摘　　要：导流参数是螺旋升流式反应器系统(SUFR system)重要工艺参数。应用灰关联熵分析方法,分别以SUFR系统好氧区硝化以及吸磷效果为目标,研究导流参数对该系统好氧区影响的相关性以及重要性顺序。试验结果表明,各导流参数对硝化以及吸磷均有着明显的影响。对于硝化而言,导流参数对其影响的强弱顺序为:导流转速>导流叶片的串联层数>导流叶片的折角>d/D;对于吸磷而言,导流参数对其影响的强弱顺序为:导流转速>导流叶片的折角>导流叶片的串联层数>d/D。Parameters of the guiding vane in the spiral up flow reactor （SUFR） system were the important technologic factors. The method of grey relational entropy was used to analyze nitrification and phosphorus uptake in the aerobic zone of the SUFR system. The results showed that the rotational speed, the pitch angle of the guid- ing vane,d/D and the layers of multistage vane played important roles in the aerobic zone. And the decreasing effect sequence of the four factors of the nitrification was： the rotational speed 〉 the layers of multistage vane 〉 the pitch angle of the guiding vane 〉 d/D. The decreasing effect sequence of the four factors of the phosphorus removal was ： the rotational speed 〉 the pitch angle of the guiding vane 〉 the layers of multistage vane 〉 d/D.

关 键 词：螺旋升流式反应器系统 硝化 吸磷 导流参数 灰熵 

分 类 号：X703.3[环境科学与工程—环境工程]