好氧颗粒污泥脱氮性能研究

Denitrifying Characteristics of Aerobic Granular Sludge in Sequencing Batch Reactor

研究了序批式反应器的污泥沉降时间、曝气速率、水力停留时间、进水方式等参数对好氧颗粒污泥的性能以及COD,NH+4-N,TN去除率的影响。研究结果表明,在一个运行周期内,反应器运行工艺参数,如DO质量浓度和pH,具有一定的变化规律,并且其变化与反应器内各物质的转化存在严格的对应关系。因此,参照反应器运行工艺参数的特征点,对反应过程进行必要的控制,可达到较理想的处理效果。

The effects of different operational (parameters) of sequencing batch reactor(SBR),including settlement time,aeration rate,HRT,feeding manner,on the characteristics of aerobic granular sludge and the removal of COD,NH^+ 4-N and TN were investigated.The experimental results indicate that in one cycle of operation,the (parameters),such as DO and pH,change regularly,and there is a high correlation between the parameters and (reaction) process.According to the characteristic points of the operational parameters,the reaction process in SBR can be controlled and realize satisfactory results.