气升式内循环接触氧化生物反应器处理啤酒废水的研究

STUDY ON TREATMENT OF BREWERY WASTEWATER BY BIOFILM BIOREACTOR WITH AIRLIFT AND INTERNAL LOOP

在接触氧化法处理啤酒废水的基础上 ,增加内循环装置 ,并与无内循环接触氧化法进行比较研究。分别用间歇处理废水的方法考察了这两种情况下废水CODCr的降解速率和去除率。并在此基础上进行了 90多天的连续运行 ,取得了较好的效果。结果表明 ,增加内循环装置 ,可以强化气 -液传质 。

The bioreactor with both airlift and internal loop was compared with the bioreactor without internal loop based on the biofilm bioreactor for brewery wastewater treatment.The COD Cr degradation speed and removal rates of brewery wastewater were investigated respectively by batch treatment.Then brewery wastewater was treated continuously and effectively in the bioreactor with both airlift and internal loop for more than 90 days and the experimental results indicated that the internal loop could be beneficial to gas\|liquid transfer and efficient for brewery treatment.