【摘要】 结合北京市某污水处理厂CAST工艺的运行情况,考察了DO对除磷及污泥性质的影响。研究表明选择区的厌氧状态很重要。处理低浓度污水时,主区DO对污泥的活性和污泥含磷量有影响,较低的DO有利于提高污泥的活性和含磷量,从而提高除磷率。更多还原

【Abstract】 The dissolved oxygen’s effects on phosphorus removal and sludge properties in CAST (Cyclic Activated Sludge Technology) process were investigated at a wastewater treatment plant in Beijing. The results showed that it is very important that select structure of the process maintained anaerobic. In case when low concentrated wastewater was treated, the activity and P content of sludge were depended on the DO level at the main structure of the process, lower the DO level, higher the activity and P content of the sludge. By this way P removal could be improved.更多还原