The A/O phosphorus removal process has been proved efficient in controlling the filament bulking.But enough attention should be paid to the potential risk of the low DO bulking as well.

• 介绍了深圳滨河污水处理厂二期工程由传统活性污泥工艺改为A/O除磷工艺的运行情况，证实A/O除磷工艺对于控制污泥膨胀是有效的。