Under the condition of optimum residence time 8 h, the removal rates of COD cr , LAS were determined, which reduced about 8%, 10% respectively.

• 停留时间 8h内重铬酸钾法化学需氧量 (CODcr)去除率降低 8%25 ,直链烷基苯磺酸酯(LAS)的去除率降低 10%25 ;