【摘要】 设计了一套A/OMBR系统处理印染废水,通过四个阶段的连续运行,对其COD、色度、SS、浊度等指标进行监测,确定最佳运行条件为HRT9～10h,DO2～3mg/L,在此条件下处理后可使印染废水的COD≤100mg/L、色度2～16倍、浊度≈0、SS≈0、pH7～8.5。结果表明A/OMBR系统费用低、效果好,其中A/O系统可提高印染废水的可生化性,利于后续MBR的处理,最终使印染废水实现达标排放。更多还原

【Abstract】 The printing and dyeing wastewater is treated by designed A/O MBR system. Some indexes (COD, color, SS, turbidity and so on) are inspected through continuous running of four stages. The decided optimum running conditions of A/O MBR(condition of immersion) system are HRT 9 - 10 h,DO 2 - 3 mg/L. The final values after treatment are COD≤100 mg/L,chroma 2 - 16 times,turbidity≈0,SS≈0,pH 7 - 8.5. The results indicate the treatment effect of A/O MBR(condition of immersion) system is good and A/O system can increase the biochemical treatment performance of wastewater and make the later MBR treatment easier and make printing and dyeing wastewater arrive at the standard.更多还原