颗粒生物膜序批式MBR废水处理特性研究

The Characteristics of Particle Biofilm Sequencing Batch MBR for Wastewater Treatment

采用投加多孔聚合物载体的序批式膜生物反应器处理人工废水及某化工废水,考察了系统对污染物去除效果及影响膜污染的因素。结果表明,系统处理人工配水时,当COD进水浓度为218~1003 mg/L,NH3-N浓度为24~96 mg/L,对COD、氨氮的去除率分别为87%~99%、65%~99%;处理工业废水时,COD进水浓度为174~709mg/L,NH3-N浓度为18~63 mg/L,COD、氨氮的去除率分别为60%~96%、72%~94%。实验发现,添加多孔聚合物颗粒后,在MLSS低于19.2 g/L的浓度下,不会发生明显的膜污染;连续抽吸促使跨膜压差增长更快,会加速膜污染。多孔聚合物载体MBR序批式操作特性研究,为该新型MBR的实际应用提供了依据。

A sequencing batch membrane bioreactor with polymer microcarriers was introduced to treat synthetic organic wastewater and industrial wastewater containing toluene and xylene.The removal effect of pollutants and the influence factors of membrane fouling were observed.The results showed that when the synthetic organic wastewater with the influent COD concentration of 218~1003 mg/L and NH3-N concentration of 24~96 mg/Lwas treated,the removal rates of COD and NH3-N were 87%~99% and 65%~99%,respectively;when in...