【摘要】 采用SPE-GC-MSD-SIM方法,分析了壬基酚在污水再生处理全过程中的迁移转化行为与归宿。研究表明,在污水二级生物处理流程中,壬基酚主要来源为原污水和泥区回流液;壬基酚的去除途径有一沉池生污泥的吸附迁移作用和曝气池单元的生物降解转化作用,其中一沉池生污泥的吸附去除29.8%,曝气池生物降解54.4%,NP总去除率为84.2%。絮凝、过滤和消毒的污水再生深度处理工艺对壬基酚的迁移转化作用不明显。更多还原

【Abstract】 An integrated SPE-GC-MSD-SIM analytical approach was used for examining the fate and removal of Nonylpheoel(NP) in different wastewater treatment processes.The results show that main NP comes from the original untreated wastewater and the leachate from the sludge collection and disposition unit.Major NP removal mechanisms include physio-chemical adsorption and biological decomposition.It is indicated that the adsorption by the sludge in the primary precipitation pond could remove 29.8% of total NP,and biological decomposition occurred in the aeration reactor unit could remove 54.4% of total NP.Actually the total removal rate is the 84.2% of NP in the process of municipal wastewater treatment.The same studies conducted for the reuse wastewater treatment process show that NP removal by the flocculation,filtration and disinfection processes is invisible and can be neglected.更多还原