With the acceleration of industrialization,industrial production and manufacturing have led to more and more pollutant emissions,causing serious pollution of water bodies.The composition of wastewater discharged by the textile industry is complex and difficult to treat,and advanced oxidation processes(AOPs)are an effective measure to solve this difficult industrial wastewater.This study conducted heterogeneous Fenton degradation experiments on printing and dyeing wastewater collected from a printing and dyeing factory in a certain industrial park in China.The components were detected and identified using Fourier transform ion cyclotron resonance mass spectrometry.Exploring the composition characteristics of dissolved organic matter(DOM)in printing and dyeing wastewater and its transformation and removal processes in heterogeneous Fenton experiments.The conclusion indicates that lignin and aliphatic compounds are the main components of DOM in printing and dyeing wastewater.After 30 minutes of heterogeneous Fenton process reaction,macromolecular organic matter is degraded into small molecule substances,and the overall mass to charge ratio of DOM decreases.The degradation effect after 4 hours of reaction is not significantly different from that after 30 minutes.After heterogeneous Fenton process degradation,the O/C of the DOM component is higher,and it is rich in more N-containing organic compounds.
关键词
印染废水/溶解性有机质/高级氧化/非均相芬顿工艺/高分辨率质谱
Key words
printing and dyeing wastewater/dissolved organic matter/advanced oxidation/non homogeneous Fenton process/high resolution mass spectrometry
维普
万方数据