Comparison of Medium-Pressure UV/Peracetic Acid to Remove Three Typical Refractory Contaminants of Textile Wastewater
文献类型： 外文期刊
作者： Zhu, Yanping 1 ; Cao, Yuxuan 1 ; Shu, Shihu 1 ; Zhu, Pengjin 2 ; Wang, Dongfang 1 ; Xu, He 1 ; Cai, Dongqing 1 ;
作者机构： 1.Donghua Univ, Coll Environm Sci & Engn, Shanghai 201620, Peoples R China
2.Guangxi Subtrop Crops Res Inst, Nanning 530000, Peoples R China
关键词： MPUV; PAA; reactive blank 5; aniline; polyvinyl alcohol; advanced oxidation
期刊名称：PROCESSES （ 影响因子：3.5； 五年影响因子：3.4 ）
ISSN：
年卷期： 2023 年 11 卷 4 期
页码：
收录情况： SCI
摘要： In this work, the performance of medium-pressure UV/peracetic acid (MPUV/PAA/H2O2) was explored on removing reactive black 5 (RB5), aniline (ANL), and polyvinyl alcohol (PVA), three typical refractory contaminants in printing and dyeing wastewater, compared with MPUV/H2O2. MPUV/PAA/H2O2 showed 75.0, 44.9, and 57.7% removals of RB5, ANL, and PVA, respectively, within 5 min. The removal of RB5 increased from 68.98 to 91.2%, with pH increasing from 6 to 9, while the removals of ANL and PVA were much less pH-dependent. Quenching experiment results indicated that UV photolysis and radical (i.e., center dot OH and R-C center dot) oxidation contributed to RB5 removal, while PAA showed high activity in the oxidation of ANL. For PVA, center dot OH oxidation and UV photolysis were likely the main mechanisms. The coexisting natural organic matter had a negative effect on the degradation of RB5 and PVA. In addition, MPUV/PAA/H2O2 could effectively degrade those pollutants without increasing the toxicity. This work provides a theoretical reference for the utilization of MPUV/PAA/H2O2 in removing structurally diverse refractory contaminants from printing and dyeing wastewater.
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