Degradation of bisphenol S – a contaminant of emerging concern - by synergistic ozone and percarbonate based AOP

IF 4.5 3区工程技术 Q1 WATER RESOURCES

Water Resources and Industry Pub Date : 2023-06-01 DOI:10.1016/j.wri.2023.100208

Zahra Askarniya , Manoj P. Rayaroth , Xun Sun , Zhaohui Wang , Grzegorz Boczkaj

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引用次数: 5

Abstract

Degradation of bisphenol S was studied using ozone activated by sodium percarbonate and the effectiveness of optimized process was compared with the peroxone process. The influence of several factors including sodium percarbonate concentration, ozone dose, pH, and water matrix were investigated. A synergetic coefficient of 3.84 was achieved for the combination of sodium percarbonate and ozone, confirming the effectiveness of this hybrid process. Scavenging tests revealed, that carbonate radicals, hydroxyl radicals, superoxide radicals, and singlet oxygen contributed to the degradation of bisphenol S. At the same operating condition, degradation effectiveness values of 99% and 81% were obtained by ozone combined with sodium percarbonate and hydrogen peroxide, respectively, demonstrating the superiority of sodium percarbonate over hydrogen peroxide in combination with ozone for the degradation of bisphenol S. Low concentration of inorganic anions had a negligible effect on the degradation, while carbonate ions increased the first-order degradation rate constant by 56%.

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降解双酚S -一个新兴的关注污染物-通过协同臭氧和过碳酸酯基AOP

研究了过碳酸钠活化臭氧对双酚S的降解效果，并将优化后的工艺与过氧酮工艺进行了比较。考察了过碳酸钠浓度、臭氧剂量、pH值和水基质等因素的影响。过碳酸钠与臭氧复合的协同系数为3.84，证实了该混合工艺的有效性。清除实验表明，臭氧对双酚s的降解作用主要有碳酸盐自由基、羟基自由基、超氧自由基和单线态氧。在相同的操作条件下，臭氧与过碳酸钠和过氧化氢复合的降解效率分别为99%和81%。证明过碳酸钠比过氧化氢与臭氧结合降解双酚s的优势。低浓度的无机阴离子对降解的影响可以忽略不计，而碳酸盐离子使一级降解速率常数提高了56%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Water Resources and Industry Social Sciences-Geography, Planning and Development

CiteScore

8.10

自引率

5.90%

发文量

审稿时长

75 days

期刊介绍： Water Resources and Industry moves research to innovation by focusing on the role industry plays in the exploitation, management and treatment of water resources. Different industries use radically different water resources in their production processes, while they produce, treat and dispose a wide variety of wastewater qualities. Depending on the geographical location of the facilities, the impact on the local resources will vary, pre-empting the applicability of one single approach. The aims and scope of the journal include: -Industrial water footprint assessment - an evaluation of tools and methodologies -What constitutes good corporate governance and policy and how to evaluate water-related risk -What constitutes good stakeholder collaboration and engagement -New technologies enabling companies to better manage water resources -Integration of water and energy and of water treatment and production processes in industry