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首页> 外文期刊>Environmental research >Stability, biological treatment and UV photolysis of 18 bisphenols under laboratory conditions
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Stability, biological treatment and UV photolysis of 18 bisphenols under laboratory conditions

机译：在实验室条件下18个双酚的稳定性，生物处理和UV光解

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摘要

The limited knowledge on the stability, removal, and the fate of bisphenol A analogues in the aqueous environment led us to assess the removal by hydrolysis, adsorption, biological treatment and UV photolysis of eighteen common bisphenol compounds (BPs). Hydrolysis of BPs does not occur. The main factor affecting their stability in wastewater samples is storage time, and safe storage conditions were found to be - 20 °C or 4 °C for up to four weeks. The results also revealed no significant reduction in the levels of BPs standards when stored in either methanol or ultrapure water. BPE was found to be the most stable, followed by BPF isomers, BPS and BPF, while BP26DM was the least stable and BPM, BPPH, BPP, BPBP and BPFL were quickly adsorbed. For most BPs, the removal efficiency of biological treatment was > 85%, and there was no difference between the suspended activated sludge and moving bed bioreactors. Different adsorption affinities of the BPs to biomass were observed and reflect the differences in their K_(ow). In terms of degradability, direct UV photolysis in water produced three groups of BPs: (A) highly removable (RE > 94%), (B) moderately removable (RE 50-80%) and (C) poorly removable (RE 25-45%). In nearly all cases degradation followed pseudo-first-order kinetics.
机译：对水性环境中双酚A类似物的稳定性，去除和命运的有限知识导致我们通过水解，吸附，生物处理和UV光解除以二份常见的双酚化合物（BPS）的去除。不发生BPS的水解。影响废水样品中稳定性的主要因素是储存时间，并且发现安全储存条件为-20℃或4°C长达四周。结果还显示储存在甲醇或超纯水中时，BPS标准水平没有显着降低。 BPE被发现是最稳定的，其次是BPF异构体，BPS和BPF，而BP26DM是最不稳定的，BPM，BPPH，BPP，BPBP和BPFL迅速吸附。对于大多数BPS而言，生物处理的去除效率> 85％，悬浮的活性污泥和移动床生物反应器之间没有差异。观察到BPS对生物质的不同吸附亲和力，并反映其K_（OW）的差异。在降解性方面，在水中的直接UV光解产生三组BPS：（a）高度可去除（Re> 94％），（b）适度可去除（Re 50-80％）和（c）可拆卸（Re 25- 45％）。在几乎所有案例中，劣化遵循伪一阶动力学。

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  • 来源
    《Environmental research》 |2019年第12期|108738.1-108738.11|共11页
  • 作者

    Ana Kovacic; Marjeta Cesen; Maria Laimou-Geraniou; Dimitra Lambropoulou; Tina Kosjek; David Heath; Ester Heath;

  • 作者单位

    Department of Environmental Sciences Jozef Stefan Institute Jamova Cesta 39 1000 Ljubljana Slovenia Jozef Stefan International Postgraduate School Jamova Cesta 39 1000 Ljubljana Slovenia;

    Department of Environmental Sciences Jozef Stefan Institute Jamova Cesta 39 1000 Ljubljana Slovenia Jozef Stefan International Postgraduate School Jamova Cesta 39 1000 Ljubljana Slovenia;

    Jozef Stefan International Postgraduate School Jamova Cesta 39 1000 Ljubljana Slovenia;

    Department of Chemistry Aristotle University of Thessaloniki University Campus 54124 Thessaloniki Greece;

    Department of Environmental Sciences Jozef Stefan Institute Jamova Cesta 39 1000 Ljubljana Slovenia Jozef Stefan International Postgraduate School Jamova Cesta 39 1000 Ljubljana Slovenia;

    Jozef Stefan International Postgraduate School Jamova Cesta 39 1000 Ljubljana Slovenia;

    Department of Environmental Sciences Jozef Stefan Institute Jamova Cesta 39 1000 Ljubljana Slovenia Jozef Stefan International Postgraduate School Jamova Cesta 39 1000 Ljubljana Slovenia;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    Bisphenol; Stability; Biological treatment; UV photolysis;

    机译：双酚;稳定;生物处理;紫外线光解;

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