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首页> 外文期刊>International Journal of Environmental Research and Public Health >Biodegradation of Bisphenol A, Bisphenol F and Bisphenol S in Seawater
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Biodegradation of Bisphenol A, Bisphenol F and Bisphenol S in Seawater

机译：海水中双酚A，双酚F和双酚S的生物降解

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A group of compounds structurally similar to bis(4-hydroxyphenyl)propane (bisphenol A, BPA) are called bisphenols (BPs), and some of them can partially replace BPA in industrial applications. The production and consumption of BPs other than BPA, especially those of bis(4-hydroxyphenyl)methane (bisphenol F, BPF) and bis(4-hydroxy-phenyl)sulfone (bisphenol S, BPS), have increased recently, leading to their detection as contaminants in the aquatic environment. The three compounds tested 100% positive for estrus response in 1936 and concerns about their health risks have been increasing. Abundant data on degradation of bisphenols (BPs) has been published, but results for biodegradation of BPs in seawater are lacking. However, several research groups have focused on this topic recently. In this study, the biodegradation behaviors of three BPs, namely BPA, BPF and BPS, in seawater were investigated using TOC Handai (TOC, potential test) and river (sea) die-away (SDA, simulation test) methods, which are both a kind of river-die-away test. The main difference between the tests is that indigenous microcosms remain in the sampled raw seawater for the SDA experiments, but they are removed through filtration and dispersed into artificial seawater for the TOC experiments. The BPs, except for BPS, were degraded using both methods. The SDA method produced better biodegradation results than the TOC method in terms of degradation time (both lag and degradation periods). Biodegradation efficiencies were measured at 75-100% using the SDA method and 13-63% using the TOC method. BPF showed better degradation efficiency than BPA, BPF was > 92% and BPA 83% depleted according to the SDA tests. BPS degradation was not observed. As a conclusion, the biodegradability of the three BPs in seawater could be ranked as BPF > BPA BPS. BPF is more biodegradable than BPA in seawater and BPS is more likely to accumulate in the aquatic environment. BPS poses a lower risk to human health and to the environment than BPA or BPF but it is not amenable to biodegradation and might be persistent and become an ecological burden. Thus other degradation methods need to be found for the removal of BPS in the environment.
机译：结构上与双（4-羟苯基）丙烷（双酚A，BPA）相似的一组化合物称为双酚（BPs），其中一些可以在工业应用中部分替代BPA。 BPA以外的BP的生产和消费量，特别是双（4-羟基苯基）甲烷（双酚F，BPF）和双（4-羟基苯基）砜（双酚S，BPS）的生产和消费量最近有所增加，检测为水生环境中的污染物。这三种化合物在1936年的发情反应中均100％呈阳性，对它们的健康风险的关注也在增加。关于双酚（BPs）降解的大量数据已经发表，但是缺乏在海水中对BPs进行生物降解的结果。但是，最近有几个研究小组专注于该主题。在这项研究中，使用TOC Handai（TOC，潜力测试）和河（海）消亡（SDA，模拟测试）方法研究了三种BP，即BPA，BPF和BPS在海水中的生物降解行为，两者都是一种河流死亡的测试。这些测试之间的主要区别在于，用于SDA实验的原始原水仍保留在采样的原始海水中，但是通过过滤将其去除并分散到人工海水中进行TOC实验。除BPS外，BP均使用两种方法降解。就降解时间（滞后和降解时间）而言，SDA方法比TOC方法产生更好的生物降解结果。使用SDA方法测得的生物降解效率为75-100％，使用TOC方法测得的生物降解效率为13-63％。根据SDA测试，BPF显示出比BPA更好的降解效率，BPF> 92％，BPA消耗83％。没有观察到BPS降解。结论是，这三种BP在海水中的生物降解能力可分为BPF> BPA BPS。在海水中，BPF比BPA更具生物降解性，BPS更有可能在水生环境中积累。与BPA或BPF相比，BPS对人类健康和环境的风险更低，但它不适合生物降解，可能会持久存在并成为生态负担。因此，需要找到其他降解方法来去除环境中的BPS。

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