ABSTRACT Sorption and degradation are considered two primary modes of pollutant removal by microorganisms, and extracellular polymeric substances (EPS) have been shown to play an important role in these biological processes. However, their role in removing refractory organic pollutants the effects of intracellular substances in microorganisms remain unclear. In this study, we investigated both the removal mechanism and intracellular substances involved in removing the pollutant acenaphthene (ACE) from Pseudomonas sp. bacteria in anaerobic conditions. The results indicated that the ACE was mainly adsorbed rather than degraded by bacteria. Moreover, ACE had little impact on EPS secretion at concentrations ranging 0–3 mg/L. Cell walls and membranes accounted for more than 70% of ACE adsorption, whereas intra-cellular substances accounted for about 10–25% and the effect of other components on ACE adsorption was not obvious. A possible mechanism of ACE removal by bacteria is proposed. GRAPHICAL ABSTRACT

中文翻译：

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假单胞菌从废水中去除苊。在厌氧条件下：细胞外和细胞内物质的影响

摘要吸附和降解被认为是微生物去除污染物的两种主要模式，细胞外聚合物（EPS）已被证明在这些生物过程中起着重要作用。然而，它们在去除难降解有机污染物方面的作用以及对微生物细胞内物质的影响尚不清楚。在这项研究中，我们研究了从假单胞菌中去除污染物苊（ACE）的去除机制和细胞内物质。厌氧条件下的细菌。结果表明ACE主要被细菌吸附而不是被细菌降解。此外，ACE 在 0-3 mg/L 的浓度范围内对 EPS 分泌几乎没有影响。细胞壁和细胞膜占ACE吸附量的70%以上，而细胞内物质约占10-25%，其他成分对ACE吸附的影响不明显。提出了细菌去除ACE的可能机制。图形概要