Journal of Hazardous Materials ( IF 13.6 ) Pub Date : 2021-01-11 , DOI: 10.1016/j.jhazmat.2021.125105 Cui Zhang , Jian Lu , Jun Wu
The phytoremediation of phenolic endocrine disrupting compounds (EDCs) in coastal waters by intertidal macroalgae was firstly investigated. The results showed that intertidal macroalgae could remove bisphenol A (BPA) and nonylphenol (NP) at environmental relevant concentration, and Ulva pertusa was the most efficient one. In most cases, the order of EDCs removal efficiency could be expressed as: green algae > brown algae > red algae. The in-situ monitoring using a charge‐coupled device imaging system confirmed the accumulation of EDCs in the intertidal macroalgae. The removal mechanisms included the initial rapid biosorption process, followed by the slow accumulation and biodegradation. The removal efficiency of BPA and NP was slightly dependent on temperature and nutrient concentration. A linear relationship was observed between the initial concentration and the average removal rate (R2 > 0.99). The BPA and NP at the environmental relevant concentration (100 μg L−1) could be removed efficiently using Ulva pertusa even after three cycles in pilot-scale experiments. The high removal efficiency of NP and BPA was also confirmed by the field investigation from the intertidal zone with abundant Ulva pertusa. These findings demonstrated that intertidal macroalgae could play essential role for the phytoremediation of phenolic EDCs in coastal waters.
中文翻译:
潮间带大藻类增强从沿海水域清除破坏酚类内分泌的化学物质
首先研究了潮间带大型藻类对沿海水域中酚类内分泌干扰化合物(EDCs)的植物修复作用。结果表明,潮间带大型藻类可以去除环境中相关浓度的双酚A(BPA)和壬基酚(NP),其中百日草(Ulva pertusa)是最有效的。在大多数情况下,EDC去除效率的顺序可以表示为:绿藻>棕藻>红藻。在原位使用电荷耦合设备成像系统进行的监测证实了潮间带大藻中EDC的积累。去除机理包括最初的快速生物吸附过程,然后是缓慢的积累和生物降解。BPA和NP的去除效率略微取决于温度和营养物浓度。初始浓度和平均去除率之间存在线性关系(R 2 > 0.99)。即使在中试规模的实验中经过三个循环,也可以使用百日草有效去除环境相关浓度(100μgL -1)的BPA和NP 。潮间带的实地调查也证实了NP和BPA的高去除率。尺。这些发现表明,潮间带大藻类可能对沿海水域中的酚类EDC的植物修复起重要作用。