微塑性胁迫下模拟河水中植物净化营养物质和全氟烷基酸的有效性及机理

IF 3.1 4区环境科学与生态学 Q2 ENVIRONMENTAL SCIENCES

International Journal of Phytoremediation Pub Date : 2025-10-21 DOI:10.1080/15226514.2025.2572316

Yi-Xi Liu, Yi-Li Wang, Guo-Hao Wang, Yu-Cheng Wang, De-Tao Que, Yuan-Yuan Zhou

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引用次数: 0

摘要

采用水培试验，研究了微塑性胁迫下模拟河水中植物对总氮（TN）、总磷（TP）、全氟辛酸（PFOA）和全氟辛烷磺酸（PFOS）的去除效果及机制。结果表明，4种植物在微塑性胁迫下对模拟河水中TN、TP、PFOA和PFOS具有较好的去除能力。微塑性胁迫下植物对TN、TP、PFOA和PFOS的去除率分别为57.1% ~ 80.0%、48.5% ~ 67.6%、42.0% ~ 68.5%和48.0% ~ 85.3%。对TN和TP的去除率分别为80.0%和67.6%，对PFOA和PFOS的去除率分别为42.0%和48.0%。M. verticillatum对PFOA和PFOS的去除效果最显著。植物对全氟辛烷磺酸的吸收优于对全氟辛烷磺酸的吸收。全氟辛烷磺酸（PFOS）在植物根部的积累倾向于比全氟辛烷磺酸更强。微塑性胁迫导致植物对TN、TP、PFOA和PFOS的去除率分别下降3.9% ~ 5.3%、5.4% ~ 6.9%、4.9% ~ 7.2%和2.7% ~ 7.2%。

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Effectiveness and mechanism of plant purification of nutrients and perfluoroalkyl acids in simulated river water under microplastic stress.

Pontederia cordata, Canna indica, Myriophyllum verticillatum, and Vallisneria natans were selected to investigate the effect and mechanism of plant removal of total nitrogen (TN), total phosphorus (TP), perfluorooctanoic acid (PFOA), and perfluorooctane sulfonate (PFOS) from simulated river water under microplastic stress through hydroponic experiments. The results showed that the four plants had good ability to remove TN, TP, PFOA, and PFOS from simulated river water under microplastic stress. The removal of TN, TP, PFOA, and PFOS by plants under microplastic stress ranged from 57.1% to 80.0%, 48.5% to 67.6%, 42.0% to 68.5%, and 48.0% to 85.3%, respectively. The best removal of TN and TP was achieved by P. cordata with 80.0% and 67.6%, respectively, while PFOA and PFOS were removed by P. cordata at a rate of 42.0% and 48.0%, respectively. M. verticillatum showed the most significant removal of PFOA and PFOS. The uptake of PFOS by plants was better than that of PFOA. Perfluorooctane sulfonate (PFOS) tended to accumulate in plant roots more than PFOA in P. cordata and C. indica. Microplastic stress resulted in a decrease in plant removal of TN, TP, PFOA, and PFOS by 3.9%∼5.3%, 5.4%∼6.9%, 4.9%∼7.2%, and 2.7%∼7.2%, respectively.

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来源期刊

International Journal of Phytoremediation 环境科学-环境科学

CiteScore

7.60

自引率

5.40%

发文量

145

审稿时长

3.4 months

期刊介绍： The International Journal of Phytoremediation (IJP) is the first journal devoted to the publication of laboratory and field research describing the use of plant systems to solve environmental problems by enabling the remediation of soil, water, and air quality and by restoring ecosystem services in managed landscapes. Traditional phytoremediation has largely focused on soil and groundwater clean-up of hazardous contaminants. Phytotechnology expands this umbrella to include many of the natural resource management challenges we face in cities, on farms, and other landscapes more integrated with daily public activities. Wetlands that treat wastewater, rain gardens that treat stormwater, poplar tree plantings that contain pollutants, urban tree canopies that treat air pollution, and specialized plants that treat decommissioned mine sites are just a few examples of phytotechnologies.