期刊
HELIYON
卷 7, 期 11, 页码 -出版社
CELL PRESS
DOI: 10.1016/j.heliyon.2021.e08403
关键词
Phytoremediation; Constructed wetlands; Phytotoxicity; Alternanthera spp; Pharmaceuticals and personal care products
资金
- College of Engineering and AlKhwarizmi College of Engineering, University of Baghdad
- College of Engineering, Wasit University
- Iraqi Ministry of Higher Education, Iraq
The study revealed that phytoremediation technology using Alternanthera spp. can enhance the removal efficiency of acetaminophen and methylparaben in water. Results showed the significant role of Alternanthera spp. in accelerating the removal process in constructed wetlands.
Recently, the spread of pharmaceuticals and personal care products (PPCPs) in the aquatic environment has steadily increased. In this study, phytoremediation technology, using an ornamental plant (Alternanthera spp.), was investigated to improve the removal of acetaminophen (AC) and methylparaben (MP) from a synthetically prepared wastewater. Three exposure lines (AC-line, MP-line and control-line) were performed with a total of 26 subsurface-horizontal constructed wetlands (SSH-CWs) that operated in batch feeding mode. The influence of plants in addition to the initial spiking concentration (20, 60 and 100 mg/L) of AC and MP on the removal ef-ficiency was evaluated throughout the 35-days experiments. The highest removal efficiencies for AC and MP were 88.6% and 66.4%, respectively, achieved in the planted CWs; whereas only 29.7% and 21.9% were achieved in the control CWs for AC and MP, respectively. The results confirmed the role of Alternanthera spp. for accelerating the removal of AC and MP from synthetically contaminated wastewater in CWs.
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