A PRELIMINARY STUDY ON THE PHYTOREMEDIATION OF ANTIBIOTIC CONTAMINATED SEDIMENT

作者：Thuy Thi Thanh Hoang^*; Loan Thi Cam Tu; Nga Phi Le; Quoc Phu Dao

来源：International Journal of Phytoremediation, 2013, 15(1): 65-76.

DOI：10.1080/15226514.2012.670316

• phytoremediation
• fluoroquinolone
• shrimp farming
• ciprofloxacin
• norfloxacin
• norfloxacin resistant bacteria

In Vietnam's coastal wetlands, fluoroquinolones, a widely used class of antibiotics in shrimp farming, are frequently detected in sediments of former shrimp farms. This phenomenon could lead to negative impacts on the aquatic ecosystem, since the antibiotic residues could induce changes in the microorganism communities of the water body. The potential of native wetland plants (Acrostichum aureum L. and Rhizophora apiculata Blume Fl. Javae) for phytoremediation of fluoroquinolones (ciprofloxacin and norfloxacin) was investigated. The half-life for each antibiotic was estimated at approximately 10 days in the planted sediment. With respect to the accumulation of ciprofloxacin and norfloxacin in plants, these antibiotics were found mainly in roots. Antibiotic translocation from root to stem and leaves occurred at a low rate. The results showed that A. aureum and R. apiculata can be valuable for the phytoremediation of antibiotic-contaminated sediments. Additionally, the initial findings of the presence of resistant bacteria indicated that bacteria could play a role in facilitating the phytodegradation.

• 出版日期2013