Persistence of antibiotics in soil and aquatic ecosystem is the primary reason for the emergence of antimicrobial resistant microorganisms. After consumption, antibiotics are poorly retained in our body, and a major fraction is excreted out. These bioactive compounds end up in wastewater. The routine treatment practiced by the conventional wastewater treatment plants does not remove the entire load of antibiotics. Cost-effective and environment-friendly treatment technologies need to be developed to address this issue. Vetiver system is being adapted throughout the world due to its removal capacity and high tolerance toward several toxic organic and inorganic pollutants. In this study, we investigated the potential of vetiver (Chrysopogon zizanioides), a fast-growing, perennial grass capable of growing in a hydroponic setup, to remove two widely prescribed antibiotics, ciprofloxacin (CIP) and tetracycline (TTC) from secondary wastewater effluent. Significant (p < 0.05) removal of antibiotics and nutrients (N & P) by vetiver grass from secondary wastewater effluent was observed within 30 days. Vetiver grass removed more than 90% antibiotics from secondary wastewater matrix. In addition to antibiotics, vetiver grass also removed nitrate (>40%), phosphate (>60%), total organic carbon (>50%), and chemical oxygen demand (>40%) from secondary wastewater effluent.

中文翻译：

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香根草（Chrysopogon zizanioides）从二次废水中去除抗生素和营养物质。

抗生素在土壤和水生生态系统中的持久存在是产生抗药性微生物的主要原因。食用后，抗生素很难保留在我们体内，并且大部分会排出体外。这些生物活性化合物最终进入废水。常规废水处理厂进行的常规处理不能去除全部抗生素。需要开发具有成本效益和环境友好的处理技术来解决这个问题。香根草系统的去除能力强，并且对几种有毒的有机和无机污染物具有很高的耐受性，因此正在全世界范围内进行调整。在这项研究中，我们研究了香根草（Chrysopogon zizanioides）的潜力，它是一种能够在水培环境中生长的快速生长的多年生草，从二级废水中去除两种处方广泛的抗生素环丙沙星（CIP）和四环素（TTC）。在30天内，香根草从二次废水中去除了显着（p <0.05）的抗生素和养分（N＆P）。香根草从二级废水基质中去除了90％以上的抗生素。除抗生素外，香根草还从二次废水中去除了硝酸盐（> 40％），磷酸盐（> 60％），总有机碳（> 50％）和化学需氧量（> 40％）。香根草从二级废水基质中去除了90％以上的抗生素。除抗生素外，香根草还从二次废水中去除了硝酸盐（> 40％），磷酸盐（> 60％），总有机碳（> 50％）和化学需氧量（> 40％）。香根草从二级废水基质中去除了90％以上的抗生素。除抗生素外，香根草还从二次废水中去除了硝酸盐（> 40％），磷酸盐（> 60％），总有机碳（> 50％）和化学需氧量（> 40％）。