Phytoremediation potentiality of garlic roots for 2,4-dichlorophenol removal from aqueous solutions
Phytoremediation potentiality of garlic roots for 2,4-dichlorophenol removal from aqueous solutions
复制标题
大蒜根去除水溶液中 2,4-二氯苯酚的植物修复潜力
DOI：
10.1007/s00253-014-6277-3
复制
发表时间：
2014-12
期刊：
影响因子：
--
通讯作者：
LanYing Zhang
中科院分区：
文献类型：
--
作者：
Yan Wang;JunXing Zhang;HeJun Ren;Ying Wang;HongYu Pan;LanYing Zhang
2，4-二氯苯酚（2，4-DCP）是一种毒性大、分布广的重要污染物。人们研究了无害化修复技术来去除该污染物。研究了大蒜根作为植物系统去除2，4-DCP的可行性。通过正交试验（OA 25基质），确定了最佳去除条件。影响去除效率的重要因素从高到低排列，包括pH、反应时间、2，4-DCP浓度和H2 O2浓度。此外，大蒜根可以重复使用多达三个连续的周期。去除后溶液pH值的降低和Cl（-）离子含量的增加表明2，4-DCP在转化过程中发生了脱卤。暴露于2，4-DCP的根中木质素沉积模式的变化表明，沉积的产物中有几种是木质素型聚合物。急性毒性试验表明，去除后溶液的毒性低于母体溶液。因此，大蒜根具有相当大的潜力，可以有效和安全地去除废水中的2，4-DCP。
2,4-Dichlorophenol (2,4-DCP) is considered as an important pollutant because of its high toxicity and wide distribution in wastewaters. Innocuous remediation technologies have been studied for the removal of this pollutant. This study investigated the feasibility of using garlic roots as a plant system for the removal of 2,4-DCP. The optimal conditions for its removal were established based on orthogonal experiments (OA25 matrix). Significant factors that affect removal efficiency, arranged from high to low importance, include pH, reaction time, 2,4-DCP concentration, and H2O2 concentration. In addition, garlic roots could be re-used for as much as three consecutive cycles. The decrease in pH and the increase of Cl(-) ion content in the post-removal solutions indicated that 2,4-DCP dehalogenation occurred during transformation. Changes in the deposition pattern of lignin in roots exposed to 2,4-DCP suggested that several of the products deposited were lignin-type polymers. The acute toxicity test revealed that the post-removal solutions were less toxic than the parent solutions. Therefore, garlic roots have considerable potential to effectively and safely remove 2,4-DCP from wastewater.
登录
查看更多内容
影响因子：
4.4
作者：
H. Jakubowski
通讯作者：
H. Jakubowski
影响因子：
2.9
作者：
Ikehata, K;Nicell, JA
通讯作者：
Nicell, JA
影响因子：
8.8
作者：
B. S. de Araujo;J. Dec;J. Bollag;M. Pletsch
通讯作者：
B. S. de Araujo;J. Dec;J. Bollag;M. Pletsch
影响因子：
4.1
作者：
Ahmed Suheyl Ucisika;S. Trapp;K. O. Kusk
通讯作者：
Ahmed Suheyl Ucisika;S. Trapp;K. O. Kusk
影响因子：
8.8
作者：
Coniglio, Maria S.;Busto, Victor D.;Agostini, Elizabeth
通讯作者：
Agostini, Elizabeth