Department of Environmental Health Engineering, Health Sciences Research Center, Faculty of Health, Mazandaran University of Medical Sciences, Sari, Iran.
Health Promotion Research Center, Zahedan University of Medical Sciences, Zahedan, Iran.
J Environ Health Sci Eng. 2014 Apr 2;12:66. doi: 10.1186/2052-336X-12-66. eCollection 2014.
Many organic hazardous pollutants such as bisphenolA (BPA) which are toxic and not easily biodegradable can concerns for environmental pollution worldwide. The objective of this study was to examine whether Azolla Filiculoides is able to remove BPA from aqueous solutions. In this study, the Azolla with different biomass (0.3, 0.6, 0.9, 1.2 g) has been cultured in solution that was contained 5, 10, 25 and 50 ppm BPA. Samples were collected every 2 days from all of containers. The analytical determination of BPA was performed by using of DR4000 uv-visible at λmax = 276 nm. The results indicated that Azolla has high ability to remove BPA from aqueous solutions. The BPA removal was 60-90%. The removal efficiency is increasing with decreasing of BPA concentration and increasing of biomass amount and vice versa. The removal efficiency was more than 90% when BPA concentration was 5 ppm and amount of biomass was 0.9gr. It is concluded that Azolla able remove BPA by Phytodegradation from the aqueous solutions. Since conventional methods of BPA removal need to high cost and energy, phytoremediation by Azolla as a natural treatment system can decrease those issues and it can be a useful and beneficial method to removal of BPA.
许多有机有害污染物，如双酚 A（BPA），具有毒性且不易生物降解，可能会引起全球环境污染问题。本研究的目的是研究满江红是否能够从水溶液中去除 BPA。在这项研究中，不同生物量（0.3、0.6、0.9、1.2g）的满江红在含有 5、10、25 和 50ppm BPA 的溶液中进行培养。每隔 2 天从所有容器中收集样品。使用 DR4000 紫外可见分光光度计在 λmax=276nm 处进行 BPA 的分析测定。结果表明，满江红具有从水溶液中去除 BPA 的高能力。BPA 的去除率为 60-90%。去除效率随着 BPA 浓度的降低和生物量的增加而增加，反之亦然。当 BPA 浓度为 5ppm 且生物量为 0.9g 时，去除效率超过 90%。结论是满江红能够通过植物降解从水溶液中去除 BPA。由于去除 BPA 的传统方法需要高成本和能源，因此满江红的植物修复作为一种自然处理系统可以解决这些问题，并且是去除 BPA 的一种有用且有益的方法。
