نوع مقاله : مقاله پژوهشی
نویسندگان
1 پژوهشکده کاربرد پرتوها، پژوهشگاه علوم و فنون هستهای، سازمان انرژی اتمی ایران، صندوق پستی: 8486-11365، تهران- ایران
2 پژوهشکده کشاورزی هستهای، پژوهشگاه علوم و فنون هستهای، صندوق پستی: 1498-31465، کرج - ایران
3 شرکت سوخت رآکتورهای هستهای ایران، صندوق پستی: 81465-1957، اصفهان- ایران
4 پژوهشکده چرخه سوخت هستهای، پژوهشگاه علوم و فنون هستهای، سازمان انرژی اتمی ایران، صندوق پستی: 8486-11365، تهران- ایران
کلیدواژهها
عنوان مقاله English
نویسندگان English
Today, phytoremediation is recognized as one of the most cost-effective and environmentally friendly methods for removing pollutants from soil. This study focused on investigating the phytoremediation capabilities of Conyza canadensis (L) Cronq in removing uranium from saline soil. Soil samples were collected from the nuclear area of Isfahan, with contamination levels of 100, 300, and 500 mg/kg of uranium. The seeds were germinated in a suitable substrate and then transplanted into pots containing the contaminated soil. The plants were then cultivated in a greenhouse for one month, and the amount of uranium accumulation in various parts of the plant was determined using the ash method. Results indicated that as the concentration of uranium in the soil increased, so did the accumulation of uranium in the plant. The study revealed a direct correlation between the amount of uranium accumulation in the plant and the soil's texture and electrical conductivity (EC). The highest accumulation was found in the plant's stem, reaching 3633 mg/kg. Conyza canadensis (L) Cronq demonstrated the ability to accumulate over 1000 mg/kg of uranium in different parts of the plant, with transfer factors exceeding one. Therefore, Conyza canadensis (L) Cronq shows promise as a suitable plant for phytoremediation of saline soils.
کلیدواژهها English