مقایسه گیاه پالایی شمعدانی و کلم زینتی در حذف آلاینده‌های نفتی و فلزات سنگین سرب و کادمیم
محورهای موضوعی : آلودگی های محیط زیست
شهرزاد خرم نژادیان
1
*
,
سمیرا عابدینی
2
1 - Department of environment, Damavand Branch, Islamic Azad University, Damavand, Iran
2 - گروه محیط زیست، واحد دماوند ، دانشگاه آزاد اسلامی، دماوند، ایران .
کلید واژه: گیاه پالائی, فلزات سنگین, هیدروکربن نفتی, خاک,
چکیده مقاله :
مقدمه: آلودگی خاک به هیدروکربنهای نفتی و فلزات سنگین از مشکالت مربوط به جوامع صنعتی میباشد. روشهای متعددی برای حذف آالیندههای از خاک وجود دارد. گیاه پاالیی روشی همگام با محیط زیست است که با استفاده از گیاهان آالیندهها از خاک حذف میگردند. هدف از این تحقیق بررسی پاکسازی خاک از آلودگی های نفتی و همچنین فلزات سنگین) سرب و کادمیم( با استفاده از دو گیاه زینتی کلم زینتی و شمعدانی معطر بود. مواد و روشها: تعداد 40 نمونه شاااام 20 نمونه خاک و 20 گیاه انتخاب شااادند. خاکها در ساااه رده پا ) شااهد(، نیمه آلوده و کامالً آلوده انتخاب شادند. 8 هیدروکربن و دوفلز سانگین مورد بررسای قرار گرفتند. از دساتگاه HPLC جهت سانشش فلزات سانگین اساتفاده شاد. برای بررسای هیدروکربنهای نفتی از دساتگاه اسپکتروفتومتر استفاده شد. واژههای کلیدی: گیاه پاالئی، فلزات سنگین، هیدروکربن نفتی، خاک نتایج و بحث: بیشاااترین میزان تشمع در تشمع هیدروکربن در شااامعدانی در خاک نیمه آلوده مربوط به تترادکان )021.Kg16/mg ) در بافت خشاا و اثری از تشمع تری دکان و پنتادکان در بافت تازه و خشاا شاامعدانی دیده نشااد. در کلم زینتی بیشااترین مقدار تشمع مربوط به دکان ) 69.Kg19/mg )در بافت تازه و کمترین میزان تشمع مربوط به نونان)Kg/mg 659.0 )در بافت خش دیده شد. نتیجهگیری: نتایج این تحقیق نشاان داد که هر دو گیاه زینتی بکار رفته در تحقیق برای گیاهپاالیی مناسا بودند. در حذف آلودگیهای نفتی، گیاه شمعدانی معطر، عملکردی بهتری از خود ن شان داد. دا شته ا ست. کلم زینتی در حذف فلز سنگین کادمیوم راندمان باالتری داشت.
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Introduction: Soil pollution with petroleum hydrocarbons and heavy metals is one of the problems related to industrial societies. There are several methods to remove pollutants from the soil. Phytoremediation is a method in sync with the environment that uses plants to remove pollutants from the soil. The purpose of this research was to investigate the cleaning of soil from oil pollution and also heavy metals using two ornamental plants, ornamental cabbage and aromatic geranium.
Materials and Methods: 40 samples including 20 soil samples and 20 plants were selected. Soils were selected in three categories: clean (control), semi-contaminated and completely contaminated. Soils were selected in three categories: clean (control), semi-contaminated and completely contaminated. HPLC device was used to measure heavy metals. A spectrophotometer was used to measure the total petroleum hydrocarbons.
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Results and Discussion: The highest amount of hydrocarbon accumulation in geranium in semi-contaminated soil is related to tetradecane (16.021 mg/Kg) in dry tissue and there was no effect of tridecane and pentadecane accumulation in fresh and dry geranium tissue. In ornamental cabbage, the highest amount of accumulation related to decan (19.69 mg/Kg) was seen in fresh tissue and the lowest amount of accumulation related to nonan (0.659 mg/Kg) was seen in dry tissue. |
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Conclusion: The results of this research showed that both ornamental plants used in the research were suitable for herbal treatment. In removing oil pollution, the aromatic geranium plant showed a better performance. had. Ornamental cabbage had a higher efficiency in removing the heavy metal cadmium. |
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