تحقیق سلنیوم و اصلاح آلودگی آن در خاک

فهرست:

فصل اول- خصوصیات سلنیوم.. 1

مقدمه: 2

خصوصیات فیزیکی و شیمیایی: سلینوم. 3

خصوصیات و اشکال سلنیوم در طبیعت: 8

حضور و تولید سلنیوم در طبیعت... 9

موارد استفاده سلنیوم در صنایع.. 13

فصل دوم  تاثیرات و خطرات سلنیوم.. 14

تاثیرات سلنیوم جانداران. 15

نقش سلنیوم در بدن انسان و بررسی نیاز روزانه به آن. 15

نقش فیزیولوژیکی سلنیوم. 16

خطرات مصرف بیش از حد سلنیوم. 19

خطرات مصرف زیاد سلنیوم برای سلامتی.. 23

خطرات کمبود سلنیوم در بدن. 31

روش اول: تزریق سلنیوم. 35

روش دوم: د ادن سلنیوم خوراکی.. 35

نمونه هایی از خواراکیهای حاوی سلنیوم زیاد. 37

فصل سوم- آلودگی سلنیوم و نحوه از بین بردن آن. 39

نمونه هایی از خاکهای حاوی سلنیوم زیاد. 40

غلظت سلنیوم در خاک... 40

آلودگی سلنیوم در خاک... 46

نحوه از بین بردن آلودگی به روش گیاه پالایی.. 48

معرفی برخی از گونه ها و گیاهان مفید در phytoremediation.. 52

بررسی و نتایج آزمایشهای مربوط به Phytoremediation.. 56

وارد شدن علم بیوتکنولوژی در phytoremediation.. 59

نتایج و بحث... 61

منابع و ماخذ.. 63

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