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| 羊八井地热区典型植物对氟的吸附富集特征探究 |
| Adsorption and Accumulation of Fluorine by Typical Plants in Yangbajing Geothermal Zone |
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| DOI： |
| 中文关键词: 氟 植物吸附 地热水 土壤 |
| 英文关键词: Fluorine Plant adsorption Geothermal water Soils |
| 基金项目:西藏大学大学生创新训练基金资助项目(2018XCX004) |
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| 摘要点击次数: 748 |
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| 中文摘要: |
| 采用水浴提取法处理羊八井地热区土壤和植物样品中可溶性氟，并用离子选择性电极法测定提取液及地热水中的氟。结果表明，地热水中氟离子最高为162 mg/L，土壤和植物中水溶性氟分别为347 mg/kg~937 mg/kg和189 mg/kg~164 mg/kg。氟离子在不同植物中的分布差异较大，嵩草属植物富集氟离子的能力最强，故可利用植物修复技术对高氟地热水、土壤净化处理，以降低氟污染。 |
| 英文摘要: |
| Soluble fluorine in the soil and plants from Yangbajing geothermal area were extracted by water bath， the extracting solution and the water samples from hot spring were determined by ion selective electrode method. Results showed that the highest concentration of fluorine ion in geothermal water was 16.2 mg/L， the soluble fluorine in soil and plants were 3.47 mg/kg~9.37 mg/kg and 1.89 mg/kg~16.4 mg/kg， respectively. The distribution of fluorine ion in different plants was quite different. Artemisia plants had the strongest ability in accumulating fluorine ion. So phytoremediation could be used in purifying high fluorine contaminated geothermal water and soil. |
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