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首页> 外文期刊>Phytoprotection >Phytoremediation of hydrocarbon-contaminated soils with emphasis on the effect of petroleum hydrocarbons on the growth of plant species
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Phytoremediation of hydrocarbon-contaminated soils with emphasis on the effect of petroleum hydrocarbons on the growth of plant species

机译：植物对碳氢化合物污染土壤的修复，重点是石油碳氢化合物对植物物种生长的影响

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To date, many developing countries such as Iran have almost completely abandoned the idea of decontaminating oil-polluted soils due to the high costs of conventional (physical/chemical) soil remediation methods. Phytoremediation is an emerging greentechnology that can become a promising solution to the problem of decontaminating hydrocarbon-polluted soils. Screening the capacity of native tolerant plant species to grow on aged, petroleum hydrocarbon-contaminated soils is a key factor for successful phytoremediation. This study investigated the effect of hydrocarbon pollution with an initial concentration of 40 000 ppm on growth characteristics of sorghum (Sorghum bicolor) and common flax (Linum usitatissumum), At the end of the experiment, soil samples in which plant species had grown well were analyzed for total petroleum hydrocarbons (TPHs) removal by GC-FID. Common flax was used for the first time in the history of phytoremediation of oil-contaminated soil. Both species showed promising remediation efficiency in highly contaminated soil; however, petroleum hydrocarbon contamination reduced the growth of the surveyed plants significantly. Sorghum and common flax reduced TPHs concentration by 9500 and 18500 mg kg (1), respectively, compared with the control treatment.
机译：迄今为止，由于常规（物理/化学）土壤修复方法的成本高昂，许多发展中国家（如伊朗）几乎完全放弃了对油污土壤进行净化的想法。植物修复是一种新兴的绿色技术，可以成为解决污染烃污染土壤的有前途的解决方案。筛选原生耐性植物物种在老化，石油烃污染的土壤上生长的能力是成功进行植物修复的关键因素。这项研究调查了初始浓度为40000 ppm的碳氢化合物污染对高粱（双色高粱）和普通亚麻（Linum usitatissumum）的生长特性的影响，在实验结束时，土壤中植物物种生长良好的样品通过GC-FID分析去除的总石油烃（TPHs）。在油污染土壤的植物修复史上，首次使用了普通亚麻。两种物种在高度污染的土壤中均表现出令人满意的修复效率。但是，石油碳氢化合物污染显着降低了被调查植物的生长。与对照相比，高粱和普通亚麻分别将TPHs浓度降低了9500和18500 mg kg（1）。

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