tailieunhanh - Phytoremediation of total petroleum hydrocarbons (TPHs) using plant species in Iran
Plant-based remediation is a relatively new, efficient, and environmentally friendly technology, which can be promising for removing many contaminants like hydrocarbon pollutants. | Research Article Turk J Agric For 34 (2010) 429-438 © TÜBİTAK doi: Phytoremediation of total petroleum hydrocarbons (TPHs) using plant species in Iran Ali Daryabeigi ZAND1, Gholamreza Nabi BIDHENDI2, Nasser MEHRDADI2 1 Department of Environmental Pollution, Environmental Sciences Research Institute, Shahid Beheshti University, ., Tehran - IRAN 2Faculty of Environment, University of Tehran, . Box 14155-6135, Tehran - IRAN Received: Abstract: Plant-based remediation is a relatively new, efficient, and environmentally friendly technology, which can be promising for removing many contaminants like hydrocarbon pollutants. The main objectives of the current study were to investigate the effect of petroleum hydrocarbons with high initial concentration (about by weight) on growth characteristics of maize (Zea mays L.), and tall fescue (Festuca arundinacea) as well as to evaluate the phytoremediation potential of the 2 mentioned plant species in highly contaminated, aged soil. In order to improve the condition of soil nutrients and also study the effect of soil amendment on plant growth, peat amendment was also considered. Soil samples were analyzed for TPH removal by GC-FID. Used plant species showed promising growth behavior in highly contaminated soil. A decrease of TPHs was found over the course of the experiment in all treatments. The maximum removal was obtained in tall fescue, in which tall fescue removed of the initial TPHs from soil. Peat amendment showed positive effect on plant growth on contaminated soil. Results demonstrated that the 2 studied plant species were effective and promising in removing TPHs from contaminated, aged soil. Key words: Phytoremediation efficiency, plant growth, plant-based remediation, total petroleum hydrocarbons Introduction Over the past centuries, several factors, such as rapid growth of population, modern agricultural activities, waste disposal, mining, and industrialization, .
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