Volume 8, Issue 7 (2-2013)
J Health Syst Res 2013, 8(7): 1272-1279 |
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Alavi Bakhtiarvand S N, Parseh I, Ahmadimoghadam M, Jafarzadeh N. بررسی کارایی گیاه پالایی برای آلایندههای نفتی در مقیاس گلخانه در خاک رسی و شور. J Health Syst Res 2013; 8 (7) :1272-1279
URL: http://hsr.mui.ac.ir/article-1-485-en.html
URL: http://hsr.mui.ac.ir/article-1-485-en.html
1- Assistant Professor, Department of Environmental Health Engineering, Research Center of Environmental Technology, Ahwaz Jondishapour University of Medical Sciences, Ahwaz, Iran
2- Department of Environmental Health, School of Public Health, Jundishapur University of Medical Sciences, Ahwaz, Iran
3- Associate Professor, Department of Environmental Health Engineering, Research Center of Environmental Technology, Ahwaz Jondishapour University of Medical Sciences, Ahwaz, Iran
2- Department of Environmental Health, School of Public Health, Jundishapur University of Medical Sciences, Ahwaz, Iran
3- Associate Professor, Department of Environmental Health Engineering, Research Center of Environmental Technology, Ahwaz Jondishapour University of Medical Sciences, Ahwaz, Iran
Abstract: (1024 Views)
Background: Petroleum contaminated soil is an environmental problem that affects human health. Phytoremediation is a cost-effective method for removal of petroleum from soil. This study evaluated the effects of the plant and nutrients on the removal of total petroleum hydrocarbons (TPHs) from the soil. Methods: Soils were collected from Ahwaz desalting unit No.2 and then polluted with 2.5% w/w of crude oil. Microbial number and residual TPHs of the studied pot experiments were determined at day 0 and 90. TPHs and heterotrophic bacterial number were measured by gas chromatography (GC) and heterotrophic plate count (HPC) method, respectively. Findings: The average percentage of TPH removal in the rhizosphere soil (≈ 20%) was higher than those in the non-rhizosphere soil (≈ 7%). In addition, the average number of heterotrophic bacteria in the rhizosphere soil (7.14 CFU/g) was higher than in the non-rhizosphere soil (6.16 CFU/g). Moreover, the TPH removal and microbial number in the soil that received nutrient were higher than in the free-nutrient soil. Conclusion: Although high clay and salinity of the soil had an inhibitive effect on phytoremediation efficiency, results showed a native plants performed phytoremediation properly even in improper condition of environment.
Type of Study: Research |
Subject:
education health and promotion
Received: 2020/07/16 | Accepted: 2013/02/15 | Published: 2013/02/15
Received: 2020/07/16 | Accepted: 2013/02/15 | Published: 2013/02/15
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