Bioremediation of petroleum hydrocarbon contaminated soil by Rhodobacter sphaeroides biofertilizer and plants

Journal Title: Pakistan Journal of Pharmaceutical Sciences - Year 2015, Vol 28, Issue 5

Abstract

 Bio-augmentation is a promising technique for remediation of polluted soils. This study aimed to evaluate the bio-augmentation effect of Rhodobacter sphaeroides biofertilizer (RBF) on the bioremediation of total petroleum hydrocarbons (TPH) contaminated soil. A greenhouse pot experiment was conducted over a period of 120 days, three methods for enhancing bio-augmentation were tested on TPH contaminated soils, including single addition RBF, planting, and combining of RBF and three crop species, such as wheat (W), cabbage (C) and spinach (S), respectively. The results demonstrated that the best removal of TPH from contaminated soil in the RBF bio-augmentation rhizosphere soils was found to be 46.2%, 65.4%, 67.5% for W+RBF, C+RBF, S+RBF rhizosphere soils respectively. RBF supply impacted on the microbial community diversity (phospholipid fatty acids, PLFA) and the activity of soil enzymes, such as dehydrogenase (DH), alkaline phosphatase (AP) and urease (UR). There were significant difference among the soil only containing crude oil (CK), W, C and S rhizosphere soils and RBF bio-augmentation soils. Moreover, the changes were significantly distinct depended on crops species. It was concluded that the RBF is a valuable material for improving effect of remediation of TPH polluted soils.

Authors and Affiliations

Haihua Jiao , Jinxue Luo , Yiming Zhang , Shengjun Xu , Zhihui Bai , Zhanbin Huang

Keywords

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  • EP ID EP122825
  • DOI -
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How To Cite

Haihua Jiao, Jinxue Luo, Yiming Zhang, Shengjun Xu, Zhihui Bai, Zhanbin Huang (2015). Bioremediation of petroleum hydrocarbon contaminated soil by Rhodobacter sphaeroides biofertilizer and plants. Pakistan Journal of Pharmaceutical Sciences, 28(5), 1881-1886. https://europub.co.uk/articles/-A-122825