Phragmites stimulation and natural attenuation of indigenous microbial community accelerated bioremediation of oil contaminated soil

Yu, Wenhe; Song, Jiayu; Chen, Changzhao; Song, Quanwei; Zhao, Chaocheng; Li, Xingchun; Chen, Hongkun

doi:10.1080/10916466.2019.1570251

Cited by 3 publications

(2 citation statements)

References 11 publications

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“…Previous research has analysed the single effects of the above-mentioned techniques on the bioremediation of PAH-contaminated soils (Yu et al 2019). Accordingly, we hypothesised the combined use of such techniques is more effective, which to our knowledge has not been investigated previously.…”

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confidence: 92%

“…For example, in bioremediation with Pseudomonas aeruginosa, the production of siderophore and biosurfactant increases the bioavailability and solubility of organic compounds and reduces soil PAH pollutants (Das and Mukherjee 2007). Research has indicated the positive effects of bioaugmentation and biostimulation in bioremediation of the PAH contaminated soils (Suja et al 2014).Previous research has analysed the single effects of the above-mentioned techniques on the bioremediation of PAH-contaminated soils (Yu et al 2019). Accordingly, we hypothesised the combined use of such techniques is more effective, which to our knowledge has not been investigated previously.…”

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confidence: 95%

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Different biological strategies for the bioremediation of naturally polluted soils

Naeim¹,

Baharlouei²,

Ataabadi³

2021

PLANT SOIL ENVIRON

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Finding an appropriate method with the highest rate of polycyclic aromatic hydrocarbon (PAH) removal from naturally polluted soils is an important research issue. A pot factorial experiment (using contaminated soil samples from the Isfahan Refinery, Iran) was conducted in a 90-day period to compare the following bioremediation strategies: (1) natural attenuation (NA): the inherent ability of soil for bioremediation; (2) bioaugmentation (BA): inoculating soil with PAH degrading microbes Marinobacter hydrocarbonoclasticus; (3) biostimulation (BS): using N, P and K nutrients for the stimulation of bioremediating soil bacteria to achieve the C : N : P ratio of 100 : 10 : 1, and(4) bioaugmentation + biostimulation (BS + BA). Treatments NA (22.8%) and BA + BS (63.9%) resulted in the least and the highest rate of PAH removal from the soil. The 2–4 ring compounds had a significantly (P ≤ 0.05) higher rate of degradation than the 5–6 ring compounds. The highest rates were resulted by fluorene (76.41%) and acenaphthylene (72.28%) using the BA + BS treatment. However, the lowest degradation rates were resulted by indeno (1,2,3-cd) pyrene (10.05%), benzo [b] fluoranthene (10.17%), benzo (g, h, i) perylene (12.53%), and benzo [k] fluoranthene (13.67%), using NA treatment. The BA + BS treatments are the most effective method for the bioremediation of PAH polluted soils.

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confidence: 92%

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confidence: 95%