Comparison of phytoremediation, bioaugmentation and natural attenuation for remediating saline soil contaminated by heavy crude oil

Cai, Bin; Ma, Jie; Yan, Guangxu; Dai, Xiaoli; Li, Min; Guo, Shaohui

doi:10.1016/j.bej.2016.04.018

Cited by 61 publications

(30 citation statements)

References 44 publications

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“…Economical, efficient and environment‐friendly bioremediation has been widely applied to deal with PH contamination . Bioremediation methods for PH, including phytoremediation and microbial remediation technology, have shown great research and application value . In particular, microbial remediation technology has exhibited high restoration efficiency in the remediation of PH pollution.…”

Section: Introductionmentioning

confidence: 99%

“…10 Bioremediation methods for PH, including phytoremediation and microbial remediation technology, have shown great research and application value. 11 In particular, microbial remediation technology has exhibited high restoration efficiency in the remediation of PH pollution. During the microbial remediation process, PH components are absorbed, degraded and transformed in the contaminated system.…”

Section: Introductionmentioning

confidence: 99%

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Microbial community dynamics and functional responses that contribute to tolerance of high concentrations of petroleum hydrocarbon

Cui

Liu²,

et al. 2020

J of Chemical Tech & Biotech

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BACKGROUND It is a common problem that high‐concentration petroleum hydrocarbon (hc‐PH) is difficult to degrade and remove using biological methods. RESULTS In this study, when the concentrations of petroleum hydrocarbon (PH) were increased from 972.4 ± 40.3 to 6953.8 ± 294.3 mg L−1, all degradation rates of PH by activated sludge (AS) were beyond 79%. However, the degradation rate of hc‐PH (from 9958.3 ± 401.6 to 19 953.3 ± 896.5 mg L−1) by AS was significantly lower than that of low‐concentration petroleum hydrocarbon (lc‐PH) (from 972.4 ± 40.3 to 6953.8 ± 294.3 mg L−1). Meanwhile, the heterotrophic microorganism number and bacterial community diversity in the hc‐PH environment were lower than those in the lc‐PH environment. Sequencing results of the bacterial community showed that the dominant bacterial community of AS was stable and composed by the genera Pseudomonas, Acinetobacter and Burkholderia‐Paraburkholderia in the hc‐PH condition. Moreover, aimed to enhance the tolerance to hc‐PH stress, the relative abundances of microbial community functions of environmental adaptation, membrane transport, replication and repair were increased. However, the digestive system, circulatory system and endocrine system of the microbial community were significantly disturbed by hc‐PH, which eventually caused the degradation rate of PH by AS to decrease significantly. CONCLUSION Thus the decrease of microbial community diversity and tolerance ability can be regarded as the main limiting factors to enhance the degradation rate of hc‐PH by microorganisms. © 2019 Society of Chemical Industry

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Microbial community dynamics and functional responses that contribute to tolerance of high concentrations of petroleum hydrocarbon

Cui

Liu²,

et al. 2020

J of Chemical Tech & Biotech

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“…Further investigation revealed that fluctuating water contents increased anthracene availability, contributing to increased removal [15]. It can be speculated that the large salt content in soil with EC 146 dS m -1 dispersed the soil particles in such a way that the PAHs were not physically protected and became available for degradation [36]. Consequently, the removal of PAHs was not inhibited by salts in soil with EC 146 dS m ), which renders it only slowly available for microbial degradation [2].…”

Section: Discussionmentioning

confidence: 99%

Dissipation of Phenanthrene and Anthracene from Soil with Increasing Salt Content Amended with Wastewater Sludge

Fernández-Luqueño

Cabrera-Lazaro

Corlay-Chee

et al. 2017

Pol. J. Environ. Stud.

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The removal of PAHs was stimulated by wastewater sludge in an alkaline saline soil of the former Lake Texcoco, but not always to the same extent. We investigated how a varying electrolytic conductivity (EC) affected the removal of phenanthrene (PHEN) and anthracene (ANTHR) from wastewater sludge-amended soils. Soil with EC 6, 30, 80, and 146 dS m -1 was contaminated with PHEN and ANTHR and amended with or without wastewater sludge, while emissions of CO 2 and concentrations of ammonium, nitrite, and nitrate were monitored. A decrement on the concentrations of PHEN and ANTHR was observed and was faster in soil with EC 6 dS m -1 than in soil with EC 30 dS m -1 and 80 dS m -1, and was slower than in soil with EC 146 dS m -1 . Adding wastewater sludge to soil reduced the concentration of PHEN and ANTHR in soil after 56 days. Spiking soil with PAHs or amending it with wastewater sludge increased the CO 2 emission rate, but decreased at higher EC. The concentration of NO 3 -decreased when soil was spiked with PAHs and amended with sludge, except in soil with EC 146 dS m -1. It was found that the removal of PAHs was not inhibited by salt content and a principal component analysis indicated that none of the measured soil characteristics, i.e., pH, EC, particle size distribution, water-holding capacity, or organic C content predicted the removal of ANTHR or PHEN from contaminated soil. The application of wastewater sludge increased the dissipation of PHEN and ANTHR after 56 days.

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“…Björklöf et al 2008, Kristensen et al 2015 or include all fractions (total petroleum hydrocarbons) (e.g. Cai et al 2016, Yu et al 2011. The biodegradation rate can be calculated by accounting for the duration of the experiment and the concentration of petroleum hydrocarbons in the environmental compartment in question.…”

Section: Commonly Used Methods For Chemical Analysismentioning

confidence: 99%

Heavy Fuel Oil (HFO)

Fritt-Rasmussen¹,

Wegeberg²,

Gustavson³

et al. 2018

TemaNord

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Comparison of phytoremediation, bioaugmentation and natural attenuation for remediating saline soil contaminated by heavy crude oil

Cited by 61 publications

References 44 publications

Microbial community dynamics and functional responses that contribute to tolerance of high concentrations of petroleum hydrocarbon

Microbial community dynamics and functional responses that contribute to tolerance of high concentrations of petroleum hydrocarbon

Dissipation of Phenanthrene and Anthracene from Soil with Increasing Salt Content Amended with Wastewater Sludge

Heavy Fuel Oil (HFO)

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