Phytoremediation of Petroleum-Polluted Soils

Aisien, Felix Aibuedefe; Aisien, Eki Tina; Oboh, Innocent O.

doi:10.1007/978-3-319-10395-2_16

Cited by 11 publications

(5 citation statements)

References 53 publications

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“…The phytoremediation has been proven as an effective technique for remediation of crude oil contaminated soil 2 , 3 . It has also been reported as a green clean technology and is alternative to physical and chemical methods of remediation 4 .…”

Section: Introductionmentioning

confidence: 99%

Enzymatic defense of Cyperus brevifolius in hydrocarbons stress environment and changes in soil properties

Chakravarty

Deka

2021

Sci Rep

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Hydrocarbons or crude oil contamination of soil is still a burning problem around the globe. The herbs competent that are to survive in hydrocarbons contaminated habitats have some adaptive advantages to cope up with the adverse situations prevailing in that environment. In the present study, the adaptive response of Cyperus brevifolius in the heavily polluted soil with crude oil has been investigated in terms of survivability, changes in productivity, antioxidants, phytochemicals and functional group pro files of the plant species. Besides, changes in enzymes, beneficial bacterial population and physico-chemical conditions of contaminated soil were also studied during 60 days of experimental trials. The results showed significant enhancement in activities of soil dehydrogenase, urease, alkaline phosphatase, catalase, and amylase whereas reduction in cellulase, polyphenol oxidase and peroxidase activities. There was a significant increase in nitrogen fixing, phosphate and potassium solubilizing bacterial population, improvement in physico-chemical conditions and a decrease in total oil and grease (TOG) levels. Besides there was significant variations in the productivity parameters and antioxidant profiles of Cyperus brevifolius in hydrocarbons stress condition suggesting enzymatic defense of the herb. The fourier-transform infrared (FT-IR) analysis indicated uptake and metabolism of some hydrocarbon components by the experimental plant from the hydrocarbons polluted soil.

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Section: Introductionmentioning

confidence: 99%

Enzymatic defense of Cyperus brevifolius in hydrocarbons stress environment and changes in soil properties

Chakravarty

Deka

2021

Sci Rep

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“…Although the concentrations of Al and Mn at the start of the experiment were low (0.05 ± 0.2 and 0.18 ± 0.3 mg/L, respectively), Bokhari et al 44 also observed that metal removal percentage was high (up to 80%) in Lemna minor L. despite a very low initial metal concentration. Aisien et al 45 observed metal concentrations as high as 4870 mg/kg, 4150 mg/ kg and 710 mg/kg for Zn, Pb and Cd, respectively, while a BCF of up to 1674 was recorded for Zn. Likewise, Rai et al 46 recorded a BCF as high as 36 500 for Cd, confirming Spirodella polyrrhiza as an excellent hyperaccumulator for heavy metals.…”

Section: Discussionmentioning

confidence: 99%

A mesocosm study on the use of clay minerals to improve heavy metal phytoremediation capacity of vetiver grass (Chrysopogon zizanioides L. Roberty)

Otunola,

Aghoghovwia,

Thwala

et al. 2023

S. Afr. J. Sci.

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Fast-paced global industrialisation due to population growth poses negative environmental implications, such as pollution by heavy metals. We assessed the application of vetiver grass assisted by clay minerals for the remediation of soil and water contaminated by multiple metals in a mesocosm study. The technique was tested previously in a greenhouse study that confirmed the effectiveness of 2.5% (w/w) attapulgite and 2.5% (w/v) bentonite to improve vetiver grass remediation of soil and water contaminated by multiple metals. At the end of the experiment, the total accumulation of Co, Cr, Cu, Ni and Zn by vetiver grass from the soil was 1.8, 38.1, 19.0, 7.2 and 55.4 mg/kg, respectively, while in water, the total metal accumulation of Al and Mn by vetiver grass was 4534.5 and 104.5 mg/kg, respectively. The results confirm the effectiveness of attapulgite and bentonite as amendments to improve the remediation potential of vetiver in soil and water under natural conditions. Metal accumulation was generally higher in the roots than in shoots. We found the removal efficiency in the soil to be in the order Zn > Cr > Cu > Ni > Co and Al > Mn in water. Results also demonstrated that heavy metal accumulation was even better under natural conditions than in the greenhouse study. For example, Zn accumulation increased from 0.4 mg/kg in the greenhouse study to 55.4 mg/kg in the outdoor study. This study validates the application of bentonite and attapulgite-assisted phytoremediation for heavy metal contaminated soil and water.

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“…This could be as a result of plant enzyme influencing the fixation of the contaminant with soil organic matter thereby hampering mobility and bioavailability 35 . Phytostabilization is common with remediation of metal-polluted soil than petroleum hydrocarbon 36 , 37 . Several phytoremediation studies reported a decrease in TPH within the soil rather than concentrating and fixing it within the soil matrix 35 , 38 .…”

Section: Soil Remediation Technologymentioning

confidence: 99%

Cost reduction strategies in the remediation of petroleum hydrocarbon contaminated soil

Ahmed¹,

Nwaichi²,

Ugwoha³

et al. 2022

Open Res Africa

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Petroleum hydrocarbon spill on land pollutes soil and reduces its ecosystem. Hydrocarbon transport in the soil is aided by several biological, physical, and chemical processes. However, pore characteristics play a major role in the distribution within the soil matrix. Restoring land use after spills necessitates remediation using cost-effective technologies. Several remediation technologies have been demonstrated at different scales, and research is ongoing to improve their performances towards the reduction of treatment costs. The process of removing the contaminants in the soil is through one or a combination of containment, separation, and degradation methods under the influence of biological, physical, chemical, and electrically-dominated processes. Generally, performance improvement is achieved through the introduction of products/materials and/or energy. Nevertheless, the technologies can be categorized based on effectiveness period as short, medium, and long term. The treatment cost of short, medium, and long-term technologies are usually in the range of $39 – 331/t (/tonne), $22 – 131/t, and $8 – 131/t, respectively. However, the total cost depends on other factors such as site location, capital cost, and permitting. This review compiles cost-saving strategies reported for different techniques used in remediating petroleum hydrocarbon polluted soil. We discuss the principles of contaminant removal, performance enhancing methods, and the cost-effectiveness analysis of selected technologies.

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Phytoremediation of Petroleum-Polluted Soils

Cited by 11 publications

References 53 publications

Enzymatic defense of Cyperus brevifolius in hydrocarbons stress environment and changes in soil properties

Enzymatic defense of Cyperus brevifolius in hydrocarbons stress environment and changes in soil properties

A mesocosm study on the use of clay minerals to improve heavy metal phytoremediation capacity of vetiver grass (Chrysopogon zizanioides L. Roberty)

Cost reduction strategies in the remediation of petroleum hydrocarbon contaminated soil

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