The Use of Goosegrass (Eleusine indica) to Remediate Soil Contaminated with Petroleum

Lu, Mang; Zhang, Zhongzhi; Sun, Shanshan; Wei, Xiaofang; Wang, Qinfang; Su, Yirong

doi:10.1007/s11270-009-0190-x

Cited by 47 publications

(20 citation statements)

References 27 publications

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“…After 9 months of plant growth, 43 and 70% decline in APH concentration were observed in soil AC and FC, respectively. Lu et al reported that the concentration of petroleum contamination in the rhizosphere of Eleusine indica was reduced by 47% after 5 months of plant growth while only 11% of reduction was observed for the unplanted soil. Nisa and Rashid observed that the concentration of phenanthrene, pyrene, and benzo[a]pyrene significantly decreased in the soil under 120 days of V .…”

Section: Discussionmentioning

confidence: 99%

Phytoremediation of Petroleum‐Contaminated Soils byVetiveria zizanioides(L.) Nash

Rajaei

Seyedi

2018

CLEAN Soil Air Water

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Phytoremediation of petroleum and its derivatives has frequently been regarded as a practical, eco-friendly alternative to the clean-up of petroleumcontaminated soils. In this study, Vetiveria zizanioides (L.) Nash (vetiver) is shown to efficiently remediate two petroleum-contaminated soils; fresh contamination (FC) with 3500 mg kg À1 aliphatic petroleum hydrocarbons (APH), and aged contamination (AC) with 700 mg kg À1 . An 88.5% reduction in the concentration of APH is observed in both contaminated soils where vetiver are grown for 15 months. Vetiver vegetation also doubled (FC) and tripled (AC) the bioavailability of contaminants as compared with unvegetated soils, as determined by the release of APH into the soil solution. The carbon availability index increased in both vegetated soils (%1), and the microbial biomass carbon shows a three-and five-fold increase in vegetated soils FC and AC, respectively, leading to a fourfold decline in the metabolic quotient. The mRNA level of nosZ gene increased significantly in the soils under vetiver vegetation, and was correlated with the accumulation of APH in the soil solution; this probably demonstrates the role of hydrocarbon bioavailability in promoting biological processes and biodegradation. It is concluded that vetiver vegetation increased hydrocarbons bioavailability and hence raised the extent of biodegradation hydrocarbons in the soil.

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Section: Discussionmentioning

confidence: 99%

Phytoremediation of Petroleum‐Contaminated Soils byVetiveria zizanioides(L.) Nash

Rajaei

Seyedi

2018

CLEAN Soil Air Water

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“…The root system of higher plants is associated not only with soil environment but also with a vast community of metabolically active microorganisms. The living plants create unique habitats on and around the roots where the microbial population is considerably higher than that of root free soil environment (Lu et al 2010). Around 40 % of a plant's photosynthate can be exuded by plant roots into the soil as sugars, organic acids, and aromatic compounds, which are rich in carbon and energy for microorganisms' growth (Khan et al 2013).…”

Section: Bioremediation Technique Using Plantsmentioning

confidence: 99%

A Review on Phytoremediation of Crude Oil Spills

Yavari

Malakahmad

Sapari

2015

Water Air Soil Pollut

102

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Changes in crude oil production and distribution have increased the incidence of oil spills throughout the world. Oil spills often cause destructive effects on aquatic and land ecosystems. The oil spill cleanup and recovery techniques are challenging and usually involve complex mechanical, chemical, and biological methods. Usually, mechanical removal of free oil is utilized as an effective strategy for cleanup in aquatic and terrestrial environments; however, they are expensive and need specialist personnel and equipment. The other commonly used method is the application of chemical materials such as dispersants, cleaners, demulsifiers, biosurfactants, and soil oxidizers. Nevertheless, these reagents can have potential harmful environmental impacts, which may limit their application. As an alternative, bioremediation can offer reduced environment risk; however, the limitations of microbial activity in the soil can make this option unsuitable. One area of bioremediation is phytoremediation, which offers potential for restoring large areas of contaminated ground. Plants are able to remove pollutants through processes such as biodegradation, phytovolatilization, accumulation, and metabolic transformation. This review presents the fate of crude oil spills in aquatic and land ecosystems and their environmental effects. Furthermore, the paper focuses on crude oil phytoremediation and its applications in polluted ecosystems.

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“…The lack of environmental specifications for the restoration of contaminated soils constitutes one of the principal factors of uncertainty with respect to the effectiveness of remediation actions. Although many techniques are effective in reducing the overall hydrocarbon concentration in the soil (Volke and Velasco 2002), these methods do not necessarily restore the physical and chemical properties of the soil that may be affected by petroleum spills, impeding future site use (Adams et al 2008b;Lu et al 2010).…”

Section: Introductionmentioning

confidence: 99%

Effect of crude petroleum on water repellency in a clayey alluvial soil

Marín-García

Adams

Hernández-Barajas

2015

Int. J. Environ. Sci. Technol.

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Water repellency was studied in a clayey soil contaminated with light (36.6°API), medium (27.4°API), and heavy (15.0°API) crude oils at concentrations of 1, 2, 4, and 8 %. Higher water drop penetration times (WDPTs) were observed in dry soil as the density and concentration of petroleum increased, resulting in logarithmic functions which could be modeled from API gravity and oil concentration (R 2 = 0.986). WDPTs varied from 2.1 to 8.7 s with light crude, 11.1 to 44.9 s for medium crude, and 39.4 to 134.5 s for heavy crude. Only heavy crude-contaminated soil, at [2 % resulted in significant hydrophobicity. Critical moisture content in these hydrophobic soils was insignificant at moisture contents [12.8 % at 2 % heavy crude and [14.6 % at 4 % heavy crude. Only at a concentration of 8 % heavy crude was the critical moisture content ([17.2 %) higher than that observed in the field during the dry season (14.8 %). Thus, only (clayey) soil contaminated with very high concentrations of heavy oil is likely to present hydrophobicity in this monsoon climate. This study shows that the development of models to describe soil water repellency may be useful to propose remediation criteria which reduce or avoid the risk of water repellency.

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The Use of Goosegrass (Eleusine indica) to Remediate Soil Contaminated with Petroleum

Cited by 47 publications

References 27 publications

Phytoremediation of Petroleum‐Contaminated Soils byVetiveria zizanioides(L.) Nash

Phytoremediation of Petroleum‐Contaminated Soils byVetiveria zizanioides(L.) Nash

A Review on Phytoremediation of Crude Oil Spills

Effect of crude petroleum on water repellency in a clayey alluvial soil

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