Combination of biochar amendment and phytoremediation for hydrocarbon removal in petroleum-contaminated soil

Han, Tao; Zhao, Zhikai; Bartlam, Mark; Wang, Yingying

doi:10.1007/s11356-016-7236-6

Cited by 52 publications

(20 citation statements)

References 54 publications

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“…Additionally, in biochar amended soils, the TPH concentration was found to be 15-10 % lower compared to un-amended soil samples, confirming that biochar was able to effectively lock the organic contaminants. Comparable to previous studies, compost addition was overall more efficient in promoting biodegradation than biochar (Cai et al, 2010;Han et al, 2016;Zhang et al, 2010).…”

Section: Soil Characteristicscontrasting

confidence: 65%

Linking bioavailability and toxicity changes of complex chemicals mixture to support decision making for remediation endpoint of contaminated soils

Cipullo

Negrin

Claveau

et al. 2019

Science of The Total Environment

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A six-month laboratory scale study was carried out to investigate the effect of biochar and compost amendments on complex chemical mixtures of tar, heavy metals and metalloids in two genuine contaminated soils. An integrated approach, where organic and inorganic contaminants bioavailability and distribution changes, along with a range of microbiological indicators and ecotoxicological bioassays, was used to provide multiple lines of evidence to support the risk characterisation and assess the remediation end-point. Both compost and biochar amendment (p = 0.005) as well as incubation time (p = 0.001) significantly affected the total and bioavailable concentrations of the total petroleum hydrocarbons (TPH) in the two soils. Specifically, TPH concentration decreased by 46% and 30% in Soil 1 and Soil 2 amended with compost. These decreases were accompanied by a reduction of 78% (Soil 1) and 6 % (Soil 2) of the bioavailable hydrocarbons and the most significant decrease was observed for the medium to long chain aliphatic compounds (EC16-35) and medium molecular weight aromatic compounds (EC16-21). Compost amendment enhanced the degradation of both the aliphatic and aromatic fractions in the two soils, while biochar contributed to lock the hydrocarbons in the contaminated soils. Neither compost nor biochar affected the distribution and behaviour of the heavy metals (HM) and metalloids in the different soil phases, suggesting that the co-presence of heavy metals and metalloids posed a low risk. Strong negative correlations were observed between the bioavailable hydrocarbon fractions and the ecotoxicological assays suggesting that when bioavailable concentrations decreased, the toxicity also

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Section: Soil Characteristicscontrasting

confidence: 65%

Linking bioavailability and toxicity changes of complex chemicals mixture to support decision making for remediation endpoint of contaminated soils

Cipullo

Negrin

Claveau

et al. 2019

Science of The Total Environment

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“…Although several plant species have been shown to be effective for the removal of PHs from contaminated soils [1,12], the improvement in the effectiveness of phytoremediation is still a challenge. It has been well documented those microbial activities and physicochemical properties of soil have a marked impact on the effectiveness of phytoremediation of PHs [13,14]. A vast variety of microbial communities such as fungi, algae and bacteria take part in the complete mineralization of PHs [15].…”

Section: Introductionmentioning

confidence: 99%

“…Additionally, the plants in association with microbes show better physical and physiological responses (i.e., seedling emergence, root/shoot biomasses, root/shoot length and chlorophyll contents etc.) and enhance the PHs degradation [13,29,30].…”

Section: Introductionmentioning

confidence: 99%

Biochar and Bacillus sp. MN54 Assisted Phytoremediation of Diesel and Plant Growth Promotion of Maize in Hydrocarbons Contaminated Soil

et al. 2021

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Contamination by petroleum hydrocarbons (PHs) is a great threat to environment due to the higher persistence and bio-toxicity of PHs. Therefore, removal of PHs from contaminated environment and strategies to reduce their toxic effects on living organisms are crucial for environmental safety and human health. The toxic effects of PHs from the polluted soil can be reduced by the addition of microbes and biochar. In this study, a pot trial was carried out to evaluate the effects of sugarcane bagasse (SB) biochar and Bacillus sp. MN54 addition on phytoremediation of PHs and growth of maize (Zea mays L.) in soil artificially contaminated with diesel. Maize seeds were sown in uncontaminated or contaminated (with PHs) soil, treated with biochar and Bacillus sp. MN54. The results revealed that PHs showed significant phytotoxicity to maize plants and the application of strain MN54 and biochar greatly reduced the toxic effects of PHs on plants growth and physiology by increasing the nutrients uptake in PHs contaminated soil. Interestingly, the phytotoxicity of PHs on maize plants was further reduced in the co-supplementation of strain MN54 and biochar. Plants physiological (25–48%) and agronomic (38–47%) attributes were significantly higher as compared to only PHs contaminated soil in the co-supplementation of strain MN54 and biochar. Similarly, nitrogen (41%), phosphorus (43%) and potassium (37%) concentrations were also increased in the co-supplementation of strain MN54 and biochar. Furthermore, maize plants successfully phytoremediate a considerable amount of PHs from soil particularly in the presence of strain MN54 and biochar, and this PHs removal was further enhanced in the co-supplementation of strain MN54 and biochar (i.e., 46% and 77% of initial PHs were removed in unplanted and planted treatments, respectively). The present results indicate that co-supplementation of biochar and Bacillus sp. MN54 could be effective in enhancing the degradation of PHs and improving plant growth in the hydrocarbons contaminated soil.

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“…It has been reported that plants are effective in degradation, transformation, assimilation, metabolism and detoxification of hazardous pollutants from soils (Cai et al, 2010). The efficacy of plants for removal of crude oil pollutants has already been established by several workers around the globe (Han et al, 2016;Cheng et al, 2017). For example, some plants such as tall fescue, fire phoenix and maize have also been used for remediation of crude oil contaminated soil in recent past (Liu et al, 2014a,b;Liao et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Phytoremediation potential of some abundantly growing indigenous herbs of crude oil contaminated sites

Akram¹,

Deka²

2021

JEB

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Aim: To study the total oil and grease (TOGs) removal potential of three abundant herb species of crude oil contaminated sites, namely Xanthium strumarium (L.), Ageratum conyzoides (L.) and Polygonum hydropiper (L.) from oil contaminated soils. Methodology: The pot experiment was carried out by taking soil samples of crude oil contaminated agricultural field. For each experimental plant, three replicas were maintained and a similar control setup was maintained without plants for comparing the results. Another control set up was maintained in non-contaminated soils to compare the plant growth parameters. Total oil and grease (TOG) contents, physico-chemical profiles of contaminated soil, plant growth/productivity parameters and functional groups were analyzed following the standard methods. Results: The results showed that total oil and grease (TOG) contents decreased significantly after treatments by plants against the initial level and control. Plant height, number of leaves, chlorophyll contents and biomass were found to be lower in all the three plant species that were grown in contaminated soil as against the control treatment. The improved physico-chemical profiles of contaminated soil samples after treatment indicated the positive effect of plants in treated soil samples. FTIR data revealed difference in peak intensities and the presence of petroleum hydrocarbons in plants that were grown in oil-contaminated soils. Interpretation: The herb species Xanthium strumarium, Ageratum conyzoides and Polygonum hydropiper showed the potential for removal of hydrocarbons from crude oil contaminated soil. Key words: Crude oil, Hydrocarbons, Indigenous herbs, Phytoremediation

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Combination of biochar amendment and phytoremediation for hydrocarbon removal in petroleum-contaminated soil

Cited by 52 publications

References 54 publications

Linking bioavailability and toxicity changes of complex chemicals mixture to support decision making for remediation endpoint of contaminated soils

Linking bioavailability and toxicity changes of complex chemicals mixture to support decision making for remediation endpoint of contaminated soils

Biochar and Bacillus sp. MN54 Assisted Phytoremediation of Diesel and Plant Growth Promotion of Maize in Hydrocarbons Contaminated Soil

Phytoremediation potential of some abundantly growing indigenous herbs of crude oil contaminated sites

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