Kinetic Monitoring of Bioremediators for Biodegradation of Gasoil-Polluted Soil

Tazangi, Mina Hashemi; Ebrahimi, Soheila; Nasrabadi, Reza Ghorbani; Naeeni, Seyed Alireza Movaheddi

doi:10.1007/s11270-020-04794-6

Cited by 14 publications

(9 citation statements)

References 65 publications

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“…6). In a similar study, Tazangi et al (2020) reported that TPH concentration decreased in all active carbon treatments, and in smaller active carbon sizes (0.05 mm), the minimum degradation rate in 100, 80 and 0 g/kg of soil was observed 12, 16 and 36 after treatment. Silva et al (2021) investigated the biodegradation percentage of oils and greases and aliphatic and polyaromatic hydrocarbons during a 180-day length experiment using three methods: addition of nutrients, biosurfactant-producing bacteria and biosurfactant + nutrients.…”

Section: Tph Biodegradation Percentagesupporting

confidence: 55%

“…In a study conducted by Tazangi et al (2020), it was reported that the degradation of petroleum hydrocarbons in gasoil-polluted soil increased by application of smaller active carbon particles. This may be due to the fact that active carbon acts as an absorbent in soil and allows the pollutant uptake, providing an optimum condition for microorganism growth.…”

Section: Concentration Of Tph In the Polluted Soilmentioning

confidence: 99%

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Bioremediation of total petroleum hydrocarbons in oil sludge-polluted soil using active carbon remediator

Karimpoor

Ebrahimi

Malekzadeh

et al. 2022

Int. J. Environ. Sci. Technol.

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In this study, the effect of different sizes and weights of active carbon as a remediator was evaluated on reduction or removal of petroleum hydrocarbons of a soil polluted by petroleum sludge. The present pilot study was conducted as a split plot in time experiment based on a completely randomized design with three replicates under laboratory conditions for period of 60 days. The experimental treatments included active carbon weights and sizes of 100 g and 0.3 mm (W100S0.3), 100 g and 1.5 mm (W100S1.5), 100 g and 4 mm (W100S4), 150 g and 0.3 mm (W150S0.3), 150 g and 1.5 mm (W150S1.5), 150 g and 4 mm (W150S4) and control (C). Total petroleum hydrocarbon (TPH) and microbial respiration were measured each ten days. The results showed that concentration of TPH decreased with increasing active carbon weight and size. The highest and lowest TPH concentration at all 10-day intervals was associated with control and W150S0.3 treatments. Decreased TPH was accompanied by increased microbial respiration. In general, TPH biodegradation constant (K) increased and half-life times (T 1/2 ) decreased by increasing active carbon application with smaller sizes. The lowest value for TPH biodegradation percentage was associated with W100S4 and W100S1.5 treatments. Active carbon treatments of W150S0.3 and W150S1.5 led the best TPH biodegradation in petroleum sludge-polluted soil. Therefore, active carbon remediator may be applied as a low-cost, efficient and environment-friendly strategy for remediation of petroleum pollution in soil.

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Section: Tph Biodegradation Percentagesupporting

confidence: 55%

Section: Concentration Of Tph In the Polluted Soilmentioning

confidence: 99%

Bioremediation of total petroleum hydrocarbons in oil sludge-polluted soil using active carbon remediator

Karimpoor

Ebrahimi

Malekzadeh

et al. 2022

Int. J. Environ. Sci. Technol.

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“…Remediation kinetics was used to predict when the treatments would achieve the EPA Victoria soil threshold. This can be used to determine the concentration of the contaminants at any given time, which can determine when a threshold would be achieved [ 58 ]. The kinetics equation, R 2 , and half-life are shown in Table S2 , and the R 2 of the different treatments varied between 0.84–0.99, which denotes that almost all the treatments fitted well with first order kinetics.…”

Section: Resultsmentioning

confidence: 99%

Effect of the Application of Ochrobactrum sp.-Immobilised Biochar on the Remediation of Diesel-Contaminated Soil

Dike,

Rani Batra,

Khudur

et al. 2024

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The immobilisation of bacteria on biochar has shown potential for enhanced remediation of petroleum hydrocarbon-contaminated soil. However, there is a lack of knowledge regarding the effect of bacterial immobilisation on biosolids-derived biochar for the remediation of diesel-contaminated soil. This current study aimed to assess the impact of the immobilisation of an autochthonous hydrocarbonoclastic bacteria, Ochrobacterium sp. (BIB) on biosolids-derived biochar for the remediation of diesel-contaminated soil. Additionally, the effect of fertiliser application on the efficacy of the BIB treatment was investigated. Biochar (BC) application alone led to significantly higher hydrocarbon removal than the control treatment at all sampling times (4887–11,589 mg/kg higher). When Ochrobacterium sp. was immobilised on biochar (BIB), the hydrocarbon removal was greater than BC by 5533 mg/kg and 1607 mg/kg at weeks 10 and 22, respectively. However, when BIB was co-applied with fertiliser (BIBF), hydrocarbon removal was lower than BIB alone by 6987–11,767 mg/kg. Quantitative PCR (q-PCR) analysis revealed that the gene related to Ochrobacterium sp. was higher in BIB than in the BC treatment, which likely contributed to higher hydrocarbon removal in the BIB treatment. The results of the q-PCR analysis for the presence of alkB genes and FTIR analysis suggest that the degradation of alkane contributed to hydrocarbon removal. The findings of this study demonstrate that bacterial immobilisation on biosolids-derived biochar is a promising technique for the remediation of diesel-contaminated soil. Future studies should focus on optimising the immobilisation process for enhanced hydrocarbon removal.

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“…Notably, while almost no information is presently available on the impact of magnetite on anaerobic petroleum hydrocarbon biodegradation in soils [ 6 ], the stimulatory effect of biochar on TPH biodegradation is in line with earlier literature reports. In fact, previous studies suggested that adding biochar to soils contaminated with hydrocarbons can enhance both the extent and rate of TPH biodegradation [ 41 , 42 , 43 , 44 ]. In terms of removal rates, there were no apparent differences among treatments that were supplemented with magnetite and biochar, with values of about 0.45 mg/kg d −1 , in either case.…”

Section: Resultsmentioning

confidence: 99%

Enhancing the Anaerobic Biodegradation of Petroleum Hydrocarbons in Soils with Electrically Conductive Materials

et al. 2023

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Anaerobic bioremediation is a relevant process in the management of sites contaminated by petroleum hydrocarbons. Recently, interspecies electron transfer processes mediated by conductive minerals or particles have been proposed as mechanisms through which microbial species within a community share reducing equivalents to drive the syntrophic degradation of organic substrates, including hydrocarbons. Here, a microcosm study was set up to investigate the effect of different electrically conductive materials (ECMs) in enhancing the anaerobic biodegradation of hydrocarbons in historically contaminated soil. The results of a comprehensive suite of chemical and microbiological analyses evidenced that supplementing the soil with (5% w/w) magnetite nanoparticles or biochar particles is an effective strategy to accelerate the removal of selected hydrocarbons. In particular, in microcosms supplemented with ECMs, the removal of total petroleum hydrocarbons was enhanced by up to 50% relative to unamended controls. However, chemical analyses suggested that only a partial bioconversion of contaminants occurred and that longer treatment times would have probably been required to drive the biodegradation process to completion. On the other hand, biomolecular analyses confirmed the presence of several microorganisms and functional genes likely involved in hydrocarbon degradation. Furthermore, the selective enrichment of known electroactive bacteria (i.e., Geobacter and Geothrix) in microcosms amended with ECMs, clearly pointed to a possible role of DIET (Diet Interspecies Electron Transfer) processes in the observed removal of contaminants.

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Kinetic Monitoring of Bioremediators for Biodegradation of Gasoil-Polluted Soil

Cited by 14 publications

References 65 publications

Bioremediation of total petroleum hydrocarbons in oil sludge-polluted soil using active carbon remediator

Bioremediation of total petroleum hydrocarbons in oil sludge-polluted soil using active carbon remediator

Effect of the Application of Ochrobactrum sp.-Immobilised Biochar on the Remediation of Diesel-Contaminated Soil

Enhancing the Anaerobic Biodegradation of Petroleum Hydrocarbons in Soils with Electrically Conductive Materials

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