Laboratory studies of the remediation of polycyclic aromatic hydrocarbon contaminated soil by in-vessel composting

Antízar-Ladislao, Blanca; Lopez-Real, Joseph; Beck, Angus J.

doi:10.1016/j.wasman.2005.01.009

Cited by 77 publications

(52 citation statements)

References 24 publications

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“…5), and the slight variations of concentrations observed were attributed to experimental variation of moisture content during the composting treatment that would potentially affect PAH concentrations (Antizar-Ladislao et al 2005). The soil microflora was not able to degrade PAHs as observed by Kästner et al (1999).…”

Section: Degradation Of Pahsmentioning

confidence: 75%

“…soil/dry wt. wastes) (Antizar-Ladislao et al 2005). The treatment SWB was similar to SW with the addition of two PAH-degrading microorganisms (Bacillus sp.…”

Section: Experimental Designmentioning

confidence: 99%

“…soil/dry wt. wastes) as used in Antizar-Ladislao et al (2005). The TC content in the initial mixture was 24.5±0.7%.…”

Section: Initial Soil/waste Mixturesmentioning

confidence: 99%

“…Bioreactors were placed in temperature-controlled water-bathes to simulate representative thermal stages during in-vessel composting processes. The variation temperature profile for the time periods days 0-14 at 38°C, days 15-35 at 55°C, days 36-42 at 70°C, and days 43-60 at 38°C was chosen according to Antizar-Ladislao et al (2005). These conditions simulated the operation of a commercial in-vessel operating system by including the minimum thermophilic temperature of 70°C required for pathogen control (Antizar et al 2007).…”

Section: Temperature and Moisturementioning

confidence: 99%

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Remediation of polycyclic aromatic hydrocarbon (PAH) contaminated soil through composting with fresh organic wastes

Zhang

Zhu

Houot

et al. 2011

Environ Sci Pollut Res

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Introduction Composting may enhance bioremediation of PAH-contaminated soils by providing organic substrates that stimulate the growth of potential microbial degraders. However, the influence of added organic matter (OM) together with the microbial activities on the dissipation of PAHs has not yet been fully assessed. Materials and methods An in-vessel composting-bioremediation experiment of a contaminated soil amended with fresh wastes was carried out. Four different experimental conditions were tested in triplicate during 60 days using laboratory-scale reactors: treatment S (100% soil), W (100% wastes), SW (soil/ waste mixture), and SWB (soil/waste mixture with inoculation of degrading microorganisms). Results and discussion A dry mass loss of 35±5% was observed in treatments with organic wastes during composting in all the treatments except treatment S. The dissipation of the 16 USEPA-listed PAHs was largely enhanced from no significant change to 50.5±14.8% (for SW)/63.7±10.0% (for SWB). More obvious dissipation was observed when fresh wastes were added at the beginning of composting to the contaminated soil, without significant difference between the inoculated and non-inoculated treatments. Phospholipid fatty acid (PLFA) profiling showed that fungi and G-bacteria dominated at the beginning of experiment and were probably involved in PAH dissipation. Subsequently, greater relative abundances of G+bacteria were observed as PAH dissipation slowed down. Conclusions The results suggest that improving the composting process with optimal organic compositions may be a feasible remediation strategy in PAH-contaminated soils through stimulation of active microbial populations.

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Section: Degradation Of Pahsmentioning

confidence: 75%

“…soil/dry wt. wastes) (Antizar-Ladislao et al 2005). The treatment SWB was similar to SW with the addition of two PAH-degrading microorganisms (Bacillus sp.…”

Section: Experimental Designmentioning

confidence: 99%

“…soil/dry wt. wastes) as used in Antizar-Ladislao et al (2005). The TC content in the initial mixture was 24.5±0.7%.…”

Section: Initial Soil/waste Mixturesmentioning

confidence: 99%

Section: Temperature and Moisturementioning

confidence: 99%

See 2 more Smart Citations

Remediation of polycyclic aromatic hydrocarbon (PAH) contaminated soil through composting with fresh organic wastes

Zhang

Zhu

Houot

et al. 2011

Environ Sci Pollut Res

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“…(Hwang et al 2001) found that the first-order kinetic rate constant of diesel oil was 0.099/ day. Previous studies showed that the first-order kinetic constant at 38°C was 0.013/day (Antizar-Ladislao et al 2005).…”

Section: Biodegradation Kineticsmentioning

confidence: 96%

Application of indigenous microbial consortia in bioremediation of oil-contaminated soils

Shankar¹,

Kansrajh²,

Dinesh³

et al. 2013

Int. J. Environ. Sci. Technol.

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Bioremediation of oil spillage in soils using consortia of microbes beckons much exploration. The present study involves bioremediation of oil-contaminated soils from north Chennai, India, using indigenous microbial consortia. Totally, 32 positive oil degrading isolates were obtained from 3 different locations, i.e., petrol filling stations, automobile workshops and oil refineries. Substrate utilization patterns of individual isolates and the consortial sets were observed. Mixture of three common hydrocarbons (petrol, diesel and engine oil) was used for studies. The substrate oil utilized by consortia was taken for thin-layer and column chromatography which perfectly resulted in varied fractions of oil compared to the unused oil as control. The best consortia were used directly for bioremediation experiment. Three different oil-contaminated soils were used and bioremediation patterns were observed. The rate of bioremediation differed within soils, nevertheless all soils were almost 100 % reclaimed within 30 days. Bioremediation kinetics showed that the process corresponds to first-order kinetics and kinetic constants for the different soils ranged from 0.051 to 0.077/day. Assessment of detoxification of acute phytotoxicity owing to the pollutant oil was done, and results observed were significant. An increase of 25, 300 and 212 % in germination index, average growth index and sustenance index, respectively, of Trigonella foenumgraecum Linn. in treated soils was observed, compared to untreated soils. Thus, this study confirmed that microbes in 'Consortial Union' serve as better treating agents in bioremediation of oil-contaminated soils than individual microorganisms.

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PAHBioremediation by Microbial Communities and Enzymatic Activities

Andreoni

Gianfreda

2010

Handbook of Green Chemistry

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Polycyclic aromatic hydrocarbons (PAHs) are hydrophobic, persistent, ubiquitous pollutants of the environment. The capability for PAH degradation of soil indigenous microorganisms has been investigated in numerous studies. PAH‐degrading bacteria have been found in pristine and contaminated temperate and tropical zone ecosystems, in Arctic and Antarctic soils, in sediments and in the rhizosphere of numerous different plants. A broad range of oxygenases is distributed among the microorganisms growing on PAHs and several groups of genes for the initial PAH oxygenation are now known. Gene sequences encoding for enzymes specific for the initial and ring oxygenase have been used to construct specific probes. The broad biodegradative capabilities evolved by microorganisms towards these compounds and the available tools for monitoring their presence in the environment account for bioremediation‐based strategies with the potential to restore PAH‐contaminated soils. Compost and composting matrices have enormous potential for assisting the bioremediation of PAH‐polluted soils and both techniques have been successfully applied to ameliorate soil contaminated with PAHs. One way to achieve truly in situ bioremediation is by utilizing plants to perform rhizosphere bioremediation. Phytoremediation is of particular interest as a secondary polishing approach for PAH‐contaminated soil previously treated by land farming, augmentation of the soil with selected PAH‐degrading bacteria and growth of plants with plant growth‐promoting rhizobacteria. A different approach, alternative to whole microbial and plant cells, is the use of extracellular enzymes, such as oxidoreductases of fungal origin with known abilities to transform or even to degrade PAHs effectively.

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Laboratory studies of the remediation of polycyclic aromatic hydrocarbon contaminated soil by in-vessel composting

Cited by 77 publications

References 24 publications

Remediation of polycyclic aromatic hydrocarbon (PAH) contaminated soil through composting with fresh organic wastes

Remediation of polycyclic aromatic hydrocarbon (PAH) contaminated soil through composting with fresh organic wastes

Application of indigenous microbial consortia in bioremediation of oil-contaminated soils

PAHBioremediation by Microbial Communities and Enzymatic Activities

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