The aim of this study was to evaluate whether the interaction of Vicia sativa with a bacterial strain capable of using phenol as sole carbon and energy sources can moderate adverse effects of this pollutant in plant tissues. A bacterial strain identified as Bacillus sp., isolated from a heavily polluted environment, was inoculated at different stages of growth. In root elongation assay, inocula...

Abstract Microbial degradation is an important process for removing many organic chemicals from natural waters. The estimation of biodegradability which reach the aquatic environment necessary in assessing hazard associated with their use. Phenol has industrial applications and it finds its way into wastewater streams. It toxic to several biochemical reactions. However, biological transformatio...

Bioaugmentation potential and phenol substrate affinity in a multi-carbon-source condition for three Acinetobacter strains (Acinetobacter towneri CFII-87, johnsonii CFII-99A sp. CFII-98) were demonstrated. First, the biodegradation ability of was analyzed batch experiments with as sole carbon source. All degraded at 100 500 mg·L−1 initial concentrations; maximum specific growth rates 0.59 0.30 ...

The biodegradation of phenol, p-cresol, and phenol plus p-cresol mixtures was evaluated using Pseudomonas putida ATCC 17484 in aerobic batch reactors. Shake-flask experiments were performed separately growth medium with initial nominal concentrations (50–600 mg L−1) as well L−1). complete degradation achieved within 48 h 48–56 h, respectively, for all p-cresol. maximum cell rate (μmax,P = 0.45 ...

Anaerobic biodegradation of phenanthrene (PHE) was investigated using an enrichment culture consists predominantly of sulfate-reducing bacteria (87+/-6%). Aqueous biodegradation experiments were designed using the rotatable central composite design with five levels. The designed concentrations were 2-50 mg L(-1) for PHE, 480-3360 mg L(-1) for sulfate, and 5-50 mg L(-1) for initial biomass. Expe...

The ability of subsurface microbial communities to adapt to the biodegradation of xenobiotic compounds was examined in aquifer solids samples from a pristine aquifer. An increase in the rates of mineralization of radiolabeled substrates with exposure was used as an indication of adaptation. For some compounds, such as chlorobenzene and 1,2,4-trichlorobenzene, slight mineralization was observed ...

In the present study, the removal of phenol from synthetic wastewater was evaluated in a fixed bed reactor with up flow sludge blanket filtration (FUSBF) in comparison with a typical USBF system. At hydraulic retention time (HRT) of 24 hours and solid retention time (SRT) of 20 day, the effect of initial concentration of phenol (260-1020 mg/L) on phenol and chemical oxygen demand (COD) removal ...

The effect of coaggregation of the two bacterial strains Propioniferax-like PG-02 and Comamonassp. PG-08 on phenol degradation and aerobic granulation was investigated. While PG-02 was characterized as a phenol-degrader with a low half-saturation kinetics constant, PG-08 possessed strong aggregation ability with poor phenol degradation ability. The two strains coaggregated through involvement o...