Efficacy of free and encapsulated Bacillus lichenformis strain SL10 on degradation of phenol: A comparative study of degradation kinetics

Felshia, S Chris; Karthick, N. Aswin; Thilagam, R.; Chandralekha, A.; Raghavarao, K.S.M.S.; Gnanamani, A.

doi:10.1016/j.jenvman.2017.04.005

Cited by 44 publications

(15 citation statements)

References 46 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Apart from the fact that the bacilli strains grew in minimal salt medium with phenol as a sole carbon and energy source up to a concentration of 700 mg.L -1 , the authors investigated phenol degradation of free and immobilized cells (in alginate), with a better performance of the strain in this last state after 96 h of incubation. Chris Felshia et al (2017) verified the efficiency of encapsulation for a Bacillus licheniformis strain SL10 isolated from sludges samples of effluent treatment station in India. It was found out that encapsulated strains were able to degrade 2,000 ppm of phenol only after 72 h of incubation in comparison with the free cells took 96 h. It is remarkable that optimization of culture conditions is a common experimental step and one of this study's main future perspectives relies on the evaluation of some growth conditions, as time of incubation, temperature, pH along with the effect of medium salinity on the removal of phenol by these strains considering their autochthonous origin.…”

Section: Bacterial Isolatementioning

confidence: 80%

Isolation and characterization of phenol degrading Bacillus species from a Southeast Brazilian mangrove sediment

Rotta¹,

Oliveira²,

Soares³

et al. 2018

Afr. J. Microbiol. Res.

View full text Add to dashboard Cite

Phenolic compounds are common pollutants in industrial effluents and pose a significant risk to the environment. The microbial capacity to degrade these molecules makes the prospection of bacteria with this ability very strategic for bioremediation processes in contaminated areas. This study was carried out to isolate bacteria with phenol degrading capacity from Brazilian mangrove soil. Microorganisms were evaluated for tolerance and the ability to use this substance as a single source of carbon. Two bacterial isolates were obtained: MF-1 and MF-2. The microorganisms were identified, respectively, as Bacillus cereus and Bacillus circulans by sequencing the 16S rRNA gene. The isolates exhibited tolerance to phenol at concentrations up to 600 mg.L-1 when grown in Bushnell-Haas Agar (BHA) and 1,500 mg.L-1 in nutrient agar (NA). As for the use of phenol as a single carbon source, the microorganisms were grown in concentrations of 100, 200 and 300 mg.L-1 of the compound. The isolate MF-1 presented a percentage consumption of 22.43, 11.52 and 3.33%, respectively, for each tested concentration. Although there was a decrease in phenol consumption in response to the increased concentration of this substance, bacterial growth was not affected. The best results were obtained for the isolate MF-2, in which consumption of phenol was, respectively, 21.54, 20.54 and 28.85% for these concentrations. Likewise, the increase in phenol concentration caused no reduction in the growth of this isolate.

show abstract

Section: Bacterial Isolatementioning

confidence: 80%

Isolation and characterization of phenol degrading Bacillus species from a Southeast Brazilian mangrove sediment

Rotta¹,

Oliveira²,

Soares³

et al. 2018

Afr. J. Microbiol. Res.

View full text Add to dashboard Cite

show abstract

“…The hydroxyl radicals are produced when electron migrants from the surface of anode to H 2 O. The hydroxyl radical is substituted with phenol to form intermediates, and the intermediates are gradually oxidized by ·OH and finally converted into CO 2 and H 2 O. , At the cathode, the metal ions are converted from an ionic state to substance by the electric current (strong electric current) and metal ions are transferred from the aqueous phase to the solid phase and finally deposited on the surface of the electrode.…”

Section: Resultsmentioning

confidence: 99%

Simultaneous Phenol Detoxification and Dilute Metal Recovery in Cyclone Electrochemical Reactor

Sun

et al. 2019

Ind. Eng. Chem. Res.

View full text Add to dashboard Cite

The efficient remediation of environmental pollutants is of great importance for sustainable development, ecological balance, and human health. A novel simultaneous electrochemical phenol detoxification and heavy metal recovery from multicomponent acidic media is successfully developed in this study. Because of the enhanced mass transfer, 50 ppm refractory phenol is efficiently degraded at the anode, whereas the dilute copper is also completely electrodeposited at the cathode with 90.3% current efficiency. It has been demonstrated that the simultaneous utilization of anode and cathode can alleviate the side-reactions and facilitate the target reactions. And there is also good performance toward the industrial phenol-containing heavy metal wastewater containing copper, zinc, lead, and cadmium ions, offering a sustainable method for efficient resource recycling and wastewater purification.

show abstract

“…25,26 The extracts of the metabolized products were primarily analyzed using UV-visible spectroscopy (Shimadzu 2450) followed by FTIR spectroscopy (Fourier transform infrared spectroscopy-Jasco 4700) and HPLC analysis. 27 For highperformance liquid chromatography (HPLC) analysis, the samples were ltered with 0.22 mm pore-sized PVDF syringe lters (Merck Millipore) and analyzed using a C18 reverse phase column (Waters, India, Spherisorb (100 Â 4.6 mm) column), with 5 mm particles as the stationary phase, connected to a photodiode detector and fraction collector. The mobile phase used herein was 70% (v/v) methanol with 0.1% (w/v) phosphoric acid in an isocratic mode at the ow rate of 0.8 mL min À1 .…”

Section: Extraction and Analysis Of The Metabolized Productsmentioning

confidence: 99%

Exploring the styrene metabolism by aerobic bacterial isolates for the effective management of leachates in an aqueous system

et al. 2020

View full text Add to dashboard Cite

show abstract

Efficacy of free and encapsulated Bacillus lichenformis strain SL10 on degradation of phenol: A comparative study of degradation kinetics

Cited by 44 publications

References 46 publications

Isolation and characterization of phenol degrading Bacillus species from a Southeast Brazilian mangrove sediment

Isolation and characterization of phenol degrading Bacillus species from a Southeast Brazilian mangrove sediment

Simultaneous Phenol Detoxification and Dilute Metal Recovery in Cyclone Electrochemical Reactor

Exploring the styrene metabolism by aerobic bacterial isolates for the effective management of leachates in an aqueous system

Contact Info

Product

Resources

About