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Biodegradation, EnvironmentalPhenolPhenolsSoil PollutantsChlorophenolsSoil MicrobiologyPetroleumHydrocarbonsWater Pollutants, ChemicalCresolsBacteriaAlkanesPhenolsulfonphthaleinSewagePseudomonasWater MicrobiologyChlorobenzenesFuel OilsTolueneBenzeneBiotransformationPentachlorophenolHydrocarbons, AromaticRhodococcusCreosoteChlorobenzoatesSphingomonasTrichloroethylenetert-Butyl AlcoholWater PollutantsWater Pollution, ChemicalCatecholsBenzene DerivativesScenedesmusRalstoniaSurface-Active AgentsDichloroethylenesAerobiosisPropanePhenanthrenesAnaerobiosisPseudomonas putidaEnvironmental PollutantsDioxygenasesOxygenasesXylenesLigninIndustrial WasteVinyl ChloridePolyporaceaeMethaneLindaneGarbageLaccaseFresh Water2,4-Dichlorophenoxyacetic AcidHydrocarbons, HalogenatedArthrobacterCatechol 1,2-DioxygenaseDodecanolGasolineBasidiomycotaBacteria, AerobicEthylene DibromideNitrilotriacetic AcidPhenolphthaleinsSodium BenzoateBromobenzoatesMicrobial ConsortiaRNA, Ribosomal, 16SOxidation-ReductionDecanoatesGas Chromatography-Mass SpectrometryWaste Disposal, FluidOctanesParabensEthylene DichloridesArylsulfotransferaseNitrophenolsNaphthalenesBiodegradable PlasticsBioreactorsBiotechnologyPolycyclic Hydrocarbons, AromaticPhanerochaeteBetaproteobacteriaTrinitrotolueneMolecular Sequence DataMixed Function OxygenasesAdipatesCulture MediaCatechol 2,3-DioxygenaseFungiRefuse DisposalPleurotusSeawaterPetroleum PollutionAnisolesAbsorbable ImplantsBenzoates
Oxidation of phenolCompoundsSludgeInitial phenol concentrationDegradation of phenolMicrobial biodegradationConcentrationAdsorptionCarbonTolueneMixtureDegradeToxicityAerobicAntibioticConcentrationsAqueousAromaticDanicaHydrocarbonRemoval was obtainedSituAnaerobicVulgarisOxidativeResistantUtilizeHazardousEnhancementExperimentsOxygenNaphthaleneGenesTransformEnvironmentStudyHighConditionsHigherSolutionConditionPotentialTransport
Oxidation of phenol2
  • Catalytic wet air oxidation of phenol, nitrobenzene and aniline over the multi-walled carbon. (sagepub.com)
  • This is based on the oxidation of phenol red (PR), a visual and electroactive LAMP indicator, which oxidation peak potential (Ep) changes with the progress of the LAMP reaction. (bvsalud.org)
Compounds8
  • The toxicity of thirty para-substituted phenols on Tetrahymena pyriformis was modelled using an original methodology that uses the complex structural information of the compounds. (ejbiotechnology.info)
  • Chlorinated phenols represent one of the most common groups of toxic industrial compounds. (nusl.cz)
  • The evidence in the literature suggests that PCDD/F compounds are subject to biodegradation in the environment as part of the natural chlorine cycle. (igem.org)
  • Biodegradation of chlorinated phenolic compounds. (edu.vn)
  • The enhancement of the biodegradation of doxycycline was 50, 90, 68 and 83% greater respectively with the addition of glucose, copper, phenol and with a mixture of the compounds after 14 days of treatment at 25°C. Compared with the biotic control (activated sludge alone), a 30% increase for the test with the addition of phenol was observed. (sciencegate.app)
  • In order to analyse the annotation and the quality of our genome annotation, we looked at four main specific annotation types such as antibiotic resitance, restriction enzyme, metals (such as cadmium, copper and mercury), and other toxic compounds (such as phenol, nitrate, nitrite). (igem.org)
  • Dr. Marco-Urrea will continue to investigate microbial biodegradation of halogenated compounds. (helmholtz.de)
  • Overall, the results suggest that HRP immobilized on Ca alginate-starch hybrid supports shows promise as a biocatalyst for industrial and biotechnological applications, particularly for the biodegradation of recalcitrant compounds such as phenol red dye. (bvsalud.org)
Sludge7
  • The objectives of this study were to: (i) evaluate the growth of low-strength phenol-acclimated activated sludge, (ii) investigate the degradation pathways and (iii) model the growth and biodegradation kinetics, all under the condition of increasingly higher phenol concentrations (step-up shock loading). (scielo.org.za)
  • With the use of activated sludge acclimated to phenol concentration of 140 mg.ℓ -1 (low-strength phenol-acclimated activated sludge), complete degradation of phenol with a COD removal efficiency of more than 95% was achieved up to 1 050 mg.ℓ -1 of initial phenol concentration. (scielo.org.za)
  • Thus, the activated sludge acclimated to only 140 mg.ℓ -1 of phenol could successfully treat up to 1 050 mg.ℓ -1 of phenol without experiencing complete inhibition during the degradation process. (scielo.org.za)
  • The main purpose of this study was to enhance the biodegradation of doxycycline through activated sludge combined with addition of glucose as a carbon co-substrate to improve the growth of the microbial population present in the activated sludge, phenol as a laccase mediator, copper as a cofactor and inductor for laccase production. (sciencegate.app)
  • Activated sludge acclimatization was assessed for pinewood biochar to study phenol biodegradation from synthetic effluents. (ua.pt)
  • Sludge acclimatization greatly facilitated the phenol biodegradation rate, especially in the presence of biochar. (ua.pt)
  • In a biodegradation test in activated sludge according to OECD 314B a mineralisation of 82% was observed within 28 days. (janusinfo.se)
Initial phenol concentration4
  • When the initial phenol concentration was above 630 mg.ℓ -1 , the degradation results were indicative of both meta- and ortho-cleavage pathways. (scielo.org.za)
  • This was substantiated by the observation that the rate constant of phenol removal decreased by only 33% even though the initial phenol concentration was increased by 15 times from 70 to 1 050 mg.ℓ -1 . (scielo.org.za)
  • The system studied showed a high degree of stability and resistance to the load shock loading when the initial phenol concentration was increased from 250 to 500 mg/L. (ua.pt)
  • The different factors affecting phenol's removal were studied including: contact time, solution pH and initial phenol concentration. (gjesm.net)
Degradation of phenol5
  • A simple route for photocatalytic degradation of phenol in aqueous zinc oxide suspension us-ing solar energy. (urfu.ru)
  • Degradation of phenol by photocatalysis using TiO2/montmorillonite composites under UV light. (urfu.ru)
  • Photocatalytic degradation of phenol over MWCNTs-TiO2 composite catalysts with different diame-ters. (urfu.ru)
  • Velasco LF, Parra JB, Ania CO. Role of activated carbon fea-tures on the photocatalytic degradation of phenol. (urfu.ru)
  • Enhanced solar photocatalytic degradation of phenol with coupled graphene-based titani-um dioxide and zinc oxide. (urfu.ru)
Microbial biodegradation1
  • The obtained results suggest that microbial biodegradation of pollutants can be used to clean up contaminated environments. (omicsonline.org)
Concentration2
  • The concentration of phenol in the column effluent was found to decrease by nearly 90% in the presence of HRP and H2O2 in the continuous flow system. (k-state.edu)
  • The values of the Haldane kinetic parameters indicated a low degree of inhibition exerted by the presence of increasing phenol concentration. (scielo.org.za)
Adsorption2
  • The phenol adsorption capacity of the prepared carbons was evaluated. (gjesm.net)
  • The adsorption of phenol on African beech sawdust activated carbons was found to follow the Lagergren first order kinetics and the intraparticle diffusion mechanism gave a good fit to the experimental data. (gjesm.net)
Carbon2
  • phenol carbon is thus unequivocally assimilated by the alga, Phenol-grown cultures of O. danica converted phenols to the corresponding catechols, which were further metabolized by the meta-cleavage pathway, This surprising result was rigorously confirmed by taking the working stock culture through a variety of procedures to check that it was axenic and repeating the experiments with algal extracts. (lancs.ac.uk)
  • In the paper, multi-walled carbon nanotubes (MWCNTs), functionalized by O3, were used as catalysts in the absence of any metals to investigate the catalytic activity in the catalytic wet air oxidation (CWAO) of phenol, nitrobenzene (NB) and aniline at the mild operating conditions (reaction temperature of 155°C and total pressure of 2.5 MPa) in a batch reactor. (sagepub.com)
Toluene1
Mixture2
  • The high SDIMO gene diversity might be related to the complexity of the hydrocarbon pollution (a mixture of phenol, methane, tetrahydrofuran, propene and propane) and demonstrates the existence of in situ hydrocarbon biodegradation potential. (int-res.com)
  • A defined mixed culture adapted to phenol converted more than 90% of a mixture of phenol, hexadecane and pyrene and a very high maximal growth rate of 0.19 h −1 was determined. (iwaponline.com)
Degrade2
  • Arthrobacter citreus has the ability to degrade phenol. (wikipedia.org)
  • When released to the environment, parathion is degraded by photolysis (degradation by reacting with light), hydrolysis (reaction with water), and biodegradation (microorganisms in soil and water that degrade parathion). (cdc.gov)
Toxicity4
  • The partial charge distribution by bonds (molecular topology) and space (molecular geometry) interaction proved to be related with the toxicity of para-substituted phenols on Tetrahymena pyriformis . (ejbiotechnology.info)
  • The toxicity of para-substituted phenols on Tetrahymena Pyriformis (a non-pathogenic unicellular protozoan) was studied by many researchers. (ejbiotechnology.info)
  • The main objective of the present study was to characterize the toxicity caused by para-substituted phenols on Tetrahymena pyriformis by using the molecular descriptors family on the structure-activity relationships approach. (ejbiotechnology.info)
  • Phenols that are chlorinated have significantly greater toxicity and are resistant to aerobic biodegradation. (k-state.edu)
Aerobic2
  • 1,3-DNB can undergo biodegradation under aerobic and anaerobic conditions in water and soil. (cdc.gov)
  • however, no data were located regarding anaerobic biodegradation in water or anaerobic and aerobic biodegradation in soil. (cdc.gov)
Antibiotic1
  • Analysis of phenol biodegradation in antibiotic and heavy metal resistant Acinetobacter lwoffii NL1. (urfu.ru)
Concentrations2
Aqueous1
  • U-C-14]phenol was completely mineralized, with 65% of the C-14 label appearing as (CO2)-C-14, approximately 15% remaining in the aqueous medium, and the rest accounted for in the biomass. (lancs.ac.uk)
Aromatic1
Danica1
Hydrocarbon3
  • However, little is known about the influence of such pollution on the α- and β‑diversity of the bacterial communities or the in situ hydrocarbon biodegradation potential present in the surface sediments. (int-res.com)
  • It is shown that efficient phenol biodegradation is essential for high temperature hydrocarbon degradation because some microorganisms tend to transform phenols into polyphenols which are very inhibitory for microbial growth. (iwaponline.com)
  • In a separate experiment the influence of the hydrocarbon droplet size on the biodegradation is investigated at 70°C using a newly isolated Thermus sp. (iwaponline.com)
Removal was obtained3
  • In the CWAO of phenol over the functionalized MWCNTs, total phenol removal was obtained after 90 min run, and the reaction apparent activation energy was ca. 40 kJ·mol−1. (sagepub.com)
  • The NB was not removed in the CWAO of single NB, while ca. 97% NB removal was obtained and 40% NB removal was attributed to the catalytic activity after 180 min run in the presence of phenol. (sagepub.com)
  • The optimum phenol removal was obtained after a contact time of 300 min. (gjesm.net)
Situ1
  • Biodegradation of ethylene dibromide (1,2-dibromoethane [EDB]) in microcosms simulating in situ and biostimulated conditions. (umass.edu)
Anaerobic1
  • There was no phenol turn over under anaerobic condition (O 2 - free nitrogen) until air was admitted when phenol removal commenced [ 4 ]. (omicsonline.org)
Vulgaris1
  • The effect of phenol on the growth of Chlorella vulgaris and Chlorella VT-1. (edu.vn)
Oxidative3
  • The study also evaluated the ability of HRP to mediate the removal of phenol from solution by catalyzing its oxidative polymerization in simulated aquifer conditions. (k-state.edu)
  • HRP mediated oxidative polymerization of phenols resulted in the production of soluble and insoluble oligomeric products. (k-state.edu)
  • Effects of phenol-depleted and phenol-rich diets on blood markers of oxidative stress, and urinary excretion of quercetin and kaempferol in healthy volunteers. (urfu.ru)
Resistant1
  • nThey are resistant to biodegradation in the environment and persist for a long time. (nusl.cz)
Utilize1
Hazardous1
  • Removal of hazardous phenols by microalgae under photoautotrophic conditions. (edu.vn)
Enhancement1
  • Enhancement of PCBs biodegradation by sodium ligninsulfonate. (edu.vn)
Experiments1
  • Photoanodes based on TiO 2 and TiO 2 -AC were fabricated and applied to PEC experiments for phenol degradation. (urfu.ru)
Oxygen1
  • A mechanism of phenol PEC degradation on the TiO 2 -AC photoanode was proposed, which includes interaction between protonated phenol and active sites bearing oxygen on the photoanode surface. (urfu.ru)
Naphthalene1
  • Cyanobacteria (blue green algae) and eukaryotic micro algae were capable of biotransforming naphthalene to more water soluble phenol, 1-naphthol [ 1 ]. (omicsonline.org)
Genes1
  • In total, 72.61% of the AlkB sequences were related to Gammaproteobacteria, including Alcanivorax and Marinobacter , while the SDIMO genes were similar to Phenol-2 , Mmo , ThmA , PmoC and PrmA genes, with 72% of the sequences found being novel. (int-res.com)
Transform1
  • Strain CBDB1 is a remarkable organism that can transform highly chlorinated dioxins, biphenyls, phenols and benzenes. (helmholtz.de)
Environment1
  • This document outlines the risk management options under consideration for phenol, methylstyrenated (MSP) (CAS RN 68512-30-1), which has been proposed to be harmful to the environment. (canada.ca)
Study2
  • A sample of thirty para-substituted phenols (HO-C 6 H- 4 -R) was included into the study. (ejbiotechnology.info)
  • In this study, horseradish peroxidase (HRP) was immobilized for the first time on Ca alginate-starch hybrid beads and employed for the biodegradation of phenol red dye. (bvsalud.org)
High1
  • In comparison with the TiO 2 photoanode, the TiO 2 -AC one exhibited superior photocatalytic activity, which was indicated by a high current density and effective phenol removal. (urfu.ru)
Conditions1
  • Therefore, we attempted to find new experimental conditions and related mechanisms to improve cellular estrogen responsiveness based on the standard culture medium supplemented with normal FBS and phenol red. (bvsalud.org)
Higher1
  • Compared to free HRP, the immobilized enzyme exhibited higher potential for phenol red dye degradation, as evidenced by the removal of 55.87% of initial phenol red after 90 min, which was 11.5 times greater than free HRP. (bvsalud.org)
Solution1
Condition1
  • The effects of estrogen have typically been determined under a special culture condition, i.e., phenol red-free media supplemented with dextran-coated charcoal-stripped fetal bovine serum (CS-FBS). (bvsalud.org)
Potential1
  • In sequential batch reactions, the immobilized HRP demonstrated good potential efficiency for the biodegradation of phenol red dye. (bvsalud.org)
Transport1
  • Modification of porous media caused by the deposition of phenol polymerization products was studied and the impact of media modification on subsequent transport of phenolic contaminants was evaluated using 2,4-dichlorophenol (2,4-DCP) as a probe solute. (k-state.edu)