Technologies for the removal of phenol from fluid streams: A short review of recent developments

Busca, Guido; Berardinelli, Silvia; Resini, Carlo; Arrighi, Laura

doi:10.1016/j.jhazmat.2008.03.045

Cited by 1,135 publications

(631 citation statements)

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“…Therefore, disposing safely these compounds is becoming an important area of research with the increasing concern about the environment. Various abatement techniques including biological, thermal, and chemical treatments have been developed in the last few years for the detoxification of organic pollutants [2,3]. Among these techniques, catalytic wet peroxide oxidation (CWPO) appears to be a promising field of study, which has been reported to be effective for the near ambient degradation of soluble organic pollutants, because it can provide a nearly complete degradation [4][5][6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

“…Benitez et al [17] showed that the degradation rate sequence of different CPs was 4-CP > 2,4-dichlorophenol (2,4-DCP) > 2,4,6-trichlorophenol (2,4,6-TCP) > 2,3,4,6-tetrachlorophenol (2,3,4, at constant values of initial CP, hydrogen peroxide and ferrous concentration, pH, and temperature. This means that the position and content of Cl substituent on the aromatic ring strongly affected the peroxide oxidation of CPs.…”

Section: Introductionmentioning

confidence: 99%

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The activity and selectivity of catalytic peroxide oxidation of chlorophenols over Cu–Al hydrotalcite/clay composite

Zhou¹,

Gu²,

Qian³

et al. 2011

Journal of Colloid and Interface Science

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The activity and selectivity of catalytic peroxide oxidation of chlorophenols over Cu–Al hydrotalcite/clay composite

Zhou¹,

Gu²,

Qian³

et al. 2011

Journal of Colloid and Interface Science

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“…phenol has been the targets of a number of investigations Phenol is present in effluents of many industries of wastewater [3][4][5][6]. Bioprocesses are preferred method to such as petroleum refining, resin and plastic, leather and physical and chemical technologies for pollution control textile manufacturing, chemical and petrochemical plants, due to their ability to destroy effectively the pollutants.…”

Section: Introductionmentioning

confidence: 99%

Phenol Biodegradation Kinetics in an Anaerobic Batch Reactor

Firozjaee

Najafpour

Khavarpour

et al. 2011

World Environmental and Water Resources Congress 2011

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Biodegradation of phenol with mixed consortia of bacterial was studied in an anaerobic batch reactor. The culture was acclimatized for a period of two months to grow in mineral salt medium contained phenol as the sole carbon source. Minimum and maximum concentrations of 50 and 1000 mg/l of phenol in the medium were used for the purpose of culture adaptation. The goals of these experiments were to determine the kinetics of biodegradation by determination of biomass growth rates and phenol concentrations with respect to incubation time. Substrate inhibition kinetics and specific growth rate were defined while data were fitted in Haldane model. The specific growth rate, half-saturation and inhibition coefficients for Haldane model were 0.067 hG , 25.32 and 200 mg/l, respectively. The biokinetic parameters were used to predict the biodegradation 1 profile, which was quite consistent with the obtained experimental data. The results were useful for the estimation of relations between growth rate and substrate utilization, which may be used to evaluate mass balance for a wastewater treatment plant contained phenol compound.

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“…11,22,40,41 This feature can be an advantage for chlorophenols degradation, despite the inevitable chlorophenols formation during the electrolysis in the presence of chloride ions since they are also destroyed under longer electrolysis times. 22,24,28,30,42,43 This behavior is evidenced in Figure 8, which presents the chlorophenols concentration drop with both NaCl concentration ( Figure 8A) and time ( Figure 8B). Starting with an initial concentration of 100 mg L -1 phenol in 0.34 mol L -1 NaCl solution, almost all phenol (98.6%) was converted to chlorophenols after 5 min ( Figure 8B).…”

Section: Flow-by Cell Electrolysismentioning

confidence: 77%

Electrooxidation of Phenol on a Ti/RuO2 anode: effect of some electrolysis parameters

Santos¹,

Afonso²,

Dutra³

2011

J. Braz. Chem. Soc.

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Foram investigadas as influências do tempo de eletrólise, da área anódica, da densidade de corrente e do tipo de eletrólito na degradação de fenol e de seus subprodutos de oxidação em anodo de Ti/RuO 2 . Foi observado que na presença de cloreto ocorreu rápida degradação de fenol e de seus subprodutos. Resultados de cromatografia gasosa/espectroscopia de massa (GC/MS) mostraram que a presença de cloreto levou à formação inicial de clorofenóis através do Cl 2 e/ou OCl¯ gerados durante a eletrólise. Entretanto, eles posteriormente atuaram na degradação dos clorofenóis. As concentrações limites estabelecidas pelo Órgão Ambiental Brasileiro (CONAMA) para descartes de fenol e clorofenóis foram obtidas após 360 min de eletrólise a uma densidade de corrente fixa de 10 mA cm -2 . Voltamogramas cíclicos obtidos antes e após 436 h de eletrólise em condições severas de salinidade (2 mol L -1 ) e densidade de corrente (800 mA cm -2 ) mostraram que o eletrodo de Ti/RuO 2 não perdeu suas propriedades eletrocatalíticas.The influences of electrolysis time, anodic area, current density and supporting electrolyte on phenol and its byproducts degradation on a Ti/RuO 2 anode were investigated. It was observed that phenol and its byproducts were rapidly broken down in the presence of chloride ions. Gas chromatography/mass spectrometry (GC/MS) data have shown that the presence of chloride ions lead to chlorophenols formation, due to reactions with Cl 2 and/or OCl¯ generated during electrolysis. However, these intermediate products were also degraded later by the oxidizing agents. The standards established by the CONAMA (Brazilian National Council for the Environment) for phenols and chlorophenols in effluents were achieved after 360 min of electrolysis with a current density of 10 mA cm -2 . Cyclic voltammograms obtained with the anodes before and after 436 h of electrolysis under severe salinity conditions (2 mol L -1 ) and current density (800 mA cm -2 ) showed that Ti/RuO 2 did not lose its electrocatalytic properties. This fact indicates that Ti/RuO 2 can be used for the treatment of effluents containing phenols in a chloride environment. Keywords: electrooxidation, phenols, chlorophenols, supporting electrolyte IntroductionPhenols are persistent organic compounds found in aqueous effluents from domestic activities such as cooking, washing and bathing, as well as petroleum refineries, steel plants, dyeing manufacturing, pharmaceutical and plastic industries. [1][2][3][4] They are refractory to conventional treatment process and, in the presence of chlorine, they may produce chlorophenols, which are carcinogenic and even more refractory to degradation than the phenols themselves. [4][5][6] There are several available processes to treat effluents containing phenols, such as biological treatment, advanced oxidation processes, oxidation in supercritical water and electrochemical oxidation. 6-8 Furthermore, some of those processes, for instance photocatalytic oxidation process, presents high operational costs and operational issues due...

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Technologies for the removal of phenol from fluid streams: A short review of recent developments

Cited by 1,135 publications

References 184 publications

The activity and selectivity of catalytic peroxide oxidation of chlorophenols over Cu–Al hydrotalcite/clay composite

The activity and selectivity of catalytic peroxide oxidation of chlorophenols over Cu–Al hydrotalcite/clay composite

Phenol Biodegradation Kinetics in an Anaerobic Batch Reactor

Electrooxidation of Phenol on a Ti/RuO2 anode: effect of some electrolysis parameters

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