Ozonisation coupled with biological degradation for treatment of phenolic pollutants: a mechanistically based study

Amat, Ana M.; Arqués, A.; Beneyto, Higinio; García, Ana Paula; Miranda, Miguel A.; Segui, S.

doi:10.1016/s0045-6535(03)00450-8

Cited by 86 publications

(41 citation statements)

References 23 publications

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“…As it has additionally been reported in several other essays, ozonation usually increases the biodegradability of paper mill effluents as well (Amat et al 2005a;Balcioglu et al 2007;Bijan and Mohseni 2004;Bijan and Mohseni 2005;Fontanier et al 2006;Helble et al 1999;Mansilla et al 1997;Nakamura et al 1997;Oeller et al 1997;Roy-Arcand and Archibald 1996;Salokannel et al 2007); mainly because of the successful degradation of certain toxic compounds and the promoted changes in molecular weight fractions from HMW to LMW (Amat et al 2005a;Balcioglu et al 2007;Bauman and Lutz 1974;Fontanier et al 2006;Hostachy et al 1997;Mansilla et al 1997). In fact, Amat et al (2003) also reported that there is an optimum ozone dosage which allows achieving the maximum increase in biodegradability and the highest efficiency of an ozonation process. Further ozonation would have to progress oxidizing LMW carboxylic acids, but they did not show an enhanced biodegradability after this treatment.…”

Section: Ozone Oxidation Processesmentioning

confidence: 78%

“…On the other hand, the carboxylic acids that are formed by opening the aromatic ring have expectedly been reported to be very resistant to oxidation by ozone (Amat et al 2003;Amat et al 2005b;Bailey 1982;Balcioglu et al 2007;Fontanier et al 2005a;Hoigne and Bader 1983;Kreetachat et al 2007), and they are usually responsible for TOC abatement limitation (Hoigne and Bader 1983); although they are generally highly biodegradable.…”

Section: Ozone Oxidation Processesmentioning

confidence: 99%

“…In fact, according to Salokannel et al (2007), purification results are not expected to be influenced by the feeding gas ozone concentration; they rather depend on the ozone dose that is applied to water, whereas the feeding gas ozone concentration and its mass transfer rate to the solution have a straight effect on the reaction time required to reach the desired ozone dose in water. Correspondingly, reaction rate is clearly dependent on ozone availability (Amat et al 2004) and reaction time (Amat et al 2003). Furthermore, in an enlightening work, Kreetachat et al (2007) measured mass transfer to water when applying different ozone feeding rates, reporting that the volumetric mass transfer coefficient increases from 0.22 to 0.55 min -1 when the ozone feeding rate increases from 1 to 4 L·min -1 , so the oxidation rate increases at a higher feeding rate because the driving force transferring ozone to the solution is greater.…”

Section: Ozone Oxidation Processesmentioning

confidence: 99%

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The application of advanced oxidation technologies to the treatment of effluents from the pulp and paper industry: a review

Hermosilla

Merayo

Gascó

et al. 2014

Environ Sci Pollut Res

154

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Paper industry is adopting zero liquid effluent technologies to reduce fresh water use and meet environmental regulations, which implies water circuits closure and the progressive accumulation of pollutants that must be removed before water re-use and final wastewater discharge. The traditional water treatment technologies that are used in paper mills (such as dissolve air flotation or biological treatment) are not able to remove recalcitrant contaminants. Therefore, advanced water treatment technologies, such as advanced oxidation processes (AOPs), are being included in industrial wastewater treatment chains aiming to either improve water biodegradability or its final quality. A deep review of the current state of the art regarding the use of AOPs for the treatment of the organic load of effluents from the paper industry is herein addressed considering mature and emerging treatments for a sustainable water use in this sector. Wastewater composition, which is highly dependent of the raw materials being used in the mills, the selected AOP itself, and its combination with other technologies, will determine the viability of the treatment. In general, all AOPs have been reported to achieve good organics removal efficiencies (COD removal >40%; and about an extra 20% if AOPs are combined with biological stages). Particularly, ozonation has been the most extensively reported and successfully implemented AOP at an industrial scale for effluent treatment or reuse within pulp and paper mills; although Fenton processes (photo-Fenton particularly) have actually addressed better oxidative results (COD removal ≈65-75%) at lab scale, but still need further development at large scale.

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Section: Ozone Oxidation Processesmentioning

confidence: 78%

Section: Ozone Oxidation Processesmentioning

confidence: 99%

Section: Ozone Oxidation Processesmentioning

confidence: 99%

See 1 more Smart Citation

The application of advanced oxidation technologies to the treatment of effluents from the pulp and paper industry: a review

Hermosilla

Merayo

Gascó

et al. 2014

Environ Sci Pollut Res

154

View full text Add to dashboard Cite

show abstract

“…Besides these methods; advanced treatment processes such as ozonation [7]- [8]- [9], photocatalysis [10], electrocoagulation [5]- [11], fenton oxidation [12], ozone and fenton oxidation [13] and wet air oxidation [14] have been tested for olive mill wastewater treatment. However, these processes have a disadvantage of either high operating costs or high sludge quantities which requires additional treatment thereby additional investment and operating cost.…”

Section: Introductionmentioning

confidence: 99%

Electrohydrolysis of Olive Mill Wastewater: Effect of Applied DC Voltage

2017

IJAAEE

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Abstract-The aim of this study is the investigation of electrohydrolysis treatment process for olive mill wastewater in terms of pollutants removal and hydrogen production. For this purpose, Different voltages including 4, 6 and 8 V DC were tested for 3 hours. 8 V DC for 3 hours was found to be as the most effective condition. At this optimum voltage, different time periods were also investigated. At 8 V, significant pollutant removal efficiencies were obtained. 68% turbidity, 70% TSS, 52% COD and 19% sCOD removal efficiencies were achieved. Volume of produced gas was 1500±10 ml and hydrogen percent was determined as 85%. Hydrogen production along with pollutant removal is one of the advantages of electrohydrolysis. Therefore, electrohydrolysis can be proposed as a feasible alternative treatment step for wastewaters which is characterized by high organic matter and also suspended matter.

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“…Cette technique produit des quantités importantes de boues qui causent d'autres problèmes environnementaux. L'oxydation chimique utilisant l'ozone (AMAT et al, 2003;BENITEZ et al, 1997), l'hydroxyde d'hydrogène (FLOURI et al, 1996, ou les procédés d'oxydation avancée (GERNJAK et al, 2004;KESTIOGLU et al, 2005) sont basés sur la production des hydroxydes radicalaires permettant la destruction complète de la matière organique contenue dans les margines. Cependant, cette technique demande une technologie sophistiquée, du personnel qualifié et un coût très élevé.…”

Section: Introductionunclassified

Traitement des margines par électrocoagulation avec des électrodes plates en aluminium

Hanafi

Sadif

Assobhei

et al. 2009

rseau

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Cet article est diffusé et préservé par Érudit. , la réduction des orthophosphates est 94-99 %, la réduction de l'ammonium est 80-85 %,la réduction du zinc -3 . Ces niveaux opérationnels optimaux permettent d'avoir une bonne dégradation des margines.Traitement des margines par électrocoagulation 474 est 70-75 %, la réduction du fer est 71-76 %, la masse perdue des électrodes est 0,6-0,7 kg•m -3 et l'énergie consommée est 12-14 kWh•mMots clés : Margine, caractérisation, électrocoagulation, électrodes en aluminium, décoloration, DCO, polyphénols. ABSTRACTOlive mill wastewater (OMWW) generated by the olive oil extraction process is the main waste product of this industry. These effluents have been characterized, followed by an experimental study of the elimination of organic matter (chemical oxygen demand (COD), phenolic compounds, suspended solids (SS) and colour), mineral matter (phosphate and ammonium nitrogen) and heavy metals (zinc and iron) using an electrocoagulation technique with aluminum electrodes. It was found that an increase in electrolysis time and voltage improved treatment significantly. However, a simultaneous increase in electrode and energy consumption was observed.The results of these analyses showed that the olive mill wastewater (OMWW) effluent, diluted five times, is acidic (pH 4.2), has a very high organic matter concentration , the reduction of orthophosphates was 94-99% and the reduction of ammonium was 80-85%. The reduction of zinc was 70-75%, the reduction of iron was 71-76%, the electrode consumption was 0.6-0.7 kg•m -3 and the amount of energy consumed was [12][13][14] . Under these optimal operational conditions, acceptable degradation of the OMWW was achieved.

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Ozonisation coupled with biological degradation for treatment of phenolic pollutants: a mechanistically based study

Cited by 86 publications

References 23 publications

The application of advanced oxidation technologies to the treatment of effluents from the pulp and paper industry: a review

The application of advanced oxidation technologies to the treatment of effluents from the pulp and paper industry: a review

Electrohydrolysis of Olive Mill Wastewater: Effect of Applied DC Voltage

Traitement des margines par électrocoagulation avec des électrodes plates en aluminium

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