Pre-treatment studies on olive oil mill effluent using physicochemical, Fenton and Fenton-like oxidations processes

Mert, Berna Kırıl; Yonar, Taner; Kılıç, Melike Yalılı; Kestioğlu, Kadir

doi:10.1016/j.jhazmat.2009.09.025

Cited by 153 publications

(44 citation statements)

References 50 publications

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“…The application of a biological process is complicated because salinity shocks cause physical and biochemical changes of the activated sludge and phenolic compounds can inhibit biomass, primarily by bactericidal effects . Other possible treatments are electro‐coagulation, ozonation or Fenton's oxidation but they are expensive and inappropriate for large wastewaters volumes. In addition, these treatments imply phenols destruction and valuable phenolic compounds would not be recovered.…”

Section: Introductionmentioning

confidence: 99%

Adsorption of raw and treated by membranes fermentation brines from table olives processing for phenolic compounds separation and recovery

Ferrer‐Polonio

Mendoza–Roca

Iborra-Clar

et al. 2015

J of Chemical Tech & Biotech

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BACKGROUND: Fermentation brines from table olive processing are effluents characterized by very high salinity and high organic matter concentration, which includes phenols of high value as hydroxytyrosol that is used by pharmaceutical and cosmetic industries.RESULTS AND CONCLUSION: In this work the adsorption with a phenols-selective resin (MN200) of raw and pre-treated by ultrafiltration or by ultrafiltration plus nanofiltration fermentation brine has been studied. The study included the adsorption and desorption process. Besides, the useful life of the resin was evaluated. Results indicated that resin MN200 above 20 g·L -1 yielded phenols separation efficiencies higher than 90%. However, the adsorption of nanofiltrated effluent separated phenols more selectively. Adsorption kinetics fitted properly to a pseudo-second order kinetics and the Langmuir isotherm correctly model the adsorption process. Results of the intra-particle diffusion model show that the pore diffusion is not the only rate limiting step. Desorption was carried out with ethanol. More than 85% of phenolic compounds were recovered. The use of the resin during ten cycles showed that the nanofiltrated effluent increased the useful time of the resin.

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Section: Introductionmentioning

confidence: 99%

Adsorption of raw and treated by membranes fermentation brines from table olives processing for phenolic compounds separation and recovery

Ferrer‐Polonio

Mendoza–Roca

Iborra-Clar

et al. 2015

J of Chemical Tech & Biotech

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“…The authors reported 38%, 23% and 99% removal efficiencies in terms of the parameters COD, TPh and oilgrease, respectively. In another related study conducted by KirilMert et al [13] acid cracking treatment was investigated for OMW. In this study, 46% COD, 37% TPh, 94% oil-grease and 94% SS removals were achieved under their examined reaction conditions.…”

Section: Thermal Acid Cracking Treatmentmentioning

confidence: 99%

“…A variety of advanced oxidation processes [8,9] such as catalytic ozonation, Fenton and Photo-Fenton processes as well as heterogeneous TiO 2 -mediated photocatalysis have been proposed for OMW treatment. Besides, combined treatments such as advanced oxidation processes and biodegradation [10] as well as coagulation coupled with advanced oxidation processes [11][12][13] have been examined. However, most of them appeared to be rather inefficient and economically unattractive since it is quite difficult to efficiently treat high-strength, complex wastewater without pretreatment and in-depth knowledge regarding its properties.…”

Section: Introductionmentioning

confidence: 99%

Evidence of inert fractions in olive mill wastewater by size and structural fractionation before and after thermal acid cracking treatment

Haksevenler

Arslan-Alaton

2015

Separation and Purification Technology

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“…OH+OH − ) in an acid medium produces highly reactive hydroxyl radicals with oxidation‐reduction potential of+2.33 V ,. Fenton reaction has been successfully applied to remove toxic and polluting organic compounds in wastewater . Hydroxyl radical is a stronger oxidant than hydrogen peroxide (+1.36 V), making the reactions between .…”

Section: Introductionmentioning

confidence: 97%

Enhancing Effect of Residual Lignins from D. Sinicus Pretreated with Fenton Chemistry on Enzymatic Digestibility of Cellulose

Ying

Shi

et al. 2018

Energy Tech

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To screen and evaluate possible functional factors in the bamboo lignin moiety that could block non‐productive adsorption of enzyme proteins on lignin, milled wood lignin (MWL) and Fenton oxidized lignin (FOLs) were prepared and incorporated in the enzymatic hydrolysis of Avicel. The addition of MWL decreased the 72 h glucose yields of cellulose from 57.1 % to 45.3 %, while FOLs effectively improved the enzymatic digestibility up to 69.5 %, which was 22 % higher than the system without the use of FOLs. The adsorption affinity and binding strength of cellulase with FOLs were lower than that with MWL. After Fenton pretreatment, hydrophilicity of lignins increased due to formation of C−O− and O−C=O bonds. Furthermore, high surface negative charges on FOLs resulted in strong electrostatic repulsion against the negatively charged cellulases. Finally, analysis of FOLs with 13C and 2D‐HSQC NMR indicated that the cleavage of β‐O‐4 linkages and demethoxylation occurred, and that less condensed structures at the Cβ and Cγ positions were observed. These oxidation reactions of the bamboo lignin lead to the formation of functional factors to alleviate irreversible adsorption of cellulase onto FOLs, and thus were responsible for promoting enzymatic digestibility efficiency.

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Pre-treatment studies on olive oil mill effluent using physicochemical, Fenton and Fenton-like oxidations processes

Cited by 153 publications

References 50 publications

Adsorption of raw and treated by membranes fermentation brines from table olives processing for phenolic compounds separation and recovery

Adsorption of raw and treated by membranes fermentation brines from table olives processing for phenolic compounds separation and recovery

Evidence of inert fractions in olive mill wastewater by size and structural fractionation before and after thermal acid cracking treatment

Enhancing Effect of Residual Lignins from D. Sinicus Pretreated with Fenton Chemistry on Enzymatic Digestibility of Cellulose

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