Effects of ozonation process on lignin-derived compounds in pulp and paper mill effluents

Kreetachat, Torpong; Damrongsri, M.; Punsuwon, V.; Vaithanomsat, Pilanee; Chiemchaisri, Chart; Chomsurin, C.

doi:10.1016/j.jhazmat.2006.08.011

Cited by 68 publications

(36 citation statements)

References 28 publications

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“…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: 95%

“…Due to the short half-life of ozone, continuous ozonation is required to keep the reaction going on. This is one of its major drawbacks, considering the high cost of generating ozone (Catalkaya and Kargi 2007;Kreetachat et al 2007). Furthermore, the stability of ozone is also affected by the presence of salts (Barndõk et al 2012), pH (alkaline solutions accelerate its decomposition generating hydroxyl radicals), and temperature Catalkaya and Kargi 2007); and process efficiency is highly dependent on an efficient gas liquid mass transfer, which is quite difficult to achieve due to the low solubility of ozone in aqueous solutions (Kreetachat et al 2007).…”

Section: Ozone Oxidation Processesmentioning

confidence: 99%

“…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%

“…Color has particularly been reported to be removed very easily because its main responsible is the presence of lignin compounds, which double and triple bonds are easily oxidized by ozone (Bijan and Mohseni 2004;El-Din and Smith 2002;Joss et al 2007;Kreetachat et al 2007;Prat et al 1989;Salokannel et al 2007). In addition, and as it has just been pointed out, dechlorination of organochloride compounds is very effective; 60 minutes of reaction time have been reported enough to finish the breakdown of all organochlorides present in effluents from bleaching stages (chlorination, extraction and hypochlorite) of a pulp mill (Balcioglu et al 2007).…”

Section: Ozone Oxidation Processesmentioning

confidence: 99%

“…More recently, Merayo et al (2013) have reported non-significant differences between the ozone treatment of recycled paper mill effluents performed at pH = 7 and 12; and an even higher ozonation efficiency at pH = 7 for kraft pulp mill effluents. Considering all together, working at the typical pH values of neutral-basic pulp and paper mill effluents (pH = 7-9) addressed the great advantage of avoiding pH control mechanisms (Kreetachat et al 2007;Oeller et al 1997;Salokannel et al 2007). Nevertheless, slight pH variations may occur during the oxidation reaction due to the formation of small acid by-products (Balcioglu et al 2007;Merayo et al 2013) or the generation of carbonate along the mineralization process (Oeller et al 1997).…”

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

152

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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: 95%

Section: Ozone Oxidation Processesmentioning

confidence: 99%

Section: Ozone Oxidation Processesmentioning

confidence: 99%

Section: Ozone Oxidation Processesmentioning

confidence: 99%

Section: Ozone Oxidation Processesmentioning

confidence: 99%

See 3 more Smart Citations

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

152

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Electrochemical degradation of pulp and paper industry waste‐water

Soloman

Basha

Velan

et al. 2009

J of Chemical Tech & Biotech

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BACKGROUND: Conventional biological waste-water treatment techniques are insufficient to degrade large quantities of dissolved lignin discharged by small-scale paper mills. The current investigation is aimed at comparing the overall performance of basic electrochemical reactor configurations such as batch, batch recirculation, recycle and single pass systems, in removing the organic part of waste-water from a small-scale, agro-based paper industry. The effect of current density, supporting electrolyte concentration, duration of electrolysis, specific electrode surface and fluid flow rate on the removal of pollutants and energy consumption are critically evaluated. The improvement in biodegradability of the effluent during treatment is also noticed.

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Coupling of solar-assisted advanced oxidative and biological treatment for degradation of agro-residue-based soda bleaching effluent

Dhir

Prakash

Sud

2012

Environ Sci Pollut Res

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This study evaluates the effect of integrated solar-assisted advanced oxidation process (AOP) and biological treatment on the extent of degradation of effluents from chlorination (C) and first alkaline extraction (E(1)) stages of soda pulp bleaching in agro-residue-based pulp and paper mill. Biodegradation of the effluents was attempted in suspended mode using activated sludge from the functional pulp and paper industry effluent treatment plant acclimatized to effluents in question. The photocatalytic treatment was employed using zinc oxide (ZnO) in slurry mode for decontamination of effluents in a batch manner and the degradation was evaluated in terms of reduction in chemical oxygen demand. The biological treatment (24 h) of C and E(1) effluent resulted in 30 and 57 % of degradation, respectively. Solar-induced AOP of C and E(1) effluents resulted in 53 and 43 % degradation under optimized conditions (2.5 g L(-1) ZnO at pH 8.0) after 6 h of exposure. For C effluent, a short duration of solar/ZnO (1 h) prior to biological treatment reduced the time required at biological step from 24 to 12 h for almost same extent (92 %) of degradation. However, sequential biological treatment (24 h) followed by solar/ZnO (2 h) resulted in 85.5 % degradation. In contrast, in the case of E(1) effluent, sequential biological (24 h)-solar/ZnO (2 h) system effectively degrades effluent to 95.4 % as compared to 84.8 % degradation achieved in solar/ZnO (2 h)-biological treatment (24 h) system. In the present study, the sequencing of photocatalysis with the biological treatment is observably efficient and technically viable process for the complete mineralization of the effluents.

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Effects of ozonation process on lignin-derived compounds in pulp and paper mill effluents

Cited by 68 publications

References 28 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

Electrochemical degradation of pulp and paper industry waste‐water

Coupling of solar-assisted advanced oxidative and biological treatment for degradation of agro-residue-based soda bleaching effluent

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