Color, TOC and AOX removals from pulp mill effluent by advanced oxidation processes: A comparative study

Çatalkaya, Ebru Çokay; Kargı, Fikret

doi:10.1016/j.jhazmat.2006.06.023

Cited by 183 publications

(107 citation statements)

References 33 publications

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“…Initially, Bauman and Lutz (1974) and Nebel et al (1974) proposed that the achieved oxidation does depend on the ozone feeding concentration in their early reports. On the other hand, Catalkaya and Kargi (2007) did not find color and TOC removals to be affected by ozone feeding rate working with effluents from paper mills, although AOX removal increased at higher ozone feeding rates. 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.…”

Section: Ozone Oxidation Processesmentioning

confidence: 67%

“…Besides, Catalkaya and Kargi (2007) found a better degradation rate at pH = 9 than at 11, and also addressed that pH must be at least as low as 7 to perform an enhanced oxidation. Correspondingly, Medeiros et al (2008) also showed higher color and HMW fraction removals and biodegradability increase at pH = 7 than at 12.…”

Section: Ozone Oxidation Processesmentioning

confidence: 96%

“…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%

“…Particularly, the success of ozonation applied to real wastewater from pulp and paper mills, whether biologically pre-treated or not, and effluents from bleaching stages, has been mainly attributed to the effective degradation of toxic lignin products and chlorophenolic compounds (Amat et al 2005b;Balcioglu et al 2007;Bierbaum et al 2012;Bijan and Mohseni 2004;Bijan and Mohseni 2005;Catalkaya and Kargi 2007;Fontanier et al 2005b;Fontanier et al 2006;Mansilla et al 1997;Oeller et al 1997;Rodríguez et al 1998;Roy-Arcand and Archibald 1996;Salokannel et al 2007;Sevimli 2005;Wang et al 2004;Yeber et al 1999a;Yeber et al 1999b). 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).…”

Section: Ozone Oxidation Processesmentioning

confidence: 99%

“…According to Gogate and Pandit (2004), and Mounteer et al (2007), H 2 O 2 produces faster ozone degradation. In fact, a millimolar concentration of HO 2 − (the conjugate base of H 2 O 2 ) initiates the decomposition of ozone also producing hydroxyl radical much more rapidly than hydroxide ion does (Catalkaya and Kargi 2007) as it is described by the following reactions (Glaze 1987):…”

Section: Combination Of Ozone and H 2 O 2 In An Oxidation Treatment (mentioning

confidence: 99%

See 4 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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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: 67%

Section: Ozone Oxidation Processesmentioning

confidence: 96%

Section: Ozone Oxidation Processesmentioning

confidence: 99%

Section: Ozone Oxidation Processesmentioning

confidence: 99%

Section: Combination Of Ozone and H 2 O 2 In An Oxidation Treatment (mentioning

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

View full text Add to dashboard Cite

show abstract

Constructed Wetland Technology for Pulp and Paper Mill Wastewater Treatment

Kumar

Choudhary

2018

Constructed Wetlands for Industrial Wastewater Treatment

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Removal of Recalcitrant Organic Compounds From an Industrial Complex Effluent by Heterogeneous Fenton‐Type Treatment

Covinich

Felissia

Fenoglio

et al. 2017

CLEAN Soil Air Water

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Because of their chemical complexity, industrial chemi-mechanical pulping effluents are evaporated and burned, in spite of the high associated cost involved in these processes. The aim of this study was to remove recalcitrant compounds from this kind of wastewater using a Fenton-type treatment. The main parameters involved in the process and their influence on the results were determined. Homemade catalysts based on CuO, Fe 2 O 3 , NiO, and ZnO, supported on g-Al 2 O 3 have been tested for catalytic oxidation, and the CuO/g-Al 2 O 3 catalysts showed the greatest effect on total organic carbon (TOC) reduction (52.7%). A series of two-level factorial experiments was subsequently applied to evaluate the most favorable range of conditions for CuO/g-Al 2 O 3 application. The studied variables were hydrogen peroxide concentration ([H 2 O 2 ], g/L), active phase content (metal oxide supported on alumina,%), mass of catalyst (metal oxide/alumina system, g), and reaction temperature (°C). The highest reduction of all parameters was obtained at the superior level of all variables with CuO/g-Al 2 O 3 , achieving reductions of chemical oxygen demand (COD) and TOC between 40 and 50%. Increasing catalyst mass did not produce additional benefit. This variable has a significant effect only on the reduction of aromatic compounds. At its low level, reduction in aromatic content exceeded 80%. Color reduction was influenced only by temperature (maximum reduction of 90%).

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Color, TOC and AOX removals from pulp mill effluent by advanced oxidation processes: A comparative study

Cited by 183 publications

References 33 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

Constructed Wetland Technology for Pulp and Paper Mill Wastewater Treatment

Removal of Recalcitrant Organic Compounds From an Industrial Complex Effluent by Heterogeneous Fenton‐Type Treatment

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