Removal of organic contaminants in paper pulp treatment effluents under Fenton and photo-Fenton conditions

Pérez, Montserrat; Torrades, Francesc; García‐Hortal, José Antonio; Domènech, Xavier; Peral, José

doi:10.1016/s0926-3373(01)00281-8

Cited by 268 publications

(123 citation statements)

References 32 publications

Supporting

Mentioning

111

Contrasting

Unclassified

Order By: Relevance

“…Therefore, temperature seems to be assisting alternative ways of H 2 O 2 cleavage, OH· formation, or Fe (II) recovery. On the other hand, the same persistent organic fraction (TOC = 50 ppm) remained in solution from 40 to 70 ºC; and bubbling O 2 through the solutions neither improved the results of this treatment (Pérez et al 2002b). …”

Section: Photo-fentonmentioning

confidence: 97%

“…Tambosi et al 2006). In fact, faster TOC removal rates have been shown at pH=2.8 (Hermosilla et al 2009a;Pérez et al 2002b). Besides, either a strong acidic media (pH=1.5), or under neutral-basic conditions (pH=8), slowed down the process mainly because of the instability that hydrogen peroxide and iron species showed in the solution .…”

Section: Photo-fentonmentioning

confidence: 99%

“…In addition, the temperature dependence of this process has also been assessed addressing the result of an improved reaction rate when temperature was raised from 25 to 40 ºC (Pérez et al 2002b). Therefore, temperature seems to be assisting alternative ways of H 2 O 2 cleavage, OH· formation, or Fe (II) recovery.…”

Section: Photo-fentonmentioning

confidence: 99%

“…Fe(OH) 2+ (H 2 O) 5 is the predominant species at pH=2-3, and it holds one of the largest light absorption coefficients and quantum yields for OH· production along with Fe (II) regeneration, ranging from 280 to 370 nm (Benkelberg and Warneck 1995;Pérez et al 2002b).…”

Section: Photo-fentonmentioning

confidence: 99%

“…Photo-Fenton processes can alternatively be driven by low-energy photons in the visible range of the spectrum (Pérez et al 2002b;Safarzadeh-Amiri et al 1996). As a result, photo-Fenton processes may be implemented at a significantly reduced cost when performed using solar irradiation (Pérez et al 2002b).…”

Section: Solar Photo-fentonmentioning

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

159

View full text Add to dashboard Cite

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.

show abstract

Section: Photo-fentonmentioning

confidence: 97%

Section: Photo-fentonmentioning

confidence: 99%

Section: Photo-fentonmentioning

confidence: 99%

Section: Photo-fentonmentioning

confidence: 99%

Section: Solar Photo-fentonmentioning

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

159

View full text Add to dashboard Cite

show abstract

Exploring the Mechanism of Peroxodisulfate Activation with Silver Metavanadate to Generate Abundant Reactive Oxygen Species

Singh

Hollmann

Schwarze

et al. 2021

Advanced Sustainable Systems

View full text Add to dashboard Cite

Reactive oxygen species (ROS) containing sulfate and hydroxyl radicals can act as Fenton type reagents to remove organic contaminants from water. Here, a catalytic system silver metavanadate is reported for the activation of peroxodisulfate in an aqueous medium to generate ROS, which is further utilized for the efficient degradation of the water‐soluble pollutants such as phenols, pesticides, antibiotics, and organic dyes. Remarkably, complete carbon mineralization of the water‐soluble contaminants is achieved to form carbon dioxide as the major product. In‐situ electron paramagnetic resonance (EPR) studies combined with ex‐situ methods reveal that a massive amount of hydroxyl radicals (•OH) are formed through sulfate radical anions (SO4•−) and act as the ROS for the organic pollutant degradation. In addition, the stability of the catalyst is monitored by various characterization techniques.

show abstract

Chemodynamic Therapy: Tumour Microenvironment‐Mediated Fenton and Fenton‐like Reactions

et al. 2018

View full text Add to dashboard Cite

Tailored to the specific tumour microenvironment, which involves acidity and the overproduction of hydrogen peroxide, advanced nanotechnology has been introduced to generate the hydroxyl radical (.OH) primarily for tumour chemodynamic therapy (CDT) through the Fenton and Fenton‐like reactions. Numerous studies have investigated the enhancement of CDT efficiency, primarily the increase in the amount of .OH generated. Notably, various strategies based on the Fenton reaction have been employed to enhance .OH generation, including nanomaterials selection, modulation of the reaction environment, and external energy fields stimulation, which are discussed systematically in this Minireview. Furthermore, the potential challenges and the methods used to facilitate CDT effectiveness are also presented to support this cutting‐edge research area.

show abstract

Removal of organic contaminants in paper pulp treatment effluents under Fenton and photo-Fenton conditions

Cited by 268 publications

References 32 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

Exploring the Mechanism of Peroxodisulfate Activation with Silver Metavanadate to Generate Abundant Reactive Oxygen Species

Chemodynamic Therapy: Tumour Microenvironment‐Mediated Fenton and Fenton‐like Reactions

Contact Info

Product

Resources

About