Destruction of the organic matter present in effluent from a cellulose and paper industry using photocatalysis

Machado, Antônio Eduardo da Hora; Miranda, Jacques Antonio de; Freitas, Renato F. de; Duarte, Edward; Ferreira, Lucas Franco; Albuquerque, Yaico D. T.; Ruggiero, Reinaldo; Sattler, Christian; Oliveira, Lamark de

doi:10.1016/s1010-6030(02)00393-3

Cited by 113 publications

(74 citation statements)

References 32 publications

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“…After 7 h of irradiation, the degree of degradation by the 500°C product reached 92% and that by the 600°C products was only 74%. As reported, the surface adsorption by the catalyst would play an important role in photocatalysis even as a prerequisite condition in some cases (Machado et al, 2003;Minero et al, 1992). The superior catalytic ability of our products resulted in the efficient degradation of MV in the aqueous solution.…”

Section: Degradation Of MV Under Visible Light Irradiationsupporting

confidence: 55%

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Catalytic Activity of Biomorphic α-MoO₃ in the Degradation of Methyl Violet Dye

Diao

Kwong²,

Li³

et al. 2012

Environmental Engineering Science

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A network of fibers comprising orthorhombic molybdenum trioxide (a-MoO 3 ) crystals were synthesized using paper as template via a biomorphic approach. The template was completely removed by annealing the sample at 600°C for 5 min. Monoclinic MoO 3 was formed and consequently converted into orthorhombic a-MoO 3 after prolonged annealing. Three milligrams of the biomorphic a-MoO 3 could degrade up to 90% of a methyl violet aqueous solution with a concentration of 20 mg/L under normal visible light. The size of the a-MoO 3 grains and the porosity of the biomorphic sample affected catalytic performance.

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Section: Degradation Of MV Under Visible Light Irradiationsupporting

confidence: 55%

“…O rthorhombic molybdenum trioxide (a-MoO 3 ) was reported to have photocatalytic enhancement in oxidative dehydrogenation of alcohol (Ono et al, 1986) and oxidation of hydrocarbons (Marcinkowska et al, 1984). It is known that the increase in surface area of the catalyst would further enhance the catalytic activities.…”

Section: Introductionmentioning

confidence: 99%

Catalytic Activity of Biomorphic α-MoO₃ in the Degradation of Methyl Violet Dye

Diao

Kwong²,

Li³

et al. 2012

Environmental Engineering Science

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“…TiO 2 , ZnO, CeO 2 , CdS or ZnS can be utilized as catalysts in the UV treatment which causes a large amount of radicals to be formed on the surface of catalyst yielding many compounds to degrade. Especially TiO 2 is widely employed because of its non-toxicity and photo-stability in a wide range of pH (Machado et al 2003). The photocatalytic reaction occurs when the semiconductor is activated by light and a band gap is generated.…”

Section: Oxidation Processesmentioning

confidence: 99%

Refractory organic pollutants and toxicity in pulp and paper mill wastewaters

Lindholm‐Lehto

Knuutinen

Ahkola

et al. 2015

Environ Sci Pollut Res

134

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“…It is clear that the optimum catalyst concentration was about 0.07 gL −1 . Reported optimum catalyst loadings for wastewater treatment are usually within a range of 0.1-1 gL −1 [7,8,33]; however some studies have also reported lower optimum loadings (0.05 gL −1 ) [34]. However, in all cases, the optimum value strongly depends on the reactor design, pollutant type, and concentration [35].…”

Section: Effect Of Catalyst Dosagementioning

confidence: 99%

Photocatalytic Treatment of Shower Water Using a Pilot Scale Reactor

Boyjoo

Ang

Pareek

2012

International Journal of Photoenergy

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Treatment of shower water deserves special consideration for reuse not only because of its low pollutant loading but also because it is produced in large quantities. In this study, a pilot scale study of photocatalytic degradation of impurities in real shower water was performed in a 31 L volume reactor using titanium dioxide as the photocatalyst. The reactor was operated in a continuous slurry recirculation mode. Several operational parameters were studied including the slurry initial pH, catalyst concentration, air flow rate, and slurry recirculation rate. Up to 57% of total organic carbon (TOC) elimination was obtained after 6 hours of treatment (for 3.0 slurry initial pH, 0.07 gL −1 catalyst concentration, 1.8 Lmin −1 air flow rate, and 4.4 Lmin −1 slurry recirculation rate). This study showed that photocatalysis could be successfully transposed from bench scale to pilot scale. Furthermore, the ease of operation and the potential to use solar energy make photocatalysis an attractive prospect with respect to treatment of grey water.

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Destruction of the organic matter present in effluent from a cellulose and paper industry using photocatalysis

Cited by 113 publications

References 32 publications

Catalytic Activity of Biomorphic α-MoO₃ in the Degradation of Methyl Violet Dye

Catalytic Activity of Biomorphic α-MoO₃ in the Degradation of Methyl Violet Dye

Refractory organic pollutants and toxicity in pulp and paper mill wastewaters

Photocatalytic Treatment of Shower Water Using a Pilot Scale Reactor

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Destruction of the organic matter present in effluent from a cellulose and paper industry using photocatalysis

Cited by 113 publications

References 32 publications

Catalytic Activity of Biomorphic α-MoO3 in the Degradation of Methyl Violet Dye

Catalytic Activity of Biomorphic α-MoO3 in the Degradation of Methyl Violet Dye

Refractory organic pollutants and toxicity in pulp and paper mill wastewaters

Photocatalytic Treatment of Shower Water Using a Pilot Scale Reactor

Contact Info

Product

Resources

About

Catalytic Activity of Biomorphic α-MoO₃ in the Degradation of Methyl Violet Dye

Catalytic Activity of Biomorphic α-MoO₃ in the Degradation of Methyl Violet Dye