Tags

Type your tag names separated by a space and hit enter

Decolorization of dark brown colored coffee effluent by solar photo-Fenton reaction: effect of solar light dose on decolorization kinetics.
Water Res. 2008 Nov; 42(18):4665-73.WR

Abstract

The decolorization of dark brown colored coffee effluent by solar photo-Fenton process has been studied. Effects of accumulated solar light energy and dosage of Fenton reagents (iron and hydrogen peroxide) on the color removal have been examined. With increasing Fe dosage the rate of the decolorization increased but the enhancement was not pronounced beyond 10 mg L(-1). Although addition of H(2)O(2) increased the decolorization rate up to around 1000 mg L(-1) of H(2)O(2), further addition of H(2)O(2) could not enhance the color removal. At excess dosages of Fenton reagents, the color removal was not improved due to their scavenging of hydroxyl radicals. It was found that the pseudo-first order decolorization kinetic constant based on the accumulated solar energy is a sole parameter unifying solar photo-Fenton decolorization processes under the different weather conditions. The kinetic constant can be readily used to calculate the amount of solar energy required to achieve a certain degree of color removal. The mineralization was rather slower as compared with the decolorization. The decolorization capability with solar irradiation was found to be comparable to UV light irradiation. The present results suggest that abundant solar energy driving decolorization of coffee effluent by photo-Fenton reaction is highly efficient.

Authors+Show Affiliations

Research Center for Biochemical and Environmental Engineering, Department of Applied Chemistry, Toyo University, 2100 Kujirai, Kawagoe, Saitama, Japan.No affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

18762315

Citation

Tokumura, Masahiro, et al. "Decolorization of Dark Brown Colored Coffee Effluent By Solar photo-Fenton Reaction: Effect of Solar Light Dose On Decolorization Kinetics." Water Research, vol. 42, no. 18, 2008, pp. 4665-73.
Tokumura M, Znad HT, Kawase Y. Decolorization of dark brown colored coffee effluent by solar photo-Fenton reaction: effect of solar light dose on decolorization kinetics. Water Res. 2008;42(18):4665-73.
Tokumura, M., Znad, H. T., & Kawase, Y. (2008). Decolorization of dark brown colored coffee effluent by solar photo-Fenton reaction: effect of solar light dose on decolorization kinetics. Water Research, 42(18), 4665-73. https://doi.org/10.1016/j.watres.2008.08.007
Tokumura M, Znad HT, Kawase Y. Decolorization of Dark Brown Colored Coffee Effluent By Solar photo-Fenton Reaction: Effect of Solar Light Dose On Decolorization Kinetics. Water Res. 2008;42(18):4665-73. PubMed PMID: 18762315.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Decolorization of dark brown colored coffee effluent by solar photo-Fenton reaction: effect of solar light dose on decolorization kinetics. AU - Tokumura,Masahiro, AU - Znad,Hussein Tawfeek, AU - Kawase,Yoshinori, Y1 - 2008/08/14/ PY - 2008/05/22/received PY - 2008/08/04/revised PY - 2008/08/07/accepted PY - 2008/9/3/pubmed PY - 2009/2/10/medline PY - 2008/9/3/entrez SP - 4665 EP - 73 JF - Water research JO - Water Res VL - 42 IS - 18 N2 - The decolorization of dark brown colored coffee effluent by solar photo-Fenton process has been studied. Effects of accumulated solar light energy and dosage of Fenton reagents (iron and hydrogen peroxide) on the color removal have been examined. With increasing Fe dosage the rate of the decolorization increased but the enhancement was not pronounced beyond 10 mg L(-1). Although addition of H(2)O(2) increased the decolorization rate up to around 1000 mg L(-1) of H(2)O(2), further addition of H(2)O(2) could not enhance the color removal. At excess dosages of Fenton reagents, the color removal was not improved due to their scavenging of hydroxyl radicals. It was found that the pseudo-first order decolorization kinetic constant based on the accumulated solar energy is a sole parameter unifying solar photo-Fenton decolorization processes under the different weather conditions. The kinetic constant can be readily used to calculate the amount of solar energy required to achieve a certain degree of color removal. The mineralization was rather slower as compared with the decolorization. The decolorization capability with solar irradiation was found to be comparable to UV light irradiation. The present results suggest that abundant solar energy driving decolorization of coffee effluent by photo-Fenton reaction is highly efficient. SN - 0043-1354 UR - https://www.unboundmedicine.com/medline/citation/18762315/Decolorization_of_dark_brown_colored_coffee_effluent_by_solar_photo_Fenton_reaction:_effect_of_solar_light_dose_on_decolorization_kinetics_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0043-1354(08)00326-6 DB - PRIME DP - Unbound Medicine ER -
Try the Free App:
Prime PubMed app for iOS iPhone iPad
Prime PubMed app for Android
Prime PubMed is provided
free to individuals by:
Unbound Medicine.