Degradation of safranin by heterogeneous Fenton processes using peanut shell ash based catalyst

Autor:	Amir Ikhlaq, Farhan Javed, Hafiza Zara Anwar, Saba Gull
Rok vydání:	2019
Předmět:	Environmental Engineering Aqueous solution Arachis Chemistry Iron Water pollutants Hydrogen Peroxide Hydrogen-Ion Concentration Catalysis chemistry.chemical_compound Reagent Safranin Phenazines Degradation (geology) Water Pollutants Chemical Water Science and Technology Nuclear chemistry
Zdroj:	Water Science and Technology. 79:1367-1375
ISSN:	1996-9732 0273-1223
DOI:	10.2166/wst.2019.132
Popis:	Today, dyes are one of the major problematic pollutants in the environment and are broadly used in several industrial sectors. In the current research work, decolorization of safranin (basic dye) from aqueous solution was investigated using iron-impregnated peanut shell ash (Fe-PSA) as a catalyst in the UV-assisted heterogeneous Fenton process (Fe-PSA/H2O2/UV). The effect of parameters such as H2O2 concentration, catalyst dose, pH, initial dye concentration, temperature, and agitation speed was studied. The maximum decolorization of safranin was achieved at optimum parametric values of reagent dose = 8 mM, catalyst dose = 0.5 g, pH = 3, initial concentration of safranin = 50 ppm, temperature = 25 °C, and agitation speed = 200 rpm. The results revealed the efficient performance of Fe-PSA as catalyst in the Fe-PSA/H2O2/UV process for safranin treatment.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cc681598efa62b06f00f3623fc9e8ed3 https://doi.org/10.2166/wst.2019.132 Zobrazit plný text záznamu