Degradation of Acid orange 3 in aqueous solution by combination of Fly ash/H2O2 and ultrasound irradiation
نویسندگان
چکیده
An efficient and convenient method for degradation of Acid orange 3 (AO3) dye from aqueous solution by combination of Fly ash/H2O2 and ultrasound irradiation is reported. The effects of the relevant operating conditions (pH value, dye concentration, H2O2 concentration, dosage of Fly ash and different reaction system) on the degradation of AO3 were also observed. The combination method was found to be effective and could yield better results than either sonolysis or Fenton-like oxidation individually. Removal of 96% was obtained under the optimum conditions (dye concentration, 100 mg/L; H2O2, 5.4 mM; Fly ash, 2.5 g/L; pH 3, ultrasonic irradiation frequency of 25 kHz, room temperature). The process of the degradation follows Behnajady’s kinetic mathematical model.
منابع مشابه
Photodegradation process for the removal of acid orange 10 using titanium dioxide and bismuth vanadate from aqueous solution
In this study, the photocatalytic degradation of azo-dye acid orange 10 was investigated using titanium dioxide catalyst suspension, irradiation with ultraviolet-C lamp and bismuth vanadate under visible light of light-emitting diode lamp. Response surface methodology was successfully employed to optimize the treatment of acid orange 10 dye and assess the interactive terms of four factors. The ...
متن کاملSynthesis of Oxazolone and Imidazolone Derivatives in Presence of H2O2 Promoted Fly Ash as a Novel and Efficient Catalyst
A new catalyst was prepared by promoting fly ash with hydrogen peroxide. The catalytic activity of H2O2 promoted fly ash (HPFA) was evaluated by synthesis 5(4H)-oxazolone and imidazolone derivatives under solvent free conditions. The possible mechanisms of synthesis reactions were also suggested. These proposed methods benefit in terms of low-cost catalyst, high yields, ease of workup, survival...
متن کاملDecomposition of a Di Azo Dye in aqueous solutions by
This study examined the photolytic degradation of C.I. Acid Red 73 AR73 diazo dye, in aqueous solution by combined UV, hydrogen peroxide and KMnO4. A continuous circulated photoreactor equipped with a low pressure mercury lamp 15 W, emission 253.7 nm was used. In the first step, potassium permanganate was used for decolourisation of AR73 dye solution. The effect of the key operating variables s...
متن کاملPhotocatalytic process using magnesium oxide nanoparticles for amoxicillin removal from aqueous solution
Background & Aim: Excessive consumption of antibiotics and their incomplete metabolization in human and animals, as well as inadequate removal by conventional waste water system leads to the release of these chemicals into the environment. Antibiotics have adverse effects including bacterial resistance, digestive disorders and genotoxic. Therefore the aim of this study was to survey amoxicillin...
متن کاملSimultaneous degradation and adsorption of cyanide using modified fly ASH and TiO2/UV
Due to the present water shortage and environmental problems associated with industrial effluent, investigation of novel treatment technologies is an essential approach. Being a highly toxic chemical of asphyxiating characteristics, cyanide is seen as a major environmental pollutant in a wide range of industrial effluents. The present study aimed to address the adsorption and photocatalytic deg...
متن کامل