اکسیداسیون سونوشیمیایی رنگ اسید بلو 113 در محیط‌های آبی با استفاده از پراکسید هیدروژن و پرسولفات فعال شده با آهن فرو
Journal Title: آب و فاضلاب - Year 2016, Vol 27, Issue 2
Abstract
Sonochemical Oxidation of Acid Blue 113 by Fe (II)-activated Hydrogen Peroxide and Persulfate in Aqueous Environments Abstract Residual Azo dyes pose a major environment problem due to the benzene rings present in their structure. In this experimental study, the efficiencies of the US/H2O2/Fe2+ and US/S2O82‒/Fe2+ processes in degrading Acid Blue 113 Azo were investigated. For this purpose, the effects of the parameters involved in these processes such as initial solution pH in the range of 3 to 11, different concentrations of H2O2, and ‒S2O82 in the range of 1 to 10 mM, those of FeSO4 in the range of 0.1 to 1 mM, and different initial dye concenterations were investigated in a batch ultrasound reactor operated at 40 kHz. Also, the effects of aeration on process efficiency and fluctuations in the dye UV-Vis spectrum were investigated under optimum conditions. Based on the results obtained, dye removal efficiency decreased considerably in both processes with increasing pH such that maximum removal efficiency was obtained at pH 3 in both processes. Similarly dye removal efficiency decreased in both processes when FeSO4 concentration rose above 0.5 mM. The optimum conditions in the US/H2O2/Fe2+ process to achieve a removal efficiency of 93.5% for an initial dye concentration of 50 mg/L involved H2O2 and FeSO4 concentrations of 2.5 and 0.05 mM, respectively. Under the same optimal conditions, the efficiency of the US/S2O82‒/Fe2+ process was found to be 94.3% for a S2O82‒ concentration of 2.5 nM. These results suggest that the US/S2O82‒/Fe2+ is more effective than the US/H2O2/Fe2+ in reducing the 567 nm peak of the dye structure. Finally, examination of the changes in the UV-Vis spectra of Acid Blue 113 showed that the US/H2O2/Fe2+ process led to greater declines in the 276 and 203 nm peaks.
Authors and Affiliations
Abdolmotaleb Seid-Mohammadi, Ghorban Asgari, Jamal Mehr Ali Pour, Amir Shabanlo, Halimeh Almasi, Firuzeh Zaheri
Keywords
Related Articles
- EP ID EP179915
- DOI -
- Views 118
- Downloads 0
بررسي ميزان آرسنيک موجود در منابع آبي روستاهاي شهرريوش و مقايسه با استانداردهاي موجود با استفاده از GIS
GIS-based Assessment of Arsenic Contamination of Water Supplies in Rural Areas of Rivash Town: Comparisons with National and WHO Standards Arsenic is one of the most hazardous elements in drinking water. Water contaminat...
بررسي خاصيت آنتي باکتريال مواد پايه سيماني حاوي نانوذرات اکسيدروي بر روي باکتري‌هاي باسيلوس سرئوس و سودوموناس آئروژينوزا Investigation of the Antibactrial Effect of Cement Matrix Containing Zinc Oxide Nanoparticles on Bacillus cereus and Pseudomonas aeruginosa
Abstract Some of the nanoparticles such as zinc oxide have a significant antibacterial activity that can be used in removal of pathogenic organisms in certain water resources application. This study was specifically und...
بررسي ايزوترم و سينتيک جذب سرب از پساب سنتتيک با استفاده از خاک اره درخت اوکاليپتوس Kinetic and Isotherm Study of Lead Adsorption from Synthetic Effluent by Eucalyptus Sawdust
Kinetic and Isotherm Study of Lead Adsorption from Synthetic Effluent by Eucalyptus Sawdust Abstract Lead is a heavy metal which has many applications in different industries. Due to toxicity of lead, discharging indu...
برآورد تمايل شهروندان اصفهان به پرداخت براي آب مازاد کشاورزي جهت استفاده مصارف شرب Estimating Isfahan Citizens'- Willingness to Pay for Drinking Water Supplied from Agricultural Surplus Water
Abstract The vital role and significance of water for all life forms, and for human beings in particular, make it essential to determine its real value. This study was carried out in 2014 with the objective of making an...
بررسي حذف سورفکتانت آنيوني با استفاده از روش انعقاد و شناورسازي الکتريکي تک قطبي Investigation of Anionic Surfactant Removal Using Unipolar Electro-Flotation and Electro-Coagulation
Abstract Surfactants are considered as chemical combinations with many environmental impacts such as eutrophication, foam generation, and oxygen reduction. This experimental study is conducted to evaluate the removal of...