Red Reactive 2 Dye Removal from Aqueous Solutions by Pumice as a Low-Cost and Available Adsorbent

سال انتشار: 1395
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 465

فایل این مقاله در 8 صفحه با فرمت PDF قابل دریافت می باشد

استخراج به نرم افزارهای پژوهشی:

لینک ثابت به این مقاله:

شناسه ملی سند علمی:

JR_AHS-5-3_001

تاریخ نمایه سازی: 19 آبان 1397

چکیده مقاله:

Background & Aims of the Study: Azo dyes are used in industrial processes such as textileindustry to produce large quantities of colored effluents that contain organic and nonorganicmaterials. So, effective and efficient treatment of them is important for theenvironmental protection. The aim of this study was to evaluate the efficiency of powderand granular pumice for the removal of red reactive 2 in an aqueous solution.Materials & Methods: This is an experimental study on a laboratory scale. Powder andgranular pumice were prepared in a laboratory condition as an adsorbent. The studyconducted on synthetic samples that contain red reactive 2 dye. The efficiency of pumice inpowder and granular form, with different concentration, pH and contact time was tested.Results: Absorption of red reactive 2 is a function of the amount of adsorbent, impressedby pH and contact time. By increasing the amount of adsorbent from 0.5 to 2 gr, theabsorption rate increased around 50% to 96%. The maximum uptake for each of testingprocedures was accrued in acidic solution (pH=3) and 40 minute contact time. Langmuirand Freundlich isotherms models were derived from the experimental procedures.Conclusions: The results showed that the efficiency of powders form was better thangranules. Due to the abundance of quarries in Iran, it could be used as a useful adsorbent inwastewater.

کلیدواژه ها:

PumiceRed Reactive 2 DyeAqueous SolutionsAvailable AdsorbentAdsorbtionIran

نویسندگان

Fateme Asadi

Department of Environmental Health Engineering, Health School, Kermanshah University of Medical Sciences, Kermanshah Iran

Abdollah Dargahi

Department of Environmental Health Engineering, Health School, Hamadan University of Medical Sciences,Hamadan,Iran

Ali Almasi

Department of Environmental Health Engineering, Health School, Social Development And Health PromotionResearch Center, Kermanshah Universityof Medical Science, Kermanshah Iran

Elham Moghofe

Department of Environmental Health Engineering, Health School, Kermanshah University of Medical Sciences, Kermanshah Iran