کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4388446 1618004 2016 13 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Efficient remediation of Zr(IV) using citrus peel waste biomass: Kinetic, equilibrium and thermodynamic studies
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک بوم شناسی، تکامل، رفتار و سامانه شناسی
پیش نمایش صفحه اول مقاله
Efficient remediation of Zr(IV) using citrus peel waste biomass: Kinetic, equilibrium and thermodynamic studies
چکیده انگلیسی


• Citrus peel biomass was undergone Zr(IV) adsorption.
• Process variables were optimized for maximum Zr(IV) adsorption.
• Kinetics, isotherms, thermodynamics, FTIR and desorption studies were undertaken.
• Citrus biomass proved to efficient adsorbent for Zr(IV) adsorption.

In research of low cost adsorbents for the adsorption of radioactive nuclide, citrus peel waste biomass (CPWB) was studied for the adsorption of zirconium (Zr) ions from aqueous medium. Various process variables were investigated for Zr(IV) adsorption and 3.5, 0.05 g, 40 min, 30° C and 90 mg/L pH, biosobent dose, contact time, temperature and initial Zr(IV) ions concentration, respectively were found out to be best for Zr(IV) adsorption. At optimized conditions, 42.02 mg/g Zr(IV) was adsorbed onto CPWB. Pseudo-second-order kinetic model and Langmuir isotherm model described the Zr(IV) adsorption on to CPWB well. Thermodynamic study showed that the biosorption of Zr(IV) ions onto CPWB was feasible, spontaneous at room temperature and exothermic in nature. FTIR analysis revealed the involvement of carbonyl, hydroxyl and amino functional group in the adsorption of Zr(IV) ions onto CPWA. In view of efficient adsorption of Zr(IV) ions, CPWB is a potential candidates for the adsorption of radioactive nuclide from waste.

Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ecological Engineering - Volume 95, October 2016, Pages 216–228
نویسندگان
, , , , ,