کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
691806 1460442 2012 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Removal of Fe(III), Mn(II) and Zn(II) from palm oil mill effluent (POME) by natural zeolite
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تکنولوژی و شیمی فرآیندی
پیش نمایش صفحه اول مقاله
Removal of Fe(III), Mn(II) and Zn(II) from palm oil mill effluent (POME) by natural zeolite
چکیده انگلیسی

The adsorption capacity of natural zeolite for the removal of heavy metal ions, zinc Zn(II), manganese Mn(II) and iron Fe(III), found in palm oil mill effluent was investigated in this study. The effects of contact time, agitation speed, pH, and sorbent dosage on the sorption of heavy metals were evaluated. The desorption potential of zeolite was also investigated. The sorption was fast with equilibrium reached within 180 min. The metal sorption increased with pH, and adsorption capacities ranged between 0.015 and 1.157 mg/g of zeolite. Equilibrium data followed the Langmuir isotherm model while the kinetic data were well described by the pseudo-second-order model. Maximum desorption was attained by HCl with 69.638, 58.575 and 61.516% of the initial adsorbed amount for Fe, Zn and Mn, respectively. More than 50% of Zn(II) and Mn(II) and about 60% of Fe(III) could be removed in the experiments.


► We removed Fe(III), Zn(II) and Mn(II) ions by natural zeolite from palm oil mill effluent (POME).
► Percentage of metallic ions removal by natural zeolite was ∼65% for Fe, ∼52% for Mn and ∼54% for Zn.
► Maximum adsorption capacity was dependent on the type of ions.
► Adsorption of three metal ions on to zeolite followed by pseudo-second order model.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of the Taiwan Institute of Chemical Engineers - Volume 43, Issue 5, September 2012, Pages 750–759
نویسندگان
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