Title of article
Heavy Metal Removal Efficiency of Paper Mulberry Biochar and Commercially Available Silica Powder from Simulated Industrial Wastewater
Author/Authors
Adil, Sawaira Department of Environmental Science - International Islamic University Islamabad, Pakistan , Mashiatullah, Azhar Isotope Application Division - Directorate of Technology - Pakistan Institute of Nuclear Science and Technology - Islamabad, Pakistan , Asma, Maliha Department of Environmental Science - International Islamic University Islamabad, Pakistan , Abid, Jawaria Department of Environmental Science - International Islamic University Islamabad, Pakistan , Ghaffar, Abdul Department of Environmental Science - International Islamic University Islamabad, Pakistan
Pages
7
From page
446
To page
452
Abstract
Paper mulberry bio-char produced was characterized and evaluated for heavy metals removal from simulated industrial wastewater in compare to silica powder. The batch adsorption study was conducted under different conditions like, the effects of solution pH, contact time and temperature. The paper mulberry bio-char (PMB) was more effective and exhibited a higher adsorption potential for cadmium, copper, chromium,
lead and zinc than commercially available silica powder. Experiments conducted with an initial metal concentration of 50 mg/l at pH 2, 4, 8, 12. Maximum removal of cadmium, copper, chromium, lead and zinc by PMB was higher than silica powder. Contact time of 2, 3, 4 h showed maximum removal of cadmium, copper,
chromium, lead and zinc removal for PMB and was found higher than that of silica powder. The thermodynamic parameters such as G°, H° and S° were calculated for predicting the nature of sorption. The results showed that plant-residue bio-char can act as effective alternative sorbent instead of silica powder for the removal of heavy metal ions from industrial wastewater.
Farsi abstract
نذف ويژگيهاي زغال حاصل از درخت توت PMB در مقايسه با پودر سيليس براي حذف فلزات سنگين مورد ارزيابي قرار گرفت. اثر ما، زمان تماس و pH در جذب ناپيوسته بررسي گرديد. جذب كادميوم، مس، كروم و روي با ذغال PMB در مقايسه پودر سيليس سيار موثر تر بوده است. آزمايش با غلظت ا/mg
50 در pH 2، 4، 8 و 12 انجام شده نتايج نشان داده است كه در زمان تماس 2 تا 4 ساعت حد اكثر جذب كادميوم، مس، كروم و روي با زغال PMB در مقايسه با پودر سيليس جذب بيشتري بدست آمده است. بررسي و نشان داده است طبيعت و رفتار جذب قابل پيش بيني است. حاسبات پارامترهاي ترموديناميكي انرژي آزاد گيبس، انتالپي و انتروپي نتايج جذب فلزات سنگين فاضلاب صنعتي زغال بيشتر و موثر تر از پودر سيليس بوده است.
Keywords
Paper mulberry , Bio-char , Wastewater , Heavy metals , Voltammeter
Journal title
Astroparticle Physics
Serial Year
2014
Record number
2425952
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