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Removal of zinc and copper from contaminated water using Ficus religiosa leaves: Kinetic,equilibrium and mechanistic studies
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نویسنده
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kazmi m. ,ramzan n. ,feroze n. ,almas q. ,zafar m. ,saeed z.
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منبع
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pakistan journal of agricultural sciences - 2015 - دوره : 52 - شماره : 3 - صفحه:619 -625
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چکیده
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The removal of copper {cu(ii)} and zinc {zn(ii)} ions from aqueous solution has been investigated using ground ficus religiosa leaves (gfrl). the characterization of gfrl was performed using chns analyzer,x-ray diffraction (xrd) and scanning electron microscope (sem). the effect of contact time and initial concentration was observed at 33±1°c. the biosorption of cu(ii) and zn(ii) on gfrl showed fast kinetic behavior with an equilibrium time ~ 60 minutes. the pseudo second order kinetics described the kinetic behavior. the optimum gfrl dose was 10 g/l in case of both metals. the effect of initial metal concentration showed the performance of gfrl under various mass transfer driving forces and was well described by langmuir model with qmax: 28.02 mg/g for cu(ii) and 24.90 mg/g for zn(ii). © 2015 university of agriculture. all rights reserved.
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کلیدواژه
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Agricultural waste; Biosorption; Environment; Heavy metals; Industrial wastewater
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آدرس
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department of chemical,polymer and composite materials engineering,university of engineering and technology,ksk campus, Pakistan, department of chemical engineering,university of engineering & technology, Pakistan, department of chemical engineering,university of engineering & technology, Pakistan, department of chemical,polymer and composite materials engineering,university of engineering and technology,ksk campus, Pakistan, department of chemical,polymer and composite materials engineering,university of engineering and technology,ksk campus, Pakistan, department of chemical engineering,university of engineering & technology, Pakistan
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Authors
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