توجه: محتویات این صفحه به صورت خودکار پردازش شده و مقاله‌های نویسندگانی با تشابه اسمی، همگی در بخش یکسان نمایش داده می‌شوند.
۱Removal of Pb(II) from water samples with new adsorbent
اطلاعات انتشار: اولین همایش بین المللی بحران های زیست محیطی ایران و راهکارهای بهبود آن، سال
تعداد صفحات: ۵
Immobilization of heavy metals from contaminated environments is an emerging field of interest from both resource conservation and environmental remediation points of view. This paper describes the adsorption of Lead ions from aqueous solutions by sawdust modified by diethylenetriamine (DETA). Sawdust was chemically modified by a two–step procedure consisting of acidification with HCl and subsequent modification with diethylenetriamine. This chemical modification procedure was studied to compare the fourier transform of infrared spectroscopy (FTIR) and scanning electron microscopy (SEM) before and after the modification. The optimum shaking speed, adsorbent mass, contact time, and pH were determined. The maximum removal efficiencies were 100% for Pb(II) at pH 4, contact time 20 min, adsorbent dosage 1.0 g L–1, shaking speed100 rpm. The method was applied to the removal of copper in tap water and river water samples from different parts of Khouzestan, Iran.<\div>
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