نشریه علمی فرآیند نو

نشریه علمی فرآیند نو

استفاده از لیگنین کربنیزه‌شده برای حذف آزیترومایسین از آب دی‌یونیزه

نوع مقاله : پژوهشی

نویسندگان
1 گروه مهندسی شیمی - دانشکده نفت گاز و پتروشیمی - دانشگاه خلیج فارس
2  گروه مهندسی شیمی - دانشکده نفت گاز و پتروشیمی - دانشگاه خلیج فارس
چکیده
لیگنین کربونیزه‌شده به‌عنوان یک جاذب سبز و ارزان‌قیمت برای حذف آزیترومایسین از محلول آبی بررسی شد و عملکرد آن با کربن فعال تجاری مقایسه گردید. جاذب‌ها با استفاده از آنالیزهای BET و FTIR تعیین خواص شدند. سطح ویژه (روش BET) برای لیگنین کربونیزه‌شده و کربن فعال تجاری به‌ترتیبm2/g ۶۳۲ و m2/g ۷۰۷ به‌دست آمد. آزمایش‌های جذب با استفاده از روش آزمایش تاگوچی و نرم‌افزار Minitab انجام شد و اثر پارامترهای دما، pH و مقدار جاذب مورد بررسی قرار گرفت. شرایط بهینه برای هر دو جاذب شامل دمای °C ۶۰ ، pH برابر ۳ و دوز جاذب ۱٫۵ گرم بر لیتر بود. تحت این شرایط، راندمان حذف آزیترومایسین توسط لیگنین کربونیزه‌شده ۸۹٫۵ و توسط کربن فعال تجاری ۹۳٫۰۲ به‌دست آمد. با وجود سطح ویژه کمتر، برای لیگنین کربونیزه‌شده عملکرد قابل‌مقایسه‌ای مشاهده شد که بیانگر پتانسیل بالای آن به‌عنوان جاذبی پایدار، اقتصادی و زیست‌سازگار برای حذف آلاینده‌های آنتی‌بیوتیکی از منابع آبی است.
کلیدواژه‌ها
موضوعات

عنوان مقاله English

Utilization of Carbonized Lignin for the Removal of Azithromycin in Deionized Water

نویسندگان English

Fatemeh Doraghi 1
Masoud Mofarahi 2
Mohsen Abasi 1
1 Deepartment of Chemical Engineering, Faculty of Petroleum, Gas and Petrochemical Engineering, Persian Gulf University, Bushehr 75169, Iran
2 Department of Chemical Engineering, Faculty of Petroleum, Gas and Petrochemical Engineering, Persian Gulf University, Bushehr 75169, Iran
چکیده English

Carbonized lignin was investigated as a low-cost, sustainable adsorbent for azithromycin removal from aqueous solutions and compared with commercial activated carbon. Both adsorbents were characterized using Brunauer–Emmett–Teller (BET) surface area analysis and Fourier-transform infrared (FTIR) spectroscopy. The BET surface areas were 632 m²/g for carbonized lignin and 707 m²/g for activated carbon. Batch adsorption experiments were designed using the Taguchi method to evaluate the effects of pH, adsorbent dosage, and temperature. The optimum conditions for both adsorbents were pH 3, 60 °C, and an adsorbent dosage of 1.5 g/L. Under these conditions, azithromycin removal efficiencies reached 89.5% and 93.02% for carbonized lignin and activated carbon, respectively. Despite its lower surface area, carbonized lignin exhibited adsorption performance comparable to activated carbon, demonstrating its potential as a cost-effective and environmentally sustainable adsorbent for antibiotic-contaminated water treatment.

کلیدواژه‌ها English

Azithromycin adsorption
carbonized lignin
activated carbon
Taguchi method
emerging pharmaceuticals
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