REMOVAL OF ANTIBIOTICS (TETRACYCLINE AND PENICILLIN G) FROM WATER SOLUTIONS BY ADSORPTION ON ACTIVATED CARBON

Öz

It was studied to obtain active carbon from peanut shell, which is a cellulosic waste, to bring it to the economy and to remove it by adsorption of antibiotics, which are an important pollutant in both terrestrial and aquatic ecosystems, on activated carbon. In this study, antibiotics (Tetracycline and Penicillin G) adsorption were done on activated carbon under different conditions than aqueous solutions of different concentrations. The characteristic features and surface structure of the adsorbent are characterized by SEM EDX, BET and elemental analysis. The BET surface area of the activated carbon obtained was found to be 308.6 m2/g, the total pore volume was 0.13 cm3/g and the total micropore volume was 0.09 cm3/g. Removal studies have been carried out 30-40-60 oC and at pH values of 3-5-8 for Penicillin G, 30-40-60 oC and pH values of 3-7-9 for Tetracycline. When the analysis and correlation values were examined by using experimental data Langmuir and Freundlich isotherms, adsorption isotherm was found to be more compatible with Freundlich isotherm. It was found that the adsorption performed was physically adsorbed. It has been determined that the use of activated carbons in antibiotics removal is effective in reducing pollution.

Anahtar Kelimeler

• Adsorption
• Activated Carbon
• Antibiotic
• Aqueous Solution
• Peanut Shell

SULU ÇÖZELTİLERDEN AKTİF KARBON ÜZERİNE ADSORPSİYON İLE ANTİBİYOTİKLERİN (TETRASİKLİN VE PENİSİLİN G) GİDERİMİ

Öz

Selülozik yapıdaki bir atık olan yer fıstığı kabuğundan aktif karbon elde ederek ekonomiye kazandırılması ve hem karasal hem de sucul ekosistemlerde önemli bir kirletici olan antibiyotiklerin aktif karbon üzerine adsorpsiyonu ile giderimi çalışılmıştır. Bu çalışmada aktif karbon üzerine farklı derişimlerdeki sulu çözeltilerden farklı koşullarda antibiyotiklerin (Tetrasiklin Ve Penisilin G) adsorpsiyonu yapılmıştır. Adsorbentin karakteristik özellikleri ve yüzey yapısı SEM EDX, BET ve elementel analiz ile karakterize edilmiştir. Elde edilen aktif karbonun BET yüzey alanı 308.6 m2/g, toplam gözenek hacmi 0,13 cm3/g ve toplam mikro gözenek hacmi ise 0,09 cm3/g olarak bulunmuştur. Antibiyotik olarak seçilen penisilin G’nin 25-40-60oC de ve 3-5-8 pH değerlerinde, tetrasiklinin 30-40-60oC de ve 3-7-9 pH değerlerinde giderim çalışmaları yapılmıştır. Deneysel veriler Langmuir ve Freundlich izotermleri kullanılarak analiz ve korelasyon değerleri incelendiğinde Freundlich izotermi ile daha uyumlu olduğu bulunmuştur. Gerçekleştirilen adsorpsiyonunun fiziksel olarak adsorbe olduğu görülmüştür. Aktif karbonların antibiyotik gideriminde kullanılması kirliliğin azaltılmasında etkili olduğu belirlenmiştir.

Anahtar Kelimeler

• Adsorpsiyon
• Aktif karbon,
• antibiyotik
• sulu çözelti
• Yer Fıstığı Kabuğu

Kaynakça

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