Using Biochar from Gypsophila arrostii var nebulosa for Alizarin Yellow GG Removal from Aqueous Solutions

Year 2023, , 582 - 589, 28.06.2023

Okan Bayram , Emel Moral , Fethiye Göde

https://doi.org/10.35414/akufemubid.1111666

Abstract

Dyes, which are widely used in the industrial field, cause water pollution. Removal of pollution has gained importance for the environment and living things. In this study, biochar obtained from the roots of Gypsophila arrostii var nebulosa (GAVN) plant by adsorption method was used for the removal of alizarin yellow GG (AS), which is an anionic dye and has harmful effects. In the obtained results, it was found that the adsorption process reached saturation in 60 minutes. The effects of adsorbent amount, pH, temperature, time and AS concentration changes on adsorption were investigated. The maximum adsorption capacity was found to be 4.097 mg/g. It was found that the adsorption process was suitable for the Langmuir adsorption isotherm (R2=0.995), took place in the pseudo-second order (R2=0.981) and had negative ΔG° values. In line with the results obtained, it was concluded that GAVN, which was turned into biochar, could be used for AS removal.

Keywords

Gypsophila a.v.n, Adsorption, Alizarin yellow GG, Langmuir, Freundlich

Sulu Çözeltilerden Alizarin Sarısı GG Gideriminde Gypsophila arrostii var nebulosa’dan Elde Edilen Biyökömürün Kullanılması

Abstract

Endüstriyel alanda yaygın olarak kullanılan boyar maddeler su kirliliğine sebep olmaktadır. Kirliliğin giderilmesi çevre ve canlılar için önem kazanmıştır. Bu çalışmada, anyonik bir boyar madde olan ve zararlı etkileri bulunan alizarin sarısı GG (AS) giderimi için adsorpsiyon yöntemi ile Gypsophila arrostii var nebulosa (GAVN) bitkisinin köklerinden elde edilen biyokömür kullanılmıştır. Elde edilen sonuçlarda adsorpsiyon işleminin 60 dakikada doygunluğa ulaştığı bulunmuştur. Adsorban miktarı, pH, sıcaklık, zaman ve AS konsantrasyon değişiminin adsorpsiyon üzerine etkileri incelenmiştir. Maksimum adsorpsiyon kapasitesi 4.097 mg/g bulunmuştur. Adsorpsiyon prosesinin Langmuir adsorpsiyon izotermine (R2=0.995) uygun olduğu, yalancı ikinci dereceden gerçekleştiği (R2=0.981) ve negatif ΔG° değerlerine sahip olduğu bulunmuştur. Elde edilen sonuçlar doğrultusunda biyokömür haline getirilen GAVN’ın AS giderimi için kullanılabileceği sonucuna ulaşılmıştır.

Keywords

Gypsophila a.v.n, Adsorpsiyon, Alizarin Sarısı GG, Langmuir, Freundlich

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