Küspe (Nigella sativa) Kullanılarak Sulu Çözeltilerden Adsorpsiyon ile Boyar Madde Giderimi

Dünya’da su kirliliği en önemli problemlerden birisidir. Bu amaçla atık suların çevreye deşarj edilmeden önce arıtılması gerekmektedir. Adsorpsiyonun sulu ortamda kirleticilerin arıtımı için iyi bir proses olduğu bilinmektedir. Bu çalışmada sulu çözeltilerden Malachite green’in (MG) küspe ile (Nigella sativa) giderimi araştırılmıştır. MG’nin adsorpsiyonu üzerine pH, başlangıç boya konsantrasyonu ve zamanın etkisi kesikli bir sistemde çalışılmıştır. Elde edilen veriler Langmuir ve Freundlich İzoterm Modellerine uygulanmıştır. Langmuir izoterm modelinin (R2=0,9996) küspe (Nigella sativa) kullanılarak MG’nin adsorpsiyonla gideriminde en iyi uyum sağladığı görülmüştür. Ayrıca adsorpsiyon kinetiği de hesaplanmıştır. Küspe yüzey alanı ile boya arasındaki etkileşim Taramalı elektron mikroskobu ile belirlenmiştir. Çalışma, Nigella sativa küspesinin MG’nin gideriminde maliyetsiz ve güçlü bir adsorban olduğunu vurgulamıştır.

Dye Removal by Adsorption from Aqueous Solution Using Pulp (Nigella sativa)

In the world, water pollution is one of the most important problems. For this purpose, it is necessary that waste water must be treatment before discharge to the environment. It is known that adsorption is the well process for treatment of pollutant in an aqueous environment. In this study, the removal of Malachite green (MG) from aqueous solution using pulp (Nigella sativa) was investigated. Effects of pH, initial dye concentration and time on adsorption of MG were studied in a batch system. The available data were applied to Langmuir and Freundlich isotherms. The Langmuir model is the best fitted (R2=0.999) for the adsorption of MG from using pulp (Nigella sativa). Moreover, kinetic of adsorption were also calculated. The interaction between the pulp surface area and the dye was determined by scanning electron microscopy. The study emphasized that the Nigella sativa pulp is a no-cost and powerful adsorbent for the removal of MG.

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