Humik asidin sulu çözeltilerden polimer içerikli membranlar ile ekstraksiyonu
Bu çalışmada, humik asit sodyum humat çözeltisinden polimer içerikli membranlar (PIMs) kullanılarak ekstrakte edilmektedir. Sodyum humat, Kahramanmaraş Afşin Elbistan Bölgesindeki linyitlerden elde edilmiştir. PIMs; polimer selüloz triasetat, taşıyıcı trikaprilmetilamonyum klorür, modifiyer tributil fosfat ve plastikleştirici 2- nitrofenil pentil eter kullanılarak hazırlanmıştır. Polimerik film 2 cam hücre arasına yerleştirilmiştir. Sıyırma çözeltisi tipi, sıyırma çözeltisi konsantrasyonu, besleme ve sıyırma çözeltisi karıştırma hızı parametrelerinin ekstraksiyona etkisi deneysel olarak incelenmiştir. Sıyırma fazına yaklaşık %25 humik asit geçirilmiş ve UV-Vis spektrofotometresiyle ölçülmüştür.
Extraction of humic acid from an aqueous solution with polymer inclusion membranes
In this study, humic acid was extracted from the solution of sodium humate by using polymer inclusion membranes (PIMs). Sodium humate was obtained by treating lignite from Kahramanmaraş Afşin-Elbistan Region. PIMs were prepared by using cellulose triacetate as polymer, a carrier, tricaprylmethylammonium chloride, modifier tri-butyl phosphate and plasticizer 2- nitro phenyl pentyl ether. The polymeric film was placed between two glass cells. The effect of the stripping solution type, stripping solution concentration and feed and stripping solution mixing rate parameters were experimentally investigated. About 25% humic acid was passed to the stripping phase and measured by UV-Vis spectrophotometer.
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