The Using of Rsm on Removal of Methylene Blue from Aqueous Solutions by Grape Seed Tunceli-Elazığ as a Low- Cost and Eco Friendly Adsorbent

Abstract

Grape seeds are waste products of the wine and juice processes in big amounts. In this study, grape seeds were used in Methylene Blue MB removal in synthetic wastewater by transformation into active carbon. Optimization process was completed using RSM. Four different parameters could affect the removal in selected process were identified and maximum MB removal was achieved by optimization of these parameters. Central Composite Design CCD software was used to calculate the effects of each parameter on response/removal. Conducted empirical and statistical studies determined that the values for independent parameters that achieved the maximum response were; pH 3.7, contact time 55.5 minutes, absorbent dosage 1.4 g, and initial concentration of 160 mgL-1. Using these parameters, MB removal from synthetic wastewater was conducted at an approximate yield of 99% with active carbon Vitis vinifera seed use. Furthermore, it was identified that the achieved model supported the conducted study by 82%.

Keywords

• Active carbon,dye,metyhlene blue,RSM,Vitis vinifera L. seed

Ucuz ve Çevre Dostu Bir Adsorbent Olan Üzüm Çekirdeği ile Metilen Mavisinin Sulu Çözeltilerden Gideriminde RSM Kullanımı

Abstract

Ucuz ve atık olarak değerlendirilen üzüm çekirdeği insanların gıda olarak kullandığı üzümden elde edilen ve bol miktarda bulunan bir atıktır. Bu atık aktif karbon haline getirilerek bir boyar madde olan Metilen Mavisinin MM sentetik atık sulardaki gideriminde kullanılmıştır. Optimizasyon süreci Response Surface Metodology RSM kullanılarak tamamlanmıştır. Çalışılan süreçte giderimi etkileyecek dört farklı parametre seçilmiş ve bu parametreler optimize edilerek maksimum Metilen mavisi giderimi bulunmuştur. Bu parametrelerin herbirinin pH, zaman dakika , adsorbent miktarı g ve başlangıç derişimi mgL-1 cevap üzerindeki etkileri Central Compozite Design CCD programı kullanılarak hesaplanmıştır. Yapılan deneysel çalışmalar sonucunda quadratik bir model bulunmuş ve üç boyutlu grafikler elde edilerek Anova istatiksel verileri hesaplanmıştır. Gerçekleştirilen deneysel ve istatiksel çalışmalar sonucunda bağımsız parametrelerin maksimum değerleri pH 3.7, süre 55.5 dakika, adsorbent miktarı 1.4 gram ve başlangıç derişimi 160 mgL-1 olarak bulunmuştur. Bu veriler kullanılarak aktif karbon Vitis vinifera L. ile sentetik atık sulardan yaklaşık %99 verimle Metilen mavisi giderimi sağlanmıştır. Aynı zamanda bulunan modelin yapılan çalışmayı %82 desteklediği gözlenmiştir

Keywords

• Aktif Karbon,boyar madde,metilen mavisi,RSM,Vitis vinifera L. çekirdekleri

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