| Effect Of Actıvatıon Of Some Natural Clay Mınerals On Treatment Capacıty Of Heavy Metal Ions
Since metals have toxic properties for species living in the water and in other habitats they constitute a vital role in enviromental engineering. Even though some metals are micronutrients that is necessary for growth of livings by being exist in active regions of biological enzimes in low concentrations, at the same time they can have toxic effects in high concentrations. Hence, metals are one of the parameters that should be observed in biological waste water treatment systems, in drinking waters and in places where the natural water habitat needs to be preserved.
Several adsorbents are used in order to remove heavy metals by means of adsorption. The minerals, zeolite and bentonite, are natural adsorbent materials, which have rich resources in Turkey. Main reasons why zeolite and bentonite are used as adsorbents in heavy metal adsorption are such that they are available in the nature, economic and most importantly they are suitable for adsorption mechanisms due to their nature.
In this study, bentonite and zeolite are used in order to remove zinc and copper ions. The parameters analyzed in this study are time, pH and various concentrations of zeolite and bentonite. The duration for the experiments is set to be 60 minutes and pH is set to be between 5 and 6. Zeolite and bentonite are activated by using several chemicals to determine their treatment capacity. Zeolite and bentonite are activated by using NaOH for copper ion and natural form for zinc ion. In both cases, it was observed that bentonite treats the copper better than zeolite does. In order to recycle zeolite and bentonite, desorption experiments are performed and we found out that zeolite is 40-55 % recyclable and bentonite is 80-82% recyclable.
ÖZDEMİR Hüseyin ,
Danışman : Yrd.Doç.Dr.Göksel DEMİR
Anabilim Dalı : Çevre Mühendisliği
Programı (Varsa) : -
Mezuniyet Yılı : 2006
Tez Savunma Jürisi : Yrd.Doç.Dr.Göksel DEMİR
Prof.Dr.Hulusi BARLAS
Prof.Dr.Semiha ARAYICI
Prof.Dr.Osman NURİ UÇAN
Doç.Dr.Neşe TÜFEKÇİ
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