Sulu çözeltilerden kadmiyum iyonunun dolgulu kolonlarda çeşitli adsorbentler kullanarak giderilmesi
Küçük Resim Yok
Tarih
2004
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info:eu-repo/semantics/openAccess
Özet
Endüstriyel faaliyetlerin gelişmesi neticesinde, yüzey sularının ağır metal kirliliği artmıştır. Özellikle biyolojik arıtım sürecinde ağır metaller, özellikle mikroorganizmalar üzerinde öldürücü etki göstermektedir. Ayrıca gerek tarım amacıyla kullanılan sularla sulanan bitkilerde, gerekse sucul canlılarda biriken ağır metaller, onları kullanan insanlarda da birikime sebep olmaktadır. Bu sebeple gerek biyolojik arıtma yapılacak atıksu, gerekse alıcı ortama bırakılacak atık suların ağır metallerden arındırılması önem kazanmaktadır. Bu çalışmada sulardaki kadmiyumun dolgulu kolonlarda adsorpsiyon yoluyla giderilmesi araştırıldı. Adsorbent olarak; diatomit, sepiyolit, at kestanesi ve meşe palamudu kullanıldı Bu çalışma sonucunda at kestanesi, meşe palamudu, diatomit ve bej sepiolitin l gramı başına maksimum adsorpladığı kadmiyum miktarı sırasıyla 5.84 mg, 11,5 mg, 4,99 mg ve 5,42 olduğu tespit edilmiştir.
By the development of industrial activities, there has been an increase of heavy metal pollution in surface waters. During biological treatment processes, the heavy metals- have high toxic effects especially on the microorganisms. Apparently, the heavy metals accumulating within the plants watered using agriculture waters, and within the aquatic living things cause an accumulation in human beings. Because of this reason, the treatment of heavy metals from wastewaters that will under go biological treatment as well as the purifications of effluent discharges to the environment gains importance. The removal of cadmium from waters by adsorption in packed columns was investigated in this study, adsorption capacities of horse chessnut, valonia acron, diatomite, beige sepiolite were used. It was found that the maximum amount of cadmium adsorbed by 1 gram of horse chessnut, valonia acron, diatomite, beige sepiolites were 5.84 mg, 11,5 mg, 4,99 mg and 5,42 respectively.
By the development of industrial activities, there has been an increase of heavy metal pollution in surface waters. During biological treatment processes, the heavy metals- have high toxic effects especially on the microorganisms. Apparently, the heavy metals accumulating within the plants watered using agriculture waters, and within the aquatic living things cause an accumulation in human beings. Because of this reason, the treatment of heavy metals from wastewaters that will under go biological treatment as well as the purifications of effluent discharges to the environment gains importance. The removal of cadmium from waters by adsorption in packed columns was investigated in this study, adsorption capacities of horse chessnut, valonia acron, diatomite, beige sepiolite were used. It was found that the maximum amount of cadmium adsorbed by 1 gram of horse chessnut, valonia acron, diatomite, beige sepiolites were 5.84 mg, 11,5 mg, 4,99 mg and 5,42 respectively.
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7
