Uranyum serisi elementler ve diger bazı ağır metallerin sulu ortamlardan polimerik adsorbanlarla soğurumunun incelenmesi
Başlık çevirisi mevcut değil.
- Tez No: 346883
- Danışmanlar: PROF. DR. RAİF GÜLER
- Tez Türü: Yüksek Lisans
- Konular: Kimya, Chemistry
- Anahtar Kelimeler: Belirtilmemiş.
- Yıl: 2003
- Dil: Türkçe
- Üniversite: Cumhuriyet Üniversitesi
- Enstitü: Fen Bilimleri Enstitüsü
- Ana Bilim Dalı: Kimya Ana Bilim Dalı
- Bilim Dalı: Belirtilmemiş.
- Sayfa Sayısı: Belirtilmemiş.
Özet
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Özet (Çeviri)
In this study; adsorption of uranium and thorium series elements CU, Ac, Pb, Bi and Tl) from the solution of a radioactive rock sample provided from fluorite area at the north-west of Kuluncak-Malatya-TURKEY and also adsorption of uraniurn and lead from the aqueous media by a new polymeric adsorbent was investigated. The adsorbent is prepared by amidoximation (lPNa) of Interpenetrating Polyrner Networks (IPNs) synthesized by garnma irradiation of polyethylene glycolacrylonitrile solution. The effects of adsorbent mass, particle shape and size, pH and solution concentration to the adsorption of these elements were determined by UV -visible spectrofotometric and garnma spectrometric methods. The optimum particle size were determined 0.6-1.0 mm for all experiments. The optimum mass of the adsorbent were determined as 25 mg for the rock and lead solution and 10 mg for the uranyl solution. The optimum concentrations and pH value s were determined for the rock, lead and uranyl solutions as 1.0-200 fgIL, 2.5- 3; 14 mg Pb2+ IL, 4-5 and 10 g UO;+ IL, 3 respectively. The maximum adsorption value s of each elements obtained from the adsorption isotherms (L, or H type according to Giles) were found as 75%, 43%, 95%, 38% for Ac, Pb, Bi and Tl for the adsorption from the radioactive rock solution; ~804 mg U/g IPNa for uranium from aqueous uranyl nitrate solution; ~450 mg U/g IPNa for uranium from uranium added radioactive rock solution; ~ 7 mg Pb/g IPNa for Icad from aqueous lead nitrat e solution. The adsorption sequence of the elements was found as Ac>Pb>Bi>TI from the radioactive rock solution. lt was concluded that the polymeric adsorbent could be effectively used for U, Ac, Pb, Bi and Tl adsorption from radioactive rock solution and also for the uranium and lead adsorption from aqueous salt solutions.
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