Use of synthetic inorganic ion exchangers in strontium removal

Yıl 2022, Cilt: 12 Sayı: 3, 964 - 981, 15.07.2022

Süleyman İnan

https://doi.org/10.17714/gumusfenbil.1011693

Öz

Strontium-90 is the most dangerous radioactive isotope of strontium, which is formed during the operation of nuclear reactors. It can also spread to the environment due to fallout from nuclear accidents and nuclear weapons tests. Removal of hazardous radionuclides and safe management of radioactive waste is a vital necessity. Ion exchange has been one of the most used methods in the management of liquid radioactive waste. Inorganic ion exchangers stand out for their thermal, chemical and radiation resistance. They show selectivity for certain cations. This review focused on removal of 90Sr by synthetic inorganic ion exchangers such as zeolites, titanates, titanosilicates, other acid salts, hydrous oxides and metal sulfides. Overall, more than 100 publications are reviewed and detailed data on strontium removal using inorganic ion exchangers are presented.

Anahtar Kelimeler

Inorganic ion exchangers, Radioactive waste, Selectivity, Sorption, Strontium

Stronsiyum gideriminde sentetik inorganik iyon değiştiricilerin kullanımı

Öz

Stronsiyum-90, nükleer reaktörlerin işletilmesi sırasında oluşan stronsiyumun en tehlikeli radyoaktif izotopudur. Nükleer kazalardan ve nükleer silah testlerinden kaynaklanan serpinti nedeniyle de çevreye yayılabilir. Tehlikeli radyonüklidlerin uzaklaştırılması ve radyoaktif atıkların güvenli yönetimi hayati bir zorunluluktur. İyon değişimi, sıvı radyoaktif atıkların yönetiminde en çok kullanılan yöntemlerden biri olmuştur. İnorganik iyon değiştiriciler termal, kimyasal ve radyasyon direnci ile öne çıkar. Belirli katyonlar için seçicilik gösterirler. Bu derleme, 90Sr'nin zeolitler, titanatlar, titanosilikatlar, diğer asit tuzları, hidrate oksitler ve metal sülfürler gibi sentetik inorganik iyon değiştiriciler ile uzaklaştırılmasına odaklanmıştır. Genel olarak, 100'den fazla yayın gözden geçirilmiş ve inorganik iyon değiştiriciler kullanılarak stronsiyum giderimi hakkında ayrıntılı veriler sunulmuştur.

Anahtar Kelimeler

İnorganik iyon değiştiriciler, Radyoaktif atık, Seçicilik, Sorpsiyon, Stronsiyum

Kaynakça

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