Konstantinos Kavallieratos

Reprocessing during the cold war era for weapons production has led to the accumulation of alkaline high-level waste (HLW), stored mainly at the Savannah River (SRS) and Hanford DOE Sites…

Mercury (Hg) separation and sensing is of significance due to Hg(II) environmental mobility and toxicity. Furthermore, the use of Hg in nuclear applications has resulted to its accumulation in several DOE sites, such as in Oak Ridge and Savannah River reservations…

The coordination chemistry of a family of tripodal tris-(pyrazolyl) ligands with trivalent lanthanides was investigated to determine their potential application as extractants and sensors of An(III) from alkaline aqueous media…

The cold war era reprocessing of nuclear fuel via the PUREX process for plutonium production has led to the generation of large volumes of caustic high-level waste (HLW) stored in underground tanks at the Savannah River Site (SRS) and the Hanford Site (HS) in the US…

The Hanford and Savannah River US DOE sites contain the majority of high-level waste (HLW) in the US, with about 100 MGal in volume and combined activity of over 400 MCi…

In this study, four tris-dipicolinamide (1-4), and two tris-dithiopicolinamide (5-6), ligands derived from tris(2-aminoethyl)amine (tren) were synthesized, characterized, and reacted with several Ln(III), including La(III), Eu(III), and Lu(III)…

In this study, four tris-dipicolinamide (1-4), and two tris-dithiopicolinamide (5-6), ligands derived from tris(2-aminoethyl)amine (tren) were synthesized, characterized, and reacted with several Ln(III), including La(III), Eu(III), and Lu(III)…

Despite recent advances, effective actinide (An) -lanthanide (Ln) separation in used nuclear fuel (UNF) by solvent extraction remains a challenge…

Mercury is a toxic and bioaccumulative chemical of global concern which poses serious health risks to the environment and biota. During the Cold War, the Savannah River Site (SRS) generated HLW due to reprocessing of used nuclear fuel (UNF) for weapons production…

As part of an effort to develop a combined Cs and actinide (An) extraction process for Caustic High-Level Waste (HLW) for improvement of the Next-Generation Caustic Side Solvent Extraction (NG-CSSX) process, our group has reported _o_-phenylenediamine-derived sulfonamide (DSA) and _o_-(sulfonamido)…

As a result of nuclear weapons production during the cold war, large amounts of alkaline High-Level Waste (HLW) have been generated and stored mainly at Savannah River (SRS) and Hanford Sites…

The separation of f-elements from alkaline high-level nuclear waste remains a significant challenge due to the need to reduce waste volume and mobility. Fluorescence sensing offers a promising approach for monitoring these elements during extraction…