Paunka Vassileva

Investigation on natural and pretreated Bulgarian clinoptilolite for ammonium ions removal from aqueous solutions

Paunka Vassileva, Dimitrinka Voikova · Journal of Hazardous Materials · 2009 · 129 citations

Solvent Extraction, Purification Method, Chemical Engineering +9

Removal of ammonium ions from aqueous solutions with coal-based activated carbons modified by oxidation

Paunka Vassileva, Pavleta Tzvetkova, R. Nickolov · Fuel · 2008 · 77 citations

Chemical Engineering, Clean Coal Technology, Engineering +11

XPS determination of the binding energies of phosphorus and nitrogen in phosphazenes

Paunka Vassileva, V. Krastev, L. Lakov et al. · Journal of Materials Science · 2004 · 47 citations

Biochemistry, Natural Sciences, Physical Chemistry +4

Adsorption of Ag+ ions on hydrolyzed lignocellulosic materials based on willow, paulownia, wheat straw and maize stalks

Paunka Vassileva, Temenuzhka Radoykova, Albena Detcheva et al. · International Journal of Environmental Science and Technology · 2016 · 37 citations

Chemical Engineering, Ag+ Ions, Engineering +8

Modified silica gel with 5-amino-1,3,4-thiadiazole-2-thiol for heavy metal ions removal

Pavleta Tzvetkova, Paunka Vassileva, R. Nickolov · Journal of Porous Materials · 2009 · 34 citations

Molecular Sieve, Inorganic Chemistry, Chemical Engineering +12