Przemysl Chemiczny, Vol.89, No.4, 529-533, 2010
Studies on removal of heavy metals and ammonium ions from sedimentary waters from municipal sewage-treatment plants with natural inorganic sorbents
Bentonite, clinoptilolite and palygorskite sorbents were used for removal Zn, Cu, Ni, Pb and NH(4) ions from aqsolns, in municipal sewage treatment plants at 21 degrees C and varying contact time (up to 3 h), to det. the adsorption isotherms. Bentonite was the most active sorbent. After 30 min, 67.5%, 71.1%, 63.6%, 97.6% and 32% of resp. ions were removed.