Equilibrium adsorption of hydrogen sulfide onto CuO and ZnO

Synthesis and characterization of hybrid materials containing iron oxide for removal of sulfides from water

“…Poulton et al, using a bed of zeolite pellets coated with ferrihydrite (500 g of zeolite containing 2.0 g Fe(III)), obtained 160 dm 3 of purified water with high efficiency of sulfide removal from aqueous solutions (87%, at initial concentration of 1.44 mg S 2-/dm 3 ), simultaneously with insignificant loss in efficiency even after prolonged process duration [26]. Although hybrid polymer obtained in the present study contained only 30% Fe, its sulfide removal capacity reached a value of 60 mg/g, which is comparable with the adsorption capacity of pure CuO and ZnO particles (respectively 64.0 and 28.3 mg S 2-/g) [33].…”

H2S and Siloxane D5 Removal from Anaerobic Digestion Gas by Adsorption

“…5 was performed in the same way and the Dräger tube measurements were taken with half an hour interval and the minimum and maximum adsorption capacities were found 48 and 49.9 mg/g. Haimour et al [5] also found adsorption capacity to be 45 mg/g at 35ºC. Experiment no.…”

Characterization of adsorption removal of hydrogen sulfide by waste biocover soil, an alternative landfill cover

“…It is mainly H 2 S in acidic solution and no H 2 S exists when pH value is higher than 9; when pH is between 8 and 9, HS − is predominant and no S 2− exists in solution with pH under 8 [23,24]. Under acidic conditions, the adsorption of H 2 S on waste biocover soil is mainly in the form of H 2 S, which escapes easily from the surface.…”