Adsorption of SO2 onto waste cork powder-derived activated carbons

Preparation of granular activated carbons from yellow mombin fruit stones for CO2 adsorption

“…YM KOH e YM was mixed with an aqueous KOH solution (85%) in a 1: 1 mass ratio (5 cm 3 deionized water per gram of KOH) and treated under reflux at 85 C for 4 h and dried in an oven for one day, at 110 C. After pyrolysis at 500 C for 2 h, the cooled sample was washed with HCl (0.1 mol L À1 ) to remove excess of base, and rinsed again with deionized water until reaching pH neutral (Atanes et al, 2012).…”

“…The physical activation of the carbonized sample (YM 500 ) was undertaken by gasification using a CO 2 , flow 50 mL min À1 , at 500 C for 2 h (Atanes et al, 2012). The resulting sample was named as YM CO2 .…”

Operational aspects of SO2 removal and microbial population in an integrated-bioreactor with two bioreaction zones

“…Several desulfurization techniques for effluent gases have been developed to control pollution generated by sulfur-containing compounds to meet emission standards. Some of these techniques include gas-phase conversion, liquid absorption, and solid adsorbent adsorption [1]. Despite the high removal efficiencies of these techniques, they require large amounts of additional energy to function as well as high capital, operation and maintenance costs.…”

Thermophilic biofilter for SO2 removal: Performance and microbial characteristics

“…These techniques include the gas-phase conversion of SO 2 , absorption of SO 2 in liquids, and adsorption of SO 2 onto solid adsorbents (Atanes et al, 2012). SO 2 and NO can be simultaneously absorbed by Fe II EDTA combined with a Na 2 SO 3 or urea solution.…”