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Production, characterization and application of activated carbon from brewer’s ...
Mussatto, Solange I.; Fernandes, Marcela; Rocha, George J. M.; Órfão, José J. M.; Teixeira, J. A.; Roberto, Inês ConceiçãoDifferent types of activated carbon were prepared by chemical activation of brewer’s spent grain (BSG) lignin using H3PO4 at various acid/lignin ratios (1, 2, or 3 g/g) and carbonization temperatures (300, 450, or 600 °C), according to a 22 full-factorial design. The resulting materials were characterized with regard to their surface area, pore volume, and pore size distribution, and used for detoxification of ...
Activated carbon production from brewer’s spent grain lignin
Mussatto, Solange I.; Fernandes, Marcela; Rocha, George J. M.; Orfão, J. J. M.; Teixeira, J. A.; Roberto, Inês ConceiçãoActivated carbons are adsorbents that are industrially used in multiple processes for product separation and purification, and for the treatment of liquid and gaseous effluents. Despite its frequent use in the water and waste industries, activated carbons remain an expensive material. In view of the high cost and the tedious procedures for the preparation and regeneration of activated carbons, there is a contin...
Hydrogen peroxide bleaching of cellulose pulps obtained from brewer’s spent grain
Mussatto, Solange I.; Rocha, George J. M.; Roberto, Inês ConceiçãoBrewer’s spent grain (BSG) was evaluated for bleached pulp production. Two cellulose pulps with different chemical compositionswere produced by soda pulping: one from the original raw material and the other from material pretreated by dilute acid. Both of them were bleached by a totally chlorine-free sequence performed in three stages, using 5% hydrogen peroxide in the two initial, and a 0.25 NNaOHsolution in t...
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