Abstract：
:The present research work deals with the production of activated carbons by chemical activation and pyrolysis of sewage sludges. The adsorbent properties of these sewage sludges based activated carbons were studied by liquid-phase adsorption tests. Dyes removal from colored wastewater being a possible application for sludge based adsorbents, methylene blue and saphranine removing from solution was studied. Pure and binary adsorption assays were performed in batch and fixed bed systems. In all cases studied, the adsorbents produced from sewage sludges were able to adsorb both the compounds considered here. Nevertheless, time required for reaching equilibrium, adsorptive capacity and fixed bed characteristic parameters were different for these two compounds. Methylene blue adsorption occurred faster than that of saphranine, and it was preferably adsorbed when treating binary solutions. It could be concluded that the sewage sludge-based activated carbons may be promising for dyes removal from aqueous streams.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Rozada F,Calvo LF,García AI,Martín-Villacorta J,Otero Mdoi
10.1016/s0960-8524(02)00243-2subject
Has Abstractpub_date
2003-05-01 00:00:00pages
221-30issue
3eissn
0960-8524issn
1873-2976pii
S0960852402002432journal_volume
87pub_type
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