title: Removal of sulfamethoxazole (SMX) and sulfapyridine (SPY) from aqueous solutions by biochars derived from anaerobically digested bagasse.
abstract: This study explored the sorption of sulfamethoxazole (SMX) and sulfapyridine (SPY) onto biochars produced from raw and anaerobically digested bagasse. Initial evaluation of six bagasse biochars showed that digested bagasse biochar prepared at 600 °C (DBG600) was the best adsorbent to remove SMX and SPY. Further laboratory batch sorption experiments showed that DBG600 adsorbed SMX and SPY from aqueous solution with maximum adsorption capacity of 54.38 and 8.60 mg g-1, respectively. Solution pH showed strong effect on the sorption ability of DBG600 to the two antibiotics, and the sorption decreased with increasing of solution pH. Experimental and model results suggested that adsorption of SMX and SPY onto DBG600 might be controlled by the π-π interaction.
authors.affiliation: School of Materials Science and Engineering, Beijing Key Laboratory of Environmental Science and Engineering, Beijing Institute of Technology, Beijing, 100081, China.|Department of Agricultural and Biological Engineering, University of Florida, Gainesville, FL, 32611, USA.
authors.forename: Ying
authors.initials: Y
authors.lastname: Yao
authors.affiliation: School of Materials Science and Engineering, Beijing Key Laboratory of Environmental Science and Engineering, Beijing Institute of Technology, Beijing, 100081, China.
authors.forename: Yan
authors.initials: Y
authors.lastname: Zhang
authors.affiliation: Department of Agricultural and Biological Engineering, University of Florida, Gainesville, FL, 32611, USA. bg55@ufl.edu.
authors.forename: Bin
authors.identifier: http://orcid.org/0000-0003-3769-0191
authors.initials: B
authors.lastname: Gao
authors.affiliation: School of Materials Science and Engineering, Beijing Key Laboratory of Environmental Science and Engineering, Beijing Institute of Technology, Beijing, 100081, China.
authors.forename: Renjie
authors.initials: R
authors.lastname: Chen
authors.affiliation: School of Materials Science and Engineering, Beijing Key Laboratory of Environmental Science and Engineering, Beijing Institute of Technology, Beijing, 100081, China.
authors.forename: Feng
authors.initials: F
authors.lastname: Wu
mesh_terms: D000327:Adsorption; D000693:Anaerobiosis; D000900:Anti-Bacterial Agents / Q000737:chemistry; D002482:Cellulose; D002606:Charcoal / Q000737:chemistry*; D013420:Sulfamethoxazole / Q000737:chemistry*; D013427:Sulfapyridine / Q000737:chemistry*; D014867:Water / Q000737:chemistry*; D014874:Water Pollutants, Chemical / Q000737:chemistry*
chemical_list: D000900:Anti-Bacterial Agents; D014874:Water Pollutants, Chemical; C540010:biochar; D014867:Water; D002606:Charcoal; D002482:Cellulose; C027433:bagasse; D013420:Sulfamethoxazole; D013427:Sulfapyridine
keywords: Adsorption; Anaerobically digested bagasse; Biochar; Sulfamethoxazole; Sulfapyridine