Production, characterization and adsorption studies of bamboo-based biochar/montmorillonite composite for nitrate removal

Production, characterization and adsorption studies of bamboo-based biochar/montmorillonite composite for nitrate removal

Copyright © 2018 Elsevier Ltd. All rights reserved.

Bibliographische Detailangaben
Veröffentlicht in:Waste management (New York, N.Y.). - 1999. - 79(2018) vom: 01. Sept., Seite 385-394
1. Verfasser: Viglašová, Eva (VerfasserIn)
Weitere Verfasser: Galamboš, Michal, Danková, Zuzana, Krivosudský, Lukáš, Lengauer, Christian L, Hood-Nowotny, Rebecca, Soja, Gerhard, Rompel, Annette, Matík, Marek, Briančin, Jaroslav
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2018
Zugriff auf das übergeordnete Werk:Waste management (New York, N.Y.)
Schlagworte:Journal Article Biochar Characterization Composite Montmorillonite Nitrate Nitrates Water Pollutants, Chemical biochar Bentonite mehr... 1302-78-9 Charcoal 16291-96-6
Beschreibung
Zusammenfassung:Copyright © 2018 Elsevier Ltd. All rights reserved.
Biochar is a promising immobilization tool for various contaminants in liquid wastes, aqueous solutions and soils. To further improve the sorption characteristics, a biochar/montmorillonite composite was produced and synthesized in an experimental pyrolysis reactor, using bamboo as biomass feedstock. The composite was characterized by physico-chemical and structural methods (FTIR, SEM, SEM/EDX, SSA, Low temperature nitrogen adsorption method). Based on these methods, the successful preparation of a bamboo based biochar/montmorillonite composite preparation has been demonstrated. The particles of montmorillonite were distributed across the biochar surface. The adsorption studies for removal nitrates from aqueous solutions were investigated by a batch method at laboratory temperatures. The experimental data were fitted by three adsorption models (Langmuir, Freundlich and DR; R2 > 0.93). The maximum adsorption capacity achieved by biochar at pH 4, was about 5 mg g-1 and by biochar/montmorillonite composite 9 mg g-1. The results suggest that the bamboo-based biochar/montmorillonite composite can be used effectively in the treatment of industrial effluents or waste water containing anionic pollutants such as nitrates
Beschreibung:Date Completed 12.09.2019
Date Revised 12.09.2019
published: Print-Electronic
Citation Status MEDLINE
ISSN:1879-2456
DOI:10.1016/j.wasman.2018.08.005