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Comparison of Adsorption Performance of Biochar Derived from Urban Biowaste Materials for Removal of Heavy Metals.
Chaudhary, Hina; Dinakaran, J; Notup, Tenzen; Vikram, Krati; Rao, K S.
Afiliación
  • Chaudhary H; Natural Resource Management Laboratory, Department of Botany, University of Delhi, Delhi, 110007, India. hinac4@gmail.com.
  • Dinakaran J; Department of Botany, Dyal Singh College, University of Delhi, Delhi, 110003, India.
  • Notup T; Natural Resource Management Laboratory, Department of Botany, University of Delhi, Delhi, 110007, India.
  • Vikram K; Natural Resource Management Laboratory, Department of Botany, University of Delhi, Delhi, 110007, India.
  • Rao KS; Natural Resource Management Laboratory, Department of Botany, University of Delhi, Delhi, 110007, India. rao.srkottapalli@gmail.com.
Environ Manage ; 73(2): 408-424, 2024 Feb.
Article en En | MEDLINE | ID: mdl-37537396
This study investigated the adsorption performance of biochar produced from different types of urban biowaste material viz., sugarcane bagasse (SB), brinjal stem (BS), and citrus peel (CP) for removal of heavy metal ions (Pb, Cu, Cr, and Cd) from aqueous solution. The effects of biowaste material, dosage of biochar, solution pH, and initial concentration of heavy metal ions and isotherm models were performed to understand the possible adsorption mechanisms. The results showed that the biochar derived from BS and SB removes Cu (99.94%), Cr (99.57%), and Cd (99.77%) whereas biochar derived from CP removes Pb (99.59%) and Cu (99.90%) more efficiently from the aqueous solution. Biochar derived from BS showed maximum adsorption capacity for Cu (246.31 mg g-1), Pb (183.15 mg g-1), and Cr (71.89 mg g-1) while the biochar derived from CP showed highest for Cd (15.46 mg g-1). Moreover, biochar derived from BS and SB has more polar functional groups and less hydrophobicity than the biochar derived from CP. This study reveals that solution pH and biochar doses play a major role in removal of heavy metal ions from aqueous solution. The results of Langmuir model fitted well for Pb and Cu while the Freundlich model for Cr and Cd. Our study concludes that the biochar derived from different biowaste materials adsorbs heavy metal ions majorly through surface complexation and precipitation processes. The results of this study will be very useful in selecting the effective urban biowaste material for making biochar for heavy metal removal from the aqueous environment.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Contaminantes Químicos del Agua / Metales Pesados / Saccharum Idioma: En Revista: Environ Manage Año: 2024 Tipo del documento: Article País de afiliación: India Pais de publicación: Estados Unidos
Texto completo
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Imprimir
XML
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Contaminantes Químicos del Agua / Metales Pesados / Saccharum Idioma: En Revista: Environ Manage Año: 2024 Tipo del documento: Article País de afiliación: India Pais de publicación: Estados Unidos