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Utilization of Biomass Waste at Water Treatment

Author

Listed:
  • Isabel Pestana da Paixão Cansado

    (MED—Mediterranean Institute for Agriculture, Environment and Development & CHANGE—Global Change and Sustainability Institute and Departamento de Química e Bioquímica, Escola de Ciências e Tecnologia, Universidade de Évora, Rua Romão Ramalho n° 59, 7000-671 Évora, Portugal)

  • Pedro Francisco Geraldo

    (Faculdade de Ciências e Tecnologia, Campus de Murrópuè, Quelimane, Universidade Licungo, Estrada Nacional 642, Beira 2100, Mozambique)

  • Paulo Alexandre Mira Mourão

    (MED—Mediterranean Institute for Agriculture, Environment and Development & CHANGE—Global Change and Sustainability Institute and Departamento de Química e Bioquímica, Escola de Ciências e Tecnologia, Universidade de Évora, Rua Romão Ramalho n° 59, 7000-671 Évora, Portugal)

  • José Eduardo Castanheiro

    (MED—Mediterranean Institute for Agriculture, Environment and Development & CHANGE—Global Change and Sustainability Institute and Departamento de Química e Bioquímica, Escola de Ciências e Tecnologia, Universidade de Évora, Rua Romão Ramalho n° 59, 7000-671 Évora, Portugal)

  • Elisabete Palma Carreiro

    (LAQV-REQUIMTE, Universidade de Évora, Rua Romão Ramalho n° 59, 7005-671 Évora, Portugal)

  • Suhas

    (Department of Chemistry, Gurukula Kangri Deemed to be University, Haridwar 249404, India)

Abstract

This work presents some preliminary results on the direct use of untreated biomass from agricultural activities as adsorbents for water treatment. Waste was also used to produce activated carbons (ACs) by chemical activation with KOH. The efficacy of agricultural waste such as stubble, sawdust from Teak ( Tectona Grandis ), fibers from Imbondeiro ( Adansonia digitata L.), bamboo flowers, and other regional plants were tested on methylene blue (MB) removal from the aqueous phase. Adsorption studies were conducted in a batch system and the influence of kinetics, pH, and temperature was evaluated. The adsorption performance of the natural adsorbents was significantly high concerning MB. In particular, Imbondeiro presented a maximum removal capacity of 188.3 mg per gram. This amount was similar to or even higher than the values obtained on ACs produced by their predecessors at 873 K. The studies were finished by constructing slow filters containing natural adsorbents or ACs. The maximum amounts of MB removed on a continuous flux were lower than those obtained for a diversity of untreated biomass types on a batch system. However, these amounts were comparable to the published results obtained on a diversity of untreated biomasses in batch mode.

Suggested Citation

  • Isabel Pestana da Paixão Cansado & Pedro Francisco Geraldo & Paulo Alexandre Mira Mourão & José Eduardo Castanheiro & Elisabete Palma Carreiro & Suhas, 2024. "Utilization of Biomass Waste at Water Treatment," Resources, MDPI, vol. 13(3), pages 1-15, March.
    • Handle: RePEc:gam:jresou:v:13:y:2024:i:3:p:37-:d:1353698
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    References listed on IDEAS

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    1. Thaisa Caroline Andrade Siqueira & Isabella Zanette da Silva & Andressa Jenifer Rubio & Rosângela Bergamasco & Francielli Gasparotto & Edneia Aparecida de Souza Paccola & Natália Ueda Yamaguchi, 2020. "Sugarcane Bagasse as an Efficient Biosorbent for Methylene Blue Removal: Kinetics, Isotherms and Thermodynamics," IJERPH, MDPI, vol. 17(2), pages 1-13, January.
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