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Production of water purification filtering membranes from agro-industrial and urban waste
- Authors
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Gledson Ferreira de Almeida
Universidade Federal do Espírito Santo, CEUNES - Centro Universitário Norte do Espírito Santo.
Author
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André Cardoso da Silva
EEEFM Nestor Gomes
Author
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Dhébora Verginio Wandermurem
EEEFM Nestor Gomes
Author
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Heloisa Zanelato Rodrigues
EEEFM Nestor Gomes
Author
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Iandra Rocha Bernini
EEEFM Nestor Gomes
Author
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Louisy Scamparle dos Santos
EEEFM Nestor Gomes
Author
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Leandro Neres Maciel
EEEFM Nestor Gomes
Author
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Carla da Silva Meireles
Universidade Federal do Espírito Santo, CEUNES - Centro Universitário Norte do Espírito Santo.
Author
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- Keywords:
- Coffee Husk, Cellulose, Polystyrene
- Abstract
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Coffee processing is an important economic activity that generates a significant amount of waste, such as the husk. On the other hand, the high consumption and improper disposal of plastics, like disposable cups, also lead to significant environmental pollution problems. The interest in materials of industrial importance derived from renewable raw materials and the reuse of discarded materials is growing due to environmental concerns. The goal of this project, carried out with 2nd-year students at a state school as part of a Junior Scientific Initiation Program (PIC Jr), is the development of cellulose acetate/polystyrene (CA/PS) filtering membranes for water purification. Cellulose acetate was obtained from coffee husk cellulose, and polystyrene was sourced from discarded plastic cups. The results showed that the cellulose extraction methodology effectively reduced the lignin content of the fiber from 33% to 11%, making it possible to obtain cellulose acetate derivatives. The membranes produced from this derivative exhibited a flux of 1.5651 L/m2.h for pure membranes and 0.4017 L/m2.h for membrane AC/PS. The work demonstrated the feasibility of obtaining filtering membranes from coffee husks in a proposal that promotes critical thinking among young students in basic education.
- Author Biographies
- References
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Amaral, H. R., Cipriano, D. F., Santos, M. S. S., Schettino, M. A., Ferreti, J. V. T., Meireles, C. S., Pereira, V. S., Cunha, A. G., Emmerich, F. G., & Freitas, J. C. C.(2019). Production of high-purity cellulose, cellulose acetate and cellulose-silica composite from babassu coconut shells. Carbohydrate Polymers, 210, 127-134. https://doi.org/10.1016/j.carbpol.2019.01.061
Caldas, R. C. R. B. (2011). Biorefino químico do bagaço de cana-de-açucar em reator deleito de lama com produção de sacarídeos e lignina. Dissertação (mestrado) – Universidade Federal de Pernambuco, Recife, PE, Brasil. Recuperado de https://repositorio.ufpe.br/handle/123456789/6550
Candido, R. G., Godoy, G. G., & Gonçalves, A. R. (2017). Characterization and application of cellulose acetate synthesized from sugarcane bagasse. Carbohydrate Polymers, 167, 280-289. https://doi.org/10.1016/j.carbpol.2017.03.057
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Firdaus, I. M., Febiyanto, F., Fitriany, T., Zulhidayah, L. Z., Septiarini, D. A., & Wibowo, O. D. (2019). Synthesis of Cellulose Acetate-Polystyrene Membrane Composites from Pineapple Peel Wastes for Methylene Blue Removal. Al-Kimia, 7(2),113-125. https://doi.org/10.24252/al-kimia.v7i2.8116
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Parra-Poveda, A. R., Moreira, I., Furlan, A. C., Paiano D., Scherer C., & Carvalho, P. L. O. (2008). Utilização da casca de café na alimentação de suínos nas fases de crescimento e terminação. Revista Brasileira de. Zootecnia, 37(3), 433-442. https://doi.org/10.1590/S1516-35982008000300008.
Zamora, A. M., Caterbow, A., & Nobre, C. R. (2019). Atlas do Plástico, Fatos e números sobre o mundo dos polímeros sintéticos. Fundação Heinrich Boll Stiftung. Recuperado de https://br.boell.org/pt-br/2020/11/29/atlas-do-plastico
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- Published
- 2023-12-15
- Section
- Edição Especial "Semana de Química do Norte do Espírito Santo
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