Magnetic micro-robots with surface functionalization of silanes and laccase for wastewater treatment with heavy metals and dyes.
This study presents the feasibility of using functionalized micro-robots to treat wastewater, contaminated with dyes such as Congo red and heavy metals such as arsenic, two types of micro-robots were tested, the first was immobilized with the enzyme laccase and the second type were functionalized wi...
- Autores:
-
Peñaranda Trujillo, Paula Andrea
- Tipo de recurso:
- Fecha de publicación:
- 2021
- Institución:
- Universidad de los Andes
- Repositorio:
- Séneca: repositorio Uniandes
- Idioma:
- spa
- OAI Identifier:
- oai:repositorio.uniandes.edu.co:1992/55831
- Acceso en línea:
- http://hdl.handle.net/1992/55831
- Palabra clave:
- Laccase immobilization
Micro-robots
Wastewater treatment
Adsorption.
Ingeniería
- Rights
- openAccess
- License
- https://repositorio.uniandes.edu.co/static/pdf/aceptacion_uso_es.pdf
| Summary: | This study presents the feasibility of using functionalized micro-robots to treat wastewater, contaminated with dyes such as Congo red and heavy metals such as arsenic, two types of micro-robots were tested, the first was immobilized with the enzyme laccase and the second type were functionalized with APTES, the micro-robots were tested in five concentrations of each contaminant and the treatment was tested for five hours. The maximum percentages of pollutant removal were found when using both types of micro robots, up to 65.6% for arsenic and 11.3% for Congo red. In addition, kinetic models were performed for each pollutant. A correlation is found between CR and the pseudo-second order because, thanks to the enzyme, two phenomena occur in this process, an adsorption phenomenon. and a catalytic one, on the other hand for the treatment of arsenic, the APTES functionalized micro-robots, show a greater correlation with the pseudo first order model, due to the adsorption phenomenon present in this treatment. |
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